A structure of an automotive fan motor

Abstract

This utility model provides a structure for an automotive fan motor, relating to the field of automotive fan technology. It includes a frame with a heat dissipation mechanism inside. The heat dissipation mechanism includes a housing located inside the frame. An air intake shroud is fixedly connected to the right side of the housing, and the right side of the air intake shroud has evenly spaced air intake holes. A motor is housed inside the housing, and the motor's output end passes through the housing and is fixedly connected to a first fan blade located inside the air intake shroud. Several heat-conducting rings are fixedly connected to the outer surface of the motor. This automotive fan motor structure prevents dust from contaminating the motor while cooling the carbon brushes, where friction generates significant heat. This results in superior heat dissipation and cooling capabilities, preventing the motor from being affected by high temperatures during prolonged operation, thus improving the motor's lifespan and operational stability.

Description

Technical Field

[0001] This utility model relates to an automotive fan motor, specifically an automotive fan motor structure, and belongs to the field of automotive fan technology. Background Technology

[0002] To ensure the proper functioning of the car engine's cooling system, a car fan is installed at the front grille of the engine to dissipate heat from the radiator using air cooling. The car's internal electronic control system monitors the engine's operating temperature in real time. When the engine's operating temperature exceeds a certain value, the car fan will start working to cool it down. The car fan mainly consists of a motor and fan blades.

[0003] In existing automotive fan motors, to reduce the impact of dust and impurities, the motors are typically encased in a plastic shell. This results in poor heat dissipation, and given the motor's proximity to the engine and the significant heat it generates during operation, inadequate cooling can severely impact its lifespan and operational stability. Therefore, this paper proposes a new automotive fan motor structure. Utility Model Content

[0004] This utility model proposes a structure for an automotive fan motor to solve the problem that in the prior art, the automotive fan motor is wrapped in a plastic shell, resulting in poor heat dissipation capacity.

[0005] This utility model is achieved through the following technical solution: a structure for an automotive fan motor, including a frame, wherein a heat dissipation mechanism is provided inside the frame;

[0006] The heat dissipation mechanism includes a housing disposed inside a frame. An air intake shroud is fixedly connected to the right side of the housing. The right side of the air intake shroud has air intake holes arranged at equal intervals. A motor is disposed inside the housing. The output end of the motor passes through the housing and is fixedly connected to a first fan blade, which is disposed inside the air intake shroud. Several heat-conducting rings are fixedly connected to the outer surface of the motor. The outer surface of each heat-conducting ring is fixedly connected to the inner wall of the housing. Several ventilation pipes are fixedly connected to the inner walls of the several heat-conducting rings. The right end of each ventilation pipe passes through the interior of the air intake shroud, and the other end of each ventilation pipe passes through the exterior of the housing. A filter plate is fixedly connected to the inner wall of each ventilation pipe.

[0007] The frame is equipped with a cooling component.

[0008] The frame has a second fan blade inside, and the output end of the motor is fixedly connected to the left end of the second fan blade. Three mounting plates are fixedly connected to the outer surface of the frame, and each mounting plate has a mounting through hole on its right side.

[0009] The inner wall of the frame is fixedly connected with several stabilizing plates, and the other end of each stabilizing plate is fixedly connected to the outer surface of the shell.

[0010] An auxiliary bearing is fitted onto the outer surface of the motor output end, and the auxiliary bearing is fixedly embedded inside the housing.

[0011] The cooling assembly includes a cover plate, the right side of which contacts the left side of the housing. Several heat-conducting copper sheets are fixedly embedded inside the cover plate. One side of each heat-conducting copper sheet contacts the outer surface of the motor. Several heat dissipation grooves are formed on the outer surface of each heat-conducting copper sheet. A protective cover is fixedly connected to the left side of the cover plate. Several ventilation openings are formed on the outer surface of the protective cover. An extension rod is fixedly connected to the other output end of the motor. The extension rod is rotatably connected inside the protective cover. A third fan blade is fixedly connected to the outer surface of the extension rod.

[0012] The cover plate has several fastening bolts connected to its internal threads. The right end of each fastening bolt penetrates into the interior of the housing, and each fastening bolt is threadedly connected to the housing.

[0013] This utility model provides a structure for an automotive fan motor, which has the following beneficial effects:

[0014] This automotive fan motor structure utilizes a heat dissipation mechanism to effectively dissipate heat using the power generated by the motor's own rotation. Simultaneously, it prevents dust and impurities from contacting the motor body during heat dissipation. This increases the motor's heat dissipation capacity without compromising its dustproof sealing function. Furthermore, in conjunction with cooling components, it employs heat exchange principles to cool the carbon brushes, where friction generates significant heat, while preventing dust contamination of the motor. This results in superior heat dissipation during operation, preventing overheating during prolonged use and improving the motor's lifespan and operational stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the frame structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the protective cover of this utility model;

[0017] Figure 3This is a schematic cross-sectional view of the shell structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the auxiliary bearing and the first fan blade of this utility model after unfolding.

