JP7455657B2 - refrigerator - Google Patents

Description

Embodiments of the present invention relate to refrigerators.

Traditionally, internal components such as supply channels (ducts) for circulating cold air cooled by a cooler and electrical wiring have been installed on the back side of refrigerator storage compartments such as refrigerator compartments. It doesn't look good when exposed in space. Therefore, a rear wall plate may be provided in the storage room to cover the internal members from the front (see Patent Document 1 below).

This rear wall plate constitutes the inner wall surface of the storage room along with the left and right sides of the inner box and the ceiling surface, and is a member that is easily noticeable to the user and easily affects the aesthetic appearance of the refrigerator, but the shape of the rear wall plate must be carefully considered. There is room for improvement.

Japanese Patent Application Publication No. 2013-80610

The embodiments of the present invention have been made in consideration of the above circumstances, and an object of the present invention is to provide a refrigerator with an excellent aesthetic appearance inside the storage chamber.

In one embodiment, the refrigerator includes: an inner box provided with a storage chamber that opens forward; an outer box disposed outside the inner box; and an outer box provided between the inner box and the outer box. In the refrigerator, the refrigerator includes a refrigerator main body including a heat insulating material housed in a heat insulating space, a cooling device that generates cold air to cool the storage compartment, and a rear wall plate that partitions a back side of the storage compartment. The inner box includes an inner box back surface, a front extending surface extending forward from an upper end and left and right side ends of the inner box back surface, and a connecting portion connecting the inner box back surface and the front extending surface, the connecting portion being , a stepped portion having a curved surface that bulges rearward toward the inside of the storage chamber, or a surface consisting of the curved surface and a plane extending tangentially from the rear end; The wall board is parallel to the front surface of the rear wall board, overlaps the step part in a direction away from the periphery of the rear wall board, and is arranged on the back surface of the inner box so as to cover a part of the step part from the front. A flow path is disposed at the front and is narrower in the width direction than the rear wall plate between the rear wall plate and the back surface of the inner box, through which cool air generated by the cooling device flows, and the flow path is provided on the side of the flow path. A through hole passing through the rear wall plate is provided, an operation panel of the refrigerator is housed between the through hole and the back surface of the inner box, and a connector provided on the lead wire of the operation panel and lead wires of other electrical components. and a housing case for accommodating a connector provided in the control panel, and the housing case is provided below the operation panel.
Further, in one embodiment, the refrigerator includes an inner box provided with a storage chamber opened to the front, an outer box provided outside the inner box, and an outer box provided between the inner box and the outer box. A refrigerator comprising: a refrigerator main body including a heat insulating material housed in a heat insulating space; a cooling device that generates cold air to cool the storage chamber; and a rear wall plate that partitions a back surface of the storage chamber. , the inner box includes an inner box back surface, a front extending surface extending forward from an upper end and left and right side ends of the inner box back surface, and a connecting portion connecting the inner box back surface and the front extending surface; The step portion has a curved surface that bulges rearward toward the inside of the storage chamber as it goes rearward, or a surface consisting of the curved surface and a plane extending tangentially from the rear end, The rear wall board is parallel to the front surface of the rear wall board, overlaps the step part in a direction away from the periphery of the rear wall board, and is arranged in the inner box so as to cover a part of the step part from the front. The rear wall plate is disposed in front of the back surface, and includes an engaging portion that engages with the connecting portion on the peripheral edge of the back surface.
Further, in one embodiment, the refrigerator includes an inner box provided with a storage chamber opened to the front, an outer box provided outside the inner box, and an outer box provided between the inner box and the outer box. A refrigerator comprising: a refrigerator main body including a heat insulating material housed in a heat insulating space; a cooling device that generates cold air to cool the storage chamber; and a rear wall plate that partitions a back surface of the storage chamber. , the inner box includes an inner box back surface, a front extending surface extending forward from an upper end and left and right side ends of the inner box back surface, and a connecting portion connecting the inner box back surface and the front extending surface; The step portion has a curved surface that bulges rearward toward the inside of the storage chamber as it goes rearward, or a surface consisting of the curved surface and a plane extending tangentially from the rear end, The rear wall board is parallel to the front surface of the rear wall board, overlaps the step part in a direction away from the periphery of the rear wall board, and is arranged in the inner box so as to cover a part of the step part from the front. A protrusion is provided in front of the rear wall plate and projects rearward from the back surface of the rear wall plate, and the thickness of the protrusion is smaller than the thickness of the rear wall plate.

A vertical cross-sectional view showing a schematic configuration of a refrigerator according to an embodiment of the present invention Front view of a refrigerator with the door omitted AA sectional view in Figure 1 Perspective view of rear wall board Rear view of rear wall board Enlarged view of main parts of Figure 1 Exploded perspective view of the top of the refrigerator seen from the rear Rear view of the top of the refrigerator without the cover Enlarged view of main parts in Figure 2 Enlarged view of main parts in Figure 3 Enlarged view of the main part of FIG.

EMBODIMENT OF THE INVENTION Hereinafter, the refrigerator 1 of one embodiment of this invention is demonstrated based on drawing. Note that the following embodiments are merely examples, and the scope of the invention is not limited thereto. Various omissions, substitutions, and changes can be made to the following embodiments without departing from the gist of the invention. The following embodiments and their modifications are included within the scope of the invention described in the claims and its equivalents.

In the following description, the left-right direction, the front-back direction, and the up-down direction indicate directions when the refrigerator is viewed from the front, and the left-right direction corresponds to the width direction of the refrigerator. In addition, right, left, top, bottom, back, back, and front refer to the position or side when looking at the refrigerator from the front, unless otherwise specified. Further, in the inner box 4 of the refrigerator 1, the side facing the storage room is defined as the inside of the refrigerator, and the side facing the outer box 3 via the heat insulating material is defined as the heat-insulating space side.

(1) Configuration of refrigerator 1 The configuration of refrigerator 1 will be explained with reference to the drawings. As shown in FIGS. 1 to 3, the refrigerator 1 includes a refrigerator main body 2 that is open at the front. The refrigerator main body 2 includes an outer box 3 made of a steel plate and an inner box 4 made of synthetic resin, and a heat insulating space is provided between the outer box 3 and the inner box 4 to store a heat insulating material such as a foam heat insulating material or a vacuum heat insulating panel. 5 is formed. The refrigerator main body 2 is provided with a plurality of storage chambers inside an inner box 4. Specifically, as shown in FIG. 1, a refrigerator compartment 6 and a vegetable compartment 7 are provided in this order from the top, and a freezing compartment 10 is provided below.

The refrigerator compartment 6 and the vegetable compartment 7 are storage compartments that are cooled to a refrigeration temperature range (for example, 1 to 4° C.) based on the temperature detected by a refrigerator temperature sensor 36 provided on the rear surface. The space between the refrigerator compartment 6 and the vegetable compartment 7 is vertically partitioned by a synthetic resin partition plate 11, and the air in the refrigerator compartment 6 is passed through a communication hole 17 provided at the rear end of the partition plate 11. It flows into the vegetable compartment 7. The front opening of the refrigerator compartment 6 is provided with a pivotable heat insulating door 6a supported by a hinge.

The rear surface of the refrigerator compartment 6 is defined by a rear wall member 40 provided at a distance in front of the inner box rear surface 4e. The rear wall member 40 forms a first flow path portion 24b and a second flow path portion 24c, which constitute a part of the refrigerator side flow path 24 through which cold air supplied to the refrigerator compartment 6 flows, between the rear wall member 40 and the inner box rear surface 4e. do. The rear wall member 40 also includes an operation panel 39 for the user to perform various settings such as temperature settings for the refrigerator compartment 6, the freezer compartment 10, etc., and a refrigerator compartment temperature sensor 36 for detecting the temperature inside the refrigerator compartment 6. is provided.

