Stable car lamp cooling fan

Abstract

The utility model relates to a stable car lamp cooling fan which comprises a mounting plate and a fixing column arranged on the mounting plate, a driving shaft is rotationally installed in the fixing column, a connecting frame is fixedly installed at the end of the driving shaft, a permanent magnet ring is fixedly installed in the connecting frame, and a stator winding matched with the permanent magnet ring is arranged on the fixing column. A connecting ring matched with the fixing column is arranged in the stator winding, a limiting groove is formed in an inner hole of the connecting ring, and a limiting strip matched with the limiting groove is arranged on the outer surface of the fixing column; a plurality of connecting blocks are arranged at one end of the stator winding, and insertion holes matched with the connecting blocks are formed in the mounting plate; and the connecting block is inserted into the insertion hole and forms a riveting point on one side of the mounting plate. The limiting grooves and the limiting strips are matched to prevent the stator winding from rotating around the fixed column; the limiting and guiding effects are achieved; meanwhile, when the connecting block is inserted into the insertion hole, a riveting point is formed on one side of the mounting plate; therefore, the stator winding is prevented from being separated from the mounting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of headlight heat dissipation devices, especially a stable headlight cooling fan. Background Technique

[0002] In the existing cooling fan, the stator winding is arranged on the fixed column of the base and fixed, and the permanent magnet ring is fixed inside the wind wheel. The permanent magnet ring and the wind wheel rotate synchronously. The existing fixing method of the stator winding is to fix the permanent magnet ring by interference fit and glue bonding.

[0003] Since the cooling fan of the utility model is used to be installed in the automobile headlight, when the automobile headlight works, a large amount of heat will be generated. As a result, when the cooling fan works in a high-temperature environment for a long time, the stability between the automobile headlight and the fixed column will be reduced, and it will have a loose phenomenon. When the automobile headlight and the fixed column become loose, it will directly affect the heat dissipation efficiency of the cooling fan, and even the stator winding will rotate around the fixed column, resulting in the winding on the stator winding falling off from the PCB board on the base and stopping working. Content of the Utility Model

[0004] The purpose of the utility model is to provide a stable headlight cooling fan to solve the problems mentioned in the above background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a stable headlight cooling fan, including a mounting plate and fixed columns arranged on the mounting plate. A driving shaft is rotatably installed in the fixed column. A connecting frame is fixedly installed at the end of the driving shaft. A permanent magnet ring is fixedly installed in the connecting frame. A stator winding adapted to the permanent magnet ring is arranged on the fixed column. A connecting hole adapted to the fixed column is arranged in the stator winding. A limiting groove is arranged in the connecting hole. A limiting strip adapted to the limiting groove is arranged on the outer surface of the fixed column. One end of the stator winding is provided with a plurality of connecting blocks. Interpenetrating holes adapted to the connecting blocks are arranged on the mounting plate. The connecting blocks penetrate through the interpenetrating holes and form riveting points on one side of the mounting plate.

[0006] Compared with the prior art, a connecting hole is arranged in the stator winding, a limiting groove is arranged in the connecting hole, and a limiting strip adapted to the limiting groove is arranged on the outer surface of the fixed column. The cooperation of the limiting groove and the limiting strip prevents the stator winding from rotating around the fixed column, playing a role of limiting and guiding. At the same time, one end of the stator winding is provided with a plurality of connecting blocks, and interpenetrating holes adapted to the connecting blocks are arranged on the mounting plate. When the connecting blocks penetrate through the interpenetrating holes and form riveting points on one side of the mounting plate, it can prevent the stator winding from separating from the mounting plate.

[0007] As an improvement to the stable headlight cooling fan of the present utility model, the stator winding includes a skeleton and a winding wire wound around the skeleton. A plurality of winding columns are evenly distributed on the outer circular surface of the skeleton. Magnetic pole heads are provided at the ends of the winding columns. A winding groove is provided between the magnetic pole heads and the stabilizing columns. The winding wire is wound around the winding columns and is located within the winding groove.

[0008] As an improvement to the stable headlight cooling fan of the present utility model, the skeleton includes an upper connecting frame and a lower connecting frame. An iron core is provided between the upper connecting frame and the lower connecting frame. Clamping grooves adapted to the iron core are provided on both the upper connecting frame and the lower connecting frame.

[0009] As an improvement to the stable headlight cooling fan of the present utility model, a stabilizing column is provided at the center of the iron core, and a connecting hole is provided at the center of the stabilizing column.

[0010] As an improvement to the stable headlight cooling fan of the present utility model, the connecting block is provided on the lower connecting frame.

[0011] As an improvement to the stable headlight cooling fan of the present utility model, a plurality of insertion grooves are provided on the inner hole of the connecting ring.

