Lamp cooling fan

Abstract

The utility model relates to a car lamp cooling fan which comprises a mounting plate and a connecting frame rotationally installed on the mounting plate, a fixing column is integrally formed on the mounting plate, a driving shaft is rotationally installed in the fixing column through a miniature bearing, the connecting frame is fixedly installed on the driving shaft, and an oil inlet hole is formed in the axial direction of the driving shaft. An oil outlet hole communicated with the oil inlet hole is formed in the radial direction of the driving shaft, and the oil outlet hole is adjacent to a bearing on the driving shaft. When the miniature bearing is used for a long time, lubricating oil in the miniature bearing is gradually reduced; after the miniature bearing is used for a period of time, an operator fills lubricating oil into the oil inlet hole, and the lubricating oil drips onto a steel ball in the miniature bearing along the oil inlet hole and the oil outlet hole, so that the content of the lubricating oil in the miniature bearing is ensured; therefore, the loss of lubricating oil in the miniature bearing is prevented; therefore, the service life of the micro bearing is prolonged, and the micro bearing is prevented from making friction sound during use.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamp scattering equipment, in particular to a lamp cooling fan. Background Art

[0002] Existing cooling fans are divided into two types: ball fans and hydraulic fans. Since ball fans are more efficient than hydraulic fans and rotate more smoothly, they are used in a wider range. When installing ball bearings, lubricating oil is added to the balls in the ball bearings so that the ball bearings are saturated with lubricating oil in the initial state. However, during the long-term use of ball bearings, the steel balls in the ball bearings and the inner and outer rings of the ball bearings are made of metal. When the lubricating oil in the ball bearings is gradually consumed, friction sounds will be emitted between the steel balls and the inner and outer rings, and the friction loss between the steel balls and the inner and outer rings will also be accelerated. This will cause the rotation stability of the cooling fan to decrease. Summary of the invention

[0003] The utility model aims to provide a lamp cooling fan to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a lamp cooling fan, including a mounting plate and a connecting frame rotatably mounted on the mounting plate, a fixing column is integrally formed on the mounting plate, a driving shaft is rotatably mounted in the fixing column through a miniature bearing, the connecting frame is fixedly mounted on the driving shaft, an oil inlet hole is arranged in the axial direction of the driving shaft, an oil outlet hole connected to the oil inlet hole is arranged in the radial direction of the driving shaft, and the oil outlet hole is adjacent to the bearing on the driving shaft.

[0005] Compared with the prior art, when the micro bearing is used for a long time, the lubricating oil in the micro bearing gradually decreases. After a period of use, the operator adds lubricating oil to the oil inlet hole, and the lubricating oil drips onto the steel balls in the micro bearing along the oil inlet hole and the oil outlet hole, thereby ensuring the lubricating oil content in the micro bearing, thereby preventing the loss of lubricating oil in the micro bearing, and thus extending the service life of the micro bearing, while preventing the micro bearing from making friction sounds when in use.

[0006] As an improvement of the lamp cooling fan of the utility model, an oil outlet pipe for guiding the flow direction of the lubricating oil is arranged on the oil outlet hole; the oil outlet of the oil outlet pipe is located at one side of the miniature bearing.

[0007] As an improvement of the lamp cooling fan of the utility model, a mounting hole penetrating the mounting plate is arranged on the fixing column, and two miniature bearings are arranged at intervals on the driving shaft, and the two miniature bearings are fixedly installed in the mounting hole.

[0008] As an improvement of the lamp cooling fan of the present utility model, two oil outlet holes are provided on the drive shaft. The two oil outlet holes are respectively an upper oil outlet hole and a lower oil outlet hole, and the upper oil outlet hole and the lower oil outlet hole are symmetrically arranged on both sides of the drive shaft; the upper oil outlet hole is adjacent to one of the miniature bearings; the lower oil outlet hole is adjacent to the other miniature bearing.

[0009] As an improvement of the lamp cooling fan of the present utility model, oil inlet holes are respectively provided at both ends of the drive shaft. The two oil inlet holes are respectively a first oil inlet hole and a second oil inlet hole. Two oil outlet holes are provided on the drive shaft. The two oil outlet holes are respectively an upper oil outlet hole and a lower oil outlet hole, and the upper oil outlet hole and the lower oil outlet hole are symmetrically arranged on both sides of the drive shaft; the upper oil outlet hole is adjacent to one of the miniature bearings; the lower oil outlet hole is adjacent to the other miniature bearing; the upper oil outlet hole is connected to the first oil inlet hole in a through manner, and the lower oil outlet hole is connected to the second oil inlet hole in a through manner.

[0010] As an improvement of the lamp cooling fan of the present utility model, a setscrew is threadedly connected to the oil inlet of the oil inlet hole.

