CN117108789A

CN117108789A - Electronic water valve and thermal management system and vehicle thereof

Info

Publication number: CN117108789A
Application number: CN202210530862.XA
Authority: CN
Inventors: 许鑫; 杨茂; 苏健; 曾庆军
Original assignee: Guangdong Welling Motor Manufacturing Co Ltd
Current assignee: Guangdong Welling Motor Manufacturing Co Ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2023-11-24

Abstract

The invention discloses an electronic water valve, a thermal management system thereof and a vehicle, wherein the electronic water valve comprises a valve shell and a valve core, the valve core is rotatably arranged on the valve shell, a through chamber is arranged on a shaft core of the valve core, the valve core comprises an upper layer structure, a middle layer structure and a lower layer structure, the middle layer structure is provided with a first open groove and a first through hole, the upper layer structure is provided with a second open groove, a second through hole and a third through hole, and the second open groove is communicated with the first open groove; the lower layer structure is provided with a third open groove, a fourth port and a fifth port, and the third open groove is communicated with the second open groove; the first port, the second port, the fourth port, the third port and the fifth port are all communicated with the through chamber. The electronic water valve has rich modes of a circulation loop, is compatible with one-to-many continuous switching functions, and is suitable for a thermal management system with higher integration level.

Description

Electronic water valve and thermal management system and vehicle thereof

Technical Field

The invention relates to the technical field of new energy automobile heat management systems, in particular to an electronic water valve, a heat management system thereof and a vehicle.

Background

The new energy automobile thermal management system comprises a battery thermal management system and a motor electric control thermal management system. The temperature has an important influence on the efficiency of battery working and discharging, the depth of discharge of the battery is shallow at low temperature, and the service life of the battery is shortened due to long-time working at low temperature, so that in order to ensure effective charge and discharge of the battery pack, the battery pack needs to be heated or cooled by arranging a thermal management system; the motor can generate great heat in the running process of the motor to raise the temperature of the motor, influence the output power of the motor, reduce the power and seriously lead to stopping, so that the motor needs to be cooled. While in other operations of the thermal management system of the new energy automobile, some components may also require heating.

The traditional control system for battery thermal management and motor thermal management of the new energy automobile is characterized in that a plurality of electronic water valves are used for respectively controlling each medium circulation channel in the thermal management system, and each channel is connected in series or in parallel, so that the thermal management system realizes independent circulation loops or adjusts to form a circulation loop. Traditional thermal management systems involve multiple electronic water valves, which are complex in structure and expensive in cost, and medium circulation channels are complex.

Disclosure of Invention

The invention mainly aims to provide an electronic water valve, which aims to switch the circulation modes of various flow paths.

According to the technical scheme, the electronic water valve comprises:

the valve housing is provided with a first input port, a second input port, a first output port, a second output port, a third output port and a fourth output port;

the valve core comprises an upper layer structure, a middle layer structure and a lower layer structure, wherein the middle layer structure is provided with a first open groove and a first through hole, the upper layer structure is provided with a second open groove, a second through hole and a third through hole, and the second open groove is communicated with the first open groove; the lower layer structure is provided with a third open groove, a fourth port and a fifth port, and the third open groove is communicated with the first open groove; the first port, the second port, the fourth port, the third port and the fifth port are all communicated with the through chamber;

the valve core is rotatably arranged on the valve shell, the first input port is communicated with the first open groove, and the second input port is communicated with the first through hole;

When the fourth output port is communicated with the second open groove, the second output port is communicated with the second port; or the first output port is communicated with the fourth port;

when the first output port is communicated with the third open groove, the fourth output port is communicated with the third port; or the third output port is communicated with the fifth port;

and when the second output port is communicated with the second open groove, the third output port is communicated with the fifth through port.

In one embodiment, the valve core is in a drum shape and comprises a vertical plate, a first rotary table, a first baffle, a second baffle and a second rotary table which are sequentially connected with the vertical plate from top to bottom,

the first turntable and the first baffle form an upper structure, the upper structure is vertically provided with a plurality of first baffle plates and coamings connected with the first baffle plates, the coamings are provided with first openings, second openings and third openings, two adjacent first baffle plates, vertical plates and the first openings form second open grooves, two adjacent first baffle plates and the second openings form second openings, and two adjacent first baffle plates and the third openings form third openings;

The first baffle plate and the second baffle plate form a middle layer structure, two second baffle plates are vertically arranged on the middle layer structure, and the two second baffle plates separate the first open groove from the first through hole;

the second baffle plate and the second turntable form a lower layer structure, a plurality of third baffle plates and coaming plates connected with the third baffle plates are vertically arranged on the lower layer structure, a fourth opening, a fifth opening and a sixth opening are formed in the coaming plates, two adjacent third baffle plates, vertical plates and the fourth opening form a third open groove, two adjacent third baffle plates and the fifth opening form a fourth opening, and two adjacent first baffle plates and the sixth opening form a fifth opening.

