Three-way valve and vehicle thermal management system with same

Abstract

The utility model discloses a three-way valve and a vehicle thermal management system with the three-way valve, the three-way valve comprises a valve body and a valve core, the valve body comprises a valve body, a first valve pipe and a bypass pipe, the valve body is provided with a valve cavity, and a first valve port, a second valve port, a third valve port and a fourth valve port which are communicated with the valve cavity, the first valve port is communicated with the second valve port, the first valve pipe is communicated with the first valve port, one end of the bypass pipe is communicated with the second valve port, the other end of the bypass pipe is communicated with the first valve pipe, and the valve element is movably arranged in the valve cavity and used for switching the communication states of the first valve port, the second valve port, the third valve port and the fourth valve port. According to the three-way valve provided by the embodiment of the utility model, the bypass pipe is arranged on the valve body, so that the three-way valve has various communication states, is strong in functionality, can better control parameters such as the flowing direction, the flow rate and the pressure of liquid according to actual requirements, and is simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a three-way valve and a vehicle thermal management system having the same. Background Art

[0002] The existing proportional three-way valves on the market can only fix one inlet and outlet and proportionally adjust the remaining outlets. Therefore, the vehicle thermal management system often needs to add more valves to realize its structural functions. In order to reduce the use of valves in related technologies, the functionality of the valves is increased while the structure of the valves is often made more complicated, thereby increasing the cost of the valves. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a three-way valve, which has multiple connection states, simple structure and low cost.

[0004] Another object of the present utility model is to provide a vehicle thermal management system with a three-way valve.

[0005] The three-way valve according to the first aspect of the present invention includes: a valve body, the valve body includes a valve body, a first valve pipe and a bypass pipe, the valve body has a valve cavity and a first valve port, a second valve port, a third valve port and a fourth valve port connected to the valve cavity, the first valve pipe is connected to the first valve port, one end of the bypass pipe is connected to the second valve port, and the other end is connected to the first valve pipe; a valve core, the valve core is movably arranged in the valve cavity, and is used to switch the connection state between the first valve port, the second valve port, the third valve port and the fourth valve port.

[0006] According to the three-way valve of the embodiment of the utility model, a bypass pipe is arranged on the valve body, so that the three-way valve of the utility model has multiple connection states, has strong functionality, can better control the flow direction, flow rate and pressure of the liquid according to actual needs, and has a simple structure and is easy to operate.

[0007] In addition, the three-way valve according to the utility model also has the following additional technical features:

[0008] In some embodiments of the present invention, the first valve port, the second valve port, the third valve port and the fourth valve port are spaced apart from each other along the circumference of the valve body, and the valve core is rotatably disposed in the valve cavity.

[0009] In some embodiments of the present invention, the first valve port is opposite to the third valve port, and the fourth valve port is opposite to the second valve port.

[0010] In some embodiments of the present invention, a line connecting the center of the first valve port to the center of the third valve port is a first line, a line connecting the center of the second valve port to the center of the fourth valve port is a second line, and the first line, the second line and the rotation axis of the valve core are perpendicular to each other.

[0011] In some embodiments of the present invention, the valve body is an integrally formed injection molded part.

[0012] In some embodiments of the present invention, the valve core includes a valve core body, and the valve core body is a semi-cylinder.

[0013] In some embodiments of the present invention, the valve core also includes a first valve core cover and a second valve core cover located at both axial ends of the valve core body, and a sealed valve core flow channel is constructed between the first valve core cover, the second valve core cover, the valve core body and the valve body.

[0014] In some embodiments of the present invention, in the axial direction of the valve core, the first end of the valve core has a first rotating axis coaxial with the rotation axis of the valve core, and the second end of the valve core has a second rotating axis coaxial with the rotation axis of the valve core, the first rotating axis extends from the valve cavity to the outside of the valve cavity, and the valve body has a rotating groove that rotates with the second rotating axis.

[0015] In some embodiments of the present invention, the valve body also includes a valve cover. In the axial direction of the valve core, one end of the valve body has an installation port connected to the valve cavity. The valve cover is arranged at the installation port to close the valve cavity. The valve cover has a through hole allowing the first rotating shaft to extend out.

[0016] In some embodiments of the present invention, a plurality of protrusions are disposed on an end surface of the second end of the valve core, and the plurality of protrusions are evenly spaced apart around the second rotation axis.

[0017] In some embodiments of the present invention, the three-way valve further includes a driving member, and the driving member is drivingly connected to the valve core.

