A transmission oil pipe circulation cooling structure with a temperature control valve

Abstract

This invention provides a transmission oil pipe circulation cooling structure with a temperature control valve, belonging to the field of automotive piping technology. This invention connects the oil pump, temperature control valve, and radiator through a large circulation channel, and simultaneously connects the oil pump and temperature control valve through a small circulation channel. This allows for rapid oil return when the transmission oil temperature is low, by closing the large circulation channel and opening the small circulation channel, enabling the oil temperature to rise quickly to the operating temperature. This prevents the problem of excessively high oil viscosity at low temperatures during cold starts, which could affect lubrication. Conversely, when the oil temperature is high, the small circulation channel can be closed by opening the large circulation channel, utilizing the radiator for rapid heat dissipation. This prevents the oil temperature from becoming too high, which could affect transmission performance and lifespan. This ensures that the oil circulation loop can be dynamically adjusted according to oil temperature, adapting to different operating conditions.

Description

Technical Field

[0001] This utility model relates to the field of automotive piping system technology, specifically to a transmission oil pipe circulation cooling structure with a temperature control valve. Background Technology

[0002] The car transmission is a core component of the car's power system, directly affecting the car's power output performance. Therefore, ensuring the normal operation of the car transmission is crucial for maintaining normal driving.

[0003] Currently, existing transmissions on the market experience internal temperature increases during operation due to power transmission between internal components and the heat generated by the movement of the components themselves. To cool the transmission, the industry typically uses oil and an oil-cooling pipeline system. The oil carries away the heat from the transmission, while the oil-cooling pipeline system dissipates the heat from the oil, thus maintaining the transmission temperature to meet operational requirements. Although existing oil-cooled transmissions meet these requirements, current oil-cooling pipeline systems usually operate in a fixed circulation mode with a constant flow rate. This means the cooling efficiency of the oil-cooling pipeline system cannot change, resulting in a lack of dynamic adjustment of the oil temperature within the transmission. In other words, existing fixed-circulation oil-cooling pipeline systems cannot dynamically adjust their cooling efficiency based on oil temperature. This can lead to excessively high oil viscosity at low temperatures, causing insufficient lubrication, while insufficient heat dissipation at high temperatures can cause the transmission temperature to rise, affecting transmission performance and lifespan. Therefore, the industry urgently needs a transmission oil pipe circulation cooling structure that can dynamically adjust the circulation loop according to oil temperature changes to adapt to different operational needs. Summary of the Invention

[0004] To address the aforementioned problems in existing technologies, this invention aims to provide a transmission oil pipe circulation cooling structure with a temperature control valve. This structure includes a large circulation channel and a small circulation channel, both connected to an oil pump. The large circulation channel is also connected to a radiator. Furthermore, both the large and small circulation channels are connected to a temperature control valve. When the oil temperature is low, the temperature control valve closes the large circulation channel and opens the small circulation channel, allowing the oil to flow within the small circulation channel and rapidly heat up to the operating temperature, preventing excessively high oil viscosity and insufficient lubrication. Conversely, at high temperatures, the temperature control valve closes the small circulation channel and opens the large circulation channel, allowing the oil to flow within the large circulation channel and ensuring efficient cooling within the radiator. This prevents insufficient heat dissipation that could affect transmission performance and lifespan. This design achieves dynamic adjustment of the circulation channels based on oil temperature, adapting to different usage requirements.

[0005] The specific technical solution is as follows:

[0006] A transmission oil pipe circulation cooling structure with a temperature control valve, characterized by the following features:

[0007] Oil pump, which is located in the transmission oil circulation loop;

[0008] The radiator is located in the transmission oil circulation loop;

[0009] Thermostatic valve includes a valve passage and a valve core. The valve core is slidably disposed in the valve passage. The valve passage includes a first channel and a second channel. When the valve core slides, it selectively opens or closes the first channel and the second channel.

[0010] The transmission oil circulation loop includes a large circulation channel and a small circulation channel. The large circulation channel connects the oil pump and the radiator, and the small circulation channel is connected to the oil pump. The first channel of the thermostatic valve is connected to the large circulation channel, and the second channel is connected to the small circulation channel. When the valve core of the thermostatic valve partially opens both the first and second channels, the large circulation channel and the small circulation channel open simultaneously.

[0011] In the aforementioned gearbox oil pipe circulation cooling structure with a temperature control valve, the length of the small circulation channel is shorter than the length of the large circulation channel.

