Cooling and heat dissipation device for brushless windshield wiper motor

Abstract

The utility model relates to the technical field of heat dissipation devices, in particular to a cooling and heat dissipation device for a brushless windshield wiper motor. The technical problem is that a large amount of heat is generated in the operation process of an existing brushless motor, if the heat cannot be dissipated in time, the temperature of the motor rises, and then the performance and the service life of the motor are affected. According to the technical scheme, the cooling and heat dissipation device for the brushless windshield wiper motor comprises a shell, a fixed assembly and a rotating assembly, after all the components are installed, an arc-shaped sliding block drives fan blades to be in sliding connection with a rotating ring sleeve along an annular groove through driving of a driver, and therefore wind power is formed to drive airflow to enter the shell, and heat dissipation is achieved. And heat flow in the shell passes through the rectangular notch to flow out along the guide plate and is also dissipated through the plurality of heat dissipation holes, so that heat flow accumulation in the shell is avoided, the purpose of cooling the motor body is achieved, the performance of the motor body is improved, and the service life of the motor body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation devices, in particular to a cooling and heat dissipation device for a brushless wiper motor. Background Art

[0002] A brushless wiper motor is an automotive wiper system that uses electronic control technology to replace the traditional mechanical brush structure. In a traditional brushed motor, current is transmitted through a carbon brush between the rotor and the stator. This design may cause problems such as carbon brush wear, dust accumulation, and poor electrical contact over time. The brushless wiper motor, on the other hand, uses an electronic commutation system that utilizes Hall sensors or other electronic components to monitor the position of the rotor and accordingly control the switching of the motor, thereby achieving the steering and speed control of the motor. This design reduces mechanical wear, improves the efficiency and reliability of the motor, and at the same time reduces noise and maintenance requirements. Existing brushless motors generate a large amount of heat during operation. If this heat cannot be dissipated in time, it will cause the motor temperature to rise, thereby affecting the performance and lifespan of the motor. Therefore, we propose a cooling and heat dissipation device for a brushless wiper motor to solve the problems raised above. Content of the Utility Model

[0003] In order to overcome the problem that existing brushless motors generate a large amount of heat during operation. If this heat cannot be dissipated in time, it will cause the motor temperature to rise, thereby affecting the performance and lifespan of the motor.

[0004] The technical solution of the utility model is as follows: A cooling and heat dissipation device for a brushless wiper motor includes a housing, a fixing component, a rotating component, and a motor body. The outside of the motor body is sleeved with a fixing component for fixing the motor body to prevent the motor body from shaking inside the housing. The outside of the fixing component is sleeved with a housing for placing and protecting the motor body. One side of the housing is installed with a rotating component for rotating to form wind power to drive the air flow inside the housing to circulate.

[0005] Preferably, after the motor body is placed, pick up the cover plate, pass the shaft of the motor body through the round hole, and then the cover plate is positioned and connected to the housing through the insertion column passing through the insertion hole. After all the installations are completed, driven by the driver, the arc-shaped slider drives the fan blade to slide along the annular groove and the rotating ring sleeve, thereby forming wind power to drive the air flow into the housing. Then, the heat flow inside the housing passes through the rectangular notch and flows out along the diversion plate, and at the same time, it is also dissipated through multiple heat dissipation holes, avoiding the accumulation of heat flow inside the housing, so as to achieve the purpose of cooling the motor body, thereby improving the performance and lifespan of the motor body.

[0006] Preferably, a cover plate is provided on one side of the housing away from the rotating assembly. A plurality of plugging posts are installed around the edge of the side of the cover plate close to the housing. A circular hole for the shaft of the motor body to pass through is opened in the middle of the cover plate. Plugging holes corresponding to the plugging posts are opened on the side of the housing close to the cover plate. The cover plate is fixedly connected to the housing through the plugging posts passing through the plugging holes. A plurality of heat dissipation holes for heat dissipation are symmetrically opened horizontally on both sides of the housing. After the motor body is placed, pick up the cover plate, pass the shaft of the motor body through the circular hole, and then the cover plate is fixedly connected to the housing through the plugging posts passing through the plugging holes.

