JPH0718643B2 - refrigerator - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly to a refrigerator suitable for reducing contact noise and vibration of a control device and simplifying assembly.

[Prior Art] Conventionally, this type of control box is a control box formed by extrusion molding as described in Japanese Utility Model Laid-Open No. 52-35668 and integrally has a groove for fixing a supporting member of a control device. .

[Problems to be solved by the invention]

In the above-mentioned conventional technique, the control device is fixedly stored in the plastic or metal plate by screws, and in particular, when the outer shell of the control box has a non-combustible structure, the metal plate must be screwed and fixed. In that case, the contact sound and vibration of the control device resonate and resonate in the metal control box, and particularly in a refrigerator where importance is placed on quietness, it may cause abnormal noise and be subject to complaints from customers.

The object of the present invention is to make the outer shell of the control box a non-combustible structure,
Flexible plastic is used to fix the controller,
An object of the present invention is to provide a refrigerator having a control device that maintains the quietness of the refrigerator.

[Means for Solving the Problems] The above-mentioned object is a member for interposing a flexible plastic locking tool between the control device and the metal shell and fitting and locking the control device to the locking tool. A retaining claw is provided, and the retaining claw is sandwiched between the side walls of the metal shell, and a boss is provided on the retaining claw, and the retaining boss is fitted and inserted into the hole of the control device. This is achieved by pressing and holding the side wall of the metal shell.

[Action]

By holding the locking claws of the flexible plastic locking tool between the side walls of the metal shell, it is possible to prevent the reduction of the clamping strength due to the creep peculiar to the plastic, and to control the locking claws by providing a boss. By fitting and inserting into the hole of the device, the control device can be fixed and prevented from falling out without being fixed by screws.

Further, the flexible plastic locking device has a locking claw and a locking boss which, due to their own flexibility, loosen the contact sound and vibration of the control device and transmit them to the outer shell, so that the outer shell is made of metal. Even though it is a non-combustible structure, it is possible to maintain the quietness of the refrigerator.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.
In the machine room 11 at the bottom of the refrigerator main body 10, a bottom surface is composed of a base plate 12, and a compressor 15 is elastically supported by a vibration-proof rubber 14 attached to a pin 13 protruding above the base plate 12. There is. Reference numeral 19 is a control box containing a control device (defrosting timer) 20 for controlling the defrosting of the evaporator of the refrigeration cycle in the refrigerator, and the control box 19 is a metal outer shell (cover) 25 and a flexible plastic lock. A metal outer bottom plate 28 is attached to the bottom of the locking tool 23, so that the entire circumference of the control device 20 is surrounded by a metal plate, and the control inside the control box 19 is controlled. Even if there is smoke or fire from the device 20, it has a non-combustible structure that does not spread to other parts around it.

As shown in FIG. 1, when the width W2 of the control device 20 is reduced, the size W1 between the locking claws 24a and 24b provided in the locking tool 23 facing the control device 20 in advance is reduced. , W2-W1, the locking claws 24a, 24b are pushed toward the side wall 31 side of the metal shell 25 by the flexibility which is a characteristic of the material of the locking tool 23. At this time, the control device 20 is sandwiched by the compound force F of the locking claws 24a and 24b, and is firmly held together with the holding portion 32 provided at the rear portion of the control device 20. Also, the locking claws 24a, 24b
Since the outer side of the metal shell 25 is sandwiched by the side walls 31 of the metal shell 25, the locking claws 24a, 24b due to the creep phenomenon that is peculiar to plastic.
It prevents the decrease of the compound force F. Further, the locking claw 24
Since a and 24b are interposed between the control device 20 and the side wall 31 of the metal outer casing 25, the control device 20 and the metal outer casing 25 do not come into direct contact with each other. Timer) 20 pivot motor core 30 and metal shell 25
It also prevents malfunction of the control device due to magnetic leakage due to approach or contact with, and absorption of contact sound and vibration of the control device 20,
It also serves as a cushioning material that relaxes the slight vibrations received from the compressor 15.

Locking bosses 26a, 26b projecting in the locking tool 23 in a direction parallel to the surface of the base plate 16 are fitted and inserted into the holes 27a, 27b of the control device 20,
By holding the locking bosses 26a and 26b by the metal outer casing 25, the control box of the control device 20 can be secured without screws.
It is prevented from falling out and falling out within 19. Also, the locking boss
Since 26a and 26b are interposed between the metal shell 25 control devices 20, they also serve as the above-mentioned cushioning material.

〔The invention's effect〕

According to the present invention, the control box is made of metal (non-combustible structure) to reduce contact noise and vibration of the control apparatus to keep the refrigerator quiet, and the control apparatus in the control box without fixing with screws or the like. Since it can be prevented from falling off or coming off, it is possible to obtain a control device fixing structure with improved workability during assembly.

[Brief description of drawings]

FIG. 1 is a front view of a control box equipped with the present invention, FIG. 2 is a side view of the control box equipped with the present invention, and FIG. 3 is a perspective view of essential parts of a refrigerator equipped with the present invention. 10 …… Refrigerator body, 11 …… Machine room, 12 …… Base plate, 15
...... Compressor, 19 ...... Control box, 20 ...... Control device, 23 ...... Locking tool, 24a, 24b …… Locking claw, 25 …… Metal shell, 26a, 26b
...... Locking bosses, 27a, 27b ...... holes

Claims (1)

[Claims] 1. A control box containing a control device, wherein the control box outer shell is made of metal, and a flexible portion is provided between the control device and the metal outer shell so that the metal outer shell and the control device do not come into direct contact with each other. In the case of interposing a flexible plastic locking tool, a locking claw for fitting and locking the control device is provided on the flexible plastic locking tool, and the locking claw is provided on the side wall of the metal shell. A refrigerator characterized by having a control box held between.