In the internal space of the refrigerator compartment 6, a plurality of shelf boards 12 are provided vertically at intervals. A lower storage chamber 6b for storing pull-out containers such as the water tank 30 and the storage container 14 is formed in the space vertically partitioned by the partition plate 11 and the lowermost shelf board 12a. An upper storage chamber 6c in which the shelf board 12 is provided is formed in a space partitioned above the shelf board 12a.

The lower storage chamber 6b is divided in the width direction of the refrigerator by a vertical partition wall 13 disposed near one side wall (left side wall) of the refrigerator compartment 6 (see FIG. 3). A water tank 30 and a water supply device 31 are provided in a space between the left side wall of the refrigerator compartment 6 and the vertical partition wall 13. The water tank 30 is a drawer-type container that is stored at a predetermined position in the front-rear direction by a positioning section (not shown) provided on the partition plate 11.

A pull-out storage container 14 is housed in a space sandwiched between the vertical partition wall 13 and the other side wall (right side wall) of the refrigerator compartment 6. The vertical partition wall 13 is arranged so as to be hidden behind the front part of the storage container 14, as shown in FIG.

In the lower storage chamber 6b, a rear wall member 40 disposed at the rear thereof and a housing case 38, which will be described later, are covered from the front by the water tank 30 and the storage container 14.

The upper storage chamber 6c is a storage chamber disposed at the top of the refrigerator 1, and when no stored items are stored, the rear wall plate 41 of the rear wall member 40 disposed at the rear of the upper storage chamber 6c is exposed. It is visible from the front.

Note that the lowermost shelf board 12a may be fixed to the left and right sides 4a and 4b of the inner box 4, or may be detachably attached to the left and right sides 4a and 4b of the inner box 4. .

The ceiling wall of the refrigerator body 2 that forms the ceiling surface of the refrigerator compartment 6 is formed with a lighting storage recess 8 that sinks upward from the inside of the refrigerator (towards the heat insulation space side). A lighting device 80 that illuminates the inside is housed.

A pull-out heat insulating door 7a is provided at the front opening of the vegetable compartment 7. A storage container 15 constituting a storage container is connected to the back side of the heat insulating door 7a, and the storage container 15 is configured to be pulled out of the refrigerator when the door is opened.

The freezer compartment 10 is a storage compartment that is cooled to a freezing temperature range (for example, -10 to -20°C) based on the temperature detected by a freezer compartment temperature sensor 37 provided on the rear surface. The vegetable compartment 7 and the freezer compartment 10 are vertically partitioned by a heat insulating partition wall 16 provided with a heat insulating material inside. A pull-out heat insulating door 10a is provided at the front opening of the freezer compartment 10.

As shown in FIG. 1, the freezer compartment 10 is provided with three storage containers arranged vertically, each consisting of a lower container 100, a middle container 101, and an upper container 102. A lower container 100 is connected to the back side of the heat insulating door 10a, and the lower container 100 and the middle container 101 supported on the upper surface of the lower container 100 are pulled out of the refrigerator when the door is opened. There is.

An ice making device 105 including an ice making tray and an ice removal mechanism is provided above the upper container 102 , and ice produced by the ice making device 105 is dropped into the upper container 102 and stored there. The ice making device 105 constitutes an automatic ice making device together with a water supply tank 30 and a water supply device 31 provided in the refrigerator compartment 6, and water from the water tank 30 sucked up by the water supply device 31 is supplied to an ice tray. There is.

A cooler 21 that generates cold air to cool the storage compartments 6, 7, and 10, and a cooler chamber 23 that houses a cooler fan 22 are provided at the back of the freezer compartment 10. The cooler chamber 23 includes a refrigerator side flow path 24 that supplies cold air generated in the cooler 21 to the refrigerator compartment 6, a freezing side flow path 26 that supplies cold air generated in the cooler 21 to the freezer compartment 10, and A return duct 19 is connected that returns the air that has flowed through the storage chambers 6, 7, and 10 to the cooler chamber 23. A refrigeration damper 25 is provided at the connection between the cooler chamber 23 and the refrigeration side flow path 24, and a refrigeration damper 27 is provided at the connection between the cooler chamber 23 and the refrigeration side flow path 26.

The refrigeration side channel 24 connects a vegetable compartment channel 24a provided at the rear of the vegetable compartment 7 and a first channel section 24b and a second channel section 24c provided at the rear of the refrigerator compartment 6 in order from below. It is formed by

The vegetable compartment flow path 24a is arranged so that its widthwise center is closer to one side in the width direction (in this embodiment, on the right side) from the widthwise center of the vegetable compartment 7. The vegetable compartment channel 24a is connected to the lower end of the first channel section 24b, and the channel width increases as it goes upward from the refrigerating damper 25.

The first flow path section 24b extends upward from the lower end of the lower storage chamber 6b, extends to a position above the lowest shelf board 12a, and is located at the rear of the lower storage chamber 6b and at the lower rear of the upper storage chamber 6c. It is provided. The first flow path portion 24b is arranged such that its widthwise center is closer to one side in the width direction (in this embodiment, on the right side) from the widthwise center of the refrigerator compartment 6.

The upper end of the first flow path portion 24b is connected to the second flow path portion 24c via an inclined portion 24d that slopes diagonally inward in the width direction (to the left in this embodiment) with respect to the vertical direction. There is. The second flow path portion 24c is arranged such that its widthwise center is closer to the widthwise center of the refrigerator compartment 6 than the widthwise center of the first flow path portion 24b.

An air outlet 18b that opens to the lower storage chamber 6b is provided on the front surface of the first flow path section 24b, and an air outlet 18c that opens to the upper storage chamber 6c is provided on the front surface of the second flow path section 24c. ing.

The cooler 21 constitutes a refrigeration cycle together with a compressor 29 and a condenser housed in a machine room 28 formed at the lower back of the refrigerator body 2, and is cooled by the refrigerant discharged from the compressor 29. The cooler 21 cools the air in the cooler chamber 23 to generate cold air for cooling each of the storage chambers 6, 7, and 10.

As shown in FIGS. 6 to 8, a board storage section 60 that recesses forward is provided at the upper rear surface of the refrigerator main body 2, and a control board 70 that controls the refrigerator 1 and electrical components 71 such as a reactor are housed inside the board storage section 60. is provided.

The control board 70 opens and closes the refrigerator damper 25 and freezing damper 27 and rotates the cooler fan 22 based on detection signals input from various sensors 36 and 37 and the operation panel 39 and a control program stored in memory in advance. The overall operation of the refrigerator 1 is controlled by controlling the speed and operating frequency of the compressor 29.

In the refrigerator 1 having such a configuration, the rotation of the cooler fan 22 and the opening/closing of the refrigerator damper 25 and the freezing damper 27 are controlled, and the cold air generated by the cooler 21 is distributed to the refrigerator compartment 6, the vegetable compartment 7, and the freezer compartment. By switching the supply to 10, each of the storage compartments 6, 7, and 10 is cooled so that the temperatures detected by the refrigerator compartment temperature sensor 36 and the freezer compartment temperature sensor 37 satisfy predetermined temperature conditions.

Specifically, when cooling the refrigerator compartment 6 and the vegetable compartment 7, the temperature of the cooler 21 is lowered by driving the compressor 29, and the cooler fan is turned on while the refrigerator damper 25 is opened and the freezer damper 27 is closed. 22. Thereby, the air cooled by the cooler 21 flows upward through the vegetable compartment flow path 24a, the first flow path section 24b, the inclined section 24d, and the second flow path section 24c, and is cooled from the air outlet 18b, 18c. It is supplied to the compartment 6 and cools the refrigerator compartment 6. The air flowing through the refrigerator compartment 6 flows into the vegetable compartment 7 through the communication hole 17 provided in the partition plate 11, cools the inside of the vegetable compartment 7, and then flows through the suction port 19a provided on the back side of the vegetable compartment 7. It is taken into the return duct 19, returns to the cooler chamber 23, and exchanges heat with the cooler 21 again to be cooled.

