JP2845772B2 - refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for forcibly cooling equipment constituting a refrigeration cycle with a blower.

[0002]

2. Description of the Related Art In recent years, equipment such as a condenser and a compressor constituting a refrigeration cycle has been forcibly cooled by a blower with the increase in size of a refrigerator. It is designed to be installed in a machine room formed on the lower rear side (for example, Japanese Patent Application Laid-Open No.
No. 28).

FIG. 1 shows an example of a conventional refrigerator.
1 and FIG. 12 and FIG.

[0004] 101 is a refrigerator main body, 102 is a machine room partitioned at a lower rear portion of the refrigerator main body 101, 103 is an outer box bottom plate, 104 is a mounting plate on which a condenser 105, a blower 106 and a compressor 107 are arranged. is there.

[0005] 108 is a front air inlet provided on the mounting plate 104, 109 is a machine room cover provided with a rear air inlet 110 and an air outlet 111, and 112 is a machine room 102.
A partition plate that bisects the inside.

Reference numeral 113 denotes a fan, 114 denotes an evaporating dish which is disposed immediately above the compressor 107 and receives defrost water, and 115 denotes a floor which is engaged with a contact portion 116 between the mounting plate 104 and the outer box bottom plate 103 to provide a floor. It is a shielding plate hanging down on the surface 117.

Reference numeral 118 denotes an opening of the shielding plate 115, and 119 denotes a reinforcing member 12 at a panel front portion 120 at a lower front portion of the refrigerator.
A shielding plate suspended by a floor surface 117
Reference numeral 22 denotes an opening of the shielding plate 123.

[0008] With the above-described configuration, the machine room 1 is separated from the front air intake 108 and the rear air intake 110.
02 taken in the condenser 105 and the blower 1
06, and passes through the compressor 107 in this order, and is discharged from the air discharge port 111 to the outside.

Therefore, the flow of air from the blower 106 is made unidirectional, so that the condenser 105 and the compressor 107
And the shielding plate 115 and the shielding plate 123 provide a sound insulation effect in front of the refrigerator.

[0010]

The conventional refrigerator, when installed in a kitchen, may have the following problems. The problem will be described with reference to FIGS.

When the refrigerator is surrounded by a back wall 124 and a side wall 125 such as furniture such as a wall, a cupboard, a sink, or the like, or is incorporated in a system kitchen surrounding the back, both sides, and the ceiling of a recently popular refrigerator. The machine room 102 from the front air intake 108 and the rear air intake 110.
Fresh air introduced into the inside is discharged as warm air from the air outlet 111 by heat exchange with the condenser 105 and the compressor 107.

Then, the warm air discharged from the air discharge port 111 passes through the gap between the mounting plate 104 and the floor 117,
The front air intake 108 sometimes re-entered the interior of the machine room 102.

The warm air discharged from the air outlet 111 passes through the machine room cover 109 and the gap between the rear surface and the rear wall 124 of the refrigerator body 101, and the rear air inlet 1
In some cases, the fluid may flow again into the machine room 102 from 10.

As shown in FIGS. 16 and 17,
If there is a gap between the side of the refrigerator body 101 and the side wall 125 adjacent to the air outlet 111, the air outlet 11
1 is discharged from the gap between the side surface of the refrigerator main body 101 and the side wall 125, the outer case bottom plate 103 and the floor surface 117.
Machine room 1 through the front air intake 108
02 again.

As described above, the condenser 10 is provided by the short circuit of the air convection in which the warm air re-enters the machine room 102.
5 deteriorates the heat exchange efficiency.

The present invention solves the above-mentioned problem. After heat is exchanged by a compressor and a condenser arranged in a machine room, warm air discharged from an air outlet is discharged to a front air intake. It is an object of the present invention to provide a refrigerator that prevents a short circuit of air convection re-introduced into a machine room through an inlet and a rear air inlet, and increases the heat exchange efficiency of a condenser.

