CN215409486U - Hydraulic system and vehicle - Google Patents
Hydraulic system and vehicle Download PDFInfo
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- CN215409486U CN215409486U CN202120943405.4U CN202120943405U CN215409486U CN 215409486 U CN215409486 U CN 215409486U CN 202120943405 U CN202120943405 U CN 202120943405U CN 215409486 U CN215409486 U CN 215409486U
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Abstract
The disclosure relates to the technical field of hydraulic systems, in particular to a hydraulic system and a vehicle. The hydraulic system comprises an electronic pump, an electromagnetic valve, a shell and a valve core, wherein a cavity for containing the valve core, an oil inlet oil way, a main oil way, a lubricating oil way for supplying oil to the clutch and an oil supply oil way connected with the electronic pump are formed in the shell, the oil inlet oil way is communicated with the cavity, and the electromagnetic valve controls hydraulic oil in the oil inlet oil way to enter the cavity. When the electronic pump is used, the electronic pump is started, hydraulic oil provided by the electronic pump can provide sufficient hydraulic oil for the main oil way through the oil supply oil way, then the hydraulic oil is supplied to the oil inlet oil way through the driving electromagnetic valve, then the hydraulic oil flows into the cavity, the valve core is pushed to move under the action of the oil pressure, the oil supply oil way is communicated with the lubricating oil way, the hydraulic oil in the electronic pump is conveyed to the lubricating oil way, the hydraulic oil in the lubricating oil way is conveyed to the clutch for lubricating and cooling the clutch, and the clutch can be better lubricated and cooled.
Description
Technical Field
The disclosure relates to the technical field of hydraulic systems, in particular to a hydraulic system and a vehicle.
Background
Currently, in a hydraulic system of an automatic transmission of a vehicle, a high-power electronic pump (generally 400w or more) is required to pump a sufficient amount of hydraulic oil into a main oil passage before a mechanical pump is started. And there is little need for oil pressure in the main oil circuit before the mechanical pump is started, the main task of the powerful electronic pump is to pump a sufficient amount of hydraulic oil to the main oil circuit at this time. Then the mechanical pump and the electronic pump simultaneously supply oil to the main oil way, and oil overflowing from the main oil way flows to the clutch to lubricate and cool the clutch, but the cooling and lubricating effects are poor.
SUMMERY OF THE UTILITY MODEL
To solve the technical problem or at least partially solve the technical problem, the present disclosure provides a hydraulic system and a vehicle.
The present disclosure provides a hydraulic system comprising: the electromagnetic valve comprises an electronic pump, an electromagnetic valve, a shell and a valve core, wherein a cavity for accommodating the valve core is formed in the shell, an elastic piece is arranged in the cavity, and the elastic piece is connected with the valve body; the shell is also provided with an oil inlet oil way, a main oil way, a lubricating oil way for supplying oil to the clutch and an oil supply oil way connected with the electronic pump;
the oil inlet oil way is communicated with the cavity, and the electromagnetic valve controls hydraulic oil in the oil inlet oil way to enter the cavity; when the hydraulic oil in the oil inlet oil way enters the cavity, the valve core moves towards the elastic piece under the pressure of the hydraulic oil, so that the oil supply oil way is communicated with the lubricating oil way; when the hydraulic oil in the oil inlet oil way flows out of the cavity, the elastic piece is restored to the initial state, and the valve core is pushed to move towards the opposite direction of the elastic piece, so that the oil supply oil way is communicated with the main oil way.
Optionally, the valve element includes a first connection portion, a second connection portion and a third connection portion, and the second connection portion is located between the first connection portion and the third connection portion; the cavity comprises a first cavity, a second cavity and a third cavity, the first cavity is communicated with the main oil way, the second cavity is communicated with the oil supply way, and the third cavity is communicated with the lubricating oil way;
when the second connecting part is positioned in the first cavity and the second cavity, the oil supply oil way is communicated with the main oil way;
when the second connecting portion is located in the second cavity and the third cavity, the oil supply oil path is communicated with the lubricating oil path.
