CN220505300U - Integrated intercommunication check valve oil pump and new energy vehicle - Google Patents
Integrated intercommunication check valve oil pump and new energy vehicle Download PDFInfo
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- CN220505300U CN220505300U CN202321945896.1U CN202321945896U CN220505300U CN 220505300 U CN220505300 U CN 220505300U CN 202321945896 U CN202321945896 U CN 202321945896U CN 220505300 U CN220505300 U CN 220505300U
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- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000005461 lubrication Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013386 optimize process Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
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Abstract
The utility model provides an integrated intercommunication one-way valve oil pump, which comprises a pump body and an integrated valve component integrally arranged on one side of the pump body, wherein the integrated valve component comprises a valve shell, and a pressure limiting valve and a reversing valve which are arranged in the valve shell, wherein the pressure limiting valve and the reversing valve are of one-way conduction check valve structures, an oil inlet end of the pressure limiting valve is communicated with an oil outlet end of the reversing valve through a first oil way, an oil inlet end of the reversing valve is communicated with the oil outlet end of the pressure limiting valve through a second oil way, a first oil hole communicated with an oil inlet groove of the pump body is arranged in the first oil way, and a second oil hole communicated with an oil outlet groove of the pump body is arranged in the second oil way. The utility model also provides a new energy vehicle.
Description
Technical Field
The utility model relates to the technical field of new energy sources of automobiles, in particular to an integrated intercommunicating one-way valve oil pump and a new energy source vehicle.
Background
The traditional automatic gearbox realizes reverse gear of the vehicle by changing the output direction of power through a clutch, and the new energy automobile transmits signals to a three-phase motor through an ECU, and the motor is reversed through three-phase reversing so as to reverse the automobile. Therefore, the traditional vehicle does not need to consider the situation of oil pump reverse rotation in the oil pump design, and the reverse rotation valve is needed to be specially designed for adapting an oil pump oil way, in addition, the hydraulic element is damaged due to the limitation of the outlet pressure when the oil pressure is too high, and a pressure limiting valve is needed to be designed at the outlet in order to prevent the hydraulic element from being damaged. The above two cases result in a significant increase in the relatively complex cost of the oil pump structure for the lubrication circuit of the new energy vehicle over that of the conventional vehicle. It can be seen that the existing oil pump device applied to the new energy vehicle is difficult to simultaneously adapt to the requirements of normal running and reversing of the vehicle.
In summary, the oil pump design applied to the new energy vehicle is difficult to adapt to the technical problem of the reversing working condition.
Disclosure of Invention
The technical problem to be solved by the utility model is that the design of the oil pump applied to the new energy vehicle is difficult to adapt to the reversing working condition.
In order to solve the problems, the utility model provides an integrated intercommunicating one-way valve oil pump, which comprises a pump body and an integrated valve assembly integrally arranged on one side of the pump body, wherein the integrated valve assembly comprises a valve shell, and a pressure limiting valve and a reversing valve which are arranged in the valve shell, the pressure limiting valve and the reversing valve are of one-way conduction check valve structures, an oil inlet end of the pressure limiting valve is communicated with an oil outlet end of the reversing valve through a first oil way, an oil inlet end of the reversing valve is communicated with the oil outlet end of the pressure limiting valve through a second oil way, a first oil hole communicated with an oil inlet groove of the pump body is arranged in the first oil way, and a second oil hole communicated with the oil outlet groove of the pump body is arranged in the second oil way.
The oil pump provided by the utility model directly integrates and installs the oil way related to the control valve on the pump body, has simple and effective structure, and can lead the lubrication of the oil pump to discharge oil and simultaneously meet the requirements of forward running and reversing working conditions of the vehicle through the two one-way check valves and the related oil way structural design.
When the vehicle advances and keeps off, the oil pump normally works, the second oil circuit side where the second oil hole is located is the higher high-pressure side of oil pressure, the first oil circuit side is the low-pressure side, when the integral valve assembly integrally reaches a certain speed along with the rotation speed of the pump body, the reversing valve is closed due to the action of pressure difference, the pressure limiting valve is opened, the oil flow direction is from the second oil hole to the second oil circuit, and from the first oil circuit to the first oil hole through the pressure limiting valve, so that the effect of oil leakage is achieved, firstly, the forward lubrication work is fully completed, secondly, the pressure of the integral inlet of the oil pump is improved, the volumetric efficiency of the oil pump is improved, and the oil consumption is reduced.
