Starter rear end cover assembly integrated with electric brush assembly
By using sealed conductive connection components and overload protection measures in the starter rear cover assembly, the problem of the brush leads being susceptible to water flow is solved, ensuring the normal operation and overload safety of the starter.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YONGKANG HONGYUN AUTOELECTRIC CO LTD
- Filing Date
- 2025-04-30
- Publication Date
- 2026-05-15
AI Technical Summary
In the existing technology, the brush leads are made of braided wires, which makes it easy for external water to flow into the starter motor through the gaps between the braided wires, affecting its normal use.
The conductive connection components, especially the connecting copper plate, are sealed and inserted into the protective cover to achieve electrical connection between the metal plate and the outer lead wire. Overload protection is provided by the fuse to reduce the probability of water entering the starter. At the same time, the compression plate and elastic component are set at the connection to ensure stable electrical connection.
It effectively reduces the probability of external water entering the starter motor through the connection, protects the internal parts of the starter motor from water damage, and cuts off the electrical connection in case of overload to prevent parts from burning out.
Smart Images
Figure CN224249482U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of starters, and more particularly to a starter rear cover assembly with integrated brush components. Background Technology
[0002] Chinese patent CN202125391U discloses an automotive starter structure, including a brush structure, a brush box and a brush spring mounted on the brush structure, a brush lead wire, a brush bushing connecting the brush lead wire to the brush structure, a sleeve structure extending out of the brush bushing, the sleeve structure being configured as a flexible tube structure wrapping the brush lead wire, and a protective tube protecting the brush lead wire being fitted outside the brush lead wire.
[0003] The brush leads are mostly made of braided wire with large gaps in the inner wall. Therefore, when the brush leads pass through the brush bushing and are inserted into the brush structure, water from the outside will flow into the brush structure through the space inside the braided wire, thus affecting the normal operation of the starter motor. Utility Model Content
[0004] This invention addresses the shortcomings of existing technology where the brush leads are made of braided wires, allowing water to easily flow into the brush structure through the gaps between the braided wires. It provides a starter rear cover assembly with integrated brush components that reduces the probability of water flowing into the starter motor.
[0005] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:
[0006] A starter motor rear cover assembly integrating brush components includes a rear cover body, a plurality of brush components disposed within the rear cover body, a metal plate disposed within the rear cover body for electrically connecting the brush components, a protective cover disposed on the outer wall of the rear cover body, and an outer lead wire electrically connected to the metal plate. A conductive connection component with both ends electrically connected to the metal plate and the outer lead wire is sealed and inserted on the protective cover.
[0007] By adopting the above solution, the electrical connection between the metal plate and the outer lead wire is achieved by the conductive connection component that is sealed and inserted on the protective cover, thereby reducing the probability that external water will flow into the starter motor from the insertion point between the guide connection component and the protective cover.
[0008] Preferably, the conductive connection component includes a connecting copper plate that is vertically and sealedly inserted into the protective cover.
[0009] Using the above solution, the connecting copper plate, which is sealed and inserted into the protective cover, can realize the electrical connection between the outer lead and the metal plate. At the same time, because the connecting copper plate is sealed and inserted into the protective cover, the probability of external water flowing into the starter motor from the connection between the connecting copper plate and the protective cover is reduced.
[0010] Preferably, an overload protection component is provided between the connecting copper plate and the metal plate for electrically connecting the two and enabling overload protection between them.
[0011] Preferably, the overload protection component includes a fuse disposed between the connecting copper plate and the metal plate, with both ends electrically connected to both.
[0012] By using the above solution, a fuse is used to electrically connect the connecting copper plate and the metal plate. This connection can be cut off when the starter is overloaded, thereby reducing the probability of internal starter parts burning out due to overload.
[0013] Preferably, the end of the outer lead wire near the connecting copper plate is located below the connecting copper plate, and a pressing component is provided below the connecting copper plate to facilitate the operator to press the outer lead wire tightly under the connecting copper plate.
[0014] Preferably, the extrusion component includes an extrusion plate disposed below the connecting copper plate, a lifting component disposed between the extrusion plate and the connecting copper plate to drive the extrusion plate to move up and down on the connecting copper plate, and a limiting component to limit the movement of the extrusion plate when the extrusion plate presses the end of the outer lead close to the connecting copper plate against the bottom of the connecting copper plate.