[0017]

According to the present invention, there is provided a refrigerator according to the present invention, comprising: a machine room defined by a bottom plate and a mounting plate at a lower portion of a refrigerator body; A condenser, a compressor, an evaporating dish, and a machine room cover attached to the back of the machine room, a front air inlet formed at the front of the machine room, and a machine room cover. A rear air inlet and an air outlet provided, a blower having a partition plate with a bell mouth that bisects the machine room into left and right, a shield plate hanging down from the mounting plate to the floor surface and provided in the width direction, A member hanging down from the mounting plate to the floor surface and provided in the front-rear direction, and forming a wind path from the front air inlet and the rear air inlet to the air outlet through the machine room. Abutting the shielding plate and the member, Blocking the flow of warm air from the air outlet is to prevent re-flow of warm air into the machine room.

Further, a convex flange portion hanging down from the floor is provided in an L shape along the mounting plate.

Further, a flange portion substantially perpendicular to each back surface is continuously formed on the back surface of the cover of the machine room and the back surface of the refrigerator main body, and a rear air inlet provided on the cover of the machine room and the air. It is provided between the outlets along the vertical direction of the refrigerator main body.

Further, a member hanging down from the floor is provided along the side surface of the refrigerator body on the side of the air outlet.

[0021]

According to the present invention, as described above, the refrigerator body extends from the end of the mounting plate on the air discharge port side to the end of the front air intake on the mounting plate side of the contact portion between the mounting plate and the outer case bottom plate. Provide a shield plate that hangs down on the floor surface on the mounting plate in the width direction, and a member that hangs down on the floor surface from the front and rear direction of the mounting plate on the windward side from the air discharge port on the mounting plate, and contacts the shield plate. Then, after heat is exchanged by the compressor and the condenser arranged in the machine room, the warm air discharged from the air discharge port passes through the gap between the mounting plate and the floor surface, and flows from the front air intake to the machine. Prevents re-flow into the room and increases the heat exchange efficiency of the condenser.

Also, by providing a convex flange portion hanging down on the floor surface at the bottom of the mounting plate in an L-shape along the mounting plate, the compressor and the condenser arranged in the machine room can be used. After the heat exchange, it prevents the warm air exhausted from the air exhaust port from passing through the gap between the mounting plate and the floor and re-entering the machine room from the front air intake, and the heat exchange of the condenser By increasing the efficiency and forming the L-shaped flange portion on the mounting plate, the rigidity of the mounting plate is increased, and the effect of reducing the vibration of the mounting plate and improving the durability is also obtained.

Further, a flange portion substantially perpendicular to each back surface is continuously formed on the rear surface of the cover of the machine room and the rear surface of the refrigerator main body, so that the rear air inlet and the air outlet of the rear cover on the machine room cover are formed. In the meantime, by providing along the vertical direction of the refrigerator body, after the heat is exchanged with the compressor and the condenser arranged in the machine room, the warm air discharged from the air outlet is covered by the cover and the machine room. While preventing the air from passing through the gap between the back and back walls of the refrigerator body and flowing back into the machine room from the rear air intake, the heat exchange efficiency of the condenser is increased,
By forming the flange portion, the rigidity of the cover of the machine room and the back surface of the refrigerator is increased, and the effects of reducing vibration and improving durability are also obtained.

Further, by providing a member hanging down on the floor along the side surface of the refrigerator body on the side of the air outlet, there is a gap between the side surface of the refrigerator body and the side wall close to the air outlet. Prevents the warm air discharged from the air outlet from passing through the gap between the side and side walls of the refrigerator main body and the gap between the outer case bottom plate and the floor surface, and from re-entering the machine room from the front air inlet, and condensing. The heat exchange efficiency of the machine can be increased.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the refrigerator according to the present invention will be described below with reference to FIGS. FIG.
Is a plan view showing a machine room in the refrigerator according to the first embodiment of the present invention, FIG. 2 is a transverse sectional view of the machine room, FIG. 3 is a longitudinal sectional view of the machine room, and FIG. It is a part perspective view.

In the figure, 1 is a refrigerator main body, 2 is a machine room, which is composed of an outer box bottom plate 3 having a slope 3a, and a mounting plate 7 on which a condenser 4, a blower 5 and a compressor 6 are mounted. I have.