[0019] Explanation of reference numerals in the attached figures

[0020] 1. Framework;

[0021] 2. Heat dissipation mechanism; 201. Housing; 202. Air inlet shroud; 203. Air inlet hole; 204. Motor; 205. First fan blade; 206. Heat conduction ring; 207. Ventilation duct; 208. Filter plate; 209. Auxiliary bearing;

[0022] 3. Cooling components; 301. Cover plate; 302. Thermally conductive copper sheet; 303. Heat dissipation groove; 304. Protective cover; 305. Ventilation opening; 306. Extension rod; 307. Third fan blade; 308. Fastening bolts;

[0023] 4. Second blade; 5. Mounting plate; 6. Mounting through hole; 7. Stabilizing plate. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0025] Please see Figures 1-4 This utility model provides an automotive fan motor structure, including a frame 1, and a heat dissipation mechanism 2 is provided inside the frame 1;

[0026] The heat dissipation mechanism 2 includes a housing 201, which is disposed inside the frame 1. Several stabilizing plates 7 are fixedly connected to the inner wall of the frame 1. The other end of each stabilizing plate 7 is fixedly connected to the outer surface of the housing 201. The stabilizing plates 7 can stabilize the position of the housing 201 inside the frame 1, thereby increasing the reliability of the housing 201.

[0027] Please refer to this carefully. Figure 1 , Figure 2 and Figure 4An air intake shroud 202 is fixedly connected to the right side of the housing 201. An air intake hole 203 is provided on the right side of the air intake shroud 202 at equal intervals. A motor 204 is installed inside the housing 201. A second fan blade 4 is installed inside the frame 1. The output end of the motor 204 is fixedly connected to the left end of the second fan blade 4. Three mounting plates 5 are fixedly connected to the outer surface of the frame 1. Each mounting plate 5 has a mounting through hole 6 on its right side. The frame 1 can be fixed inside the car by using the mounting plates 5 and mounting through holes 6. When the motor 204 rotates, it can drive the second fan blade 4 to rotate, ensuring the normal operation of the air cooling heat dissipation inside the car.

[0028] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 The output end of the motor 204 passes through the housing 201 and is fixedly connected to a first fan blade 205. The first fan blade 205 is located inside the air intake shroud 202. Several heat-conducting rings 206 are fixedly connected to the outer surface of the motor 204. The outer surface of each heat-conducting ring 206 is fixedly connected to the inner wall of the housing 201. Several ventilation pipes 207 are fixedly connected to the inner walls of the several heat-conducting rings 206. The right end of each ventilation pipe 207 passes through the interior of the air intake shroud 202, and the other end of each ventilation pipe 207 passes through the exterior of the housing 201. A filter plate 208 is fixedly connected to the inner wall of each ventilation pipe 207. An auxiliary bearing 209 is sleeved on the outer surface of the output end of the motor 204. The auxiliary bearing 209 is fixedly embedded inside the housing 201. The auxiliary bearing 209 can reduce the friction between the output end of the motor 204 and the housing 201 without affecting the rotation of the motor 204.

[0029] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4The frame 1 contains a cooling component 3, which includes a cover plate 301. The right side of the cover plate 301 contacts the left side of the housing 201. Several heat-conducting copper sheets 302 are fixedly embedded inside the cover plate 301. One side of each heat-conducting copper sheet 302 contacts the outer surface of the motor 204. Several heat dissipation grooves 303 are formed on the outer surface of each heat-conducting copper sheet 302. A protective cover 304 is fixedly connected to the left side of the cover plate 301. Several ventilation openings 305 are formed on the outer surface of the protective cover 304. An extension rod 306 is fixedly connected to the other output end of the motor 204. The extension rod 306 is rotatably connected inside the protective cover 304. A third fan blade 307 is fixedly connected to the outer surface of 06. When the motor 204 rotates, the third fan blade 307 can be driven to rotate inside the protective cover 304 through the extension rod 306, thereby increasing the airflow inside the protective cover 304. This allows outside air to flow quickly around the heat-conducting copper sheet 302 through the vent 305. At this time, the heat generated by the friction of the carbon brush position of the motor 204 can be dissipated outward through the heat-conducting copper sheet 302 by the principle of heat exchange. In addition, the heat dissipation groove 303 can increase the contact area between the heat-conducting copper sheet 302 and the flowing air, increase the heat dissipation efficiency of the heat-conducting copper sheet 302, and enable the heat generated by the motor 204 to be better dissipated and cooled.

[0030] Please refer to this carefully. Figure 2 The cover plate 301 has several fastening bolts 308 connected to its internal threads. The right end of each fastening bolt 308 penetrates into the interior of the housing 201. Each fastening bolt 308 is threadedly connected to the housing 201. The fastening bolts 308 can fix the cover plate 301 to the housing 201, increasing the tightness of the connection between the cover plate 301 and the housing 201.

