JPH079338B2 - refrigerator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a refrigerator constituted by polymerizing a plurality of heat insulating boxes.

(B) Conventional Technology In a conventional polymerization refrigerator of this type, as shown in, for example, Japanese Utility Model Laid-Open No. 56-54778, a protrusion is formed on the upper surface of the lower heat insulating box, and a recess is formed on the lower surface of the upper heat insulating box. Is formed, and both of the heat insulating boxes are superposed by fitting the recess and the projection.
Further, the lead wires extending from the electric components inside the both heat insulating boxes are drawn out from the upper surface or the lower surface, respectively, and are connected by a connector.

(C) Problems to be Solved by the Invention With such a configuration, since the upper and lower heat-insulating boxes are simply connected by fitting, there is a risk that they may be displaced due to vibration due to an earthquake or impact at the time of opening and closing the door. There is. Further, the lead wire has to be connected in a state where the upper heat insulating box is floated upward, which is poor in workability.

(D) Means for Solving the Problems The present invention is to polymerize an outer box and an inner box having front openings and an upper insulating box and a lower insulating box made of a heat insulating material filled between the inner and outer boxes, A lead wire having a connecting portion at the tip is led out from the back surface of the upper and lower heat insulating box bodies, a cooler is arranged on the ceiling part of the lower heat insulating box body, and the cool air cooled by this cooler is placed on the upper and lower heat insulating box bodies. In a refrigerator adapted to circulate through the body, a recess formed at the front of the bottom of the inner box of the upper heat-insulating box and formed in contact with the outer box, and the upper and lower heat-insulating box bodies attached to this recess A coupling member that couples the front part of the above, a cover that covers the recess, and a fixture that joins the backs of the upper and lower heat-insulating boxes, and the space formed by the fixture and the upper and lower heat-insulating boxes. The connection portion of the lead wire is housed inside.

(E) Action According to the present invention, the upper and lower heat insulation boxes are firmly connected and fixed to the front part with the connecting member and the back part with the fixing tool, and the lead wire and the connecting part are securely protected by the fixing tool. It Especially, since the front parts of the upper and lower insulation boxes are connected and fixed by the connecting member, the front side of the handle cormorant insulation box is located at the back of both insulation boxes when the door of the upper insulation box is opened or closed or when there is an unexpected impact. It does not float around the fixing tool as a fulcrum, and the lead wire is not cut due to excessive tension applied to the lead wire. Moreover, since the connecting member for preventing the floating of the upper insulating box body is provided inside the upper insulating box body so as not to be exposed to the front side of the refrigerator, the external appearance of the refrigerator is not impaired and the connecting member can be attached. Since the recess is covered with a cover, the dew that adheres to the inner box of the upper insulation box does not enter the recess by this cover, and the dew generated in the recess is transmitted to the connecting member and the heat insulation material of the upper insulation box. It does not enter the inside, and even if this connecting member penetrates the inner box of the lower heat insulating box, it is hidden by the cooler, so the connecting member is not visible from the front opening of the lower heat insulating box.

(F) Example Next, an example will be described with reference to the drawings. 1 is a perspective view of a refrigerator (1) to which the present application is applied, FIG. 2 is a front view of the refrigerator (1) with each door removed, and FIG. 3 is a line AA of FIG. 2 including the door. Sectional drawing and FIG. 4 respectively show sectional views taken along the line BB. The refrigerator (1) is composed of a lower heat-insulating box body (2) opening forward and an upper heat-insulating box body (3) superposed on the upper surface of the lower heat-insulating box body (2) and opened forward. . The lower heat-insulating box (2) is a heat insulating material (6) such as polyurethane foam in the space between the outer box (4) made of steel plate and the inner box (5) installed in the outer box (4) with a space. Is filled by the on-site foaming method. The inner box (5) is formed by vacuum forming of a synthetic resin plate, and the partition wall portion (5A) that divides the inside into upper and lower parts is also integrally formed, and the inside of the partition wall portion (5A) is also similarly insulated. The material (6) is filled. A heat insulating partition member (7) is provided at intervals above and below the partition wall portion (5A). A refrigerating chamber (8) is located above the partition member (7) and a partition wall portion (7) is located below the partition member (7). The space above 5A) is the compartment (9), and the space below the partition wall (5A) is the freezer (10).

