JPS6030972A - Refrigerator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Field of Application of the Invention] The present invention stores a drive motor whose coil part is not molded for moisture insulation in a recess formed in an inner box, and the heat of the drive motor is transferred to the outside of the refrigerator. This invention relates to a refrigerator equipped with a fan for forced circulation inside the refrigerator.

[Prior art]

As shown in FIGS. 1 and 2, there are two general methods for mounting the forced circulation fan (drive motor) in this type of refrigerator. One of them is the so-called out-motor method, as shown in FIG.
As shown in the figure, the inner box 4 has a recess 7 for housing the drive motor 5.
form.

There is an in-motor type in which the drive motor 5 is housed in the recess 7 through the opening 6. (In this case, the coil part 5a of the drive motor 5 is molded with epoxy resin or the like to prevent a short circuit in the coil part.) The motor is made separately from the rear plate 1 or the inner box 4. Since the drive motor 3 is attached to the storage part of the case 8, there is no need for a mold to protect the coil part of the drive motor or the influence of heat on the inside of the refrigerator. Not only is a sealing measure (sealing material 10) required, but also a cover 11 is required to close the opening 2 of the motor case 8 after the drive motor is installed.
It has the disadvantage that it is not good in terms of design because it requires

On the other hand, in the latter in-motor structure shown in FIG.
Not only does this require a heating system, but it also has disadvantages such as the effect of heat on the inside of the refrigerator.

[Purpose of the invention]

The present invention relates to a drive motor mounting structure that combines the advantages of the out-motor method and the in-motor method described above.

[Summary of the Invention] That is, the drive motor is attached from the inner box side, and the drive motor can be attached or detached by opening the door without moving the refrigerator body, thereby improving serviceability. The heat generated by the drive motor is removed from the outside of the refrigerator, the protective mold for the coil winding part is eliminated, and a drive motor mounting structure is provided that prevents the vibration and noise of the drive motor from coming out of the refrigerator.

[Embodiments of the invention]

The details of the present invention will be explained below using an example shown in the drawings.
Reference numeral 21 denotes a refrigerator main body, and the refrigerator main body 21 is composed of an inner box 23 and an outer box 24 forming an interior 22, a foamed heat insulating material 25, and the like. Reference numeral 26 indicates a cooler installed at the back of the refrigerator interior 22, 27 indicates a partition plate that partitions the cooler 26 section and the food storage section, and 28 indicates a mouth ring section formed on the partition plate 27. This mouth ring portion 28 is provided with a fan 29 for circulating cold air inside the refrigerator. 30 is a fan guard, and a cold air outlet 3 is blown into the inside of the refrigerator by the fan 29.
1. 32 is a drive motor for the fan 291;
This drive motor 32 is housed in an inner box recess 2'3a formed by recessing the inner box 23 toward the rear plate 24a.

As shown in the figure, the depth of the depression is such that the surface of the inner box 23 on the side of the heat insulating material 25 comes into contact with the rear plate 24a.

In other words, a heat insulating material is not actively filled between the inner box recess and the rear plate 24a. Further, although the coil portion of the drive motor 32 is not shown in the drawing, it is not provided with a moisture-shielding mold. Reference numeral 33 denotes a drive motor mounting member consisting of a cover portion 33a that closes the opening 23b of the inner box recess 23a, and a bowl-shaped case 331) to which the drive motor is mounted. However, the bowl-shaped case 33b of the lever is made of flame-retardant synthetic resin, etc., and the shaft lead-out hole 33C
In addition, a flange 33e is provided around the opening 33d. 34 is a rubber seat I that holds one end of the drive motor 32, and this rubber seat I34 is the shaft lead-out hole 3 of the bowl-shaped case 33b.
3C, so that cold air does not enter or exit from the press-fitted portion between the case 33b and the rubber seat 34. 35 is a lid body having a rubber seat I [36 that holds the other end of the drive motor 32. This lid 35 is attached so as to close the opening 33d of the bowl-shaped case 33b.

