A dustproof device for an automobile generator

By designing an automatic cleaning dustproof device, the problem of dust accumulation in the generator dustproof frame was solved, achieving efficient heat dissipation and convenient maintenance, and extending the service life of the equipment.

CN224438656UActive Publication Date: 2026-06-30JIANGXI BENTLEY MOTORS ELECTRIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGXI BENTLEY MOTORS ELECTRIC CO LTD
Filing Date
2025-07-17
Publication Date
2026-06-30

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Abstract

This utility model relates to the field of automotive generator technology, and more particularly to a dustproof device for an automotive generator. The utility model provides a dustproof device for an automotive generator, including a first dustproof shell, a second dustproof shell, a mounting plate, a motor, a rotating plate, a connecting plate, sliding rods, a dustproof frame, a brush, and springs. The second dustproof shell is installed on the right side of the first dustproof shell. The mounting plate is installed on the first dustproof shell, and the motor is installed inside the mounting plate. The motor output shaft is connected to the rotating plate, and the connecting plate is connected to the rotating plate. Multiple sliding rods are slidably connected at even intervals on the connecting plate. A dustproof frame is connected between the tops of three sliding rods, and a brush is installed inside the dustproof frame. The brush contacts and engages with the first dustproof shell. Springs connect each of the three sliding rods to the dustproof frame. By setting up an integrated protective structure composed of the first and second dustproof shells, external dust can be effectively prevented from entering the generator, ensuring the stable operation of its electrical components.
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Description

Technical Field

[0001] This utility model relates to the field of automotive generator technology, and in particular to a dustproof device for automotive generators. Background Technology

[0002] The automotive alternator is a key component of a vehicle's electrical system, responsible for supplying power to the vehicle's electrical system and charging the battery while the engine is running. It achieves this function by converting some of the engine's mechanical energy into electrical energy.

[0003] Although existing car generators are equipped with dustproof frames, a large amount of dust can easily accumulate on the surface of the dustproof frames after long-term operation. This dust may block the ventilation holes of the dustproof frames, affecting air circulation, thereby reducing the heat dissipation efficiency of the car generator, and may even cause the equipment to overheat and affect its normal operation.

[0004] To address the existing problems, there is a need to provide a dustproof device for automotive alternators with an automatic cleaning function. Utility Model Content

[0005] In order to overcome the drawback that dust adhering to the dustproof frame reduces the heat dissipation effect of the car generator, this utility model provides a dustproof device for the car generator.

[0006] The technical implementation scheme of this utility model is as follows: a dustproof device for an automotive generator, comprising a first dustproof shell, a second dustproof shell, a mounting plate, a motor, a rotating plate, a connecting plate, sliding rods, a dustproof frame, a brush, a spring, and a temperature sensor. The second dustproof shell is installed on the right side of the first dustproof shell. The mounting plate is installed on the first dustproof shell. The motor is installed inside the mounting plate. The output shaft of the motor is connected to the rotating plate. The connecting plate is connected to the rotating plate. Multiple sliding rods are slidably connected at even intervals on the connecting plate. A dustproof frame is connected between the tops of three sliding rods. A brush is installed inside the dustproof frame. The brush contacts and cooperates with the first dustproof shell. A spring is connected between each of the three sliding rods and the dustproof frame. A temperature sensor is installed inside both the first and second dustproof shells.

[0007] Furthermore, it also includes a guide frame, positioning plates, a collection frame, and pins. The guide frame is installed on the second dust cover. The guide frame has symmetrical docking holes at the front and back. Positioning plates are placed on both the front and back sides of the guide frame. The collection frame is connected between the left sides of the two positioning plates. Pins are snapped into both positioning plates. Both pins are engaged with the docking holes at the corresponding positions.

[0008] Furthermore, it also includes observation windows, which are symmetrically embedded on the front and back sides of the collection frame.

[0009] Furthermore, it also includes pull rings, with pull rings connected to the outer sides of both pins.

[0010] Furthermore, both the first and second dustproof shells have mounting holes symmetrically provided on their rear sides.

[0011] Furthermore, both the first and second dustproof shells are symmetrically connected with connecting blocks distributed horizontally.

