A water valve for thermal management system of new energy electric vehicles

Abstract

The present invention discloses a water valve for a thermal management system of a new energy electric vehicle, which is characterized by comprising a valve body and a valve core; the valve body comprises a mounting cylinder, the mounting cylinder has a mounting cavity with a front end opening and matched with the valve core, and the valve core is rotatably mounted in the mounting cavity. The advantage is that a six-position eight-way water valve formed by the above structure can be used to replace two four-way valves of conventional structure to achieve the same function, and can be applied to the thermal management system of a new energy electric vehicle, which can effectively simplify the system, reduce the cost of the entire system and the risk of failure, and at the same time play a role in simplifying the layout of the entire vehicle.

Description

Technical Field

[0001] The invention relates to a water valve, in particular to a water valve used in a thermal management system of a new energy electric vehicle. Background Art

[0002] Conventional new energy electric vehicle thermal management systems have many parts in the water circuit, and often require multiple conventional three-way water valves and four-way water valves to switch between modes. Using multiple water valves is not only costly, but also requires more water pipes to be connected, resulting in a higher risk of failure, and also increases the complexity of the vehicle layout. So how to design a water valve to replace multiple conventional water valves to simplify the new energy electric vehicle thermal management system, reduce the cost of the entire system and the risk of failure, and simplify the vehicle layout has become an urgent problem to be solved. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a water valve for the thermal management system of a new energy electric vehicle with a simple structure, which can be used to replace multiple conventional water valves to simplify the thermal management system of a new energy electric vehicle, reduce the cost of the entire system and the risk of failure, and simplify the overall vehicle layout.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] A water valve for a thermal management system of a new energy electric vehicle, comprising a valve body and a valve core;

[0006] The valve body comprises a mounting cylinder, the mounting cylinder has a mounting cavity with a front end opening and matched with the valve core, and the valve core is rotatably mounted in the mounting cavity;

[0007] The valve core includes a circular first baffle, a second baffle and a third baffle which are arranged in sequence from front to back. The first baffle, the second baffle and the third baffle are parallel, coaxial and spaced apart from each other. The first baffle is connected to the second baffle by four evenly distributed support columns. A partition is arranged between the first baffle and the second baffle. The partition is arranged between the four support columns. The upper and lower ends of the partition are respectively connected to the front end surface of the second baffle through a first partition. The first partition is located between two adjacent support columns. The left and right sides of the first partition are respectively connected to the support columns at corresponding positions. The left and right ends of the partition are respectively connected to the first baffle. The second baffle is connected to the rear end surface of the first baffle, the second baffle is located between two adjacent support columns, and the upper and lower sides of the second baffle are respectively connected to the support columns at corresponding positions, so that four chambers, namely the first chamber, the second chamber, the third chamber and the fourth chamber, are formed between the first baffle and the second baffle through the four support columns, the two first baffles, the two second baffles and the separator, the front part of the first chamber and the fourth chamber has a front through cavity that passes through from top to bottom, the rear part of the second chamber and the third chamber has a rear through cavity that passes through from left to right, and the front through cavity and the rear through cavity are separated by the separator and arranged in a cross shape;

[0008] The centers of the second partition plate and the third partition plate are connected by a central column, and first partition walls are respectively arranged on two opposite sides of the central column, and the front and rear ends of the first partition wall are respectively connected to the rear end surface of the second partition plate and the front end surface of the third partition plate, so as to separate the second partition plate and the third partition plate into a left chamber and a right chamber, and the left chamber is evenly divided into two independent chambers by the second partition wall;

[0009] The installation cylinder is provided with eight interfaces that penetrate inside and outside, four of which are located between the first partition plate and the second partition plate, and the remaining four interfaces are located between the second partition plate and the third partition plate.