When cooling the freezer compartment 10, the compressor 29 is driven to lower the temperature of the cooler 21, and the cooler fan 22 is driven with the freezing damper 27 open and the refrigerating damper 25 closed. Thereby, the air cooled by the cooler 21 is supplied to the freezing compartment 10 from the blow-off port 34 through the freezing side flow path 26, thereby cooling the freezing compartment 10. The air flowing through the freezing compartment 10 is taken into the return duct 19 from the suction port 19b provided on the back side of the freezing compartment 10, returns to the cooler compartment 23, and is cooled by exchanging heat with the cooler 21 again.

(2) Refrigerator body 2
Next, the configuration of the refrigerator main body 2 will be explained.

The inner box 4 is made of a synthetic resin molded body integrally molded using a vacuum forming machine, and has a front surface having an inner box left side surface 4a, an inner box right side surface 4b, an inner box top surface 4c, an inner box bottom surface 4d, and an inner box back surface 4e. It has an open box shape.

As shown in FIGS. 1 and 6, the portion of the inner box back surface 4e located at the rear of the refrigerating chamber 6 is formed of a surface whose inclination with respect to the vertical direction increases as it goes upward. In this embodiment, the inner box back surface 4e is provided with an inner box vertical surface 4e1 that extends parallel to the vertical direction from the lower end of the refrigerator compartment 6, and an inner box vertical surface 4e1 that is inclined toward the front as it goes upward. and an inner box connecting surface 4e3 that smoothly connects the inner box vertical surface 4e1 and the inner box slanted surface 4e2.

Note that the surface whose inclination with respect to the vertical direction increases as it goes upwards is not limited to the surface that connects the vertical surface of the inner box and the sloped surface of the inner box 1 as described above, but, for example, the vertical surface of the inner box and the vertical surface A plurality of inner box inclined surfaces with different inclinations in the vertical direction are arranged vertically and connected so that the inclination in the vertical direction becomes larger as you go upward, or a plurality of inner box inclined surfaces with different inclinations in the vertical direction without providing a vertical surface of the inner box. The inner box slanted surface may be a surface that is connected vertically so that the slope relative to the vertical direction increases as it goes upward, or a surface that gradually curves so that the slope relative to the vertical direction increases as it moves upward. Further, in the above embodiment, the inner box vertical surface and the inner box inclined surface are smoothly connected via the inner box connecting surface, but it is also possible to directly connect the inner box vertical surface and the inner box inclined surface without intervening the inner box vertical surface and the inner box inclined surface. Slanted surfaces having different inclinations in different directions may be directly connected without using a connecting surface.

In addition, portions of the inner box left side surface 4a, the inner box right side surface 4b, and the inner box top surface 4c that partition the upper storage chamber 6c are connected to the inner box back surface 4e via a connecting portion 4f. In this embodiment, an inner box left side surface 4a, an inner box right side surface 4b, and an inner box top surface 4c that partition the upper storage chamber 6c extend forward from the left and right side ends and the upper end of the inner box back surface 4e via a connecting portion 4f. It is an elongated surface.

As shown in FIGS. 3, 6, 10, and 11, the connecting portion 4f is provided at the step portion 4g connected to the rear end of the front extension surfaces 4a, 4b, and 4c, and at the rear end of the step portion 4g. A stepped recess is formed at the inner part of the inner box 4 together with the inner box rear surface 4e.

The step portion 4g includes a curved surface 4g1 connected to the rear ends of the front extending surfaces 4a, 4b, and 4c, and a flat surface 4g2 extending rearward from the rear end of the curved surface 4g1. The curved surface 4g1 is a curved surface that bulges rearward so as to go inward of the upper storage chamber 6c as it goes rearward. The curved surface 4g1 has a common tangent at the connection points with the front extension surfaces 4a, 4b, and 4c, and is smoothly connected to the front extension surfaces 4a, 4b, and 4c. The plane 4g2 is a plane extending tangentially from the rear end of the curved surface 4g1, and the concave portion 4h is connected to the rear end.

The concave forming portion 4h includes a rear extension portion 4h1 that bends rearward from the rear end of the plane 4g2 and extends rearward, and a rear extension portion 4h1 that inclines inward in the width direction as it goes rearward from the rear end of the rear extension portion 4h1. It includes an inclined portion 4h2.

Further, as shown in FIGS. 3 and 11, the concave forming portion 4h includes an inner box engaging portion 4i that engages with a locking piece 50 provided on the rear peripheral edge of the rear wall plate 41 of the rear wall member 40. There are multiple locations spaced apart.

In this embodiment, the length of the recessed portion 4h in the front-back direction is shorter than the length of the stepped portion 4g in the front-back direction. Further, the angle θh of the inclined portion 4h2 of the concave forming portion 4h with respect to the front-back direction is smaller than the angle θg of the flat surface 4g2 of the stepped portion 4g with respect to the front-back direction, and the sloped portion 4h2 extends from the flat surface 4g2 in the direction along the front-back direction ( (See Figure 10).

The outer box 3 made of steel plate and forming the outer shell of the refrigerator body 2 faces the inner box left side 4a, the inner box right side 4b, the inner box top surface 4c, the inner box bottom surface 4d, and the inner box back surface 4e of the inner box 4, respectively. It has a box-like shape with an opening on the front side and has an outer box left side surface 3a, an outer box right side surface 3b, an outer box top surface 3c, an outer box bottom surface 3d, and an outer box back surface 3e. The left side surface 3a of the outer case, the right side surface 3b of the outer case, and the upper surface 3c of the outer case are formed by bending a single long steel plate into a substantially U-shape. The outer box bottom surface 3d and the outer box back surface 3e are members provided separately from the outer box left side surface 3a, the outer box right side surface 3b, and the outer box top surface 3c. A stepped portion for forming a machine room 28 is formed by bending on the bottom surface 3d of the outer box.

As shown in FIGS. 7 and 8, a pair of left and right handle portions 35 are provided at the left and right upper ends of the outer box back surface 3e. The left and right handle portions 35 each include a hollowed out portion 35a that sinks forward from the outer box back surface 3e, and a grip portion 35b that forms an opening on the top surface that communicates with the hollowed out portion 35a. In the rear view as shown in FIG. 8, the gouged portion 35a has a relief portion 35c recessed outward in the width direction at a lower corner portion inside the refrigerator 1 in the width direction. In addition, at the upper end of the outer box back 3e,
A board storage part 60 that stores a control board 70 and electrical components 71 is provided between the left and right handle parts 35 .

(3) Board storage section 60
Next, the configuration of the substrate storage section 60 will be explained with reference mainly to FIGS. 6 to 8. The board storage section 60 has a dish shape that is flat in the front-rear direction and opens rearward. The substrate storage section 60 is arranged behind the inner case inclined surface 4e2 such that a storage section bottom surface 61 constituting the bottom surface faces the inner case inclined surface 4e2 front and back through a heat insulating material.

Specifically, as shown in FIGS. 7 and 8, the bottom surface 61 of the storage part has a board mounting surface 61a provided on the lower side and having a substantially rectangular shape in rear view, and a component provided on the upper side of the board mounting surface 61a. and a mounting surface 61b. The component mounting surface 61b is provided between the pair of handle parts 35 so as to overlap with the pair of left and right handle parts 35 in the left-right direction, and has a shape that becomes narrower toward the top.

As shown in FIG. 6, in the board storage section 60, the lower end of the storage section bottom surface 61 (the lower end of the board mounting surface 61a) is located above the lower end of the inner box inclined surface 4e2 (the connection point with the inner box connecting surface 4e3). It is provided on the outer box back surface 3e so as to be positioned.

The board mounting surface 61a constitutes a storage slope that slopes toward the front as it goes upward, similar to the inner box slope 4e2 located in front of the board mounting surface 61a. The component mounting surface 61b constitutes an extended surface extending parallel to the vertical direction from the upper end of the board mounting surface 61a, and is provided forward of the board mounting surface 61a.

