CN222451943U

CN222451943U - Hydraulic control device, hybrid system and vehicle

Info

Publication number: CN222451943U
Application number: CN202421234639.1U
Authority: CN
Inventors: 黄乐臣; 王健; 华煜
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2024-05-31
Filing date: 2024-05-31
Publication date: 2025-02-11
Anticipated expiration: 2034-05-31

Abstract

The utility model discloses a hydraulic control device, a hybrid power system and a vehicle, wherein the hydraulic control device comprises an oil circuit component, the oil circuit component is provided with a first branch, a second branch, a liquid supply liquid path and a converging cavity, the first branch is suitable for circulating liquid at a first temperature, the second branch is suitable for circulating liquid at a second temperature, the liquid supply liquid path is suitable for communicating with a heat dissipation area of a part to be cooled, the converging cavity is used for converging liquid of the first branch and the second branch, the converging cavity is provided with a first inlet, a second inlet and an outlet, the first inlet is communicated with the first branch, the second inlet is communicated with the second branch, and the outlet is communicated with the liquid supply liquid path. According to the hydraulic control device, compared with a traditional hydraulic system, oil with two temperatures can be mixed in the converging cavity and then flows to the part to be cooled through the liquid supply path, so that the heat dissipation efficiency of the part to be cooled can be greatly improved, and the working efficiency and the service life of the part to be cooled can be further ensured.

Description

Hydraulic control device, hybrid power system and vehicle

Technical Field

The utility model relates to the technical field of hybrid power systems, in particular to a hydraulic control device, a hybrid power system and a vehicle.

Background

The hybrid power system is a feasible technical scheme for solving the problems of energy consumption and environmental pollution of the automobile at the present stage, and with the development of battery technology, the automobile power system is more important than the prior art in terms of electric driving capacity, and a hydraulic system is generally used for meeting the requirements of multiple power output forms and multiple platform carrying of the hybrid power system. In the related art, the oil of the cold oil branch of the hybrid power system flows to the driving motor and the bearing clutch for cooling, the oil of the hot oil branch directly flows to the generator for cooling, and the cold oil branch is communicated with the hot oil branch. Because the hot oil branch can supply liquid to the engine for cooling alone, and the higher temperature of hot oil can influence the radiating efficiency of generator to can influence the work efficiency and the life of generator.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a hydraulic control device, in which low-temperature oil after mixing hot oil and cold oil flows to a part to be cooled, so that heat dissipation efficiency of the part to be cooled can be greatly improved, and working efficiency and service life of the part to be cooled are ensured.

Another object of the present utility model is to propose a hybrid system comprising a hydraulic control device as described above.

It is still another object of the present utility model to provide a vehicle including the above hybrid system.

The hydraulic control device comprises a liquid path assembly, a liquid supply liquid path and a converging cavity, wherein the liquid path assembly is provided with a first branch and a second branch, the first branch is cold and is suitable for circulating liquid at a first temperature, the second branch is hot and is suitable for circulating liquid at a second temperature, the liquid supply liquid path is suitable for being communicated with a heat dissipation area of a part to be cooled, the converging cavity is used for converging liquid of the first branch and the second branch, the converging cavity is provided with a first inlet, a second inlet and an outlet, the first inlet is communicated with the first branch, the second inlet is communicated with the second branch, and the outlet is communicated with the liquid supply liquid path.

According to the hydraulic control device provided by the embodiment of the utility model, the first inlet of the converging cavity is communicated with the first branch, the second inlet of the converging cavity is communicated with the second branch, and the outlet of the converging cavity is communicated with the liquid supply path. Therefore, compared with a traditional hydraulic system, the hydraulic system can mix oil with two temperatures in the converging cavity and then flow to the part to be cooled through the liquid supply path, so that the heat dissipation efficiency of the part to be cooled can be greatly improved, and the working efficiency and the service life of the part to be cooled can be further ensured.

According to some embodiments of the utility model, the fluid circuit assembly includes a cooler disposed on the first branch, the first temperature being lower than the second temperature.

According to some embodiments of the utility model, the inlet direction of the first inlet is a first direction, the inlet direction of the second inlet is a second direction, a flow guide wall is arranged in the converging cavity, the flow guide wall extends along the first direction, and the flow guide wall and the second inlet are sequentially arranged in the second direction.

According to some embodiments of the utility model, the second inlet, the guide wall and the outlet are arranged in sequence in the second direction.

According to some embodiments of the utility model, an end of the guide wall adjacent to the first inlet is flush with an end of the second inlet adjacent to the first inlet in the first direction, or an end of the guide wall adjacent to the first inlet protrudes from an end of the second inlet adjacent to the first inlet in the first direction.

