JPS6216751Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a fixture for a motor used, for example, in a blower of an air conditioner for an automobile.

(Prior Art) A conventional fixture for this type of motor is shown in FIGS. 1 and 2. As shown in the figure, the motor M includes an elastic member 2 attached to a bracket 1 forming the outer shell, a washer 3 placed on the upper end of the elastic member 2, and a washer 3 mounted inside the elastic member 2. It is attached to the base plate 6 by screwing the bolt 5 through the collar 4 into a nut 7 embedded in the base plate 6 constituting the scroll of the fan.

(Problems to be solved by the invention) However, in the conventional fixing device as described above, the number of parts such as the collar 4 and the nut 7 increases, and the collar 4 is made as a separate part and is installed in the elastic member in advance. Therefore, the assembly time becomes longer, and when the motor M is attached to the board 6, the holes in the bracket 1, the elastic member 2, and the board 6 of the motor M do not match well, and the holes cannot be properly aligned. There were some shortcomings. Furthermore, it is conceivable to provide a positioning guide on the board 6, but since it is necessary to take into account the change in the shape of the elastic member 2 after tightening the screws, it is less accurate and requires blind alignment.

The present invention was developed in view of the above points, and by integrating the collar and nut, which were separate parts, and providing them on the board, it solves the conventional problems and allows for reliable and easy motor assembly. The purpose of the present invention is to provide a motor fixture that can be attached and detached.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a motor fixing device for attaching and fixing a motor to a substrate via an elastic member, which includes a bracket forming an outer shell of the motor. An elastic member having a center hole is fitted into a mounting hole formed in the mounting hole, the elastic member is interposed between a washer and the substrate, and the elastic member is fitted into the center hole while protruding from the substrate. a lower half of a sleeve member having an upper half that is fixed in a non-rotatable manner, a female threaded part formed on an inner peripheral side of the sleeve member, and a threaded member that has a head that engages with the washer. It is characterized in that it is threadedly engaged with the female threaded part.

(Function) In the motor fixing device having the above-described configuration, the upper half of the sleeve protrudes from the base plate, so that the elastic member fitted into the mounting hole formed in the motor bracket can be easily attached. This makes it possible to position the motor on the board easily and reliably. Additionally, since the collar, which was previously required as a separate component, is no longer required, it also contributes to reducing the number of parts.

(Example) Hereinafter, an example will be described in which the present invention is applied to a blower of an automobile air conditioner shown in the drawings, and the same members as those shown in Figs. 1 and 2 are given the same reference numerals. . The fixture 10 shown in FIG. 3 has a fan scroll with a built-in fan 11 as a base plate 6, and a bracket 1 of a motor M on this base plate with an elastic member 2.
etc., to attach it.

That is, this fixture 10 is attached to the bracket 1.
An elastic member 2 is fitted into the mounting hole 1a, a washer 3 is placed on the top of the elastic member 2, and the upper half Sa of the sleeve member S is fitted into the center hole 12. A notch 14 is provided at the inner edge of the top of the center hole of the elastic member 2, and a threaded member 5 (hereinafter simply referred to as "bolt 5") in the shape of a columnar head having a head that engages with the washer 3 is provided. This serves as a relief for the elastic member 2 when tightening. The lower half Sb of this sleeve member 3 is the substrate 6
It is fixed so that it cannot rotate. For example, as this rotation prevention, the lower end large diameter portion Sc of this sleeve member S is used.
Measures are taken such as making it square.

In particular, the female threaded portion 13 formed on the inner circumferential surface of the sleeve member S is formed in the upper half portion Sa. Therefore, when tightening is performed using the bolt 5, the length l of the bolt 5 may be short, and the tip of the bolt 5 does not protrude from the board 6. In addition, conventionally, in order to fully screw the bolt 5, the nut 7 is
As the thickness of the substrate 6 increases, the thickness of the substrate 6 also increases, but this thickness can be reduced with the device according to the present invention.
Therefore, when high-speed air flows inside the scroll, the height of the mounting body is small.
Since the tip of the bolt 5 does not protrude into the air flow path, no wind noise is generated, and the bolt 5 does not increase air flow resistance.
Further, the distance between the fan and the substrate 6 as shown in FIG. 1 can be reduced.