Optionally, the size of the first connection portion is the same as the size of the third connection portion, and both the size of the first connection portion and the size of the third connection portion are larger than the size of the second connection portion.
Optionally, the second cavity has a first sidewall and a second sidewall, the first sidewall has a first through hole, the second sidewall has a second through hole, and the first through hole and the second through hole have the same aperture;
when the second connecting part is positioned in the first cavity and the second cavity, the third connecting part plugs the second through hole;
when the second connecting portion is located in the second cavity and the third cavity, the first connecting portion plugs the first through hole.
Optionally, the first connecting portion and the third connecting portion include a cylinder, and the diameters of the first through hole and the second through hole are the same as the diameter of the cylinder.
Optionally, the third connecting portion is connected to the elastic member.
Optionally, the cavity further includes a fourth cavity, and the fourth cavity is communicated with the oil inlet passage;
at least part of the first connecting part is positioned in the fourth cavity.
Optionally, the oil inlet path includes a first oil path and a second oil path, the first oil path is used for the inflow of the hydraulic oil, and the second oil path is communicated with the fourth cavity;
the solenoid valve is arranged between the first oil path and the second oil path, and the first oil path and the second oil path are cut off or communicated through the solenoid valve.
Optionally, a check valve is arranged between the electronic pump and the oil supply path.
The present disclosure also provides a vehicle comprising: the hydraulic system is provided.
Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:
the hydraulic system provided by the embodiment of the disclosure comprises an electronic pump, an electromagnetic valve, a shell and a valve core, wherein a cavity for accommodating the valve core is formed in the shell, an elastic part is arranged in the cavity and connected with a valve body, and an oil inlet oil way, a main oil way, a lubricating oil way for supplying oil to a clutch and an oil supply oil way connected with the electronic pump are further formed in the shell; the oil inlet oil way is communicated with the cavity, and the electromagnetic valve controls hydraulic oil in the oil inlet oil way to enter the cavity. When the hydraulic oil in the oil inlet oil way enters the cavity, the valve core moves towards the elastic piece under the pressure of the hydraulic oil, so that the oil supply oil way is communicated with the lubricating oil way, the electronic pump supplies oil to the oil supply oil way, and the oil supply oil way supplies oil to the lubricating oil way. When the hydraulic oil in the oil inlet oil way flows out of the cavity, the elastic piece is restored to the initial state, and the valve core is pushed to move in the opposite direction of the elastic piece, so that the oil supply oil way is communicated with the main oil way, the electronic pump supplies oil to the oil supply oil way, and the oil supply oil way supplies oil to the main oil way. When the electronic pump is used, the electronic pump is started, the electronic pump can provide sufficient hydraulic oil for the main oil way through the oil supply oil way, then the hydraulic oil is supplied to the oil inlet oil way through the driving electromagnetic valve, then the hydraulic oil flows into the cavity, the valve core is pushed to move under the action of the oil pressure, the oil supply oil way is communicated with the lubricating oil way, the hydraulic oil in the electronic pump is conveyed to the lubricating oil way, the hydraulic oil in the lubricating oil way is conveyed to the clutch and used for lubricating and cooling the clutch, the flow of the hydraulic oil flowing to the clutch is sufficient at the moment, and the clutch can be better lubricated and cooled.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a hydraulic system according to an embodiment of the present disclosure;
FIG. 2 is a top view of a hydraulic system according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a first perspective internal structure of a hydraulic system according to an embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a second perspective internal structure of the hydraulic system according to the embodiment of the present disclosure;
FIG. 5 is a partial enlarged view of portion A of FIG. 4;
fig. 6 is a schematic structural diagram of a housing of a hydraulic system according to an embodiment of the disclosure.