In an embodiment, the central angle of the first through hole is larger than the central angle of the first open groove, and the first through hole is provided with a reinforcing rib.

In an embodiment, a central angle of the second open groove is larger than that of the third open groove and smaller than that of the first open groove; the two ends of the projection of the first open slot are out of the two ends of the projection of the second open slot, one end of the projection of the third open slot falls into the projection of the first open slot, and the other end of the projection of the third open slot is out of the projection of the first open slot.

In an embodiment, the third port is adjacent to the second open slot, and the second port is spaced from the third port and the second open slot, respectively; and a space is reserved between the fourth port and the fifth port and is adjacent to the third open groove.

In an embodiment, central angles of the second port, the third port and the fifth port are equal, and a central angle of the fourth port is larger than the second port and smaller than a central angle of the first port; the second port, the fourth port and the fifth port are positioned at the two projection ends of the first port, one projection end of the third port falls into the projection of the first port, and the other projection end of the third port is positioned outside the projection of the first port.

In an embodiment, the first turntable and the second turntable are respectively provided with ribs.

In an embodiment, the electronic water valve further comprises a sealing gasket, the sealing gasket is installed between the valve shell and the valve core, the sealing gasket is provided with through holes corresponding to the first input port, the second input port, the first output port, the second output port, the third output port and the fourth output port one by one, and sealing ribs are arranged around the through holes.

In one embodiment, the sealing ribs are serrated.

In one embodiment, the gasket includes an elastically deformable layer and a low friction layer, the elastically deformable layer being disposed at an outer periphery of the low friction layer.

In an embodiment, the electronic water valve further comprises a valve cover and a driving device, wherein the valve cover is installed above the valve housing, and the valve cover is provided with a mounting hole for connecting the driving device.

The invention also provides a thermal management system comprising an electronic water valve comprising:

The invention also provides a vehicle comprising a thermal management system.

According to the technical scheme, the valve casing is provided with the two input ports and the four output ports, the valve core is provided with the plurality of open grooves and the through holes which can be communicated, and the valve core is rotatably arranged on the valve casing, so that the input ports are communicated with different output ports through different open grooves or through holes, and different circulation modes can be switched. The electronic water valve disclosed by the technical scheme of the invention has the advantages that the mode of a circulation loop is rich, the electronic water valve is compatible with a one-to-many continuous switching function, the electronic water valve is suitable for a thermal management system with higher integration level, the internal leakage is small, the sealing performance is good, and the required motor torque is small.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of an electronic water valve;

fig. 2 is a schematic perspective view of a valve housing;

FIG. 3 is a schematic perspective view of a valve core;

FIG. 4 is a schematic view of a first flow pattern of the electronic water valve;

FIG. 5 is a schematic diagram of a second flow pattern of the electronic water valve;

FIG. 6 is a schematic diagram of a third flow pattern of the electronic water valve;

FIG. 7 is a schematic diagram of a fourth flow pattern of the electronic water valve;

FIG. 8 is a schematic diagram of a fifth flow pattern of the electronic water valve;

FIG. 9 is a top view of the electronic water valve superstructure;

FIG. 10 is a top view of a middle layer structure of the electronic water valve;

FIG. 11 is a top view of the electronic water valve substructure;

fig. 12 is a schematic perspective view of a gasket seal.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" is presented throughout this document, it is intended to include three schemes in parallel, taking "a and/or B" as an example, including a scheme, or B scheme, or a scheme where a and B meet simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

Referring to fig. 1 to 3, an electronic water valve 01 is provided according to an embodiment of the present invention, the electronic water valve 01 includes a valve housing 10 and a valve core 30, the valve housing 10 is provided with a first input port 11, a second input port 12, a first output port 13, a second output port 14, a third output port 15 and a fourth output port 16; the shaft core of the valve core 30 is provided with a through chamber 38, the valve core 30 comprises an upper layer structure 31, a middle layer structure 32 and a lower layer structure 33, the middle layer structure 32 is provided with a first open groove 321 and a first through hole 323, the upper layer structure 31 is provided with a second open groove 311, a second through hole 313 and a third through hole 312, and the second open groove 311 is communicated with the first open groove 321; the lower layer structure 33 is provided with a third open groove 331, a fourth port 333 and a fifth port 334, and the third open groove 331 is communicated with the first open groove 321; the first port 323, the second port 313, the fourth port 333, the third port 312, and the fifth port 334 are all in communication with the through chamber 38; the valve core 30 is rotatably installed in the valve housing 10, the first input port 11 communicates with the first open groove 321, and the second input port 12 communicates with the first through port 323; when the fourth output port 16 communicates with the second open groove 311, the second output port 14 communicates with the second port 313; or the first output port 13 communicates with the fourth port 333; when the first output port 13 is communicated with the third open groove 331, the fourth output port 16 is communicated with the third port 312; or the third output port 15 communicates with the fifth port 334; when the second output port 14 communicates with the second open groove 311, the third output port 15 communicates with the fifth port 334.