In this embodiment, the inclination angle θ1 of the board mounting surface 61a with respect to the vertical direction is set smaller than the inclination angle θ2 of the inner box inclined surface 4e2 with respect to the up-down direction. Incidentally, the inclination angle θ1 of the board mounting surface 61a is not limited to being set smaller than the inclination angle θ2 of the inner box inclined surface 4e2, and may be the same as the inclination angle θ2 of the inner box inclined surface 4e2. It may be larger than the inclination angle θ2 of the inclined surface 4e2.

In addition, in this embodiment, the board storage section 60 is provided on the rear surface 3e of the outer box so that the entire board mounting surface 61a faces the inner box inclined surface 4e2 in the front-rear direction, and the upper portion of the component mounting surface 61b faces the connecting portion 4f of the inner box 4 in the front-rear direction.

The control board 70 is attached to the board mounting surface 61a so that the plate surface of the printed circuit board 70a is parallel to the board mounting surface 61a. That is, the control board 70 is provided in the refrigerator main body 2 in an inclined state such that the printed circuit board 70a is tilted toward the front as it goes upward.

As shown in FIG. 8, an electrical component 71 is attached to the component mounting surface 61b, and a first insertion hole 62 and a second insertion hole 63 are provided on both sides of the electrical component 71 in the width direction.

As shown in FIGS. 6 and 7, the board storage section 60 has a rear opening covered by a lid 64 with the control board 70 and electrical components 71 stored therein. The lid body 64 is fixed to the outer case back surface 3e with a fixing member 65 such as a screw. In this manner, the lid body 64 is fixed to the outer box back surface 3e, and is located forward of the rear end of the grip portion 35b of the handle portion 35.

(4) Control board 70 and electrical components 71
Next, the configurations of the control board 70 and the electrical components 71 will be explained mainly with reference to FIGS. 6 to 8.

The control board 70 includes a microcomputer that controls the refrigerator 1, a memory that stores a control program, etc., a plurality of mounted components 72 such as a smoothing capacitor that constitutes a part of a rectifier circuit, etc., are mounted on a printed circuit board 70a. An electrical component 71 attached to the mounting surface 61b is connected.

Among the mounted components 72 mounted on the control board 70, the component 72a with the largest protrusion height from the printed circuit board 70a (hereinafter, this component may also be referred to as a "tall component") is located at some point from the center of the printed circuit board 70a. It is mounted near the periphery.

Such a control board 70 is attached to the board mounting surface 61a such that the tall component 72a is located above the vertical center of the printed board 70a. Further, in this embodiment, as shown in FIG. 8, at least a part of the tall component 72a is mounted on the printed circuit board 70a so as to be located below the electrical component 71 attached to the component mounting surface 61b. .

The electrical component 71 is one or more components connected to the control board 70, such as a reactor or an additional board provided separately from the control board 70. As shown in FIG. 6, the size of the reactor constituting the electrical component 71 in the front-rear direction when attached to the component mounting surface 61b is equal to the height from the printed circuit board 70a to the tip of the tall component 72a (projection height). ) is greater than.

A power supply line 73 to which power is supplied from the outside is connected to the control board 70, and a first conductor wire 73 having one or more conductive wires used for power supply and signal communication to sensors and electric devices installed in the refrigerator 1 is connected to the control board 70. A board lead wire 74a and a second board lead wire 74b are connected.

The first board lead wire 74a is an equipment lead wire 75a connected to the refrigerator room temperature sensor 36, the freezer room temperature sensor 37, the cooler fan 22, the refrigerator damper 25, the freezer damper 27, the operation panel 39, and the lighting device 80. 75b, 75c, and 75d, and supplies power to these sensors and electrical equipment, and sends and receives signals.

The first board lead wire 74a enters the heat insulating space 5 of the refrigerator main body 2 from the board storage part 60 through the first insertion hole 62 provided in the component mounting surface 61b, and enters the heat insulating space 5 of the refrigerator body 2 on one side of the rear left and right side of the heat insulating space 5 ( For example, on the left side), the wires are drawn out to the housing case 38, and are connected to device lead wires 75a, 75b, 75c, and 75d within the housing case 38 via connectors.

Further, the second board lead wire 74b enters the heat insulating space 5 of the refrigerator body 2 from the board storage part 60 through the second insertion hole 63 provided in the component mounting surface 61b, passes through the heat insulating space 5, and enters the machine room. 28 and is connected to a compressor 29. In addition, after the second board lead wire 74b enters the heat insulating space 5 through the second insertion hole 63, the second board lead wire 74b avoids one side of the rear left and right side of the heat insulating space 5 where the first board lead wire 74a is wired, and enters the heat insulating space. It is preferable that the wiring be routed to the machine room 28 through the left and right sides of the rear part of the housing 5.

(5) Rear wall member 40
As shown in FIGS. 4 to 6, the rear wall member 40 provided at the back of the refrigerator compartment 6 includes a rear wall plate 41 that constitutes its front part, and a flow path attached to the back surface of the rear wall plate 41. It includes a forming member 42 and protrusions 52a and 52b that protrude rearward from the back surface of the rear wall plate 41.

The rear wall plate 41 is a plate-shaped body that partitions the rear surface of the upper storage chamber 6c, and the front surface thereof has a surface whose inclination with respect to the vertical direction increases as it goes upward.

Specifically, the front surface of the rear wall plate 41 includes a vertical surface 41a extending parallel to the vertical direction from the lower end of the refrigerator compartment 6, and a slope provided above the vertical surface 41a that slopes toward the front as it goes upward. It has a surface 41b and a connecting surface 41c that smoothly connects the vertical surface 41a and the inclined surface 41b.

That is, the front surface of the rear wall board 41 has a vertical surface 41a and an inclined surface 41b having different inclinations in the vertical direction, which are arranged vertically so that the inclinations in the vertical direction become larger as they go upward, and are connected via the connecting surface 41c. It is made up of surfaces.

Note that the surface whose inclination with respect to the vertical direction increases as it goes upwards is not limited to a surface that connects a vertical surface and one inclined surface as described above, but, for example, a plurality of surfaces whose inclinations with respect to the vertical direction differ from the vertical surface. A surface that is connected vertically so that the slope with respect to the vertical direction increases as it goes upward, or a surface that connects multiple slope surfaces that have different slopes with respect to the vertical direction without providing a vertical surface. It may be a surface that is vertically arranged and connected so that the inclination increases, or a surface that gradually curves so that the inclination with respect to the vertical direction increases as it goes upward. Furthermore, in the above-described embodiment, the vertical plane and the inclined surface are connected smoothly via the connecting surface, but it is also possible to connect the vertical plane and the inclined surface directly, or to connect the inclined surfaces with different inclinations in the vertical direction via the connecting surface. It is also possible to connect them directly.

Further, the vertical surface 41a, the inclined surface 41b, and the connecting surface 41c that constitute the rear wall plate 41 are connected to the inner box vertical surface 4e1, the inner box inclined surface 4e2, and the inner box connecting surface 4e3 provided on the inner box rear surface 4e in the front-rear direction. It is preferable that they be provided in parallel so as to maintain a constant interval between them.

The vertical surface 41a and the inclined surface 41b are flat planes without irregularities in the width direction, and the connecting surface 41c is a curved surface without irregularities in the width direction. Here, a flat plane with no irregularities in the width direction and a curved surface with no irregularities in the width direction correspond to the front and back surfaces of the rear wall plate 41 without changing the substantial thickness of the rear wall plate 41. The front surface of the rear wall board 41 is made uneven so that the thickness of the rear wall board 41 changes, and marks and patterns are placed on the front surface of the rear wall board 41. Including the surface provided.

Among the planes that partition the rear surface of the upper storage chamber 6c in the rear wall plate 41, the plane located most upwardly is provided longer than the other planes in the vertical direction. In this embodiment, a portion 41a1 of the vertical surface 41a located above the lowest shelf board 12a (hereinafter, this portion may be referred to as "upper vertical surface") 41a1 and the inclined surface 41b are located in the upper storage chamber 6c. The height h1 in the vertical direction of the inclined surface 41b that partitions the rear surface and is located at the uppermost position is longer than the height h2 in the vertical direction of the upper vertical surface 41a1.