Wherein the content of the first and second substances,
1. an electronic pump; 2. an electromagnetic valve; 3. a housing; 31. a cavity; 311. an elastic member; 312. a first cavity; 313. a second cavity; 313a, a first side wall; 313b, a first via hole; 314. a third cavity; 315. a fourth cavity; 32. an oil inlet path; 321. a first oil passage; 322. a second oil passage; 33. a main oil path; 34. a lubrication oil path; 35. an oil supply path; 4. a valve core; 41. a first connection portion; 42. a second connecting portion; 43. a third connecting portion; 5. a one-way valve; 6. a plate body.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.
In the prior art, in a hydraulic system of an automatic transmission of a vehicle, an electronic pump is required to firstly feed sufficient hydraulic oil into a main oil passage, so that a clutch between an engine and the transmission is combined, the engine is rotated, then a mechanical pump is driven to work, and after the mechanical pump is started, the electronic pump only plays a role of auxiliary oil supply, but because the hydraulic oil in the mechanical pump and the hydraulic oil in the electronic pump both flow to the main oil passage, in order to stabilize the oil pressure of the main oil passage, the oil pressure provided by the electronic pump is also large, so that the power required by the electronic pump is also large, the power requirement on the electronic pump is high, and the electronic pump is usually an electronic pump with the power of more than 400 w. Meanwhile, the hydraulic oil overflowing from the main oil way flows to the clutch to cool and lubricate the clutch, but the overflowing hydraulic oil is small in amount, so that the lubricating and cooling effects are poor.
Based on this, in order to solve the technical problem, the embodiments of the present disclosure provide a hydraulic system, which can better lubricate and cool a clutch.
Referring to fig. 1 to 6, an embodiment of the present disclosure provides a hydraulic system, including an electronic pump 1, an electromagnetic valve 2, a housing 3, and a valve core 4, where a cavity 31 for accommodating the valve core 4 is formed in the housing 3, an elastic part 311 is disposed in the cavity 31, the elastic part 311 is connected to a valve body, and the housing 3 is further provided with an oil inlet path 32, a main oil path 33, a lubricating oil path 34 for supplying oil to a clutch, and an oil supply path 35 connected to the electronic pump 1; the oil inlet path 32 is communicated with the cavity 31, and the electromagnetic valve 2 controls hydraulic oil in the oil inlet path 32 to enter the cavity 31. When the hydraulic oil in the oil inlet path 32 enters the cavity 31, the valve core 4 moves toward the elastic member 311 under the pressure of the hydraulic oil, so that the oil supply path 35 is communicated with the lubricating oil path 34, the electronic pump 1 supplies oil to the oil supply path 35, and the oil supply path 35 supplies oil to the lubricating oil path 34. When the hydraulic oil in the oil inlet path 32 flows out of the cavity 31, the elastic element 311 returns to the initial state, and pushes the valve core 4 to move in the opposite direction of the elastic element 311, so that the oil supply path 35 is communicated with the main oil path 33, and therefore the electronic pump 1 supplies oil to the oil supply path 35, and the oil supply path 35 supplies oil to the main oil path 33. When the electronic pump is used, the electronic pump 1 is started, the electronic pump 1 can provide sufficient hydraulic oil for the main oil way 33 through the oil supply oil way 35, then the hydraulic oil is supplied to the oil inlet oil way 32 through the driving electromagnetic valve 2, then the hydraulic oil flows into the cavity 31, the valve core 4 is pushed to move under the action of the oil pressure, the oil supply oil way 35 is communicated with the lubricating oil way 34, the hydraulic oil in the electronic pump 1 is conveyed to the lubricating oil way 34, the hydraulic oil in the lubricating oil way 34 is conveyed to the clutch and used for lubricating and cooling the clutch, the flow of the hydraulic oil flowing to the clutch is sufficient at the moment, the clutch can be better lubricated and cooled, the clutch can be strongly cooled, and the electronic pump has the advantages of good lubricating and cooling effects. Meanwhile, after the electronic pump 1 supplies a sufficient amount of hydraulic oil to the main oil passage 33, the mechanical pump starts to operate, and at this time, the mechanical pump only needs to supply the main oil passage 33. The electronic pump 1 does not need to be responsible for maintaining the oil pressure in the main oil passage 33 stable when the mechanical pump is pressurized, so that the electronic pump 1 can adopt a low-power electronic pump 1 with the power of 400w or less, for example 200w, which not only contributes to reducing the power consumption, but also contributes to reducing the operation cost of a hydraulic system.
