JPH11191941A - Attachment structure for fan motor and manufacture of its bracket - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of loosening of connection parts between attachment flanges and a base stand and avoid chattering noise caused by the loosening. SOLUTION: A fan motor is attached to a bracket 9 with two opposite facing leg parts 17 and 17 and attachment flanges 10 and 10 formed on the lower end sides are fixed to a base stand. This attachment structure is characterized in that the tip side of one of the attachment flanges 10 and 10 is inserted into a holder 18 provided on the base stand 3 and the tip side of the other flange 10 is made to rise from a root part by a predetermined angle and fixed to the base stand 3 with a screw member 8. As a result of this constitution, loosening after attachment can be avoided by the spring effect of the attachment flange 10. That is, a chattering noise can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a cooling fan motor or the like in a condenser of a refrigerator to a base, and a method of manufacturing a bracket for mounting the same.

[0002]

2. Description of the Related Art In the prior art, an ice making machine will be described as an example. Generally, an ice making machine is provided with an ice making section at an upper portion of a machine body, an ice storage section at a lower portion, and a machine section at a lower portion. A chamber is formed. On the front side of the machine room (on the front side of the ice making machine body), a condenser and an electrical box are arranged, a fan motor is arranged at the back, and a compressor is arranged at the innermost side. I have. Therefore, when the fan motor failed and needed to be repaired, the front panel of the ice machine body was removed, and then the electrical box located on the front side was removed, and the fan motor was attached and detached in that state. . In other words, with the condenser still attached to the base, loosen the screw member attaching the fan motor from the narrow gap after removing the electrical box, then pull out the fan motor for repair, and then Later, the fan motor was assembled in the reverse manner. Therefore, it is desired that the mounting structure of the fan motor is simple. Conventionally, the fan motor 2 is mounted on the bracket 1 as shown in FIGS. Is fixed to the base 3.

As shown in FIG. 1, a bracket 1 has a U-shape in plan view, and has two legs 4a and 4b forming opposing surfaces, and a fan connecting the legs 4a and 4b to each other. It comprises a motor mounting portion 5, and mounting flanges 6a and 6b for fixing the bracket 1 to the base 3 are formed at lower ends of both legs 4a and 4b. One of the mounting flanges 6a is engaged with the cut-and-raised piece 7 of the base 3 so that the concave portion formed at the center thereof is sandwiched between the cut-and-raised piece 7 and the base 3. Has become. The other mounting flange 6b is fixed to the base 3 with a screw member 8.

[0004]

However, in the conventional mounting structure of the fan motor 2 using the bracket 1, the mounting flange 6a rises from the base 3 depending on the work of the mounting operator, and the cut-and-raised piece. There was a rattling between 7 and 7. This is because the installation work of the fan motor 2 must be performed in the machine room formed on the lower side of the ice making machine as described above. The operation must be performed on the back side of the condenser from the limited space from which the electrical box is removed, and the operation itself is very difficult. Therefore, rattling of the mounting flange 6a cannot be avoided. Due to this rattling, chatter vibration occurs when the fan motor 2 is driven,
There was a drawback that it became an unusual chatter sound.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems and has been improved and eliminated. The present invention provides a mounting structure and a bracket thereof which do not cause rattling at a joint between a mounting flange and a base. It is intended to provide a method for producing the same. Means of claim 1 adopted by the present invention to solve the above problem is to attach a fan motor such as a condenser of a refrigerator to a bracket having two opposing legs,
In a fan motor mounting structure in which a mounting flange formed on the lower end side of the leg portion of the bracket is fixed to a base, one end of one mounting flange is inserted into a holder provided on the base , and the other mounting side is mounted. A fan motor mounting structure characterized in that the distal end side of the flange is raised to a predetermined angle with respect to a root portion and fixed to a base with a screw member. Since the tip of the other mounting flange is raised so as to be higher than the root by a predetermined angle, the mounting flange has a spring effect and does not rattle after mounting. That is, it is possible to prevent occurrence of chatter vibration.

The means of claim 2 adopted by the present invention is as follows:
2. The fan motor mounting structure according to claim 1, wherein the tip side of the mounting flange inserted into the holder is also raised up by a predetermined angle with respect to the root. 3. In this way, the mounting flange can be raised so that both the holder side and the screw fixing side have a predetermined angle higher with respect to the root, and in this case, a spring effect is obtained with both mounting flanges. Can be