When the vehicle is reversed, the integrated valve assembly integrally rotates reversely along with the pump body, one side of the second oil way where the second oil hole is located is a low-pressure side with lower oil pressure, and the first oil way is a high-pressure side. When the rotating speed reaches the preset speed, the reversing valve is opened under the action of the pressure difference, the pressure limiting valve is in a closed state, and the oil flow direction is from the first oil hole to the first oil way to the second oil hole through the reversing valve, so that the normal lubrication and cooling effects are ensured by still discharging oil at the oil outlet groove end of the oil pump under the reversing working condition, and internal cavitation and oil-free lubrication are not caused by reversing the integral oil inlet and outlet of the oil pump.
The pressure limiting valve and the reversing valve are integrated on the pump body, so that the damage to components caused by overlarge oil outlet pressure of the oil pump is avoided, meanwhile, the lubrication requirement under the reversing working condition of an automobile is met, the pressure limiting valve and the reversing valve adopt an internal process hole oil way intercommunication mode, the oil inlet and the oil outlet are mutually related, the space design is simplified, the requirement of light-weight design is met, the other redundant oil way control structure is avoided being added on the oil pump, and the technical problem that the oil pump design applied to a new energy vehicle is difficult to adapt to the reversing working condition is effectively solved.
As an optimal scheme, steel ball plugs are arranged and fixed at the oil way end positions of the first oil way and the second oil way. The structure of the optimized process hole of the first oil way and the second oil way is adapted, and the steel ball plug has simple structure and good effect.
As the preferable scheme, the oil outlet ends of the pressure limiting valve and the reversing valve are provided with valve plug structures for loading the valve spring to push the valve ball, and one end of the valve plug structure of the reversing valve, which faces to the valve spring, is provided with an extending jack post structure for limiting the stroke of the valve ball pushed by oil pressure. The design of the reversing valve is optimized, and the valve failure caused by overlarge pressure of the inlet of the oil pump is prevented by limiting the valve ball through the jacking structure.
Preferably, the preset opening pressure range of the pressure limiting valve is 200Kpa-1000Kpa. The design of the opening pressure of the pressure limiting valve is optimized, and the range of oil pressure output by the oil pump is ensured to meet the requirements of lubrication and pipelines.
Preferably, the preset opening pressure range of the reversing valve is 40Kpa to 60Kpa. The design of the preset pressure of the reversing valve is optimized, so that oil discharge lubrication can be started rapidly under the reversing working condition.
As a preferable scheme, the pump body comprises a pump shell, an inner rotor and an outer rotor which are accommodated in the pump shell, and a working oil cavity for absorbing oil and discharging oil is arranged between the inner rotor and the outer rotor. The overall structural design of the oil pump is optimized.
As a preferable scheme, the pump shell is provided with a shaft hole avoiding groove corresponding to the middle shaft of the inner rotor, a communication oil hole is arranged in the shaft hole avoiding groove, and the communication oil hole is communicated with the second oil hole. Self-lubrication of the shaft structure of the pump body is realized.
The utility model also provides a new energy vehicle comprising any one of the above, and the new energy vehicle with the integrated intercommunicating one-way valve oil pump has the corresponding technical effects because the integrated intercommunicating one-way valve oil pump has the technical effects.
Drawings
FIG. 1 is a schematic diagram of a side cross-sectional structure of an integrated intercommunicating one-way valve oil pump provided by the utility model;
fig. 2 is a schematic structural view of the other side of the integrated intercommunicating check valve oil pump of fig. 1.
In fig. 1 and 2, wherein:
1. a pump body; 2. a pressure limiting valve; 3. a reversing valve; 4. a first oil passage; 5. a second oil path; 6. a first oil hole; 7. a second oil hole; 8. a valve plug structure; 9. a valve spring; 10. a valve ball; 11. a top column structure; 12. a steel ball plug; 13. a pump housing; 14. an inner rotor; 15. and (3) an outer rotor.
Detailed Description
The following description of the present utility model will be made clearly and fully, and it is apparent that the embodiments described are some, but not all, of the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, fig. 1 is a schematic diagram of a side section structure of an integrated intercommunicating check valve oil pump according to the present utility model; fig. 2 is a schematic structural view of the other side of the integrated intercommunicating check valve oil pump of fig. 1.