According to some embodiments of the utility model, the liquid path assembly further comprises an oil suction branch, one end of the oil suction branch is communicated with the oil basin, one end of the low-pressure oil path is communicated with the other end of the oil suction branch, the other end of the low-pressure oil path is respectively communicated with the second branch and the cooler, the second branch is suitable for being communicated with the oil basin through the low-pressure oil path, and the first branch is suitable for being communicated with the oil basin through the cooler and the low-pressure oil path in sequence.

According to some embodiments of the utility model, the hydraulic control device further comprises an overflow valve, wherein an oil inlet and a feedback end of the overflow valve are communicated with the low-pressure oil path, an oil outlet of the overflow valve is communicated with the oil basin, and/or a differential pressure one-way valve, an oil inlet of the differential pressure one-way valve is communicated with the oil suction branch, and an oil outlet of the differential pressure one-way valve is communicated with the low-pressure oil path.

According to some embodiments of the utility model, the hydraulic control device further comprises an electronic pump in communication with the oil suction branch and the low pressure oil circuit, respectively.

According to some embodiments of the utility model, the hydraulic control device further comprises a bypass valve, an oil inlet of the bypass valve is communicated with the low-pressure oil path, an oil outlet of the bypass valve is communicated with the second branch path, and/or a flow valve, an oil inlet of the flow valve is communicated with the liquid supply path, and an oil outlet of the flow valve is suitable for being communicated with a driving motor.

A hybrid power system according to an embodiment of the second aspect of the utility model includes the hydraulic control device according to the embodiment of the first aspect of the utility model described above.

A vehicle according to an embodiment of a third aspect of the present utility model includes a hybrid system according to an embodiment of the above second aspect of the present utility model.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic illustration of a hydraulic control apparatus according to an embodiment of the present utility model;

FIG. 2 is an exploded view of the hydraulic control apparatus shown in FIG. 1;

Fig. 3 is a schematic view of a first oil passage plate, a separator, and a second oil passage plate of the hydraulic control apparatus shown in fig. 1;

FIG. 4 is a partial cross-sectional view of the hydraulic control apparatus shown in FIG. 1;

Fig. 5 is a schematic view of a first oil passage plate of the hydraulic control apparatus according to the embodiment of the utility model;

fig. 6 is a schematic view of a second oil passage plate of the hydraulic control apparatus according to the embodiment of the utility model;

FIG. 7 is a schematic illustration of a hydraulic control device and an oil cooler according to an embodiment of the present utility model;

Fig. 8 is a partial enlarged view of a hydraulic control apparatus according to an embodiment of the present utility model;

fig. 9 is a schematic diagram of a hydraulic control apparatus according to an embodiment of the present utility model.

Reference numerals:

100, a hydraulic control device;

1, a first oil path plate, 11, a second branch, 12, a liquid supply path, 13, a low-pressure oil path, 14, a first mounting hole, 15, an oil suction branch, 16, a high-pressure oil path, 17, a first bearing, 18, a third mounting hole, 19, a sixth mounting hole, 111, a seventh mounting hole, 112, a ninth mounting hole, 113, a suction filter hole, 114, a second mounting hole and 115, a guide wall;

2, a second oil path plate, 21, a first branch, 23, a driving motor oil port, 24, a pump body oil inlet, 25, a pump body oil outlet, 26, a fifth mounting hole, 27, a clutch oil port, 28, an eighth mounting hole, 29, a generator oil port, 211, a tenth mounting hole, 212, an eleventh mounting hole, 213, a cooler oil inlet, 214, a cooler oil outlet, 215, a fourth mounting hole, 3, a bypass valve, 4, 5, a mechanical pump, 6, 61, a pump wheel, 62, 7, a suction filter, 8, a control valve, 9, a pressure regulating valve, 10, an overflow valve, 20, a clutch proportional valve, 30, a first buffer, 40, a third buffer, 50, a switch valve, 60, a safety valve, 70, a differential pressure check valve, 80, a second check valve, 90, a partition, 110, 120, a wire harness assembly, 130, a first inlet, 140, a second inlet, 150, 160, a confluence cavity;

200 parts of cooler, 300 parts of oil basin and 400 parts of filter press.

Detailed Description

A hydraulic control apparatus 100 according to an embodiment of the utility model will be described below with reference to fig. 1 to 9, in which a hybrid system in which the hydraulic control apparatus 100 is applied to a vehicle is exemplified.

As shown in fig. 1-9, a hydraulic control apparatus 100 according to an embodiment of the first aspect of the present utility model includes a hydraulic circuit assembly.

Specifically, the liquid path assembly has a first branch 21, a second branch 11, a liquid supply path 12, and a confluence chamber 160, the first branch 21 is adapted to circulate a liquid at a first temperature, the second branch 1 is adapted to circulate a liquid at a second temperature, the liquid supply path 12 is adapted to communicate with a heat dissipation area of a member to be cooled, the confluence chamber 160 is used for collecting the liquid of the first branch 11 and the second branch 21, the confluence chamber 160 has a first inlet 130, a second inlet 140, and an outlet 150, the first inlet 130 communicates with the first branch 11, the second inlet 140 communicates with the second branch 21, and the outlet 150 communicates with the liquid supply path 12.

