JPH03211384A - Refrigerator - Google Patents

Abstract

PURPOSE:To obtain a highly reliable refrigerator without condensation and a reduction in the inner volume by a method wherein the connections between a controller and electric parts are not buried in heat-insulating material so that seals of the foamed heat-insulating material become unnecessary. CONSTITUTION:An inner case 2 which includes a freezing compartment 5 and a refrigerating compartment 6 is enclosed and fixed in an outer case 3, and foamed heat-insulating material 4 is filled between those cases 2 and 3 and into an intermediate partition 7 simultaneously. A recessed part 25 is provided on the ceiling of the refrigerating compartment 6 of the inner case 2. A controller substrate 14 is set in the recessed part 25, and its lower face is heat-insulated and covered by an electric part cover. The controller substrate 14 is connected to electric parts (a motor-driven damper thermostat 18, a temperature detector 19, etc.) by lead wires 20 which are not buried in the foamed heat-insulating material 4. Thereby, seals of the heat-insulating material become unnecessary and a highly reliable refrigerator without condensation and a reduction in the inner volume for enclosing the controller in the compartment can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a structure for installing a control board in a refrigerator.

[Prior Art] Fig. 8 is a sectional view showing a conventional refrigerator-freezer disclosed in, for example, Japanese Utility Model Application Publication No. 63-194279. ) and inner box f21,
(It is composed of a foam insulation material (4) filled between 3i. The inner box (2) has a freezer compartment (5) and a refrigerator compartment (6).
) and the parallel upper 6 (7) between the painting rooms (5) and (6).
The inner partition (7) consisting of Al and the lower plate (7b) are integrally formed of synthetic resin, and the upper plate (7a) of the inner partition (7) has an opening toward the freezer compartment (5). Suction port (8)
, the lower plate (7b) has a suction port (
9). (10) is a partition wall that is inserted and fixed inside the partition (7) and is divided into an upper insulation material (10al) and a lower insulation material (flOb) such as styrofoam, and there are suction ports (8) and (9) inside. ) A cold air circulation duct (Ill, (12+) is formed.

In addition, there is a board storage box (13) in the upper part of the back of the outer box (3).
) is installed, and a control board (
14) is stored and closed with an electrical component cover (15). (16) is a cooler installed at the rear of the freezer compartment (5). (171 is a blower installed above this cooler (16). (18) is the cold air flowing into the refrigerator compartment (6). (191 is a temperature detector that detects the temperature of the refrigerator compartment (6).

The control board (14) and electrical components (for example, the blower [17
1. Electric damper thermometer (18), temperature detector (19)
) etc.) is connected to the lead wire (20
) are connected. (21) is the through hole where the lead wire (20) passes through the inner box (2), (22) is the through hole of the board storage box with sealing material (23), (24)
etc. to prevent foam insulation from leaking.

Next, the operation will be explained. To assemble the refrigerator body (1), insert the inner partition wall Do (composed of the lower insulation material (10a) and the lower insulation material (LOBL)) into the inner partition (7) of the inner box (2), and then Pass one side of the lead wire (20) that connects the control board (14) and electrical components to the inner side of the refrigerator (electrical component side) through the through hole (21) of the inner box (2) and insert the sealing material (23), etc. The through hole portion (21) is sealed with.

Next, fit the inner box (2) into the outer box (3), and then fit the outer box (
Fix the board storage box C]3) to the upper part of the back of 3). Also, pass the opposite side of the lead wire (20) through the through hole (22) of the board storage box (13), (241
The through hole portion (22) is similarly sealed with a sealing material or the like.

In this state, the foam insulation material (4) is filled.

Cooling of this refrigerator will be explained. The cold air cooled by the cooler (16) installed at the rear of the freezer compartment (5) is blown by the blower (I7), cooling the interior of the freezer compartment (5), and passing through the suction opening on the freezer compartment (5) side. Through the opening (8), the cooler (
Return to 16).

A portion of the cold air is also blown into the refrigerator compartment (6).

The air volume inside the refrigerator compartment (6) is adjusted using an electric damper thermometer (18) based on the temperature detected by a temperature detector (19).

The refrigerator compartment (6) is cooled to a predetermined temperature.

The cold air is passed through a suction port (9) opened on the side of the refrigerator compartment (6),
The cold air returns to the cooler (16) through the cold air circulation duct (12) in order, and is circulated there.

[Problem to be solved by the invention] Since the conventional refrigerator is configured as described above, the lead wires that connect the control board and the electrical components inside the refrigerator are buried in the foam insulation material, so the inner box and It is necessary to seal the through hole of the board storage box, which increases the number of man-hours and cost. Furthermore, there were other problems such as poor sealing and leakage of the foam insulation material, impairing the appearance and functionality. It also causes obstruction to the flow of the foam insulation material, creating voids.

There was a problem that the heat insulation properties were deteriorated.

This invention was made to solve the above problems, and the control board is housed inside the refrigerator.

The purpose is to obtain a highly reliable refrigerator that does not reduce the internal volume (and does not cause condensation).