[0031] In use, this invention is first fixed to a car using the mounting plate 5 and mounting through hole 6. When air cooling of the car engine is required, the second fan blade 4 is rotated by the motor 204. When the motor 204 rotates, it also drives the first fan blade 205 to rotate inside the air intake shroud 202. The airflow generated by the rotation of the first fan blade 205 draws outside air into the air intake shroud 202 through the air intake hole 203 and blows it into the ventilation pipe 207, allowing the airflow to quickly pass through the ventilation pipe 207 and be exhausted outwards. At this time, the high-speed airflow inside the ventilation duct 207, in conjunction with the heat-conducting ring 206, can quickly displace the heat generated by the motor 204 during operation through heat exchange. At the same time, during the heat dissipation process, dust and impurities will not come into contact with the main body of the motor 204. Thus, without affecting the sealing and dustproof function of the automotive fan motor 204, the heat dissipation capacity of the automotive fan motor 204 itself can be increased. Furthermore, the filter plate 208 can ensure that the gas can be smoothly discharged from the ventilation duct 207 while preventing external impurities from entering the ventilation duct 207 and causing blockage.

[0032] During the operation of motor 204, the third fan blade 307 can also be driven to rotate inside the protective cover 304 via extension rod 306, thereby increasing the airflow inside the protective cover 304. This allows outside air to flow rapidly around the heat-conducting copper plate 302 through the vent 305. At this time, through the principle of heat exchange, the heat generated by the friction of the carbon brush position of motor 204 can be dissipated outward using the heat-conducting copper plate 302. Furthermore, the heat dissipation groove 303 can increase the contact area between the heat-conducting copper plate 302 and the flowing air, increasing the heat dissipation efficiency of the heat-conducting copper plate 302. This allows the heat generated by motor 204 during operation to be better dissipated and cooled, giving the automotive fan motor 204 a better heat dissipation and cooling capacity during use. This prevents the automotive fan motor 204 from being affected by high temperatures during long-term operation, improving the service life and operational stability of the automotive fan motor 204.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A structure for an automotive fan motor, comprising a frame (1), characterized in that: The frame (1) is equipped with a heat dissipation mechanism (2). The heat dissipation mechanism (2) includes a housing (201) disposed inside the frame (1). An air intake shroud (202) is fixedly connected to the right side of the housing (201). An air intake hole (203) is provided on the right side of the air intake shroud (202). A motor (204) is disposed inside the housing (201). The output end of the motor (204) passes through the housing (201) and is fixedly connected to a first fan blade (205). The first fan blade (205) is disposed inside the air intake shroud (202). A plurality of heat-conducting rings (206) are fixedly connected to the outer surface of the motor (204). The outer surface of each heat-conducting ring (206) is fixedly connected to the inner wall of the housing (201). A plurality of ventilation pipes (207) are fixedly connected to the inner wall of the plurality of heat-conducting rings (206). The right end of each ventilation pipe (207) extends into the interior of the air intake hood (202), and the other end of each ventilation pipe (207) extends into the exterior of the housing (201). A filter plate (208) is fixedly connected to the inner wall of each ventilation pipe (207). The frame (1) is equipped with a cooling component (3).

2. The automotive fan motor structure according to claim 1, characterized in that: The frame (1) is provided with a second fan blade (4) inside. The output end of the motor (204) is fixedly connected to the left end of the second fan blade (4). Three mounting plates (5) are fixedly connected to the outer surface of the frame (1). Each mounting plate (5) has a mounting through hole (6) on its right side.

3. The automotive fan motor structure according to claim 1, characterized in that: The inner wall of the frame (1) is fixedly connected with several stabilizing plates (7), and the other end of each stabilizing plate (7) is fixedly connected to the outer surface of the shell (201).

4. The automotive fan motor structure according to claim 1, characterized in that: An auxiliary bearing (209) is fitted on the outer surface of the output end of the motor (204), and the auxiliary bearing (209) is fixedly embedded inside the housing (201).

5. The automotive fan motor structure according to claim 1, characterized in that: The cooling component (3) includes a cover plate (301), the right side of which is in contact with the left side of the housing (201), and a number of heat-conducting copper sheets (302) are fixedly embedded inside the cover plate (301). One side of each heat-conducting copper sheet (302) is in contact with the outer surface of the motor (204). A number of heat dissipation grooves (303) are opened on the outer surface of each heat-conducting copper sheet (302). A protective cover (304) is fixedly connected to the left side of the cover plate (301). A number of ventilation openings (305) are opened on the outer surface of the protective cover (304). An extension rod (306) is fixedly connected to the other output end of the motor (204). The extension rod (306) is rotatably connected inside the protective cover (304). A third fan blade (307) is fixedly connected to the outer surface of the extension rod (306).

6. The automotive fan motor structure according to claim 5, characterized in that: The cover plate (301) has a plurality of fastening bolts (308) internally threaded. The right end of each fastening bolt (308) penetrates into the interior of the housing (201), and each fastening bolt (308) is threadedly connected to the housing (201).

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