[0012] As an improvement to the stable headlight cooling fan of the present utility model, the connecting frame includes a connecting plate and a collar integrally formed with the connecting plate. A connecting column coaxially arranged with the collar is integrally formed at the center of the connecting plate. The drive shaft is fixedly connected to the connecting column. A fixed chamber is provided between the collar and the connecting column; a permanent magnet ring adapted to the stator winding is provided within the fixed chamber.

[0013] As an improvement to the stable headlight cooling fan of the present utility model, the connecting plate is arc-shaped, and a plurality of fan blades are evenly distributed on the surface of the connecting plate.

[0014] In addition to the technical problems solved by the present invention, the technical features constituting the technical solution, and the advantages brought by these technical features of the technical solution described above, other technical problems that the present utility model can solve, other technical features included in the technical solution, and the advantages brought by these technical features will be further described in detail in conjunction with the accompanying drawings. Description of the Drawings

[0015] Figure 1 is a cross-sectional view of the present utility model.

[0016] Figure 2 is an exploded view of the stator winding of the present utility model.

[0017] Figure 3 is an enlarged view of part A of the present utility model.

[0018] Explanation of the attached reference numerals: 01. mounting plate, 02. fixing column, 03. driving shaft, 04. connecting frame, 05. fan blade, 06. stator winding, 07. connecting plate, 08. clamping groove, 09. skeleton, 10. connecting column, 11. stabilizing column, 12. winding column, 13. magnetic pole head, 14. winding groove, 15. connecting hole, 16. collar, 17. limiting groove, 18. limiting strip, 19. iron core, 20. upper connecting frame, 21. lower connecting frame, 22. connecting block, 23. insertion hole, 24. insertion groove. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] As Figures 1-3 shown, the heat dissipation fan of the present invention includes a mounting plate 01. A fixing column 02 is integrally formed on the mounting plate 01. A driving shaft 03 is rotatably installed in the fixing column 02. The end of the driving shaft 03 is located outside the fixing column 02 and fixedly installed with a connecting frame 04. A plurality of fan blades 05 are integrally formed on the outer surface of the connecting frame 04. A permanent magnet ring is fixedly installed in the connecting frame 04. A stator winding 06 is sleeved on the fixing column 02. The permanent magnet ring is sleeved on the stator winding 06. Through the cooperation of the permanent magnet ring and the stator winding 06, the connecting frame 04 rotates around the driving shaft 03.

[0021] The connecting frame 04 includes a connecting plate 07 and a collar 16 integrally formed with the connecting plate 07. A connecting column 10 coaxially arranged with the collar 16 is integrally formed at the center of the connecting plate 07. The driving shaft 03 is fixedly connected to the connecting column 10. A fixed chamber is provided between the collar 16 and the connecting column 10. A permanent magnet ring is arranged in the fixed chamber. The permanent magnet ring is fixedly connected to the fixed chamber by an interference fit. A stator winding 06 is fixedly installed on the fixing column 02. The permanent magnet ring is sleeved on the stator winding 06. Through the cooperation of the stator winding 06 and the permanent magnet ring, the connecting frame 04 rotates. The connecting plate 07 is arc-shaped, and a plurality of fan blades 05 are evenly distributed on the connecting plate 07.

[0022] As Figures 2-3 shown, the stator winding 06 includes a skeleton 09 and a winding wire wound on the skeleton 09. A plurality of winding columns 12 are evenly distributed on the outer circumferential surface of the skeleton 09. Magnetic pole heads 13 are arranged at the ends of the winding columns 12. A winding groove 14 is provided between the magnetic pole heads 13 and the stabilizing columns 11. The winding wire is wound on the winding columns 12 and located in the winding groove 14.

[0023] The skeleton 09 includes an upper connecting frame 20 and a lower connecting frame 21. A core 19 is arranged between the upper connecting frame 20 and the lower connecting frame 21. Clamping grooves 08 adapted to the core 19 are arranged on both the upper connecting frame 20 and the lower connecting frame 21. The core 19 is fixed between the upper connecting frame 20 and the lower connecting frame 21 through the clamping grooves 08. The upper connecting frame 20 and the lower connecting frame 21 are fixedly connected through fasteners.

[0024] A stabilizing column 11 is arranged at the center of the core 19, and a connecting hole 15 adapted to the fixing column 02 is arranged at the center of the stabilizing column 11. A limiting groove 17 is arranged on the inner hole of the connecting hole 15, and a limiting strip 18 adapted to the limiting groove 17 is arranged on the outer surface of the fixing column 02. During the assembly process, through the design of the limiting strip 18 and the limiting groove 17, it provides a guiding function when installing the stator winding 06. At the same time, through the cooperation of the limiting groove 17 and the limiting strip 18, it prevents the stator winding 06 from rotating around the fixing column 02. It plays a limiting role.