The means of claim 3 adopted by the present invention is as follows.
Fan motor mounting, which has a U-shape in plan view and includes a leg which is an opposing surface and a fan motor mounting portion for connecting the legs, and a mounting flange is formed on each of the opposing legs. A method of manufacturing a bracket for a vehicle, comprising cutting out unnecessary portions from a flat sheet metal, bending the mounting flanges of both legs at a time so as to have the same angle, and forming the entire portion into an L shape, and finally forming both legs. A method for manufacturing a fan motor mounting bracket, characterized in that a boundary between the fan motor mounting portions is bent at a time and formed in a U-shape in plan view. By bending the mounting flanges of the two leg portions at a time in this manner, the standing angles of the two mounting flanges can be made the same, and the two mounting flanges can reliably exhibit the spring effect.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the embodiments of the invention shown in the drawings. FIGS. 1 and 2 relate to the first embodiment of the present invention. FIG. 1A is an exploded perspective view showing the mounting relationship between the bracket 9 and the base 3, and FIG. Mounting flange 1
FIG. 2A to FIG. 2C are partially enlarged views of the base 0 and the base 3.
7A and 7B are a plan view and a perspective view illustrating a manufacturing process of the bracket 9. A method for manufacturing the bracket 9 will be described with reference to FIG. First, as shown in FIG.
1 is prepared, punched into a predetermined shape, and an unnecessary portion is cut off. The punching is performed by, for example, forming one mounting flange 10 on both side surfaces of a portion where one mounting flange 10 is to be formed so that the front end side becomes thinner.
Cut at an angle of 5 degrees to form tapered surfaces 10a, 10a. Also, a mounting hole 12 for a fan motor (not shown) is provided.
And a screw hole 13 for mounting the same and a screw hole 14 for mounting the bracket, and further, cuts 16, 16 are formed at the boundary between the fan motor mounting portion 15 of the bracket 9 and the mounting flanges 10, 10. .

Next, as shown in FIG. 1B, the areas where two opposed mounting flanges 10 and 10 are to be formed are simultaneously and simultaneously formed by the same angle with respect to the sheet metal body after punching. Bend to form an L-shape as a whole.
This bending angle is determined by the mounting flanges 10, 1 after molding.
The tip of 0 is higher than its root by about 1.5 to 2 degrees. Finally, the fan motor mounting part 15
And the boundary between the legs 17, 17 on both sides thereof (Figure (A)
And the dotted line in FIG. 8B) may be bent 90 degrees at a time. Thus, the bracket 9 having a U-shape in a plan view is formed. The width of the mounting flanges 10, 10 is formed to be wider by the dimension d than the width of the legs 17, 17.

[0010] The bracket 9 manufactured in this manner.
Is attached and fixed to the base 3 in the manner shown in FIG.
That is, first, the holder 18 attached to the base 3
Mounting flange 10 having tapered surfaces 10a, 10a
Insert. At this time, the tapered surfaces 10a, 10a are guided by a similar tapered surface of the holder 18 to have a function of smoothing the insertion operation and a function of positioning the bracket 9 at the same time as the insertion. Attachment may be performed by inserting an attachment screw 8 into a screw hole 14 provided at the other end of the attachment flange 10 and fixing it to the base 3. At this time, since the mounting flanges 10 and 10 are formed so that the front end thereof is higher than the root by a predetermined angle toward the outside, it has a so-called spring effect, and a gap is formed in the holder 18. Without being formed, it is attached to the base 3 in close contact. Therefore, chatter vibration does not occur during use, and abnormal chatter noise does not occur. The width of the mounting flanges 10, 10 is set to be wider by the dimension d than the width of the legs 17, 17, and the mounting to the base 3 is stabilized by that much.

FIG. 3 shows a second embodiment of the present invention. FIG. 3 (A) is an exploded perspective view showing a mounting relationship between a bracket 19 and a base 3, and FIG. 3 (B) is a mounting flange. 10
FIG. 3 is a partially enlarged view of a base and a base. In this embodiment,
The width of the mounting flanges 10 is the same as the width of the legs 17. The other configuration and operation and effect are the same as those of the first embodiment.

FIG. 4 relates to a third embodiment of the present invention. FIG. 4A is a perspective view showing a bracket 20, and FIG. 4B is a perspective view showing the mounting flange 10 and the base 3. As shown in FIG. FIG. In this embodiment, the mounting flange 10 on the side to be inserted and fixed in the holder 18 is bent toward the inside of the leg 17. The direction in which the other mounting flange 10 is bent is the same as in the first and second embodiments, that is, the outer direction opposite to the holder 18. Similarly to the first and second embodiments, the bending angle is set so that the tip of the mounting flange 10, 10 after molding is higher than the root by about 1.5 to 2 degrees. I have. In addition, both end side surfaces of the mounting flange 10 bent inwardly of the leg portion 17 are cut at an angle of, for example, 15 degrees so that the front end side becomes thin, and the tapered surface 10 is formed.
a, 10a.

The mounting of the bracket 20 of this embodiment is as shown in FIG.
The taper surfaces 10a, 10a
Insert the mounting flange 10 formed with a. At this time, the tapered surfaces 10a, 10a are guided by the same tapered surface of the holder 18 to have a function of smoothing the insertion operation, and a function of positioning the bracket 9 at the same time as the insertion. Attach the other mounting flange 1
The mounting screws 8 may be inserted into the screw holes 14 provided on the base 3 and fixed to the base 3. At this time, the mounting flange 1
Since 0 and 10 are formed so that their tip portions become higher by a predetermined angle, they have a so-called spring effect, and are attached to the base 3 in close contact with each other without forming a gap in the holder 18. Therefore, chatter vibration does not occur during use, and abnormal chatter noise does not occur.

