An integrated oil pump valve body assembly structure

Abstract

The utility model relates to an integrated oil pump valve body assembly structure and belongs to the technical field of vehicles. The electromagnetic switch valve is controlled by the external power supply, and the on-off of the clutch oil circuit is controlled. The stop plug is matched with the support and the clamping block, the spring and the pressure regulating valve are installed in the support, the oil temperature sensor assembly is connected with the oil pump valve body assembly to transmit the oil pump system temperature, and the support inner ring is matched with three sealing rings to complete the oil circuit sealing function. The utility model newly develops and designs an integrated oil pump, a filter, a control valve body and an oil pump valve body hydraulic system assembly, integrates the mechanical pump, the filter, the control valve body and part of the oil circuit channel into one part assembly, optimizes the space and arrangement of the DHT transmission, provides a large design margin for the transmission system, the shell system and the clutch system, simultaneously makes the overall volume of the DHT transmission smaller, better adapts the vehicle space, and improves the performance and market competitiveness of the product.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle technology, specifically relating to an integrated oil pump valve body assembly structure. Background Technology

[0002] Currently, the cooling and lubrication system of an automatic transmission is typically designed with multiple core components, including an oil pump, cooler, filter, control valve body, and oil passages, to achieve the transmission's lubrication, cooling, and cleaning functions. The oil pump is usually designed as a mechanical pump (gear pump / vane pump) or an electric pump; the cooler uses air cooling (integrated heat sink), water cooling (linked with the engine cooling system), or a combination of both; the filter is a full-flow / bypass filter with a filtration accuracy ≤20μm; the control valve body regulates oil pressure and flow distribution (e.g., proportional valve, solenoid valve); and the oil passages are designed according to the specific layout. Except for the oil passages, each core component is usually designed independently to fulfill its functional requirements. Summary of the Invention

[0003] The present invention aims to develop and design a new hydraulic system assembly integrating an oil pump, filter, control valve body, and part of the oil circuit channel, thereby integrating the mechanical pump, filter, control valve body, and part of the oil circuit channel into a single component assembly, thus optimizing the internal space and layout of the DHT transmission.

[0004] The technical solution adopted by this utility model is:

[0005] An integrated oil pump valve body assembly structure includes an oil filter assembly and an oil pump valve body assembly. The oil filter assembly is bolted to the oil pump valve body assembly. The oil pump valve body assembly includes a front cover assembly, a support assembly, and a drive gear, a driven gear, and a check valve installed between the front cover assembly and the support assembly. The support assembly includes a support and an electromagnetic switch valve, a stop plug, a spring, a pressure regulating valve, an oil temperature sensor assembly, and a support inner ring installed on the support. The electromagnetic switch valve is electrically controlled by an external power source to open and close the clutch oil circuit. The stop plug cooperates with the support and a locking block to install the spring and pressure regulating valve inside the support. The oil temperature sensor assembly is connected inside the oil pump valve body assembly to transmit the oil pump system temperature. The support inner ring cooperates with three sealing rings to complete the oil circuit sealing function. The pressure regulating valve is located at the distribution core of the oil circuit of the oil pump valve body assembly, and the electromagnetic switch valve is located at the pressure end of the oil circuit.

[0006] Compared with the prior art, the present invention has the following advantages:

[0007] This utility model has newly developed and designed an integrated hydraulic system assembly consisting of an oil pump, filter, control valve body, and part of the oil circuit channels. By integrating the mechanical pump, filter, control valve body, and part of the oil circuit channels into a single component assembly, the internal space and layout of the DHT transmission are optimized. This provides greater design margin for the transmission system, housing system, and clutch system, while also reducing the overall size of the DHT transmission, allowing it to better fit into the vehicle space and improving the product's performance and market competitiveness. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model;

[0009] Figure 2 This is a schematic diagram of the oil filter assembly structure of this utility model;

