Cooling fan of automobile water tank

The design of the limit pin and transmission device simplifies the disassembly and cleaning process of the car radiator fan, solves the problem of inconvenient disassembly in the existing technology, and improves maintenance efficiency and fan reliability.

CN224064433UActive Publication Date: 2026-03-31DONGGUAN FUSHENG PLASTIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-14
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing automotive radiator cooling fan has a complex structure, which makes disassembly and cleaning inconvenient, maintenance costs high, and affects fan performance and normal vehicle operation.

Method used

A car radiator cooling fan was designed, which uses a limit pin and a transmission device to achieve quick disassembly and installation of the fan through simple operation, simplifying the disassembly and cleaning process.

Benefits of technology

It enables quick disassembly and cleaning of the fan, improving ease of operation and maintenance efficiency, and ensuring normal vehicle operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a cooling fan of an automobile water tank, and belongs to the technical field of cooling fans. The automobile water tank cooling fan comprises a connecting frame, the back face of the connecting frame is fixedly connected with an automobile water tank heat exchanger, two clamping grooves are formed in the connecting frame, connecting limiting frames are movably connected into the clamping grooves in a sleeved mode, and cooling fan bodies are fixedly connected to the inner walls of the connecting limiting frames. And the outer wall of the cooling fan is movably connected with the connecting frame in a sleeving manner. According to the utility model, in the process of dismounting and replacing the fan of the automobile water tank, one group of dismounting push blocks are pushed downwards, so that the four groups of limiting bolts act synchronously, the limiting and fixing of the connecting limiting frame are canceled by the four groups of limiting bolts at the same time, and the fan originally fixed on the water tank can be quickly separated, so that quick dismounting is realized; compared with the prior art, repair and maintenance time is saved, operation convenience and reliability are improved, the process of replacing and cleaning the fan becomes easy and efficient, and normal operation of a vehicle is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of cooling fan technology, and in particular to a car radiator cooling fan. Background Technology

[0002] The car radiator, also known as the water tank, is one of the core components of the car's cooling system. Its main function is to maintain the engine's normal operating temperature range by dissipating heat. However, the natural convection cooling capacity of the car radiator itself is far from sufficient, especially under conditions such as high load operation, high temperature environment, or low speed driving. Therefore, it is necessary to add a fan to accelerate heat dissipation.

[0003] Because the front fan of a car needs to handle a large airflow while it is in motion, and the interior environment of the front of the car is relatively harsh, a lot of dirt and dust can easily accumulate on the surface of the fan. This dirt and dust not only affects the cooling efficiency of the fan, but may also lead to a decrease in fan performance or even cause malfunctions. Therefore, the fan needs to be cleaned regularly to ensure its normal operation. The existing fan structure is relatively complicated to disassemble, cleaning is inconvenient, and the time and effort cost of maintenance is high.

[0004] Therefore, this utility model proposes a car water tank cooling fan. Utility Model Content

[0005] The purpose of this invention is to provide an automotive radiator cooling fan to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A car radiator cooling fan includes a connecting frame. The back of the connecting frame is fixedly connected to the car radiator heat exchanger. The connecting frame has two sets of slots inside. A connecting limiting frame is movably sleeved inside each slot. A cooling fan is fixedly connected to the inner wall of the connecting limiting frame. The outer wall of the cooling fan is movably sleeved with the connecting frame.

[0008] The four corners of the connecting limiting frame are provided with fixing holes, and the inside of each fixing hole is movably fitted with a limiting device. The outer wall of the limiting device is fixedly connected with a transmission device, and the outer wall of the transmission device is in contact with the front of the connecting frame.

[0009] Furthermore, the limiting device includes a limiting pin, a spring is movably sleeved on the outer wall of the limiting pin, one end of the spring is in contact with the inner wall of the connecting frame, the other end of the spring is fixedly connected to a limiting baffle, the interior of the limiting baffle is fixedly sleeved with the limiting pin, and the outer wall of the limiting pin is movably sleeved with the connecting limiting frame.

[0010] Furthermore, the connecting frame has eight sets of limiting holes inside, which are arranged in a linear array. The inner wall of each limiting hole is movably fitted with a limiting pin, a limiting stop plate, and a spring.

[0011] Furthermore, the transmission device includes a transmission rod one, which is placed vertically. The upper and lower ends of the back of the transmission rod one are fixedly connected to two sets of limiting pins. Two sets of transmission rod two are fixedly connected to the front of the two sets of transmission rod one, and the two sets of transmission rod two are placed horizontally at the upper and lower ends of the transmission rod one.