[0012] In the aforementioned gearbox oil pipe circulation cooling structure with a temperature control valve, the oil temperature when the temperature control valve opens the large circulation channel is greater than 75°C, and the oil temperature when the temperature control valve opens the small circulation channel is less than 60°C.

[0013] In the aforementioned gearbox oil pipe circulation cooling structure with a temperature control valve, when both the first and second channels of the temperature control valve are half-open, the oil temperature is in the range of 60-75℃.

[0014] In the aforementioned gearbox oil pipe circulation cooling structure with a temperature control valve, the temperature control valve is replaced by a solenoid valve.

[0015] The aforementioned transmission oil pipe circulation cooling structure with a temperature control valve also includes a temperature sensor, which is mounted on the transmission.

[0016] The aforementioned gearbox oil pipe circulation cooling structure with a temperature control valve also includes a controller, and the solenoid valve and temperature sensor are all electrically connected to the controller.

[0017] The positive effects of the above technical solution are:

[0018] The aforementioned transmission oil pipe circulation cooling structure with a temperature control valve divides the transmission oil pipe circulation loop into a large circulation channel and a small circulation channel, both of which are connected to a temperature control valve. The temperature control valve has a first channel and a second channel, respectively connected to the large and small circulation channels. When the transmission oil temperature is high, the temperature control valve senses the temperature change and opens the large circulation channel while closing the small circulation channel. This ensures the oil can quickly dissipate heat through the radiator in the large circulation channel, preventing excessively high oil temperatures from affecting transmission performance and lifespan. Conversely, when the oil temperature is low, the temperature-sensing element of the temperature control valve senses the lower oil temperature, closing the large circulation channel and opening the small circulation channel. This ensures the oil can quickly return through the small circulation channel, allowing the oil temperature to rise rapidly to the operating temperature. This prevents excessively high viscosity and insufficient lubrication at low temperatures. This allows for selection of different circulation loops based on oil temperature, meeting dynamic adjustment needs and adapting to different application scenarios. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an embodiment of a gearbox oil pipe circulation cooling structure with a temperature control valve according to the present invention.

[0020] Figure 2 This is a state diagram of a temperature control valve with a temperature control valve-equipped gearbox oil pipe circulation cooling structure according to the present invention.

[0021] Figure 3 This is another state diagram of the temperature control valve in the gearbox oil pipe circulation cooling structure of this utility model.

[0022] Figure 4 This is another state diagram of a temperature control valve in a gearbox oil pipe circulation cooling structure with a temperature control valve according to this utility model.

[0023] In the attached diagram: 1. Oil pump; 2. Radiator; 3. Temperature control valve; 31. First channel; 32. Second channel; 33. Valve core; 4. Large circulation channel; 5. Small circulation channel. Detailed Implementation

[0024] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following embodiments are provided in conjunction with the appendix. Figure 1 To be continued Figure 4 The technical solution provided by this utility model is described in detail, but the following content is not intended to limit this utility model.

[0025] Figure 1 This is a schematic diagram of an embodiment of a gearbox oil pipe circulation cooling structure with a temperature control valve according to this utility model. Figure 1As shown, the transmission oil pipe circulation cooling structure with temperature control valve provided in this embodiment includes: oil pump 1, radiator 2, temperature control valve 3, and transmission oil pipe circulation loop including large circulation channel 4 and small circulation channel 5.

[0026] Specifically, oil pump 1 is installed in the transmission oil pipe circulation loop as the power source for the flow of oil in the transmission oil pipe circulation loop, ensuring that the oil can flow smoothly.

[0027] Specifically, radiator 2 is installed in the transmission oil pipe circulation loop, so that the oil flowing into radiator 2 can dissipate heat quickly and meet the requirements of efficient cooling.

