JPH081428Y2 - Fan motor fixed structure for refrigerator / freezer - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixed structure of a fan motor of a refrigerator / freezer for supplying cold air generated by an evaporator of a refrigerator to a refrigerator compartment and a freezer compartment.
In particular, the present invention relates to an integral fan motor fixing structure for fixing a fan motor to a rear wall in order to suppress fan motor vibration. In other words, by integrating the fixed structure of the fan motor, the fixing efficiency is increased, the number of parts is decreased, the cost is reduced, and at the same time, the refrigerator / freezer for lowering the machine failure rate and preventing noise is generated. The present invention relates to the improvement of the fan motor fixing structure of.

[0002]

2. Description of the Related Art As shown in FIG. 1, a fan motor of a refrigerator is generally constructed by attaching a blower blow to a motor shaft, and the fan motor 15 is generated from an evaporator 4 built in an intermediate wall 3. In order to supply the cold air to the freezing compartment 1A and the refrigerating compartment 1B, the intermediate wall 3 is directed toward the front of the refrigerator 1.
It is installed on the rear wall 12.

In a conventional fixing structure for fixing such a fan motor, for example, as shown in FIG. 5, a fan motor 15 is installed at a predetermined position on the rear wall 12 of the refrigerator, and the fan motor 15 is fixed. An impeller 15B is installed at the tip of the shaft 15A so as to face forward, a protective case 16 for the motor 15 is installed in the rear wall 12, and the case 16 is fixed with screw holes on the left and right sides of the inner edge. It has a part 16A. On the other hand, while supporting the rear end of the motor 15 on the outer surface of the rear wall 12, the case 16
The fan motor 1 has a plate-shaped support member 17 configured to be coupled through a screw hole of the fixing portion 16A of the fan motor 1
In fixing 5 to the rear wall 12, a support 17A made of an elastic material such as rubber is sandwiched between the fixed portion 16A of the case 16 and the plate-shaped support member 17 to have a vibration-proof function. There is something like this.

In addition to this, Japanese Utility Model Publication Sho 58
In the motor attachment device of No. 136936 (1983.9.14), a vibration absorbing cushion for a motor is formed in two parts, one cushion is formed with a cylindrical portion, and the other cushion is fitted with the cylindrical portion. Forming a through hole to be combined,
Insert the divided cushion through the motor mounting angle,
It is disclosed that a motor is fixed to an angle by a fixing screw, and further, Japanese Utility Model Publication Sho 63-7.
No. 4046 (1988.5.17) has a motor mounting device having a plurality of mounting pieces having mounting holes at the lower end of the motor case, and mounting holes at positions facing the mounting holes of the motor. The mounting base and the elastic support member having at least a double groove in a direction orthogonal to the axial direction are provided. The motor mounting hole is formed in the first groove of the elastic support member, and the second mounting hole is formed in the second groove. There is disclosed a motor mounting mechanism in which the mounting hole of the mounting substrate is engaged with the groove of (1) to mount the motor on the mounting substrate.

Furthermore, Japanese Utility Model Publication Sho 58-7
No. 5453 (1983.5.21) anti-vibration structure for a fan motor, the fan motor 15 mounted on a casing has a plurality of mounting projections protruding from the casing, and mounting holes are formed on the mounting projection. A structure is disclosed in which a vibration damping member is externally fitted to the protrusion, a fan motor bracket is mounted on the vibration damping member, a mounting screw is screwed into the mounting hole, and the fan motor is elastically held in the casing.

However, when looking at the above-mentioned conventional structure,
In the structure fixed to the fan motor shown in FIG. 5,
A case 16 having a fixing member 16A in which a fixing member has a screw hole, and a plate-shaped supporting member 17 connected to the case 16.
And the support member 17A made of an elastic material such as rubber that is forcibly inserted between them, the structure is complicated and the assembly work is troublesome. Since the upper diameter is smaller than the diameter of the body, the support member is easily separated by pulling it from the outside, which causes inconvenience of not performing a supporting function.