[0010] The four interfaces between the first partition and the second partition are arranged at intervals at the lower part of the installation cylinder, and the four interfaces are arranged symmetrically in pairs with the vertical plane passing through the central axis of the installation cylinder as the boundary. The above structure enables each interface to occupy a 90-degree sector-shaped interval, and the two opposite interfaces are connected, while the two adjacent interfaces are not connected. In this way, it can be ensured that the state of the external through-interfaces corresponding to the four interfaces between the first partition and the second partition remains unchanged when the valve core rotates an integer multiple of 90 degrees each time.

[0011] The four interfaces between the second partition plate and the third partition plate are evenly spaced and arranged along the circumferential wall of the mounting cylinder, and are reasonably arranged in coordination with the valve core structure.

[0012] The angle between the central plane of the two first partition walls and the central plane of the two opposite support columns is 0 to 45 degrees. This design can make the interfaces corresponding to each partition wall space evenly distributed along the circumference and occupy a small angle, which is conducive to demolding during the production of the external shell.

[0013] A sealing cylinder that penetrates front and back is arranged between the installation cylinder and the valve core. The sealing cylinder is provided with communication ports that penetrate inside and outside at the positions corresponding to the eight interfaces. The sealing cylinder is fixedly arranged in the installation cylinder, and the valve core is rotatably arranged in the sealing cylinder. The sealing cylinder is arranged to separate the eight interfaces to prevent leakage between the interfaces during operation.

[0014] The valve body also includes a valve seat, and eight valve ports are arranged on the valve seat. The eight valve ports correspond to the eight interfaces, and each interface is connected to the corresponding valve port through a channel.

[0015] The front end opening of the installation cylinder is sealed by a valve cover.

[0016] A rear shaft is arranged at the center of the rear end face of the third partition, a rotating mounting seat is arranged at the inner rear end face of the mounting cylinder, a rotating mounting cavity matching with the rear shaft is arranged on the rotating mounting seat, the rear shaft extends into and is rotatably arranged in the rotating mounting cavity, a front shaft is arranged at the center of the front end face of the first partition, the front shaft is coaxial with the rear shaft, and the front shaft extends out of the valve cover, so as to realize the stable rotatable installation of the valve seat, and after the front shaft extends out of the valve cover, it can be used to connect with a corresponding power source (such as a motor) to realize rotation drive.

[0017] A limit plate is provided on the inner rear end face of the mounting cylinder, and the limit plate is provided between the rotating mounting seat and the inner side wall of the mounting cylinder. A limit block is provided on the rear end face of the third partition plate that cooperates with the limit plate, and the rotation of the valve core is limited by the cooperation between the limit plate and the limit block.

[0018] Compared with the prior art, the advantages of the present invention are: a six-position eight-way water valve structured as above can be used to replace two four-way valves of conventional structure to achieve the same function, and can be applied to the thermal management system of new energy electric vehicles, which can effectively simplify the system, reduce the cost of the entire system and the risk of failure, and at the same time simplify the layout of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 It is a cross-sectional structural schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the decomposition structure of the present invention;

[0022] Figure 4 It is a schematic diagram of the first three-dimensional structure of the valve body in the present invention;

[0023] Figure 5 It is a second three-dimensional structural schematic diagram of the valve body in the present invention;

[0024] Figure 6 It is a bottom view structural schematic diagram of the valve body in the present invention;

[0025] Figure 7 It is a schematic diagram of a first three-dimensional structure of the valve core in the present invention;

[0026] Figure 8 It is a second three-dimensional structural schematic diagram of the valve core in the present invention;

[0027] Figures 9 to 14 It is a schematic diagram of the connection of various valve ports when the valve core rotates at different angles in different working modes of the present invention. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings.