Referring to fig. 2, a valve housing 10 is provided with a first input port 11, a second input port 12, a first output port 13, a second output port 14, a third output port 15, and a fourth output port 16. The first and second input ports 11 and 12 are provided at opposite sides of the valve housing 10, respectively, with a space between the first and second input ports 11 and 12. The valve housing 10 is cut along the axial direction of the valve housing 10 by using the connecting line of the first input port 11 and the second input port 12 as a tangent line, wherein one of the two opposite side walls is provided with a first output port 13 and a second output port 14, and the other side wall is provided with a third output port 15 and a fourth output port 16. The first output port 13 and the third output port 15 are oppositely arranged, the extension lines of the axes of the first output port 13 and the third output port 15 are coincident, the distances from the central point of the first output port 13 and the third output port 15 to the bottom surface of the valve casing 10 are the same, and the distances from the central point of the first input port 11 and the second input port 12 are the same. The second output port 14 and the fourth output port 16 are disposed opposite to each other, the extension lines of the axes of the second output port 14 and the fourth output port 16 coincide, the distances from the center point of the second output port 14 and the fourth output port 16 to the bottom surface of the valve housing 10 are the same, and the distances from the center point of the first input port 11 and the second input port 12 are the same. The first output port 13 is disposed directly below the second output port 14, and a projection of a center point of the second output port 14 coincides with a projection of a center point of the first output port 13 in the axial direction of the valve housing 10. The third output port 15 is provided directly below the fourth output port 16 in the axial direction of the valve housing 10, and the projection of the center point of the fourth output port 16 coincides with the projection of the center point of the third output port 15. The valve housing 10 includes a first end and a second end, the first input port 11 and the second input port 12 are respectively disposed at opposite sides of the valve housing 10, extension lines of axes of the first input port 11 and the second input port 12 coincide, and distances from center points of the first input port 11 and the second input port 12 to a bottom surface of the valve housing 10 are the same. The distance from the first output port 13 to the first end is A1, the distance from the second output port 14 to the first end is A2, the distance from the first input port 11 to the first end is A1, the distance from the second input port 12 to the first end is A2, and the following relationship is satisfied: a1 < A1 < A2, A1 < A2, a1=a2. The axes of the first input port 11 and the second input port 12 are perpendicular to the axes of the first output port 13, the second output port 14, the third output port 15, and the fourth output port 16. It will be appreciated that the first input port 11, the second input port 12, the first output port 13, the second output port 14, the third output port 15 and the fourth output port 16 are disposed opposite to each other in upper, middle and lower layers on the valve housing 10, the second output port 14 and the fourth output port 16 are disposed opposite to each other in upper layers, the first input port 11 and the second input port 12 are disposed opposite to each other in the middle layer, the axes of the first input port 11 and the second input port 12 are perpendicular to the axes of the second output port 14 and the fourth output port 16, the first output port 13 and the third output port 15 are disposed in the lower layers, the axes of the first output port 13 and the third output port 15 are perpendicular to the axes of the first input port 11 and the second input port 12, and the projections of the axes of the first output port 13 and the third output port 15 coincide with the projections of the axes of the second output port 14 and the fourth output port 16.

Referring to fig. 3, a through chamber 38 is disposed on a core of the valve core 30, the valve core 30 includes an upper layer structure 31, a middle layer structure 32 and a lower layer structure 33, the middle layer structure 32 is provided with a first open groove 321 and a first through hole 323, and the first open groove 321 and the first through hole 323 are disposed adjacent to each other in a circumferential direction of the middle layer structure 32 and are not communicated with each other. The upper layer structure 31 is provided with a second open groove 311, a second port 313 and a third port 312 in turn in the circumferential direction, the second open groove 311 is communicated with the first open groove 321, the second open groove 311 is blocked with the second port 313 and the third port 312 respectively, and the second port 313 and the third port 312 can be communicated through the through chamber 38. The third open groove 331, the fourth opening 333 and the fifth opening 334 are sequentially arranged in the circumferential direction of the lower layer structure 33, the third open groove 331 is communicated with the second open groove 311, the third open groove 331 is blocked from the fourth opening 333 and the fifth opening 334, and the fourth opening 333 and the fifth opening 334 can be communicated through the through chamber 38. The through chamber 38 axially penetrates the upper layer structure 31, the middle layer structure 32 and the lower layer structure 33 along the valve core 30 to communicate the first through hole 323, the second through hole 313, the fourth through hole 333, the third through hole 312 and the fifth through hole 334.