[Means for Solving the Problems 1] A refrigerator according to the present invention is one in which the interior of the refrigerator is partitioned into each chamber by a partition portion, and a control device for electrical and electrical components is housed in the refrigerator main body, wherein the partition portion is made of foamed heat insulating material. The control device is housed in the partition, and wiring for connecting the control device and electrical components is provided outside the partition.

It is also effective to provide a heating means near the control device.

The interior of the refrigerator is divided into each chamber by a partition, a storage case is provided in each chamber, and a control device for electrical components is stored in the refrigerator main body, and the control device is located between the partition and the storage case. It has been stored.

[Function] In the refrigerator according to the present invention, the connection between the control device and the electrical components inside the refrigerator is not buried in the heat insulating material, so sealing of the foam heat insulating material is not necessary.

[Embodiment] A first embodiment of the present invention will be described below with reference to the drawings. Description of the same components as those of the conventional example will be omitted. FIG. 1 is a cross-sectional side view according to a first embodiment of the present invention. Inner box (2) with a freezer compartment (5) and a refrigerator compartment (6) formed into a body with a partition part (7)
Store and secure it in the outer box (3).

The foam insulation material (4) is injected and filled into the partition (7). A recess (25) is provided in the ceiling of the refrigerator compartment of the inner box (2) to accommodate the control board (14), and the electrical component cover (15) (
It is insulated and closed by a part of the cover (15a) and a heat insulating member (15bl).

FIG. 2 is a front sectional view showing a first embodiment of the present invention.

By locating the back parts (26) such as transformers and relays disposed in the control board (14) closer to the center of the refrigerator, the depth of the recess (25) is deeper at the center and shallower at both sides. It is tilted. Therefore, the middle partition (7
) The insulation thickness of the foam insulation material (4) is thicker on both sides.

Further, FIG. 3 is a sectional side view of a main part showing a first embodiment of the present invention.

Lead wires (20) connecting the control board (14) and internal electrical components (electric damper thermometer (181, temperature detector (19), etc.) are routed without being buried in the foam insulation material (4). Ru.

The node wire (20) is connected to the outlet part (
It goes out from 15cl, but its position is from the control board (14
) is located below.

Next, the operation will be explained.

Assembling the refrigerator body consists of the freezer compartment (5) and the refrigerator compartment (6).
The inner box (2), which is formed integrally with Also inject and fill.

A recess (25) is provided in the ceiling of the refrigerator compartment of the inner box (2), and a control board is housed in the recess (25).

Furthermore, the lower side is insulated and closed with an electrical component cover.

Since the partition part (7) is made of a foam heat insulating material with good heat insulation performance, the wall thickness can be made thin.

Furthermore, since the control board (14) is stored in the recess (25), it can be installed without protruding when viewed from the front and without reducing the internal volume.

In addition, there is no air passage in the partition part (7), and the inner box (2
) and the foam heat insulating material (4) are in close contact with each other, so cold air flows around and does not condense on the board storage area on the ceiling of the refrigerator compartment.

In addition, it is constructed as shown in Figure 2 and has two foam insulation materials (4).
Since the water flows into the middle partition (7) from both sides, the flowability is improved because the insulation thickness on both sides is thicker.
Filling of the container is also ensured.

Further, as shown in FIG. 3, the lead wire outlet portion (15c) of the electrical component cover (15) is located below the control board (14), so even if dew condensation occurs in the worst case, it will flow out.

In the first embodiment, a recess is provided in the ceiling of the refrigerator compartment for storage, but even if the control board is stored in the floor on the side of the freezer compartment, the same effect as in the first embodiment can be obtained. play.

FIG. 4 is a cross-sectional side view showing a second embodiment of the present invention. In this embodiment, a heater (30) provided near the control board (14) in the recess (25) controls the recess (25) and the control board (14). The substrate (14) is always maintained at a high temperature without condensation. ON10 F F of the heater (30) is controlled by a temperature sensing element (32) on the control board (14) or an outside temperature sensing element (33). Furthermore, since the heater (30) is attached to the electrical component cover (15), this heater (30) can also be used as a temperature guarantee heater for the food storage compartment (31) under the electrical component cover (15).

FIG. 5 is a cross-sectional side view showing a third embodiment of the present invention, and FIG. 6 is a detailed cross-sectional view of the main part thereof.

The chilled compartment door (39) and the vegetable compartment door (40) that close the openings of the chilled compartment (34) and the vegetable compartment (35) are each equipped with a magnetic gasket (39a) around the entire circumference to prevent cold air from escaping. ), (40al is attached, and the partition (41) between the chilled compartment (34) and the vegetable compartment (35) (
Iron plate part (41b+, insulation part (41cl) and cold air return part (
The door is held and fixed in close contact with the plastic part 41, al + 41d).

Therefore, the dimensions of the partition (41) are
+, Magnetic gasket (39a) for vegetable compartment door (40)
), (40a) dimensions and 9 double doors (39), (401
There must be a certain distance between the partitions so that they do not collide even when a load is applied, and a heat dissipation pipe (46) is buried in the partition (41) to prevent condensation.
Gasket (39a) to prevent 6) from heating up the inside of the refrigerator.
.