Reference numeral 8 denotes a machine room cover, which is provided with a plurality of slit-shaped rear air inlets 8a and a plurality of slit-shaped air outlets 8b. Reference numeral 9 denotes a front air inlet provided in the outer case bottom plate 3 of the refrigerator body 1, and a slit cover 10 for preventing a mouse from entering is provided.

Numeral 11 denotes a partition plate having a bell mouth 12, 1
Reference numeral 3 denotes an evaporating dish disposed directly above the compressor 6 to receive defrost water, 14 denotes a fan of the blower 5, and 15 denotes air on the mounting plate 7 side of a contact portion between the mounting plate 7 and the outer box bottom plate 3. A shield plate that hangs down on the floor 16 in the width direction of the refrigerator main body 1 from the end of the mounting plate 7 on the side of the outlet 8b to the end of the front air inlet 9, and 27 is a wind from the air outlet 8b to the mounting plate 7. A member that hangs down on the floor 16 from the front-rear direction of the mounting plate 7 on the upper side, and contacts the shielding plate 15. 16 is a floor surface, 17 is a rear wall, and 18 is both right and left wall surfaces.

Reference numeral 23 denotes an inner box constituting the refrigerator main body 1, 24 denotes a heat insulating material interposed between the inner box 23 and the outer box 25, and 26 denotes a door. Arrows in the drawing indicate the direction of convection of air, and particularly dotted arrows indicate the direction of convection of warm air discharged from the air outlet 8b.

With respect to the refrigerator configured as described above,
The operation will be described. Fresh air taken into the machine room 2 by the blower 5 from the front air inlet 9 and the rear air inlet 8a passes through the blower 5, the condenser 4, and the compressor 6 in this order. The air is heated by heat exchange with the air outlet 6 and is discharged outside as warm air from the air outlet 8b.

The warm air discharged from the air discharge port 8b passes through the gap between the mounting plate 7 and the floor 16 and passes through the front air intake 9
From the end of the mounting plate 7 on the side of the air discharge port 8b to the mounting plate 7 side of the contact portion between the mounting plate 7 and the outer box bottom plate 3 from the front air inlet. A shield plate 15 hanging down to the floor 16 in the width direction of the refrigerator body 1 up to the end 9 and a mounting plate 7 hanging down to the floor 16 from the front-rear direction of the mounting plate 7 on the windward side from the air outlet 8b. In addition, the shielding plate 15 and the corresponding member 27 block the flow of the warm air to prevent the warm air from re-introducing into the machine room 2 and increase the heat exchange efficiency of the condenser 4.

As described above, in the refrigerator of the present embodiment, after the heat exchange, the warm air discharged out of the machine room 2 passes through the gap between the mounting plate 7 and the floor 16 and enters the machine room 2. The heat exchange efficiency of the condenser 4 can be increased by preventing a short circuit of air convection such as re-inflow.

Hereinafter, a second embodiment of the refrigerator according to the present invention will be described with reference to FIGS.

The front air inlet 9 and the rear air inlet 8a
The fresh air introduced into the machine room 2 by the blower 5 is heated by heat exchange with the condenser 4 and the compressor 5 while passing through the blower 5, the condenser 4 and the compressor 6 in this order,
The air is discharged from the air discharge port 8b as warm air.

The warm air discharged from the air discharge port 8b passes through the gap between the mounting plate 7 and the floor 16 and passes through the front air inlet 9
At the bottom of the mounting plate 7, a convex flange portion 19 provided in an L-shape along the mounting plate blocks the flow of warm air and 2 can be prevented from re-introducing warm air, and the heat exchange efficiency of the condenser 4 can be increased.

Further, by forming the flange portion 19 on the mounting plate 7, the rigidity of the mounting plate 7 is increased, and the effect of reducing the vibration of the mounting plate 7 and improving the durability is also obtained.