The valve housing 10 is provided with two inlet ports, a first inlet port 11 and a second inlet port 12, respectively, and the valve housing 10 is further provided with four outlet ports, a first outlet port 13, a second outlet port 14, a third outlet port 15 and a fourth outlet port 16, respectively. Fluid flows in from the first input port 11 and the second input port 12 and out from the first output port 13, the second output port 14, the third output port 15 and the fourth output port 16. The valve core 30 is rotatably installed in the valve housing 10, the open grooves and the through holes on the valve core 30 may be formed with different passages, when the valve core 30 rotates, the first input port 11 on the valve housing 10 communicates with the first open groove 321, the second input port 12 communicates with the first through hole 323, and the output port may communicate with the different open grooves and through holes, forming five different flow modes, namely, a first flow mode, a second flow mode, a third flow mode, a fourth flow mode and a fifth flow mode.

Referring to fig. 4, when the valve element 30 is at the initial position, the electronic water valve 01 is in the first flow mode. The first input port 11 communicates with the first open groove 321, and the second input port 12 communicates with the first through-hole 323; the fourth output port 16 communicates with the second open groove 311, and the second output port 14 communicates with the second port 313. In the first flow mode, the electronic water valve 01 has two passages, one of which is that fluid flows from the first input port 11 into the first open groove 321 and out from the fourth output port 16 via the second open groove 311. The other path is for fluid to flow from the second input port 12 into the first port 323, through the through chamber 38, from the middle layer structure 32 to the upper layer structure 31, and out from the second output port 14 through the second port 313. The two paths do not interfere with each other, and the remaining output ports do not communicate with each other.

Referring to fig. 5, the valve core 30 rotates a certain angle, and the electronic water valve 01 is in the second flow mode. The first input port 11 communicates with the first open groove 321, and the second input port 12 communicates with the first through-hole 323; the fourth output port 16 communicates with the second open groove 311, and the first output port 13 communicates with the fourth port 333. In the second flow mode the electronic water valve 01 has two passages. One of the passages is for fluid to flow from the first input port 11 into the first open groove 321 and out from the fourth output port 16 via the second open groove 311. The other path is for fluid to flow from the second input port 12 into the first port 323, from the middle layer structure 32 to the lower layer structure 33 via the through chamber 38, and from the first output port 13 via the fourth port 333. The two paths are not mutually interfered, and the other output ports are not mutually communicated

Referring to fig. 6, the valve core 30 continues to rotate a certain angle, and the electronic water valve 01 is in the third flow mode. The first input port 11 communicates with the first open groove 321, and the second input port 12 communicates with the first through-hole 323; the fourth output port 16 communicates with the second open groove 311, and the second output port 14 communicates with the second port 313. In the third flow mode the electronic water valve 01 has two passages. One of the passages is for fluid to flow from the first input port 11 into the first open groove 321 and out from the first output port 13 via the third open groove 331. The other path is for fluid to flow from the second input port 12 into the first port 323, from the middle layer structure 32 to the upper layer structure 31 via the through chamber 38, and out from the fourth output port 16 via the third port 312. The two paths are not mutually interfered, and the other output ports are not mutually communicated

Referring to fig. 7, the valve core 30 continues to rotate a certain angle, and the electronic water valve 01 is in the fourth circulation mode. The first input port 11 communicates with the first open groove 321, and the second input port 12 communicates with the first through-hole 323; the fourth output port 16 communicates with the second open groove 311, and the first output port 13 communicates with the fourth port 333. In the fourth flow-through mode the electronic water valve 01 has two passages. One of the passages is for fluid to flow from the first input port 11 into the first open groove 321 and out from the first output port 13 via the third open groove 331. Another passage is for fluid to flow from the second input port 12 into the first port 323, through the through chamber 38, from the middle layer structure 32 to the lower layer structure 33, and out from the third output port 15 through the fifth port 334. The two paths are not mutually interfered, and the other output ports are not mutually communicated

Referring to fig. 8, the valve core 30 continues to rotate a certain angle, and the electronic water valve 01 is in the fifth circulation mode. The first input port 11 communicates with the first open groove 321, and the second input port 12 communicates with the first through-hole 323; the second output port 14 communicates with the second open groove 311, and the third output port 15 communicates with the fifth port 334. In the fifth flow-through mode the electronic water valve 01 has two passages. One of the passages is for fluid to flow from the first input port 11 into the first open groove 321 and out from the second output port 14 via the second open groove 311. Another passage is for fluid to flow from the second input port 12 into the first port 323, through the through chamber 38, from the middle layer structure 32 to the lower layer structure 33, and out from the third output port 15 through the fifth port 334. The two paths are not mutually interfered, and the other output ports are not mutually communicated

