Integral alternator carbon brush seal
By employing connection and sealing components in the integrated alternator design, the problem of mud intrusion into the carbon brush box is solved, achieving a stable connection and multiple seals to ensure normal generator operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI XINERGAO ELECTRIC
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-31
AI Technical Summary
In the prior art, the carbon brush box of an integrated automotive alternator is prone to mud intrusion, which can cause the carbon brush assembly to seize up and affect the normal operation of the alternator.
The design incorporates connecting and sealing components, including mounting blocks, connecting cylinders, protective cylinders, sliding cylinders, gaskets, and bearings. Through the combination of threaded connections and gaskets, a stable connection and multiple seals are achieved to prevent mud from entering the carbon brush box.
It effectively prevents mud from entering the carbon brush box, avoids carbon brush assembly jamming, ensures normal generator operation, improves sealing effect, and prevents leakage.
Smart Images
Figure CN224582664U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of generator carbon brush technology, and in particular to an integral AC generator carbon brush sealing structure. Background Technology
[0002] Currently, in existing technologies, the rear cover of an integrated automotive alternator has a regulator with a carbon brush box. The carbon brush box contains a carbon brush assembly, and the carbon brushes of the carbon brush assembly are located at one end of the outer surface of the alternator rotor shaft. However, when the alternator is tested for mud, mud can easily enter from the opening in the rear cover of the alternator, and mud and water can easily enter the carbon brush box, causing the carbon brush assembly to seize up and resulting in a significant risk of the alternator failing to generate electricity.
[0003] Among them, a search revealed that Chinese patent CN205377531U discloses an integrated AC generator carbon brush sealing structure. In the application of the above-mentioned patent's technical solution, the connection between the protective cylinder and the mounting cylinder is unstable and prone to loosening, resulting in poor sealing effect of the protective cylinder on the carbon brush. Therefore, in order to better realize the carbon brush protection function, promote the technological progress of the industry, and improve the core technology competitiveness, this application proposes a new implementation scheme that is different from the carbon brush sealing structure in the prior art. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an apparatus to solve one or more problems in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: An integral alternator carbon brush sealing structure includes a connecting assembly and a sealing assembly. The connecting assembly includes a mounting block, a connecting cylinder is fixedly connected to one side of the mounting block, and a plurality of first connecting blocks are fixedly connected to the circumference of the mounting block. The sealing assembly includes a protective cylinder, a plurality of carbon brush ports are provided on the circumference of the protective cylinder, a sliding cylinder is fixedly connected to one end of the protective cylinder, the connecting cylinder is inserted into the sliding cylinder, and a plurality of second connecting blocks are fixedly connected to the outer circumference of the sliding cylinder.
[0006] Furthermore, a pressure ring is fixedly connected to one end of the protective cylinder, and a first sealing gasket is provided at one end of the pressure ring, with one end of the connecting cylinder in contact with the first sealing gasket.
[0007] Furthermore, a first sealing cylinder is bonded to the inner circumference of the slide cylinder, and the inner wall of the first sealing cylinder is in contact with the connecting cylinder and the pressure ring.
[0008] Furthermore, a second sealing gasket is provided at one end of the slide cylinder, and the second sealing gasket is in contact with the mounting block.
[0009] Furthermore, a bearing is embedded at one end of the protective cylinder.
[0010] Furthermore, a first screw is threaded between the first connecting block and the inner wall of one side of the cover.
[0011] Furthermore, a second screw is threadedly connected between the second connecting block and the first connecting block.
[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows: 1. The arrangement of the first connecting block, the second connecting block, and the second screw facilitates the secure installation of the connecting component and the sealing component, thereby preventing the connection between the protective sleeve and the mounting sleeve from loosening and improving the sealing effect of the protective sleeve on the carbon brush.
[0013] 2. Multiple seals are applied between the connecting assembly and the sealing assembly using a first sealing gasket, a first sealing cylinder, and a second sealing gasket to prevent leakage. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of an integral AC generator carbon brush sealing structure proposed in this utility model; Figure 2 This is a schematic diagram of the explosion separation structure of an integral AC generator carbon brush sealing structure proposed in this utility model; Figure 3 This is a side view of the cross-sectional structure of the sealing component of an integral AC generator carbon brush sealing structure proposed in this utility model. Figure 4 This is a partial cross-sectional side view of the carbon brush sealing structure of an integrated AC generator proposed in this utility model. Figure 5 This is a three-dimensional structural diagram of the installation state of an integral AC generator carbon brush sealing structure proposed in this utility model. Figure 6 This is a cross-sectional view of the installation and use of an integral AC generator carbon brush sealing structure proposed in this utility model.
