Six-way valve and vehicle

Abstract

The six-way valve comprises a valve body and a valve element, a cavity is formed in the valve body, six pipe openings are formed in the valve body and arranged in the circumferential direction of the valve body, the valve element is rotationally arranged in the cavity, the valve element is provided with a first flow channel and a second flow channel which intersect and communicate with each other, and the first flow channel and the second flow channel are communicated with each other. When the valve element rotates to different angles, one or two of the first flow channel and the second flow channel are matched with each other to enable two pipe openings to be communicated, and one or two of the third flow channel and the fourth flow channel are matched with each other to enable the other two pipe openings to be communicated. In this way, the stability of the thermal management system can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile thermal management systems, in particular to a six-way valve and a vehicle. BACKGROUND

[0002] With the rapid development of automobiles, the thermal management system has become a core module for improving the energy efficiency, range and comfort of vehicles, which needs to precisely regulate and control the cooling liquid flow path to achieve the multi-functional goals of battery temperature control, cabin heating, motor cooling and air conditioning coordination. The traditional thermal management system generally adopts a decentralized multi-valve architecture, which combines multiple independent two-, three- or four-way valves to build a cooling loop, resulting in a large number of components, poor reliability, and increased difficulty in vehicle layout. The existing six-way valve structure has poor performance. In view of this, how to improve the stability of the system and simplify the thermal management system has become a problem to be solved. CONTENT OF THE UTILITY MODEL

[0003] The technical problem solved by the present application is to provide a six-way valve and a vehicle that can improve the stability of the thermal management system.

[0004] To solve the above technical problems, one technical solution adopted by the present application is to provide a six-way valve, comprising: a valve body, an internal cavity is formed in the valve body, and six pipe openings are provided on the valve body, the six pipe openings are arranged along the circumference of the valve body; a valve core is rotatably arranged in the cavity, the valve core is provided with a first flow channel, a second flow channel, and a third flow channel, a fourth flow channel intersecting and communicating with each other, when the valve core is rotated to different angles, one or two of the first flow channel and the second flow channel cooperate to communicate two of the pipe openings, and one or two of the third flow channel and the fourth flow channel cooperate to communicate the other two pipe openings.

[0005] Among them, the first flow channel, the second flow channel, the third flow channel and the fourth flow channel are arc-shaped flow channels.

[0006] Among them, the first flow channel and the third flow channel are symmetrically arranged about a first symmetry axis passing through the center of the valve core; the second flow channel and the fourth flow channel are symmetrically arranged about a second symmetry axis passing through the center of the valve core.

[0007] Among them, the six pipe openings include a first pipe opening, a second pipe opening, a third pipe opening, a fourth pipe opening, a fifth pipe opening and a sixth pipe opening arranged in sequence along the circumference of the valve body, wherein the second pipe opening and the third pipe opening are arranged in abutment with part of the outer side wall, the fifth pipe opening and the sixth pipe opening are arranged in abutment with part of the outer side wall, and the first pipe opening is arranged centrally between the second pipe opening and the sixth pipe opening, and the fourth pipe opening is arranged centrally between the third pipe opening and the fifth pipe opening.

[0008] The six-way valve further comprises a sealing layer arranged on the inner side wall of the valve body.

[0009] The thickness of the sealing layer ranges from 1mm to 1.5mm.

[0010] The material of the sealing layer comprises at least one of polytetrafluoroethylene, ethylene propylene diene rubber, silicone rubber and polyurethane.

[0011] The valve core comprises one of a ball valve and a cylindrical valve.

[0012] The six-way valve further comprises a driver for driving the valve core to rotate relative to the valve body.

[0013] To solve the above technical problems, another technical solution adopted by the present application is to provide a vehicle comprising the six-way valve according to any one of the above.

[0014] The present application has the following advantages: different from the prior art, the present application sets the valve core in the space of the valve body, sets multiple flow channels in the valve core, and the first flow channel intersects and communicates with the second flow channel, the third flow channel intersects and communicates with the fourth flow channel, the valve core is rotated to a corresponding angle, two pipe openings in the valve body communicate with the first flow channel and the second flow channel, and the other two pipe openings communicate with the third flow channel and the fourth flow channel, liquid flows to the corresponding loop through the pipe openings, mode switching is realized by rotating the valve core at a small angle, the mode switching speed is improved, the stability of the system is improved, and the thermal management system is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort. Among them:

[0016] Figure 1 is a structural schematic diagram of an embodiment of the six-way valve of the present application;

[0017] Figure 2 is a structural schematic diagram of the valve body in Figure 1 ;

[0018] Figure 3 is a schematic diagram of the six-way valve in the first working mode;

[0019] Figure 4 is a schematic diagram of the six-way valve in the second working mode;

[0020] Figure 5 is a schematic diagram of the six-way valve in the third working mode;

[0021] Figure 6 is a schematic view of the six-way valve in the fourth working mode;

[0022] Figure 7 is a schematic view of the six-way valve in the fifth working mode. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0024] Referring to Figure 1 and Figure 2 , the six-way valve 1 comprises a valve body 10 and a valve core 20.