[0010] Figure 3 This is a schematic diagram of the oil pump valve body assembly structure of this utility model;

[0011] Figure 4 This is a schematic diagram of the front cover assembly structure of this utility model;

[0012] Figure 5 This is a schematic diagram of the support assembly structure of this utility model;

[0013] The components include: 1. Oil filter assembly; 2. Oil pump valve body assembly; 3. Lower housing; 4. Filter layer assembly; 5. Upper housing assembly; 6. Sealing ring; 7. Front cover assembly; 8. Drive gear; 9. Driven gear; 10. Check valve; 11. Support assembly; 12. Front cover; 13. Positioning pin; 14. Front cover bushing; 15. Solenoid switch valve; 16. Stop plug; 17. Spring; 18. Pressure regulating valve; 19. Oil temperature sensor assembly; 20. Support inner ring; 21. Support. Detailed Implementation

[0014] To better understand the purpose, structure, and function of this utility model, a more detailed description of this utility model will be provided below with reference to the accompanying drawings.

[0015] like Figure 1 As shown, this utility model provides an integrated oil pump valve body assembly structure, including an oil filter assembly 1 and an oil pump valve body assembly 2; the oil filter assembly 1 is fixed to the oil pump valve body assembly 2 by bolts.

[0016] like Figure 2As shown, the oil filter assembly 1 includes a lower housing 3, a filter layer assembly 4, an upper housing assembly 5, and a sealing ring 6. The lower housing 3 and the upper housing assembly 5 are connected. The filter layer assembly 4 is disposed inside the lower housing 3, and the lower housing 3 has a filter inlet that mates with the filter layer assembly 4. The upper housing assembly 5 is connected to the oil pump valve body assembly 2, and has a filter outlet. The filter outlet is fitted with a sealing ring 6. The filter outlet of the upper housing assembly 5 is connected to the inlet of the support assembly 11.

[0017] The oil filter assembly 1 achieves full-flow filtration of the internal cooling lubricating oil of the transmission through the above four components, with a filtration accuracy of ≤20μm. The oil entering the oil pump valve body assembly 2 is the oil filtered by the oil filter assembly 1, ensuring the cleanliness of the system.

[0018] like Figure 3 As shown, the oil pump valve body assembly 2 includes a front cover assembly 7, a support assembly 11, and a drive gear 8, a driven gear 9, and a one-way valve 10 installed between the front cover assembly 7 and the support assembly 11; wherein, an oil passage cavity is formed between the front cover assembly 7 and the support assembly 11, and the drive gear 8 and the driven gear 9 are meshed and connected within the oil passage cavity.

[0019] The one-way valve 10 is used to supplement the flow of an external electronic pump under specific operating conditions.

[0020] The front cover assembly 7 and the support assembly 11 are fixedly connected by 20 bolts to ensure the stability of the structure and prevent oil leakage.

[0021] like Figure 4 As shown, the front cover assembly 7 includes a front cover 12, a locating pin 13, and a front cover bushing 14. The front cover 12 is provided with the locating pin 13 and the front cover bushing 14. The locating pin 13 cooperates with the locating hole of the support assembly 11. The presence of the locating pin 13 can make the positioning of the front cover 12 and the support 21 more accurate compared to the positioning accuracy of bolts alone.

[0022] The front cover bushing 14 is in direct contact with the rotating mechanical pump drive shaft. The front cover bushing 14 uses a dual-material sintering process, and the contact surface uses a special material to increase wear resistance.

[0023] like Figure 5As shown, the support assembly 11 includes a support 21 and an electromagnetic switch valve 15, a stop plug 16, a spring 17, a pressure regulating valve 18, an oil temperature sensor assembly 19, and a support inner ring 20 mounted on the support 21. The electromagnetic switch valve 15 controls the opening and closing of the clutch oil circuit through an external power supply. The stop plug 16 cooperates with the support 21 and a locking block to install the spring 17 and the pressure regulating valve 18 into the support 21. The oil temperature sensor assembly 19 is connected to the inside of the oil pump valve body assembly 2 to transmit the oil pump system temperature. The support inner ring 20 cooperates with three sealing rings to complete the oil circuit sealing function. The pressure regulating valve 18 is located at the distribution core of the oil circuit of the oil pump valve body assembly 2, and the electromagnetic switch valve 15 is located at the pressure end of the oil circuit.

