A cooling structure of an automobile transmission case
By incorporating components such as a winding pipe column, a limit adjusting screw sleeve, and a cooling fan into the cooling structure of the automotive gearbox housing, a circulation system of outlet and return water pipes is formed, solving the problem of low cooling efficiency in existing technologies and achieving a more efficient water heat dissipation effect.
Patent Information
- Application Number
- CN202522083762.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-28
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-28
AI Technical Summary
In existing automotive transmission cooling systems, relying solely on a fan on one side of the small circulation pipe for water cooling is inefficient and cannot effectively improve cooling efficiency.
A cooling structure for an automotive gearbox housing was designed. By setting up components such as a winding pipe column, a limit adjustment screw sleeve, and a cooling fan, a circulation system of a circulating water outlet pipe and a circulating water return pipe is formed. The cooling fan is used to dissipate heat from the water in the large-area circulating water outlet pipe.
It improves cooling efficiency by using a cooling fan to circulate water outside the large-area water outlet pipe, achieving a more efficient water cooling effect.
Smart Images

Figure CN224680067U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of gearbox cooling, specifically to a cooling structure for an automotive gearbox housing. Background Technology
[0002] A car transmission is a mechanism used to change the speed and torque from the engine. It can change the transmission ratio between the output shaft and the input shaft in a fixed or progressively increasing manner. A transmission consists of a gear shifting mechanism and a control mechanism; some cars also have a power take-off (PTO) mechanism. Most transmission mechanisms use ordinary gear drives, while some use planetary gear drives. Ordinary gear drive transmission mechanisms typically use sliding gears and synchronizers, among others.
[0003] During its operation, the cooling structure is required for auxiliary temperature control. For example, there is a gearbox cooling system with patent publication number CN203335813U. When the engine is started, the small circulation pipe is opened, and the water pump pumps the water in the water tank to each branch. Then the coolant flows to the thermostat and then back to the cylinder head and cylinder block water jacket of the engine. When the large circulation pipe is opened, the water pump delivers the coolant to each branch. The coolant flows from the thermostat to the oil cooler.
[0004] However, the device relies solely on a fan on one side of the small circulation pipe for water cooling, resulting in low efficiency. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this utility model provides a cooling structure for automotive gearbox housings that, by incorporating a winding and limiting structure for the water circulation pipe, allows the fan to dissipate heat over a large area of the water inside the pipe, thereby improving cooling efficiency.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a cooling structure for an automotive gearbox housing, comprising a water tank, a circulating return pipe, a circulating outlet pipe, and a water pump. The circulating outlet pipe is connected to the output side of the water tank, and the water pump is mounted on the circulating outlet pipe. The circulating return pipe is connected to the input side of the water tank. The structure also includes a winding pipe post, a connecting frame, a limiting adjusting screw sleeve, a threaded rod, a limiting plate, a handle, a guide sleeve, a slide bar, a connecting bracket, and a cooling fan. The front middle of the water tank is connected to the rear side of the winding pipe post, and the front end of the winding pipe post is... Three sets of connecting frames are evenly connected in the side ring. The middle rear part of each set of connecting frames is connected to the outer side of a set of limit adjustment screw sleeves. The inner wall of the limit adjustment screw sleeve is screwed to the outer wall of the threaded rod. The inner side of the threaded rod is rotatably connected to a limit piece. The front and rear ends of the outer side of the limit piece are respectively connected to the inner end of a set of slide bars. A set of guide sleeves are connected to the inner side of the front and rear parts of the connecting frame. The inner wall of the guide sleeve is slidably connected to the outer wall of the corresponding slide bar. The outer side of the threaded rod is connected to the middle of the inner side of the handle. The upper middle side of the front end of the water tank is connected to the middle rear side of the cooling fan through the connecting frame.
[0009] Preferably, it also includes an external threaded opening and an internal threaded cover, wherein the rear side of the top of the water tank is connected to the bottom side of the external threaded opening, and the outer side of the external threaded opening is detachably screwed to the inner side of the internal threaded cover.
[0010] Preferably, it also includes a handle, wherein one side of the outer end of the internal threaded cap is connected to the inner side of the handle.
[0011] Preferably, it also includes a liquid level observation window, with the middle left side of the water tank connected to the inner side of the liquid level observation window.