The embodiment provides an integrated intercommunication check valve oil pump, including the pump body 1 and integrated valve subassembly of installing in pump body 1 one side, integrated valve subassembly includes the valve casing and sets up pressure limiting valve 2 and reversing valve 3 in the valve casing, pressure limiting valve 2 and reversing valve 3 all are the check valve structure of unidirectional conduction, the oil feed end of pressure limiting valve 2 communicates the oil outlet end of reversing valve 3 through first oil circuit 4, the oil feed end of reversing valve 3 communicates the oil outlet end of pressure limiting valve 2 through second oil circuit 5, be provided with the first oilhole 6 with the oil feed groove intercommunication of pump body 1 in the first oil circuit 4, be provided with the second oilhole 7 with the oil outlet groove intercommunication of pump body 1 in the second oil circuit 5. It should be noted that the first oil hole 6, the first oil path 4, the second oil path 7, and the second oil path 5 preferably adopt a structural design of a process hole, the first oil hole 6 and the second oil path 7 preferably are cast holes of phi 5, and the first oil path 4 and the second oil path 5 preferably are cast holes of phi 6.
The oil pump provided by the utility model directly integrates and installs the oil way related to the control valve on the pump body, has simple and effective structure, and can lead the lubrication of the oil pump to discharge oil and simultaneously meet the requirements of forward running and reversing working conditions of the vehicle through the two one-way check valves and the related oil way structural design.
When the vehicle advances and keeps off, the oil pump normally works, the second oil circuit side where the second oil hole is located is the higher high-pressure side of oil pressure, the first oil circuit side is the low-pressure side, when the integral valve assembly integrally reaches a certain speed along with the rotation speed of the pump body, the reversing valve is closed due to the action of pressure difference, the pressure limiting valve is opened, the oil flow direction is from the second oil hole to the second oil circuit, and from the first oil circuit to the first oil hole through the pressure limiting valve, so that the effect of oil leakage is achieved, firstly, the forward lubrication work is fully completed, secondly, the pressure of the integral inlet of the oil pump is improved, the volumetric efficiency of the oil pump is improved, and the oil consumption is reduced.
When the vehicle is reversed, the integrated valve assembly integrally rotates reversely along with the pump body, one side of the second oil way where the second oil hole is located is a low-pressure side with lower oil pressure, and the first oil way is a high-pressure side. When the rotating speed reaches the preset speed, the reversing valve is opened under the action of the pressure difference, the pressure limiting valve is in a closed state, and the oil flow direction is from the first oil hole to the first oil way to the second oil hole through the reversing valve, so that the normal lubrication and cooling effects are ensured by still discharging oil at the oil outlet groove end of the oil pump under the reversing working condition, and internal cavitation and oil-free lubrication are not caused by reversing the integral oil inlet and outlet of the oil pump.
The pressure limiting valve and the reversing valve are integrated on the pump body, so that the damage to components caused by overlarge oil outlet pressure of the oil pump is avoided, meanwhile, the lubrication requirement under the reversing working condition of an automobile is met, the pressure limiting valve and the reversing valve adopt an internal process hole oil way intercommunication mode, the oil inlet and the oil outlet are mutually related, the space design is simplified, the requirement of light-weight design is met, the other redundant oil way control structure is avoided being added on the oil pump, and the technical problem that the oil pump design applied to a new energy vehicle is difficult to adapt to the reversing working condition is effectively solved.
In the technical scheme provided by the embodiment, steel ball plugs 12 are respectively arranged and fixed at the oil circuit end positions of the first oil circuit 4 and the second oil circuit 5. Because the first oil way and the second oil way preferably adopt the scheme of directly casting the process hole in the shell, the structure of the optimized process hole of the first oil way and the second oil way is adapted, and the structure of the steel ball plug is simple and has good effect.
In the technical scheme provided by the embodiment, the oil outlet ends of the pressure limiting valve 2 and the reversing valve 3 are provided with valve plug structures 8 for loading a valve spring 9 to push a valve ball 10, and one end of the valve plug structure 8 of the reversing valve 3, which faces the valve spring 9, is provided with an extending jacking structure 11 for limiting the stroke of the valve ball 10 pushed by oil pressure.
The design has optimized the design of reversing valve, through the spacing valve ball of jack-prop structure, prevent that oil pump entry pressure from being too big from causing the valve to become invalid, in particular for guaranteeing when reversing the operating mode, oil pump in time oil extraction lubrication, therefore the valve spring pretightning force of reversing valve position is less relatively, can avoid causing the valve ball to drop owing to less relatively spring pretightning force through jack-prop structure design, and cause reversing valve to become invalid, corresponding also can prevent that the oil inlet pressure that the reversal rotational speed is too fast to cause is too big, causes the valve ball to drop.
In the technical scheme provided by the embodiment, the preset opening pressure range of the pressure limiting valve 2 is 200Kpa-1000Kpa. The structure of the pressure limiting valve is mainly used for achieving the effect of limiting pressure, the oil discharging pressure of the oil outlet end is controlled, the hydraulic element is damaged due to overlarge oil pressure, and the limiting range of the opening force of the pressure limiting valve in the embodiment is used for meeting the limitation of the oil pressure in order to prevent the hydraulic element from being damaged.
