JPS5928296Y2 - refrigerator - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a refrigerator in which a fan is installed inside the refrigerator to forcibly circulate cool air inside the refrigerator.

Conventionally, in this type of refrigerator, the drive motor of the blower device was placed inside the refrigerator, so it was necessary to use the refrigeration cycle to cool down the heat generating part of the windings of the drive motor, which had the disadvantage of increasing the power consumption of the refrigeration cycle. .

Further, when the drive motor section is installed in a narrow refrigerator, the task of removing and replacing it is extremely troublesome.

Furthermore, the drive motor is cooled down and water droplets form on it, which can cause burnout of the windings.

For this reason, it is possible to install the drive motor outside the refrigerator, but if the drive motor is simply installed outside the refrigerator, the length of the drive shaft will become longer and the amount of eccentricity will increase, making normal operation impossible unless an eccentricity prevention device is added. It was something.

Furthermore, since the drive motor is placed outside the refrigerator, its vibration and noise are a problem, and warm air can enter through the hole through which the drive shaft passes.

The present invention has been made to improve these drawbacks.

That is, in a refrigerator in which a cold air circulation fan 12 is arranged inside the refrigerator, a drive motor storage member 15 separate from the outer box 2 is provided on the back of the refrigerator, and this drive motor storage member 15 is insulated from the drive motor storage part 15b. A communicating pipe section 15 that penetrates the wall 4
A drive motor 13 is disposed in the drive motor storage portion 15b, and a drive shaft 14 of the drive motor 13 is
is attached to the cold air circulation fan 12 by passing through the communication pipe part 15C, one side of the drive motor 13 is supported by the communication pipe part 12 in a vibration-proof manner, and cool air leaks from the communication pipe part 15C. A rubber seat 18 is provided to prevent this.

The details of the present invention will be explained below using an example shown in the drawings.
1 is a refrigerator main body, which is constructed by providing a heat insulating wall 4 between an outer box 2 and an inner box 3.

5 is a partition plate, which connects the upper part of the refrigerator main body 1 to the freezer compartment 6.
The lower part is partitioned into a refrigerator compartment 7.

Reference numeral 8 denotes a cooler, which is arranged in a cooling chamber 8b formed by a cooling chamber partition plate 8a provided on the back side of the freezing chamber 6.

10 is a decorative board having a cold air outlet 9, and a fan 12
and is arranged in front of the partition plate 8a.

Reference numeral 11 denotes an air blowing device, which includes a fan 12, a drive motor 13, a drive shaft 14, and the like.

The drive motor 13 has a winding 13a.

Reference numeral 15 denotes a drive motor storage member, which is arranged at a position corresponding to the cutout hole 16 provided in the back surface 2a of the outer case 2 of the refrigerator main body 1 so as to close the cutout hole 16, and is separate from the outer case 2. It is formed into a concave shape.

Inner box 3 at a position corresponding to the recess of drive motor storage member 15
A convex portion 3a is provided on the back surface of the container so as to extend toward the inside of the refrigerator.

The drive motor storage member 15 is integrally formed with a communication pipe portion 15C extending from the storage portion 15b to the inside of the refrigerator.

The drive motor 13 is located in the recess 1 of the drive motor housing member 15.
It is housed and installed in 5a.

That is, there is a rubber seat 1 on the drive motor 13 side of the communication pipe portion 15C.
8 is provided, and the rubber seat 18 is for vibration-proof mounting and support of the drive motor 13 and for preventing warm outside air from entering the refrigerator through the communication pipe part 15C, and a part of the outer periphery is provided with a communication pipe part 15C. It is inserted into the pipe portion 15C, and a bearing support 13b of the drive motor 12 on the inner side of the refrigerator is press-fitted into the inner surface.

On the other hand, the bearing support 13C on the outside of the refrigerator is press-fitted into the inner surface of a vibration-proof rubber seat 20 mounted on the mounting plate 19, and the blower 11 is supported by the rubber seat 18 and the vibration-proof rubber seat 20. Fixed by

The mounting plate 19 is made of a non-magnetic material such as aluminum or stainless steel.

A drive shaft 14 of the drive motor 13 passes through the communication pipe portion 15C and extends to the inside of the refrigerator, and the fan 12 is attached to the tip thereof.

Therefore, when this fan 12 starts operating, the cooler 8
The cooled air is forcibly blown out into the freezer compartment 6 and the refrigerator compartment 7.

According to the present invention, the drive motor 13 is installed in the drive motor storage member 1
5, and the drive shaft 14 passes through the thin wall portion 4a of the heat insulating wall 4, so the length of the drive shaft 14 can be shortened.

Therefore, the amount of eccentricity of the drive shaft 14 is reduced, and the blower 11
can be operated normally.

In addition, since the drive motor storage member 15 is molded separately from the outer box 2, there is no need to draw the recessed portion using a thick iron plate for the entire back plate of the outer case 2, and the drive motor storage member 1
5 only needs to be molded into a predetermined shape.

Furthermore, since the drive motor 13 is supported on the communication pipe section 12 via the rubber seat 18, it is an inexpensive drive motor support structure, and vibration noise can be significantly reduced. Since leakage of cold air from 15C is prevented, cooling performance does not deteriorate.

Moreover, since the communication tube section 15b is integrally molded into the drive motor storage member 15, there is no need for a seal between the storage section 15b and the communication tube section 15C, which facilitates manufacturing and improves the strength of the communication tube section 15C. The rubber seat 18 can also be supported reliably.

Furthermore, according to the present invention, the load on the refrigeration cycle is reduced by the amount of heat generated by the drive motor 13, and the cooling operation time can be shortened.

[Brief explanation of the drawing]

The figure is a longitudinal cross-sectional view of a blower attachment part on the upper back side of a refrigerator showing an embodiment of the present invention. 1...refrigerator body, 2...outer box, 3.
...Inner box, 4...Insulation wall, 5...
・Inner partition plate, 6... Freezer room, 7... Refrigerator room, 8... Cooler, 9... Cold air discharge, 10... ... Decorative board, 11 ... Air blower, 12 ... Fan, 13 ... Drive motor, 14 ... Drive shaft, 15 ... ... Drive motor storage member, 16... Cutout hole, 18...
...Rubber seat, 19...Mounting plate, 20...
...Gumza.

Claims (1)

[Scope of utility model registration request] In a refrigerator in which a cold air circulation fan 12 is arranged inside the refrigerator, a drive motor storage member 15 separate from the outer box 2 is provided on the back of the refrigerator, and this drive motor storage member 15 is connected to the drive motor storage portion 15b and the heat insulating wall 4. The drive motor 13 is disposed in the drive motor storage part 15b, and the drive shaft 14 of the drive motor 13 passes through the communication pipe part 15C to circulate the cold air. fan 1
2, a rubber seat 18 is provided to support one side of the drive motor 13 in a vibration-proof manner on the communication pipe part 12 and to prevent cool air from leaking from the communication pipe part 15C.