[0015] The following are labels in the attached diagram: 1. Connecting assembly; 101. Mounting block; 102. Connecting cylinder; 103. First connecting block; 104. First screw; 2. Sealing assembly; 201. Protective cylinder; 202. Carbon brush port; 203. Slide cylinder; 204. Second connecting block; 205. Pressure ring; 206. First sealing gasket; 207. First sealing cylinder; 208. Second sealing gasket; 209. Bearing; 210. Second screw; 3. Cover; 4. Adjuster; 5. Carbon brush body; 6. Rotor shaft. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0017] Reference Figures 1-6 An integrated alternator carbon brush sealing structure includes a connecting assembly 1, a sealing assembly 2, a cover 3, a regulator 4, a carbon brush body 5, and a rotor shaft 6. The connecting component 1 includes a mounting block 101, with a connecting cylinder 102 integrally formed on one side of the mounting block 101. Multiple first connecting blocks 103 are integrally formed on the circumference of the mounting block 101. The sealing component 2 includes a protective cylinder 201, with multiple carbon brush ports 202 on its circumference. The carbon brush assembly of the regulator 4 is inserted into the carbon brush ports 202. The carbon brush body 5 is mounted on the carbon brush assembly of the regulator 4 and is located inside the protective cylinder 201. A sliding cylinder 2 is integrally formed at one end of the protective cylinder 201. 03. A nano-hydrophobic coating is provided inside the slide cylinder 203. The connecting cylinder 102 is inserted into the slide cylinder 203. Multiple second connecting blocks 204 are integrally formed on the outer circumference of the slide cylinder 203. The second connecting blocks 204 and the first connecting blocks 103 are threadedly connected with second screws 210. The slide cylinder 203 and the connecting cylinder 102 are sleeved together. Then, the second screws 210 are passed through the first connecting blocks 103 and the second connecting blocks 204 in another part, thereby making a stable connection between the connecting component 1 and the sealing component 2.
[0018] One end of the protective cylinder 201 is integrally formed with a pressure ring 205, and one end of the pressure ring 205 is provided with a first sealing gasket 206. One end of the connecting cylinder 102 is in contact with the first sealing gasket 206. The inner circumferential wall of the sliding cylinder 203 is bonded with a first sealing cylinder 207, and the inner wall of the first sealing cylinder 207 is in contact with the connecting cylinder 102 and the pressure ring 205. One end of the sliding cylinder 203 is provided with a second sealing gasket 208, and the second sealing gasket 208 is in contact with the mounting block 101. The first sealing gasket 206, the first sealing cylinder 207 and the second sealing gasket 208 provide multiple seals between the connecting assembly 1 and the sealing assembly 2, thereby preventing leakage.
[0019] The first sealing gasket (206) has a thickness of 1.5-2.0mm, is made of fluororubber, and is resistant to temperatures from -40℃ to 200℃; One end of the protective sleeve 201 is fitted with a bearing 209, which facilitates the connection with the rotor shaft 6.
[0020] A first screw 104 is threaded between the first connecting block 103 and the inner wall of one side of the cover 3, and the connecting assembly 1 is fixedly installed on the inner wall of one side of the cover 3 by the first connecting block 103 and the first screw 104.
[0021] The working principle of this embodiment is as follows: In use, firstly, the connecting assembly 1 is fixedly installed on the inner wall of one side of the cover 3 by a portion of the first connecting block 103 and the first screw 104. Then, the carbon brush assembly of the regulator 4 is inserted into the carbon brush port 202, and the carbon brush body 5 is located in the protective cylinder 201. Next, the slide cylinder 203 is sleeved with the connecting cylinder 102. Then, the second screw 210 is passed through the other portion of the first connecting block 103 and the second connecting block 204, thereby making a stable connection between the connecting assembly 1 and the sealing assembly 2. Then, the rotor shaft 6 is inserted into the bearing 209 and made to contact the carbon brush body 5. Finally, the cover 3 is connected to the generator housing to complete the assembly. The first sealing gasket 206, the first sealing cylinder 207 and the second sealing gasket 208 are used to perform multiple seals between the connecting assembly 1 and the sealing assembly 2 to prevent leakage.
[0022] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0023] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. An integral alternator carbon brush seal structure comprising a connecting assembly (1) and a sealing assembly (2), characterized in that, The connecting component (1) includes a mounting block (101), a connecting cylinder (102) is fixedly connected to one side of the mounting block (101), and a plurality of first connecting blocks (103) are fixedly connected to the circumference of the mounting block (101). The sealing component (2) includes a protective cylinder (201), a plurality of carbon brush ports (202) are provided on the circumference of the protective cylinder (201), a sliding cylinder (203) is fixedly connected to one end of the protective cylinder (201), the connecting cylinder (102) is inserted into the sliding cylinder (203), and a plurality of second connecting blocks (204) are fixedly connected to the outer circumference of the sliding cylinder (203).
2. An integral alternator carbon brush seal structure according to claim 1 wherein, One end of the protective cylinder (201) is fixedly connected to a pressure ring (205), and one end of the pressure ring (205) is provided with a first sealing gasket (206). One end of the connecting cylinder (102) is in contact with the first sealing gasket (206).
3. An integral alternator carbon brush seal structure as defined in claim 1 wherein, The inner circumferential wall of the slide cylinder (203) is bonded with a first sealing cylinder (207), and the inner wall of the first sealing cylinder (207) is in contact with the connecting cylinder (102) and the pressure ring (205).
4. The one-piece alternator carbon brush seal structure of claim 1 wherein, One end of the slide cylinder (203) is provided with a second sealing gasket (208), which is in contact with the mounting block (101).
5. The one-piece alternator carbon brush seal structure of claim 1 wherein, A bearing (209) is embedded at one end of the protective cylinder (201).
6. The one-piece alternator carbon brush seal structure of claim 1 wherein, The first connecting block (103) is threadedly connected to the inner wall of one side of the cover (3) by a first screw (104).
7. An integral alternator carbon brush seal structure as defined in claim 1 wherein, The second connecting block (204) is threadedly connected to the first connecting block (103) by a second screw (210).