Further, Japanese Utility Model Publication Sho 58-1
In the motor mounting structure of No. 36945, the cushion is divided into two, and a cylindrical portion is formed on one cushion.
The other cushion is formed with a through hole into which the cylindrical portion can be inserted, and is fixed to a predetermined screw hole of the motor mounting angle with the cushion. Since a screw is required, there is a troublesome problem in the assembling work.

Furthermore, Japanese Utility Model Publication Sho 63-7
In the motor mounting mechanism of No. 4046, a motor having a plurality of mounting holes at the lower end of the motor case, a mounting board having holes at positions inwardly of the mounting holes of the motor,
At least a groove therein has an elastic supporting member that is mounted at a right angle to the axial direction, the motor mounting hole is provided in the first groove of the elastic supporting member, and the mounting substrate is provided in the second groove. The motor is elastically mounted by engaging the mounting holes. In this hole, the work of engaging the motor mounting hole and the board mounting hole in the groove of the elastic support member is also troublesome, and it is not possible to provide a stable fixing property. There was a problem such as leaving the groove.

In such a conventional technique, it can be known that the anti-vibration rubber is an essential element for anti-vibration of the fan motor. However, the use of anti-vibration rubber not only increases the number of parts, but when the anti-vibration rubber is used for a long time, its elasticity is deteriorated due to a deterioration phenomenon, and due to such elasticity decrease, it is connected to the motor body. There has been a problem that the coupling and the like are loosened and the vibration isolation effect on the fan motor is reduced.

In addition, in the structure in which the anti-vibration rubber is interposed in the middle, there is a problem that the anti-vibration rubber itself and its attachment site must be processed when the anti-vibration rubber is attached. From this point of view, it can be seen that if the use of anti-vibration rubber or elastic members can be eliminated, the man-hours for processing parts and the man-hours for mounting can be reduced.

Further, it is for vibration isolation of the fan motor and the like, and focusing on the point that the fan motor is installed in the support case, the fan motor is firmly fixed in the support case so as not to move. With such a configuration, it can be known that vibration of the fan motor can be blocked in advance.

[0012]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fan motor structure for fixing a fan motor in cooperation with the entire surface of a fan motor protective casing. A further object of the present invention is to provide a fan motor structure which is an integral molding of a synthetic resin material capable of absorbing some vibration of the fan motor in cooperation with the protective casing of the fan motor. is there.

[0013]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, a fan motor fixing structure for a refrigerator / freezer of the present invention is of a flat type having a protection portion projecting inward to support a rear surface of a motor. Supporting means, and an inclined portion extending from both ends of the supporting means so that the flat supporting means faces the rear surface of the motor and is projected to have the protective portion.
A fixing means extending from the lower portion of the inclined portion and fixed to the rear wall in cooperation with the motor case;
The supporting means, the inclined portion and the fixing means are combined with each other to enhance the supporting strength of the rear wall of the motor when fixed to the rear wall. Characterized by making it possible.

[0014]

According to the fan motor fixing structure of the refrigerator / freezer of the present invention, the fan motor fixing structure of the refrigerator is integrally formed of a molded product of synthetic resin, and is inserted into the rear wall of the front wall of the refrigerator. Since it is connected to a fan motor case, which should have one or more fasteners having screw holes in the middle, noise and vibration can be prevented.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be specifically described below with reference to the accompanying drawings. FIG. 2 shows a perspective view of a fixing member of a fan motor according to an embodiment of the present invention, FIG. 3 shows a plan view of the fixed state of the fan motor, and FIG. 4 shows an enlarged plan view of its main part. ing.

As usual, the fan motor case 46 covers and protects the front of the motor 45, and its front surface has a structure for firmly supporting the front surface of the fan motor 45, and is adjacent to the periphery of the cylindrical surface at the rear end. One or more fasteners 46A coupled to the rear wall 42 of the refrigerator at predetermined positions.
Is formed. A screw hole 38 is formed in the center of the fixing structure so as to be coupled with the fixing structure.