In the deep part of the freezer compartment (10), a partition plate (1
1) is vertically installed with a space from the back surface of the inner box (5), and a cooler (13) for a freezing room is vertically installed in a cool air passage (12) formed behind it. The cool air cooled by the freezer compartment cooler (13) is provided above the freezer compartment blower (14).
Is sucked into the freezing chamber (10) through a discharge port (15) formed in the partition plate (11) in front of the cold air passage (12) through a suction port (16) formed in the lower part of the partition plate (11). )
Return to. By circulating this cold air, the inside of the freezer compartment (10) is cooled to a freezing temperature such as -20 ° C. , (17) are heat-insulating doors that close the linear opening of the freezer compartment (10), and the basket (19) is mounted on the frame body (18) attached to the inner surface of the frame body (18). The left and right sides are slidably supported by rails (not shown) formed on the left and right side walls of the inner box (5), so that the door (17) is attached to the lower heat-insulating box body (2) so as to be freely drawn out. The basket (19) can be placed in and out of the freezer compartment (10) in conjunction with the opening and closing of. On the upper part of the refrigerating compartment (8), there is a cooler cover plate (2
1) is installed at a distance from the top surface of the refrigerating compartment (8), and a cooler (2) for the refrigerating compartment is provided in a cool air passage (22) formed above this.
3) is provided. Behind the refrigerating room cooler (23), there is provided a refrigerating room blower (25) covered by a heat insulating cover (24) having a blower room (24A) communicating with the cool air passage (22) inside. Further, the heat insulating cover (24) has a duct (26) whose lower end opens to the refrigerating chamber (8) and whose upper end communicates with the cool air passageway (22) through the blower chamber (24A). A part of the cool air is sucked by the refrigerating room cooler (23) by the refrigerating room blower (25), and the duct (26).
It is further discharged into the refrigerating chamber (8) and returned to the cool air passageway (22) through the suction port (27) formed at the front end of the cooler cover plate (21). Reference numerals (29) and (30) denote double-door type doors that are rotatably attached to the opening edge of the refrigerating compartment (8) and have a plurality of pockets provided on the inner surface. Inside the non-pivotal side end of the door (30), when the door (30) is closed, it is rotated by guide members (31) (31) provided above and below the opening edge of the refrigerating chamber (8). A partition body (34) forming an abutting surface of the gaskets (32) (33) on the inner peripheral surfaces of the doors (29) (30) is rotatably attached about a vertical axis. (28) is an article placing shelf.