Referring to fig. 3, the valve core 30 is in a rotary cylinder shape, the valve core 30 includes a vertical plate 36, and a first turntable 341, a first baffle 351, a second baffle 352 and a second turntable 342 sequentially connected with the vertical plate 36 from top to bottom, the first turntable 341 and the first baffle 351 form a superstructure 31, the superstructure 31 is vertically provided with a plurality of first partition plates 314 and a coaming 37 connected with the first partition plates 314, the coaming 37 is provided with a first opening, a second opening and a third opening, two adjacent first partition plates 314, the vertical plate 36 and the first opening form a second open slot 311, two adjacent first partition plates 314 and the second opening form a second opening 313, and two adjacent first partition plates 314 and the third opening form a third opening 312; the first baffle 351 and the second baffle 352 form a middle layer structure 32, the middle layer structure 32 is vertically provided with two second baffle plates 324, and the two second baffle plates 324 separate the first open groove 321 from the first through hole 323; the second baffle 352 and the second turntable 342 form a lower structure 33, the lower structure 33 is vertically provided with a plurality of third baffle plates 332 and a coaming 37 connected with the third baffle plates 332, the coaming 37 is provided with a fourth opening, a fifth opening and a sixth opening, the adjacent two third baffle plates 332, the vertical plates 36 and the fourth opening form a third open groove 331, the adjacent two third baffle plates 332 and the fifth opening form a fourth opening 333, and the adjacent two first baffle plates 314 and the sixth opening form a fifth opening 334.

The valve core 30 comprises a vertical plate 36, wherein the vertical plate 36 is an arc-shaped vertical plate 36 with the radian smaller than 180 degrees, and the vertical plate 36 is provided with a convex surface and a concave surface. The through chamber 38 is provided at a concave surface of the riser 36. The first rotating disc 341 is connected to the top of the vertical plate 36, the second rotating disc 342 is connected to the bottom of the vertical plate 36, a first baffle 351 and a second baffle 352 are installed between the first rotating disc 341 and the second rotating disc 342, the first baffle 351 is close to the first rotating disc 341, the second baffle 352 is close to the second rotating disc 342, and the valve core 30 formed by the vertical plate 36, the first rotating disc 341, the first baffle 351, the second baffle 352 and the second rotating disc 342 is in a drum shape. The first rotating disc 341 and the first baffle 351 form a superstructure 31, a plurality of first partition plates 314 and a coaming 37 connected with the first partition plates 314 are vertically arranged between the first rotating disc 341 and the first baffle 351, a first opening, a second opening and a third opening are formed in the coaming 37, two adjacent first partition plates 314, a vertical plate 36 and the first opening form a second open groove 311, and the second open groove 311 is connected with the convex surface of the vertical plate 36; two adjacent first partition plates 314 and second openings form a second port 313, two adjacent first partition plates 314 and third openings form a third port 312, and the second port 313 and the third port 312 are connected with the concave surface of the vertical plate 36 through the through chamber 38. The first baffle 351 and the second baffle 352 form a middle layer structure 32, two second partition plates 324 are vertically arranged on the first baffle 351 and the second baffle 352, and the two second partition plates 324 are respectively connected with two side edges of the vertical plate 36 to separate the first open groove 321 from the first through hole 323. The first open groove 321 is connected to the convex surface of the riser 36, and the first through hole 323 is connected to the concave surface of the riser 36 through the through chamber 38. The second baffle 352 and the second turntable 342 form a lower structure 33, a plurality of third baffle plates 332 and a coaming 37 connected with the third baffle plates 332 are vertically arranged between the second baffle 352 and the second turntable 342, a fourth opening, a fifth opening and a sixth opening are arranged on the coaming 37, a third open groove 331 is formed by two adjacent third baffle plates 332, vertical plates 36 and fourth openings, and the third open groove 331 is connected with the convex surface of the vertical plates 36; two adjacent third partition plates 332 and fifth openings form a fourth opening 333, two adjacent first partition plates 314 and sixth openings form a fifth opening 334, and the fourth opening 333 and the fifth opening 334 are connected to the concave surface of the vertical plate 36 through the through chamber 38.

Referring to fig. 9 to 11, a central angle of the first through hole 323 is larger than that of the first open groove 321, and the first through hole 323 is provided with a reinforcing rib 322. The arc of the riser 36 is less than 180, and the convexity of the riser 36 is less than 180. The first open groove 321 and the first through hole 323 are partitioned by the second partition plate 324 at both side edges of the riser 36, a central angle of the first open groove 321 provided at the convex surface of the riser 36 is smaller than 180 °, and the first through hole 323 provided at the concave surface of the riser 36 is larger than 180 °. Regardless of how much the valve core 30 rotates, the electronic water valve 01 is in what flow mode, the first open groove 321 is always in communication with the first input port 11, and the first through port 323 is always in communication with the second input port 12. Fluid always flows from the first input port 11 into the first open slot 321 and fluid always flows from the second input port 12 into the first port 323. The first through hole 323 is provided with the stiffening rib 322, and first baffle 351 and second baffle 352 are connected to the stiffening rib 322, and the stiffening rib 322 can improve the stability of case 30, has avoided the too big condition that leads to the structure unstable of first through hole 323 radian, can prolong the life of case 30.