[0029] like Figures 1 to 8 As shown, a water valve for a thermal management system of a new energy electric vehicle comprises a valve body 1 and a valve core 2;

[0030] The valve body 1 includes a mounting cylinder 101, which has a mounting cavity 11 with a front end opening and matches with the valve core 2, and the valve core 2 is rotatably mounted in the mounting cavity 11;

[0031] The valve core 2 includes a circular first baffle 201, a second baffle 202 and a third baffle 203 which are arranged in sequence from front to back. The first baffle 201, the second baffle 202 and the third baffle 203 are parallel and coaxial in front and back and are arranged at intervals. The first baffle 201 and the second baffle 202 are connected by four evenly distributed support columns 21. A partition 22 is arranged between the first baffle 201 and the second baffle 202. The partition 22 is arranged between the four support columns 21. The upper and lower ends of the partition 22 are respectively connected to the front end surface of the second baffle 202 through a first baffle 23. The first baffle 23 is located between two adjacent support columns 21. The left and right sides of the first baffle 23 are respectively connected to the support columns 21 at corresponding positions. The left and right ends of the partition 22 are respectively The second baffle plate 24 is connected to the rear end surface of the first baffle plate 201, and the second baffle plate 24 is located between two adjacent support columns 21. The upper and lower sides of the second baffle plate 24 are respectively connected to the support columns 21 at corresponding positions, so that four chambers, namely the first chamber Q1, the second chamber Q2, the third chamber Q3 and the fourth chamber Q4, are formed between the first baffle plate 201 and the second baffle plate 202 through the four support columns 21, the two first baffle plates 23, the two second baffle plates 24 and the separator 22. The front part of the first chamber Q1 and the fourth chamber Q4 has a front through-hole G1 that penetrates up and down, and the rear part of the second chamber Q2 and the third chamber Q3 has a rear through-hole G2 that penetrates left and right. The front through-hole G1 and the rear through-hole G2 are separated by the separator 22 and are arranged in a cross shape.

[0032] The centers of the second partition plate 202 and the third partition plate 203 are connected by a central column 25, and first partition walls 26 are respectively provided on two opposite sides of the central column 25. The front and rear ends of the first partition wall 26 are respectively connected to the rear end surface of the second partition plate 202 and the front end surface of the third partition plate 203, so as to separate the second partition plate 202 and the third partition plate 203 into a left chamber 27 and a right chamber 28. The left chamber 27 is evenly divided into two independent chambers by a second partition wall 29.

[0033] Eight interfaces (J1, J2, J3, J4, J5, J6, J7, J8) are provided on the installation cylinder 101, of which four interfaces (J1, J2, J3, J4) are located between the first partition plate 201 and the second partition plate 202, and the remaining four interfaces (J5, J6, J7, J8) are located between the second partition plate 202 and the third partition plate 203.

[0034] In this specific embodiment, the four interfaces (J1, J2, J3, J4) located between the first partition 201 and the second partition 202 are spaced apart at the lower part of the mounting cylinder 101, and the four interfaces (J1, J2, J3, J4) are symmetrically arranged in pairs with a vertical plane passing through the central axis of the mounting cylinder 101 as the boundary.

[0035] In this specific embodiment, four interfaces ( J5 , J6 , J7 , and J8 ) between the second partition plate 202 and the third partition plate 203 are evenly spaced along the circumferential wall of the mounting cylinder 101 .

[0036] In this specific embodiment, the angle between the central planes of the two first barrier walls 26 and the central planes of the two opposite support columns 2 is 0 to 45°.

[0037] In this specific embodiment, the angle is 5°.

[0038] In this specific embodiment, a sealing cylinder 3 that penetrates front and back is arranged between the installation cylinder 101 and the valve core 2. The sealing cylinder 3 is respectively provided with connecting ports 31 that penetrate inside and outside at the positions corresponding to the eight interfaces (J1, J2, J3, J4, J5, J6, J7, and J8). The sealing cylinder 3 is fixedly arranged in the installation cylinder 101, and the valve core 2 is rotatably arranged in the sealing cylinder 3. The sealing cylinder 3 is arranged to separate the eight interfaces to prevent leakage between the interfaces during operation.

[0039] In this specific embodiment, the valve body 1 also includes a valve seat 102, on which eight valve ports (AA, BB, CC, DD, PP1, PP2, PP3, PP4) are arranged. The eight valve ports (AA, BB, CC, DD, PP1, PP2, PP3, PP4) correspond to eight interfaces (J1, J2, J3, J4, J5, J6, J7, J8), and each interface is connected to the corresponding valve port through a channel T.