[0011] As an improvement of the lamp cooling fan of the present utility model, a limit hole communicating with the mounting hole is provided on the outer surface of the mounting plate. One end of the drive shaft passes through the limit hole and is flush with the mounting plate. The other end of the drive shaft is fixedly connected to the connecting frame. A circlip is arranged in the limit hole, and the circlip is clamped on the drive shaft and abuts against the bottom surface of the limit hole.

[0012] As an improvement of the lamp cooling fan of the present utility model, a conical spring is sleeved on the drive shaft; the conical spring is located between the fixed column and the connecting frame; one end of the conical spring abuts against the miniature bearing on the drive shaft, and the other end abuts against the connecting frame.

[0013] Compared with the prior art, the cooperation of the circlip and the conical spring is adopted to prevent the drive shaft from axially moving along the fixed column in the fixed column; at the same time, due to the design of the conical spring, the elastic force acts on the drive shaft to generate a pre-pressure on the miniature bearing, so that the internal balls of the bearing will not deviate from the track during the operation of the bearing.

[0014] As an improvement of the lamp cooling fan of the present utility model, the connecting frame includes a connecting plate and a connecting ring integrally formed with the connecting plate. A plurality of fan blades are evenly distributed on the outer surface of the connecting ring. The center of the connecting plate is provided with a connecting column coaxially arranged with the connecting ring, and the drive shaft is fixedly connected to the connecting column.

[0015] As an improvement of the lamp cooling fan of the present utility model, a connecting hole adapted to the drive shaft is provided on the connecting column, and the connecting hole penetrates through the connecting plate; the end of the drive shaft passes through the connecting hole and is flush with the connecting plate.

[0016] In addition to the technical problems solved by the present invention, the technical features constituting the technical solution, and the advantages brought about 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 about by these technical features will be further described in detail with reference to the accompanying drawings. Description of the Drawings

[0017] Figure 1 is an exploded sectional view of the first design of the lubricating oil path of the present utility model.

[0018] Figure 2 is an exploded sectional view of the second design of the lubricating oil path of the present utility model.

[0019] Description of the reference numerals in the drawings: 01. mounting plate, 02. fixing column, 03. drive shaft, 04. connecting frame, 05. fan blade, 06. connecting plate, 07. connecting ring, 08. connecting column, 09. mounting hole, 10. miniature bearing, 11. circlip, 12. conical spring, 13. connecting hole, 14. limiting hole, 15. oil inlet hole, 16. oil outlet hole, 17. setscrew, 18. oil outlet pipe. Detailed Description of the Preferred Embodiment

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model.

[0021] As Figure 1-2 shown, the lamp cooling fan of the present utility model includes a mounting plate 01, a fixing column 02 is integrally formed on the mounting plate 01, a drive shaft 03 is rotatably installed in the fixing column 02, the end of the drive shaft 03 is located outside the fixing column 02 and fixedly installed with a connecting frame 04, and 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 is sleeved on the fixing column 02, and the permanent magnet ring is sleeved on the stator winding. Through the cooperation of the permanent magnet ring and the stator winding, the connecting frame 04 rotates around the drive shaft 03.

[0022] The connecting frame 04 includes a circular connecting plate 06 and a connecting ring 07 integrally formed with the connecting plate 06, and a plurality of fan blades 05 are arranged on the outer surface of the connecting ring 07. A connecting column 08 coaxially arranged with the connecting ring 07 is integrally formed at the center of the connecting plate 06, the drive shaft 03 is fixedly connected to the connecting column 08, and a fixing chamber is arranged between the connecting ring 07 and the connecting column 08. The permanent magnet ring is fixedly installed in the fixing chamber and abuts against the side wall of the fixing chamber. The permanent magnet ring is sleeved on the stator winding. Through the cooperation of the stator winding and the permanent magnet ring, the connecting frame 04 rotates.

[0023] The fixing column 02 is provided with mounting holes 09 penetrating through the mounting plate 01. Two micro bearings 10 are arranged at intervals on the driving shaft 03. Both of the two micro bearings 10 are fixedly installed in the mounting holes 09. One end of the driving shaft 03 passes through the mounting plate 01 and is flush with the mounting plate 01. The other end is fixedly connected to the connecting frame 04. A snap ring 11 is clamped at the end of the driving shaft 03. A conical spring 12 is sleeved on the driving shaft 03. The conical spring 12 is located between the fixing column 02 and the connecting frame 04. One end of the conical spring 12 abuts against the micro bearing 10 on the driving shaft 03, and the other end abuts against the connecting frame 04. During the assembly process, the conical spring 12 is always in an energy storage state (compressed state). Through the cooperation of the snap ring 11 and the conical spring 12, the driving shaft 03 is prevented from axially moving along the fixing column 02 within the fixing column 02. At the same time, due to the design of the conical spring 12, the elastic force acts on the driving shaft 03 to generate a pre-pressure on the micro bearing 10, so that the internal balls of the bearing will not deviate from the track during the operation of the bearing.

