A modularized start-stop automobile starter brush holder assembly convenient to replace

Abstract

The utility model discloses a modularization start -stop type car starter wiper bracket assembly convenient to replace, including the wiper bracket bottom plate of fixed mounting in the brush holder bottom plate of starting motor end face with fixed bolt, rotor bearing is fixedly installed in the middle position of wiper bracket bottom plate, the inside surface of wiper bracket bottom plate installs brush box, and six are arranged to brush box equal angle, and the inside of brush box installs the brush main part of starting motor rotor contact, the brush main part is connected with brush box through quick -release mechanism in the inside of brush box, and the outside surface of brush box utilizes bolt installation protective cover. This modularization start -stop type car starter wiper bracket assembly convenient to replace adopts novel structure design, and the brush main part is installed in the inside of wiper bracket bottom plate through brush box, finally utilizes wiper bracket bottom plate and installs to the starter in use, wherein each brush is independent use, forms a module structure, and the subsequent dismounting replacement operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of automotive starter technology, specifically to a modular start-stop automotive starter brush holder assembly that is easy to replace. Background Technology

[0002] The starter motor, often simply called a "starter" or "motor," is the core component of the starting system for a gasoline-powered car engine. It converts the electrical energy from the battery into mechanical energy, which drives the engine crankshaft to rotate, enabling the engine to complete the initial process of starting from a standstill and running independently. Since the starter motor contains a motor, it needs to be used in conjunction with brushes, which are generally mounted on a brush holder assembly.

[0003] In the prior art, Chinese patent application number CN201320851013.0 discloses an automotive starter motor brush holder assembly. An insulating plate with a basically consistent shape is stacked on the brush holder plate. The insulating plate has three positive brush boxes and three negative brush boxes evenly distributed in a circle. The positive and negative brush boxes are located on the same circumference and are distributed alternately. Each brush box is equipped with a brush, and a brush spring is provided next to each brush box. A connecting piece is provided above the circumference where the brush boxes are located, and the connecting piece is fixed to the three positive brush boxes.

[0004] Based on the above information, it can be seen that the starter motor in the prior art generally requires the use of multiple brushes to reduce spark generation. However, in actual use, each brush needs to be connected by a connecting device to form a path (such as the "connecting piece" mentioned above). The connecting device forms all the brushes into a whole, which is inconvenient for subsequent maintenance and replacement operations (when replacing, the connecting device needs to be disassembled first, and after the replacement is completed, the connecting device needs to be reinstalled). Utility Model Content

[0005] The purpose of this invention is to provide a modular starter brush holder assembly that is easy to replace, in order to solve the problem of inconvenient disassembly and replacement mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular starter brush holder assembly for easy replacement, comprising a brush holder base plate fixedly mounted on the end face of the starter motor using fixing bolts, a rotor bearing fixedly mounted in the middle of the brush holder base plate, a brush box mounted on the inner surface of the brush holder base plate, and six brush boxes arranged at equal angles, with brush bodies in contact with the starter motor rotor mounted inside the brush boxes, the brush bodies being connected to the brush boxes via a quick-release mechanism inside the brush boxes, a protective cover mounted on the outer surface of the brush boxes using bolts, a connecting wire fixedly mounted on the side of the brush boxes, and a sealing ring fixedly mounted at the edge of the inner surface of the brush holder base plate.

[0007] Preferably, the quick-release mechanism includes a connecting copper plate fixedly installed inside the brush box, and a copper compression spring is fixedly installed on the side of the connecting copper plate.

[0008] Preferably, a mounting block is fixedly provided at the top of the compression spring, and the mounting block is slidably installed between the mounting block and the mounting groove opened at the rear end of the brush body.

[0009] Preferably, the cross-sections of the mounting block and the mounting groove are configured as mutually matching stepped structures.

[0010] Preferably, a mounting ring is fixedly welded to the inner surface of the brush holder base plate, and a positioning groove corresponding to the brush box is formed on the inner side of the mounting ring.

[0011] Preferably, the brush box is assembled into a disassembly and assembly structure by means of a fixing plate fixedly mounted on its side, bolts, and mounting ring.