[0025] The valve body 10 is internally formed with a cavity 11, and the valve body 10 is provided with six ports, which are arranged along the circumference of the valve body 10. Specifically, the cavity 11 in the valve body 10 is in communication with the six ports, and the six ports comprise a first port 110, a second port 120, a third port 130, a fourth port 140, a fifth port 150 and a sixth port 160 arranged in sequence along the circumference of the valve body 10, and the six ports are respectively in communication with different external circuits. When the different ports are connected, the liquid flows into one port and flows out from another port, and the different external circuits are connected.

[0026] The valve core 20 is rotationally arranged in the cavity 11, and the valve core 20 is provided with a first flow channel 210, a second flow channel 220, a third flow channel 230 and a fourth flow channel 240 which intersect and are in communication. When the valve core 20 is rotated to different angles, one or two of the first flow channel 210 and the second flow channel 220 cooperate to connect two ports, and one or two of the third flow channel 230 and the fourth flow channel 240 cooperate to connect the other two ports.

[0027] Specifically, the valve core 20 is disposed within the cavity 11 of the valve body 10. The first flow channel 210 and the second flow channel 220 intersect and are interconnected. Liquid can flow in and out of the first flow channel 210, or flow in and out of the second flow channel 220. Liquid can change its flow path or maintain its original flow path between the first and second flow channels 210 and 220. The same applies to the intersection and interconnection of the third flow channel 230 and the fourth flow channel 240. In short, when the flow channel is connected to the port... When the flow is open, the liquid flows into a flow channel through a pipe opening, and flows out from another pipe opening through the flow channel or a flow channel intersecting with the flow channel, thereby connecting with an external circuit. When the flow channel and the pipe opening are not connected, the flow channel is aligned with the inner wall of the valve body 10 to achieve sealing of the flow channel. This application switches different flow channels by changing the angle of the valve core 20, so as to connect the six-way valve 1 with different external circuits and thus switch the working mode of the six-way valve 1. The following is a brief introduction to the five working modes that can be applied in this application.

[0028] In the first working mode, that is, in normal mode, such as Figure 3 As shown, in one circuit, liquid flows from the third port 130 to the first port 110, and in another circuit, liquid flows from the sixth port 160 to the fourth port 140. The air conditioner can be used to heat up and cool down the vehicle interior, and the battery is used to power the vehicle. The external circuit connecting the first port 110 and the third port 130 connects the air conditioner and the battery, and the sixth port 160 connects to the low-temperature radiator, so that the air conditioner and the battery can cool normally.

[0029] In the second operating mode, i.e., in low-temperature heat dissipation mode, such as Figure 4 As shown, in one loop, liquid flows from the sixth port 160 to the first port 110, and in another loop, liquid flows from the third port 130 to the fifth port 150. The sixth port 160 is connected to a low-temperature radiator to dissipate heat from the battery and motor.

[0030] In the third operating mode, i.e., in motor heat preservation mode, such as Figure 5 As shown, in one circuit, liquid flows from the third port 130 to the first port 110. In another circuit, liquid flows from the fifth port 150 to the fourth port 140. The fifth port 150 is connected to the motor. Since the port of the valve body 10 is not connected to the low-temperature radiator at this time, the motor does not dissipate heat. Therefore, the heat loss of the motor is reduced and the motor is kept warm.

[0031] In the fourth operating mode, namely the waste heat heating battery mode, such as Figure 6 As shown, in one circuit, liquid flows from the sixth port 160 to the first port 110, and in another circuit, liquid flows from the third port 130 to the fourth port 140, so that the heat from the motor heats the battery.

[0032] In the fifth working mode, i.e. in the waste heat heating mode, as shown in FIG. 8, in one loop, the liquid flows from the sixth port 160 to the first port 110, and in the other loop, the liquid flows from the second port 120 to the fourth port 140, so that the heat of the motor is used to heat the air conditioner. Figure 7

[0033] The present application sets the valve core 20 in the space of the valve body 10, sets multiple flow channels in the valve core 20, and the first flow channel 210 intersects and communicates with the second flow channel 220, and the third flow channel 230 intersects and communicates with the fourth flow channel 240. The valve core 20 is rotated to a corresponding angle, two ports in the valve body 10 communicate the first flow channel 210 and the second flow channel 220, and the other two ports communicate the third flow channel 230 and the fourth flow channel 240. The liquid flows to the corresponding loop through the ports. The mode switching is realized by rotating the valve core 20 by a small angle, the mode switching speed is improved, the stability of the system is improved, and the thermal management system is simplified.