[0012] Preferably, the system also includes an on / off valve and a drain head, wherein the rear side of the bottom of the water tank is connected to the top side of the on / off valve, and a drain head is provided on the bottom side of the on / off valve.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, the present invention provides a cooling structure for an automotive transmission housing, which has the following advantages:
[0015] The water tank is vertically fixed in the corresponding position inside the vehicle compartment, and contains cooling water. The circulating water outlet pipe is wound around the outside of the pipe column in multiple turns. By turning the handle, the threaded rod rotates. The threaded rod is screwed into the limiting adjusting screw sleeve, and through two sets of guide sleeves and sliding bars, the limiting plate moves inward and acts on the outside of the circulating water outlet pipe to limit its position. Thus, with the connection of the connecting frame, the cooling fan can correspond to the outside of the large area of the circulating water outlet pipe. During cooling, the water pump runs, and water is output from the circulating water outlet pipe to the oil cooler for cooling, and then flows back through the circulating water return pipe, forming a circulation between the circulating water outlet pipe and the circulating water return pipe. The cooling fan generates airflow, which acts on the water in the large area of the circulating water outlet pipe to cool it down. By setting the winding and limiting structure of the water outlet circulation pipe, the fan can act on the water in the large area of the pipe to dissipate heat, improving the cooling efficiency. Attached Figure Description
[0016] Figure 1 This is an axial view of the structural schematic diagram of this utility model;
[0017] Figure 2 This utility model Figure 1 The left view;
[0018] Figure 3 This utility model Figure 1 Top view;
[0019] Figure 4 This utility model Figure 1 Front view.
[0020] The following are labels in the attached diagram: 1. Water tank; 2. Circulating return water pipe; 3. Circulating outlet water pipe; 4. Pipeline; 5. Connecting frame; 6. Limit adjusting screw sleeve; 7. Threaded rod; 8. Limiting plate; 9. Tightening handle; 10. Guide sleeve; 11. Sliding strip; 12. Connecting bracket; 13. Cooling fan; 14. External threaded port; 15. Internal threaded cover; 16. Handle; 17. Liquid level observation window; 18. On / off valve; 19. Drain head; 20. Water pump. Detailed Implementation
[0021] 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.
[0022] Example
[0023] Please see Figure 1-4A cooling structure for an automotive transmission housing includes a water tank 1, a circulating return pipe 2, a circulating outlet pipe 3, and a water pump 20. The circulating outlet pipe 3 is connected to the output side of the water tank 1, and the water pump 20 is mounted on the circulating outlet pipe 3. The circulating return pipe 2 is connected to the input side of the water tank 1. The structure also includes a pipe column 4, a connecting frame 5, a limit adjusting screw sleeve 6, a threaded rod 7, a limit plate 8, a handle 9, a guide sleeve 10, a slide bar 11, a connecting bracket 12, and a cooling fan 13. The front side of the water tank 1... The middle part is connected to the rear side of the winding column 4. Three sets of connecting frames 5 are evenly connected circumferentially to the outer side of the front end of the winding column 4. The middle part of the rear side of each set of connecting frames 5 is connected to the outer side of a set of limiting adjustment screw sleeves 6. The inner wall of the limiting adjustment screw sleeve 6 is screwed to the outer wall of the threaded rod 7. The inner side of the threaded rod 7 is rotatably connected to the limiting piece 8. The front and rear ends of the outer side of the limiting piece 8 are respectively connected to the inner end of a set of slide bars 11. A set of guide sleeves 10 are respectively connected to the inner side of the front and rear parts of the connecting frame 5. The inner wall of the guide sleeve 10 is connected to the corresponding... The outer wall of the slide bar 11 is slidably connected, the outer side of the threaded rod 7 is connected to the middle of the inner side of the handle 9, and the upper front side of the water tank 1 is connected to the middle of the rear side of the cooling fan 13 via the connecting bracket 12. The water tank 1 is vertically fixed in the corresponding position in the cabin. Cooling water is contained in the water tank 1. The circulating water pipe 3 is wound around the outer side of the pipe column 4 in multiple turns. By turning the handle 9, the threaded rod 7 is rotated. The threaded rod 7 is screwed into the limit adjusting screw sleeve 6 and is slidably constrained by the slide bar 11 through two sets of guide sleeves 10. The limiting plate 8 moves inward and acts on the outer side of the circulating water outlet pipe 3 to limit the position. Thus, under the connection of the connecting bracket 12, the cooling fan 13 can correspond to the outer side of the large area of the circulating water outlet pipe 3. During cooling, the water pump 20 runs and the water is output from the circulating water outlet pipe 3 to the oil cooler for cooling. The water is then returned by the circulating water return pipe 2, forming a circulation between the circulating water outlet pipe 3 and the circulating water return pipe 2. The cooling fan 13 generates airflow, which acts on the water in the large area of the circulating water outlet pipe 3 to cool it down.
[0024] It also includes an external threaded opening 14 and an internal threaded cover 15. The rear side of the top of the water tank 1 is connected to the bottom side of the external threaded opening 14. The outer side of the external threaded opening 14 is detachably screwed to the inner side of the internal threaded cover 15. Water can be injected into the water tank 1 through the external threaded opening 14. After rotating the screwed internal threaded cover 15 on the outer side of the external threaded opening 14, the outer opening of the external threaded opening 14 can be sealed and protected.
[0025] It also includes a handle 16, with one side of the outer end of the internal threaded cover 15 connected to the inner side of the handle 16; by pinching the handle 16, the internal threaded cover 15 can be rotated, improving convenience.