[0012] The beneficial effects of this utility model are as follows: 1. By setting an integrated protective structure composed of a first dustproof shell and a second dustproof shell, it can effectively isolate external dust from entering the generator and ensure the stable operation of its electrical components. At the same time, an automatic cleaning component is integrated on the dustproof shell, including a motor-driven rotating plate and a dustproof frame with a brush. When the temperature rise is detected, the cleaning process can be automatically started to remove the dust attached to the surface of the dustproof shell, prevent the ventilation holes from being blocked, and significantly improve the heat dissipation efficiency of the generator. The brush component can be quickly disengaged and reset through a sliding rod and a spring, which facilitates daily cleaning and maintenance and extends its service life.

[0013] 2. The guide frame and detachable collection frame enable centralized collection of cleaned dust, and the collection status can be monitored in real time through the observation window, facilitating timely cleaning and maintenance. The collection frame is fixed by a pin and positioning plate, making replacement easy and improving the maintainability of the equipment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the mounting plate, rotating plate, and connecting plate of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the dustproof frame, brush, spring, and other components of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the second dustproof shell, temperature sensor, and guide frame of this utility model.

[0018] Figure 5 This is an exploded view of the collection frame and guide frame of this utility model.

[0019] In the attached diagrams: 1_First dustproof shell, 2_Second dustproof shell, 3_Mounting plate, 4_Motor, 5_Rotating plate, 6_Connecting plate, 7_Sliding rod, 8_Dustproof frame, 9_Brush, 10_Spring, 11_Temperature sensor, 12_Guide frame, 13_Mating hole, 14_Positioning plate, 15_Collection frame, 16_Pin, 17_Observation window, 18_Pull ring. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] Example: A dustproof device for an automotive generator, such as Figures 1-5 As shown, the device includes a first dust cover 1, a second dust cover 2, a mounting plate 3, a motor 4, a rotating plate 5, a connecting plate 6, a sliding rod 7, a dust cover frame 8, a brush 9, a spring 10, a temperature sensor 11, a guide frame 12, a positioning plate 14, a collection frame 15, a pin 16, an observation window 17, and a pull ring 18. The second dust cover 2 is installed on the right side of the first dust cover 1. The rear sides of both the first dust cover 1 and the second dust cover 2 have symmetrical mounting holes for fixing the entire dust cover device to the car alternator, enabling quick installation and removal. The first dust cover 1 and the second dust cover 2... The two dustproof shells 2 are symmetrically connected vertically and horizontally with connecting blocks to connect the structure between the two dustproof shells, enhancing overall stability and providing support points for the limiting components. The first dustproof shell 1 is equipped with a mounting plate 3, inside which a motor 4 is installed. The output shaft of the motor 4 is connected to a rotating plate 5, and a connecting plate 6 is connected to the rotating plate 5. Multiple sliding rods 7 are evenly spaced and slidably connected to the connecting plate 6. A dustproof frame 8 is connected between the tops of three sliding rods 7 to enclose scraped dust and prevent its spread. A brush 9 is installed inside the dustproof frame 8. The first dust cover 1 contacts and engages with the second dust cover 2 to remove attached dust and impurities. It is the core component for automatic cleaning. Springs 10 connect the three sliding rods 7 to the dust cover frame 8. Temperature sensors 11 are installed inside both the first and second dust cover 2 to monitor the internal temperature in real time. If an excessively high local temperature is detected, the cleaning mechanism or alarm signal can be triggered. A guide frame 12 is installed on the second dust cover 2 to guide dust from the dust cover frame 8 into the collection frame 15. Symmetrical docking holes 13 are provided on the guide frame 12. Positioning plates 14 are placed on both sides, and a collection frame 15 is connected between the left sides of the two positioning plates 14 to collect the dust and impurities scraped off by the brush 9 and discharged through the dustproof frame 8, which is convenient for regular cleaning and maintenance. Each of the two positioning plates 14 is fitted with a pin 16, and each of the two pins 16 is engaged with the corresponding docking hole 13. The front and rear sides of the collection frame 15 are symmetrically inlaid with observation windows 17, which allows the operator to observe the accumulation of dust inside in real time and determine whether cleaning is needed. Each of the two pins 16 is connected to a pull ring 18 on its outer side, which is convenient for manually pulling the pin 16.