[0007] Preferably, a plurality of rectangular notches for heat flow to pass through are horizontally opened above the housing. A diversion plate for guiding heat flow is installed outside the rectangular notches. Four connecting holes for installing the fixing assembly are opened around the inner wall of the housing. Mounting holes for bolts to pass through are opened at the corners of the inner bottom of the housing. A fixing hole for installing the rotating assembly is opened in the middle of the side of the housing away from the cover plate. The housing is fixedly connected to the vehicle through bolts passing through the mounting holes to improve the stability of the heat dissipation device.

[0008] Preferably, the fixing assembly includes a telescopic sleeve, a rectangular rubber pad, an L-shaped telescopic column, a telescopic push column and a telescopic driver. Four groups of telescopic sleeves are arranged in a ring. An L-shaped telescopic column is sleeved and connected between every two groups of telescopic sleeves. A rectangular rubber pad for increasing friction and avoiding abrasion of the motor body is installed inside the telescopic sleeve. Pass the motor body through the space between the four groups of telescopic sleeves, and then drive through the telescopic driver. The telescopic push column drives the telescopic sleeve to move. At the same time, the L-shaped telescopic column moves and contracts along the telescopic sleeve, driving the rectangular rubber pad to approach and fit the motor body to fix and clamp the motor body. The rectangular rubber pad can increase friction and avoid abrasion of the motor body.

[0009] Preferably, a telescopic push column is installed in the middle of the outer side of the telescopic sleeve. One end of the telescopic push column away from the telescopic sleeve is installed with a telescopic driver. The telescopic driver is fixedly connected to the housing through the connecting hole, avoiding the motor body shaking inside the housing, resulting in the motor body being knocked and affecting the service life of the motor body. Moreover, after fixing, the motor body is suspended inside the housing, which can effectively dissipate heat and cool it comprehensively.

[0010] Preferably, the rotating assembly includes a rotating ring sleeve, a connecting ring sleeve, a fan blade and an arc-shaped slider. The rotating ring sleeve is fixedly connected to the housing through the fixing hole. An annular groove is opened on the inner wall of the rotating ring sleeve. A connecting ring sleeve is arranged in the middle of the inner side of the rotating ring sleeve. After all the installations are completed, driven by the driver, the arc-shaped slider drives the fan blade to slide along the annular groove and the rotating ring sleeve, thereby forming wind power to drive the air flow into the housing. Then the heat flow inside the housing passes through the rectangular notch and flows out along the diversion plate.

[0011] Preferably, multiple groups of fan blades are installed around the outside of the connecting ring sleeve. An arc-shaped slider is installed at one end of the fan blade away from the connecting ring sleeve. A driver is installed inside the arc-shaped slider. The arc-shaped slider drives the fan blade to be slidably connected with the rotating ring sleeve along the annular groove, and at the same time, it is also dissipated through multiple heat dissipation holes, avoiding the accumulation of heat flow inside the housing, so as to achieve the purpose of cooling the motor body, thereby improving the performance and service life of the motor body.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. Different from the situation in the past where a large amount of heat is generated during the operation of a brushless motor, if this heat cannot be dissipated in time, it will cause the temperature of the motor to rise, thereby affecting the performance and service life of the motor. When the motor body is placed, pick up the cover plate, pass the shaft of the motor body through the round hole, and then the cover plate is positioned and connected to the housing through the insertion posts passing through the insertion holes. After all the installations are completed, driven by the driver, the arc-shaped slider drives the fan blade to be slidably connected with the rotating ring sleeve along the annular groove, thereby forming wind power to drive the air flow into the housing. Then, the heat flow inside the housing passes through the rectangular notch and flows out along the guide plate, and at the same time, it is also dissipated through multiple heat dissipation holes, avoiding the accumulation of heat flow inside the housing, so as to achieve the purpose of cooling the motor body, thereby improving the performance and service life of the motor body.