In the drawings, the fixed structure 47 of the fan motor of the present invention is formed by injection molding of synthetic resin, a protection portion 31 at the end of the shaft is projected at the center thereof, and a flat plate portion 32 is provided around it. , The left and right surfaces are provided with a bracket portion 35, which is symmetrical with respect to the inclined end portion 34 contacting the end portion 33, at a predetermined distance from the shaft end portion protection portion 31, so that the fan motor body is protected. A plane edge portion 37 that is parallel to the flat plate portion 32 and contacts the end portion 36 of the inclined portion 34 is formed, and at the same time as the central position of the plane edge portion 37, at the same time, a fixture 46A formed on the motor case. Support protrusion 3 having support holes 38 at opposite positions
9 is installed, and the bracket 35 configured in this way
In order to impart strength to both side surfaces 40 and 41 of the flat edge portion 37, by installing a reinforcing flange portion 43 which is vertically bent outward, a simple and unillustrated screw nail can be used to fix the fixture 46A. By using the support protrusions 39, the rear wall 42 can be sandwiched easily and firmly, and the motor case 46 and the motor fixing structure 47 can be assembled and installed.

That is, the fixing structure 47 is formed by integrally molding the flat surface portion 32, the bracket portion 35 of the inclined portion 34, the flat surface edge portion 37, and the support protrusion 39 by injection molding. As can be seen here, the flat portion 32 accommodates and supports the rear portion of the fan motor 45 together with the inclined portion 34, or interposes a separate anti-vibration rubber 49 so that the flat portion 32 can absorb vibration during operation of the fan motor. Becomes

The flat edge portion 37 is supported so as to face the rear wall 42, protrudes into the rear wall 42, and is fixed to the fixing member 46 of the case 42.
When the cylindrical support protrusion 39 fitted with A is projected and the fixture 46A of the case 2 is inserted into the cylindrical support protrusion 39, the screw 48 or the like is screwed into the screw hole 38 of the fixture 46A. The intended hole is perforated.

The reinforcing flange portion 43 is formed so as to increase the joint strength of the flat surface portion 32, the inclined portion 34 and the flat surface edge portion 37 and the like, and further enhance the support strength when the rear end portion of the fan motor 45 is connected. Is. Therefore, the fan motor 45, the front surface of which is supported by the case 46, can be supported by the fixed structure 47 so that the rear surface of the fan motor 45 never moves. The present invention is not limited to the above embodiment, and can be modified as necessary.

[0021]

[Effects of the Invention] The fan motor thus installed is extremely easy to install. Furthermore, since the bracket is integrally molded by injection molding of a synthetic resin material, it not only has a long life, but also has vibration resistance. And the noise resistance characteristics have a great effect.

[Brief description of drawings]

FIG. 1 is a partial schematic view showing a fan motor installation state of a general refrigerator.

FIG. 2 is a perspective view of a fan motor support member according to an embodiment of the present invention.

FIG. 3 is a plan view showing a fixed state of a fan motor according to an embodiment of the present invention.

FIG. 4 is an enlarged plan view of a main part of FIG. 3;

FIG. 5 is a plan view showing a conventional fan motor fixing structure.

[Explanation of symbols]

 32 plane part 34 inclined part 35 bracket part 37 plane edge part 39 support protrusion part 43 reinforcing flange part 47 fixed structure

Claims (2)

[Scope of utility model registration request] 1. A fan motor fixing structure for fixing a motor in cooperation with a motor case on a rear wall, wherein a means for supporting and fixing the rear surface of the motor has a bracket portion 35 protruding opposite to the rear surface of the motor.
The bracket portion 35 has a flat surface portion 3 which has a protection portion 31 for protecting the end portion of the shaft of the motor, which is projected in the central portion thereof.
2 and inclined portions 34 that are formed on both sides of the flat portion 32 so as to be symmetrical with each other, and have flat edge portions 37 that are formed on both sides of the symmetrical portion so as to be continuous with the bracket portion 35, and the center of each of the flat edge portions 37. The support projection 39 having a hole inside so as to be fitted to the fastening portion of the motor case.
And a reinforcing flange portion 43 formed by vertically bending outward along both side surfaces of the bracket portion 35 and the plane edge portion 37. Fan motor fixed structure. 2. A fixed structure for a fan motor, wherein the fixed structure according to claim 1 is integrally molded with a synthetic resin material.