Motor stator mounting structure

Abstract

The present application relates to a motor stator mounting structure, and relates to the field of motors. It includes a rotor, a motor housing and an end cover, the rotor runs through the center of the motor housing, and a cylindrical positioning frame is positioned and installed on the inner side of the motor housing, the front and rear side walls of the positioning frame are both clamped with stators, the left end of the positioning frame is fixedly inserted on the left side wall in the motor housing, and the right end of the positioning frame is fixed with two upper and lower locking blocks locked on the motor housing, and the front and rear sides of the motor housing are both near the right end. Carbon brushes that can move in the front and rear directions are installed. The stator is clamped by the positioning frame, and then the positioning frame is installed into the motor housing together with the stator, and is positioned by being inserted on the left side wall of the motor housing, thereby completing the positioning and installation of the stator, and the positioning frame is locked and fixed by the locking block, so that the installation operation of the stator is more convenient and efficient, and the stator installation positioning can be made more accurate.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a motor stator mounting structure. Background Art

[0002] Electric motors are common power devices that provide driving power for a wide range of devices. Electric motors are generally composed of a motor housing, a stator, and a rotor. Therefore, when assembling the motor, the various components need to be assembled.

[0003] The existing motor stator is installed by installing the stator magnet on the inner wall of the motor housing, but the internal space of the motor housing is small, which makes the assembly difficult. In addition, due to the high assembly precision requirements, the stator magnet of many motors is not installed and positioned accurately.

[0004] This shows that the existing stator installation structure of the motor still has the problem of inconvenient stator installation and inaccurate installation positioning. Utility Model Content

[0005] In order to solve the problems of inconvenient stator installation and inaccurate installation positioning in the existing motor stator installation structure, the present application provides a motor stator installation structure.

[0006] The present application provides a motor stator installation structure adopting the following technical solution:

[0007] A motor stator mounting structure comprises a rotor, a motor housing and an end cover, wherein the rotor passes through the center of the motor housing, and a cylindrical positioning frame is positioned and installed on the inner side of the motor housing, the stators are clamped on the front and rear side walls of the positioning frame, the left end of the positioning frame is fixedly inserted on the left side wall in the motor housing, and the right end of the positioning frame is fixed with two upper and lower locking blocks locked on the motor housing, carbon brushes that can move in the front and rear directions are installed near the right end of the front and rear sides of the motor housing, and torsion springs that elastically press the carbon brushes against the rotor are fixed on the front and rear sides of the motor housing, the end cover is fixed on the inner side of the right port of the motor housing, and the right end of the end cover is provided with a baffle fixed to the right end of the motor housing.

[0008] By adopting the above technical solution, the stator is clamped by the positioning frame, and then the positioning frame and the stator are installed in the motor housing, and are positioned by being inserted on the left side wall of the motor housing, thereby completing the positioning and installation of the stator, and the positioning frame is locked and fixed by the locking block, so that the installation operation of the stator is more convenient and efficient, and the installation positioning of the stator can be made more accurate.

[0009] Optionally, two upper and lower long strip-shaped jacks are provided on the left side wall of the motor housing, and lock holes cooperating with the lock block are provided on the upper side walls of the motor housing, and a plurality of heat dissipation ports evenly arranged in a circle are provided on the outer wall of the motor housing located on the right side of the lock holes, two front and rear make way grooves are provided on the edge of the right port of the motor housing, and two upper and lower card-mounting grooves are provided on the edge of the right port of the motor housing.

[0010] By adopting the above technical solution, the motor housing inserts and positions the positioning frame through the insertion hole, and locks and fixes the positioning frame through the locking hole and the locking block.

[0011] Optionally, a plug block inserted into the jack is fixed to the left end of the positioning frame, and positioning grooves for positioning and installing the locking block are provided on the upper and lower edges of the right port of the positioning frame, and the locking block is fixed to the inner bottom of the positioning groove by fixing screws.