[0018] In some embodiments of the present invention, the three-way valve further includes a reducer, and the reducer is drivingly connected between the driving member and the valve core.

[0019] In some embodiments of the present invention, the three-way valve also includes a sealing member, which seals between the valve core and the valve body and has a first connecting port opposite to the first valve port, a second connecting port opposite to the second valve port, a third connecting port opposite to the third valve port, and a fourth connecting port opposite to the fourth valve port.

[0020] In some embodiments of the present invention, a first positioning portion is provided on the sealing member, and a second positioning portion that is positioned and matched with the first positioning portion is provided on the valve body.

[0021] The utility model also provides a vehicle thermal management system having the three-way valve of the above embodiment.

[0022] According to the vehicle thermal management system of the embodiment of the utility model, by using the three-way valve of the above embodiment, the flow direction of the liquid in the vehicle thermal management system can be better adjusted, and since the three-way valve of the present application has a strong regulating function, the application of the valve body can be reduced. At the same time, the three-way valve of the present application has a simple structure and low cost, which can further reduce the cost of the vehicle thermal management system.

[0023] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0025] Figure 1 1 is an exploded view of a three-way valve according to an embodiment of the utility model.

[0026] Figure 2 It is a structural schematic diagram of a valve core of a three-way valve according to an embodiment of the utility model.

[0027] Figure 3 It is a structural schematic diagram of a valve core of a three-way valve according to an embodiment of the utility model.

[0028] Figure 4 It is a structural schematic diagram of a sealing member of a three-way valve according to an embodiment of the utility model.

[0029] Figure 5 It is a structural schematic diagram of a three-way valve with a valve body and a valve cover removed according to an embodiment of the utility model.

[0030] Figure 6 It is a structural schematic diagram of a three-way valve with a valve body and a valve cover removed according to an embodiment of the utility model.

[0031] Figure 7 It is a schematic diagram of a connection state of a three-way valve according to an embodiment of the utility model.

[0032] Figure 8 It is a schematic diagram of a connection state of a three-way valve according to an embodiment of the utility model.

[0033] Fig. 9It is a schematic diagram of a connection state of a three-way valve according to an embodiment of the utility model.

[0034] Fig.10 It is a schematic diagram of a connection state of a three-way valve according to an embodiment of the utility model.

[0035] Fig.11 It is a schematic diagram of a connection state of a three-way valve according to an embodiment of the utility model.

[0036] Fig.12 It is a schematic diagram of a connection state of a three-way valve according to an embodiment of the utility model.

[0037] Reference numerals:

[0038] Three-way valve 100,

[0039] Valve body 1, valve body 11, first valve port 111, second valve port 112, third valve port 113, fourth valve port 114, mounting port 115, rotation groove 116,

[0040] The first valve pipe 12, the bypass pipe 13, the third valve pipe 14, the fourth valve pipe 15, the valve cover 16, the through hole 161,

[0041] Valve core 2, rotation axis X, valve core body 21, first valve core cover 22, second valve core cover 23, first rotation axis 24, second rotation axis 25, protrusion 26,

[0042] Drive 3,

[0043] The seal 4, the first communication port 41, the second communication port 42, the third communication port 43, the fourth communication port 44,

[0044] A first positioning portion 51 and a second positioning portion 52 . DETAILED DESCRIPTION

[0045] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0046] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0047] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0048] Reference below Figure 1-Figure 12 A three-way valve 100 according to an embodiment of the present invention is described.

[0049] like Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the three-way valve 100 according to the embodiment of the utility model includes a valve body 1 and a valve core 2, the valve body 1, the valve body 1 includes a valve body 11, a first valve pipe 12 and a bypass pipe 13, the valve body 11 has a valve cavity and a first valve port 111, a second valve port 112, a third valve port 113 and a fourth valve port 114 connected to the valve cavity, the first valve pipe 12 is connected to the first valve port 111, one end of the bypass pipe 13 is connected to the second valve port 112, and the other end is connected to the first valve pipe 12, the valve core 2 is movably arranged in the valve cavity, and is used to switch the connection state between the first valve port 111, the second valve port 112, the third valve port 113 and the fourth valve port 114.

[0050] In one example, the first valve tube 12 can be a liquid inlet tube, and the liquid entering the first valve tube 12 can enter the valve cavity from the first valve port 111, and then flow out from the third valve port 113, or flow out from the fourth valve port 114, or flow out from the third valve port 113 and the fourth valve port 114 at the same time. When the liquid flows out from the third valve port 113 and the fourth valve port 114 at the same time, the valve core 2 can adjust the ratio of the liquid flowing out from the third valve port 113 and the fourth valve port 114.