[0034] Continuing to refer to Figure 1 , the first flow channel 210, the second flow channel 220, the third flow channel 230, and the fourth flow channel 240 are all arc-shaped flow channels.

[0035] Specifically, the arc-shaped flow channel reduces the local resistance when the liquid flows by smooth transition, improves the transmission efficiency of the liquid in the flow channel, the first flow channel 210 intersects the second flow channel 220, and the third flow channel 230 intersects the fourth flow channel 240. The arc-shaped path makes the fluid change direction more uniformly, avoiding the turbulence and pressure fluctuation caused by the centrifugal force in the right-angle bend.

[0036] In another embodiment, the first flow channel 210 and the second flow channel 220 are arc-shaped flow channels, and the third flow channel 230 and the fourth flow channel 240 are straight flow channels, or the first flow channel 210 and the second flow channel 220 are straight flow channels, and the third flow channel 230 and the fourth flow channel 240 are arc-shaped flow channels. In yet another embodiment, the first flow channel 210 and the third flow channel 230 are arc-shaped flow channels, and the second flow channel 220 and the fourth flow channel 240 are straight flow channels.

[0037] In an embodiment, the diameter of the port on the valve body 10 is greater than one time or more of the diameter of the flow channel on the valve core 20, for example, the diameter of the first port 110 is greater than one time or more of the diameter of the first flow channel 210, and the diameter of the second port 120 is greater than one time or more of the diameter of the second flow channel 220. It can also be that the diameter of the second port 120 is greater than one time or more of the diameter of the first flow channel 210. It should be noted that the present application does not limit the specific values of the diameter of the port and the diameter of the flow channel. There is a diameter difference between the diameter of the port and the diameter of the flow channel, which improves the control fault tolerance of the valve core 20, improves the reaction speed of the six-way valve 1, and speeds up the working mode switching speed of the six-way valve 1.

[0038] ​Continuing to refer to Figure 1 , the first flow channel 210 and the third flow channel 230 are symmetrically arranged about a first symmetry axis passing through the center of the valve core 20, and the second flow channel 220 and the fourth flow channel 240 are symmetrically arranged about a second symmetry axis passing through the center of the valve core 20.

[0039] Specifically, by symmetrically arranging the first flow channel 210 and the third flow channel 230, and symmetrically arranging the second flow channel 220 and the fourth flow channel 240, the valve core 20 offset or lag caused by the asymmetry of the flow channel is reduced, the control accuracy is improved, and the pressure difference on both sides of the valve core 20 is balanced when the valve core 20 operates, the reversing resistance is small, the response time is shortened, and the system stability is improved.

[0040] In other embodiments, only the first flow channel 210 and the third flow channel 230 are symmetrically arranged about the first symmetry axis passing through the center of the valve core 20, or only the second flow channel 220 and the fourth flow channel 240 are symmetrically arranged about the second symmetry axis passing through the center of the valve core 20.

[0041] Continuing to refer to Figure 1 , the second port 120 and the third port 130 are partially attached to the outer side wall, the fifth port 150 and the sixth port 160 are partially attached to the outer side wall, and the first port 110 is centrally arranged between the second port 120 and the sixth port 160, and the fourth port 140 is centrally arranged between the third port 130 and the fifth port 150.

[0042] Specifically, the second port 120 and the third port 130 are partially attached to the outer side wall, the fifth port 150 and the sixth port 160 are partially attached to the outer side wall, the distance between the second port 120 and the third port 130 is reduced, and the distance between the fifth port 150 and the sixth port 160 is reduced, the first port 110 is connected to the battery water pump, and the fourth port 140 is connected to the front motor water pump. The first port 110 is centrally arranged between the second port 120 and the sixth port 160, and the fourth port 140 is centrally arranged between the third port 130 and the fifth port 150, which facilitates the pipeline design of the external loop in the thermal management system.

[0043] In an embodiment, the six-way valve 1 further comprises a sealing layer (not shown) arranged on the inner side wall of the valve body 10. Specifically, the sealing layer is arranged on the inner side wall of the valve body 10, so that the flow channel of the unconnected port is kept in a sealed state after the valve core 20 rotates, and the sealing performance of the flow channel is improved.

