Detachable brushless motor stator assembly

Abstract

The utility model is applicable to the technical field of brushless motors, and provides a detachable brushless motor stator assembly, which comprises a base body, the inner wall of the bottom of the base body is connected with an inner ring, and the detachable brushless motor stator assembly drives a trapezoidal seat to move up and down, so that the trapezoidal seat can relieve extrusion on two guide wheels or extrude the two guide wheels again. The two guide wheels can pull out the two fixing rods from the interiors of the two fixing holes in the inner ring or push the two fixing rods into the interiors of the two fixing holes in the inner ring again through the two fixing seats; according to the brushless motor stator assembly, the base cover plate is arranged on the base body, so that a worker can conveniently complete the disassembly between the base body and the base cover plate to overhaul and maintain parts in the base body, or firmly fix the base cover plate and the base body into a whole for use, and the stability of the brushless motor stator assembly in use is guaranteed; and the practical performance of the brushless motor stator assembly is improved to a certain extent.

Description

Technical Field

[0001] This utility model belongs to the field of brushless motor technology, and particularly relates to a detachable brushless motor stator assembly. Background Technology

[0002] A brushless motor is a type of DC motor that uses electronic commutation technology. It achieves rotor rotation by controlling the direction of current through electronic circuits. It has advantages such as high efficiency, low noise, and long life. The stator assembly of a brushless motor is a key component that constitutes the core structure of a brushless motor. Its core function is to drive the rotor to rotate continuously by generating a magnetic field through current, which interacts with the magnetic field of the rotor's permanent magnets. At the same time, it provides mechanical support for the rotor. Therefore, the stator assembly of a brushless motor is an essential and important component in the structure of a brushless motor.

[0003] In traditional brushless motor stator assemblies, when workers need to inspect or maintain the components inside the stator assembly base, they have to tediously and repeatedly unscrew the bolts from the base cover to separate the stator assembly base from the base cover. This causes inconvenience to workers in inspecting and maintaining the internal components of the stator base, reduces the efficiency of inspection and maintenance, and is therefore detrimental to actual use. Utility Model Content

[0004] This utility model provides a detachable brushless motor stator assembly, which aims to solve the problem that when performing inspection or maintenance on existing brushless motor stator assemblies, workers need to unscrew the bolts from the base cover plate multiple times to separate the stator assembly base from the base cover plate, which causes inconvenience to workers in inspecting and maintaining the internal components of the stator base.

[0005] To solve the above problems, this utility model adopts the following technical solution: a detachable brushless motor stator assembly, including a base body, an inner ring connected to the inner wall of the bottom of the base body, two fixing holes and several slots on the inner ring, and a stator core is engaged in the inner cavity of the slots. An insulating part is connected to the side wall of the stator core, and a connecting protective sleeve is fitted on the insulating part. The protective sleeve has a locking hole, and a base cover plate is fitted on the protective sleeve. A fixing box is fixedly installed on the inner wall of the base cover plate. A locking component is installed in the inner cavity of the fixing box, and a positioning component that works in conjunction with the locking component is drivenly connected to the locking component.

[0006] Preferably, the locking assembly includes a support box fixedly installed on the inner wall of the fixed box. The inner cavity of the support box is slidably connected with a plurality of locking rods. One end of each locking rod passes through the inner wall of the support box, the fixed box, and the base cover plate in sequence and extends into the locking hole on the protective sleeve. A drive disc is slidably connected to the outer wall of the top of the locking rod, and the drive disc is rotatably connected to the inner wall of the fixed box.

[0007] Preferably, the drive disk has a cross-shaped groove, and a rotating shaft is inserted into the inside of the cross-shaped groove.

[0008] Preferably, a limiting rod is fixedly installed on the side wall at the bottom of the clamping rod, and the limiting rod is slidably connected to the bottom of the inner cavity of the support box.

[0009] Preferably, the positioning component includes a threaded rod rotatably connected to the bottom side wall of the support box and the bottom inner wall of the fixed box, and the top end of the threaded rod passes through the inner wall of the support box and is fixedly connected to the side wall of the drive disc. A trapezoidal seat is threadedly sleeved on the outer side wall of the bottom end of the threaded rod. Guide wheels are slidably connected to both sides of the inner cavity of the trapezoidal seat. A fixed seat is fixedly installed on the side wall of the guide wheel, and a fixed rod is fixedly connected to the bottom side wall of the fixed seat.