[0051] In one example, the first valve tube 12 can be a liquid inlet tube, and the liquid entering the first valve tube 12 can enter the valve cavity from the second valve port 112, and then flow out from the third valve port 113, or flow out from the fourth valve port 114, or flow out from the third valve port 113 and the fourth valve port 114 at the same time. When the liquid flows out from the third valve port 113 and the fourth valve port 114 at the same time, the valve core 2 can adjust the ratio of the liquid flowing out from the third valve port 113 and the fourth valve port 114.

[0052] In one example, the third valve port 113 can be a liquid inlet, and the liquid entering the third valve port 113 enters the valve cavity and can flow out from any one of the first valve port 111, the second valve port 112 and the fourth valve port 114. For example, the liquid flowing out from the first valve port 111 or the second valve port 112 can flow out from the first valve pipe 12; for example, the liquid entering from the third valve port 113 can flow out from the first valve port 111 and the fourth valve port 114, and the ratio of the liquid flowing out from the first valve port 111 and the fourth valve port 114 can be adjusted by the valve core 2; for example, the liquid entering from the third valve port 113 can flow out from the second valve port 112 and the fourth valve port 114, and the ratio of the liquid flowing out from the second valve port 112 and the fourth valve port 114 can be adjusted by the valve core 2.

[0053] In one example, the fourth valve port 114 can be a liquid inlet, and the liquid entering the fourth valve port 114 enters the valve cavity and can flow out from any one of the first valve port 111, the second valve port 112 and the third valve port 113. For example, the liquid flowing out from the first valve port 111 or the second valve port 112 can flow out from the first valve pipe 12; for example, the liquid entering from the fourth valve port 114 can flow out from the first valve port 111 and the third valve port 113, and the ratio of the liquid flowing out from the first valve port 111 and the third valve port 113 can be adjusted by the valve core 2; for example, the liquid entering from the fourth valve port 114 can flow out from the second valve port 112 and the third valve port 113, and the ratio of the liquid flowing out from the second valve port 112 and the third valve port 113 can be adjusted by the valve core 2.

[0054] Therefore, according to the three-way valve 100 of the embodiment of the utility model, by setting the bypass pipe 13 on the valve body 1, the three-way valve 100 of the utility model has multiple connection states, strong functionality, can better control the flow direction, flow rate and pressure of the liquid according to actual needs, and has a simple structure and is easy to operate.

[0055] Optionally, the valve core 2 may be rotatably disposed in the valve cavity, may be slidably disposed in the valve cavity, or may be both rotatably and slidably disposed in the valve cavity, and the present application does not impose any limitation thereto.

[0056] In some embodiments of the present invention, Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, the first valve port 111 , the second valve port 112 , the third valve port 113 and the fourth valve port 114 are arranged at intervals along the circumference of the valve body 11 , and the valve core 2 is rotatably arranged in the valve cavity.

[0057] like Figure 1 , Figure 5 , Figure 6 and Figure 7 In a specific example shown, the first valve port 111, the second valve port 112, the third valve port 113 and the fourth valve port 114 are all circular. The circular valve ports have a better flow area. The first valve port 111, the second valve port 112, the third valve port 113 and the fourth valve port 114 are evenly spaced apart along the circumference of the valve body 11. Therefore, the connectivity state of the three-way valve 100 can be better controlled by rotating the valve core 2, which is simple and convenient to operate.

[0058] Alternatively, if Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, in the axial direction of the valve core 2, the first valve port 111, the second valve port 112, the third valve port 113 and the fourth valve port 114 can be at the same liquid level height, or at different liquid level heights respectively. The specific settings can be based on actual needs and are not limited in this application.

[0059] Alternatively, if Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, the first valve port 111 is opposite to the third valve port 113, and the fourth valve port 114 is opposite to the second valve port 112. Therefore, by relatively arranging the valve ports, the liquid can flexibly switch the flow direction between the first valve port 111 and the fourth valve port 114, so as to realize the functions of liquid diversion, confluence or reversal; in addition, the relatively arranged valve ports can make the overall structure of the three-way valve 100 more compact and save installation space, especially when the pipeline system is deployed in a limited space, it can effectively improve the space utilization rate; and the relatively arranged valve ports simplify the internal structure of the valve, which is beneficial to the maintenance and cleaning of the valve to a certain extent. In some cases, the replacement and maintenance of some parts will also be more convenient; moreover, the relatively arranged valve ports can better reduce the fluid resistance, improve the system efficiency, and maintain the balance and stability of the system.