For example, in the example of fig. 1-9, the oil inlet of the second branch 11 may be in communication with the oil basin 300, the first branch 21 may be in communication with the filter press 400, the oil inlet of the cooler 200 may be in communication with the oil basin 300, the liquid supply path 12 may be in communication with the first branch 21 and the second branch 11 through the confluence chamber 160, and the other end of the liquid supply path 12 may be in communication with the heat dissipation areas of the driving motor, the rear case bearing, the generator, the front case bearing, the shaft teeth, the clutch, and the clutch solenoid valve waiting cooling parts, respectively. When the hydraulic control device 100 works, part of the oil with the second temperature in the oil basin 300 flows to the second branch 11 through the first oil port, then flows to the converging cavity 160 through the second branch 11 and the second inlet 140, and after the other part of the oil with the second temperature in the oil basin 300 is changed into the oil with the first temperature, the oil flows to the first branch 21 through the filter pressing piece 400, flows to the converging cavity 160 through the first branch 21 and the first inlet 130, and after being mixed in the converging cavity 160, the oil with the two temperatures flows to the liquid supplying channel 12 through the outlet 150, so as to reduce the temperature of the oil in the liquid supplying channel 12, thereby increasing the temperature difference between the part to be cooled (namely the driving motor, the rear box bearing, the generator, the front box bearing, the shaft teeth, the clutch and the clutch electromagnetic valve) and the oil in the liquid supplying channel 12, and further improving the heat dissipation efficiency.

In the related art, the oil of the cold oil branch of the hybrid power system flows to the driving motor and the bearing clutch for cooling, the oil of the hot oil branch directly flows to the generator for cooling, and the cold oil branch is communicated with the hot oil branch. Because the hot oil branch can supply liquid to the engine for cooling alone, and the higher temperature of hot oil can influence the radiating efficiency of generator to can influence the work efficiency and the life of generator. That is, the oil of the cold oil branch and the hot oil branch are not completely mixed.

However, in the present application, the oil of the first temperature and the oil of the second temperature need to flow into the converging chamber 160, the two different temperatures of the oil are mixed in the converging chamber 160, and the mixed oil dissipates heat in the heat dissipation area flowing to the parts to be cooled (i.e. the driving motor, the rear box bearing, the generator, the front box bearing, the shaft teeth, the clutch and the clutch solenoid valve).

According to the hydraulic control apparatus 100 of the embodiment of the utility model, by communicating the first inlet 130 of the confluence chamber 160 with the first branch 11, the second inlet 140 of the confluence chamber 160 is communicated with the second branch 21, and the outlet 150 of the confluence chamber 160 is communicated with the liquid supply passage 12. Therefore, compared with a traditional hydraulic system, the hydraulic system can mix oil with two temperatures in the confluence cavity 160 and then flow to the part to be cooled through the liquid supply path 12, so that the heat dissipation efficiency of the part to be cooled can be greatly improved, and the working efficiency and the service life of the part to be cooled can be further ensured.

According to some embodiments of the utility model, the liquid circuit assembly comprises a cooler 200, e.g. an oil cooler, arranged on the first branch 11, the first temperature being lower than the second temperature. As shown in fig. 7, the first branch 11 is communicated with an oil outlet of the cooler 200, such as an oil cooler, through the filter pressing member 400, and an oil inlet of the cooler 200, such as an oil cooler, is communicated with the oil basin, so that the oil at the second temperature in the oil basin is changed into the oil at the first temperature through the cooling of the cooler 200, such as the oil cooler, and the oil at the first temperature flows to the first branch 21 and the first inlet 130 through the filter pressing member 400 and flows to the confluence cavity 160. Thus, the temperature difference between the first temperature and the second temperature can be increased through the cooler 200, so that the temperature of the mixed oil can be reduced, and the heat dissipation efficiency of the part to be cooled can be improved.

The oil with higher temperature in the second branch is hot oil, the oil with lower temperature in the first branch can be cold oil, and the hot oil and the cold oil are relatively speaking and are not limited by specific temperature values.

According to some embodiments of the present utility model, the inlet direction of the first inlet 130 is a first direction (e.g., up-down direction in fig. 7), and the inlet direction of the second inlet 140 is a second direction (e.g., left-right direction in fig. 7). The converging chamber 160 is provided with a guide wall 115, the guide wall 115 extends along a first direction, and the guide wall 115 and the second inlet 140 are sequentially arranged along a second direction. So configured, after the second temperature oil in the second branch 21 flows to the converging chamber 160 through the second inlet 140, the second temperature oil can slow down the flow rate through the blocking of the guiding wall and slowly flow along the first direction, so that the second temperature oil and the first temperature oil can be fully mixed.