Reference numeral (35) is a heat-insulating door that closes the front opening of the compartment (9), and a container (37) having an upper surface opening in the frame body (36) attached to the inner surface.
The door (35) is mounted on and supported by a rail (not shown) formed on the left and right side walls of the inner box (5) so that the left and right sides of the frame (36) are slidably supported. (2)
The container (37) can be inserted into and taken out of the compartment (9) by interlocking with the opening and closing of the door (35). A projecting wall portion (5B) protruding toward the refrigerating chamber (8) is formed at a portion of the inner box (5) located on the rear surface of the refrigerating chamber (8) so as to extend vertically. A duct member (38) is embedded in the heat insulating material (6) inside 5B so as to extend vertically. Inside the duct member (38), the upper end has an insulating cover (2
4) A duct (39) communicating with the cool air passageway (22) through the blower chamber (24A) in the inside and having the lower end opened to the rear surface of the compartment (9) at the discharge port (39A) is formed. The discharge port (39A) is opened and closed by a damper thermostat (40), and the damper thermostat (40) is further connected to a cover (42) communicating with a cool air discharge passageway (41) formed in the partition member (7). Covered. The cool air discharge passageway (41) has a plurality of discharge ports (43) opened at the front and center lower surfaces of the partition member (7).
have. Further, at the rear of the partition member (7) and on the side of the cover (42), there is formed a cool air return passageway (44) for connecting the compartment (9) and the refrigerating compartment (8). The blower (25) for the refrigerating room rotates and sucks cool air from the front and blows it out to the side. Some of the cool air discharged from the blower (25) passes through the duct (39) and the discharge port (39A). Through the damper thermostat (40) into the cold air discharge passageway (41), and from the discharge port (43) to the front and center of the container (37) for circulation, and then to the cool air return passageway (44). ) Returns to the rear part of the refrigerating room (8) and returns to the cold air passage (22) from the suction port (27) together with the circulating cold air in the refrigerating room (8). The blower (25) for the refrigerating compartment is repeatedly operated and stopped according to the temperature in the refrigerating compartment (8) to bring the refrigerating compartment (8) to a refrigerating temperature such as + 3 ° C., but the damper thermostat (40) The temperature sensing unit is heated by the heater (45), and the heat generation of the heater (45) is controlled according to the temperature in the compartment (9), so that the interior of the compartment (9) is cooled to 0 ° C to -3 ° C. It can be set to a warm storage temperature or a temperature of + 10 ° C which is suitable for storing vegetables and the like. Here, the ice temperature storage temperature refers to the temperature that is based on the property that the freezing point of food is lower than the freezing point, but is below freezing but just before freezing of the food. Without this, the bacterial growth can be suppressed and the bacteria can be stored for a relatively long period of time, and the deterioration of the flavor due to freezing can be prevented.

The upper heat insulating box (3) is formed by foaming and filling a heat insulating material (49) between a steel plate outer box (47) opening forward and a synthetic resin inner box (48), and is formed on the back surface of the inner box (48). A duct member (50) is embedded in the heat insulating material (49) in the protruding wall (48A), which penetrates the outer boxes (47) and (4) and extends between the upper and lower heat insulating box bodies (3) and (2). . The duct member (50) is connected to the upper and lower sides by stacking the upper and lower heat insulating box bodies (3) and (2), and the upper end is formed inside the inner box (48) to the upper chamber (51) and the discharge port (52A). A duct (52) whose lower end communicates with the cool air passage (22) through the blower chamber (24A). The discharge port (52A) has an upper chamber (5
A damper thermostat (53) for opening and closing the discharge port (52A) by sensing the temperature of 1) is provided, and the damper thermostat (53) is closed by a cover (54). A part of the cold air discharged by the blower (25) for the refrigerator compartment is the duct (52).
Through the damper thermostat (53), and above the discharge chamber (54A) formed on the left and right sides of the cover (54) in the upper chamber (5
After being discharged into the inside of 1), the cold air return passageway (56) (which also penetrates the upper and lower insulating box bodies (3) and (2) to connect the front lower part of the upper chamber (51) and the cold air passageway (22) It is configured by the connection of the above) and returns to the cold air passageway (22). Upper chamber (5
By changing the setting of the damper thermostat (53) in 1), it can be selectively used from the refrigerating temperature such as + 3 ℃ to the temperature suitable for storing wines such as + 15 ℃. In addition, (5
7) is an upper chamber (51) whose upper end is pivotally supported by a hinge (58).
It is a heat insulation door. Furthermore, (59) is the door (57) and (29) (30)
A control box attached to the upper end of the front surface of the lower heat-insulating box (2) that protrudes forward in the space between the right and left sides exposes various switches on the front surface, and has an illumination lamp (60) inside. There is.