[0024] The working principle of the hydraulic system assembly of the oil pump valve body is explained below:

[0025] ① The oil pump drive shaft is engaged with the drive gear 8. The drive shaft drives the drive gear 8 to rotate, which in turn drives the driven gear 9 to rotate, forming a sealed container cavity. Oil is drawn through the rotor area by the pressure changes.

[0026] ② All the oil pumped up by the oil pump is filtered through the oil filter assembly 1 to ensure internal cleanliness.

[0027] ③ The cleaning oil flows into the main pressure regulating valve 18 and the electromagnetic switch valve 15 inside the oil pump valve body assembly 2 to distribute the lubricating and cooling cleaning oil to the clutch area, shaft area and motor area to achieve the lubrication and cooling effect.

[0028] The processing technology for each component of this utility model is mature, and the finished product is already in mass production in our company, with sufficient experimental verification.

[0029] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An integrated oil pump valve body assembly structure, characterized in that: The assembly includes an oil filter assembly (1) and an oil pump valve body assembly (2). The oil filter assembly (1) is fixed to the oil pump valve body assembly (2) by bolts. The oil pump valve body assembly (2) includes a front cover assembly (7), a support assembly (11), and a drive gear (8), a driven gear (9), and a check valve (10) installed between the front cover assembly (7) and the support assembly (11). The support assembly (11) includes a support (21) and an electromagnetic switch valve (15), a stop plug (16), a spring (17), a pressure regulating valve (18), and an oil temperature sensor assembly (19) installed on the support (21). The inner ring (20) of the support is connected to the support (21) and the pressure regulating valve (18) is installed inside the support (21) by the external power supply to control the opening and closing of the clutch oil circuit. The stop plug (16) cooperates with the support (21) and a locking block to install the spring (17) and the pressure regulating valve (18) inside the support (21). The oil temperature sensor assembly (19) is connected to the oil pump valve body assembly (2) to transmit the oil pump system temperature. The inner ring (20) of the support cooperates with the three sealing rings to complete the oil circuit sealing function. The pressure regulating valve (18) is set in the distribution core of the oil circuit of the oil pump valve body assembly (2). The electromagnetic switch valve (15) is set at the pressure end of the oil circuit.

2. The integrated oil pump valve body assembly structure according to claim 1, characterized in that: An oil passage cavity is formed between the front cover assembly (7) and the support assembly (11), and the drive gear (8) and the driven gear (9) are meshed in the oil passage cavity.

3. The integrated oil pump valve body assembly structure according to claim 2, characterized in that: The front cover assembly (7) includes a front cover (12), a positioning pin (13), and a front cover bushing (14); the front cover (12) is provided with a positioning pin (13) and a front cover bushing (14), the positioning pin (13) cooperates with the positioning hole of the support assembly (11), and the front cover bushing (14) directly contacts the rotating mechanical pump drive shaft.

4. The integrated oil pump valve body assembly structure according to claim 1, characterized in that: The oil filter assembly (1) includes a lower housing (3), a filter layer assembly (4), an upper housing assembly (5), and a sealing ring (6); the lower housing (3) and the upper housing assembly (5) are connected, the filter layer assembly (4) is provided inside the lower housing (3), and the lower housing (3) has a filter inlet that cooperates with the filter layer assembly (4), the upper housing assembly (5) is connected to the oil pump valve body assembly (2), and a filter outlet is provided on the upper housing assembly (5), and a sealing ring (6) is provided on the filter outlet.

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