JPH0559000U - Vibration isolation mechanism for fans - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the vibration generated during fan rotation from being directly transmitted to the fan bracket. [Structure] By sandwiching a grommet 1a and a collar 1b between a fan 1 and a fan bracket 2, vibration generated during rotation of the fan 1 is damped by the grommet 1a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vibration isolation mechanism against vibration generated during rotation of a fan.

[0002]

[Prior Art]

 In the conventional fan structure, the fan 1 is directly attached to the fan bracket 2 by the screw 4, as shown in FIG.

[0003]

[Problems to be solved by the device]

 In the past, since the fan 1 and the fan bracket 2 were in direct contact with each other, the vibration generated during the rotation of the fan 1 was directly transmitted to the fan bracket 2.

An object of the present invention is to provide a vibration damping mechanism for a fan, which prevents vibration generated during rotation of the fan from being transmitted to the fan bracket.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a vibration damping mechanism of a fan according to the present invention is a vibration damping mechanism of a fan having a grommet and a collar, wherein the grommet and the collar are located between the fan and the fan mounting portion. The grommet damps the vibration generated during the rotation of the fan, and the collar keeps the deformation of the grommet constant during compression.

[0006]

[Action]

 As shown in FIG. 1, the grommet 1a and the collar 1b are sandwiched between the fan 1 and the fan bracket 2, and the vibration generated from the fan 1 is damped by the grommet 1a.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are sectional views showing a vibration isolation mechanism according to an embodiment of the present invention.

As shown in FIG. 4, the fan 1 is mounted in the fan bracket 2 using mounting holes A, B, C, D and screws, and the fan bracket 2 is mounted in the housing 3 as mounting holes E, F. Mounted with a screwdriver.

FIG. 1 shows a mounting structure of the fan 1 on the fan bracket 2 according to the present invention. That is, the grommet 1a is inserted into the mounting hole 1d of the fan 1, the collar 1b is fitted into the inner diameter side of the grommet 1a, and the screw 1c is screwed into the mounting holes A, B, C and D through the collar 1b.

Then, the grommet 1 a and the collar 1 b are sandwiched between the fan 1 and the fan bracket 2, and the screw 1 c is tightened to attach the fan 1 to the fan bracket 2. Here, the collar 1b suppresses the deformation of the grommet 1a due to the compression to a certain amount.

With the above configuration, the fan 1 and the fan bracket 2 do not come into direct contact with each other, and the grommet 1 a is interposed therebetween, so that the vibration due to the rotation of the fan 1 is attenuated by the grommet 1 a and transmitted to the fan bracket 2. Suppress the.

FIG. 2 shows a mounting structure of the fan bracket 2 to the housing 3 according to the present invention. This mounting structure applies the mounting structure shown in FIG.

That is, the grommet 2a is inserted into the mounting hole 2d of the fan bracket 2, the collar 2b is fitted into the inner diameter side of the grommet 2a, and the screw 2c is screwed into the mounting holes E and F through the collar 2b.

Then, the grommet 2 a and the collar 2 b are sandwiched between the fan bracket 2 and the housing 3, and the screw 2 c is tightened to attach the fan bracket 2 to the housing 3. Here, the collar 2b suppresses the deformation of the grommet 2a due to the compression to a certain amount.

Similarly, when fixing the fan bracket 2 to the housing 3, the grommet 2a, the collar 2b, and the screw 2c are inserted in this order as shown in FIG. By fixing to 3, it is possible to further improve the anti-vibration property.

[0016]

[Effect of the device]

 As described above, the present invention has an effect that the grommet and the collar are sandwiched between the fan and the fan mounting portion when the fan is mounted, and the vibration generated during the rotation of the fan can be damped by the grommet.

[Brief description of drawings]

FIG. 1 is a sectional view showing a vibration isolation mechanism according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a vibration isolation mechanism according to an embodiment of the present invention.

FIG. 3 is a diagram showing a conventional example.

FIG. 4 is a view showing a mounting state of a fan and a fan bracket.

[Explanation of symbols]

 1 Fan 1a, 2a Grommet 1b, 2b Collar 1c, 2c Screw 2 Fan bracket 3 Housing

Claims (1)

[Scope of utility model registration request] 1. A vibration isolation mechanism for a fan having a grommet and a collar, wherein the grommet and the collar are sandwiched between the fan and a fan mounting portion, and the grommet is provided while the fan is rotating. A vibration damping mechanism for fans, which is designed to damp vibrations that occur and to keep the deformation of the grommet during compression constant.