A machine room (63) located between the base leg (62) and the bottom surface (4A) of the outer box (4) and opening at least forward is formed in the lower part of the lower heat-insulating box (2). An electric compressor (64) and a condenser (65) which form a refrigerant circuit together with both coolers (13) and (23) are housed and installed in the (63). (66)
(66) is a wheel device for transportation attached to the base leg (62). Reference numeral (68) is a machine room cover that covers the front opening of the machine room (63). On the back surface of the machine room (63) is a step board () that extends substantially horizontally to the top of the machine room (63) along the bottom surface (4A). 69) is attached. The step board (69) and the machine room cover (68) may be integrally formed of synthetic resin or the like. Rollers (70) (70) that slide on the floor surface are attached to the lower ends of both sides of the machine room cover (68), and also the footboard (69).
Are slidably supported by a pair of rollers (71) mounted on the inner surface of the outer case (4) on both sides of the front of the machine room (63). As a result, the machine room cover (68) and the step board (69)
Is slidable back and forth, and when delivering parts to the upper chamber (51), pull the machine room cover (68) forward and the footboard (69) will also come out. Therefore, the work can be performed easily by riding on the step board (69). Also, at this time, the step board (69) can be pulled out in conjunction with the machine room cover (68), so the machine room cover (68) is removed and the step board (69) is removed.
The double labor of pulling out or installing the can be saved. or,
Machine room cover (68) when repairing parts in the machine room (63)
It can be done by removing the step board (69). Furthermore,
(73) is a stopper formed to project from the rear of the step board (69), and (74) and (74) are storage positioning projections formed at a predetermined interval on the front. The step (69) is pulled out and the front is The roller (70) and the rear part are supported by the roller (71) to form a stable step.

Next, FIG. 5 shows a front view of the refrigerating room (8) with the doors (29) (30) and the shelves (28) removed, and FIG. 6 shows a rear perspective view of the door (30), and FIG. Shows a sectional view of the partition body (34) with the doors (29) and (30) closed. Guide member (31)
The (31) are attached to face each other at substantially the center of the upper and lower opening edges of the refrigerating room (8), and have a protrusion (76) at the front and a jetty (77) at the rear. The projection (76) has a front surface that is flat and substantially flush with the opening edge, and a back surface that is a substantially semicircular curved surface (76A). The jetty (77) is continuous with the projection (76) on the left side in FIG. 7, and is further separated from the rear, and the front surface has a larger radius of curvature on the pivot side than on the non- pivot side of the door (30). The curved surface (77A) is such that the curved surface (76A) and (77A)
A guide groove (78) is formed between them. The inner plate (79) of the door (30) is formed with a pair of projecting walls (79A) (79B), and the pocket (80) is supported between the projecting walls (79A) (79B) (also the door (29) The same.). On the outside of the projecting wall (79B) inside the gasket (33A) on the back side of the door (30) that is not pivotally supported, a storage member (81) that is open in the direction of the gasket (33A) and vertically is provided. ) Is installed. The storage member (81) extends vertically with a dimension slightly smaller than the distance between the upper and lower guide members (31) (31), and has a hinge (82) at the open end on the door (30) side, which has a substantially rectangular cross section. The partition body (34) is rotatably attached. The partition body 34) has a length that extends substantially vertically over the opening edge and extends vertically with a dimension slightly shorter than the spacing between the guide grooves (78) of the upper and lower guide members (31) (31), and the front surface is The front plate (83) is attached as a flat surface, and the corners are curved. Further, the upper and lower ends of the partition body (34) project from the storage member (81), and the engaging projections (85) whose front surface is a curved surface are provided in this portion.

When the door (30) is open, the partition body (34) is shown in Figs.
It is stored in the storage member (81) as shown by the alternate long and short dash line in the figure or FIG. If the door (29) is opened in this state, the partition (34) does not exist in the opening of the refrigerating compartment (8), and the entire opening can be used for delivering food, which is extremely practical. Next, when the door (30) is closed, the engaging projection (85) of the partition body (34) enters the guide groove (78) through the door (30) side entrance, and then the jetty (77). ) Engagement protrusion (76) on the curved surface (77A)
Are contacted and guided, the partition body (34) is rotated counterclockwise in FIG. 7, and eventually the engaging projection (85) coincides with the rear surface of the projection (76) at the same time when the door (30) is closed. To do. Partition at this time (3
The front plate (83) of 4) is substantially flush with the opening, and the doors (29) (30)
The gaskets (32A) and (33A) form a close contact surface, whereby the opening is sealed. When the door (30) is opened, the engaging projection (85) of the partition body (34) is rotated in the clockwise direction in FIG. 7 along the curved surface (76A) of the projection (76). It will be stored in the storage member (81). This operation is performed regardless of the door (29).

