JPH0436567A - Refrigerator - Google Patents

Abstract

PURPOSE:To make it possible to inhibit the effect of vibration noise of a motor to the outside of a refrigerator to a low value by supporting the depth of the motor with a mounting material made of a damping material to use a vibration absorption section after having assembled a motor axis so that it may extend to a cover which supports the front of the motor designed to circulate cooled air. CONSTITUTION:A plate-shaped noise absorption material is formed by damping steel plate and is fixedly installed to the inner surface of a rear plate 2a of an outside box so that it may clog an rear opening section of a case 24. Under this condition, a motor shaft 14a of a motor 14 is adapted to project from a hole 25a of a cover 25 so that the front of the motor 14 may be assembled by way of damping rubber 22. After it is assembled, the depth of the motor 14 is supported with a mounting section material 26 so that an engagement hole 26a may be fit into a support claw section of the cover 25 by way of damping rubber. Since the mounting section material 26 is required to serve as a vibration absorption section made of damping steel plate, it is possible to inhibit the effect of the vibration noise of the motor 14 to the outside of a refrigerator to a low value.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention accommodates and supports a cold air circulation motor in a case whose rear opening is closed by an outer box and whose front opening edge is fixed to the hole edge of the inner box. Regarding refrigerators.

[Conventional technology]

FIG. 4 shows a top sectional view of the general refrigerator 1.

In the figure, 2 is an outer box, 3 is an inner box, and a heat insulating material 4 is filled between the boxes 2 and 3 using an in-situ foaming method. 5 is a partition wall that divides the inside of the inner box 3 into a freezer compartment 6 and a refrigerator compartment 7; 8 and 9 are both compartments 6;
, 7.

A cooling chamber 10 houses a cooler 11, and a duct member 13 is provided in front of the cooling chamber 10 to send cold air from a cold air passage 12 to both chambers 6 and 7. A fan 15 driven by a motor 14 is arranged near the cold air passage 12. Fifth
The figure shows an enlarged sectional view of a conventional cold air circulation motor 14 portion. A hole 3a is formed in the inner box 3 in the vicinity of the cold air passage 12, and a substantially penetrating plastic case 16 located on the heat insulating material 4 side of the hole 3a# is provided with an adhesive material/sealing material 1.
Fixed at 7. When the inner box 3 is assembled into the outer box 2, the back opening edge of the case 16 comes into contact with the back plate 2a via the sealing material 18 to close the back opening, thereby forming a space 19 with an open front inside the refrigerator. , the insulation material 4 is filled.

A plastic cover 20 is provided with a heat insulating material 21 on the inside, and has a hole 20a through which the motor shaft 14a is projected toward the inside of the refrigerator. The motor 14 has a motor shaft 14a protruding from a hole 20a, and its front part is supported by the cover 20 via a vibration-proofing rubber 22, and its rear part is supported by a vibration-proofing rubber on a support rib 16a extending from the rear opening edge of the case 16. 23. A fan 15 is fixed to the tip of the motor shaft 14a, and in this state, the motor 14 is inserted into the space 19 so as to dissipate the heat generated from the back plate 2a, and the cover 20 is placed over the front opening of the case 16. It is attached.

[Problem to be solved by the invention]

However, in this configuration, since the support rib 16a that supports the inner part of the motor 14 is integrally formed with the case 16, the motor 1
The vibration of No. 4 was transmitted from the case 16 to the back plate 2a of the outer box 2, and vibration noise was generated outside the refrigerator, resulting in a problem with quietness.

An object of the present invention is to provide a refrigerator that suppresses the influence of motor vibration noise outside the refrigerator.

[Means to solve the problem]

In order to achieve the above object, the refrigerator of the present invention includes a case in which the back opening is closed with an outer box and the front opening edge is fixed to the hole edge of the inner box, and a space formed by a cover that covers the front opening of the case. A motor for cold air circulation is installed, a motor shaft is made to protrude inward from the cover, a front part of the motor is supported by the cover, and a rear part of the motor is supported by the cover via a mounting member. In the refrigerator, the mounting member was formed of a damping steel plate.

