Electric brush carrier structure for electric brush

Abstract

The utility model is applicable to the technical field of electric brush carriers, and provides an electric brush carrier structure for an electric brush, which comprises a bending plate, a suspension area is arranged in the middle area of the bending plate, base areas are arranged at the two end areas of the bending plate, a base plate is mounted at the top of the suspension area, a mounting frame is fixedly connected to the top of the base plate, and the mounting frame is fixedly connected with the bending plate. A clamping assembly is arranged on the mounting frame, an electric brush head is inserted into the mounting frame, and the electric brush head is clamped by the clamping assembly; an installer pushes sliding plates to the outer side, a connecting plate drives a moving plate and a clamping plate to synchronously move to the outer side, meanwhile, a telescopic spring is stretched, an electric brush head is inserted into an installation frame, limitation on the sliding plates is released, and the two sliding plates move to the inner side under the elastic force of the telescopic spring; and the clamping plates are synchronously driven to move towards the inner side to clamp and fix the electric brush heads, so that the electric brush heads with different sizes are clamped and fixed, and the stability of the electric brush heads in the working process of the motor is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of brush holders, and in particular relates to a brush holder structure for brushes. Background Art

[0002] The brush holder is a device for installing brushes. It ensures that the brushes are accurately positioned on the commutator, thereby ensuring that the brushes are in full and close contact with the commutator, keeping the contact voltage drop constant, and ensuring that the brushes do not jump and cause sparks, resulting in commutation failures. In addition, in order to improve the efficiency of the motor, the brush holder needs to be regularly maintained.

[0003] The Chinese utility model with publication number CN220042530U discloses a detachable brush holder for automobile motors, comprising an outer frame, a positioning column is arranged inside the outer frame, a rubber pad is arranged on the upper surface of the positioning column, a mounting cross plate is arranged on the outer side of the upper end of the positioning column, a damping hole groove is arranged on the inner side of the outer end of the mounting cross plate, and a first adjusting bolt is arranged on the upper end of the positioning column; a mounting support plate, whose monomers are respectively arranged at the upper surface edge of the mounting cross plate, a second adjusting bolt is arranged at the connection between the mounting support plate and the mounting cross plate, a brush holder body is arranged on the upper side of the middle part of the mounting support plate, a brush head body is arranged on the inner side of the brush holder body, a support rod fixedly connected to the mounting support plate is arranged on the right side of the brush holder body, a brush spring is arranged on the outer side of the support rod, and a first electrode sheet and a second electrode sheet connected to the mounting support plate are respectively arranged on the left side of the brush holder body; the utility model is conducive to disassembling the brush holder according to needs, avoiding the failure to replace it in time when it is damaged, and can perform stable positioning installation.

[0004] However, the above utility model still has some shortcomings:

[0005] During use of the above-mentioned utility model, the brush head body needs to be inserted into the brush holder body. In order to ensure the stability of the brush head body, the size of the brush head body needs to be adapted to the size of the brush holder body. This results in different sizes of brush heads requiring different types of brush holders, reducing the versatility of the brush holder. In addition, there are limitations to restricting the brush head only by brush holders of matching sizes, because the motor will vibrate during operation, resulting in the possibility that the brush head may be detached from the brush holder during the operation of the motor, making the motor prone to failure. Utility Model Content

[0006] The utility model provides a brush holder structure for a brush, aiming to solve the problems mentioned in the above background technology.

[0007] The utility model is implemented as follows: a brush holder structure for a brush comprises a bending plate, a suspended area is arranged in the middle area of ​​the bending plate, and base areas are arranged in the two end areas of the bending plate, a base plate is installed on the top of the suspended area, a mounting frame is fixedly connected to the top of the base plate, a clamping assembly is arranged on the mounting frame, a brush head is inserted in the mounting frame, and the brush head is clamped by the clamping assembly; in this scheme, the brush head is inserted in the mounting frame, and the brush head is clamped and fixed by means of the clamping assembly to ensure the stability of the brush head during the operation of the motor.

[0008] Preferably, the clamping assembly includes a movable plate, and the movable plate is disposed through both left and right side walls of the mounting frame, the inner end of the movable plate is fixedly connected to a clamping plate, and a plurality of limit strips are disposed on the inner side wall of the clamping plate; in this scheme, the clamping plate can be moved driven by the movable plate to clamp and fix brush heads of different sizes, thereby improving the versatility of the brush holder.