As described above, in the refrigerator of this embodiment, after the heat exchange, the warm air discharged out of the machine room 2 passes through the gap between the mounting plate 7 and the floor 16 and re-enters the machine room 2. The heat exchange efficiency of the condenser 4 can be improved by preventing the short circuit of the air convection such as inflow.

Further, since the mounting plate 7 forms the flange 19, the rigidity of the mounting plate 7 is increased, and the effect of reducing the vibration of the mounting plate 7 and improving the durability can be obtained.

Hereinafter, a third embodiment of the refrigerator according to the present invention will be described with reference to FIGS. 7 and 8.

The front air inlet 9 and the rear air inlet 8a
The fresh air taken into the machine room 2 by the blower 5 is heated by heat exchange with the condenser 4 and the compressor 5 while passing through the blower 5, the condenser 4 and the compressor 6 in this order,
The air is discharged from the air discharge port 8b as warm air.

The warm air discharged from the air discharge port 8b passes through the gap between the mounting plate 7 and the floor 16 and passes through the front air intake 9
From the end of the mounting plate 7 on the side of the air discharge port 8b to the mounting plate 7 side of the contact portion between the mounting plate 7 and the outer box bottom plate 3 from the front air inlet. A shield plate 15 hanging down to the floor 16 in the width direction of the refrigerator body 1 up to the end 9 and a mounting plate 7 hanging down to the floor 16 from the front-rear direction of the mounting plate 7 on the windward side from the air outlet 8b. In addition, the shielding plate 15 and the corresponding member 27 block the flow of the warm air to prevent the re-inflow of the warm air into the machine room 2 and increase the heat exchange efficiency of the condenser 4.

The warm air discharged from the air discharge port 8b passes through the machine room cover 8 and the gap between the rear surface and the rear wall 17 of the refrigerator main body 1 and returns to the machine room 2 from the rear air inlet 8a. Although it is going to flow in, the machine room cover 8 and the rear of the refrigerator body 1 are continuously arranged substantially vertically to the respective rear surfaces along the vertical direction of the refrigerator body 1.
A flange 21 provided between the upper rear air inlet 8a and the air outlet 8b cuts off the flow of warm air, and
The re-inflow of warm air into the inside can be prevented, and the heat exchange efficiency of the condenser 4 can be further increased.

Further, by forming a flange on the back of the machine room cover 8 and the refrigerator main body 1, the rigidity of the cover of the machine room and the back of the refrigerator is increased, and effects of reducing vibration and improving durability can be obtained. .

As described above, in the refrigerator of this embodiment, after the heat exchange, the warm air discharged out of the machine room 2 passes through the gap between the mounting plate 7 and the floor 16 and re-enters the machine room 2. The heat exchange efficiency of the condenser 4 can be improved by preventing the short circuit of the air convection such as inflow.

Further, the warm air discharged outside the machine room 2 passes through the machine room cover 8 and the gap between the refrigerator body 1 and the rear wall 17 and flows back into the machine room 2. The heat exchange efficiency of the condenser 4 can be further improved by preventing the torsion kit.

Further, by forming a flange on the back of the machine room cover 8 and the refrigerator main body 1, the rigidity of the cover of the machine room and the back of the refrigerator is increased, and the effects of reducing vibration and improving durability can be obtained. .

Hereinafter, a fourth embodiment of the refrigerator according to the present invention will be described with reference to FIGS. 9 and 10.

Front air inlet 9 and rear air inlet 8a
The fresh air taken into the machine room 2 by the blower 5 is heated by heat exchange with the condenser 4 and the compressor 5 while passing through the blower 5, the condenser 4 and the compressor 6 in this order,
The air is discharged from the air discharge port 8b as warm air.

The warm air discharged from the air discharge port 8b passes through the gap between the mounting plate 7 and the floor 16 and passes through the front air intake 9
From the end of the mounting plate 7 on the side of the air discharge port 8b to the mounting plate 7 side of the contact portion between the mounting plate 7 and the outer box bottom plate 3 from the front air inlet. A shield plate 15 hanging down to the floor 16 in the width direction of the refrigerator body 1 up to the end 9 and a mounting plate 7 hanging down to the floor 16 from the front-rear direction of the mounting plate 7 on the windward side from the air outlet 8b. In addition, the shielding plate 15 and the corresponding member 27 block the flow of the warm air to prevent the re-inflow of the warm air into the machine room 2 and increase the heat exchange efficiency of the condenser 4.

