Automobile generator carbon brush holder with heat dissipation structure

Abstract

The utility model discloses an automobile generator carbon brush holder with a heat dissipation structure, which comprises a positioning assembly and a carbon brush block, and the positioning assembly comprises a fixed disc, a flow guide ring group and a positioning ring and is connected with the carbon brush block through a guide seat to ensure the stable movement of the carbon brush block. The heat conduction cushion layer is arranged on the inner side of the guide base, effective heat conduction performance is provided, and rapid heat dissipation is guaranteed. In addition, a plurality of fin flow pieces are arranged on the surface of the flow guide ring set, the airflow path is optimized through a flow channel, and the heat dissipation effect is enhanced. Flow guide holes are formed in the inner sides of the positioning assembly and the positioning ring, the air flowing effect is further improved, and the good heat dissipation performance is achieved. By optimizing the structural design and material selection, the heat dissipation efficiency of the carbon brush holder is effectively improved, the overheating risk is reduced, the service life of the generator is prolonged, and the carbon brush holder has the advantages of simple structure, excellent heat dissipation performance, strong adaptability and the like, and is widely applied to automobile generator systems in high-load and high-temperature environments.

Description

Technical Field

[0001] This utility model relates to the field of automotive generator technology, specifically to a carbon brush holder for an automotive generator with a heat dissipation structure. Background Technology

[0002] In modern automotive generator systems, the carbon brush holder, as a key component for power transmission, is responsible for carrying current. The proper functioning of the carbon brush holder directly affects the generator's performance and stability. With the increasing complexity of automotive electrical systems, generators generate significant heat during operation, especially under prolonged high-load conditions. This accumulated temperature causes considerable thermal stress on the carbon brush holder, potentially leading to damage and consequently affecting the overall operational stability of the generator.

[0003] Currently, most automotive alternator brush holder designs focus on the structural function of the brushes and brush holders, neglecting the heat dissipation issue of the brush holder under high-temperature environments. Although existing technologies incorporate some heat dissipation designs, they generally suffer from uneven heat dissipation, insufficient heat dissipation area, and low heat dissipation efficiency. These problems lead to overheating of the alternator after prolonged operation, thus shortening its lifespan and affecting vehicle performance.

[0004] Existing carbon brush holder cooling structures typically rely on traditional ventilation holes or simple heat sinks. However, these designs often fail to meet the cooling requirements of high-power, high-temperature environments, especially when a car is traveling at high speeds, as the alternator is under heavy load and the cooling problem becomes particularly prominent. Furthermore, some existing cooling structures are quite complex, making it difficult to control manufacturing costs and process complexity while ensuring effective cooling.

[0005] Therefore, there is an urgent need for a new type of carbon brush holder for automotive alternators that can effectively improve heat dissipation, extend the service life of the brush holder, and enhance the operational stability of the alternator. This new carbon brush holder should have a relatively simple structural design, while achieving high levels of heat dissipation performance, stability, and economy to meet the requirements of modern automobiles for high efficiency and long lifespan of alternator systems.

[0006] In view of this, we have studied and improved the existing problems and provided a carbon brush holder for automotive alternators with a heat dissipation structure to solve the current problems. The aim of this technology is to solve the problems and improve the practical value. Utility Model Content

[0007] This utility model relates to a carbon brush holder for automotive generators with a heat dissipation structure, aiming to solve the problems of poor heat dissipation and excessive temperature that can easily damage the equipment in existing automotive generator carbon brush holders, and to provide a carbon brush holder with efficient heat dissipation function.

[0008] The technical solution of this utility model includes: a positioning component and a carbon brush block. The positioning component includes a fixed disk, a guide ring assembly, and a positioning ring arranged concentrically. Several guide seats are fixedly installed on the surface of the positioning ring. The carbon brush block is slidably sleeved on the inner side of the guide seats. Elastic rings are sleeved on the surfaces of the guide seats. A thermally conductive pad layer that fits against the surface of the elastic ring is provided on the inner side of the guide seats for effective heat dissipation.

[0009] The surface of the guide ring assembly is provided with several fins evenly arranged in a circumferential direction, and flow channels are provided between adjacent fins. The flow channel design optimizes the airflow path and improves heat dissipation efficiency. In addition, the inner side of the positioning component and the inner side of the positioning ring are provided with several first guide holes and second guide holes, and the first guide holes and second guide holes are respectively connected to the two ends of each flow channel, effectively guiding the cooling airflow through each heat dissipation part, further enhancing the heat dissipation effect; the first guide holes and second guide holes are through-hole structures.