[0014] 2. First, connect the housing to the vehicle through bolts passing through the mounting holes. Then, pass the motor body through between the four sets of telescopic sleeves. Then, driven by the telescopic driver, the telescopic push post drives the telescopic sleeve to move. At the same time, the L-shaped telescopic column moves and contracts along the telescopic sleeve, driving the rectangular rubber pad to approach and fit the motor body to fix and clamp the motor body. The rectangular rubber pad can increase the friction while avoiding wearing the motor body. During the fixing process, it can prevent the motor body from shaking inside the housing, resulting in the motor body being knocked and affecting the service life of the motor body. Moreover, after the fixing is completed, the motor body is suspended inside the housing, which can effectively dissipate heat and cool it comprehensively. Description of the Drawings

[0015] Figure 1 is an exploded view of the overall structure of the present utility model;

[0016] Figure 2 is another exploded view of the overall structure of the present utility model from another angle;

[0017] Figure 3 is a schematic diagram of the guide plate structure of the present utility model;

[0018] Figure 4 is a schematic diagram of the housing structure of the present utility model;

[0019] Figure 5Schematic structural diagram of the fixing component of the present utility model;

[0020] Figure 6 Exploded schematic structural diagram of the rotating component of the present utility model.

[0021] Explanation of reference numerals: 1, housing; 2, fixing component; 3, rotating component; 4, motor body; 101, cover plate; 102, plug post; 103, round hole; 104, plug hole; 105, heat dissipation hole; 106, rectangular notch; 107, flow guide plate; 108, connection hole; 109, mounting hole; 110, fixing hole; 201, telescopic sleeve; 202, rectangular rubber pad; 203, L-shaped telescopic column; 204, telescopic push column; 205, telescopic driver; 301, rotating ring sleeve; 302, annular groove; 303, connecting ring sleeve; 304, fan blade; 305, arc-shaped slider. Specific embodiments

[0022] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] Please refer to Figures 1-4 , the present utility model provides an embodiment: a temperature reduction and heat dissipation device for a brushless wiper motor, including a housing 1, a fixing component 2, a rotating component 3 and a motor body 4; a fixing component 2 for fixing the motor body 4 to prevent the motor body 4 from shaking inside the housing 1 is sleeved outside the motor body 4, a housing 1 for placing and protecting the motor body 4 is sleeved outside the fixing component 2, a rotating component 3 for rotating to form wind power to drive the air flow inside the housing 1 to circulate is installed on one side of the housing 1, a cover plate 101 is provided on the side of the housing 1 away from the rotating component 3, a plurality of plug posts 102 are installed around the edge of the side of the cover plate 101 close to the housing 1, a round hole 103 for the shaft of the motor body 4 to pass through is opened in the middle of the cover plate 101, a plug hole 104 for the plug post 102 to pass through is opened in the side of the housing 1 corresponding to the plug post 102, the cover plate 101 is positioned and connected to the housing 1 through the plug post 102 passing through the plug hole 104, a plurality of heat dissipation holes 105 for heat flow to dissipate are symmetrically opened horizontally on both sides of the housing 1, a plurality of rectangular notches 106 for heat flow to pass through are opened horizontally above the housing 1, a flow guide plate 107 for guiding heat flow is installed outside the rectangular notch 106, four connection holes 108 for installing the fixing component 2 are opened around the inner wall of the housing 1, mounting holes 109 for bolts to pass through are opened at the corners of the inner bottom of the housing 1, and a fixing hole 110 for installing the rotating component 3 is opened in the middle of the side of the housing 1 away from the cover plate 101.