Further, as shown in FIGS. 10 and 11, the front corner 41d of the peripheral edge of the rear wall plate 41 is chamfered to a larger extent by a curved or flat surface than the rear corner 41e.

As shown in FIGS. 2 and 4, at the lower end of the rear wall plate 41 that partitions the rear surface of the lower storage chamber 6b, cutouts 45a are provided on both left and right sides, leaving a portion that covers the front surface of the flow path forming member 42. 45b is provided. The water supply device 31 and the housing case 38 are arranged in the cutout 45a on one side, and the communication hole 17 that communicates the refrigerator compartment 6 and the vegetable compartment 7 is provided below the cutout 45b on the other side.

When such a rear wall plate 41 is attached to the deep part of the refrigerator compartment 6 as shown in FIG. , covers a part of the stepped portion 4g provided on the outside of the concave forming portion 4h from the front.

Specifically, as shown in FIGS. 2, 3, 6, 10, and 11, the left and right side edges of the rear wall plate 41 overlap the plane 4g2 of the stepped portion 4g in the left-right direction and the front-rear direction, and the rear wall plate 41 The rear wall plate 41 is arranged in the inner part of the upper storage chamber 6c so that the upper edge thereof overlaps the plane 4g2 of the stepped portion 4g in the vertical direction and the front-back direction. That is, the rear wall plate 41 continues from the left and right sides and above of the inner box back surface 4e and covers the concave portion 4h side (rear side) of the stepped portion 4g of the inner box 4 from the front.

A channel forming member 42 having a width narrower than that of the rear wall plate 41 is attached to the back surface of the rear wall plate 41 . The flow path forming member 42 is a heat insulating molded body formed by forming a heat insulating material such as a foam heat insulating material into a substantially U-shape in horizontal cross section with an opening at the rear. The rear end surface 42a of the flow path forming member 42 comes into contact with the inner box back surface 4e via a sealing member such as soft tape (see FIG. 3). Thereby, the flow path forming member 42 forms a first flow path portion 24b and a second flow path portion 24c between it and the inner box back surface 4e.

An air outlet 18b that penetrates the front surface of the flow path forming member 42 and the rear wall plate 41 and opens into the lower storage chamber 6b is provided on the front surface of the first flow path portion 24b. An air outlet 18c is provided that penetrates the front and rear wall plates 41 of the flow path forming member 42 and opens into the upper storage chamber 6c. In this embodiment, the widthwise center portions of the blower outlet 18b and the blower outlet 18c are provided so as to be located at the widthwise center portion of the rear wall plate 41, and the widthwise center portions of the lower storage chamber 6b and the upper storage chamber 6c. It is located in the department.

As shown in FIGS. 5 and 6, the back surface of the rear wall plate 41 is provided with an outer protrusion 51a, an inner protrusion 51b, a first protrusion 52a, and a second protrusion 52b.

The outer protrusion 51a protrudes rearward from the back surface of the rear wall plate 41 on the widthwise outer side of the flow path forming member 42, and engages with a holder 51c (see FIG. 6) that protrudes forward from the inner box back surface 4e. A rear wall plate 41 is fixed to the inner box back surface 4e. The inner protrusion 51b protrudes rearward from the back surface of the rear wall plate 41 through the flow path forming member 42, and engages with a protrusion (not shown) that protrudes forward from the inner box rear surface 4e, thereby connecting the inner box rear surface 4e and the inner box rear surface 4e. The rear wall plate 41 is fixed to the inner box back surface 4e with the flow path forming member 42 sandwiched therebetween.

When the rear wall member 40 is fixed to the inner box back surface 4e by the outer protrusion 51a and the inner protrusion 51b, the peripheral edge of the rear wall plate 41 is parallel to the front surface of the rear wall plate 41 in the upper storage chamber 6c, and , the inner part of the refrigerator compartment 6 so as to overlap the stepped portion 4g of the inner box 4 in the direction away from the periphery of the rear wall plate 41 (hereinafter, this direction may also be referred to as "out-of-plane direction of the rear wall plate 41"). will be placed in In this embodiment, the front left and right side edges of the rear wall board 41 overlap the step 4g of the inner box 4 in the width direction of the upper storage chamber 6c, and the front upper edge of the rear wall board 41 overlaps the step 4g of the inner box 4. The rear wall plate 41 is arranged at the back of the refrigerator compartment 6 so as to vertically overlap with the refrigerator 4g.

The first protrusion 52a is provided along the rear peripheral edge of the rear wall plate 41 so as to face the concave portion 4h of the inner box 4 at a predetermined interval when the rear wall member 40 is attached to the refrigerator compartment 6. It is being A locking piece 50 is provided on the first protrusion 52a at a position facing the inner box engaging portion 4i provided in the recessed portion 4h. When the locking piece 50 engages with the opposing inner box engaging portion 4i, the locking piece 50 moves inside so that the peripheral edge of the rear wall plate 41 overlaps the plane 4g2 of the stepped portion 4g of the inner box 4 in the direction out of the plane of the rear wall plate 41. It is fixed to the box 4.

The second protrusion 52b is provided along both sides of the flow path forming member 42 in the width direction, and the upper end of the second protrusion 52b is a first protrusion that extends in the width direction of the refrigerator along the upper edge of the rear wall plate 41. 52a. The second protrusion 52b holds the flow path forming member 42 by the protrusion 52b1 protruding toward the flow path forming member 42 being engaged with the flow path forming member 42.

The thickness of the first protrusion 52a and the second protrusion 52b is set to be thinner than the thickness of the rear wall plate 41.

In addition to the protrusions 51a and 51b and the protrusions 52a and 52b, the back surface of the rear wall plate 41 also includes a claw portion 53 and a lead wire guide portion 54 that hold the device lead wire 75a connected to the operation panel 39. A sensor mounting portion 55 for fixing the refrigerator compartment temperature sensor 36 to the back surface of the rear wall plate 41 is provided.

As shown in FIG. 4, the rear wall plate 41 is provided with a horizontally elongated rectangular through hole 56 for housing the operation panel 39 and a cold air introduction window 57. The through hole 56 passes through the vertical upper portion 41a1 on the other side in the width direction (in this embodiment, the left side) of the first flow path portion 24b, which is arranged closer to one side in the width direction than the center in the width direction of the refrigerator compartment 6. It is set up like this.

(6) Operation panel 39 and refrigerator room temperature sensor 36
As shown in FIGS. 4 and 5, a frame 58 that protrudes rearward is provided at the peripheral edge of the through hole 56, and the operation panel 39 inserted into the through hole 56 is locked to the frame 58. . A hole 58a is provided on the lower side of the frame 58 to draw out the device lead wire 75a connected to the operation panel 39 to the outside of the frame 58 on the back surface of the rear wall plate 41. The operation panel 39 is fixed in a state where it is housed between the through hole 56 and the inner box back surface 4e located behind the through hole 56, with the operation buttons and display facing forward. The operation panel 39 is arranged above the housing case 38 provided in the notch 45a of the rear wall plate 41.

The device lead wire 75a connected to the operation panel 39 is drawn out below the operation panel 39 through the hole 58a of the frame 58, and is wired to the housing case 38 along the back surface of the rear wall plate 41.

Specifically, as shown in FIG. 4, FIG. 5, and FIG. It is bent toward the center in the width direction (towards the first flow path section 24b) and wired along the lead wire guide section 54. The lead wire guide portion 54 is provided on the second protrusion 52b while tilting the device lead wire 75a so that the farther from the operation panel 39 (in this embodiment, the closer to the first flow path portion 24b) the lead wire guide portion 54 is located upward. through hole 52b2.