[0015] Using the above scheme, the extrusion plate located below the connecting copper plate can move up and down under the driving force of the lifting component, so that the outer lead can be inserted between the connecting copper plate and the extrusion plate. After the outer lead is inserted between the connecting copper plate and the extrusion plate, it moves towards the connecting copper plate to press the outer lead tightly against the bottom of the connecting copper plate. The limiting component can limit the lifting and lowering of the extrusion plate when the extrusion plate presses the outer lead tightly against the bottom of the connecting copper plate, so that the extrusion plate keeps the outer lead pressed tightly against the bottom of the connecting copper plate. The connecting copper plate extrusion component between the connecting copper plate and the outer lead can be realized, which makes it easy for the operator to realize the electrical connection between the connecting copper plate and the outer lead.
[0016] Preferably, the lifting component includes a guide post protruding from one end of the extrusion plate near the connecting copper plate, which drives the extrusion plate to move vertically up and down on the connecting copper plate; a through hole provided on the connecting copper plate through which the guide post passes; a blocking plate provided at the end of the guide post away from the extrusion plate to restrict the end of the guide post away from the extrusion plate from entering the through hole; and an elastic component provided between the blocking plate and the connecting copper plate to drive the extrusion plate to move towards the connecting copper plate.
[0017] Using the above scheme, the guide post can slide within the perforation on the connecting copper plate, thereby allowing the extrusion plate to move closer to or away from the bottom surface of the connecting copper plate. The elastic component between the blocking plate and the connecting copper plate allows the extrusion plate to be in a state close to the connecting copper plate under normal conditions. At the same time, it can also drive the extrusion plate to move closer to the connecting copper plate after it moves away from the connecting copper plate. The blocking plate can prevent the guide post from being fully inserted into the perforation, thereby preventing the extrusion plate from falling off the connecting copper plate.
[0018] Preferably, the elastic component includes a spring disposed between the blocking plate and the connecting copper plate, with its two ends respectively abutting against both.
[0019] Using the above scheme, the spring fitted on the outer wall of the protruding column can drive the extrusion plate to be in a state close to the connecting copper plate under normal conditions.
[0020] Preferably, a protruding post is provided at the end of the connecting copper plate away from the extrusion plate, the spring is sleeved on the outer wall of the protruding post, and the blocking plate is provided with an insertion hole for the protruding post to pass through.
[0021] Using the above scheme, when the guide column drives the baffle plate to descend, the protrusion will pass through the insertion hole on the baffle plate, so that the baffle plate can move with the movement of the guide column. At the same time, the baffle plate is provided with a hole for the protrusion to be inserted into, which can also prevent the baffle plate from deflecting when the guide column rises and falls.
[0022] Preferably, the limiting component includes a limiting hole perpendicular to the guide post at the point where the guide post extends to the connecting copper plate, and a limiting pin that is partially inserted into the limiting hole when the extrusion plate presses the outer lead wire against the bottom of the connecting copper plate to limit the descent of the extrusion plate.
[0023] Using the above scheme, the limiting pin can be inserted into the limiting hole on the guide post when the extrusion plate presses the outer lead wire against the bottom of the connecting copper plate, thus restricting the movement of the guide post within the through hole and restricting the extrusion plate from moving downward, so that the extrusion plate keeps pressing the outer lead wire against the bottom of the guide post.
[0024] This utility model has significant technical effects due to the adoption of the above technical solutions: the electrical connection between the metal plate and the outer lead wire is achieved by the conductive connection component that is sealed and inserted on the protective cover, thereby reducing the probability of external water flowing into the starter motor from the insertion point between the guide connection component and the protective cover. Attached Figure Description
[0025] Figure 1 This is an isometric view of a starter motor rear end cover assembly with integrated brush components in Embodiment 1.
[0026] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0027] Figure 3 This is an isometric view of the protective cover and connecting copper plate in Embodiment 1;
[0028] Figure 4 This is an isometric view of the connection between the outer lead and the metal plate in Embodiment 1.
[0029] Figure 5 This is an isometric view of a starter rear cover assembly with integrated brush components in Embodiment 2.
[0030] Figure 6 yes Figure 5 Enlarged view of point B in the middle;
[0031] Figure 7 This is an isometric view of the pressing plate pressing the outer lead against the bottom of the connecting copper plate in Embodiment 2.
[0032] Figure 8 This is an isometric view of the extrusion component in Embodiment 2;
[0033] Figure 9 This is an isometric view of the connecting copper plate, anti-detachment plate, and elastic component in Embodiment 2.