In the above structure, the elastic member 2 is fitted into the mounting hole 1a of the bracket 1, and the sleeve member S protruding from the substrate 6 side is inserted into the center hole 12 of the elastic member 2.
By fitting the upper half part Sa, the hole can be easily positioned, and then the bolt 5 is simply screwed into the female threaded part 13 to complete the installation. Since this tightening is regulated by the tip of the upper half Sa of the sleeve member S, it is pressed with a constant tightening force without reducing the cushioning properties of the elastic member 2, thereby maintaining the elasticity of the elastic member 2 at a constant level. It is possible to absorb vibrations from the motor M and prevent vibrations from being transmitted to the substrate 6.

In particular, the bracket 1 for the motor M has three mounting holes 1a, and the positioning and tightening work, which is performed three times for each motor M, can be performed very easily.

FIG. 4 shows another embodiment of the present invention, in which the lower end large diameter portion Sc of the sleeve member S is embedded and fixed within the substrate 6.

FIG. 5 shows still another embodiment of the present invention, in which the female threaded portion 13 is connected to the lower half Sb of the sleeve member S.
It was formed in

Both of these embodiments are effective when installation cannot be performed without increasing the bolt length l.

Note that the present invention is applicable not only to the blower of the above-mentioned automobile air conditioner, but also to the attachment of various motors and structures that prevent the transmission of vibrations. Further, the mounting hole 1a of the bracket 1 may be not only a simple round hole but also a partially cut-out hole, and the upper half 5a of the sleeve member 5 may be not only a straight hole but also an inclined hole.

(Effects of the invention) As described above, in this invention, the upper half of the sleeve member is structured to double as a conventional collar, so it is possible to eliminate the conventional collar and reduce the number of component parts. become. In addition, since the upper half of the sleeve member according to the present invention protrudes from the board when attached to the board, positioning work when attaching the motor to the board is facilitated.
The motor installation work becomes easy and reliable. Furthermore, since a female threaded part is formed on the inner circumferential side of the sleeve member having an upper half protruding from the board, the thickness of the board to which the lower half of this sleeve member is fixed is determined by the length of the female threaded part. Since the length can be shortened without being limited by the length, it also contributes to thinning of the board.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional explanatory diagram showing a state in which a motor fixing device is applied to a blower, Fig. 2 is a vertical cross-sectional view of a conventional motor fixing device, and Fig. 3 is a longitudinal cross-sectional view showing an embodiment of the present invention. , 4 and 5 are longitudinal sectional views showing other embodiments of the present invention. DESCRIPTION OF SYMBOLS 1... Bracket, 2... Elastic member, 5... Bolt, 6... Board, 10... Fixing tool, 11... Fan, 12... Center hole, 13... Female threaded part, S...
...Sleeve member, M...Motor.

Claims (1)

[Claims for Utility Model Registration] 1. In a motor fixture for attaching and fixing a motor M to a substrate 6 via an elastic member 2, a mounting hole 1a formed in a bracket 1 forming an outer shell of the motor M, Elastic member 2 having a center hole 12
The elastic member 2 is interposed between the washer 3 and the substrate 6, and the elastic member 2 is inserted into the substrate 6.
A lower half Sb of the sleeve member S has an upper half Sa that projects from the center hole 12 and fits into the center hole 12.
A female threaded part 13 is formed on the inner peripheral side of the sleeve member S, and a threaded member 5 having a head that engages with the washer 3 is screwed into the female threaded part 13. A motor fixture characterized by a combination of: 2. The motor fixture according to claim 1, wherein the female threaded portion 13 is formed on the inner peripheral side of the upper half portion Sa of the sleeve member S.