The electronic pump 1 firstly feeds sufficient hydraulic oil into the main oil path 33 to enable the clutch between the engine and the transmission to be combined and the engine to rotate, then the mechanical pump is driven to work, the electronic pump 1 is not required to supply oil after the mechanical pump is started, the electronic pump 1 can supply oil into the oil supply path 35, the oil supply path 35 supplies oil into the lubricating oil path 34, and the hydraulic oil in the lubricating oil path 34 can be conveyed to the clutch for lubricating and cooling the clutch. At this time, the flow rate of the hydraulic oil is not changed, but the pressure is lower, and the power of the required electronic pump 1 is also lower, so that the electronic pump 1 can adopt the low-power electronic pump 1, the type selection of the electronic pump 1 is easy, and the cost is saved.
In some embodiments, the spool 4 includes a first connection portion 41, a second connection portion 42, and a third connection portion 43, the second connection portion 42 being located between the first connection portion 41 and the third connection portion 43; the cavity 31 includes a first cavity 312, a second cavity 313 and a third cavity 314, the first cavity 312 is communicated with the main oil path 33, the second cavity 313 is communicated with the oil supply path 35, and the third cavity 314 is communicated with the lubricating oil path 34; when the second connecting portion 42 is located in the first cavity 312 and the second cavity 313, the lubricating oil path 34 is blocked, the oil supply path 35 is communicated with the main oil path 33, and the electronic pump 1 supplies sufficient hydraulic oil to the main oil path 33 through the oil supply path 35, so that the engine and the transmission intermediate clutch are combined, the engine is rotated, the mechanical pump is driven to work, and the electronic pump 1 is not required to supply oil after being started. Then the valve core 4 is pushed to move, when the second connecting part 42 is positioned in the second cavity 313 and the third cavity 314, the main oil path 33 is blocked, the oil supply path 35 is communicated with the lubricating oil path 34, the electronic pump 1 supplies hydraulic oil to the lubricating oil path 34 through the oil supply path 35, and the hydraulic oil in the lubricating oil path 34 can be conveyed to the clutch for lubricating and cooling the clutch.
The size of the first connection portion 41 is the same as that of the third connection portion 43, the size of the first connection portion 41 and that of the third connection portion 43 are both larger than that of the second connection portion 42, and the second connection portion 42 is small, so that the oil passages can be switched by the movement of the second connection portion 42 to supply oil.
In some embodiments, the second cavity 313 has a first sidewall 313a and a second sidewall, the first sidewall 313a has a first through hole 313b, the second sidewall has a second through hole, and the first through hole 313b and the second through hole have the same aperture. When the second connection portion 42 is located in the first cavity 312 and the second cavity 313, the third connection portion 43 closes the second through hole, and a gap exists between the second connection portion 42 and the first through hole 313b, so that the first cavity 312 and the second cavity 313 can be communicated, and the oil supply passage 35 and the main oil passage 33 can be communicated. When the second connecting portion 42 is located in the second cavity 313 and the third cavity 314, the first connecting portion 41 blocks the first through hole 313b, and a gap exists between the second connecting portion 42 and the second through hole, so that the second cavity 313 and the third cavity 314 can be communicated, and the oil supply path 35 and the lubricating oil path 34 can be communicated.