[0044] Further, the sealing layer comprises a static sealing layer (not shown) and a dynamic sealing layer (not shown), the static sealing layer is arranged on the inner side wall of the valve body 10, and the dynamic sealing layer has wear resistance compared with the static sealing layer. The dynamic sealing layer is arranged on the side of the static sealing layer close to the valve core 20, i.e. the dynamic sealing layer is close to the valve core 20, so that the sealing performance is improved.

[0045] In one embodiment, the thickness of the sealing layer ranges from 1 mm to 1.5 mm. Specifically, the thickness of the sealing layer can be 1 mm, 1.2 mm, 1.3 mm, 1.4 mm, or 1.5 mm. It should be noted that this application does not limit the specific value of the sealing layer thickness.

[0046] In one embodiment, the material of the sealing layer includes at least one of polytetrafluoroethylene, ethylene propylene diene monomer (EPDM) rubber, silicone rubber, and polyurethane. That is, the material of the sealing layer includes one or more of polytetrafluoroethylene, EPDM rubber, silicone rubber, and polyurethane. The sealing layer may be only polytetrafluoroethylene or a mixture of polytetrafluoroethylene and EPDM rubber.

[0047] In one embodiment, the valve core 20 includes either a ball valve or a cylindrical valve. Specifically, the valve core 20 can be a ball valve, with a first flow channel 210 and a second flow channel 220 disposed within the ball valve. The ball valve rotates at different angles within the cavity 11 of the valve body 10 to achieve communication between different ports. Alternatively, the valve core 20 can be a cylindrical valve, with a first flow channel 210 and a second flow channel 220 disposed within the cylindrical valve. The cylindrical valve rotates at different angles within the cavity 11 of the valve body 10 to achieve communication between different ports.

[0048] In one embodiment, the six-way valve 1 further includes an actuator (not shown) that drives the valve core 20 to rotate relative to the valve body 10. Specifically, an electrical signal is applied to the actuator to control the rotation of the valve core 20, thereby achieving precise control of the rotation angle.

[0049] Furthermore, the driver can be a motor, such as a stepper motor or a servo motor, to achieve precise control of the rotation angle of the valve core 20.

[0050] This application also protects a vehicle that includes the six-way valve 1 as described in any of the above claims. The vehicle includes gasoline-powered vehicles, electric vehicles, hybrid vehicles, and hydrogen fuel cell vehicles, and also includes sedans, SUVs, and commercial vehicles, etc. It should be noted that this application does not limit the type of vehicle. The specific structure of the six-way valve 1 is as described above and will not be repeated here.

[0051] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A six-way valve characterized by, The six-way valve comprises: a valve body, which is internally formed with a cavity and externally provided with six ports arranged along the circumference of the valve body; a valve core, which is rotatably arranged in the cavity and provided with a first flow channel, a second flow channel, a third flow channel and a fourth flow channel intersecting and communicating with each other, when the valve core is rotated to different angles, one or two of the first flow channel and the second flow channel cooperate to communicate two of the ports, and one or two of the third flow channel and the fourth flow channel cooperate to communicate the other two ports.

2. The six-way valve of claim 1, wherein The first flow channel, the second flow channel, the third flow channel and the fourth flow channel are arc-shaped flow channels.

3. The six-way valve of claim 1, wherein The first flow channel and the third flow channel are symmetrically arranged about a first symmetry axis passing through the center of the valve core. The second flow channel and the fourth flow channel are symmetrically arranged about a second symmetry axis passing through the center of the valve core.

4. The six-way valve of claim 1, wherein The six ports comprise a first port, a second port, a third port, a fourth port, a fifth port and a sixth port arranged in sequence along the circumference of the valve body, wherein the second port and the third port are arranged in abutment with part of the outer side wall, the fifth port and the sixth port are arranged in abutment with part of the outer side wall, and the first port is arranged centrally between the second port and the sixth port, and the fourth port is arranged centrally between the third port and the fifth port.

5. The six-way valve of claim 1, wherein The six-way valve further comprises a sealing layer arranged on the inner side wall of the valve body.

6. The six-way valve of claim 5, wherein, The thickness of the sealing layer ranges from 1 mm to 1.5 mm.

7. The six-way valve of claim 5, wherein The material of the sealing layer comprises at least one of polytetrafluoroethylene, ethylene propylene diene rubber, silicone rubber and polyurethane.

8. The six-way valve of claim 1, wherein, The valve core comprises one of a ball valve and a cylindrical valve.

9. The six-way valve of claim 1, wherein, The six-way valve further comprises a driver for driving the valve core to rotate relative to the valve body.

10. A vehicle characterized by comprising: The six-way valve as claimed in any one of claims 1 to 9.

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