[0009] Preferably, the top of the movable plate is fixedly connected to a sliding plate via a connecting plate, a sliding groove is provided on the top of the mounting frame, the length direction of the sliding groove is consistent with the width direction of the mounting frame, the sliding plate is slidably arranged in the sliding groove, the two sliding plates are connected by a telescopic spring, and a plurality of anti-slip strips are provided on the top of the sliding plate; in this scheme, the clamping plate can clamp and fix brush heads of different sizes with the help of the elasticity of the telescopic spring.

[0010] Preferably, the bending plate is detachably mounted on the motor housing by a first bolt, and the base plate is detachably connected to the bending plate by a second bolt and a nut.

[0011] Preferably, a plurality of first heat dissipation holes are provided at the suspended area, a plurality of second heat dissipation holes are provided on the base plate, the first heat dissipation holes correspond to the second heat dissipation holes, and a weight reduction hole is provided on the top of the mounting frame; in this solution, the heat generated at the bottom of the brush head can be dissipated from the first heat dissipation holes and the second heat dissipation holes to the bottom of the suspended area, thereby improving the heat dissipation efficiency of the brush head.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The installer pushes the sliding plate outward, drives the moving plate and the clamping plate to move outward synchronously through the connecting plate, and the telescopic spring is stretched at the same time. Then the brush head is inserted into the mounting frame and the restriction on the sliding plate is released. The two sliding plates move inward under the elastic force of the telescopic spring, and synchronously drive the clamping plate to move inward to clamp and fix the brush head, so that brush heads of different sizes can be clamped and fixed, and the stability of the brush head during motor operation is ensured;

[0014] The heat generated by the bottom of the brush head during operation can be transferred from the first heat dissipation hole and the second heat dissipation hole to the bottom of the suspended area, thereby preventing the brush head from overheating and increasing the service life of the brush head. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view schematic diagram of the utility model;

[0016] Figure 2 It is a top view schematic diagram of the utility model;

[0017] Figure 3 For the utility model Figure 1 AA section schematic diagram;

[0018] In the figure:

[0019] 1. Bending plate; 2. Suspension area; 3. Base area; 4. Base plate; 5. Mounting frame;

[0020] 6. Clamping assembly; 61. Clamping plate; 62. Moving plate; 63. Limiting strip; 64. Connecting plate; 65. Sliding plate; 66. Sliding groove; 67. Anti-slip strip; 68. Telescopic spring;

[0021] 7. Brush head; 8. Weight reduction hole; 9. First bolt; 10. Second bolt; 11. Nut; 12. First heat dissipation hole; 13. Second heat dissipation hole. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0024] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1-3 The utility model provides a technical solution: a brush holder structure for a brush, comprising a bending plate 1, a suspended area 2 is arranged in the middle area of ​​the bending plate 1, and base areas 3 are arranged at both end areas of the bending plate 1, a base plate 4 is installed on the top of the suspended area 2, a mounting frame 5 is fixedly connected to the top of the base plate 4, a clamping assembly 6 is arranged on the mounting frame 5, a brush head 7 is inserted in the mounting frame 5, and the brush head 7 is clamped by the clamping assembly 6.

[0028] Specifically, the mounting frame 5 is in an inverted shape, and the brush head 7 is clamped and fixed by the clamping assembly 6 to ensure that the brush head 7 will not be separated from the mounting frame 5 when the motor vibrates during operation, thereby ensuring the normal operation of the motor.

[0029] Furthermore, the clamping assembly 6 includes a movable plate 62 , and the movable plates 62 are disposed through both left and right side walls of the mounting frame 5 . The inner end of the movable plate 62 is fixedly connected to the clamping plate 61 , and a plurality of limit strips 63 are disposed on the inner side wall of the clamping plate 61 .

[0030] Specifically, the movable plate 62 drives the clamping plate 61 to move in the horizontal direction to clamp and fix the brush heads 7 of different sizes; the setting of the limit strip 63 increases the friction between the clamping plate 61 and the brush head 7, further ensuring the clamping stability of the clamping plate 61 on the brush head 7.

[0031] Furthermore, the top of the movable plate 62 is fixedly connected to a sliding plate 65 via a connecting plate 64, a sliding groove 66 is provided on the top of the mounting frame 5, the length direction of the sliding groove 66 is consistent with the width direction of the mounting frame 5, the sliding plate 65 is slidably set in the sliding groove 66, the two sliding plates 65 are connected by a telescopic spring 68, and a plurality of anti-slip strips 67 are provided on the top of the sliding plate 65.