[0010] Preferably, two guide rods are slidably connected to the trapezoidal base, and the two ends of the guide rods are respectively fixedly connected to the bottom side wall of the support box and the bottom inner wall of the fixed box.

[0011] Preferably, a return spring is fixedly installed on the side wall of the fixed base, and the return spring is fixedly connected to the inner wall of the fixed box.

[0012] Preferably, two sliding plates are connected to the side walls of the two fixed seats, and sliding rods are slidably connected to both sliding plates on both sides, and both sliding rods are fixedly connected to the inner wall of the fixed box.

[0013] Compared with the prior art, the embodiments of this application have the following main advantages:

[0014] 1. This utility model uses the reverse rotation of the drive disc to move four locking rods towards the interior of the support box, thereby pulling the four locking rods out from the locking holes on the four protective sleeves. This releases the restriction on the base cover plate, achieving the effect of quick disassembly of the base cover plate. This allows workers to quickly separate the base body from the base cover plate, exposing the internal components of the base body to the workers' view. This facilitates the workers' quick inspection and maintenance of the internal components of the base body, thereby improving the efficiency of the inspection and maintenance work and benefiting practical use.

[0015] 2. This utility model, by moving the trapezoidal base up and down, can release the pressure on the two guide wheels or re-press them, allowing the two guide wheels to pull the two fixing rods out from the two fixing holes on the inner ring through the two fixing seats, or push them back into the two fixing holes on the inner ring. This facilitates the easy disassembly of the base body and the base cover plate for inspection and maintenance of the internal components of the base body, or securely fixes the base cover plate and the base body into a whole for use, ensuring the stability of the brushless motor stator assembly during use, and thus improving the practical performance of the brushless motor stator assembly to a certain extent. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0017] Figure 2 This is a cross-sectional three-dimensional structural diagram of the component base body of this utility model;

[0018] Figure 3 This is a cross-sectional perspective view of the three-dimensional structure of the component base cover plate of this utility model;

[0019] Figure 4 This is a cross-sectional perspective view of the component fixing box of this utility model;

[0020] Figure 5 This is the utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0021] Figure 6 This is a three-dimensional structural diagram of the rotating shaft and drive disk of this utility model.

[0022] In the diagram: 1. Base body; 2. Insulation part; 3. Protective sleeve; 4. Base cover plate; 5. Fastening assembly; 51. Support box; 52. Rotating shaft; 53. Drive disc; 54. Locking rod; 55. Limiting rod; 6. Fixing box; 7. Stator core; 8. Inner ring; 9. Positioning assembly; 91. Threaded rod; 92. Guide rod; 93. Trapezoidal seat; 94. Fixed seat; 95. Slide plate; 96. Return spring; 97. Slide rod; 98. Fixing rod; 99. Guide wheel. Detailed Implementation

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] This utility model embodiment provides a detachable brushless motor stator assembly, such as... Figures 1-6 As shown, the system includes a base body 1. An inner ring 8 is connected to the inner wall of the bottom of the base body 1. The inner ring 8 has two fixing holes and several slots, and a stator core 7 is engaged within the inner cavity of each slot. An insulating part 2 is connected to the side wall of the stator core 7, and a protective sleeve 3 is fitted onto the insulating part 2. The protective sleeve 3 has locking holes, and a base cover plate 4 is fitted onto the protective sleeve 3. A fixing box 6 is fixedly installed on the inner wall of the base cover plate 4. A locking component 5 is installed within the inner cavity of the fixing box 6. The locking component 5 allows for the release and fixation of the base cover plate 4, enabling workers to quickly access the base body. The base body 1 and base cover 4 can be separated to facilitate quick inspection and maintenance of the internal components of the base body 1. The locking component 5 is connected to a positioning component 9 that works in conjunction with the locking component 5. The positioning component 9 can further release and fix the base cover 4, allowing the base body 1 and base cover 4 to be separated to facilitate quick inspection and maintenance of the internal components of the base body 1, or to securely fix the base cover 4 and base body 1 into a whole for use, ensuring the stability of the brushless motor stator assembly during use.