[0040] In this specific embodiment, the front end opening of the mounting cylinder 101 is covered by a valve cover 103 .

[0041] In this specific embodiment, a rear rotation axis Z1 is arranged at the center of the rear end face of the third partition plate 203, a rotation mounting seat 4 is arranged at the inner rear end face of the mounting cylinder 101, a rotation mounting cavity 41 matching with the rear rotation axis Z1 is arranged on the rotation mounting seat 4, the rear rotation axis Z1 extends into and is rotatably arranged in the rotation mounting cavity 41, and a front rotation axis Z2 is arranged at the center of the front end face of the first partition plate 201, the front rotation axis Z2 is coaxial with the rear rotation axis Z1, and the front rotation axis Z2 extends out of the valve cover 103. The valve seat 102 is stably rotatably mounted, and after the front rotation axis Z2 extends out of the valve cover 103, it can be used to connect with a corresponding power source (such as a motor) to realize rotation drive.

[0042] In this specific embodiment, a limiting plate 5 is provided on the inner rear end face of the mounting cylinder 101, and the limiting plate 5 is arranged between the rotating mounting seat 4 and the inner side wall of the mounting cylinder 101. A limiting block 6 cooperating with the limiting plate 5 is provided on the rear end face of the third partition plate 203, and the rotation limitation of the valve core 2 is achieved by the cooperation between the limiting plate 5 and the limiting block 6.

[0043] Fig. 9 Schematic diagram of the sectional structure of different cross sections under the same working mode. In this working mode, the angle between the limit block 6 and the limit plate 5 is 5°, the valve port BB is connected to the valve port CC, and the valve port PP2 is connected to the valve port PP3; Fig.10 Schematic diagram of the sectional structure of different cross sections under the same working mode. In this working mode, the angle between the limit block 6 and the limit plate 5 is 95°, the valve port AA is connected to the valve port BB, and the valve port PP2 is connected to the valve port PP3; Fig.11 Schematic diagram of the sectional structure of different cross sections under the same working mode. In this working mode, the angle between the limit block 6 and the limit plate 5 is 185°, the valve port AA is connected to the valve port DD, the valve port PP2 is connected to the valve port PP3, and the valve port PP1 is connected to the valve port PP4; Fig.12 Schematic diagram of the sectional structure of different cross sections under the same working mode. In this working mode, the angle between the limit block 6 and the limit plate 5 is 230°, the valve port AA is connected to the valve port DD, the valve port PP1 is connected to the valve port PP2, and the valve port PP3 is connected to the valve port PP4; Fig.13 Schematic diagram of the sectional structure of different cross sections under the same working mode. In this working mode, the angle between the limit block 6 and the limit plate 5 is 275°, the valve port CC is connected to the valve port DD, the valve port PP1 is connected to the valve port PP4, and the valve port PP3 is connected to the valve port PP4; Fig.14 It is a schematic diagram of the sectional structure of different cross sections under the same working mode. In this working mode, the angle between the limit block 6 and the limit plate 5 is 320°, the valve port CC is connected to the valve port DD, the valve port AA is connected to the valve port BB, the valve port PP1 is connected to the valve port PP2, and the valve port PP3 is connected to the valve port PP4.