[0010] The elastic ring is made of copper, which ensures good thermal conductivity and improves overall heat dissipation. The positioning ring is also made of copper, ensuring the stability and durability of the carbon brush holder, while providing a good foundation for heat dissipation; the elastic ring has an elastic ring structure.

[0011] This structural design effectively enhances the heat dissipation of the carbon brush holder, reduces the risk of overheating during generator operation, and improves equipment stability and service life. It is suitable for carbon brush holders used in automotive generators, performing particularly well under high load and high temperature environments, thus meeting the requirements for efficient heat dissipation.

[0012] The beneficial effects achieved by this utility model are as follows:

[0013] 1. In this utility model, by reasonably arranging the heat dissipation structure between the positioning component and the carbon brush block, the flow guide ring assembly can effectively increase airflow, improve heat conduction and dissipation, reduce the working temperature of the carbon brush holder, and avoid overheating damage to the internal components of the generator.

[0014] 2. In this utility model, the thermally conductive pad layer made of metallic copper and ceramic gasket structure provides excellent thermal conductivity, ensuring that heat can be quickly conducted and effectively dissipated, reducing the risk of equipment overheating. The improved heat dissipation performance can effectively delay equipment failure caused by overheating, thereby improving the long-term operational stability of the automotive generator carbon brush holder and extending its service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0016] Figure 2This is an exploded structural diagram of one embodiment of the present invention;

[0017] Figure 3 This is a schematic diagram of the surface structure of a positioning component according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the back structure of the positioning component according to an embodiment of the present invention.

[0019] Figure label:

[0020] 100. Positioning assembly; 110. Fixing plate; 120. Flow guide ring assembly; 130. Positioning ring; 121. First flow guide hole; 122. Second flow guide hole; 123. Flow channel; 124. Flanged vane;

[0021] 200, carbon brush block; 300, elastic ring; 400, guide seat. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0023] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0024] The following is in conjunction with the appendix Figures 1 to 4 This invention describes a carbon brush holder for an automotive alternator with a heat dissipation structure, provided by some embodiments of the present invention.

[0025] In this embodiment, the positioning component 100 includes a fixed disk 110, a guide ring assembly 120, and a positioning ring 130. The fixed disk 110 and the guide ring assembly 120 are made of metal and have good thermal conductivity. A plurality of guide seats 400 are fixedly mounted on the surface of the positioning ring 130, and cooperate with the carbon brush block 200, slidingly engaging with the inner side of the guide seats 400 to form a sliding contact structure for the carbon brush.

[0026] The inner side of the guide seat 400 is provided with a thermally conductive pad layer that fits against the surface of the elastic ring 300. The thermally conductive pad layer has a ceramic gasket structure, which provides good thermal conductivity and also serves as insulation and protection, ensuring the stable operation of the carbon brush holder. In this structure, the elastic ring 300, as an elastic component, plays a role in controlling the radial movement of the carbon brush block 200, ensuring stable contact of the carbon brush and achieving a certain degree of electrical conductivity.

[0027] The surface of the airflow guide ring assembly 120 is provided with a plurality of fins 124 evenly arranged in a circumferential direction. These fins effectively increase the heat dissipation surface area and optimize the airflow path. Flow channels 123 are provided between adjacent fins 124 to make the airflow smoother and further improve the heat dissipation effect.

[0028] Several first guide holes 121 and second guide holes 122 are provided on the inner side of the positioning component 100 and the inner side of the positioning ring 130. The connection between these guide holes and the flow channel 123 is reasonably designed to ensure smooth airflow and further optimize the cooling effect. The first guide holes 121 and the second guide holes 122 are through hole structures.

[0029] In this embodiment, to improve heat dissipation performance, both the fixed plate 110 and the guide ring assembly 120 are made of metal, particularly copper. Copper has excellent thermal conductivity, which helps to quickly transfer heat from the inside of the carbon brush holder to the outside, further improving the heat dissipation effect.

[0030] Furthermore, the elastic ring 300 is made of copper, which improves the thermal conductivity of the entire component and increases structural stability. The positioning ring 130 and the guide seat 400 are also made of copper to ensure long-term efficient heat dissipation and withstand the working environment pressure of an automotive alternator; the elastic ring 300 has an elastic ring structure.