[0034] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Rear end cover; 2. Brush assembly; 3. Metal plate; 4. Outer lead wire; 5. Protective cover; 6. Connecting copper plate; 7. Fuse; 8. Extrusion plate; 9. Guide post; 10. Perforation; 11. Blocking plate; 12. Spring; 13. Protrusion; 14. Insertion hole; 15. Limiting pin; 16. Limiting hole. Detailed Implementation
[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0036] Example 1
[0037] A starter motor rear cover assembly integrating brush components, reference Figures 1-3 It includes a rear cover 1, a plurality of brush assemblies 2 disposed inside the rear cover 1, a metal plate 3 disposed inside the rear cover 1 for electrically connecting the brush assemblies 2, a protective cover 5 disposed on the outer wall of the rear cover 1, and an outer lead wire 4 electrically connected to the metal plate 3. A conductive connecting component with both ends electrically connected to the metal plate 3 and the outer lead wire 4 is sealed and inserted on the protective cover 5. The conductive connecting component includes a connecting copper plate 6 vertically sealed and inserted on the protective cover 5.
[0038] refer to Figure 4An overload protection component is provided between the connecting copper plate 6 and the metal plate 3 for electrically connecting the two and realizing overload protection between them. The overload protection component includes a fuse 7 provided between the connecting copper plate 6 and the metal plate 3, with both ends electrically connected to the two respectively.
[0039] Example 2
[0040] The difference between this embodiment and Embodiment 1 is that, referring to... Figures 5-6 The outer lead 4 is positioned below the connecting copper plate 6 at one end. A pressing component is provided below the connecting copper plate 6 to facilitate the operator pressing the outer lead 4 against the bottom of the connecting copper plate 6. The pressing component includes a pressing plate 8 positioned below the connecting copper plate 6, a lifting component positioned between the pressing plate 8 and the connecting copper plate 6 to drive the pressing plate 8 to move up and down on the connecting copper plate 6, and a limiting component to limit the movement of the pressing plate 8 when the pressing plate 8 presses the outer lead 4 near the bottom of the connecting copper plate 6 against the bottom of the connecting copper plate 6.
[0041] refer to Figures 7-9 The lifting component includes a guide post 9 protruding from the end of the extrusion plate 8 near the connecting copper plate 6, which drives the extrusion plate 8 to move vertically and vertically on the connecting copper plate 6. A through hole 10 is provided on the connecting copper plate 6 through which the guide post 9 passes. A blocking plate 11 is provided at the end of the guide post 9 away from the extrusion plate 8 to restrict the end of the guide post 9 away from the extrusion plate 8 from entering the through hole 10. The fixing between the blocking plate 11 and the guide post 9 can be achieved by threaded connection or the like. An elastic component is provided between the blocking plate 11 and the connecting copper plate 6 to drive the extrusion plate 8 to move towards the connecting copper plate 6. The elastic component includes a spring 12 provided between the blocking plate 11 and the connecting copper plate 6, with its two ends respectively abutting against the two. A protruding post 13 is protruding from the end of the connecting copper plate 6 away from the extrusion plate 8. The spring 12 is sleeved on the outer wall of the protruding post 13, and the blocking plate 11 is provided with an insertion hole 14 through which the protruding post 13 passes.
[0042] The limiting component includes a limiting hole 16 perpendicular to the guide post 9 at the point where the guide post 9 passes through to the connecting copper plate 6, and a limiting pin 15 that is partially inserted into the limiting hole 16 when the pressing plate 8 presses the outer lead wire 4 against the bottom of the connecting copper plate 6 and limits the descent of the pressing plate 8. In this embodiment, when the pressing plate 8 presses the outer lead wire 4 against the bottom surface of the connecting copper plate 6, the limiting hole 16 on the guide post 9 is slightly lower than the bottom surface of the connecting copper plate 6.
[0043] The specific connection process between the outer lead and the connecting copper plate is as follows: First, pull the limiting pin 15 out of the limiting hole 16. Then, press the blocking plate 11. The blocking plate 11 will drive the pressing plate 8 to move away from the connecting copper plate 6 through the guide post 9. The spring 12 set between the blocking plate 11 and the connecting copper plate 6 will contract due to the compression of the blocking plate 11. At this time, the outer lead 4 can be inserted between the connecting copper plate 6 and the pressing plate 8. After that, release the blocking plate 11 so that the spring 12 set between the blocking plate 11 and the connecting copper plate 6 will return to its original position. This pushes the baffle plate 11 upward. At this time, the baffle plate 11 will drive the extrusion plate 8 to move closer to the bottom surface of the connecting copper plate 6 through the guide post 9, thereby pressing the outer lead wire 4 tightly onto the bottom surface of the connecting copper plate 6. Finally, the baffle plate 11 is pulled upward forcefully so that the limiting hole 16 on the guide post 9 is fully exposed outside the connecting copper plate 6. At this time, the limiting pin 15 can be inserted into the limiting hole 16 to restrict the extrusion plate 8 from moving away from the connecting copper plate 6, so that the extrusion plate 8 keeps pressing the outer lead wire 4 tightly onto the bottom surface of the connecting copper plate 6.