Claims

1. A water valve for a thermal management system of a new energy electric vehicle, characterized in that Including valve body and valve core; The valve body comprises a mounting cylinder, the mounting cylinder has a mounting cavity with a front end opening and matched with the valve core, and the valve core is rotatably mounted in the mounting cavity; The valve core includes a circular first baffle, a second baffle and a third baffle which are arranged in sequence from front to back. The first baffle, the second baffle and the third baffle are parallel, coaxial and spaced apart from each other. The first baffle is connected to the second baffle by four evenly distributed support columns. A partition is arranged between the first baffle and the second baffle. The partition is arranged between the four support columns. The upper and lower ends of the partition are respectively connected to the front end surface of the second baffle through a first partition. The first partition is located between two adjacent support columns. The left and right sides of the first partition are respectively connected to the support columns at corresponding positions. The left and right ends of the partition are respectively connected to the first baffle. The second baffle is connected to the rear end surface of the first baffle, the second baffle is located between two adjacent support columns, and the upper and lower sides of the second baffle are respectively connected to the support columns at corresponding positions, so that four chambers, namely the first chamber, the second chamber, the third chamber and the fourth chamber, are formed between the first baffle and the second baffle through the four support columns, the two first baffles, the two second baffles and the separator, the front part of the first chamber and the fourth chamber has a front through cavity that passes through from top to bottom, the rear part of the second chamber and the third chamber has a rear through cavity that passes through from left to right, and the front through cavity and the rear through cavity are separated by the separator and arranged in a cross shape; The centers of the second partition plate and the third partition plate are connected by a central column, and first partition walls are respectively arranged on two opposite sides of the central column, and the front and rear ends of the first partition wall are respectively connected to the rear end surface of the second partition plate and the front end surface of the third partition plate, so as to separate the second partition plate and the third partition plate into a left chamber and a right chamber, and the left chamber is evenly divided into two independent chambers by the second partition wall; The installation cylinder is provided with eight interfaces that are connected inside and outside, four of which are located between the first partition plate and the second partition plate, and the remaining four interfaces are located between the second partition plate and the third partition plate; A sealing cylinder that penetrates front and back is arranged between the installation cylinder and the valve core. The sealing cylinder is provided with communication ports that penetrate inside and outside at positions corresponding to the eight interfaces. The sealing cylinder is fixedly arranged in the installation cylinder, and the valve core is rotatably arranged in the sealing cylinder. The front end opening of the installation cylinder is sealed by a valve cover.

2. A water valve for a thermal management system of a new energy electric vehicle as claimed in claim 1, characterized in that The four interfaces between the first partition plate and the second partition plate are arranged at intervals at the lower part of the installation cylinder, and the four interfaces are arranged symmetrically in pairs with a vertical plane passing through the central axis of the installation cylinder as a boundary.

3. A water valve for a thermal management system of a new energy electric vehicle as claimed in claim 1 or 2, characterized in that The four interfaces between the second partition plate and the third partition plate are evenly spaced and arranged along the circumferential wall of the installation cylinder.

4. A water valve for a thermal management system of a new energy electric vehicle as claimed in claim 1, characterized in that The angle between the central plane of the two first barrier walls and the central plane of the two opposite support columns is 0 to 45 degrees.

5. A water valve for a thermal management system of a new energy electric vehicle as claimed in claim 1, characterized in that The valve body also includes a valve seat, and eight valve ports are arranged on the valve seat. The eight valve ports correspond to the eight interfaces, and each interface is connected to the corresponding valve port through a channel.

6. A water valve for a thermal management system of a new energy electric vehicle as claimed in claim 1, characterized in that A rear rotating shaft is arranged at the center of the rear end face of the third partition, a rotating mounting seat is arranged at the inner rear end face of the mounting cylinder, a rotating mounting cavity matching with the rear rotating shaft is arranged on the rotating mounting seat, the rear rotating shaft extends into and is rotatably arranged in the rotating mounting cavity, a front rotating shaft is arranged at the center of the front end face of the first partition, the front rotating shaft is coaxial with the rear rotating shaft, and the front rotating shaft extends out of the valve cover.

7. A water valve for a thermal management system of a new energy electric vehicle as claimed in claim 6, characterized in that A limit plate is provided on the inner rear end face of the mounting cylinder, and the limit plate is provided between the rotating mounting seat and the inner side wall of the mounting cylinder. A limit block is provided on the rear end face of the third partition plate that cooperates with the limit plate, and the rotation of the valve core is limited by the cooperation between the limit plate and the limit block.

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