The device lead wire 75a enters the inside of the second protrusion 52b (flow path forming member 42 side) through the insertion hole 52b2, and connects the lead formed between the second protrusion 52b and the flow path forming member 42. The wire is routed along the edge of the first channel portion 24b through the wire storage portion 59 to the lower end of the lower storage chamber 6b. Then, the device lead wire 75a is drawn out below the housing case 38 through the lead-out hole 52b3 provided at the lower end of the second protrusion 52b.

Further, above the through hole 56, a sensor mounting portion 55 is provided on the back surface of the rear wall plate 41, and a refrigerator compartment temperature sensor 36 is fixed to the sensor mounting portion 55. A cold air introduction window 57 passing through the rear wall plate 41 is provided in front of the refrigerator compartment temperature sensor 36 so that air in the upper storage compartment 6c can come into contact with the refrigerator compartment temperature sensor 36 through the cold air introduction window 47. It has become.

Similarly to the device lead wire 75a of the operation panel 39, the device lead wire 75b connected to the refrigerator temperature sensor 36 also enters the inside of the second protrusion 52b through the insertion hole 52b4 provided in the second protrusion 52b. The wires are then routed through the lead wire storage section 59 to the lower end of the lower storage chamber 6b, and are drawn out to the lower part of the housing case 38 through the lead-out hole 52b3 together with the device lead wire 75a of the operation panel 39.

(7) Housing case 38
As shown in FIG. 9, the housing case 38 consists of a box body including a case body 38a provided with an opening on the front surface and a lid body 38b that closes the opening. Equipment lead wires 75a and 75b enter into the housing case 38 through the lower surface hole 38a1.

In addition to equipment lead wires 75a and 75b connected to the operation panel 39 and the refrigerator temperature sensor 36, the housing case 38 has wires connected to the freezer temperature sensor 37, the cooler fan 22, the refrigerator damper 25, and the freezing damper 27. The device lead wire 75c connected to the lighting device 80 and the device lead wire 75d connected to the lighting device 80 enter the inside of the housing case 38 from the bottom hole 38a1.

A shielding plate 38b1 is provided in front of the lower surface hole 38a1 and protrudes from the lower end of the lid 38b downward and toward the first flow path portion 24b. The shielding plate 38b1 covers the device lead wires 75a, 75b, 75c, and 75d that enter the bottom hole 38a1 from below the housing case 38 from the front.

A back hole 38a2 that communicates with a hole provided in the inner box back 4e and opens to the heat insulating space 5 is provided on the back of the case body 38a, and a first board lead wire 74a extending from the control board 70 is connected to the back hole. 38a2 and enters the inside of the housing case 38.

The first board lead wire 74a that entered the inside of the housing case 38 from the back hole 38a2 connects with the device lead wires 75a, 75b, 75c, and 75d that entered the inside of the housing case 38 from the bottom hole 38a1 and the connector inside the housing case 38. Connected via.

(8) Effect In this embodiment as described above, since the rear wall plate 41 is configured with a surface whose inclination with respect to the vertical direction increases as it goes upward, the vertical No uneven shape is formed in the direction, and the beauty of the inside of the upper storage chamber 6c can be improved.

In particular, when the front surface of the rear wall plate 41 is formed of a surface that slopes forward as it goes upward, the rear wall plate can be used to reduce the visual discomfort while suppressing the upper back part of the upper storage chamber 6c, which is difficult to utilize effectively. 41, and a space for arranging refrigerator components such as the control board 70 can be formed behind the partition. In other words, a space for arranging the refrigerator components can be secured without impairing the substantial storage volume, heat insulation performance, or internal aesthetics of the upper storage chamber 6c.

In this embodiment, the rear wall plate 41 is arranged in front of the inner box back surface 4e so as to overlap the step portion 4g in the out-of-plane direction of the rear wall plate 41 and cover a part of the step portion 4g from the front. In this case, the peripheral edge of the rear wall plate 41 can be brought close to the stepped portion 4g of the inner box 4 in the left-right direction and the front-back direction. As a result, the rear wall plate 41 does not appear to protrude unnaturally from the inner box 4, but appears to be continuous from the front extension surfaces 4a, 4b, and 4c via the stepped portion 4g, and the upper The aesthetic appearance of the interior of the storage chamber 6c can be improved.

In this embodiment, when the front corner 41d of the periphery of the rear wall board 41 is chamfered by a curved surface or a flat surface to a larger extent than the rear corner 41e, the periphery of the rear wall board 41 becomes even less noticeable. , the aesthetic appearance of the interior of the upper storage chamber 6c can be improved.

In this embodiment, when the inclined surface 41b located at the uppermost position among the planes 41a1 and 41b constituting the front surface of the rear wall plate 41 is provided to be long in the vertical direction, the visual discomfort caused by the inclined surface 41b can be suppressed as much as possible.

In this embodiment, when the front surface of the rear wall plate 41 is provided flat in the width direction of the upper storage chamber 6c, no uneven shape is formed on the entire back surface of the upper storage chamber 6c, which improves the aesthetic appearance of the inside of the upper storage chamber 6c. It can be further improved.

In this embodiment, when the operation panel 39 is stored between the through hole 56 provided in the rear wall plate 41 and the inner box back surface 4e, the operation panel 39 can be stored without sacrificing the thickness of the heat insulation space in the refrigerator body 2. The front peripheral edge of the rear wall plate 41 may be arranged so as to project slightly forward from the front surface of the rear wall plate 41 so that the operation panel 39 is visually emphasized, or the front side of the operation panel 39 may be flush with the front surface of the rear wall plate 41 without any difference in level. The degree of freedom in arranging the operation panel 39 is increased, such as arranging it so as to configure the operation panel 39.

In this embodiment, the first flow path portion 24b formed between the rear wall plate 41 and the inner box back surface 4e is arranged closer to one side in the width direction than the center in the width direction of the upper storage chamber 6c, and When the through hole 56 for accommodating the operation panel 39 is arranged in the rear wall plate 41, the through hole 56 can be easily provided in the rear wall plate 41, and the degree of freedom in the size and arrangement of the operation panel 39 can be increased.

In this embodiment, when the through hole 56 for housing the operation panel 39 is provided on the vertical surface 41a of the rear wall plate 41, the operation panel 39 can be attached to the vertical surface 41a facing the front of the refrigerator 1, making it easy to operate. An operation panel 39 can be placed at the position.

In this embodiment, the connecting portion 4f that connects the inner box back surface 4e and the front extending surfaces 4a, 4b, 4c has a curved surface 4g1 that bulges rearward toward the inside of the upper storage chamber 6c as it goes rearward. , and a concave forming portion 4h that forms a concave portion that recesses backward between the inner box rear surface 4e and the inner box rear surface 4e, suppresses deformation that occurs in the connecting portion 4f of the inner box 4 when foam-filling the heat insulating material into the heat insulating space 5. can do.

That is, in order to foam-fill the heat insulating material into the heat insulating space 5, the heat insulating material is filled on the outside of the outer box 3 and the inner box 4 while supporting the outer sides with jigs having shapes corresponding to the respective outer boxes. At that time, if the curved surface 4g1 is formed on the connecting portion 4f, the shape of the inner box 4 will be difficult to match the jig that supports the inner box 4 due to errors that occur during molding of the inner box 4, and the curved surface will occur during foam filling. The surface 4g1 is easily deformed. When the inner box 4 is provided with the concave forming portion 4h behind the curved surface 4g1 as described above, the shape of the inner box 4 easily matches the jig that supports the inner box 4, and the curved surface 4g1 is formed into a neat curved shape. can do.

In this embodiment, the refrigeration side flow path 24 formed between the rear wall plate 41 and the inner box back surface 4e is a first flow path disposed closer to one side in the width direction than the center in the width direction of the upper storage chamber 6c. section 24b and a second flow path section 24c disposed closer to the widthwise center of the upper storage chamber 6c than the first flow path section 24b, an operation panel 39 is provided on the side of the first flow path section 24b. It is possible to cool the upper storage chamber 6c by uniformly supplying cold air in the width direction of the upper storage chamber 6c while ensuring a space for arranging the upper storage chamber 6c.