[0012] Furthermore, a movable groove is provided on the inner side of the connecting frame, and a limiting slide rod is fixedly connected to the inner wall of the movable groove. A second spring is movably sleeved on the outer wall of the limiting slide rod. The top end of the second spring is fixedly connected to a second limiting baffle. The inner wall of the second limiting baffle is slidably sleeved with the limiting slide rod. Connecting sliders are provided on opposite sides of the two sets of second limiting baffles. Disassembly push blocks are fixedly connected on opposite sides of the two sets of connecting sliders. Transmission rods are fixedly connected on opposite sides of the two sets of disassembly push blocks. The outer wall of transmission rods is in contact with the inner wall of the connecting frame.

[0013] Furthermore, the outer bottom end of the disassembly push block is provided with a ramp surface, which is in contact with the inner wall of the transmission rod two.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] 1. During the disassembly and replacement of the car radiator fan, by pushing down one set of disassembly push blocks, the four sets of limit pins move synchronously, causing the four sets of limit pins to simultaneously release the limiting fixation of the connecting limit frame. The fan, which was originally fixed to the radiator, can then be quickly separated, achieving rapid disassembly. This saves maintenance and repair time, improves the convenience and reliability of operation, and makes the fan replacement and cleaning process easy and efficient, ensuring the normal operation of the vehicle. Attached Figure Description

[0016] Figure 1 This is an external view of a car water tank cooling fan according to the present invention;

[0017] Figure 2 This is a top view of an automotive water tank cooling fan according to the present invention;

[0018] Figure 3 This is an external view of a car water tank cooling fan according to the present invention;

[0019] Figure 4 This is a structural diagram of the connecting frame of an automotive water tank cooling fan according to the present invention;

[0020] Figure 5This is a cross-sectional view of the connecting frame of an automotive water tank cooling fan according to the present invention;

[0021] Figure 6 This is a partial cross-sectional view of an automotive water tank cooling fan according to the present invention;

[0022] Figure 7 This is a structural diagram of the internal structure of the connecting frame of an automotive water tank cooling fan according to this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Connecting frame; 2. Car water tank heat exchanger; 3. Transmission rod one; 4. Transmission rod two; 5. Disassembly push block; 6. Cooling fan; 7. Connecting limit frame; 8. Transmission rod three; 9. Limiting pin; 10. Limiting baffle one; 11. Spring one; 12. Limiting baffle two; 13. Spring two; 14. Limiting slide bar; 15. Connecting slider. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please see Figures 1 to 7 As shown, the automotive water tank cooling fan provided by this utility model includes a connecting frame 1. The back of the connecting frame 1 is fixedly connected to the automotive water tank heat exchanger 2. Two sets of slots are provided inside the connecting frame 1. A connecting limiting frame 7 is movably sleeved inside each slot. A cooling fan 6 is fixedly connected to the inner wall of the connecting limiting frame 7. The outer wall of the cooling fan 6 is movably sleeved with the connecting frame 1.

[0028] Fixing holes are provided at all four corners of the connecting limit frame 7. Limiting devices are movably fitted inside the fixing holes. A transmission device is fixedly connected to the outer wall of the limiting device. The outer wall of the transmission device fits against the front of the connecting frame 1.

[0029] The limiting device includes a limiting pin 9, and a spring 11 is movably sleeved on the outer wall of the limiting pin 9. One end of the spring 11 is in contact with the inner wall of the connecting frame 1, and the other end of the spring 11 is fixedly connected to the limiting baffle 10. The inside of the limiting baffle 10 is fixedly sleeved with the limiting pin 9, and the outer wall of the limiting pin 9 is movably sleeved with the connecting limiting frame 7.

[0030] The connecting frame 1 has eight sets of limiting holes inside, which are arranged in a linear array. The inner wall of the limiting holes is movably fitted with a limiting pin 9, a limiting baffle 10, and a spring 11.

[0031] When it is necessary to disassemble the cooling fan 6, firstly, pull the transmission rod 3 towards the front. At this time, the back of the transmission rod 3 will drive the two sets of limit pins 9 to move towards the front simultaneously. As the limit pins 9 move, the limiting connection between their bottom outer wall and the connecting limit frame 7 is released. At this time, pull the cooling fan 6 upward, and drive the movable connecting limit frame 7 to move together. The cooling fan 6 can be quickly disassembled from the inside of the connecting frame 1. The disassembly is simple and efficient, making it easy to clean the cooling fan 6.

[0032] When the cooling fan 6 is cleaned or needs to be replaced, simply release the tension on the transmission rod 3. At this time, under the action of the elastic potential energy of the spring 11, the limit plate 10 will push the limit pin 9 to move synchronously to the rear end. Finally, the limit plate 10 will re-insert into the fixing hole of the connecting limit frame 7, thereby limiting and fixing the connecting limit frame 7, and completing the reinstallation of the cooling fan 6. The whole process does not require complicated tools or cumbersome operations, which greatly improves maintenance efficiency.

