Anti-offset positioning motor brush holder

Abstract

The utility model relates to the technical field of motor brush holders, and discloses an anti-offset positioning motor brush holder, which comprises a mounting bottom plate, an inner hole is arranged in the mounting bottom plate, a carbon brush seat is mounted at the top end of the mounting bottom plate, mounting holes are arranged in a cover plate, threaded rods are movably arranged in the mounting holes, and the threaded rods are movably connected with the inner hole of the mounting bottom plate. And rotating handles are fixed to the top ends of the threaded rods correspondingly, locking blocks are fixed to the bottom ends of the threaded rods correspondingly, and rubber blocks are fixed to the bottom ends of the locking blocks correspondingly. The motor brush holder is provided with the cover plate, the clamping ring, the clamping seat, the rubber block and the like, the carbon brush seat can be opened by pushing the cover plate in the use process of the motor brush holder, so that the carbon brush can be conveniently replaced, the carbon brush can be stably attached to a commutator through the limiting of the rubber block, the running stability of a motor is ensured, and the service life of the motor brush holder is prolonged. Therefore, the motor brush holder can avoid deviation of the carbon brush, and the use effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of motor brush holders, in particular to an anti-deviating positioning motor brush holder. Background Art

[0002] The motor brush holder is a commonly used component inside the motor. It is made of aluminum castings, bronze castings and other synthetic materials. Its function is to install the brushes, ensure that the brushes are fully and tightly fitted with the deflectors inside the motor and have an accurate position, maintain stable electrical conduction, thereby avoiding commutation failures and ensuring the normal operation of the motor.

[0003] Traditional motor brush holders require the motor's carbon brushes to be securely attached to the motor's commutator during use to ensure proper motor operation and avoid malfunctions. Therefore, we propose a motor brush holder with anti-drift positioning to address this issue. Utility Model Content

[0004] The purpose of the present utility model is to provide a motor brush holder with anti-deviating positioning to solve the problems raised in the above background technology.

[0005] The top end face of said sliding panel also is provided with an interlocking structure, and the interlocking structure of said sliding panel also is provided with an interlocking structure.

[0006] Preferably, the cross section of the sliding buckle is smaller than the cross section of the sliding buckle groove, and a sliding structure is formed between the sliding buckle and the sliding buckle groove.

[0007] Preferably, the cross section of the clamping ring is larger than the cross section of the clamping seat, and the clamping ring forms a clamping structure with the clamping seat through the clamping groove.

[0008] Preferably, two groups of the sliding buckles and sliding buckle grooves are provided, and the sliding buckles and sliding buckle grooves are symmetrically distributed about the central axis of the carbon brush holder.

[0009] Preferably, connecting seats are installed on both sides of the bottom end of the mounting base plate, connecting grooves are provided at the bottom ends of the connecting seats, adjusting bolts are movably provided inside the connecting grooves, connecting blocks are fixed at the bottom ends of the adjusting bolts, and fixing plates are fixed at the bottom ends of the connecting blocks, and fixing bolts are provided on both sides of the fixing plates.

[0010] Preferably, the inner side wall of the connecting groove is evenly provided with internal threads, and a threaded connection is formed between the connecting groove and the adjusting bolt.

[0011] Preferably, a heat conducting sheet is mounted on the bottom end of the mounting base plate via a fixing member, and a heat dissipation fin is mounted on the bottom end of the heat conducting sheet.

[0012] Preferably, four groups of heat conducting plates are provided, and the four groups of heat conducting plates are distributed in a ring shape at the bottom end of the mounting base.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the motor brush holder with anti-deviated positioning not only enables the carbon brush and the commutator to be stably fitted together, and facilitates fine adjustment of the installation height of the motor brush holder according to actual needs, but also achieves better heat dissipation effect of the motor brush holder;

[0014] (1) By providing components such as a cover plate, a retaining ring, a retaining seat and a rubber block, the motor brush holder can be opened by pushing the cover plate during use, thereby facilitating the replacement of the carbon brush. The positioning of the rubber block allows the carbon brush to be stably attached to the commutator, ensuring the stability of the motor operation, thereby preventing the carbon brush from being misaligned and achieving better use effect.

[0015] (2) By providing components such as an adjusting bolt, a connecting seat, and a connecting groove, when the motor brush holder is installed inside the motor for use, the installation height of the motor brush holder inside the motor can be adjusted according to actual needs due to the provision of the above components, thereby making the installation height of the motor brush holder adjustable and more adaptable;

[0016] (3) By providing components such as heat conducting plates, heat dissipating fins and fixing parts, the motor brush holder generates a certain amount of heat when in use, and the heat needs to be discharged in time. Therefore, by adding the above components to the bottom end of the mounting base, the heat dissipation effect of the motor brush holder is improved, and the heat can be discharged in time to avoid heat accumulation and excessive temperature causing damage to the motor brush holder and shortening its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the top view of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of the carbon brush holder of the present invention;

[0019] Figure 3 This is a schematic diagram of the front view structure of the fixing plate of the present invention;

[0020] Figure 4 For the utility model Figure 1 A schematic diagram of the enlarged cross-section structure at center A;

[0021] Figure 5 This is a schematic diagram of the bottom structure of the present invention.