[0024] A limiting hole 14 communicating with the mounting hole 09 is arranged on the outer surface of the mounting plate 01. One end of the driving shaft 03 passes through the limiting hole 14 and is flush with the mounting plate 01. The other end of the driving shaft 03 is fixedly connected to the connecting frame 04. The snap ring 11 is located in the limiting hole 14 and is clamped on the driving shaft 03. The snap ring 11 abuts against the bottom surface of the limiting hole 14. Through the design of the limiting hole 14, the snap ring 11 is located within the mounting plate 01. Thus, the phenomenon of interference with the external mounting plate 01 during the installation process is prevented.

[0025] A connecting hole 13 adapted to the driving shaft 03 is arranged on the connecting column 08. The connecting hole 13 penetrates through the connecting plate 06. The end of the driving shaft 03 passes through the connecting hole 13 and is flush with the connecting plate 06. The driving shaft 03 and the connecting hole 13 are fixedly connected by means of key connection.

[0026] Two oil inlet holes 15 extending along the axial direction of the driving shaft 03 are arranged at one end of the driving shaft 03. The two oil inlet holes 15 are respectively the first oil inlet hole and the second oil inlet hole. Two oil outlet holes 16 communicating with the oil inlet holes 15 are arranged on the driving shaft 03. The two oil outlet holes 16 are respectively the upper oil outlet hole and the lower oil outlet hole. The upper oil outlet hole and the lower oil outlet hole are symmetrically arranged on both sides of the driving shaft 03. The upper oil outlet hole is adjacent to one of the micro bearings 10. The lower oil outlet hole is adjacent to the other micro bearing 10. The upper oil outlet hole communicates with the first oil inlet hole, and the lower oil outlet hole communicates with the second oil inlet hole. When lubricating oil flows into from the two oil inlet holes 15, it drips onto the surfaces of the corresponding micro bearings 10 respectively through the upper oil outlet hole and the lower oil outlet hole. Thus, the lubricating oil enters the inside of the micro bearings 10 to play a lubricating role, thereby reducing the running noise of the bearings and increasing the service life of the bearings. Furthermore, the overall service life of the cooling fan is increased. At the same time, the upper oil outlet hole and the lower oil outlet hole are symmetrically arranged to ensure the static balance of the driving shaft 03.

[0027] In order to allow the lubricating oil to smoothly enter the micro bearing 10, the upper and lower oil outlet holes are fixedly connected with an oil outlet pipe 18 by welding, and the oil outlet pipe 18 extends to the steel ball side of the micro bearing 10. When the lubricating oil enters the oil inlet hole 15, it drips directly onto the steel ball under the action of the oil outlet pipe 18, thereby avoiding the lubricating oil dripping onto the surface of the output shaft.

[0028] like Figure 2 As shown, another arrangement of the oil inlet hole 15. Oil inlet holes 15 are respectively arranged at both ends of the drive shaft 03, and the two oil inlet holes 15 are respectively the first oil inlet hole and the second oil inlet hole. Two oil outlet holes 16 are arranged on the drive shaft 03, and the two oil outlet holes 16 are respectively the upper oil outlet hole and the lower oil outlet hole, and the upper oil outlet hole and the lower oil outlet hole are symmetrically arranged on both sides of the drive shaft 03. The upper oil outlet hole is adjacent to one of the miniature bearings 10. The lower oil outlet hole is adjacent to the other miniature bearing 10. The upper oil outlet hole is connected with the first oil inlet hole, and the lower oil outlet hole is connected with the second oil inlet hole. Each miniature bearing 10 corresponds to a separate oil inlet hole 15, so as to ensure that the lubricating oil is ready to enter each miniature bearing 10.

[0029] Therefore, an oil inlet hole 15 is provided in the axial direction of the drive shaft 03, and an oil outlet hole 16 connected to the oil inlet hole 15 is provided in the radial direction of the drive shaft 03, and the oil outlet hole 16 is adjacent to the bearing on the drive shaft 03. When the micro bearing 10 is used for a long time, the lubricating oil in the micro bearing 10 is gradually reduced. After a period of use, the operator fills the lubricating oil into the oil inlet hole 15, and the lubricating oil drips onto the steel ball in the micro bearing 10 along the oil inlet hole 15 and the oil outlet hole 16, thereby ensuring the lubricating oil content in the micro bearing 10. This prevents the loss of lubricating oil in the micro bearing 10. In addition, the service life of the micro bearing 10 is extended, and at the same time, the micro bearing 10 does not make a friction sound when in use. At the same time, an oil outlet pipe 18 is provided on the oil outlet hole 16 to guide the flow direction of the lubricating oil. At the same time, the oil outlet of the oil outlet pipe 18 is located on the side of the steel ball in the micro bearing 10. This allows the lubricating oil to accurately enter the micro bearing 10.