[0026] It also includes a liquid level observation window 17, which is connected to the inner side of the front middle of the water tank 1; the liquid level observation window 17 allows observation from the outside to the inside, thereby determining the water level and facilitating timely replenishment.
[0027] It also includes an on / off valve 18 and a drain head 19. The bottom rear side of the water tank 1 is connected to the top side of the on / off valve 18, and the bottom side of the on / off valve 18 is connected to the drain head 19. When the on / off valve 18 is opened, water can be drained through the drain head 19, which improves convenience.
[0028] In summary, in the use of a car transmission housing cooling structure, the water tank 1 is vertically fixed in a corresponding position inside the vehicle compartment. Water can be injected into the water tank 1 through the external threaded port 14. After rotating the screw-on internal threaded cap 15 by pinching the handle 16 outside the external threaded port 14, the external opening of the external threaded port 14 can be sealed and protected. The circulating water outlet pipe 3 is wound around the outside of the pipe column 4 in multiple turns. By turning the handle 9, the threaded rod 7 is rotated. The threaded rod 7 is screwed into the limiting adjusting screw sleeve 6. Through the sliding constraint of the two sets of guide sleeves 10 and the slide bar 11, the limiting piece 8 moves inward and acts on the outside of the circulating water outlet pipe 3 to limit its movement at that position. With the connection bracket 12, the cooling fan 13 can be positioned on the outside of the large-area circulating water outlet pipe 3. During cooling, the water is output through the external thread port 14 to the oil cooler for cooling via the circulating water outlet pipe 3, and then returned through the circulating water return pipe 2, forming a circulation between the circulating water outlet pipe 3 and the circulating water return pipe 2. The cooling fan 13 generates airflow, which acts on the water in the large-area circulating water outlet pipe 3 to cool it down. In addition, the water level can be observed from the outside to the inside through the liquid level observation window 17 to determine the water level and facilitate timely replenishment. When the on / off valve 18 is opened, the water can be drained through the drain head 19, improving convenience.
[0029] The cooling fan 13, water pump 20 and on / off valve 18 are commercially available devices known to those skilled in the art, and are equipped with corresponding control systems to fulfill their functions. Here we are simply using them without making any structural or functional improvements, and we will not go into detail about them here.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cooling structure for an automotive gearbox housing, comprising a water tank (1), a circulating return pipe (2), a circulating outlet pipe (3), and a water pump (20), wherein the circulating outlet pipe (3) is connected to the output side of the water tank (1), the water pump (20) is mounted on the circulating outlet pipe (3), and the circulating return pipe (2) is connected to the input side of the water tank (1), characterized in that, It also includes a winding pipe column (4), a connecting frame (5), a limiting adjustment screw sleeve (6), a threaded rod (7), a limiting plate (8), a handle (9), a guide sleeve (10), a slide bar (11), a connecting frame (12), and a cooling fan (13). The front middle of the water tank (1) is connected to the rear side of the winding pipe column (4). Three sets of connecting frames (5) are evenly connected circumferentially on the outer side of the front end of the winding pipe column (4). The rear middle of each set of connecting frames (5) is connected to the outer side of a set of limiting adjustment screw sleeves (6). The limiting adjustment screw sleeves (6) The inner wall is screwed to the outer wall of the threaded rod (7). The inner side of the threaded rod (7) is rotatably connected to the limiting piece (8). The front and rear ends of the limiting piece (8) are respectively connected to the inner ends of a set of slide bars (11). The inner sides of the front and rear parts of the connecting frame (5) are respectively connected to a set of guide sleeves (10). The inner wall of the guide sleeve (10) is slidably connected to the outer wall of the corresponding slide bar (11). The outer side of the threaded rod (7) is connected to the middle of the inner side of the handle (9). The upper middle side of the front end of the water tank (1) is connected to the middle of the rear side of the cooling fan (13) via the connecting frame (12).
2. The automotive gearbox housing cooling structure according to claim 1, characterized in that: It also includes an external threaded opening (14) and an internal threaded cover (15). The rear side of the top of the water tank (1) is connected to the bottom side of the external threaded opening (14), and the outer side of the external threaded opening (14) is detachably screwed to the inner side of the internal threaded cover (15).
3. The automotive gearbox housing cooling structure according to claim 2, characterized in that: It also includes a handle (16), one side of the outer end of the internal threaded cap (15) is connected to the inner side of the handle (16).
4. The automotive gearbox housing cooling structure according to claim 1, characterized in that: It also includes a liquid level observation window (17), and the middle left side of the water tank (1) is connected to the inner side of the liquid level observation window (17).
5. The automotive gearbox housing cooling structure according to claim 1, characterized in that: It also includes an on / off valve (18) and a drain head (19). The bottom rear side of the water tank (1) is connected to the top side of the on / off valve (18), and the bottom side of the on / off valve (18) is connected to the drain head (19).
Citation Information
Patent Citations
Cooling system of speed changing box
CN203335813U