[0032] Specifically, the sliding plate 65 slides in the sliding groove 66, and can synchronously drive the moving plate 62 and the clamping plate 61 to move through the connecting plate 64; when the two sliding plates 65 move outward, the telescopic spring 68 is stretched, and the brush head 7 is inserted into the mounting frame 5 at this time. After the sliding plate 65 is released, the sliding plate 65 is moved inward with the help of the elastic force of the telescopic spring 68, and the clamping plate 61 is synchronously driven to move inward, and the brush head 7 is clamped with the help of the elastic force of the telescopic spring 68; the setting of the anti-slip strip 67 makes it difficult for the operator to slip when pushing the sliding plate 65 with the tip of his finger.

[0033] Furthermore, the bending plate 1 is detachably mounted on the motor housing by means of a first bolt 9 , and the base plate 4 is detachably connected to the bending plate 1 by means of a second bolt 10 and a nut 11 .

[0034] Specifically, the first bolt 9 is screwed to the base area 3 on the bending plate 1 to ensure that the suspended area 2 will not contact the motor housing, and it is also convenient to remove the entire brush holder from the motor housing; the second bolt 10 and the nut 11 are arranged in the suspended area 2 of the bending plate 1, and the second bolt 10 is screwed from the top of the suspended area 2, and the nut 11 is connected to the second bolt 10 from the bottom of the suspended area 2, which is convenient for removing the base plate 4 from the bending plate 1.

[0035] Furthermore, a plurality of first heat dissipation holes 12 are opened in the suspended area 2 , a plurality of second heat dissipation holes 13 are opened on the base plate 4 , the first heat dissipation holes 12 correspond to the second heat dissipation holes 13 , and a weight reduction hole 8 is opened on the top of the mounting frame 5 .

[0036] Specifically, the positions and sizes of the first heat dissipation hole 12 and the second heat dissipation hole 13 correspond to each other, which facilitates the brush head 7 to dissipate heat from the first heat dissipation hole 12 and the second heat dissipation hole 13, and the setting of the suspended area 2 further facilitates the heat dissipation of the brush head 7; the setting of the weight-reducing hole 8 facilitates the brush head 7 to dissipate heat from above while reducing the weight of the mounting frame 5.

[0037] Working principle and use process of the utility model: After the utility model is installed, the installer places the thumb and middle finger on the sliding plate 65 and pushes the sliding plate 65 outward, driving the moving plate 62 and the clamping plate 61 to move outward synchronously through the connecting plate 64, and the telescopic spring 68 is stretched at the same time. At this time, the installer inserts the brush head 7 into the mounting frame 5 and releases the restriction on the sliding plate 65;

[0038] The two sliding plates 65 move inwards under the elastic force of the telescopic springs 68, and simultaneously drive the clamping plate 61 to move inwards to clamp and fix the brush head 7, thereby clamping and fixing the brush heads 7 of different sizes and ensuring the stability of the brush head 7 during motor operation.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A brush holder structure for a brush, characterized in that: The invention comprises a bending plate (1), wherein a suspended area (2) is provided in the middle area of ​​the bending plate (1), and base areas (3) are provided in the two end areas of the bending plate (1), a base plate (4) is installed on the top of the suspended area (2), a mounting frame (5) is fixedly connected to the top of the base plate (4), a clamping assembly (6) is provided on the mounting frame (5), a brush head (7) is inserted into the mounting frame (5), and the brush head (7) is clamped by the clamping assembly (6).

2. A brush holder structure for a brush according to claim 1, characterized in that: The clamping assembly (6) includes a movable plate (62), and the movable plate (62) is provided on both the left and right side walls of the mounting frame (5). The inner end of the movable plate (62) is fixedly connected to the clamping plate (61), and the inner side wall of the clamping plate (61) is provided with a plurality of limit strips (63).

3. A brush holder structure for a brush according to claim 2, characterized in that: The top of the movable plate (62) is fixedly connected to a sliding plate (65) via a connecting plate (64). A sliding groove (66) is provided on the top of the mounting frame (5). The length direction of the sliding groove (66) is consistent with the width direction of the mounting frame (5). The sliding plate (65) is slidably arranged in the sliding groove (66). The two sliding plates (65) are connected by a telescopic spring (68), and a plurality of anti-slip strips (67) are provided on the top of the sliding plate (65).

4. The brush holder structure for a brush according to claim 1, wherein: The bending plate (1) is detachably mounted on the motor housing via a first bolt (9), and the base plate (4) is detachably connected to the bending plate (1) via a second bolt (10) and a nut (11).

5. The brush holder structure for a brush according to claim 1, characterized in that: The suspended area (2) is provided with a plurality of first heat dissipation holes (12), the base plate (4) is provided with a plurality of second heat dissipation holes (13), the first heat dissipation holes (12) and the second heat dissipation holes (13) correspond to each other, and a weight reduction hole (8) is provided on the top of the mounting frame (5).

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