It is desirable to be located on the outside of the refrigerator at position f40a),
To ensure a pipe pitch that prevents the pipe (46) from deforming, a certain dimension (approximately 40 mm or more) is required. On the other hand, the partition wall (4) that separates the chilled room (34) and the vegetable room (35)
5) is made of thin plastic etc. because the temperature difference is relatively small, and the partition wall (41) is
45) There is a dead space in the upper part where food cannot be stored, and electrical components such as a control board (14) are stored there and closed with an electrical component cover (15).

Here, the electrical equipment cover (15) is the chilled case (36)
The dimensions are such that the lowest point, which deforms when a food load is placed on it, will not collide even if it is pulled forward.

FIG. 7 is a front view of the third embodiment, and shows that the control board (14) and the electrical component cover (15) are located at the end which is relatively deformed when a food load is placed on the chilled case (36).
), and also concentrate the tall parts (47) such as transformers and relays arranged inside the control board (14) at the ends when viewed from the front, and place the electrical component cover (J5) near the center. If the structure is made lower, the space between the chilled case (36) and the electrical component cover (15) can be effectively secured.

In addition, the control board (14) and electrical components (electric damper thermometer (181), temperature detector (19a), (19b)) installed especially in the refrigerator compartment (6) and chilled compartment (34) are also included.
etc.) are not buried in the foam insulation material (4).

Further, the wiring (20) is connected to the electrical component cover (15).

Since it is covered, there are no inconveniences such as the wiring (20) being visible to the user or becoming tangled when the chilled case (36) is pulled out.

Furthermore, a cold air return section (41a) is located on the opposite side of the electrical component cover (15), so that it is not affected by temperature.
It does not obstruct the wind path.

Next, the operation will be explained.

The control board (14) and electrical cover (15) are provided at the rear of the partition (41) and above the partition wall (45), so even if the chilled case (36) is deformed by food load. There is no problem in opening and closing the chilled room door (39).

Furthermore, the partition (41) needs to have a certain size as mentioned above, and in the case where the door (341, (35) is a pull-out type and the cases (36), (37) are stored inside it) In order to prevent the case from colliding with the partition (41), the case cannot be lowered to the rear of the partition (41), so the control board (14) and electrical component cover (15) are placed in the dead space of food storage. Since it stores food, it does not reduce the amount of food stored by the user.

In addition, in the third embodiment, the freezer compartment (5),
4 refrigerator compartments (6), chilled compartments (34), and vegetable compartments (35)
I explained about the door refrigerator, but there are two drawer doors on the top and two on the bottom.
The same effect can be obtained for those installed on the tiers.

Furthermore, the same applies to those in which the case inside the refrigerator slides back and forth even if it is not a drawer door, and a dead space is created between the lower part of the case at the rear of the partition.

[Effects of the invention 1 Since the present invention is configured as described above.

This produces the following effects.

In the refrigerator of claim (■), the control device can be stored in the refrigerator without reducing the internal volume, and the connection between the control device and the electrical components is not buried in the heat insulating material, so there is no need to seal the heat insulating material. be effective.

In the refrigerator according to the second aspect, since the heating means is provided near the control device, it is possible to prevent dew condensation on the control device.

In the refrigerator according to claim 3, the control device can be housed in the refrigerator without reducing the internal volume, and the connection between the control device and the electric components is not buried in the heat insulating material, so there is no need to seal the heat insulating material. be effective.

[Brief explanation of drawings]

FIG. 1 is a side sectional view of a first embodiment of the invention. Fig. 2 is a front sectional view of the same, Fig. 3 is a side sectional view of the main part thereof, Fig. 4 is a side sectional view of the second embodiment of the present invention, and Fig. 5 is a side sectional view of the third embodiment of the invention. FIG. 6 is a side sectional view of a main part thereof, FIG. 7 is a front sectional view thereof, and FIG. 8 is a side sectional view of a conventional refrigerator. In the figure, (1) is the refrigerator body, (5) is the freezer compartment,
(6) is the refrigerator compartment, and (7) is the middle partition (partition). (14) is the control board (control device), (181 is the electric damper thermometer (electrical component), (191 is the temperature detector (electrical component), (201 is the lead wire (wiring)
, (301 is a heater (heating means), (361
is a chilled case (storage case), (41, 1 is a partition part). Note that the same reference numerals in each figure indicate the same or equivalent parts.

Claims (3)

[Claims] (1) In a refrigerator in which the interior of the refrigerator is partitioned into each chamber by a partition, and a control device for electrical components is housed in the refrigerator main body, the partition is made of foamed heat insulating material, and the control device is housed in the partition. 2. A refrigerator according to claim 1, wherein wiring for connecting the control device and electrical components is provided outside the partition. (2) The refrigerator according to claim 1, characterized in that heating means is provided near the control device. (3) In a refrigerator in which the interior of the refrigerator is divided into each chamber by a partition, a storage case is provided in each chamber, and a control device for electrical components is stored in the refrigerator main body, the control device is located between the partition and the storage case. A refrigerator characterized by being stored in.