Further, as shown in fig. 7, the second inlet 140, the guide wall 115, and the outlet 150 are sequentially disposed in the second direction. That is, the second inlet 140, the guide wall 115, and the outlet 150 may be located at the same side of the first direction, and the first inlet 130 is located at the other side of the first direction. Therefore, after the oil at the second temperature in the second branch 21 flows to the converging cavity 160 through the second inlet 140, the flow speed of the oil at the second temperature is reduced by blocking of the guide wall, and the oil flows slowly along the first direction, so that the oil at the second temperature is mixed with the oil at the first temperature, the mixed oil turns to the outlet 150, that is, the flow path is approximately L-shaped, and before the mixed oil flows out of the outlet 150, the path of the mixed oil is increased due to the existence of corners, so that the mixed oil can be further fully mixed.

In some alternative embodiments, referring to fig. 7, an end of the deflector wall 115 adjacent the first inlet 130 is flush with an end of the second inlet 140 adjacent the first inlet 130 in the first direction. I.e. the height of the deflector wall 115 in the first direction corresponds to the height of the second inlet 140 in the first direction. The setting can increase the water conservancy diversion route of the fluid of second temperature, can further reduce the velocity of flow of the fluid of second temperature, does benefit to the fluid of two different temperatures and carries out intensive mixing.

In other alternative embodiments, an end of the deflector wall 115 adjacent the first inlet 130 protrudes from an end of the second inlet 140 adjacent the first inlet 130 in the first direction. I.e. the height of the deflector wall 115 in the first direction is greater than the height of the second inlet 140 in the first direction. So set up, the water conservancy diversion route of the fluid that can further increase the second temperature can further reduce the velocity of flow of the fluid of second temperature, does benefit to the fluid of two different temperatures and carries out intensive mixing.

According to some embodiments of the present utility model, as shown in fig. 9, the fluid passage assembly includes a first fluid passage plate 1 and a second fluid passage plate 2, the second fluid passage plate 2 being provided at one side of the first fluid passage plate 1 in a first direction, the first fluid passage plate 1 and the second fluid passage plate 2 together defining a confluence chamber 160, the first fluid passage plate 1 having a second inlet 140 formed therein, the first fluid passage plate 1 having a guide wall 115 thereon, the guide wall 115 extending toward the second fluid passage plate 2, the second fluid passage plate 2 having a first inlet 130 formed at one side thereof remote from the first fluid passage plate 1.

According to some embodiments of the present utility model, referring to fig. 6 and 7, the fluid circuit assembly further has an oil suction branch 15 and a low pressure oil circuit 13, one end of the oil suction branch 15 is communicated with the oil basin 300, one end of the low pressure oil circuit 13 is communicated with the other end of the oil suction branch 15, that is, the low pressure oil circuit 13 is communicated with the oil basin 300 through the oil suction branch 15, the other end of the low pressure oil circuit 13 is respectively communicated with the second branch 11 and the cooler 200, the second branch 11 is adapted to be communicated with the oil basin 300 through the low pressure oil circuit 13, and the first branch 21 is adapted to be communicated with the oil basin through the oil cooler 200 and the low pressure oil circuit 13 in sequence.

The oil pressure of the oil in the low-pressure oil line 13 is small, and the oil pressure in the low-pressure oil line 13 may be sufficient to allow the oil to be delivered to the member to be cooled.

As shown in fig. 6 and 7, the second oil passage plate 2 is formed with a cooler oil inlet 213 and a cooler oil outlet 214, the oil inlet of the cooler 200 communicates with the cooler oil inlet 213, the cooler oil inlet 213 communicates with the low pressure oil passage 13, and the oil outlet of the cooler 200 communicates with the cooler oil outlet 214 through the filter 400. When the hydraulic control device 100 works, oil in the oil basin 300 can flow to the low-pressure oil path 13, so that the first oil path plate 1 is filled with oil, part of hot oil in the low-pressure oil path 13 flows to the converging cavity 160 through the second branch 11, the other part of hot oil in the low-pressure oil path 13 flows to the cooler 200 through the cooler oil inlet 213 for cooling, cooled cold oil flows to the converging cavity 160 through the oil outlet of the cooler 200 and the first branch 21 of the filter pressing piece 400, and the cold oil and the hot oil are mixed and then flow to the liquid supply path 12 for radiating the subsequent part to be cooled.

Further, the hydraulic control device 100 further includes an overflow valve 10, the overflow valve 10 is disposed in the fifth mounting hole 26 of the second oil circuit board 2, both an oil inlet and a feedback end of the overflow valve 10 are communicated with the low pressure oil circuit 13, and an oil outlet of the overflow valve 10 is communicated with the oil basin 300. As shown in fig. 1 to 3, the fifth mounting hole 26 is located on one side in the width direction of the second oilway plate 2. The feedback end of the relief valve 10 is communicated with the low-pressure oil path 13 through an orifice, the relief valve 10 can limit the pressure of the hydraulic control device 100, the load of the low-pressure oil path 13 is ensured not to exceed a safety value, and redundant oil can flow to the oil basin 300 through the relief valve 10.