[0022] In the figure: 1. Mounting base; 2. Carbon brush holder; 3. Snap ring; 4. Socket; 5. Cover; 6. Rotating shaft; 7. Fixed block; 8. Inner hole; 9. Slot; 10. Turn handle; 11. Threaded rod; 12. Sliding buckle slot; 13. Locking block; 14. Rubber block; 15. Mounting hole; 16. Sliding buckle; 17. Fixed plate; 18. Fixed bolt; 19. Adjusting bolt; 20. Connecting seat; 21. Connecting slot; 22. Fixed block; 23. Heat conducting plate; 24. Heat sink; 25. Fixing parts. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5, the utility model provides an embodiment: a motor brush holder with anti-drift positioning, comprising a mounting base 1, an inner hole 8 is provided inside the mounting base 1, a carbon brush holder 2 is installed on the top of the mounting base 1, a cover plate 5 is movably provided on the top of the carbon brush holder 2, sliding buckles 16 are fixed on both sides of the bottom end of the cover plate 5, a sliding buckle groove 12 is provided on the outside of the sliding buckle 16, and the sliding buckle groove 12 is provided at the top of the carbon brush holder 2, a fixing block 7 is fixed at one end of the top end of the cover plate 5, a rotating shaft 6 is installed inside the fixing block 7, a snap ring 3 is movably provided on the outer wall of the rotating shaft 6, a clamping ring 3 is movably provided inside the clamping ring 3, a clamping seat 4 is movably provided inside the clamping ring 3, and the bottom end of the clamping seat 4 is fixed to the top end of the carbon brush holder 2, a clamping groove 9 is provided inside the clamping seat 4, and the cross section of the clamping ring 3 is larger than The cross section of the card seat 4, the snap ring 3 forms a snap-fit ​​structure with the card seat 4 through the card slot 9, which is convenient for limiting and locking the cover plate 5, the interior of the cover plate 5 is provided with a mounting hole 15, the interior of the mounting hole 15 is movably provided with a threaded rod 11, the top of the threaded rod 11 is fixed with a turning handle 10, the bottom end of the threaded rod 11 is fixed with a locking block 13, and the bottom end of the locking block 13 is fixed with a rubber block 14, the cross section of the sliding buckle 16 is smaller than the cross section of the sliding buckle groove 12, and a sliding structure is formed between the sliding buckle 16 and the sliding buckle groove 12, and the sliding buckle 16 and the sliding buckle groove 12 are provided with two groups, and the sliding buckle 16 and the sliding buckle groove 12 are symmetrically distributed about the central axis of the carbon brush holder 2, which is convenient for pushing the cover plate 5 to move the carbon brush holder 2 to open and close;

[0025] Specifically, if Figure 1 and Figure 3 After that, the carbon brush is put into the interior of the carbon brush holder 2, and the sliding buckle 16 is buckled into the interior of the sliding buckle groove 12 and the cover plate 5 is pushed to one end so that the cover plate 5 seals the carbon brush holder 2. Then, the snap ring 3 is flipped to engage with the slot 9 inside the holder 4, thereby limiting the cover plate 5. Then, the handle 10 is rotated to make the threaded rod 11 rotate and push the rubber block 14 at the bottom end of the locking block 13 to fit above the carbon brush. The rubber block 14 has a certain elasticity, which ensures that the carbon brush is stably fitted with the commutator while giving the carbon brush a certain amount of space to move.

[0026] Connecting seats 20 are installed on both sides of the bottom end of the mounting base 1, and connecting grooves 21 are provided at the bottom ends of the connecting seats 20. Adjusting bolts 19 are movably provided inside the connecting grooves 21, and connecting blocks 22 are fixed to the bottom ends of the adjusting bolts 19. The bottom ends of the connecting blocks 22 are fixed to the fixing plates 17, and fixing bolts 18 are provided on both sides of the fixing plates 17. The inner side walls of the connecting grooves 21 are evenly provided with internal threads, and a threaded connection is formed between the connecting grooves 21 and the adjusting bolts 19. The design of the threaded connection facilitates adjustment of the installation height of the mounting base 1;

[0027] Specifically, if Figure 3 As shown, the motor brush holder is installed at the top or bottom end of the motor through the fixing plate 17 and the fixing bolt 18. During the subsequent installation process, the adjusting bolt 19 can be rotated according to actual needs to rotate in the connecting groove 21 inside the connecting seat 20, so that the connection length between the adjusting bolt 19 and the connecting seat 20 is changed, thereby adjusting the installation height of the mounting base 1.