In this embodiment, the connector of the device lead wire 75a connected to the operation panel 39, the refrigerator compartment temperature sensor 36, the freezer compartment temperature sensor 37, the cooler fan 22, the refrigerator damper 25, the freezing damper 27, the operation panel 39, and Connectors for device lead wires 75b, 75c, and 75d connected to the lighting device 80 are provided in the housing case 38 disposed below the operation panel 39, and are connected to the first board connected to the control board 70 inside the housing case 38. When connected to the lead wire 74a, the length of each lead wire can be shortened, and each connector can be connected from the front of the refrigerator, thereby improving work efficiency.

In this embodiment, when the device lead wire 75a is connected to the lower side of the operation panel 39, water condensed on the device lead wire 75a does not enter the operation panel 39 through the device lead wire 75a. In addition, when the rear wall plate 41 is provided with a lead wire guide section 54 that guides the device lead wire 75a in an inclined state so that it is positioned upward as the distance from the operation panel 39 increases, dew condensation may occur on the device lead wire 75a. Water does not enter the operation panel 39 along the device lead wire 75a.

In this embodiment, the pull-out water tank 30 and the storage container 14 are provided in front of the housing case 38, so that the housing case 38 is less noticeable when the refrigerator is in use and does not spoil the aesthetics of the interior of the refrigerator compartment 6.

In this embodiment, when the device lead wire 75a connected to the operation panel 39 is wired to the housing case 38 along the edge of the first flow path section 24b provided on the side of the housing case 38, The length of the device lead wire 75a can be shortened, and the device lead wire 75a can be held by the rear wall member 40 that partitions the first flow path portion 24b, resulting in excellent assembly workability.

In this embodiment, since the locking piece 50 provided on the rear peripheral edge of the rear wall plate 41 engages with the inner box engaging portion 4i provided on the connecting portion 4f of the inner box 4, the rear wall plate 41 The peripheral edge of the upper storage chamber 6c can be placed at a desired position in the inner box 4, and the appearance of the interior of the upper storage chamber 6c can be improved.

In this embodiment, when the protrusions 52a and 52b, which are thinner than the thickness of the rear wall plate 41, protrude rearward from the back surface of the rear wall plate 41, deformation such as warping or twisting of the rear wall plate 41 can be suppressed. At the same time, it is possible to suppress the occurrence of sink marks (dents) on the front surface of the rear wall plate 41 due to the protrusions 52a and 52b.

Furthermore, in the present embodiment, the storage section bottom surface 61 of the board storage section 60 to which the control board 70 and the electrical components 71 are attached is arranged so as to face the inner box slope surface 4e2 that slopes forward as it goes upward. There is. As a result, in this embodiment, the upper back part of the upper storage chamber 6c, which is difficult to be used effectively, is divided into front and rear parts by the inner box back surface 4e, without creating an uneven shape on the back surface of the upper storage chamber 6c, and the rear part of the upper storage chamber 6c is divided into front and rear parts, and the rear part of the upper storage chamber 6c is controlled. A board 70 and electrical components 71 can be housed therein. Therefore, a space for arranging the refrigerator components can be secured without impairing the substantial storage volume, heat insulation performance, or internal aesthetics of the upper storage chamber 6c.

In this embodiment, when the storage bottom surface 61 of the board storage section 60 has a component mounting surface 61b on which the electric component 71 is mounted above the board mounting surface 61a on which the control board 70 is mounted, there is a case where the bottom surface 61 of the board storage section 60 has a component mounting surface 61b on which the electrical component 71 is mounted. The electrical component 71, which tends to protrude during installation, can be placed above where a space can easily be formed by the slope of the inner box inclined surface 4e2, and the control board 70 and the electrical component 71 can be efficiently provided in the refrigerator main body 2.

In this embodiment, when the storage part bottom surface 61 of the board storage part 60 provided so as to face the inner box inclined surface 4e2 in the front and back directions is provided with the board mounting surface 61a that slopes forward as it goes upward, the upper storage part The volume of the board storage section 60 can be expanded while maintaining the storage volume and heat insulation performance of the board 6c, and the control board 70 and the electric components 71 can be provided in the refrigerator main body 2 more efficiently.

In this embodiment, when the control board 70 is attached to the board mounting surface 61a so as to be inclined forward as it goes upward along the board mounting surface 61a, the control board 70 can be provided in the refrigerator main body 2 more efficiently. I can do it.

In the present embodiment, when the control board 70 is attached to the board mounting surface 61a such that the tall component 72a is located above the vertical center of the control board 70, the tall component 72a is positioned toward the front on the board mounting surface 61a. The tall component 72a can be disposed at the position, and the control board 70 can be efficiently provided in the refrigerator main body 2.

In this embodiment, when the component mounting surface 61b is a plane extending parallel to the vertical direction, even if the electrical component 71 mounted on the component mounting surface 61b is a large electrical component such as a reactor, it can be stably fixed. be able to.

In this embodiment, the insertion holes 62 and 63 for inserting the first board lead wire 74a and the second board lead wire 74b connected to the control board 70 into the heat insulation space are provided on the side of the electrical component. The lengths of the first substrate lead wire 74a and the second substrate lead wire 74b can be shortened. Moreover, when the first insertion hole 62 is provided on one side in the width direction of the electrical component 71 and the second insertion hole 63 is provided on the other side in the width direction of the electrical component 71, the first board lead wire 74a and the second insertion hole 63 are provided on the other side in the width direction of the electrical component 71. One of the board lead wires 74b becomes less susceptible to the influence of noise generated from the other, and malfunctions can be suppressed.

In this embodiment, when the board storage part 60 is provided on the outer box back surface 3e so that the lower end of the storage part bottom surface 61 of the board storage part 60 is located above the lower end of the inner box inclined surface 4e2, Even if the angle of inclination of the inner box inclined surface 4e2 with respect to the direction is set small, it is possible to secure the space necessary for the substrate storage section 60 in the front and rear direction. Therefore, the back surface of the upper storage chamber 6c can be gently sloped to suppress visual discomfort, and the aesthetic appearance of the inside of the upper storage chamber 6c can be improved.

In this embodiment, when the angle θ1 of the board mounting surface 61a with respect to the vertical direction is smaller than the angle θ2 of the inner box inclined surface 4e2 with respect to the vertical direction, the angle of the control board 70 with respect to the vertical direction can be made small. In addition, it is possible to increase the distance from the inner box back surface 4e to the bottom surface 61 of the storage section on the upper side of the board storage section 60, and it is possible to increase the thickness of the insulation space 5 around electrical components 71 such as reactors that tend to generate heat. .

In the present embodiment, when the component mounting surface 61b extending upward from the board mounting surface 61a is located between a pair of handle portions 35 provided at the upper end of the back surface of the refrigerator main body with an interval in the width direction, the refrigerator main body 2 It is possible to effectively utilize the space between the handle portion 35 at the upper end of the back surface.

(9) Modification Example Modification examples of the above-described embodiment will be described.

In the above-described embodiment, the case where the air outlet 18b and the air outlet 18c are provided at the center of the width direction of the rear wall plate 41 has been described, but the present invention is not limited to this, and from the center of the width direction of the rear wall plate 41. The widthwise center portions of the air outlet 18b and the air outlet 18c may be provided at shifted positions.

Further, in the above-described embodiment, the step portion 4g forming the connecting portion 4f extends rearward from the curved surface 4g1 connected to the rear end of the front extension surfaces 4a, 4b, and 4c, and from the rear end of the curved surface 4g1. Although the present invention is not limited to this, the stepped portion 4g may include only the curved surface 4g1, and the concave portion 4h may be connected to the rear end of the curved surface 4g1.

Further, in the above-described embodiment, a case has been described in which the peripheral edge of the rear wall plate 41 overlaps with the stepped portion 4g of the inner box 4 in the out-of-plane direction of the rear wall plate 41, but the present invention is not limited to this. The rear wall plate 41 may be arranged so as to overlap the curved surface 4g1 in the out-of-plane direction of the rear wall plate 41.