As shown in fig. 1 to 6, the hydraulic control device 100 further includes a differential pressure check valve 70, the differential pressure check valve 70 is disposed in the tenth mounting hole 211 of the second oil circuit board 2, an oil inlet of the differential pressure check valve 70 is communicated with the oil suction branch 15, and an oil outlet of the differential pressure check valve 70 is communicated with the low pressure oil circuit 13. A front feedback hole of the differential pressure check valve 70 may be provided on the partition 90 and communicate with an oil outlet of the differential pressure check valve 70. The rear feedback hole of the differential pressure check valve 70 may also be provided on the partition 90 and communicate with the oil inlet of the relief valve 10 so as to prevent the oil from flowing back to the relief valve 10 by controlling the opening and closing of the differential pressure check valve 70 by the differential pressure.

According to some embodiments of the present utility model, the hydraulic control apparatus 100 further includes a bypass valve 3 and/or a flow valve 4, the bypass valve 3 is disposed in the first mounting hole 14 of the first oil circuit board 1, an oil inlet of the bypass valve 3 is communicated with the low pressure oil circuit 13, and an oil outlet of the bypass valve 3 is communicated with the second branch 11, that is, oil in the low pressure oil circuit 13 flows to the second branch 11 through the bypass valve 3. The flow valve 4 is arranged in the second mounting hole 114 of the first oil circuit board 1, the oil inlet of the flow valve 4 is communicated with the liquid supply channel 12, the oil outlet of the flow valve 4 is communicated with the driving motor oil port 23 of the second oil circuit board 2, namely, the oil in the liquid supply channel 12 flows to the driving motor through the flow valve 4 and the driving motor oil port 23.

Referring to fig. 3 and 7, the first and second mounting holes 14 and 114 are each formed at one side in the width direction (e.g., the front-rear direction in fig. 1) of the first oil passage plate 1, and the first and second mounting holes 14 and 114 are spaced apart in the length direction (e.g., the left-right direction in fig. 1) of the first oil passage plate 1. The bypass valve 3 is connected in series with the second branch 11 and the bypass valve 3 is connected in parallel with the cooler 200 and the press 400. The driving motor oil port 23 is connected with the driving motor so that the oil in the liquid supply path 12 can flow to the driving motor, and the mixed low-temperature oil can flow to the driving motor by using the driving motor oil port 23 so as to radiate the driving motor. The flow valve 4 is arranged between the driving motor and the liquid supply path 12, so that the flow of oil flowing to the driving motor can be controlled, heat dissipation of the driving motor is realized, and meanwhile, excessive oil in the driving motor is prevented from leaking.

Alternatively, the bypass valve 3 may be composed of a spool, a spring, a plug, and a shutter. The flow valve 4 may be composed of an on-off solenoid valve and a fixing bolt.

Still further, the fluid circuit assembly also has a high pressure fluid circuit 16. The hydraulic control device 100 further comprises a mechanical pump 5 and an electronic pump 6, wherein the mechanical pump 5 is arranged on the second oil circuit board 2, the mechanical pump 5 is respectively communicated with the oil suction branch 15 and the high-pressure oil circuit 16, the electronic pump 6 is arranged on the second oil circuit board 2, and the electronic pump 6 is respectively communicated with the oil suction branch 15 and the low-pressure oil circuit 13. As shown in fig. 2, 4 and 8, a mounting chamber is formed on the second oil passage plate 2, and the mechanical pump 5 is mounted in the mounting chamber. The second oil circuit board 2 is provided with a pump body oil inlet 24 and a pump body oil outlet 25, and the pump body oil inlet 24 and the pump body oil outlet 25 are communicated with the electronic pump 6. The oil pressure of the oil in the high-pressure oil line 16 is higher than that of the oil in the low-pressure oil line 15, but the oil pressure in the high-pressure oil line 16 ensures that the oil can drive the components such as the clutch or the synchronizer to be combined and keep the combined state to realize transmission.

When the mechanical pump 5 works, the mechanical pump 5 can pump the oil in the oil basin 300 to the oil suction branch 15, the oil in the oil suction branch 15 enters the low-pressure oil suction side of the mechanical pump 5, is pressed into the high-pressure side through the rotary engagement of the mechanical pump 5, and flows to the high-pressure oil way 16.

Similarly, when the electronic pump 6 works, the electronic pump 6 can pump the oil in the oil basin 300 to the oil suction branch 15, and the oil in the oil suction branch 15 flows to the electronic pump 6 through the pump body oil inlet 24 and then flows to the low-pressure oil path 13 through the pump body oil outlet 25. By this arrangement, the oil suction path can be greatly shortened, so that the energy loss can be reduced, and the hydraulic control apparatus 100 is compact.