[0012] By adopting the above technical solution, the positioning frame is inserted into the insertion hole for positioning through the insertion block, and the locking block is installed and fixed through the positioning groove and the fixing screw.

[0013] Optionally, installation cavities are provided on the front and rear side walls of the positioning frame, and step grooves are provided at the openings of the two installation cavities facing outwards.

[0014] By adopting the above technical solution, the mounting cavity is used for positioning and clamping the stator.

[0015] Optionally, the size of the stator is the same as the size of the installation cavity, and a rib that is clamped in the step groove is fixed on an outward side of the stator.

[0016] By adopting the above technical solution, the stator is fixed in a limited position after being clamped in the step groove by the retaining edge.

[0017] Optionally, the rotor includes a main shaft, bearings are fixedly mounted on the main shaft near the left and right ends, and a fan blade is fixedly mounted on the left side of the main shaft located on the right side of the bearing.

[0018] By adopting the above technical solution, when the main shaft rotates, it drives the fan blades to rotate, thereby driving the air flow, thereby achieving heat dissipation and cooling of the entire motor.

[0019] Optionally, a carbon brush holder for movable guidance is sleeved on the outer side of the carbon brush, and the carbon brush holder is fixed on the end cover, and a clearance opening is provided on the side of the carbon brush holder facing the torsion spring.

[0020] By adopting the above technical solution, the carbon brush holder movably guides the carbon brush and gives way to the torsion spring during elastic driving through the giving way opening.

[0021] Optionally, a raised clamping ring is fixed on one side of the end cover facing the motor housing, and clamping blocks are fixed on both upper and lower sides of the end cover.

[0022] By adopting the above technical solution, the end cover is installed on the motor housing through the clamping ring, and is positioned during installation through the clamping block.

[0023] In summary, this application includes the following beneficial technical effects:

[0024] The stator is clamped in place through the positioning frame, and then the positioning frame and the stator are installed in the motor housing, and are positioned by being inserted on the left side wall of the motor housing, thereby completing the positioning and installation of the stator, and the positioning frame is locked and fixed by a locking block, thereby making the installation operation of the stator more convenient and efficient, and at the same time making the stator installation positioning more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a stereogram in the embodiment of the present application;

[0026] Figure 2 is a schematic diagram of a motor housing in an embodiment of the present application;

[0027] Figure 3 is a schematic diagram of a positioning frame in an embodiment of the present application;

[0028] Figure 4 is a schematic diagram of a rotor in an embodiment of the present application;

[0029] Figure 5 is a schematic diagram of a carbon brush in an embodiment of the present application;

[0030] Figure 6 It is a schematic diagram of the end cover in the embodiment of the present application.

[0031] Explanation of the reference numerals in the accompanying drawings: 1. rotor; 110. main shaft; 120. bearing; 130. fan blade; 2. motor housing; 21. socket; 22. lock hole; 23. heat dissipation port; 24. clearance groove; 25. mounting groove; 3. end cover; 31. clamping ring; 32. clamping block; 4. baffle; 5. carbon brush; 51. carbon brush holder; 52. clearance opening; 6. torsion spring; 7. stator; 71. rib; 8. positioning frame; 81. mounting cavity; 82. step groove; 83. plug block; 84. positioning groove; 85. locking block; 86. fixing screw. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] The present application embodiment discloses a motor stator mounting structure. Figure 1, including a rotor 1, a motor housing 2 and an end cover 3, the rotor 1 passes through the center of the motor housing 2, and a cylindrical positioning frame 8 is positioned and installed on the inner side of the motor housing 2, and a stator 7 is clamped on the front and rear side walls of the positioning frame 8, the left end of the positioning frame 8 is fixedly inserted on the left side wall of the motor housing 2, and the right end of the positioning frame 8 is fixed with two upper and lower locking blocks 85 locked on the motor housing 2, and the front and rear sides of the motor housing 2 are both installed near the right end. Carbon brushes 5 that can move in the front and rear directions are fixed, and the front and rear sides of the motor housing 2 are fixed with a toggle carbon brush 5 to rotate The stator 1 is elastically pressed against the torsion spring 6, the end cover 3 is fixed to the inner side of the right port of the motor housing 2, and the right end of the end cover 3 is provided with a baffle 4 fixed to the right end of the motor housing 2, the stator 7 is clamped by the positioning frame 8, and then the positioning frame 8 is installed together with the stator 7 into the motor housing 2, and is positioned by being inserted on the left side wall of the motor housing 2, thereby completing the positioning and installation of the stator 7, and the positioning frame 8 is locked and fixed by the locking block 85, so that the installation operation of the stator 7 is more convenient and efficient, and the installation and positioning of the stator 7 can be made more accurate.