[Effect]

With this configuration, after the motor shaft is assembled to the cover that supports the front part of the motor for cold air circulation so as to protrude outward, the inner part of the motor is supported by a mounting member made of a damping steel plate. Since it is used as a vibration absorbing part, the influence of the vibration noise of the motor on the outside of the refrigerator can be suppressed to a low level.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on FIGS. 1 to 3. FIG. 1 is an enlarged horizontal sectional view of the vicinity of the motor 14 of the present invention, and FIG. 2 is a vertical sectional view thereof.

Moreover, FIG. 3 is a perspective view.

Reference numeral 24 denotes a substantially penetrating plastic case, whose front opening edge is positioned on the side of the heat insulating material 4 at the edge of the hole 3a of the inner box 3, and is fixed to the adhesive/sealing material 17. Reference numeral 25 denotes a plastic cover provided with a heat insulating material 21 on the inside, and provided with a hole 25a through which the motor shaft 14a projects toward the inside of the refrigerator, and a support claw portion 25b provided on the heat insulating material 21 side. Reference numeral 26 denotes a substantially U-shaped mounting member, which is made of a damping steel plate, and is provided with an engagement hole 26a that engages with the support claw portion 25b of the cover 25. Reference numeral 27 denotes a flat noise absorbing member, which is made of a damping steel plate, and is attached to the back plate 2a of the outer box 2 so that the back opening of the case 24 is closed.
is fixed to the inner surface of In this state, the motor shaft 14a of the motor 14 is made to protrude from the hole 25a of the cover 25, and the front part of the motor 14 is assembled via the anti-vibration rubber 22. It is supported by the mounting member 26 so that the engagement hole 26a engages with the support claw portion 25b of the cover 25. A fan 15 is fixed to the tip of the motor shaft 14a, and when the motor 14 is inserted into the space 19 in this state so as to dissipate heat from the back plate 2a, the cover 25
is attached to cover the front opening of the case 24. In the refrigerator configured as described above, the motor shaft 14a is assembled to the cover 25 that supports the front part of the motor 14 for circulating cold air so that it protrudes outward, and then the inner part of the motor 14 is covered with a damping steel plate. Since it is supported by the formed mounting member 26 and serves as a vibration absorbing section, the influence of the vibration noise of the motor 14 on the outside of the refrigerator can be suppressed to a low level.

〔Effect of the invention〕

The present invention includes a case in which the back opening is closed with an outer box and the front opening edge is fixed to the hole edge of the inner box, and a motor for cold air circulation is installed in a space formed by a cover that covers the front opening of the case. In a refrigerator in which the front part of the motor is supported by the cover with the shaft protruding inward from the cover, and the back part of the motor is supported by the cover via a mounting member, the mounting member is made of a vibration-damping steel plate to prevent vibrations. Since it is an absorbing part, the influence of the vibration noise of the motor on the outside of the refrigerator can be suppressed.

[Brief explanation of the drawing]

Fig. 1 is a horizontal cross-sectional view of a case portion of a motor according to an embodiment of the present invention, Fig. 2 is a vertical cross-sectional view thereof, Fig. 3 is a perspective view of main parts showing the assembly order of the present invention, and Fig. 4 is a refrigerator. FIG. 5 is a cross-sectional view of the case portion of a conventional motor. 2...Outer box, 3...Inner box. 4...Insulating material, 14...Motor, 24...
...Case, 25...Cover 25b...
Support claw portion, 26... Mounting member, 26a... Engagement hole, 27... Noise absorbing member.

Claims (1)

[Claims] 1. A space for circulating cold air in a space formed by a case whose back opening is closed with an outer box and whose front opening edge is fixed to the hole edge of the inner box, and a cover that covers the front opening of the case. In a refrigerator in which a motor is installed, a motor shaft protrudes inward from the cover, a front part of the motor is supported by the cover, and a rear part of the motor is supported by the cover via a mounting member, A refrigerator characterized in that the mounting member is made of a damping steel plate. 2. The refrigerator according to claim 1, wherein a noise absorbing section formed of a damping steel plate is fixed to the inner surface of the outer box that closes the rear opening of the case.