The central angle of the second open groove 311 is larger than the central angle of the third open groove 331 and smaller than the central angle of the first open groove 321; the projected two ends of the first open slot 321 are outside the projected two ends of the second open slot 311, and one projected end of the third open slot 331 falls into the projected first open slot 321, and the other projected end is outside the projected first open slot 321. The third opening 312 is adjacent to the second open groove 311, and the second opening 313 is spaced from the third opening 312 and the second open groove 311, respectively; the fourth opening 333 is spaced from the fifth opening 334 and adjacent to the third open groove 331. The central angles of the second port 313, the third port 312 and the fifth port 334 are equal, and the central angle of the fourth port 333 is larger than the second port 313 and smaller than the central angle of the first port 323; the projection ends of the second port 313, the fourth port 333 and the fifth port 334 are located within the projection ends of the first port 323, and the projection end of the third port 312 falls into the projection of the first port 323, while the other end is located outside the projection of the first port 323.

The central angle of the second open groove 311 is larger than the central angle of the third open groove 331 and smaller than the central angle of the first open groove 321, the central angle of the first open groove 321 is 152.9 °, the central angle of the second open groove 311 is 114 °, and the central angle of the third open groove 331 is 72 °. In the axial direction of the valve body 30, the projected ends of the first open groove 321 are out of the projected ends of the second open groove 311, and the projected ends of the third open groove 331 fall into the projected ends of the first open groove 321, while the other ends are out of the projected ends of the first open groove 321. The second open groove 311, the second opening 313 and the third opening 312 are sequentially distributed in the clockwise direction in the circumferential direction of the upper layer structure 31, the second open groove 311 being disposed adjacent to the third opening 312 with a space from the second opening 313; the second opening 313 is spaced apart from the third opening 312 and the second open groove 311, respectively. The third open groove 331, the fifth through hole 334, and the fourth through hole 333 are sequentially distributed in the clockwise direction in the circumferential direction of the lower layer structure 33, and the third open groove 331 is disposed adjacent to the fifth through hole 334 with a space from the fourth through hole 333; the fourth opening 333 is spaced from the third opening groove 331 and the fifth opening 334, respectively. The central angles of the second port 313, the third port 312 and the fifth port 334 are equal, and the central angle thereof is 30 degrees; the central angle of the fourth opening 333 is larger than the second opening 313 and smaller than the central angle of the first opening 323, and the central angle of the fourth opening 333 is 72 °. In the axial direction of the valve element 30, the projection ends of the second port 313, the fourth port 333 and the fifth port 334 are located within the projection ends of the first port 323, and the projection end of the third port 312 falls into the projection of the first port 323, while the other end is located outside the projection of the first port 323.

Referring to fig. 3, the first turntable 341 and the second turntable 342 are respectively provided with ribs 343. The protruding ribs 343 are disposed on the top surface of the first turntable 341 and the bottom surface of the second turntable 342, and the protruding ribs 343 are disposed in a ripple shape with the axis of the valve core 30 as the center. The ribs 343 can reduce friction resistance when the valve core 30 rotates, and the ribs 343 also play a role in guiding and positioning.

Referring to fig. 12, the electronic water valve 01 further includes a sealing gasket 20, the sealing gasket 20 is installed between the valve housing 10 and the valve core 30, the sealing gasket 20 is provided with through holes 21 corresponding to the first input port 11, the second input port 12, the first output port 13, the second output port 14, the third output port 15 and the fourth output port 16 one by one, and sealing ribs 22 are provided around the through holes 21. The outer wall of the sealing gasket 20 is connected with the electronic water valve 01, a plurality of through holes 21 are formed in the sealing gasket 20, the number of the through holes 21 is the same as that of ports on the electronic water valve 01, the size is the same, and the positions are the same. Sealing ribs 22 are arranged around the through holes 21, and when the ports are communicated with the passages of the valve core 30, the sealing ribs 22 on the sealing gasket 20 can improve the sealing effect of the sealing gasket 20. The seal rib 22 extends in the axial direction and the circumferential direction around the through hole 21. The sealing ribs 22 are staggered horizontally and longitudinally on the sealing gasket 20 to separate the through holes, so that the independent maintenance of the through holes of the valve housing 10 is ensured, and the electronic water valve 01 cannot leak.

The seal rib 22 is serrated. The serrated sealing ribs 22 can generate larger elastic deformation after being pressed, enough pressure is generated between the sealing gasket 20 and the valve casing 10, the sealing gasket 20 has larger compliance to the valve casing 10 and the valve core 30, and the sealing effect of the sealing gasket 20 is improved.

