Mounting structure of motor

Abstract

The utility model discloses a mounting structure of a motor, which is characterized in that a protective cover plate covering a motor mounting cavity is utilized, and when the cover plate is fixed in the motor mounting cavity, a damping gasket is tightly pressed on a supporting structure of the motor mounting cavity by the cover plate, so that the motor mounting cavity can be firmly fixed; the damping gasket can be fixed in the motor installation cavity together with the cover plate by means of the fixing screw of the cover plate, the damping gasket does not need to be locked by means of a gasket, and the installation structure of the motor is simplified.

Description

Technical Field

[0001] This utility model relates to the technical field of motor installation, and in particular to a motor installation structure. Background Technology

[0002] In the existing technology, air purifiers have certain requirements for operating noise. The motor will generate a certain amount of vibration noise during operation. In order to reduce the impact of this noise, vibration damping pads are usually installed at the screw positions of the motor bracket to reduce the vibration generated by the motor on the motor fixing structure, thereby reducing the noise when the purifier is in use.

[0003] As a buffer component, vibration damping pads also require screw tightening. To increase the contact area between the screw and the damping pad, the main tightening method currently used is to fix it with a washer screw, as shown in the motor fixing device disclosed in CN205029486U. With the increase in motor power in air purifiers, the requirements for vibration damping also increase. This necessitates the use of larger-sized vibration damping pads to reduce the vibration noise generated by the motor. Since the washer portion of the washer screw cannot effectively fix the vibration damping pad, an additional large washer is needed to compress it. Of course, some systems also use ordinary screws with a large washer for fixing.

[0004] The disadvantage of this fixed structure is that an additional shim is required, which makes it inconvenient to install and fix the motor. Utility Model Content

[0005] In view of the problems existing in the prior art, the main purpose of this utility model is to provide a motor mounting structure that is simple in structure and can achieve the fastening of the shock-absorbing pads without the need for additional shims.

[0006] To achieve the above objectives, the motor mounting structure includes a motor mounting cavity and a motor bracket. The motor body is mounted in the motor mounting cavity via the motor bracket, and shock-absorbing pads are provided on the fixing feet of the motor bracket. The characteristic feature is that a cover plate is provided at the opening of the motor mounting cavity, and the cover plate presses the shock-absorbing pads and is locked onto the motor mounting cavity by fasteners.

[0007] In some alternative embodiments, the back of the cover plate has a groove corresponding to the shock-absorbing pad.

[0008] In some alternative embodiments, the groove is provided with a through hole for the fastener to pass through.

[0009] In some alternative embodiments, the front of the cover plate is provided with a receiving groove corresponding to the position of each of the pressing grooves.

[0010] In some alternative embodiments, the front side of the cover plate is curved.

[0011] In some alternative embodiments, the cover plate is provided with heat dissipation holes.

[0012] In some alternative embodiments, the outer peripheral wall of the cover plate has a clearance opening corresponding to the shock-absorbing pad.

[0013] In some alternative embodiments, the cover plate has an axial protrusion on the outer periphery of its back side, the outer diameter of which is smaller than the outer circumference of the cover plate.

[0014] In some alternative embodiments, the mounting feet of the motor bracket have mounting holes with a notch.

[0015] In some alternative embodiments, the motor mounting cavity has an internal support structure, the support structure is provided with a support column, and the shock-absorbing pad is sleeved on the support column.

[0016] Compared with the prior art, the present invention provides a motor mounting structure. By using a protective cover plate that seals the motor mounting cavity, the cover plate is used to press the shock-absorbing pads onto the support structure of the motor mounting cavity while the cover plate is fixed in the motor mounting cavity. In this way, the shock-absorbing pads can be fixed in the motor mounting cavity together with the cover plate using the fixing screws of the cover plate, without the need to use the pads to lock the shock-absorbing pads, thus simplifying the motor mounting structure. Attached Figure Description

[0017] Figure 1 A three-dimensional schematic diagram of an air duct assembly provided for an embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the support structure in the motor mounting cavity;