[0033] Example 2

[0034] Based on Example 1, please refer to Figures 1 to 7 As shown, the transmission device includes a transmission rod 3, which is placed vertically. The upper and lower ends of the back of the transmission rod 3 are fixedly connected to two sets of limiting pins 9. The front of the two sets of transmission rods 3 is fixedly connected to two sets of transmission rods 4, which are placed horizontally at the upper and lower ends of the transmission rod 3.

[0035] A movable groove is provided on the inner side of the connecting frame 1. A limiting slide rod 14 is fixedly connected to the inner wall of the movable groove. A spring 13 is movably sleeved on the outer wall of the limiting slide rod 14. The top of the spring 13 is fixedly connected to the limiting baffle 12. The inner wall of the limiting baffle 12 is slidably sleeved with the limiting slide rod 14. A connecting slider 15 is provided on the opposite side of the two sets of limiting baffles 12. A disassembly push block 5 is fixedly connected on the opposite side of the two sets of connecting sliders 15. A transmission rod 8 is fixedly connected on the opposite side of the two sets of disassembly push blocks 5. The outer wall of the transmission rod 8 is in contact with the inner wall of the connecting frame 1.

[0036] The outer bottom of the disassembly push block 5 is provided with a ramp surface, which fits against the inner wall of the transmission rod 4.

[0037] When it is necessary to disassemble the cooling fan 6, firstly, push one of the disassembly push blocks 5 downwards. At this time, the connecting sliders 15 fixed at both ends of the disassembly push block 5 will drive the two sets of limit baffles 12 to move downwards on the surface of the limit slide rod 14. At the same time, the slope of the disassembly push block 5 will push the transmission rod 4 to move forward, thereby pulling the transmission rods 3 on both sides to move forward simultaneously. Through the linkage of the transmission rod 8, the disassembly push block 5 at the bottom will also move downwards simultaneously, thereby driving the four sets of limit pins 9 to move simultaneously, so that they are disconnected from the connecting limit frame 7. The cooling fan 6 can then be quickly disassembled from the connecting frame 1 for easy cleaning or replacement.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automobile water tank cooling fan characterized by comprising: The utility model provides a heat exchange device of automobile water tank, including connecting frame (1), the back of connecting frame (1) is fixedly connected with automobile water tank heat exchanger (2), the inside of connecting frame (1) is opened with two groups of clamping slot, the inside of clamping slot all movably joggle with connecting limit frame (7), the inner wall of connecting limit frame (7) is fixedly connected with radiating fan (6), the outer wall of radiating fan (6) movably joggle with connecting frame (1), The four corners of the connecting limit frame (7) are provided with fixing holes, the inside of the fixing holes movably joggle with limiting devices, the outer wall of the limiting device is fixedly connected with a transmission device, and the outer wall of the transmission device is attached to the front surface of the connecting frame (1).

2. The automobile water tank cooling fan according to claim 1, characterized in that, The limiting device includes a limiting bolt (9), the outer wall of the limiting bolt (9) movably joggle with a spring (11), one end of the spring (11) is attached to the inner wall of the connecting frame (1), the other end of the spring (11) is fixedly connected with a limiting baffle (10), the inside of the limiting baffle (10) is fixedly joggle with the limiting bolt (9), and the outer wall of the limiting bolt (9) movably joggle with the connecting limit frame (7).

3. The automotive radiator fan of claim 1 wherein, The inside of the connecting frame (1) is provided with eight limiting holes, the limiting holes are linearly arranged, and the inner wall of the limiting hole movably joggle with the limiting bolt (9), the limiting baffle (10) and the spring (11).

4. The automotive radiator fan of claim 1 wherein, The transmission device includes a transmission rod (3), the transmission rod (3) is vertically placed, the back surface of the transmission rod (3) is fixedly connected with two limiting bolts (9) at the top and bottom, and the front surface of the two transmission rods (3) is fixedly connected with two transmission rods (4).

5. The automotive radiator fan of claim 1 wherein, The inside of the connecting frame (1) is provided with a moving groove, the inner wall of the moving groove is fixedly connected with a limiting slide rod (14), the outer wall of the limiting slide rod (14) movably joggle with a spring (13), the top end of the spring (13) is fixedly connected with a limiting baffle (12), the inner wall of the limiting baffle (12) is slidably joggle with the limiting slide rod (14), the opposite sides of the two limiting baffles (12) are provided with connecting sliding blocks (15), the opposite sides of the two connecting sliding blocks (15) are fixedly connected with dismounting push blocks (5), the opposite sides of the two dismounting push blocks (5) are fixedly connected with transmission rods (8), and the outer wall of the transmission rod (8) is attached to the inner wall of the connecting frame (1).

6. The automotive radiator fan of claim 5 wherein, The outer side bottom end of the dismounting push block (5) is provided with an inclined surface, and the inclined surface is attached to the inner wall of the transmission rod (4).