[0028] A heat conducting sheet 23 is mounted on the bottom end of the mounting base 1 through a fixing member 25. A heat dissipation fin 24 is mounted on the bottom end of the heat conducting sheet 23. Four groups of heat conducting sheets 23 are provided. The four groups of heat conducting sheets 23 are distributed in a ring shape at the bottom end of the mounting base 1, so that the heat dissipation of the mounting base 1 is more comprehensive and the heat dissipation effect is better.

[0029] Specifically, if Figure 5 As shown, when the motor brush holder is in use, the heat generated by the carbon brushes and the mounting base plate 1 is conducted to the heat conducting plate 23, and then the heat conducting plate 23 conducts the heat to the heat dissipation fins 24 and is quickly discharged through the heat dissipation fins 24, thereby preventing the carbon brushes and the mounting base plate 1 from generating excessive heat.

[0030] Working principle: When using the present invention, take out the mounting base 1 and install it inside the motor. During installation, it is installed at the top or bottom end of the motor through the fixing piece 17 and the fixing bolt 18, and during installation, the adjusting bolt 19 can also be rotated to rotate it in the connecting groove 21 inside the connecting seat 20 to adjust the mounting height of the mounting base 1. After adjusting the height, push the cover 5 to one side and bend it upward to open the carbon brush holder 2, and then put the carbon brush into the carbon brush holder 2. Then, buckle the sliding buckle 16 into the sliding buckle groove 12 and push the cover 5 to one end to seal the carbon brush holder 2. Then flip the snap ring 3 so that it is engaged with the slot 9 inside the holder 4, and then rotate the handle 10 so that the threaded rod 11 rotates and pushes the rubber block 14 at the bottom of the locking block 13 to fit above the carbon brush for limit locking, so that the carbon brush and the commutator are stably fitted together for use.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A motor brush holder with anti-drift positioning, comprising a mounting base (1), characterized in that: An inner hole (8) is provided inside the mounting base (1), a carbon brush holder (2) is installed on the top of the mounting base (1), a cover plate (5) is movably provided on the top of the carbon brush holder (2), sliding buckles (16) are fixed on both sides of the bottom of the cover plate (5), a sliding buckle groove (12) is provided on the outside of the sliding buckle (16), and the sliding buckle groove (12) is provided at the top of the carbon brush holder (2), a fixing block (7) is fixed on one end of the top of the cover plate (5), a rotating shaft (6) is installed inside the fixing block (7), and the outer side of the rotating shaft (6) is fixed on the outer side of the rotating shaft (6). The wall is movably provided with a snap ring (3), the interior of the snap ring (3) is movably provided with a card seat (4), and the bottom end of the card seat (4) is fixed to the top end of the carbon brush holder (2), the interior of the card seat (4) is provided with a card slot (9), the interior of the cover plate (5) is provided with a mounting hole (15), the interior of the mounting hole (15) is movably provided with a threaded rod (11), the top end of the threaded rod (11) is fixed with a rotating handle (10), the bottom end of the threaded rod (11) is fixed with a locking block (13), and the bottom end of the locking block (13) is fixed with a rubber block (14).

2. The anti-deviating positioning motor brush holder according to claim 1, characterized in that: The cross section of the sliding buckle (16) is smaller than the cross section of the sliding buckle groove (12), and a sliding structure is formed between the sliding buckle (16) and the sliding buckle groove (12).

3. The motor brush holder with anti-drift positioning according to claim 1, characterized in that: The cross section of the clamping ring (3) is larger than the cross section of the clamping seat (4), and the clamping ring (3) forms a clamping structure with the clamping seat (4) through the clamping groove (9).

4. The motor brush holder with anti-drift positioning according to claim 1, characterized in that: The sliding buckles (16) and the sliding buckle grooves (12) are each provided in two groups, and the sliding buckles (16) and the sliding buckle grooves (12) are symmetrically distributed about the central axis of the carbon brush holder (2).

5. The motor brush holder with anti-deviating positioning according to claim 1, characterized in that: Connecting seats (20) are installed on both sides of the bottom end of the mounting base plate (1), and connecting grooves (21) are provided at the bottom ends of the connecting seats (20). Adjusting bolts (19) are movably provided inside the connecting grooves (21), and connecting blocks (22) are fixed to the bottom ends of the adjusting bolts (19), and fixing plates (17) are fixed to the bottom ends of the connecting blocks (22), and fixing bolts (18) are provided on both sides of the fixing plates (17).

6. The motor brush holder with anti-deviating positioning according to claim 5, characterized in that: The inner side wall of the connecting groove (21) is evenly provided with internal threads, and a threaded connection is formed between the connecting groove (21) and the adjusting bolt (19).

7. The motor brush holder with anti-deviating positioning according to claim 1, characterized in that: A heat conducting plate (23) is mounted on the bottom end of the mounting base plate (1) via a fixing member (25), and a heat dissipation fin (24) is mounted on the bottom end of the heat conducting plate (23).

8. The motor brush holder with anti-deviating positioning according to claim 7, characterized in that: Four groups of heat conducting sheets (23) are provided, and the four groups of heat conducting sheets (23) are distributed in a ring shape at the bottom end of the mounting base plate (1).

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