The gasket 20 includes an elastic deformation layer and a low friction layer, the elastic deformation layer being disposed at the outer periphery of the low friction layer. The elastic deformation layer is arranged at the periphery of the low friction resistance layer. The inner layer of the sealing gasket 20 is a low friction layer, the low friction layer is smooth, and when the valve core 30 rotates, the friction force between the two layers is small, so that the motor torque can be reduced. The outer layer of the sealing gasket 20 is an elastic deformation layer, the elastic deformation layer is provided with the sealing rib 22, the sealing rib 22 can generate larger elastic deformation after being pressed, enough pressure is generated between the sealing gasket 20 and the valve casing 10, the compliance of the sealing gasket 20 to the valve casing 10 and the valve core 30 is larger, the sealing effect of the sealing gasket 20 is improved, and internal leakage can be effectively reduced. The elastic deformation layer and the low friction layer can be formed by compounding by other processes after being respectively and independently formed, and can also be formed by common mode.

The elastic deformation layer is made of ethylene propylene diene monomer rubber. Ethylene propylene diene monomer is a copolymer of ethylene, propylene and a small amount of non-conjugated diene, and is one of ethylene propylene rubbers, denoted by EPDM (Ethylene Propylene Diene Monomer). The ethylene propylene diene monomer has the excellent characteristics of low cost, weather resistance, ozone resistance, heat resistance, acid and alkali resistance, water vapor resistance, wide application temperature range and the like. Ethylene propylene diene monomer with density of 0.87Kg/m ³ The rubber product can be filled with a large amount of oil and filler, so that the cost of the rubber product can be reduced. Ethylene propylene diene monomer lacks polarity and has low unsaturation degree, so the ethylene propylene diene monomer has better resistance to various polar chemicals such as alcohol, acid, alkali, oxidant, refrigerant, detergent, animal and vegetable oil, ketone, grease and the like. The ethylene propylene diene monomer rubber has wide applicable temperature range, the minimum use temperature is-40 to-60 ℃, the ethylene propylene diene monomer rubber can be used for a long time under the condition of 130 ℃ and can be used for a short time or intermittently at the temperature of 150 to 200 ℃.

The low friction resistance layer is made of polytetrafluoroethylene. The polytetrafluoroethylene (Teflon or PTFE) polymer compound polymerized by tetrafluoroethylene has excellent chemical stability, corrosion resistance, sealing property, high lubricating non-viscosity, electrical insulation property and good aging resistance. Polytetrafluoroethylene can be used for a long time at a high temperature of 200-260 ℃ and still remains soft at-100 ℃. Corrosion resistance, aqua regia resistance and all organic solvents. High lubrication, with a minimum coefficient of friction in plastics (0.04). Is non-tacky, has minimal surface tension in the solid material and does not adhere to any substances.

Referring to fig. 1, the electronic water valve 01 further includes a valve cover 50 and a driving device 40, wherein the valve cover 50 is installed above the valve housing 10, and the valve cover 50 is provided with a mounting hole for connecting the driving device 40. The electronic water valve 01 comprises a valve shell 10, a sealing gasket 20, a valve core 30, a valve cover 50 and a driving device 40, wherein the valve core 30 is arranged in the valve shell 10, the sealing gasket 20 is arranged between the valve shell 10 and the valve core 30, the valve cover 50 is arranged at the tops of the valve shell 10 and the valve core 30, and the driving device 40 is arranged above the valve cover 50. The valve cover 50 is used for limiting the movement of the valve core 30 in the axial direction, when the valve core 30 rotates, the valve core 30 cannot displace in the axial direction due to the limitation of the valve cover 50, so that the dislocation of the open groove or the port and the port is avoided, and the fluid cannot flow out of the output port or out of other output ports. The valve cover 50 is provided with mounting holes to be fixed in cooperation with the mounting of the driving device 40. The driving device 40 may be any power source capable of driving the valve core 30, so as to drive the valve core 30 to execute according to a preset path. In one embodiment, the valve cartridge 30 may also be provided with a hollow support post disposed within the through chamber 38. One end of the support column is connected with the blocking piece, the blocking piece can be provided with a protruding part, the protruding part stretches into the support column, and the blocking piece is connected with the support column in a clamping mode, so that the blocking piece is convenient to install and detach. The other end of the support column is connected with the valve cover 50, or the other end of the support column is sleeved with a connecting piece, and the valve cover 50 is arranged above the valve core 30 through the connecting piece.

According to the technical scheme, two input ports, namely a first input port 11 and a second input port 12, are formed in a valve shell 10; the valve housing 10 is further provided with four outlet ports, a first outlet port 13, a second outlet port 14, a third outlet port 15 and a fourth outlet port 16, respectively. The valve core 30 is provided with a second open groove 311, a first open groove 321 and a third open groove 331 which can be communicated from top to bottom in sequence, the upper layer of the other side of the valve core 30 is provided with a second port 313 and a third port 312, the middle layer is provided with a first port 323, and the lower layer is provided with a fourth port 333 and a fifth port 334. The spool of the spool 30 is provided with a through chamber 38, and the through chamber 38 penetrates the upper, middle and lower layers of the spool 30 to communicate the first, second, fourth, third and fifth ports 323, 313, 333, 312 and 334. The valve spool 30 is rotatably mounted to the valve housing 10 such that the first and second inlet ports 11 and 12 can communicate with different outlet ports through different open grooves or ports, and the two passages do not affect each other, thereby switching different flow modes. The electronic water valve 01 of the technical scheme of the invention has rich modes of the circulation loop, is compatible with one-to-many continuous switching function, and is suitable for a thermal management system with higher integration level.