[0025] The core 19 is composed of a plurality of stacked silicon steel sheets. The upper connecting frame 20, the core 19, and the lower connecting frame 21 have the same shape and are fixedly connected into a whole through steel needles. A plurality of connecting blocks 22 are integrally formed on the lower connecting frame 21, and insertion holes 23 adapted to the connecting blocks 22 are arranged on the mounting plate 01. When fixedly connecting with the mounting plate 01, the connecting blocks 22 are inserted into the insertion holes 23. After the connecting blocks 22 are inserted into the insertion holes 23, a riveting point is formed on one side of the mounting plate 01 by hot melt welding, so as to realize the fixed connection between the connecting blocks 22 and the mounting plate 01. Thus, it prevents the stator winding 06 from separating from the mounting plate 01.

[0026] Therefore, a connecting ring 08 is arranged in the stator winding 06. A limiting groove 17 is arranged on the inner hole of the connecting ring 08, and a limiting strip 18 adapted to the limiting groove 17 is arranged on the outer surface of the fixing column 02. The cooperation of the limiting groove 17 and the limiting strip 18 prevents the stator winding 06 from rotating around the fixing column 02. It plays a limiting and guiding role. At the same time, one end of the stator winding 06 is provided with a plurality of connecting blocks 22, and insertion holes 23 adapted to the connecting blocks 22 are arranged on the mounting plate 01. When the connecting blocks 22 are inserted into the insertion holes 23, a riveting point is formed on one side of the mounting plate 01. Thus, it prevents the stator winding 06 from separating from the mounting plate 01.

[0027] As Figure 3 shown, a plurality of insertion grooves 24 are arranged on the inner wall of the connecting ring 08. When winding the winding column 12, if the winding needs to horizontally or vertically cross the skeleton 09, one end of the winding is placed in the insertion groove, preventing the winding from being exposed in the connecting ring 08 and interfering with the fixing column 02.

[0028] It should be noted that for the sake of clear description, the fasteners described in this application are any one of screws, bolts, and screws.

[0029] If there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0030] The above embodiments are only descriptions of the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model should all fall within the protection scope determined by the claims of the present utility model.

Claims

1. A stable headlight cooling fan, comprising a mounting plate and fixing columns arranged on the mounting plate. A drive shaft is rotatably installed in the fixing column. A connecting frame is fixedly installed at the end of the drive shaft. A permanent magnet ring is fixedly installed in the connecting frame. A stator winding adapted to the permanent magnet ring is provided on the fixing column, characterized in that, The stator winding is provided with connection holes adapted to the fixed columns. Limiting grooves are arranged in the connection holes, and limiting strips adapted to the limiting grooves are arranged on the outer surface of the fixed columns. One end of the stator winding is provided with a plurality of connection blocks, and the mounting plate is provided with insertion holes adapted to the connection blocks. The connection blocks are inserted into the insertion holes and form riveting points on one side of the mounting plate.

2. The stability headlight cooling fan according to claim 1, characterized in that: The stator winding includes a skeleton and windings wound around the skeleton. A number of winding columns are evenly distributed on the outer circular surface of the skeleton. Magnetic pole heads are arranged at the ends of the winding columns. A winding groove is arranged between the magnetic pole heads and the stabilizing columns. The windings are wound around the winding columns and are located in the winding grooves.

3. The stable headlight cooling fan according to claim 2, characterized in that: The skeleton includes an upper connection frame and a lower connection frame. An iron core is arranged between the upper connection frame and the lower connection frame. Clamping grooves adapted to the iron core are arranged on both the upper connection frame and the lower connection frame.

4. The stable headlight cooling fan according to claim 3, wherein: A stabilizing column is arranged at the center of the iron core, and the connection hole is arranged at the center of the stabilizing column.

5. The stable headlight cooling fan according to claim 3, wherein: The connection blocks are arranged on the lower connection frame.

6. The stability headlight cooling fan according to claim 1, characterized in that: A number of insertion grooves are arranged on the inner hole of the connection ring.

7. The stable headlight cooling fan according to claim 1, wherein: The connection frame includes a connection plate and a collar integrally formed with the connection plate. A connection column coaxially arranged with the collar is integrally formed at the center of the connection plate. The drive shaft is fixedly connected to the connection column. A fixed chamber is arranged between the collar and the connection column. A permanent magnet ring adapted to the stator winding is arranged in the fixed chamber.

8. The stable headlight cooling fan according to claim 7, characterized in that: The connection plate is arc-shaped, and a number of fan blades are evenly distributed on the surface of the connection plate.

Images