Shockproof shell of direct-current permanent magnet brushless motor

Abstract

The utility model discloses a DC permanent magnet brushless motor shockproof housing, comprising a motor housing, the side end face of the motor housing is equidistantly provided with eight groups of fixed clamping grooves and fixed clamping plates, the fixed clamping plates are fixedly arranged at the center of the front end face of the motor housing, and the front end face of each fixed clamping plate is fixedly provided with a connecting clamping plate. And a fixed rotating groove penetrating through the fixed clamping plate is formed in the inner end surface of the connecting clamping plate. According to the utility model, through the arrangement of the shockproof device, the eight groups of connecting bottom plates can be fixedly connected with the exterior of the motor shell during the buffer protection operation, and when the motor shell vibrates during the operation, the eight groups of connecting bottom plates can buffer the exterior of the motor shell in all directions through the elastic buffer of the buffer springs, so that the motor shell is protected. The vibration buffering stability during motor operation is effectively improved, and meanwhile, the sound insulation performance during motor operation can be effectively improved through the hollow sealing cavity in the protective shell and the hollow arrangement in the connecting clamping plate.

Description

Technical Field

[0001] The utility model relates to the technical field of brushless motor equipment, in particular to a shockproof housing for a DC permanent magnet brushless motor. Background Art

[0002] Permanent magnet brushless DC motor has the advantages of small size, high efficiency, simple structure and less copper usage. It is the main type of low-power DC motor.

[0003] As disclosed in the utility model patent with publication number: CN109768662A, a shockproof housing of a DC permanent magnet brushless motor comprises a housing, a motor movement is installed inside the housing, the motor movement comprises a rotating shaft, a first shock-absorbing housing, a stator core protection housing, a second shock-absorbing housing and a movement housing cover, a heat sink is welded on the surface of the housing, a bolt is installed at one end of the housing, a housing cover is fixedly installed on the housing by bolts, a shock-absorbing module is provided on the inner walls of the housing and the housing cover, the shock-absorbing module comprises a groove, a shock-absorbing spring, a strut and a cushion, a groove is provided on the inner walls of the housing and the housing cover, a shock-absorbing module is provided on the inner side of the housing and the housing cover, the shock-absorbing spring in the shock-absorbing module is compressed to generate a reaction force to push the strut to support and buffer the upper, middle and lower end surfaces of the motor movement, when the motor movement is running, the shock-absorbing spring is used to reduce the force generated by the vibration, thereby achieving the shock-absorbing effect, thereby effectively improving the service life of the DC permanent magnet brushless motor.

[0004] Although the above-mentioned brushless shock-absorbing housing has a certain shock-absorbing function, the shock-absorbing stability of the above-mentioned shock-absorbing housing is insufficient. At the same time, the above-mentioned shock-absorbing device can only buffer vibrations in four directions, which reduces the stability of motor vibration buffering. Therefore, a DC permanent magnet brushless motor shock-proof housing is urgently needed to solve the above-mentioned problems. Utility Model Content

[0005] The utility model aims to provide a shockproof housing for a DC permanent magnet brushless motor to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a DC permanent magnet brushless motor shockproof housing, comprising a motor housing, wherein the side end surface of the motor housing is provided with eight groups of fixed slots at equal intervals,

[0007] A fixed card plate, the fixed card plate is fixedly arranged at the center of the front end surface of the motor housing, a connecting card plate is fixedly arranged on the front end surface of the fixed card plate, and a fixed rotation groove is opened on the inner end surface of the connecting card plate and passes through the fixed card plate;

[0008] An anti-vibration device is fixedly arranged on the outer end surface of the motor housing.

[0009] Preferably, the shockproof device includes a protective shell, a first limit plate is fixedly provided on the rear end face of the protective shell, and a closing clamp is fixedly provided on the rear end face of the first limit plate, a second limit plate is fixedly provided on the front end face of the protective shell, a fixed sleeve is fixedly provided on the inner end faces of the first limit plate and the second limit plate, buffer springs are equidistantly provided on the inner end faces of the fixed sleeves, and a connecting base plate is fixedly installed on the upper end faces of multiple groups of the buffer springs.

[0010] Preferably, the connecting base plate is fixedly connected to the motor housing via the fixing slot, which can improve the stability of subsequent connections.

[0011] Preferably, a hollow sealed cavity is provided between the first limit plate, the protective shell and the second limit plate, which can effectively improve the sound insulation performance of the motor when it is running.

[0012] Preferably, the fixing sleeve is coaxial with the motor housing, which can improve the stability of the motor housing during subsequent operation.

[0013] Preferably, the motor housing and the interior of the connecting card are both hollow, which can effectively improve the sound insulation performance when the motor is running.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model is provided with a shockproof device. When performing buffering and protection operations, the eight groups of connecting base plates can be fixedly connected to the outside of the motor housing. When the motor housing vibrates during operation, the eight groups of connecting base plates can perform buffering operations on the outside of the motor housing in all directions through the elastic buffering of the buffer springs, thereby effectively improving the stability of vibration buffering during motor operation. At the same time, the hollow sealing cavity inside the protective shell and the hollow setting inside the connecting card plate can effectively improve the sound insulation performance of the motor during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a disassembled diagram of the main body of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the main body of the utility model;

[0018] Figure 3 This is a disassembled diagram of the anti-vibration device of the utility model;

[0019] Figure 4 It is a schematic structural diagram of the shockproof device of the utility model.