[0028] Figure 2 This is a state diagram of a temperature control valve with a temperature control valve-equipped gearbox oil pipe circulation cooling structure according to the present invention. Figure 3 This is another state diagram of the temperature control valve in the gearbox oil pipe circulation cooling structure of this utility model. Figure 4 This is another state diagram of a temperature control valve in a gearbox oil pipe circulation cooling structure with a temperature control valve according to this utility model. (See diagram below.) Figures 1 to 4 As shown, the temperature control valve 3 includes a valve channel and a valve core 33. The valve core 33 is slidably disposed within the valve channel. When the temperature bulb of the temperature control valve 3 senses a temperature change, it can push the valve core 33 to slide within the valve channel, meeting the requirement of automatic adjustment according to temperature. At this time, the valve channel includes a first channel 31 and a second channel 32. When the valve core 33 slides, it selectively opens or closes the first channel 31 and the second channel 32. This allows the first channel 31 to be closed and the second channel 32 to be opened when the valve core 33 moves into the first channel 31, and the second channel 32 to be closed and the first channel 31 to be opened when the valve core 33 moves into the second channel 32. This achieves the switching between the opening and closing of the first channel 31 and the second channel 32, meeting the usage requirements of switching between the large circulation channel 4 and the small circulation channel 5. It is worth noting that since the temperature control valve 3 is a commonly used valve in pipeline systems that automatically adjusts the valve core position according to temperature changes, there are many models and types, and it is widely used. You can directly select a dual-channel temperature control valve to purchase and assemble according to your needs. Connect the temperature bulb of the temperature control valve 3 to the pipeline connected to the oil pump, so that the oil pumped by the oil pump 1 can also pass through the temperature bulb of the temperature control valve 3, so that the temperature bulb can sense the temperature change of the oil, thereby realizing the adjustment of the valve core 33 position. Therefore, its specific structure and working principle will not be described in detail here.

[0029] Specifically, the large circulation channel 4 connects the oil pump 1 and the radiator 2, ensuring that the oil flowing in the large circulation channel 4 can be cooled by the radiator 2, achieving efficient cooling and preventing the oil temperature from being too high, which could affect the performance and lifespan of the transmission. The small circulation channel 5 is connected to the oil pump 1, and the oil pump 1 pushes the oil to flow in the small circulation channel 5, causing the oil to heat up quickly to the operating temperature, ensuring lubrication. At this time, the first channel 31 of the thermostatic valve 3 is connected to the large circulation channel 4, and the second channel 32 is connected to the small circulation channel 5. That is, when the first channel 31 of the thermostatic valve 3 is open and the second channel 32 is closed, the large circulation channel 4 is connected and the small circulation channel 5 is closed, meeting the need for rapid heat dissipation. Conversely, when the second channel 32 of the thermostatic valve 3 is open and the first channel 31 is closed, the large circulation channel 4 is closed and the small circulation channel 5 is connected, allowing the oil temperature to rise quickly to the operating temperature. Furthermore, when the valve core 33 of the temperature control valve 3 partially opens both the first channel 31 and the second channel 32, the large circulation channel 4 and the small circulation channel 5 can be opened simultaneously, which can meet the requirements of heat dissipation and oil temperature maintenance, and is suitable for operating conditions with moderate oil temperature. It is worth noting that the radiator 2 is a commonly used radiator 2 in existing automobiles. The large circulation channel 4 that promotes oil cooling can be directly used to meet the requirements of efficient cooling. Therefore, the radiator 2 is an existing product, and its specific structure will not be described in detail here.

[0030] More specifically, the length of the small circulation channel 5 is shorter than the length of the large circulation channel 4, ensuring that the small circulation channel 5 is a short-path oil pipe. This allows the oil to quickly flow back into the transmission when passing through the pin circulation channel, ensuring that the oil in the transmission can quickly heat up to the operating temperature, optimizing the cold start lubrication effect of the transmission, and guaranteeing the performance and lifespan of the transmission.

[0031] More specifically, the temperature control valve 3 opens the large circulation channel 4 when the oil temperature is above 75°C. This means that when the transmission oil temperature is high, the temperature control valve 3 senses the high oil temperature and moves the valve core 33 to connect the large circulation channel 4, ensuring its smooth flow. The radiator 2 in the large circulation channel 4 then provides efficient cooling, preventing excessively high oil temperatures from affecting transmission performance and lifespan. Conversely, the temperature control valve 3 opens the small circulation channel 5 when the oil temperature is below 60°C. This means that when the transmission oil temperature is low, the temperature control valve 3 senses the low oil temperature and moves the valve core 33 to connect the small circulation channel 5. The oil circulates directly through the small circulation channel 5, preventing it from entering the radiator 2 and causing excessive heat loss. This allows the oil to quickly heat up to its operating temperature in a short time, avoiding problems such as excessively high oil viscosity and insufficient lubrication at low temperatures. This design is more rational.