A sealing gasket 20 is further arranged between the valve housing 10 and the valve core 30, and through holes 21 corresponding to the ports of the valve housing 10 one by one are arranged on the sealing gasket 20. The gasket 20 includes an elastic deformation layer and a low friction layer fitted on the inner periphery of the elastic deformation layer. The low friction layer attached to the valve core 30 is smooth, the friction force is small, and the required motor torque can be reduced when the valve core 30 rotates. The side of the elastic deformation layer attached to the valve housing 10 facing the valve housing 10 is provided with a sealing rib 22, and the sealing rib 22 extends around the through hole 21 in the axial direction and the circumferential direction of the sealing gasket 20. The sealing rib 22 is zigzag, the zigzag sealing rib 22 can generate larger elastic deformation after being pressed, enough pressure is generated between the sealing gasket 20 and the valve shell 10, the compliance of the sealing gasket 20 to the valve shell 10 and the valve core 30 is larger, the sealing effect of the sealing gasket 20 is improved, and the internal leakage of the electronic water valve 01 can be effectively reduced.

The electronic water valve 01 proposed by the solution of the present invention is applied to a thermal management system that generally serves energy storage (e.g. lithium ion battery), traction motors, other powertrain components and cabin environment systems. The thermal management system also includes components for cooling the fluid (i.e., a radiator or cooler) and/or components for heating the fluid (i.e., a heater). In different systems, the fluid transports different components through the passageways for various purposes, or heating or cooling. In thermal management systems, one type of system is a thermal system, in which a fluid may be water, coolant, and/or refrigerant that is circulated to transfer thermal energy between two or more portions of the system. In a different system, the fluid may be another fluid suitable for the current system.

The invention also provides a thermal management system, which comprises the electronic water valve 01, wherein the specific structure of the electronic water valve 01 refers to the embodiment, and as the thermal management system adopts all the technical schemes of all the embodiments, at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.

The invention also provides a vehicle, which comprises a thermal management system, wherein the specific structure of the thermal management system refers to the embodiment, and the vehicle adopts all the technical schemes of all the embodiments, so that the vehicle at least has all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.

The foregoing description is only of the optional embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structural modifications made by the present description and accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present invention.

Claims

1. An electronic water valve, the electronic water valve comprising:

2. The electronic water valve of claim 1, wherein the valve core is in a drum shape, the valve core comprises a vertical plate and a first rotary table, a first baffle, a second baffle and a second rotary table which are sequentially connected with the vertical plate from top to bottom,

3. The electronic water valve of claim 2, wherein a central angle of the first port is greater than a central angle of the first open slot, the first port being provided with a stiffening rib.

4. The electronic water valve of claim 3, wherein a central angle of the second open slot is greater than the third open slot and less than a central angle of the first open slot; the two ends of the projection of the first open slot are out of the two ends of the projection of the second open slot, one end of the projection of the third open slot falls into the projection of the first open slot, and the other end of the projection of the third open slot is out of the projection of the first open slot.

5. The electronic water valve of claim 4, wherein the third port is adjacent to the second open slot, the second port being spaced from the third port and the second open slot, respectively; and a space is reserved between the fourth port and the fifth port and is adjacent to the third open groove.

6. The electronic water valve of claim 5, wherein the central angles of the second port, the third port, and the fifth port are equal, and the central angle of the fourth port is greater than the second port and less than the central angle of the first port; the second port, the fourth port and the fifth port are positioned at the two projection ends of the first port, one projection end of the third port falls into the projection of the first port, and the other projection end of the third port is positioned outside the projection of the first port.

7. The electronic water valve of claim 6, wherein the first and second turntables are each provided with a bead.

8. The electronic water valve of claim 7, further comprising a sealing gasket mounted between the valve housing and the valve spool, the sealing gasket being provided with through holes in one-to-one correspondence with the first input port, the second input port, the first output port, the second output port, the third output port, and the fourth output port, the through holes being provided with sealing ribs around.

9. The electronic water valve of claim 8, wherein the sealing bead is serrated.

10. The electronic water valve of claim 9, wherein the gasket comprises an elastically deformable layer and a low friction layer, the elastically deformable layer disposed around the low friction layer.

11. The electronic water valve of claim 10, further comprising a valve cover and a drive device, the valve cover being mounted above the valve housing, the valve cover being provided with a mounting hole for connecting the drive device.

12. A thermal management system comprising the electronic water valve of claims 1-11.

13. A vehicle comprising the thermal management system of claim 12.