[0024] Please refer to Figures 5-6, in this embodiment, the fixing component 2 includes a telescopic sleeve 201, a rectangular rubber pad 202, an L-shaped telescopic column 203, a telescopic push column 204, and a telescopic driver 205 (the model of the telescopic driver 205 is AQMD6030BLS-E3). There are four groups of telescopic sleeves 201 arranged in a surrounding manner. An L-shaped telescopic column 203 is sleeved and connected between every two groups of telescopic sleeves 201. A rectangular rubber pad 202 for increasing friction and avoiding abrasion of the motor body 4 is installed inside the telescopic sleeve 201. A telescopic push column 204 is installed in the middle of the outer side of the telescopic sleeve 201. One end of the telescopic push column 204 away from the telescopic sleeve 201 is installed with a telescopic driver 205. The telescopic driver 205 is fixedly connected to the housing 1 through a connection hole 108. The rotating component 3 includes a rotating ring sleeve 301, a connecting ring sleeve 303, fan blades 304, and an arc-shaped slider 305. The rotating ring sleeve 301 is fixedly connected to the housing 1 through a fixing hole 110. An annular groove 302 is formed in the inner wall of the rotating ring sleeve 301. A connecting ring sleeve 303 is arranged in the middle of the inner side of the rotating ring sleeve 301. A plurality of groups of fan blades 304 are installed around the outside of the connecting ring sleeve 303. An arc-shaped slider 305 is installed at one end of the fan blade 304 away from the connecting ring sleeve 303. A driver is installed inside the arc-shaped slider 305. The arc-shaped slider 305 drives the fan blade 304 to be slidably connected to the rotating ring sleeve 301 along the annular groove 302.

[0025] When working, first positionally connect the housing 1 to the vehicle by passing bolts through the mounting holes 109. Then pass the motor body 4 through the space between the four groups of telescopic sleeves 201. Next, through the drive of the telescopic driver 205, the telescopic push column 204 drives the telescopic sleeve 201 to move. At the same time, the L-shaped telescopic column 203 moves and contracts along the telescopic sleeve 201, driving the rectangular rubber pad 202 to approach and fit the motor body 4, thereby fixedly clamping the motor body 4. The rectangular rubber pad 202 can increase friction while avoiding abrasion of the motor body 4. During the fixing process, it can prevent the motor body 4 from shaking inside the housing 1, resulting in the motor body 4 being knocked and affecting the service life of the motor body 4. Moreover, after the fixing is completed, the motor body 4 is suspended inside the housing 1, which can effectively dissipate heat and cool it comprehensively;

[0026] After the motor body 4 is placed, pick up the cover plate 101, pass the shaft of the motor body 4 through the round hole 103, and then the cover plate 101 passes through the insertion hole 104 through the insertion post 102 to be positioned and connected with the housing 1. After all the installations are completed, driven by the driver, the arc-shaped slider 305 drives the fan blade 304 to slide along the annular groove 302 and the rotating ring sleeve 301, thereby forming wind power to drive the air flow into the interior of the housing 1. Then, the heat flow inside the housing 1 passes through the rectangular notch 106 and flows out along the flow guide plate 107, and at the same time, it also dissipates through a plurality of heat dissipation holes 105, avoiding the accumulation of heat flow inside the housing 1, so as to achieve the purpose of cooling the motor body 4, thereby improving the performance and service life of the motor body 4.

[0027] Through the above steps, after the motor body 4 is placed, pick up the cover plate 101, pass the shaft of the motor body 4 through the round hole 103, and then the cover plate 101 passes through the insertion hole 104 through the insertion post 102 to be positioned and connected with the housing 1. After all the installations are completed, driven by the driver, the arc-shaped slider 305 drives the fan blade 304 to slide along the annular groove 302 and the rotating ring sleeve 301, thereby forming wind power to drive the air flow into the interior of the housing 1. Then, the heat flow inside the housing 1 passes through the rectangular notch 106 and flows out along the flow guide plate 107, and at the same time, it also dissipates through a plurality of heat dissipation holes 105, avoiding the accumulation of heat flow inside the housing 1, so as to achieve the purpose of cooling the motor body 4, thereby improving the performance and service life of the motor body 4.