In the technical solution provided in this embodiment, the preset opening pressure range of the reversing valve 3 is 40Kpa to 60Kpa. The design of the preset pressure of the reversing valve is optimized, the preset opening pressure of the reversing valve, namely the valve pretightening force is relatively small, so that the pressure of pushing up the valve ball of the reversing valve can be rapidly formed under the reversing working condition, the oil discharge output is formed, and the oil discharge lubrication can be rapidly started.
In the technical scheme provided by the embodiment, the pump body 1 comprises a pump shell 13, an inner rotor 14 and an outer rotor 15 which are accommodated in the pump shell 13, and a working oil cavity for absorbing oil and discharging oil is arranged between the inner rotor 14 and the outer rotor 15. The overall structural design of the oil pump is optimized.
In the technical scheme provided by the embodiment, the pump shell 13 is provided with a shaft hole avoiding groove corresponding to the position of the middle shaft of the inner rotor 14, the shaft hole avoiding groove is internally provided with a communication oil hole, and the communication oil hole is communicated with the second oil hole 7, so that self lubrication of the shaft structure of the pump body is realized.
The utility model also provides a new energy vehicle comprising any one of the above, and the new energy vehicle with the integrated intercommunicating one-way valve oil pump has the corresponding technical effects because the integrated intercommunicating one-way valve oil pump has the technical effects.
Although the present disclosure is disclosed above, the scope of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.
Claims (8)
1. The utility model provides an integrated intercommunication check valve oil pump, its characterized in that, including pump body (1) and integrated install in the integrated valve subassembly of pump body (1) one side, integrated valve subassembly include the valve casing and set up in pressure limiting valve (2) and reversing valve (3) in the valve casing, pressure limiting valve (2) and reversing valve (3) all are the check valve structure that one-way switched on, the oil feed end of pressure limiting valve (2) communicates through first oil circuit (4) the oil outlet end of reversing valve (3), the oil feed end of reversing valve (3) communicates through second oil circuit (5) the oil outlet end of pressure limiting valve (2), be provided with in first oil circuit (4) with be provided with in second oil circuit (5) second oilhole (7) of the oil outlet groove intercommunication of pump body (1).
2. The integrated intercommunication one-way valve oil pump according to claim 1, wherein the oil way end positions of the first oil way (4) and the second oil way (5) are respectively provided with a steel ball plug (12).
3. The integrated intercommunication check valve oil pump according to claim 2, wherein the oil outlet ends of the pressure limiting valve (2) and the reversing valve (3) are provided with valve plug structures (8) for loading valve springs (9) to push valve balls (10), and one end of the valve plug structures (8) of the reversing valve (3) facing the valve springs (9) is provided with protruding jack post structures (11) for limiting the stroke of the valve balls (10) pushed by oil pressure.
4. An integrated intercommunicating one-way valve oil pump according to claim 3, characterized in that the preset opening pressure range of the pressure limiting valve (2) is 200Kpa-1000Kpa.
5. The integrated inter-working check valve oil pump according to claim 4, characterized in that the preset opening pressure range of the reversing valve (3) is 40Kpa-60Kpa.
6. The integrated intercommunicating one-way valve oil pump according to any one of claims 1 to 5, wherein the pump body (1) comprises a pump housing (13) and an inner rotor (14) and an outer rotor (15) accommodated in the pump housing (13), and a working oil chamber for sucking and discharging oil is provided between the inner rotor (14) and the outer rotor (15).
7. The integrated intercommunication check valve oil pump according to claim 6, wherein an axle hole avoiding groove is formed in the pump shell (13) corresponding to the position of the middle axle of the inner rotor (14), and a communication oil hole is formed in the axle hole avoiding groove and is communicated with the second oil hole (7).
8. A new energy vehicle comprising an integrated intercommunicating one-way valve oil pump as defined in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321945896.1U CN220505300U (en) | 2023-07-24 | 2023-07-24 | Integrated intercommunication check valve oil pump and new energy vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321945896.1U CN220505300U (en) | 2023-07-24 | 2023-07-24 | Integrated intercommunication check valve oil pump and new energy vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220505300U true CN220505300U (en) | 2024-02-20 |
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ID=89869304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321945896.1U Active CN220505300U (en) | 2023-07-24 | 2023-07-24 | Integrated intercommunication check valve oil pump and new energy vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220505300U (en) |
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2023
- 2023-07-24 CN CN202321945896.1U patent/CN220505300U/en active Active
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