According to some embodiments of the present utility model, as shown in fig. 8, a first bearing 17 is provided on the first oil circuit board 1, and one end of the mechanical pump 5 is connected to the first bearing 17 through the second oil circuit board 2. That is, the first bearing 17 is integrated on the first oil passage plate 1 to ensure smooth rotation of the electronic pump 6, while effectively improving the safety factor and the service life of the mechanical pump 5. Wherein, an orifice is formed on the first bearing 17 to control the oil flow. Alternatively, the first bearing 17 may be a needle bearing, but is not limited thereto.

According to some embodiments of the utility model, the mechanical pump 5 comprises a pump wheel 61 and a plurality of second bearings 62, in the description of the utility model "plurality" means two or more. The pump impeller 61 is mounted on the second oil passage plate 2, and one end of the pump impeller 61 is connected to the first bearing 17 through the second oil passage plate 2. The plurality of second bearings 62 are provided on the second oil passage plate 2, and the plurality of second bearings 62 are provided on both sides of the pump impeller 61 in the axial direction, respectively. For example, in the example of fig. 8, the second bearings 62 are two, the two bearings are spaced apart in the axial direction of the pump impeller 61, and the second bearings 62 are press-fitted into the mounting cavities of the second oil passage plate 2 to support the pump impeller 61 in the mounting cavities. Wherein the pump wheel 61 is connected to splines in the mounting cavity for transmitting rotational speed and torque. By connecting the pump wheel 61 with the first bearing 17, the safety factor of the pump wheel 61 can be effectively improved so that the service life of the first bearing 17 can be prolonged.

According to some embodiments of the present utility model, the hydraulic control apparatus 100 further includes a suction filter 7, the suction filter 7 being provided on the first oil passage plate 1, and the suction filter 7 being respectively communicated with the oil pan 300 and the suction branch 15. As shown in fig. 1 to 4, the first oil circuit board 1 is formed with a suction hole 13, and the suction hole 13 is located at one side of the length direction of the first oil circuit board 1, the suction filter 7 is installed at the suction hole 13, the suction filter 7 has an oil passage, two ends of the oil passage are respectively connected with the oil basin 300 and the oil suction branch 15, and the oil of the oil basin 300 can flow to the mechanical pump 5 and the electronic pump 6 through the oil passage and the oil suction branch of the suction filter 7. Through set up suction filter 7 between first oilway board 1 and oil pan 300, suction filter 7 can filter the impurity in the fluid to make the fluid that flows to oil absorption branch road 15 cleaner, avoid causing the damage to mechanical pump 5 and electronic pump 6.

According to some embodiments of the present utility model, as shown in fig. 2 and 3, the hydraulic control device 100 further includes a control valve 8 and a pressure regulating valve 9, the control valve 8 is disposed in the third mounting hole 18 of the first oil circuit board 1, and an oil inlet of the control valve 8 communicates with the high-pressure oil circuit 16. The pressure regulating valve 9 is arranged in the fourth mounting hole 215 of the second oil circuit board 2, the oil inlet of the pressure regulating valve 9 is communicated with the high-pressure oil circuit 16, the control end of the pressure regulating valve 9 is communicated with the oil outlet of the control valve 8, the feedback end of the pressure regulating valve 9 is communicated with the high-pressure oil circuit 16, and the oil outlet of the pressure regulating valve 9 is suitable for being communicated with the oil basin 300.

Referring to fig. 2 and 3, the third mounting hole 18 is located between the first mounting hole 14 and the second mounting hole 114, i.e., the control valve 8 is located between the bypass valve 3 and the flow valve 4. The control valve 8 may include a solenoid valve body, a flapper, and a fixing bolt. The fourth mounting hole 215 and the fifth mounting hole 26 are formed on the same side in the width direction (e.g., the front-rear direction in fig. 3) of the second oil passage plate 2, and the pressure regulating valve 9, the bypass valve 3, and the relief valve 10 are located on the same side in the width direction of the hydraulic control apparatus 100, making the structure of the hydraulic control apparatus 100 more compact. Wherein the movement of the pressure regulating valve 9 can be controlled by connecting the oil outlet of the control valve 8 to the control end of the pressure regulating valve 9. The pressure regulating valve 9 may be composed of a spool, a spring, a plug, and a flapper.

Specifically, referring to fig. 9, the oil in the oil pan 300 may flow to the low pressure oil suction side of the mechanical pump 5 through the suction filter 7, be pressed into the high pressure side through the rotational engagement of the mechanical pump 5, and then flow to the high pressure oil path 16, and the oil flowing out of the high pressure oil path 16 flows through the control valve 8 and the pressure regulating valve 9, respectively, wherein the control end of the pressure regulating valve 9 may be regulated by the control valve 8, and the valve core moves when the springs cooperate to form an opening restriction maintaining pressure, and the surplus oil flows to the oil pan 300 through the oil outlet.

Alternatively, the control valve 8 may be a pilot-operated proportional solenoid valve. But is not limited thereto.