Further, in the above-described embodiment, a case has been described in which the rear wall plate 41 slopes forward as it goes upwards, but the present invention is not limited to this, and the rear wall plate 41 slopes as it goes upwards as it slopes backwards. The rear wall plate 41 may be inclined as shown in FIG.

1... Refrigerator, 2... Refrigerator body, 3... Outer box, 4... Inner box, 4a... Left side of inner box, 4b... Right side of inner box, 4c... Top of inner box, 4d... Bottom of inner box, 4e... Back of inner box , 4e1...Inner box vertical surface, 4e2...Inner box inclined surface, 4e3...Connection surface, 4f...Connection part, 4g...Step part, 4g1...Curved surface, 4g2...Flat, 4h...Concave formation part, 4h1... Rear extension part , 4h2... Inclined part, 4i... Inner box engaging part, 6... Refrigerating compartment, 6b... Lower refrigerating compartment, 6c... Upper refrigerating compartment, 21... Cooler, 24... Refrigerating side flow path, 24b... First flow path part , 24c...Second channel portion, 35...Handle portion, 36...Refrigerating room temperature sensor, 38...Housing case, 39...Operation panel, 40...Rear wall member, 41...Rear wall plate, 41a...Vertical surface, 41a1... Vertical surface upper part, 41b... Inclined surface, 41c... Connection surface, 41d... Narrow portion, 42... Channel forming member, 42a... Rear end surface, 50... Locking piece, 52a... First protrusion, 52b... Second protrusion strip, 56... through hole, 60... board storage section, 61... storage section bottom surface, 61a... board mounting surface, 61b... component mounting surface, 62... first insertion hole, 63... second insertion hole, 64... lid body, 65... Fixture, 70... Control board, 71... Electrical component, 72... Mounted component, 72a... Tall component, 74a... First board lead wire, 74b... Second board lead wire, 75a... Equipment lead wire, 75b... Equipment lead wire, 75c...Equipment lead wire, 75d...Equipment lead wire

Claims (16)

an inner box having a storage chamber opened to the front; an outer box disposed outside the inner box; and a heat insulator housed in a heat insulating space provided between the inner box and the outer box. a refrigerator body comprising a material;
a cooling device that generates cold air to cool the storage compartment;
a rear wall plate that partitions the back side of the storage room;
In a refrigerator equipped with
The inner box includes an inner box back surface, a front extending surface extending forward from an upper end and left and right side ends of the inner box back surface, and a connecting portion connecting the inner box back surface and the front extending surface,
The connecting portion has a stepped portion having a curved surface that swells rearward toward the inside of the storage chamber, or a surface consisting of the curved surface and a plane extending tangentially from the rear end. Prepare,
The rear wall board is parallel to the front surface of the rear wall board, overlaps the step part in a direction away from the periphery of the rear wall board, and is arranged in the inner box so as to cover a part of the step part from the front. Located in front of the back ,
A flow path is provided between the rear wall plate and the back surface of the inner box, which is narrower in the width direction than the rear wall plate, through which cold air generated by the cooling device flows;
A through hole passing through the rear wall plate is provided on a side of the flow path, and an operation panel of the refrigerator is housed between the through hole and the back surface of the inner box,
The refrigerator includes a housing case that accommodates a connector provided on a lead wire of the operation panel and a connector provided on a lead wire of another electrical component, and the housing case is provided below the operation panel. an inner box having a storage chamber opened to the front; an outer box disposed outside the inner box; and a heat insulator housed in a heat insulating space provided between the inner box and the outer box. a refrigerator body comprising a material;
a cooling device that generates cold air to cool the storage compartment;
a rear wall plate that partitions the back side of the storage room;
In a refrigerator equipped with
The inner box includes an inner box back surface, a front extending surface extending forward from an upper end and left and right side ends of the inner box back surface, and a connecting portion connecting the inner box back surface and the front extending surface,
The connecting portion has a stepped portion having a curved surface that swells rearward toward the inside of the storage chamber, or a surface consisting of the curved surface and a plane extending tangentially from the rear end. Prepare,
The rear wall board is parallel to the front surface of the rear wall board, overlaps the step part in a direction away from the periphery of the rear wall board, and is arranged in the inner box so as to cover a part of the step part from the front. Located in front of the back,
In the refrigerator, the rear wall plate includes an engaging part that engages with the connecting part on a rear peripheral edge part. an inner box that is provided with a storage chamber that opens to the front; an outer box that is placed outside the inner box; and a heat insulator that is housed in a heat insulating space that is provided between the inner box and the outer box. a refrigerator body comprising a material;
a cooling device that generates cold air to cool the storage compartment;
a rear wall plate that partitions the back side of the storage room;
In a refrigerator equipped with
The inner box includes an inner box back surface, a front extending surface extending forward from an upper end and left and right side ends of the inner box back surface, and a connecting portion connecting the inner box back surface and the front extending surface,
The connecting portion has a stepped portion having a curved surface that swells rearward toward the inside of the storage chamber, or a surface consisting of the curved surface and a plane extending tangentially from the rear end. Prepare,
The rear wall board is parallel to the front surface of the rear wall board, overlaps the step part in a direction away from the periphery of the rear wall board, and is arranged in the inner box so as to cover a part of the step part from the front. placed in front of the back
The refrigerator includes a protrusion that projects rearward from a back surface of the rear wall plate, and the thickness of the protrusion is smaller than the thickness of the rear wall plate. 4. The refrigerator according to claim 1, wherein the front surface of the rear wall plate is flat in the width direction of the storage compartment. 4. The refrigerator according to claim 1 , wherein the front surface of the rear wall plate is a flat surface or a surface whose inclination with respect to the vertical direction increases as it goes upward. The front surface of the rear wall plate includes a surface in which a plurality of planes having different inclinations in the vertical direction are arranged and connected vertically such that the inclination increases as you go upward;
The refrigerator according to claim 5 , wherein the uppermost plane among the plurality of planes is long in the vertical direction. A flow path is provided between the rear wall plate and the back surface of the inner box, which is narrower in the width direction than the rear wall plate, through which cold air generated by the cooling device flows;
4. The refrigerator according to claim 2, further comprising a through hole passing through the rear wall plate on a side of the flow path, and an operation panel of the refrigerator being housed between the through hole and the back surface of the inner box. The flow path includes a first flow path portion whose widthwise center is disposed closer to one side in the width direction than the widthwise center of the storage chamber, and the through hole is provided on the other side of the first flow path portion in the width direction. The refrigerator according to claim 1 or 7 , wherein: The flow path includes a second flow path portion connected to the first flow path portion,
9. The refrigerator according to claim 8 , wherein the widthwise center of the second flow path portion is arranged closer to the widthwise center of the storage chamber than the widthwise center of the first flow path portion. Claim 7 , further comprising a housing case that accommodates a connector provided on a lead wire of the operation panel and a connector provided on a lead wire of another electrical component, the housing case being provided below the operation panel. Refrigerator as described in. The refrigerator according to claim 1 or 10, wherein a pull-out container is provided in front of the housing case. The housing case is provided on a side of the flow path,
The refrigerator according to claim 1 or 10 , wherein a lead wire of the operation panel is provided along an edge of the flow path. The rear wall plate includes an air outlet communicating with the flow path,
The refrigerator according to claim 1 or 7, wherein the air outlet is provided at a central portion in the width direction of the rear wall plate. The rear wall panel includes an air outlet communicating with the flow path,
8. The refrigerator according to claim 1, wherein the air outlet is provided at a position shifted from a center portion in a width direction of the rear wall panel. The refrigerator according to claim 1 , wherein the rear wall plate includes an engaging part that engages with the connecting part on a rear peripheral edge part. The refrigerator according to claim 1 , further comprising a protrusion projecting rearward from a back surface of the rear wall board, and wherein the thickness of the protrusion is smaller than the thickness of the rear wall board.

Images