[0019] Figure 3 A schematic diagram of the cross-section of the motor and the motor mounting cavity;

[0020] Figure 4 This is a schematic diagram of the cover plate structure;

[0021] Figure 5 This is a schematic diagram of the motor bracket. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Reference Figure 1-2This utility model embodiment proposes a duct assembly 10, which includes a motor mounting cavity 11. The motor mounting cavity 11 is suspended within the duct assembly via four connecting arms. A motor 20 is mounted within the motor mounting cavity 11, and a motor bracket 21 is mounted at the output end of the motor 20. The motor bracket 21 is fixedly connected to the motor housing by fastening screws. The motor mounting cavity 11 has three support structures 11a, and the motor bracket 21 has three fixing feet corresponding to the three support structures 11a. Each fixing foot is equipped with a shock-absorbing pad 22.

[0024] A cover plate 12 is provided at the opening of the motor mounting cavity 11. The cover plate 12 is used to cover the motor 20 inside the motor mounting cavity 11 and protect the motor 11. The cover plate 12 is locked to the opening of the motor mounting cavity 11 by fasteners and presses the shock-absorbing pad 12 onto the support structure 11a of the motor mounting cavity 11.

[0025] This utility model provides a motor mounting structure. By using a protective cover plate 12 that covers the motor mounting cavity 11, the cover plate 12 is fixed to the motor mounting cavity 11 while simultaneously pressing the shock-absorbing pad 22 onto the support structure 11a of the motor mounting cavity 11. In this way, the shock-absorbing pad 22 can be fixed in the motor mounting cavity 11 along with the cover plate 12 using only the fixing screws of the cover plate 12, without the need for additional pads to lock the shock-absorbing pad 22, thus simplifying the motor mounting structure.

[0026] Reference Figure 4 In this embodiment, three pressure grooves 12a are provided on the back of the cover plate 12, which correspond to the shock-absorbing pads 22 respectively. In this way, while the cover plate 12 is fixed in the motor mounting cavity 11, the pressure grooves 12a can effectively lock the shock-absorbing pads 22, and at the same time, it also facilitates the positioning and installation of the cover plate 12.

[0027] Continue to refer to Figure 4 In this embodiment, a through hole 12b is provided in the pressure groove 12a for the fastener to pass through, and a mounting hole 11c corresponding to the fastener is provided on the support structure 11a. Thus, after the cover plate 12 presses down on the damping pad 22, the fastener is passed through the through hole 12b and the damping pad 22 and then locked in place with the mounting hole 11c. Both the damping pad 22 and the cover plate 12 are fixed in place by fasteners, reducing the number of fasteners and facilitating the locking and fixing of the motor 11.

[0028] In the above embodiment, the fastener is a screw, and the mounting hole 11c is a screw hole.

[0029] Reference Figure 1The front of the cover plate 12 is recessed downwards to accommodate grooves 12c corresponding to the positions of each pressure groove 12a. In this embodiment, the motor 20 is used in the air duct assembly 10. When the motor 20 drives the fan to rotate, it will draw some dust particles from the outside air into the air duct assembly 10. Some particles will be blown towards the cover plate 12 of the motor 20. If the fasteners fixing the cover plate 12 protrude too much from the surface of the cover plate 12, dust particles will easily accumulate in the gap between the cover plate 12 and the head of the fastener, causing the head of the fastener to age faster and affecting the subsequent maintenance of the cover plate 12 and the motor 20. By setting the accommodating grooves 12c, the head of the fastener can be accommodated, avoiding the head of the fastener from protruding too much from the surface of the cover plate 12 and reducing the problem of dust accumulation at the fastener part.

[0030] Furthermore, the front of the cover plate 12 is made into an arc shape to reduce the wind resistance of the cover plate 12.

[0031] Continue to refer to Figure 1 or Figure 4 The cover plate 12 is provided with heat dissipation holes 12d, so that when the motor 12 drives the fan to rotate, some air can be blown from the heat dissipation holes 12d to the motor 20 to dissipate heat from the motor 12.