[0028] The above has described in detail the embodiments of the present invention in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the gist of the present invention.

Claims

1. A cooling and heat dissipation device for a brushless wiper motor, comprising a housing (1); characterized in that: It also includes a fixing component (2), a rotating component (3) and a motor body (4); an outer sleeve of the motor body (4) is provided with a fixing component (2) for fixing the motor body (4) to prevent the motor body (4) from shaking inside the housing (1), an outer sleeve of the fixing component (2) is provided with a housing (1) for placing and protecting the motor body (4), and a rotating component (3) for rotating to form wind power to drive the air flow inside the housing (1) to circulate is installed on one side of the housing (1).

2. The cooling and heat dissipation device for a brushless wiper motor according to claim 1, wherein: A cover plate (101) is provided on one side of the housing (1) away from the rotating component (3). A plurality of plugging columns (102) are installed around the edge of the side of the cover plate (101) close to the housing (1). A round hole (103) for the shaft of the motor body (4) to pass through is opened in the middle of the cover plate (101). Plugging holes (104) for the plugging columns (102) to pass through are correspondingly opened on the side of the housing (1) close to the cover plate (101). The cover plate (101) is positioned and connected to the housing (1) by the plugging columns (102) passing through the plugging holes (104). A plurality of heat dissipation holes (105) for heat flow to dissipate are symmetrically opened horizontally on both sides of the housing (1).

3. The cooling and heat dissipation device for a brushless windshield wiper motor according to claim 1, wherein: A plurality of rectangular notches (106) for heat flow to pass through are opened horizontally above the housing (1). A diversion plate (107) for guiding the heat flow is installed outside the rectangular notches (106). Four connecting holes (108) for installing the fixing component (2) are opened around the inner wall of the housing (1). Mounting holes (109) for bolts to pass through are opened at the corners of the inner bottom of the housing (1). A fixing hole (110) for installing the rotating component (3) is opened in the middle of the side of the housing (1) away from the cover plate (101).

4. A cooling and heat dissipation device for a brushless wiper motor according to claim 1, characterized in that: The fixing component (2) includes a telescopic sleeve (201), a rectangular rubber pad (202), an L-shaped telescopic column (203), a telescopic push column (204) and a telescopic driver (205). Four groups of telescopic sleeves (201) are provided in a surrounding manner. An L-shaped telescopic column (203) is sleeved and connected between every two groups of telescopic sleeves (201). A rectangular rubber pad (202) for increasing friction to prevent wear of the motor body (4) is installed inside the telescopic sleeve (201).

5. The cooling and heat dissipation device for a brushless wiper motor according to claim 4, characterized in that: A telescopic push column (204) is installed in the middle of the outer side of the telescopic sleeve (201). A telescopic driver (205) is installed at one end of the telescopic push column (204) away from the telescopic sleeve (201). The telescopic driver (205) is fixedly connected to the housing (1) through the connecting hole (108).

6. The cooling and heat dissipation device for a brushless wiper motor according to claim 3, characterized in that: The rotating component (3) includes a rotating ring sleeve (301), a connecting ring sleeve (303), fan blades (304) and arc-shaped sliders (305). The rotating ring sleeve (301) is fixedly connected to the housing (1) through the fixing hole (110). An annular groove (302) is opened on the inner wall of the rotating ring sleeve (301). A connecting ring sleeve (303) is provided in the middle of the inner side of the rotating ring sleeve (301).

7. The cooling and heat dissipation device for a brushless wiper motor according to claim 6, wherein: Multiple groups of fan blades (304) are installed around the outside of the connecting collar (303). An arc-shaped slider (305) is installed at one end of the fan blade (304) away from the connecting collar (303). A driver is installed inside the arc-shaped slider (305), and the arc-shaped slider (305) drives the fan blade (304) to be slidably connected to the rotating collar (301) along the annular groove (302).

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