[0025] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the locking assembly 5 includes a support box 51 fixedly installed on the inner wall of the fixed box 6. Several locking rods 54 are slidably connected to the inner cavity of the support box 51. One end of each locking rod 54 passes through the inner wall of the support box 51, the fixed box 6, and the base cover plate 4 and extends into the locking hole on the protective sleeve 3. A drive disk 53 is slidably connected to the outer wall of the top of the locking rod 54. The drive disk 53 is rotatably connected to the inner wall of the fixed box 6. The drive disk 53 and the threaded rod 91 are driven to rotate in opposite or forward directions by the rotating shaft 52, so that the drive disk 53 can control the four locking rods 54 to move into the support box 51 or move out of the support box 51. In this way, the four locking rods 54 can be pulled out from the locking holes on the four protective sleeves 3 or pushed back into the locking holes on the protective sleeves 3, thereby realizing the release and fixation of the restriction on the base cover plate 4.

[0026] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a cross-shaped groove is provided on the drive disk 53, and a rotating shaft 52 is inserted into the inside of the cross-shaped groove. By inserting the rotating shaft 52 into the inside of the drive disk 53, the drive disk 53 can be controlled to rotate in the reverse or forward direction.

[0027] In a further preferred embodiment of this utility model, such as Figure 4 and Figure 5 As shown, a limiting rod 55 is fixedly installed on the side wall at the bottom of the clamping rod 54, and the limiting rod 55 is slidably connected to the bottom of the inner cavity of the support box 51. When the four clamping rods 54 move toward or out of the support box 51, they can drive the four limiting rods 55 to slide at the bottom of the inner cavity of the support box 51, thereby limiting the position of the four support boxes 51 and enabling the four support boxes 51 to move smoothly.

[0028] In a further preferred embodiment of this utility model, such as Figure 4 and Figure 5As shown, the positioning component 9 includes a threaded rod 91 rotatably connected to the bottom side wall of the support box 51 and the bottom inner wall of the fixed box 6. The top end of the threaded rod 91 passes through the inner wall of the support box 51 and is fixedly connected to the side wall of the drive disc 53. A trapezoidal seat 93 is threadedly sleeved on the outer side wall of the bottom end of the threaded rod 91. Guide wheels 99 are slidably connected to both sides of the inner cavity of the trapezoidal seat 93. A fixed seat 94 is fixedly installed on the side wall of the guide wheel 99. A fixed rod 98 is fixedly connected to the side wall at the bottom of the fixed seat 94. When the threaded rod 91 rotates in the reverse or forward direction, it can control the trapezoidal seat 93 to move up or down. When the trapezoidal seat 93 moves up or down, it can control the two fixed seats 94 to close or open through the two guide wheels 99. In this way, the two fixed rods 98 can be pulled out from the inside of the two fixed holes on the inner ring 8 or pushed back into the inside of the two fixed holes on the inner ring 8, thereby realizing the further restriction and release and restriction fixation of the base cover plate 4.

[0029] In a further preferred embodiment of this utility model, such as Figure 4 and Figure 5 As shown, two guide rods 92 are slidably connected to the trapezoidal base 93, and the two ends of the guide rods 92 are fixedly connected to the bottom side wall of the support box 51 and the bottom inner wall of the fixed box 6, respectively. When the trapezoidal base 93 moves up or down, it can slide on the two guide rods 92, thereby limiting the position of the trapezoidal base 93 and enabling the trapezoidal base 93 to move smoothly.

[0030] In a further preferred embodiment of this utility model, such as Figure 4 and Figure 5 As shown, a return spring 96 is fixedly installed on the side wall of the fixed base 94, and the return spring 96 is fixedly connected to the inner wall of the fixed box 6. Through the elastic return function of the two return springs 96, the two return springs 96 can control the two guide wheels 99 to quickly close together through the two fixed bases 94 to prepare for the next unfolding work.

[0031] In a further preferred embodiment of this utility model, such as Figure 4 and Figure 5 As shown, two sliding plates 95 are connected to the side walls of the two fixed seats 94. Each of the two sliding plates 95 on both sides is slidably connected to a sliding rod 97, and the two sliding rods 97 are fixedly connected to the inner wall of the fixed box 6. When the two fixed seats 94 are closed or opened, they can drive the two adjacent sliding plates 95 to slide on the two sliding rods 97, thereby limiting the position of the two fixed seats 94 and enabling the two fixed seats 94 to move smoothly.