Wherein the first connection portion 41 and the third connection portion 43 comprise cylinders, which are arranged to facilitate the movement of the valve element 4. The first through hole 313b and the second through hole have the same diameter as the cylinder, which facilitates the cylinder to seal the first through hole 313b and the second through hole.
In some embodiments, the cavity 31 further includes a fourth cavity 315, the fourth cavity 315 is communicated with the oil inlet path 32, and at least a portion of the first connection portion 41 is located in the fourth cavity 315. When the electronic pump 1 is not required to supply oil to the main oil path 33, oil is supplied to the oil inlet path 32, the electromagnetic valve 2 is started, hydraulic oil in the oil inlet path 32 enters the fourth cavity 315, and under the action of the oil pressure, the first connecting part 41 is pushed to move towards the elastic part 311, so that the second cavity 313 is communicated with the third cavity 314, and the oil supply path 35 is communicated with the lubricating oil path 34.
The first connecting portion 41 penetrates through the through hole on the side wall of the fourth cavity 315, and the diameter of the first connecting portion 41 is the same as the aperture of the through hole, so that the through hole is conveniently plugged.
In some embodiments, the third connecting portion 43 is connected to the elastic member 311, when the oil pressure pushes the valve core 4 to move, the elastic member 311 is pressed by the third connecting portion 43, after the lubrication oil path 34 completes lubrication and cooling of the clutch, the solenoid valve 2 is de-energized, the hydraulic oil in the fourth cavity 315 flows back to the solenoid valve 2 through the oil inlet path 32 and is discharged through the oil outlet of the solenoid valve 2, and at this time, the valve core 4 can return to the initial position under the action of the elastic member 311, and the first cavity 312 and the second cavity 313 are connected.
Wherein the elastic member 311 is always in a compressed state.
In addition, the elastic member 311 may be a spring.
In some embodiments, the oil-intake oil passage 32 includes a first oil passage 321 and a second oil passage 322, the first oil passage 321 being used for inflow of hydraulic oil, which enters through an oil inlet of the first oil passage 321, where the hydraulic oil is different from the hydraulic oil of the electronic pump 1. The second oil passage 322 communicates with the fourth chamber 315, and supplies oil to the fourth chamber 315. The solenoid valve 2 is provided between the first oil passage 321 and the second oil passage 322, the first oil passage 321 and the second oil passage 322 are disconnected or communicated by the solenoid valve 2, and the solenoid valve 2 is the existing solenoid valve 2 and mainly plays a role of a switch.
In some embodiments, the check valve 5 is provided between the electronic pump 1 and the oil supply passage 35, and therefore the electronic pump 1 can supply oil into the oil supply passage 35.
In some embodiments, the hydraulic system further includes a plate body 6, and the plate body 6 is connected with the housing 3 to assemble the whole hydraulic system.
The disclosed embodiment also provides a vehicle which is characterized by comprising a hydraulic system. Through hydraulic system's setting, hydraulic oil in the lubricated oil circuit 34 is carried to the clutch for lubricate and cool down the clutch, the hydraulic oil flow that flows to the clutch this moment is sufficient, can be to the better lubrication of clutch and cooling down, can carry out the clutch and cool down by force, have lubricated and effectual advantage of cooling down, but also can adopt the miniwatt electronic pump.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A hydraulic system, comprising: the electromagnetic valve comprises an electronic pump (1), an electromagnetic valve (2), a shell (3) and a valve core (4), wherein a cavity (31) used for accommodating the valve core (4) is formed in the shell (3), an elastic piece (311) is arranged in the cavity (31), and the elastic piece (311) is connected with a valve body; an oil inlet oil way (32), a main oil way (33), a lubricating oil way (34) for supplying oil to the clutch and an oil supply oil way (35) connected with the electronic pump (1) are further formed in the shell (3);
the oil inlet oil way (32) is communicated with the cavity (31), and the electromagnetic valve (2) controls hydraulic oil in the oil inlet oil way (32) to enter the cavity (31); when the hydraulic oil in the oil inlet oil path (32) enters the cavity (31), the valve core (4) moves towards the elastic part (311) under the pressure of the hydraulic oil, so that the oil supply path (35) is communicated with the lubricating oil path (34); when the hydraulic oil in the oil inlet oil way (32) flows out of the cavity (31), the elastic part (311) is restored to the initial state, and the valve core (4) is pushed to move in the direction opposite to the elastic part (311), so that the oil supply oil way (35) is communicated with the main oil way (33).