[0044] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A starter motor rear end cover assembly integrating brush assemblies, comprising a rear end cover body (1), a plurality of brush assemblies (2) disposed within the rear end cover body (1), a metal retaining plate (3) disposed within the rear end cover body (1) for electrically connecting the brush assemblies (2), a protective cover (5) disposed on the outer wall of the rear end cover body (1), and an outer lead wire (4) electrically connected to the metal retaining plate (3), characterized in that: The protective cover (5) is sealed with a conductive connection component whose two ends are electrically connected to the metal plate (3) and the outer lead (4) respectively.
2. The starter motor rear end cover assembly integrating a brush assembly according to claim 1, characterized in that: The conductive connection component includes a connecting copper plate (6) that is vertically and sealedly inserted into the protective cover (5).
3. A starter motor rear end cover assembly integrating a brush assembly according to claim 2, characterized in that: An overload protection component is provided between the connecting copper plate (6) and the metal card plate (3) for electrically connecting the two and realizing overload protection between them.
4. A starter motor rear end cover assembly integrating a brush assembly according to claim 3, characterized in that: The overload protection component includes a fuse (7) disposed between the connecting copper plate (6) and the metal plate (3), with both ends electrically connected to the two respectively.
5. A starter motor rear end cover assembly integrating a brush assembly according to claim 2, characterized in that: The outer lead (4) is located at one end near the connecting copper plate (6) and is positioned below the connecting copper plate (6). A pressing component is provided below the connecting copper plate (6) to facilitate the operator pressing the outer lead (4) against the connecting copper plate (6).
6. A starter motor rear end cover assembly integrating a brush assembly according to claim 5, characterized in that: The extrusion component includes an extrusion plate (8) disposed below the connecting copper plate (6), a lifting component disposed between the extrusion plate (8) and the connecting copper plate (6) to drive the extrusion plate (8) to move up and down on the connecting copper plate (6), and a limiting component to limit the movement of the extrusion plate (8) when the extrusion plate (8) presses one end of the outer lead wire (4) close to the bottom of the connecting copper plate (6) against the bottom of the connecting copper plate (6).
7. A starter motor rear end cover assembly integrating a brush assembly according to claim 6, characterized in that: The lifting component includes a guide post (9) protruding from one end of the extrusion plate (8) near the connecting copper plate (6) to drive the extrusion plate (8) to move vertically up and down on the connecting copper plate (6), a through hole (10) provided on the connecting copper plate (6) through which the guide post (9) passes, a baffle plate (11) provided at the end of the guide post (9) away from the extrusion plate (8) to restrict the end of the guide post (9) away from the extrusion plate (8) from entering the through hole (10), and an elastic component provided between the baffle plate (11) and the connecting copper plate (6) to drive the extrusion plate (8) to move towards the connecting copper plate (6).
8. A starter motor rear end cover assembly integrating a brush assembly according to claim 7, characterized in that: The elastic component includes a spring (12) disposed between the blocking plate (11) and the connecting copper plate (6), with its two ends respectively abutting against both.
9. A starter motor rear end cover assembly integrating a brush assembly according to claim 8, characterized in that: A protruding post (13) is provided at one end of the connecting copper plate (6) away from the extrusion plate (8). The spring (12) is sleeved on the outer wall of the protruding post (13), and the blocking plate (11) is provided with an insertion hole (14) through which the protruding post (13) passes.
10. A starter motor rear end cover assembly integrating a brush assembly according to claim 6, characterized in that: The limiting component includes a limiting hole (16) perpendicular to the guide post (9) provided at the point where the guide post (9) extends to the connecting copper plate (6), and a limiting pin (15) that is partially inserted into the limiting hole (16) and limits the descent of the extrusion plate (8) when the extrusion plate (8) presses the outer lead wire (4) against the bottom of the connecting copper plate (6).