Incidentally, the present invention is not limited to the above-described embodiment, but can be appropriately changed. For example, the case where the width of the flanges 10 and 10 is the same as the case where the width of the flanges 10 and 17 is larger than the width of the legs 17 and 17 has been described.
Even if it is smaller than 7, 17, the flange 10,
Due to the spring effect of 10, mounting without generating chattering is possible. The width of these flanges 10, 10 can be changed by changing one of the flanges 1 shown in FIG.
The same applies to the case where 0 is bent toward the inside of the leg 17.

Further, in the present invention, the fourth type shown in FIG.
As in the embodiment, at least the flange 10 to be fixed using the screw 8 is bent outward in a direction opposite to the holder 18 so that the distal end thereof is higher than the root by a predetermined angle. In this case, the above-described spring effect can be obtained.
In other words, the spring effect allows mounting of the fan motor mounting bracket without generating chattering noise. The effect of giving the whole spring effect by raising the tip end side of this one side flange 10 by a predetermined angle with respect to the root portion is the same as that of the holder 1.
Even when only the front end side of the flange 10 to be inserted into the side 8 is similarly configured, the same can be obtained.

[0016]

As described above, in the present invention,
At least one end of the mounting flange of both legs is raised so as to be higher than the root by a predetermined angle, so that the mounting flange has a spring effect and does not rattle after mounting. That is, it is possible to prevent occurrence of chatter vibration.

Further, in the present invention, unnecessary portions are cut out from the flat plate-shaped sheet metal, and the mounting flanges of both legs are bent at once so as to have the same angle to form an entire L-shape. Since the boundary between the parts and the fan motor mounting part is bent at a time and formed in a U-shape in a plan view, the standing angles of both mounting flanges can be made the same, and both mounting flanges can be It is possible to reliably exert the spring effect.

[Brief description of the drawings]

FIG. 1 relates to a first embodiment of the present invention,
FIG. 1A is an exploded perspective view showing an attachment relationship between a bracket and a base, and FIG. 2B is a partially enlarged longitudinal sectional view showing an attachment relationship between an attachment flange and a base.

FIGS. 2A and 2B show a manufacturing process of the bracket according to the first embodiment of the present invention. FIG. 2A is a plan view showing a punching process from a sheet metal, and FIG. 2B is a bending process of a mounting flange. And FIG. (C) is a perspective view showing a step of bending a boundary portion between the leg portion and the fan motor mounting portion.

FIG. 3 relates to a second embodiment of the present invention,
FIG. 1A is an exploded perspective view showing an attachment relationship between a bracket and a base, and FIG. 2B is a partially enlarged longitudinal sectional view showing an attachment relationship between an attachment flange and a base.

FIG. 4 relates to a third embodiment of the present invention,
FIG. 1A is an exploded perspective view showing a bracket, and FIG. 1B is a partially enlarged longitudinal sectional view showing an attachment relationship between an attachment flange and a base.

FIG. 5 is a partially enlarged longitudinal sectional view showing a mounting relationship between a mounting flange and a base according to a fourth embodiment of the present invention.

6 (A) is a partial longitudinal sectional front view showing a state after mounting a bracket, FIG. 6 (B) is a side view thereof, and FIG. 6 (C) shows a mounting flange cut and raised. It is a top view which shows the relationship with a piece.

[Explanation of symbols]

2 ... Fan motor, 3 ... Base, 9 ... Bracket, 1
0, 10: mounting flange, 10a, 10a: tapered surface, 11: sheet metal, 12: fan motor mounting hole, 14
... Screw hole, 15 ... Fan motor mounting part, 16 ... Cut, 17 ... Leg, 18 ... Holder, 19 ... Bracket,
20… Bracket

Claims (3)

[Claims] A fan motor, such as a condenser of a refrigerator, is mounted on a bracket having two opposing legs, and a mounting flange formed on the lower end side of the legs of the bracket is fixed to a base. In the mounting structure of the fan motor, one end of the mounting flange is inserted into a holder provided on the base, and the other end of the mounting flange is raised so as to be higher by a predetermined angle with respect to the base, and the screw member is formed. The mounting structure of the fan motor, characterized by being fixed to the base with. 2. The mounting structure for a fan motor according to claim 1, wherein the front end of the mounting flange inserted into the holder is also raised up by a predetermined angle with respect to the root. 3. A U-shape in plan view, comprising a leg which is a facing surface, and a fan motor mounting portion for connecting the legs, and a mounting flange is formed on each of the opposing legs. A method of manufacturing a bracket for mounting a fan motor, wherein unnecessary portions are cut out from a flat sheet metal, and mounting flanges of both legs are bent at once so as to have the same angle to form an entire L-shape. A method of manufacturing a bracket for mounting a fan motor, wherein the boundary between the two legs and the fan motor mounting portion is bent at a time to form a U-shape in plan view.