[0012] Preferably, a photosensitive sensor and an LED bead are fixedly installed on the inner side wall of the brush box, and the brush body blocks the photosensitive sensor.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the easily replaceable modular start-stop car starter brush holder assembly adopts a novel structural design, the specific details of which are as follows:

[0014] 1. The brush body is installed inside the brush holder base plate via the brush box, and finally installed in the starter motor using the brush holder base plate. Each brush is used independently, forming a modular structure, which facilitates subsequent disassembly and replacement.

[0015] Furthermore, an installation block is set inside the brush box. The installation block is slidably installed in conjunction with the installation groove opened at the rear end of the brush body, so as to realize the disassembly and installation of the brush body. At the same time, the elasticity of the compression spring pushes the installation block, so that the brush body always maintains contact with the rotor to ensure the performance. Meanwhile, the compression spring is connected to the connecting copper plate, and the connecting copper plate is connected to the connecting wire, so that the charge inside the brush body can flow smoothly.

[0016] 2. A mounting ring is fixedly welded to the inner side of the brush holder base plate. A positioning groove is opened on the inner side of the mounting ring. The position of the positioning groove corresponds one-to-one with the position of the brush box, thereby using the positioning groove to position the brush box and facilitate assembly operation.

[0017] Furthermore, the brush box contains a photosensitive sensor and an LED. When the starter motor is running, the LED lights up. At normal length, the brush body can block the photosensitive sensor, so the photosensitive sensor cannot receive light. However, when the brush body is worn to the warning length, it can no longer block the photosensitive sensor, and at this time, the photosensitive sensor can receive light from the LED. The change in resistance of the photosensitive sensor, in conjunction with the car's intelligent control system, achieves the purpose of reminding the user to replace the brush. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the brush holder base plate structure of this utility model;

[0020] Figure 3 This is a schematic diagram showing the positional relationship between the mounting box and the mounting ring of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the mounting box of this utility model;

[0022] Figure 5 This is a schematic diagram showing the connection relationship between the mounting block and the mounting groove of this utility model;

[0023] Figure 6 This is a schematic diagram of the photosensitive sensor structure of this utility model.

[0024] In the diagram: 1. Brush holder base plate; 2. Fixing bolt; 3. Rotor bearing; 4. Brush box; 5. Brush body; 6. Protective cover; 7. Connecting wire; 8. Connecting copper sheet; 9. Compression spring; 10. Mounting block; 11. Mounting groove; 12. Fixing plate; 13. Mounting ring; 14. Positioning groove; 15. Sealing ring; 16. Photosensitive sensor; 17. LED bead. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figures 1-3To achieve rapid assembly of the device, this embodiment provides the following technical solution, specifically: a brush holder base plate 1 is fixedly installed on the end face of the starter motor using fixing bolts 2. A rotor bearing 3 is fixedly installed in the middle of the brush holder base plate 1. A brush box 4 is installed on the inner surface of the brush holder base plate 1, and six brush boxes 4 are arranged at equal angles. A brush body 5 that contacts the rotor of the starter motor is installed inside the brush box 4. The brush body 5 is connected to the brush box 4 through a quick-release mechanism inside the brush box 4. A protective cover 6 is installed on the outer surface of the brush box 4 using bolts. A connecting line 7 is fixedly installed on the side of the brush box 4. A sealing ring 15 is fixedly installed at the edge of the inner surface of the brush holder base plate 1. An installation ring 13 is fixedly welded to the inner surface of the brush holder base plate 1. A positioning groove 14 corresponding to the brush box 4 is opened on the inner side of the installation ring 13. The brush box 4 forms a disassembly and assembly structure through the fixing piece 12 fixedly installed on its side and the bolts and installation ring 13.

[0027] In assembling the device, first, the brush box 4 containing the brush body 5 is aligned with the positioning groove 14 on the inner side of the mounting ring 13. Then, the fixing plate 12 is fixed to the mounting ring 13 with bolts, thereby fixing the brush box 4 to the mounting ring 13. Then, the brush holder base plate 1 is fixed to the motor end face of the starter motor with fixing bolts 2. The rotor of the starter motor contacts the brush body 5 to achieve the purpose of reversing. At the same time, the sealing ring 15 on the inner side of the brush holder base plate 1 achieves the purpose of waterproofing. Finally, the connecting wire 7 is arranged.