[0020] In the figure: 1-motor housing, 2-anti-vibration device, 3-fixed card slot, 4-fixed card plate, 5-connecting card plate, 6-fixed rotating slot, 21-closed card plate, 22-first limit plate, 23-protective shell, 24-second limit plate, 25-connecting bottom plate, 26-buffer spring, 27-fixed sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides an embodiment: a DC permanent magnet brushless motor shockproof housing, comprising a motor housing 1, the side end surface of the motor housing 1 is provided with eight groups of fixed slots 3 at equal intervals,

[0023] A fixed card plate 4, which is fixedly arranged at the center of the front end surface of the motor housing 1, a connecting card plate 5 is fixedly arranged on the front end surface of the fixed card plate 4, and a fixed rotation groove 6 is formed on the inner end surface of the connecting card plate 5 and passes through the fixed card plate 4;

[0024] The anti-vibration device 2 is fixedly arranged on the outer end surface of the motor housing 1 .

[0025] The shockproof device 2 includes a protective shell 23, a first limit plate 22 is fixedly provided on the rear end face of the protective shell 23, and a closed clamping plate 21 is fixedly provided on the rear end face of the first limit plate 22, a second limit plate 24 is fixedly provided on the front end face of the protective shell 23, a fixed sleeve 27 is fixedly provided on the inner end faces of the first limit plate 22 and the second limit plate 24, buffer springs 26 are equidistantly provided on the inner end faces of the fixed sleeve 27, and a connecting base plate 25 is fixedly installed on the upper end faces of multiple groups of buffer springs 26.

[0026] The connecting base plate 25 is fixedly connected to the motor housing 1 via the fixing slot 3, which can improve the stability of subsequent connections.

[0027] A hollow sealed cavity is provided between the first limiting plate 22, the protective shell 23 and the second limiting plate 24, which can effectively improve the sound insulation performance when the motor is running.

[0028] The fixing sleeve 27 is coaxial with the motor housing 1 , which can improve the stability of the motor housing 1 during subsequent operation.

[0029] The interiors of the motor housing 1 and the connecting card plate 5 are both hollow, which can effectively improve the sound insulation performance when the motor is running.

[0030] Working principle: When the motor is running, the hollow sealed cavity formed by the first limit plate 22, the protective shell 23 and the second limit plate 24 can effectively isolate the noise inside the motor. At the same time, the connecting card plate 5 can isolate the noise at the front of the motor, effectively improving the sound insulation of the motor. When performing buffering operations, the eight groups of connecting base plates 25 can be fixedly connected to the outside of the motor casing 1, so that when the motor casing 1 vibrates during operation, the eight groups of connecting base plates 25 can perform elastic buffering on the outside of the motor casing 1 in all directions through the buffering of the buffer springs 26.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shockproof housing for a DC permanent magnet brushless motor, comprising a motor housing (1), wherein the side end surface of the motor housing (1) is provided with eight groups of fixing slots (3) at equal intervals, and wherein: A fixed card plate (4), the fixed card plate (4) being fixedly arranged at the center of the front end surface of the motor housing (1), a connecting card plate (5) being fixedly arranged on the front end surface of the fixed card plate (4), and a fixed rotation groove (6) penetrating through the fixed card plate (4) is provided on the inner end surface of the connecting card plate (5); An anti-vibration device (2), wherein the anti-vibration device (2) is fixedly arranged on the outer end surface of the motor housing (1).

2. The shockproof housing of the DC permanent magnet brushless motor according to claim 1 is characterized in that: The shockproof device (2) comprises a protective shell (23), a first limit plate (22) is fixedly provided on the rear end face of the protective shell (23), and a closed clamping plate (21) is fixedly provided on the rear end face of the first limit plate (22), a second limit plate (24) is fixedly provided on the front end face of the protective shell (23), a fixed sleeve (27) is fixedly provided on the inner end faces of the first limit plate (22) and the second limit plate (24), buffer springs (26) are equidistantly provided on the inner end faces of the fixed sleeve (27), and a connecting base plate (25) is fixedly installed on the upper end faces of a plurality of groups of the buffer springs (26).

3. The shockproof housing of the DC permanent magnet brushless motor according to claim 2 is characterized in that: The connecting base plate (25) is fixedly connected to the motor housing (1) via the fixing slot (3).

4. The shockproof housing of the DC permanent magnet brushless motor according to claim 2 is characterized in that: A hollow sealed cavity is provided between the first limiting plate (22), the protective shell (23) and the second limiting plate (24).

5. The shockproof housing of the DC permanent magnet brushless motor according to claim 2 is characterized in that: The fixing sleeve (27) is coaxial with the motor housing (1).

6. The shockproof housing of the DC permanent magnet brushless motor according to claim 2, characterized in that: The interiors of the motor housing (1) and the connecting card plate (5) are both hollow.

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