The side of the refrigerator body 1 and the air outlet 8
b, there is a gap between the side wall 18 and the air outlet 8b, the warm air exhausted from the air outlet 8b, the gap between the side wall and the side wall 18 of the refrigerator body 1 and the outer box bottom plate 3 and the floor 16 After passing through the gap and trying to re-enter the machine room 2 from the front air inlet 9, the member 22 provided along the side surface of the refrigerator body 1 on the side of the air outlet 8 b and hanging down on the floor 16 is heated. The flow is cut off to prevent the re-inflow of warm air into the machine room 2 and the heat exchange efficiency of the condenser 4 can be increased.

As described above, in the refrigerator of this embodiment, after the heat exchange, the warm air discharged out of the machine room 2 passes through the gap between the mounting plate 7 and the floor 16 and is re-entered in the machine room 2. The heat exchange efficiency of the condenser 4 can be improved by preventing the short circuit of the air convection such as inflow.

The warm air discharged to the outside of the machine room 2 passes through the gap between the side surface of the refrigerator main body 1 and the side wall 18 and the gap between the outer box bottom plate 3 and the floor surface 16 and re-enters the machine room 2. The heat exchange efficiency of the condenser 4 can be improved by preventing the short circuit of the air convection such as inflow.

[0053]

As described above, according to the refrigerator of the present invention, a front air inlet is provided from the end of the mounting plate on the side of the air discharge port to the mounting plate at the contact portion between the mounting plate and the outer box bottom plate. A shield plate hanging down on the floor in the width direction of the refrigerator body up to the end of the refrigerator plate, and a shield plate hanging down on the floor from the front-rear direction of the mounting plate on the mounting plate on the windward side from the air discharge port. With the provision of the members, the heat is exchanged by the compressor and the condenser arranged in the machine room, and then the warm air discharged from the air discharge port passes through the gap between the mounting plate and the floor surface. As a result, it is possible to prevent the air from re-introducing into the machine room from the front air intake, and to increase the heat exchange efficiency of the condenser.

Further, by providing a convex flange hanging down on the floor surface in an L-shape along the mounting plate at the bottom of the mounting plate, heat can be generated by the compressor and the condenser arranged in the machine room. After the replacement, it prevents the warm air discharged from the air discharge port from passing through the gap between the mounting plate and the floor and re-entering the machine room from the front air intake, and the heat exchange efficiency of the condenser Can be increased.

Further, by forming the convex flange portion on the mounting plate, the rigidity of the mounting plate is increased, and the effect of reducing the vibration of the mounting plate and improving the durability is also obtained.

Further, on the back of the cover of the machine room and the back of the refrigerator main body, a flange portion substantially perpendicular to each back surface is continuously formed, and a rear air inlet provided on the cover of the machine room and the air are provided. Between the outlets, along the vertical direction of the refrigerator main body, after heat exchange with the compressor and the condenser arranged in the machine room, the warm air discharged from the air outlet is discharged from the machine room. The heat exchange efficiency of the condenser can be improved by preventing the air from passing through the gap between the rear surface of the cover and the refrigerator main body and the rear wall and flowing into the machine room again from the rear air intake.

Moreover, the rigidity of the cover of the machine room and the back of the refrigerator is increased by the formation of the flange portion, and the effects of reducing vibration and improving durability can be obtained.

Further, by providing a member hanging down on the floor along the side surface of the refrigerator body on the side of the air outlet, there is a gap between the side surface of the refrigerator body and the side wall close to the air outlet. Prevents the warm air discharged from the air outlet from passing through the gap between the side and side walls of the refrigerator main body and the gap between the outer case bottom plate and the floor surface, and from re-entering the machine room from the front air inlet, and condensing. The heat exchange efficiency of the machine can be increased.