A clamping portion 35a provided on the outer peripheral edge of the lid 35 fits into the flange 33e to isolate the inside of the bowl-shaped case 33b from the surroundings. 36a is a protruding rib formed integrally with the rubber seat (2). This protruding rib 36a is connected to the lid body 35 and the inner box 23.
The drive motor 32 is provided between the rubber seats 1II (34) and (36).

Reference numeral 32a denotes a drive shaft that extends toward the inside of the refrigerator 22 when the drive motor 32 is installed. Drive motor mounting member 33
has a heat insulating material 37 for thermally separating the drive motor 32 mounted in the bowl-shaped case 33'b from the inside of the refrigerator 22. Inner box 23
This is a fixing screw for fixing to.

If the drive motor 32 has such a mounting structure, the drive motor 32 does not have a molded coil part.
is elastically supported within the bowl-shaped case 33b of the drive motor mounting member 33 by a rubber seat I34 and a rubber seat 1136 built into the lid 35. 37, etc., to substantially block moisture.

〔Effect of the invention〕

As explained above, the present invention is a drive motor mounting member integrally formed with a bowl-shaped case and a cover that closes the opening surface of a recess formed by recessing the back of the inner box to near the rear plate. The refrigerator is held in a sealed state with the inside of the refrigerator, and the drive motor is supported elastically through the rubber seats (■, ■), so if you open the door without moving the refrigerator itself,
The drive motor can be attached and detached to improve serviceability, and the heat generated by the drive motor itself can be radiated outside the refrigerator. Regardless, it is possible to obtain a drive motor mounting structure that does not require a moisture-shielding mold for the drive motor coil portion. Also, a bowl-shaped case 33b of the drive motor mounting member that houses the drive motor.
A cover that closes the opening of the inner box is integrally formed, and the drive motor and heat insulating material 37 are assembled around the mounting member, which not only improves work efficiency, but also reduces the vibration noise of the drive motor compared to conventional methods. As shown in the figure, the noise is not transmitted directly to the rear panel facing the outside, but is transmitted to the rear panel etc. via the inner box foam insulation material 25, so the noise emitted to the outside (especially to the rear) is significantly reduced. It is something that can be done.

[Brief explanation of the drawing]

1 and 2 are longitudinal sectional views of main parts showing conventional drive motor mounting structures, with FIG. 1 showing an out-motor one-way type and FIG. 2 showing an in-motor one-way type. FIG. 3 is a diagram showing a drive motor mounting structure provided with the present invention, and FIG. 4 is an enlarged sectional view of the bowl-shaped case, etc. in FIG. 3. 21... Refrigerator body, 22... Inside, 23... Inner box, 23a... Inner box recess, 23b... Opening, 24
...outer box, 24a...rear plate, 25...foam insulation material, 26...cooler, 27...partition plate, 28...mouth ring part, 29...for cold air circulation Fan, 30...
・Fan guard, 31... Cold air outlet, 32... Drive motor 533... Drive motor mounting member, 33a...
・Cover, 33b... Bowl-shaped case, 34... Rubber seat I, 35... Lid body, 35a... Holding part, 36... Rubber seat ■, 36a... Protruding rib, 37... insulation, 38
...Fixing screw. Representative Patent Attorney Akio Takahashi￥1 Figure

Claims (1)

[Claims] 1. The bowl-shaped case and the back of the inner box are brought close to the top. The inside of the bowl-shaped case of the drive motor mounting member, which is integrally formed with a cover that closes the four openings formed by recesses, is sealed almost from the inside of the warehouse with a lid body having a rubber seat (■) that supports one end of the drive motor. The refrigerator is characterized in that a drive motor is elastically supported between the rubber seat (1) and the rubber seat (1) attached to the bowl-shaped case side. 2. Rubber seat attached to the opening side of the bowl-shaped case■
2. The refrigerator according to claim 1, wherein the refrigerator is attached to a lid that substantially seals the opening. 3. The refrigerator according to claim 1, wherein a lid body that substantially seals the opening of the bowl-shaped case is detachably engaged with the case with claw-shaped gripping parts.