[0032] More specifically, when both the first channel 31 and the second channel 32 of the temperature control valve 3 are half-open, the oil temperature is in the range of 60-75℃. At this time, one end of the valve core 33 is located in the first channel 31, and the other end of the valve core 33 is located in the second channel 32. This ensures that when the valve core 33 moves, it will neither close the first channel 31 and the second channel 32, nor fully open the first channel 31 and the second channel 32. That is, the valve core 33 is in the middle position, ensuring that both the first channel 31 and the second channel 32 are half-open. This maintains that both the large circulation channel 4 and the small circulation channel 5 are in a semi-connected state, which can prevent the oil temperature from being too high and ensure that the oil temperature can meet the working requirements.

[0033] More specifically, the temperature control valve 3 can also be replaced by a solenoid valve, that is, remote electrical control can be achieved through the controller, which can also meet the automatic control requirements. That is, when the oil temperature changes, the valve core position of the solenoid valve can be automatically adjusted to meet the usage requirements of switching between different circulation channels.

[0034] More specifically, the transmission is also equipped with a temperature sensor to monitor the temperature of the transmission fluid in real time, providing the necessary conditions for the operation of the solenoid valves.

[0035] More specifically, the solenoid valve and temperature sensor are both electrically connected to a controller, so that the oil temperature monitored by the temperature sensor can be used as the basis for the controller to control the solenoid valve. At the same time, the action of the solenoid valve can also be adjusted according to the temperature change of the oil in the transmission, making the structural design more reasonable.

[0036] The transmission oil pipe circulation cooling structure with a temperature control valve provided in this embodiment includes an oil pump 1, a radiator 2, a temperature control valve 3, and a transmission oil pipe circulation loop including a large circulation channel 4 and a small circulation channel 5. The large circulation channel 4 connects the oil pump 1, the temperature control valve 3, and the radiator 2, while the small circulation channel 5 connects the oil pump 1 and the temperature control valve 3. This allows the small circulation channel 5 to be opened and closed when the transmission oil temperature is low, enabling rapid oil return and a rapid rise in oil temperature to the operating temperature. This prevents the problem of excessively high viscosity of the low-temperature oil during cold starts, which could affect lubrication. Conversely, when the oil temperature is high, the small circulation channel 5 can be closed and the radiator 2 can be used for rapid heat dissipation, preventing the oil temperature from becoming too high and affecting the transmission performance and lifespan. This ensures that the oil circulation loop can be dynamically adjusted according to the oil temperature to adapt to different usage scenarios.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A transmission oil pipe circulation cooling structure with a temperature control valve, characterized in that, include: An oil pump is provided in the transmission oil circulation loop; A radiator is disposed in the transmission oil pipe circulation loop; A temperature control valve includes a valve channel and a valve core, the valve core being slidably disposed within the valve channel, the valve channel including a first channel and a second channel, and when the valve core slides, selectively opening or closing the first channel and the second channel; The transmission oil pipe circulation loop includes a large circulation channel and a small circulation channel. The large circulation channel connects the oil pump and the radiator, and the small circulation channel is connected to the oil pump. The first channel of the temperature control valve is connected to the large circulation channel, and the second channel is connected to the small circulation channel. When the valve core of the temperature control valve partially opens both the first channel and the second channel, the large circulation channel and the small circulation channel open simultaneously.

2. The gearbox oil pipe circulation cooling structure with a temperature control valve according to claim 1, characterized in that, The length of the small circulation channel is less than the length of the large circulation channel.

3. The gearbox oil pipe circulation cooling structure with a temperature control valve according to claim 1, characterized in that, When the temperature control valve opens the large circulation channel, the oil temperature is greater than 75°C; when the temperature control valve opens the small circulation channel, the oil temperature is less than 60°C.

4. The gearbox oil pipe circulation cooling structure with a temperature control valve according to claim 1, characterized in that, When both the first and second channels are half-open, the oil temperature is in the range of 60-75℃.

5. The gearbox oil pipe circulation cooling structure with a temperature control valve according to claim 1, characterized in that, The temperature control valve was replaced with a solenoid valve.

6. The gearbox oil pipe circulation cooling structure with a temperature control valve according to claim 5, characterized in that, It also includes a temperature sensor, which is mounted on the gearbox.

7. The gearbox oil pipe circulation cooling structure with a temperature control valve according to claim 6, characterized in that, It also includes a controller, to which both the solenoid valve and the temperature sensor are electrically connected.

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