[Brief description of the drawings]

FIG. 1 is a plan view of a machine room of a refrigerator according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a machine room of the refrigerator.

FIG. 3 is a longitudinal sectional view of a machine room of the refrigerator.

FIG. 4 is a perspective view of a main part of a machine room of the refrigerator.

FIG. 5 is a plan view of a machine room of a refrigerator according to a second embodiment of the present invention.

FIG. 6 is a perspective view of a machine room of the refrigerator.

FIG. 7 is a plan view of a machine room of a refrigerator according to a third embodiment of the present invention.

FIG. 8 is a longitudinal sectional view of a machine room of the refrigerator.

FIG. 9 is a plan view of a machine room of a refrigerator according to a fifth embodiment of the present invention.

FIG. 10 is a longitudinal sectional view of a machine room of the refrigerator.

FIG. 11 is a plan view of a machine room of a refrigerator in a conventional example.

FIG. 12 is a longitudinal sectional view of a machine room of the refrigerator.

FIG. 13 is a perspective view of a machine room of the refrigerator.

FIG. 14 is a plan view illustrating an air path in a machine room of the refrigerator.

FIG. 15 is a perspective view illustrating an air path in a machine room of the refrigerator.

FIG. 16 is a plan view illustrating an air passage in a machine room of the refrigerator.

FIG. 17 is a longitudinal sectional view illustrating an air passage in a machine room of the refrigerator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2 Machine room 3 Outer box bottom plate 3a Slope part 4 Condenser 5 Blower 6 Compressor 7 Placement plate 8 Machine room cover 8a Back air inlet 8b Air outlet 9 Front air inlet 11 Partition plate 12 Bell mouth 13 Evaporating dish 15 Shielding plate 16 Floor surface 19 Flange part 21 Flange part 22 Member 27 Member

──────────────────────────────────────────────────続 き Continued on front page (72) Inventor Haruyoshi Yamamoto 4-5-2-5 Takaidahondori, Higashiosaka-shi, Osaka Matsushita Refrigeration Machinery Co., Ltd. No. 2-5 Matsushita Refrigerating Machinery Co., Ltd. (72) Inventor Shinichi Kanaoka 4-2-2-5 Matsushita Refrigerating Machinery Co., Ltd. 4-72-5 Matsushita Refrigerating Machinery Co., Ltd. (72) Inventor Yoshitaka Kubota Takaidamoto, Higashi Osaka-shi, Osaka No. 4, 2-5, Matsushita Refrigerator Co., Ltd. (56) References JP-A-5-203324 (JP, A) JP-A-4-186080 (JP, A) JP-A-5-19885 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) F25D 19/00

Claims (4)

(57) [Claims] A machine room defined by an outer box bottom plate and a mounting plate at a lower portion of the refrigerator body; a condenser, a compressor, and an evaporating plate installed on the mounting plate in the machine room; A machine room cover attached to the rear of the machine room, a front air intake formed in the front of the machine room, a rear air intake and an air exhaust provided in the machine room cover, A blower having a partition plate with a bell mouth that divides into two, a shielding plate that hangs from the mounting plate to the floor and is provided in the width direction, and a member that hangs from the mounting plate to the floor and is provided in the front-rear direction. A refrigerator having an air passage extending from the front air inlet and the rear air inlet to the air outlet through the machine room, and bringing the shielding plate into contact with the member; To shut off the flow of warm air from Refrigerator to prevent re-inflow. 2. The refrigerator according to claim 1, wherein a convex flange portion hanging from the floor surface is provided in an L-shape along the mounting plate at the bottom of the mounting plate. 3. A rear air inlet provided on the cover of the machine room, and a flange portion substantially perpendicular to each back surface is continuously formed on the back of the cover of the machine room and the back of the refrigerator body. 2. The refrigerator according to claim 1, wherein the refrigerator is provided between the outlets along the vertical direction of the refrigerator housing body. 4. The refrigerator according to claim 1, wherein a member hanging down from the floor is provided along a side surface of the refrigerator body on the side of the air outlet.