According to some embodiments of the present utility model, the hydraulic control apparatus 100 further includes a clutch proportional valve 20, the clutch proportional valve 20 is disposed in the sixth mounting hole 19 of the first oil path plate 1, an oil inlet of the clutch proportional valve 20 is in communication with the high pressure oil path 16, a first oil outlet of the clutch proportional valve 20 is in communication with the clutch oil port 27 of the second oil path plate 2, and a second oil outlet of the clutch proportional valve 20 is adapted to be in communication with the oil basin 300, wherein an oil inlet of the clutch proportional valve 20 is selectively in communication with one of the first oil outlet and the second oil outlet of the clutch proportional valve 20.

Referring to fig. 1 to 3, the sixth mounting hole 19 is located at one end of the first oil passage plate 1 away from the bypass valve 3, that is, the clutch proportional valve 20 and the bypass valve 3 are located at both ends of the first oil passage plate 1 in the length direction, respectively. When the clutch is combined, the oil inlet of the clutch proportional valve 20 is communicated with the first oil outlet of the clutch proportional valve 20, so that oil flows to the clutch through the clutch proportional valve 20 and the clutch oil port 27, and normal operation of the clutch is ensured.

Alternatively, the clutch proportional valve 20 may be constituted by a proportional solenoid valve, a shutter, and a fixing bolt.

Further, as shown in fig. 1 to 3 and 9, the hydraulic control apparatus 100 further includes a first damper 30 and a second damper (not shown), the first damper 30 being provided in the seventh mounting hole 111 of the first oil passage plate 1, the first damper 30 being in communication with the oil outlet of the control valve 8, the oil outlet of the control valve 8 being in communication with the control end of the pressure regulating valve 9, whereby the first damper 30 can absorb pressure fluctuations of the control end of the pressure regulating valve 9. The second damper is provided on the high-pressure oil passage 16 of the first oil passage plate 1, and since the feedback end of the pressure regulating valve 9 communicates with the high-pressure oil passage 16, the second damper can absorb pressure fluctuations of the feedback end of the pressure regulating valve 9. Thereby, the two dampers can absorb pressure fluctuations from the control end and the feedback end of the pressure regulating valve 9, effectively suppressing the pressure fluctuations of the hydraulic control apparatus 100.

Further, the hydraulic control apparatus 100 further includes a third damper 40, the third damper 40 being provided in the second oil passage plate 2, the third damper 40 being in communication with the first oil outlet of the clutch proportional valve 20 for absorbing pressure fluctuation of the clutch

In some alternative embodiments, as shown in fig. 1 and 2, the first damper 30, the control valve 8, the clutch proportional valve 20, and the flow valve 4 are all located on the same side of the first oil passage plate 1 away from the second oil passage plate 2, i.e., the first damper 30, the control valve 8, the clutch proportional valve 20, and the flow valve 4 are all located on one side in the thickness direction of the first oil passage plate 1. And the first damper 30, the control valve 8, the clutch proportional valve 20, and the flow valve 4 are spaced apart in the length direction of the second oilway plate 2. By the arrangement, the structure of the hydraulic control device 100 can be more compact, and the miniaturization design of the hydraulic control device 100 is facilitated.

According to some embodiments of the present utility model, referring to fig. 1-6, the hydraulic control apparatus 100 further includes a switching valve 50 and a safety valve 60, the switching valve 50 is disposed in the eighth mounting hole 28 of the second oil circuit board 2, an oil inlet of the switching valve 50 is communicated with the liquid supply passage 12, an oil outlet of the switching valve 50 is communicated with the generator oil port 29 of the second oil circuit board 2, and a control end of the switching valve 50 is communicated with an oil outlet of the control valve 8. The generator oil port 29 may be in communication with the generator stator liquid supply path 12. The switch valve 50 can be composed of a valve core, a spring and a baffle plate, and the opening and closing of the switch valve 50 are controlled under the combined action of the output pressure of the control valve 8 and the spring force of the switch valve 50, so that the oil flow rate flowing to the stator liquid supply path 12 of the generator is controlled.

The relief valve 60 is provided in the ninth mounting hole 112 of the first oil passage plate 1, and an oil inlet of the relief valve 60 communicates with the high-pressure oil passage 16. The safety valve 60 may be composed of a steel ball, a spring, and a baffle plate, wherein the pre-tightening force of the spring acts on the steel ball, so that the steel ball is sealed on the conical surface, and the safety valve 60 is ensured not to be opened under the condition that the safety limit value is smaller than the safety limit value, thereby preventing the pressure of the hydraulic control device 100 from exceeding the limit and bursting.