[0028] Example 2: Please refer to Figures 4-5 In order to achieve the purpose of quick replacement of the brush, this embodiment provides the following technical solution, which specifically discloses: the quick-release mechanism includes a connecting copper plate 8 fixedly installed inside the brush box 4, and a copper compression spring 9 is fixedly installed on the side of the connecting copper plate 8. The top of the compression spring 9 is fixedly provided with a mounting block 10, and the mounting block 10 is slidably installed between the mounting groove 11 opened at the rear end of the brush body 5. The cross-sections of the mounting block 10 and the mounting groove 11 are set as mutually matching stepped structures.

[0029] When the brush body 5 needs to be replaced, first remove the brush holder base plate 1, then remove the protective cover 6, and take out the brush body 5 from inside the brush box 4. When installing the new brush body 5, first align the mounting slot 11 with the mounting block 10 inside the brush box 4, then slide the mounting block 10 into the mounting slot 11 to form a locking structure. The elasticity of the compression spring 9 pushes the mounting block 10, thereby keeping the brush body 5 in contact with the rotor. At the same time, the compression spring 9, the mounting block 10, and the connecting copper plate 8 are all made of copper, which can ensure the flow of charge. The entire replacement process does not require disassembly of the wiring harness or the corresponding connecting device, thus improving the replacement efficiency.

[0030] Example 3: Please refer to Figure 6In order to remind users to replace the brush, this embodiment provides the following technical solution, which specifically discloses that: a photosensitive sensor 16 and an LED bead 17 are fixedly installed on the inner side wall of the brush box 4, and the brush body 5 blocks the photosensitive sensor 16.

[0031] When the starter motor is working, a current branch supplies power to the LED bead 17 and the photosensitive sensor 16. At this time, the LED bead 17 emits light. The brush body 5 of normal length can block the photosensitive sensor 16, so the photosensitive sensor 16 cannot receive light. However, when the brush body 5 is worn to the warning length, it can no longer block the photosensitive sensor 16, and the photosensitive sensor 16 can receive the light from the LED bead 17. The change in resistance of the photosensitive sensor 16, in conjunction with the car's intelligent control system, achieves the purpose of reminding the replacement of the LED bead.

[0032] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular starter motor brush holder assembly for easy replacement, comprising a brush holder base plate (1) fixedly mounted on the end face of a starter motor using fixing bolts (2), wherein a rotor bearing (3) is fixedly mounted in the middle position of the brush holder base plate (1), characterized in that, Also includes: The brush holder base plate (1) is equipped with a brush box (4) on its inner surface. The brush box (4) has six brushes arranged at equal angles. The brush body (5) that contacts the rotor of the starter motor is installed inside the brush box (4). The brush body (5) is connected to the brush box (4) through a quick-release mechanism inside the brush box (4). The outer surface of the brush box (4) is equipped with a protective cover (6) using bolts. The connecting wire (7) is fixedly installed on the side of the brush box (4), and the sealing ring (15) is fixedly installed at the edge of the inner surface of the brush holder base plate (1).

2. The modular starter brush holder assembly for easy replacement according to claim 1, characterized in that: The quick-release mechanism includes a connecting copper plate (8) fixedly installed inside the brush box (4), and a copper compression spring (9) is fixedly installed on the side of the connecting copper plate (8).

3. The modular starter brush holder assembly for easy replacement according to claim 2, characterized in that: The top of the compression spring (9) is fixedly provided with a mounting block (10), and the mounting block (10) is slidably installed between the mounting groove (11) opened at the rear end of the brush body (5).

4. The modular starter brush holder assembly for easy replacement according to claim 3, characterized in that: The cross-sections of the mounting block (10) and the mounting groove (11) are set to a stepped structure that matches each other.

5. The modular starter brush holder assembly for easy replacement according to claim 1, characterized in that: The inner surface of the brush holder base plate (1) is fixedly welded with a mounting ring (13), and a positioning groove (14) corresponding to the brush box (4) is opened on the inner side of the mounting ring (13).

6. A modular starter brush holder assembly for easy replacement according to claim 5, characterized in that: The brush box (4) is assembled into a disassembly and installation structure by means of a fixing plate (12) fixedly installed on its side, bolts and mounting ring (13).

7. A modular starter brush holder assembly for easy replacement according to claim 6, characterized in that: The photosensitive sensor (16) and LED beads (17) are fixedly installed on the inner side wall of the brush box (4), and the brush body (5) blocks the photosensitive sensor (16).

Images