Next, FIG. 8 shows an important enlarged side sectional view of an overlapping portion of the upper heat insulating box (3) and the lower heat insulating box (2). The control box (59) is formed by bending a metal plate into an inner hollow box shape, and is attached to the front of the outer box (4) between the doors (57), (29) and (30). The control box (59) projects forward from the doors (57) (29) (30), and the illumination lamp (60) housed inside also has doors (57) (29).
It is attached so that at least a part of it protrudes forward from the front surface of (30) and extends left and right. The illumination lamp (60) is composed of a well-known fluorescent lamp. The control box (59) located above and below the lighting (60) has a door (5
7) A plurality of through holes (105) opened vertically by a plurality of cut-and-raised parts (104) over a range in front of (29) (30)
The cut-and-raised parts (104) of the upper surface of the control box (59) are in the upper chamber (51) direction, and those of the lower surface of the control box (59) are in the refrigerating chamber (8). It is oriented. As a result, the light from the illuminating lamp (60) is satisfactorily emitted in the vertical direction in front of the doors (57) (29) (30) and in the upper chamber (51) and the refrigerating chamber (8) directions. ing.

As shown in FIG. 8 and FIG. 9, recesses 106 are formed by recessing both front portions of the bottom surface 48A of the inner box 48 of the upper heat-insulating box body 3, and the bottom portion (outer surface) of this recess 106 is formed. Is the outer box 47 of the upper insulation box 3.
It comes in contact with the bottom surface 47A of the. Also, outer box (47)
From the back surface (47B) near the bottom surface (47A), the lead wire (109) extending from the electrical components inside is sealed by the bush (107) and the sealing material (108) as shown in FIG.
Further, a lead wire (112) similarly sealed by a bush (110) and a sealing material (111) is led out from the back surface (4B) near the top surface (4A) of the outer box (4). When attaching the upper insulation box (3) to the lower insulation box (2), the outer box (4) of the lower insulation box (2) and the outer box of the upper insulation box (3) on the top surface (4A) (47) The lower surface (47A) is superposed and placed. Screw 1
15 is penetrated through the holes formed in the bottom of the recess 106 and the bottom 47A of the outer box 47 of the upper insulating box 3 corresponding to this bottom, and the screw 115 is located at the portion corresponding to this bottom. The inner box 48 of the upper heat-insulating box 3 is fixed to the top plate of the outer box 4 of the lower heat-insulating box 2 so as to be in contact with the surface of the heat insulating material 4A on the mounting plate 114 embedded in the heat-insulating box 6. The bottom of the recess 106 and the bottom surface 47A of the outer box 47 of the upper insulating box 3 are fixed so as to overlap with the upper surface (top surface) of the lower insulating box 2. Thereafter, as shown in FIG. 8, the recess 106 is concealed by engaging the recess 106 from the inside of the cover 116. The cover 116 is a recess
The shape and size are such that they fit into 106, and the height is formed so as to be substantially flush with the bottom surface 48A of the inner box 48. As a result, the recess (10) and the screw (115) are hidden so that there is no problem in design. Next, the lead wires (109) and (112) are connected by the connectors (117) and (118). (11
9) is an inner hollow box-shaped fixture having a length extending between the upper and lower heat-insulating boxes (3) and (2).
9) After connecting (112), cover the lead wires (109) (112), bushes (107) (110), etc. from the rear and store them inside, and use the screws (120) (121) for the upper and lower ends. It adheres to the upper and lower insulating boxes (3) and (2). As a result, the rear parts of the upper and lower insulating boxes (3) and (2) are joined together. At this time, the fixture (11
9) is exposed to the outside (two places on the left and right in the embodiment), but since it is the back of the refrigerator (1), there is no problem in design.
Further, since the lead wires (109) (112) can be connected in a state where the upper heat insulating box (3) is placed on the lower heat insulating box (2), the work is significantly facilitated. Furthermore, since the lead wires (109) (112) are protected by the fixtures (119), the lead wires (109) (112) are not broken by a collision during transportation of the refrigerator (1), and are exceptional. There is no need to install a guard member etc.