According to some embodiments of the present utility model, as shown in fig. 1 to 6, the hydraulic control apparatus 100 further includes a second check valve 80, the second check valve 80 is disposed in the eleventh mounting hole 212 of the second oil circuit board 2, an oil inlet of the second check valve 80 is communicated with an oil outlet of the pressure regulating valve 9, and an oil outlet of the second check valve 80 is communicated with an oil inlet of the relief valve 10. The feedback hole of the second check valve 80 is arranged on the valve core of the second check valve 80 and is communicated with the oil outlet of the second check valve 80, so that the opening and closing of the second check valve 80 are controlled by the pressure difference, and the oil is prevented from flowing back to the pressure regulating valve 9.

Alternatively, the differential pressure check valve 70 and the second check valve 80 may each be composed of a spool, a spring, a plug, a baffle.

In addition, as shown in fig. 1 and 2, the hydraulic control device 100 further includes a wire harness assembly 110, the wire harness assembly 110 is composed of terminals, wire harnesses and buckles, the wire harness assembly 110 is respectively connected with the control valve 8, the clutch proportional valve 20 and the flow valve 4, and the wire outlet direction is kept on the same side, so that the arrangement is compact and the structure is simple.

A hybrid power system (not shown) according to an embodiment of the second aspect of the utility model includes the hydraulic control apparatus 100 according to the embodiment of the first aspect of the utility model described above.

According to the hybrid power system provided by the embodiment of the utility model, by adopting the hydraulic control device 100, the temperature uniformity of the hybrid power system can be ensured, and the condition that the temperature of a certain part of the hybrid power system is too high is avoided.

A vehicle (not shown) according to an embodiment of the third aspect of the utility model includes a hybrid system according to an embodiment of the above-described second aspect of the utility model.

According to the vehicle provided by the embodiment of the utility model, by adopting the hybrid power system, the vehicle can be ensured to have good power performance, and the market competitiveness is improved.

Other components and operations of a vehicle according to embodiments of the utility model are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present utility model, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

Although embodiments of the present utility model 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 therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. A hydraulic control device, characterized in that it comprises a fluid circuit assembly, wherein the fluid circuit assembly has:

A first branch, suitable for flowing a liquid at a first temperature;

The second branch is suitable for circulating liquid at a second temperature;

A liquid supply path, adapted to communicate with a heat dissipation area of a component to be cooled; and

The confluence chamber is used to collect the liquids of the first branch and the second branch. The confluence chamber has a first inlet, a second inlet and an outlet. The first inlet is connected to the first branch, the second inlet is connected to the second branch, and the outlet is connected to the liquid supply path.

2 . The hydraulic control device according to claim 1 , wherein the fluid circuit assembly comprises a cooler disposed on the first branch circuit, and the first temperature is lower than the second temperature.

3. The hydraulic control device according to claim 1, characterized in that the inlet direction of the first inlet is a first direction, and the inlet direction of the second inlet is a second direction;

A guide wall is disposed in the confluence cavity, the guide wall extends along the first direction, and the guide wall and the second inlet are sequentially disposed in the second direction.

4 . The hydraulic control device according to claim 3 , wherein the second inlet, the guide wall and the outlet are arranged in sequence in the second direction. 5 .

5. The hydraulic control device according to claim 4, characterized in that in the first direction, one end of the guide wall adjacent to the first inlet is flush with one end of the second inlet adjacent to the first inlet; or

In the first direction, one end of the guide wall adjacent to the first inlet protrudes beyond one end of the second inlet adjacent to the first inlet.

6. The hydraulic control device according to any one of claims 1 to 5, characterized in that the fluid circuit assembly further comprises:

An oil suction branch, one end of which is connected to the oil basin;

A low-pressure oil circuit, one end of which is connected to the other end of the oil suction branch, and the other end of which is respectively connected to the second branch and the cooler, the second branch is suitable for connecting to the oil pan through the low-pressure oil circuit, and the first branch is suitable for connecting to the oil pan through the oil cooler and the low-pressure oil circuit in sequence.

7. The hydraulic control device according to claim 6, characterized in that it also includes:

A relief valve, the oil inlet and feedback end of the relief valve are both connected to the low-pressure oil circuit, and the oil outlet of the relief valve is connected to the oil pan; and/or

A pressure differential one-way valve, wherein the oil inlet of the pressure differential one-way valve is connected to the oil suction branch, and the oil outlet of the pressure differential one-way valve is connected to the low-pressure oil circuit.

8. The hydraulic control device according to claim 6, characterized in that it also includes:

An electronic pump is connected to the oil suction branch and the low-pressure oil circuit respectively.

9. The hydraulic control device according to claim 6, characterized in that it further comprises:

a bypass valve, wherein the oil inlet of the bypass valve is connected to the low-pressure oil circuit, and the oil outlet of the bypass valve is connected to the second branch circuit; and/or

A flow valve, wherein the oil inlet of the flow valve is connected to the liquid supply path, and the oil outlet of the flow valve is suitable for connecting to the drive motor.

10. A hybrid power system, characterized by comprising the hydraulic control device according to any one of claims 1-9.

11 . A vehicle, characterized by comprising the hybrid power system according to claim 10 .