[0030] In order to prevent dust or dust from entering the oil inlet 15 during use, a top screw 17 is threadedly connected to the oil inlet of the oil inlet 15. Remove the top screw 17 when oil filling is required. Then inject the lubricating oil into the oil inlet 15 of the oil filling channel, and the lubricating oil drips into the corresponding miniature bearing 10 along the oil inlet 15 and the oil outlet pipe 18, thereby replenishing the amount of lubricating oil in the miniature bearing 10. After the filling is completed, the top screw 17 is threadedly connected to the oil inlet of the oil inlet 15. This prevents dust or other impurities from entering the oil inlet 15 of the oil filling channel.

[0031] 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 specific posture (as shown in the attached drawings). If the specific posture changes, then the directional indications will also change accordingly.

[0032] 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 shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A lamp cooling fan, comprising a mounting plate and a connecting frame rotatably mounted on the mounting plate, characterized in that: A fixing column is integrally formed on the mounting plate, a driving shaft is rotatably mounted in the fixing column via a miniature bearing, a connecting frame is fixedly mounted on the driving shaft, an oil inlet hole is arranged in the axial direction of the driving shaft, an oil outlet hole which is through-connected with the oil inlet hole is arranged in the radial direction of the driving shaft, and the oil outlet hole is adjacent to the bearing on the driving shaft.

2. The lamp cooling fan according to claim 1, characterized in that: An oil outlet pipe for guiding the flow direction of the lubricating oil is arranged on the oil outlet hole; and the oil outlet of the oil outlet pipe is located at one side of the miniature bearing.

3. The lamp cooling fan according to claim 1, characterized in that: The fixing column is provided with a mounting hole which penetrates the mounting plate, and two miniature bearings are arranged at intervals on the driving shaft, and the two miniature bearings are fixedly installed in the mounting hole.

4. The lamp cooling fan according to claim 3, characterized in that: The drive shaft is provided with two oil outlet holes, which are an upper oil outlet hole and a lower oil outlet hole respectively. The upper oil outlet hole and the lower oil outlet hole are symmetrically arranged on both sides of the drive shaft; the upper oil outlet hole is adjacent to one of the miniature bearings; the lower oil outlet hole is adjacent to the other miniature bearing.

5. The lamp cooling fan according to claim 3, characterized in that: Oil inlet holes are respectively provided at both ends of the driving shaft, and the two oil inlet holes are respectively a first oil inlet hole and a second oil inlet hole. Two oil outlet holes are provided on the driving shaft, and the two oil outlet holes are respectively an upper oil outlet hole and a lower oil outlet hole. The upper oil outlet hole and the lower oil outlet hole are symmetrically arranged on both sides of the driving shaft; the upper oil outlet hole is adjacent to one of the miniature bearings; the lower oil outlet hole is adjacent to the other miniature bearing; the upper oil outlet hole is through-connected with the first oil inlet hole, and the lower oil outlet hole is through-connected with the second oil inlet hole.

6. The lamp cooling fan according to any one of claims 1 to 5, characterized in that: The oil inlet of the oil inlet hole is threadedly connected with a jack screw.

7. The lamp cooling fan according to claim 3, characterized in that: A limiting hole connected to the mounting hole is provided on the outer surface of the mounting plate, one end of the driving shaft passes through the limiting hole and is flush with the mounting plate, the other end of the driving shaft is fixedly connected to the connecting frame, and a retaining spring is provided in the limiting hole, the retaining spring is clamped on the driving shaft and abuts against the bottom surface of the limiting hole.

8. The lamp cooling fan according to claim 7, characterized in that: A conical spring is sleeved on the driving shaft; the conical spring is located between the fixing column and the connecting frame; one end of the conical spring abuts against the miniature bearing on the driving shaft, and the other end abuts against the connecting frame.

9. The lamp cooling fan according to claim 1, characterized in that: The connecting frame includes a connecting plate and a connecting ring integrally formed with the connecting plate. Several fan blades are evenly distributed on the outer surface of the connecting ring. A connecting column coaxially arranged with the connecting ring is arranged in the center of the connecting plate, and the driving shaft is fixedly connected to the connecting column.

10. The lamp cooling fan according to claim 9, characterized in that: A connecting hole adapted to the driving shaft is arranged on the connecting column, and the connecting hole passes through the connecting plate; the end of the driving shaft passes through the connecting hole and is flush with the connecting plate.

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