[0022] When dust protection is required for the automotive generator 4, the operator first places the first dust cover 1 on the left side of the generator 4 and fixes it to the generator 4 through the mounting holes symmetrically arranged on its rear side. Then, the second dust cover 2 is installed on the right side of the generator 4 and fixed through the mounting holes on its rear side. Next, the connecting blocks on the first and second dust covers 1 and 2 are used to firmly connect them, thus completing the installation of the entire dust cover structure. After the dust cover is installed, it effectively prevents dust from entering the generator 4. Simultaneously, during the operation of the generator 4, two temperature sensors 11 continuously monitor the ambient temperature inside the housing. Once an abnormal increase in local temperature is detected, the motor 4 is started. Its output shaft drives the rotating plate 5 and all its connected components to rotate together. During rotation, the brush 9 installed inside the dust cover frame 8 automatically cleans the outer surfaces of the first and second dust covers 1 and 2, removing the attached dust. During this process, the scraped dust is surrounded by the dust cover frame 8, preventing dust dispersion. As the brush 9 continues to rotate above the second dust cover 2, the dust cover frame 8 is inverted, and the internal... The collected dust and impurities will fall into the guide frame 12 below under gravity, and finally into the collection frame 15 for centralized collection. After cleaning, the motor 4 is restarted to reset the rotating plate 5 and its components, and the brush 9 returns to its initial position, thus completing a complete automatic cleaning process. This function can effectively prevent dust accumulation, improve the heat dissipation efficiency of the dustproof housing, and ensure the normal operation of the generator 4. When it is necessary to replace or clean the collection frame 15, the operator only needs to pull the two pull rings 18 outward to drive the pin 16 out of the corresponding docking hole 13, and the lock is released. Remove the collection frame 15 for cleaning. After cleaning, put the collection frame 15 back in its original position and secure it with the two pins 16. In addition, if the brush 9 needs to be maintained or cleaned, push the dust cover 8 backward to move the three sliding rods 7 together and compress the multiple springs 10, so that the brush 9 is temporarily out of contact with the dust cover. At this time, the brush 9 can be cleaned. After cleaning, release the dust cover 8. The springs 10 will return to their original positions and move the sliding rods 7, the dust cover 8 and the brush 9 back to their original positions. The brush 9 will then re-adhere to the surface of the dust cover, completing the cleaning and resetting operation.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A dustproof device for an automotive generator, characterized in that: It includes a first dust cover (1), a second dust cover (2), a mounting plate (3), a motor (4), a rotating plate (5), a connecting plate (6), a sliding rod (7), a dust cover frame (8), a brush (9), a spring (10), and a temperature sensor (11). The second dust cover (2) is provided on the right side of the first dust cover (1). The mounting plate (3) is fixedly connected to the middle of the rear side of the first dust cover (1). The motor (4) is installed inside the mounting plate (3). The output shaft of the motor (4) is fixedly connected to the rotating plate (5). A connecting plate (6) is installed on the front side of the rotating plate (5). Three sliding rods (7) are evenly spaced and slidably connected on the left side of the connecting plate (6). A dustproof frame (8) is fixedly connected between the tops of the three sliding rods (7). A brush (9) is installed inside the dustproof frame (8). The brush (9) is in contact with the first dustproof shell (1). A spring (10) is connected between the three sliding rods (7) and the dustproof frame (8). Temperature sensors (11) are installed on the rear arms inside the first dustproof shell (1) and the second dustproof shell (2).

2. A dustproof device for an automotive generator according to claim 1, characterized in that: It also includes a guide frame (12), a positioning plate (14), a collection frame (15) and a pin (16). The guide frame (12) is fixedly connected to the right side of the second dust cover (2). The guide frame (12) has symmetrically opened docking holes (13) on the front and back. The positioning plates (14) are placed on both the front and back sides of the guide frame (12). The collection frame (15) is fixedly connected between the left sides of the two positioning plates (14). The pins (16) are snapped onto the two positioning plates (14). The two pins (16) are snapped into the docking holes (13) at the corresponding positions.

3. A dustproof device for an automotive generator according to claim 2, characterized in that: It also includes an observation window (17), with observation windows (17) symmetrically inlaid in the middle of the front and rear sides of the collection frame (15).

4. A dustproof device for an automotive generator according to claim 3, characterized in that: It also includes a pull ring (18), and the outer sides of the two pins (16) are connected to the pull ring (18).

5. A dustproof device for an automotive generator according to claim 4, characterized in that: The first dust cover (1) and the second dust cover (2) both have mounting holes symmetrically opened on the rear side.

6. A dustproof device for an automotive generator according to claim 5, characterized in that: Both the first dust cover (1) and the second dust cover (2) have connecting blocks symmetrically connected vertically and horizontally.