2. A hydraulic system according to claim 1, characterized in that the spool (4) comprises a first connection portion (41), a second connection portion (42) and a third connection portion (43), the second connection portion (42) being located between the first connection portion (41) and the third connection portion (43); the cavity (31) comprises a first cavity (312), a second cavity (313) and a third cavity (314), the first cavity (312) is communicated with the main oil path (33), the second cavity (313) is communicated with the oil supply path (35), and the third cavity (314) is communicated with the lubricating oil path (34);
when the second connecting part (42) is positioned in the first cavity (312) and the second cavity (313), the oil supply oil path (35) is communicated with the main oil path (33);
when the second connecting portion (42) is located in the second cavity (313) and the third cavity (314), the oil supply path (35) and the lubricating oil path (34) are communicated.
3. A hydraulic system according to claim 2, characterized in that the dimensions of the first connection portion (41) and the third connection portion (43) are the same, the dimensions of the first connection portion (41) and the third connection portion (43) each being larger than the dimensions of the second connection portion (42).
4. The hydraulic system according to claim 3, wherein the second cavity (313) has a first side wall (313a) and a second side wall, the first side wall (313a) having a first through hole (313b) and the second side wall having a second through hole, the first through hole (313b) and the second through hole having the same aperture;
when the second connecting part (42) is positioned in the first cavity (312) and the second cavity (313), the third connecting part (43) seals the second through hole;
when the second connecting part (42) is positioned in the second cavity (313) and the third cavity (314), the first connecting part (41) seals the first through hole (313 b).
5. A hydraulic system according to claim 4, characterized in that the first and third connections (41, 43) comprise a cylinder, the first and second through holes (313b ) having the same diameter as the cylinder.
6. A hydraulic system according to claim 2, characterized in that the third connection portion (43) is connected with the spring (311).
7. The hydraulic system of claim 2, wherein the cavity (31) further comprises a fourth cavity (315), the fourth cavity (315) being in communication with the oil inlet passage (32);
at least part of the first connection (41) is located in the fourth cavity (315).
8. The hydraulic system according to claim 7, wherein the oil inlet passage (32) includes a first oil passage (321) and a second oil passage (322), the first oil passage (321) is used for inflow of the hydraulic oil, and the second oil passage (322) is communicated with the fourth cavity (315);
the solenoid valve (2) is provided between the first oil passage (321) and the second oil passage (322), and the first oil passage (321) and the second oil passage (322) are shut off or communicated by the solenoid valve (2).
9. Hydraulic system according to claim 1, characterised in that a non-return valve (5) is arranged between the electronic pump (1) and the oil supply channel (35).
10. A vehicle, characterized by comprising: a hydraulic system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120943405.4U CN215409486U (en) | 2021-04-30 | 2021-04-30 | Hydraulic system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120943405.4U CN215409486U (en) | 2021-04-30 | 2021-04-30 | Hydraulic system and vehicle |
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| Publication Number | Publication Date |
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| CN215409486U true CN215409486U (en) | 2022-01-04 |
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| CN202120943405.4U Active CN215409486U (en) | 2021-04-30 | 2021-04-30 | Hydraulic system and vehicle |
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| CN (1) | CN215409486U (en) |
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- 2021-04-30 CN CN202120943405.4U patent/CN215409486U/en active Active
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