[0032] In this embodiment, when the worker needs to inspect and maintain the components inside the base body 1, the worker inserts the rotating shaft 52 into the drive disc 53. Then, the worker rotates the rotating shaft 52 in the opposite direction, causing the drive disc 53 and the threaded rod 91 to rotate in the opposite direction. This allows the drive disc 53 to pull the four locking rods 54 out of the locking holes on the four protective sleeves 3, and the threaded rod 91 to pull the two fixing rods 98 out of the two fixing holes on the inner ring 8 by driving the trapezoidal seat 93 to move upward. This releases the restriction on the base cover plate 4, allowing the worker to quickly separate the base body 1 from the base cover plate 4 to inspect and maintain the components inside the base body 1. Similarly, when the worker... After the internal components of the base body 1 have been inspected and maintained, the worker places the base cover plate 4 on the four protective sleeves 3, ensuring that the four locking rods 54 are aligned with the locking holes on the four protective sleeves 3. When the four locking rods 54 are aligned with the locking holes on the four protective sleeves 3, the two fixing rods 98 are also aligned with the two fixing holes on the inner ring 8. Then, the worker rotates the rotating shaft 52 in the forward direction to securely fix the base cover plate 4 to the base body 1 for use. After the worker has securely fixed the base cover plate 4 to the base body 1, the worker pulls the rotating shaft 52 out of the drive disk 53, and the brushless motor stator assembly can be installed on the brushless motor for use.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A detachable brushless motor stator assembly comprising a base body (1), characterized in that, The inner wall of the bottom of the base body (1) is connected with an inner ring (8), two fixing holes and a plurality of clamping grooves are formed in the inner ring (8), the inner cavity of the clamping groove is clamped with a stator core (7), the side wall of the stator core (7) is connected with an insulating part (2), the insulating part (2) is sleeved with a protective sleeve (3), the protective sleeve (3) is provided with a clamping hole, the protective sleeve (3) is sleeved with a base cover plate (4), the inner wall of the base cover plate (4) is fixedly provided with a fixing box (6), the inner cavity of the fixing box (6) is provided with a clamping assembly (5), and the clamping assembly (5) is drivingly connected with a positioning assembly (9) used in cooperation with the clamping assembly (5).

2. The detachable brushless motor stator assembly of claim 1, wherein, The clamping assembly (5) comprises a supporting box (51) fixedly installed on the inner wall of the fixing box (6), a plurality of clamping rods (54) are slidingly connected in the inner cavity of the supporting box (51), one end of the clamping rod (54) penetrates the inner wall of the supporting box (51), the fixing box (6) and the base cover plate (4) in sequence and extends into the clamping hole on the protective sleeve (3), the outer side wall of the top of the clamping rod (54) is slidingly connected with a driving disc (53), and the driving disc (53) is rotationally connected to the inner wall of the fixing box (6).

3. The detachable brushless motor stator assembly of claim 2, wherein, The driving disc (53) is provided with a cross recess, and the cross recess is inserted with a rotating shaft (52).

4. The detachable brushless motor stator assembly of claim 2, wherein, The side wall of the bottom of the clamping rod (54) is fixedly provided with a limiting rod (55), and the limiting rod (55) is slidingly connected at the bottom of the inner cavity of the supporting box (51).

5. The detachable brushless motor stator assembly of claim 1, wherein, The positioning assembly (9) comprises a threaded rod (91) rotationally connected to the bottom side wall of the supporting box (51) and the bottom inner wall of the fixing box (6), the top end of the threaded rod (91) penetrates the inner wall of the supporting box (51) in sequence and is fixedly connected to the side wall of the driving disc (53), the outer side wall of the bottom end of the threaded rod (91) is threadedly sleeved with a trapezoidal seat (93), the inner cavities of the two sides of the trapezoidal seat (93) are slidingly connected with guide wheels (99), the side wall of the guide wheel (99) is fixedly provided with a fixing seat (94), and the side wall of the bottom of the fixing seat (94) is fixedly connected with a fixing rod (98).

6. The detachable brushless motor stator assembly of claim 5, wherein, The trapezoidal seat (93) is slidingly connected with two guide rods (92), and the two ends of the guide rod (92) are fixedly connected with the bottom side wall of the supporting box (51) and the bottom inner wall of the fixing box (6) respectively.

7. The detachable brushless motor stator assembly of claim 5, wherein, The side wall of the fixing seat (94) is fixedly provided with a return spring (96), and the return spring (96) is fixedly connected to the inner wall of the fixing box (6).

8. The detachable brushless motor stator assembly of claim 5, wherein, The side walls of the two fixing seats (94) are connected with two sliding plates (95), the two sliding plates (95) on the two sides are slidingly connected with a sliding rod (97), and the two sliding rods (97) are fixedly connected to the inner wall of the fixing box (6).

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