[0031] The arrangement angle of the fins 124 is 30° to 45°. This angle design is optimized to allow airflow to flow along a suitable path, increasing the speed and area of ​​airflow over the heat dissipation components and significantly improving the heat dissipation effect.

[0032] In another embodiment, considering the needs of different working environments, the inner thermally conductive pad layer of the guide seat 400 slides against the surface of the guide seat 400, and the thermally conductive pad layer is a ceramic gasket structure. Ceramic gaskets provide excellent thermal conductivity, while also having an insulating function to prevent current leakage from affecting the equipment, and possessing strong high-temperature resistance, making them suitable for use in high-temperature environments.

[0033] The fins 124 are arranged at a 45° angle, the same direction as the rotor of a car generator. This arrangement helps to better guide airflow and further improves heat dissipation by optimizing airflow.

[0034] The optimization of the airflow path, through the size and distribution configuration of the first guide hole 121 and the second guide hole 122, allows the airflow to smoothly enter the flow channel 123 and flow directly through the heat dissipation component to achieve a uniform heat dissipation effect; the first guide hole 121 and the second guide hole 122 are through hole structures.

[0035] In this embodiment, to further improve heat dissipation, a heat dissipation fin structure is provided on the outer side of the fixing disk 110 and the airflow guide ring assembly 120 of the positioning component 100. The fin design can effectively increase the heat dissipation surface area, enhance airflow, and improve the overall heat dissipation performance. These heat dissipation fins are evenly distributed along the circumferential direction, and combined with the existing heat dissipation structure, a more significant heat dissipation effect is achieved.

[0036] Through the above embodiments, the carbon brush holder for automotive generators provided by this utility model has excellent heat dissipation performance, which can not only improve the stability and service life of the equipment, but also show good adaptability and reliability in practical applications, especially suitable for use in high-load and high-temperature working environments.

[0037] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Although embodiments of the present invention have been shown and described, those skilled in the art will understand 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 claims and their equivalents.

Claims

1. A carbon brush holder for an automobile generator having a heat dissipating structure, comprising: The positioning component (100) and carbon brush block (200) are characterized in that the positioning component (100) includes a fixed disk (110), a guide ring assembly (120), and a positioning ring (130) arranged concentrically. A plurality of guide seats (400) are fixedly mounted on the surface of the positioning ring (130). The carbon brush block (200) is slidably sleeved on the inner side of the guide seats (400). Elastic rings (300) are sleeved on the surfaces of the plurality of guide seats (400). The inner side of each guide seat (400) is provided with a connection to the elastic ring. (300) A heat-conducting pad layer is attached to the surface. The surface of the flow guide ring group (120) is provided with a number of fins (124) evenly arranged in a circumferential direction, and a flow channel (123) is provided between adjacent fins (124). The inner side of the positioning component (100) and the inner side of the positioning ring (130) are provided with a number of first flow guide holes (121) and second flow guide holes (122), and the first flow guide holes (121) and second flow guide holes (122) are respectively connected to the two ends of each flow channel (123).

2. The carbon brush holder of the automobile generator with the heat radiation structure according to claim 1, characterized in that, The elastic ring (300) and positioning ring (130) are made of copper, and the fixed disk (110) and guide ring assembly (120) are made of metal.

3. The carbon brush holder of the automobile generator with the heat radiation structure according to claim 1, characterized in that, The inner heat-conducting pad layer of the guide seat (400) slides against the surface of the guide seat (400), and the heat-conducting pad layer is a ceramic gasket structure for the insulation protection of the guide seat (400). The guide seat (400) and the carbon brush block (200) are arranged radially.

4. The carbon brush holder of the automobile generator with the heat radiation structure according to claim 1, characterized in that, The elastic ring (300) is an elastic ring structure used to control the radial movement of each carbon brush block (200).

5. The carbon brush holder of the automobile generator with the heat radiation structure according to claim 1, characterized in that, Several of the fins (124) are arranged at an angle, and the fins (124) are tilted in the same direction as the rotor rotation of the automobile generator.

6. The carbon brush holder of the automobile generator with the heat radiation structure according to claim 1, characterized in that, The first guide hole (121) and the second guide hole (122) are through holes, and their size and distribution are matched with the flow channels (123) to optimize the airflow path.

7. The carbon brush holder of the automobile generator with the heat radiation structure according to claim 1, characterized in that, The fins (124) are arranged at an angle of 30° to 45° to optimize airflow and heat dissipation.

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