(G) Effect of the Invention According to the present invention, the upper and lower heat-insulating boxes are firmly connected and fixed at the front with the joining member and at the back with the fixing member, and the lead wire and the connecting portion are securely fixed with the fixing member. Be protected. In particular, since the front parts of the upper and lower insulating boxes are fixed by the connecting member that is attached to the recess located in the front part of the bottom surface of the inner box of the upper insulating box, the upper and lower insulating boxes are opened and closed unexpectedly. It is possible to prevent the front side of the upper insulation box from floating up with the fixtures located at the back of both insulation boxes as a fulcrum due to the impact of etc. and to prevent the lead wire from being cut due to excessive tension. it can. In addition, since the connecting member for preventing the floating of the upper heat-insulating box body is provided inside the upper heat-insulating box body so as not to be exposed to the front side of the refrigerator, the appearance of the refrigerator is not impaired, and the recess is provided in the outer box. Since it is formed so as to come into contact with and is covered with a cover, this cover can prevent dew that adheres to the inner box of the upper insulating box from entering the recess, and the dew generated in the recess is transmitted to the connecting member and the upper insulating box. It is possible to prevent it from entering the inside of the heat insulating material of the body, and even if this connecting member penetrates the inner box of the lower heat insulating box, it is hidden by the cooler so that the connecting member can be seen from the front opening of the lower heat insulating box. Can also be prevented.

[Brief description of drawings]

Each drawing shows an embodiment of the present invention, FIG. 1 is a perspective view of a refrigerator, FIG. 2 is a front view of a refrigerator without each door, and FIG. 3 is a sectional view taken along line AA of FIG. Fig. 4 and Fig. 4 are sectional views taken along the line BB, Fig. 5 is a front view of the refrigerating compartment excluding the door, Fig. 6 is a rear perspective view of the refrigerating compartment door, and Fig. 7 is an enlarged plan view of the partition part. Fig. 8 is an enlarged side cross-sectional view of the main part of the upper and lower heat-insulating box superposition section,
FIG. 9 is a front perspective view of the upper chamber, and FIG. 10 is a rear perspective view of the refrigerator. (2) …… Lower insulation box, (3) …… Upper insulation box, (47)
…… Outer box, (48) …… Inner box, (106) …… Recess, (109)
(112) …… Lead wire, (119) …… Fixing tool.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyoshi Horikoshi 180 Sakata, Odaizumi-cho, Gunma Prefecture Oozumi-cho, Toyo Sanyo Electric Co., Ltd. (56) References: 56-56583 (JP, U) 59-52371 (JP, U) Actual public Sho-47-28942 (JP, Y1)

Claims (1)

[Claims] 1. An outer box and an inner box having front openings, and an upper heat insulating box and a lower heat insulating box made of a heat insulating material filled between the inner and outer boxes are polymerized to form a lead wire having a connecting portion at a tip thereof. A refrigerator in which coolers cooled by the cooler are circulated to the upper and lower heat insulating boxes by being drawn out from the back surfaces of the upper and lower heat insulating boxes and having a cooler arranged on the ceiling of the lower heat insulating box. A recess formed so that the bottom part of the inner box of the upper heat-insulating box is recessed so that the bottom is in contact with the outer box of the upper heat-insulating box, and the upper and lower heat-insulating boxes attached to this recess. A coupling member that couples the front part, a cover that covers the recess, and a fixture that couples the backs of the upper and lower heat-insulating boxes, and a space formed by the fixture and the upper and lower heat-insulating boxes. A refrigerator characterized in that the connecting portion of the lead wire is housed in.