[0034] Reference Figure 2 The left side wall of the motor housing 2 is provided with two upper and lower long strip-shaped jacks 21, and the motor housing 2 inserts and positions the positioning frame 8 through the jacks 21, and the upper side walls of the motor housing 2 are provided with locking holes 22 that cooperate with the locking block 85, and the positioning frame 8 is locked and fixed through the locking holes 22 and the locking block 85. The outer side wall of the motor housing 2 is located on the right side of the locking hole 22 and is provided with a plurality of heat dissipation ports 23 evenly arranged in a circumference for heat dissipation of the motor. The right port edge of the motor housing 2 is provided with two front and rear makeshift grooves 24, and the right port edge of the motor housing 2 is provided with two upper and lower card slots 25 for positioning and carding the card block 32.

[0035] Reference Figure 3 The left end of the positioning frame 8 is fixed with an insert block 83 inserted in the socket 21. The positioning frame 8 is positioned in the socket 21 by inserting the insert block 83, and the upper and lower edges of the right port of the positioning frame 8 are provided with positioning grooves 84 for positioning and installing the locking block 85. The locking block 85 is fixed to the inner bottom of the positioning groove 84 by a fixing screw 86. The positioning frame 8 installs and fixes the locking block 85 by the positioning groove 84 and the fixing screw 86.

[0036] Reference Figure 3 The front and rear side walls of the positioning frame 8 are both provided with mounting cavities 81, which are used for positioning and clamping the stator 7, and the two mounting cavities 81 are provided with step grooves 82 at the openings facing outwards to match the retaining edges 71. The size of the stator 7 is the same as that of the mounting cavities 81 to achieve better clamping fit, and the retaining edge 71 is fixed on the outward side of the stator 7 to be clamped in the step groove 82. The stator 7 is fixed in a limited position after being clamped by the retaining edge 71 clamped in the step groove 82.

[0037] Reference Figure 4 The rotor 1 includes a main shaft 110, and bearings 120 are fixedly mounted near the left and right ends of the main shaft 110, and a fan blade 130 is fixedly mounted on the left side of the main shaft 110 located on the right side of the bearing 120. When the main shaft 110 rotates, it drives the fan blade 130 to rotate, thereby driving the air flow, thereby achieving heat dissipation and cooling of the entire motor.

[0038] Reference Figure 5 A carbon brush holder 51 for movable guiding is mounted on the outer side of the carbon brush 5, and the carbon brush holder 51 is fixed on the end cover 3. The carbon brush holder 51 movably guides the carbon brush 5. A clearance opening 52 is provided on the side of the carbon brush holder 51 facing the torsion spring 6, and the clearance opening 52 is used to make way for the torsion spring 6 during elastic driving.

[0039] Reference Figure 6 A raised clamping ring 31 is fixed on the side of the end cover 3 facing the motor housing 2, and the end cover 3 is installed on the motor housing 2 through the clamping ring 31, and clamping blocks 32 are fixed on the upper and lower sides of the end cover 3, and the end cover is positioned during installation through the clamping blocks 32.