[0032] Continue to refer to Figure 2 and 4 The outer peripheral wall of the cover plate 12 is provided with a clearance opening 12e corresponding to the damping pad. The damping pad 22 is made of elastic material, which absorbs the kinetic energy generated by the vibration of the motor 20 through deformation. By providing a clearance opening 12e on the peripheral wall of the cover plate 12, a deformation release area is provided for the deformation of the damping pad 22, ensuring the damping effect of the damping pad 22. In addition, the clearance opening 12e also facilitates the inspection of the wear condition of the damping pad 22.

[0033] Continue to refer to Figure 4 The cover plate 12 has an axial protrusion on its outer periphery on the back side, and the outer diameter of the axial protrusion is smaller than the outer periphery of the cover plate. This forms an L-shaped groove 12f on the outer periphery of the cover plate 12, which is used to pre-fix the cover plate 12 to the motor mounting cavity 11, and facilitates the screw tightening of the cover plate 12 and the motor mounting cavity 11.

[0034] Continue to refer to Figure 4 In this embodiment, the cover plate 12 is also provided with a strip-shaped clearance hole 12g to avoid the motor output shaft and the fan blade locking pin on the output shaft. In this way, the cover plate 12 can be disassembled and installed from the output side of the motor 20.

[0035] Reference Figure 5In this embodiment, the mounting feet of the motor bracket 21 have mounting holes 21a, and the mounting holes 21a have a notch 21b. The shock-absorbing pad 22 can be engaged in the mounting hole 21a through the notch 21b, which facilitates the installation and removal of the shock-absorbing pad 22.

[0036] Continue to refer to Figure 2 and Figure 3 A support column 11b is provided on the support structure 11a, and the damping pad 22 is sleeved on the support column 11b. The mounting hole 11c is provided in the support column 11b. The support column 11b can prevent the damping pad 22 from directly contacting the fastener, and prevent the damping pad 22 from transferring the absorbed kinetic energy to the fastener, causing the fastener to loosen.

[0037] It should be noted that the motor mounting structure provided by this utility model is not limited to the application in the air duct components of air purifiers. It can be applied to any scenario that provides shock absorption and protection for the motor.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to be used in accordance with the present utility model. Any minor modifications, equivalent substitutions and improvements made to the above embodiments based on the technical essence of the present utility model should be included within the protection scope of the technical solution of the present utility model.

Claims

1. A motor mounting structure, comprising a motor mounting cavity and a motor bracket, wherein the motor body is mounted in the motor mounting cavity via the motor bracket, and shock-absorbing pads are provided on the fixing feet of the motor bracket; characterized in that, The motor mounting cavity is provided with a cover plate, which presses the shock-absorbing pad and is locked to the motor mounting cavity by fasteners.

2. The motor mounting structure as described in claim 1, characterized in that, The back of the cover plate has a groove corresponding to the shock-absorbing pad.

3. The motor mounting structure as described in claim 2, characterized in that, The groove is provided with a through hole for the fastener to pass through.

4. The motor mounting structure as described in claim 2, characterized in that, The cover plate has a receiving groove on its front side corresponding to the position of each of the pressure grooves.

5. The motor mounting structure as described in claim 1, characterized in that, The front of the cover plate is curved.

6. The motor mounting structure as described in claim 1, characterized in that, The cover plate is provided with heat dissipation holes.

7. The motor mounting structure as described in claim 1, characterized in that, The outer peripheral wall of the cover plate has a clearance opening corresponding to the shock-absorbing pad.

8. The motor mounting structure as described in claim 1, characterized in that, The cover plate has an axial protrusion on its outer periphery of the back side, and the outer diameter of the axial protrusion is smaller than the outer circumference of the cover plate.

9. The motor mounting structure as described in claim 1, characterized in that, The mounting feet of the motor bracket have mounting holes with a notch.

10. The motor mounting structure as described in claim 1, characterized in that, The motor mounting cavity has an internal support structure, on which a support column is provided, and the shock-absorbing pad is sleeved on the support column.

Images