[0040] The implementation principle of a motor stator mounting structure of an embodiment of the present application is as follows: when installing the stator 7, the stator 7 is clamped in the mounting cavity 81 on the positioning frame 8. After the stator 7 is installed on the positioning frame 8, the positioning frame 8 is inserted into the motor housing 2 together with the stator 7. At this time, the insert block 83 of the positioning frame 8 is inserted into the insert hole 21, and then the locking block 85 is clamped in the positioning groove 84 and one end of the locking block 85 is inserted into the locking hole 22, and then the locking block 85 is fixed to the positioning frame 8 by the fixing screw 86, thereby completing the installation of the stator 7.

[0041] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A motor stator mounting structure, comprising a rotor (1), a motor housing (2) and an end cover (3), characterized in that: The rotor (1) passes through the center of the motor housing (2), and a cylindrical positioning frame (8) is positioned and installed on the inner side of the motor housing (2). The front and rear side walls of the positioning frame (8) are both clamped with stators (7). The left end of the positioning frame (8) is fixedly inserted on the left side wall inside the motor housing (2), and the right end of the positioning frame (8) is fixed with two upper and lower locking blocks (85) locked on the motor housing (2). The front and rear sides of the motor housing (2) are both installed near the right end. Carbon brushes (5) that can move in the front and rear directions are installed, and torsion springs (6) that elastically press the carbon brushes (5) against the rotor (1) are fixed on the front and rear sides of the motor housing (2). The end cover (3) is fixed on the inner side of the right port of the motor housing (2), and the right end of the end cover (3) is provided with a baffle (4) fixed to the right end of the motor housing (2).

2. A motor stator mounting structure according to claim 1, characterized in that: The left side wall of the motor housing (2) is provided with two upper and lower long strip-shaped insertion holes (21), and the upper side wall of the motor housing (2) is provided with a locking hole (22) that cooperates with the locking block (85), the outer side wall of the motor housing (2) is provided with a plurality of heat dissipation openings (23) evenly arranged in a circumferential shape at the right side of the locking hole (22), the right port edge of the motor housing (2) is provided with two front and rear clearance grooves (24), and the right port edge of the motor housing (2) is provided with two upper and lower clamping grooves (25).

3. A motor stator mounting structure according to claim 2, characterized in that: The left end of the positioning frame (8) is fixed with an insert block (83) inserted into the insertion hole (21), and the upper and lower edges of the right end of the positioning frame (8) are provided with positioning grooves (84) for positioning and installing a locking block (85), and the locking block (85) is fixed to the inner bottom of the positioning groove (84) by a fixing screw (86).

4. A motor stator mounting structure according to claim 3, characterized in that: The front and rear side walls of the positioning frame (8) are both provided with mounting cavities (81), and the two mounting cavities (81) are provided with step grooves (82) at their openings facing outwards.

5. The motor stator mounting structure according to claim 4, characterized in that: The size of the stator (7) is the same as the size of the installation cavity (81), and a retaining edge (71) is fixed on the outward side of the stator (7) and is clamped in the step groove (82).

6. A motor stator mounting structure according to claim 5, characterized in that: The rotor (1) comprises a main shaft (110), bearings (120) are fixedly sleeved on the main shaft (110) near both left and right ends, and a fan blade (130) is fixedly sleeved on the left side of the main shaft (110) located on the right side of the bearing (120).

7. A motor stator mounting structure according to claim 6, characterized in that: A carbon brush holder (51) for movable guidance is sleeved on the outer side of the carbon brush (5), and the carbon brush holder (51) is fixed on the end cover (3). A clearance opening (52) is provided on the side of the carbon brush holder (51) facing the torsion spring (6).

8. The motor stator mounting structure according to claim 7, characterized in that: A raised clamping ring (31) is fixed on the side of the end cover (3) facing the motor housing (2), and clamping blocks (32) are fixed on both the upper and lower sides of the end cover (3).

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