[0060] In some embodiments of the utility model, the line from the center of the first valve port 111 to the center of the third valve port 113 is the first line, the line from the center of the second valve port 112 to the center of the fourth valve port 114 is the second line, and the first line, the second line and the rotation axis of the valve core 2 are perpendicular to each other. That is to say, in the axial direction of the valve core 2, the first valve port 111 to the fourth valve port 114 are at the same liquid horizontal height, thereby reducing the pressure difference between each valve port, which is conducive to maintaining the stability of fluid flow and avoiding additional pressure drop and kinetic energy loss caused by the height difference; in addition, the same height is conducive to ensuring the uniform distribution of fluid between each branch, especially in the parallel or series system, the flow distribution can be controlled more accurately to achieve synchronous or proportional control; and in the liquid system, the same height of the valve ports can reduce the possibility of air accumulation inside the valve body 1, because the liquid is not easy to entrain gas when the liquid flows horizontally, so that cavitation and unstable flow can be better avoided.

[0061] Further integration Figure 1 , Figure 5 , Figure 6 and Figure 7 In a specific example shown in FIG. 1 , the valve core 2 includes a valve core body 21, and the valve core body 21 is a semi-cylindrical body. Figure 5 As shown, the valve body 1 further includes a third valve pipe 14 and a fourth valve pipe 15. The third valve pipe 14 is located at the third valve port 113, and the fourth valve pipe 15 is located at the fourth valve port 114. Liquid can enter the valve cavity from the fourth valve pipe 15 and, after being adjusted by the valve core 2, Figure 7 In the first connection state shown, liquid can flow out from the first valve port 111 and the third valve port 113 in proportion; Figure 8 In the second communication state shown, liquid can flow out from the third valve port 113; Fig. 9 In the third communication state shown, liquid can flow out from the first valve port 111 .

[0062] For example, in Fig.10 In the state shown, the valve core 2 can also make the first valve port 111, the third valve port 113 and the fourth valve port 114 not communicate with each other.

[0063] For example, in Fig.11 In the state shown, the liquid can enter the valve chamber from the third valve port 113 , then enter the bypass pipe 13 through the second valve port 112 , and then flow out of the first valve pipe 12 through the bypass pipe 13 .

[0064] For example, in Fig.12 In the state shown, liquid can enter the valve chamber from the third valve port 113 , and then the valve core 2 can proportionally adjust the flow of the second valve port 112 and the fourth valve port 114 , and the liquid entering the bypass pipe 13 through the second valve port 112 can flow out from the first valve pipe 12 .

[0065] In some embodiments of the utility model, the valve body 1 is an integrally formed injection molded part, and thus the valve body 1 has high structural strength, good pressure resistance and impact resistance, and is not prone to rupture or deformation. In addition, since it is integrally formed, there is no splicing gap inside the valve body 1, which can effectively prevent liquid leakage and has good sealing. Furthermore, the one-piece molding has a fast production speed, can greatly reduce costs and improve production efficiency, and has diversified processing. For example, injection molding can use various plastic materials, such as PP, PVC, PVDF, PE, nylon, etc., and suitable materials can be selected according to actual working conditions and liquid properties, such as corrosion resistance, high temperature resistance, low temperature resistance, good insulation performance, etc. Moreover, during the injection molding process, each product is precisely formed according to the mold, and the product quality consistency is high, and the dimensional accuracy and surface quality are stable.

[0066] In some embodiments of the present invention, Figure 1-Figure 3 As shown, the valve core 2 includes a valve core body 21, and the valve core body 21 is semi-cylindrical. When the semi-cylindrical valve core 2 rotates or moves, the opening formed by contact with the inner wall of the valve body 11 can continuously change from a fully closed state to a fully open state, ensuring that the fluid flow path is relatively smooth, reducing resistance loss, and facilitating rapid switching and precise flow control. In addition, the semi-cylindrical valve core 2 forms a line seal by cooperating with the valve body 11, which can obtain a better sealing effect under a certain pressure and reduce the risk of leakage. Furthermore, due to the small contact area between the semi-cylindrical valve core 2 and the valve seat, the required opening and closing torque is usually smaller than other types of valves of the same caliber, which is convenient for operation and the design of the drive mechanism.

[0067] Alternatively, if Figure 1-Figure 3As shown, the valve core 2 also includes a first valve core cover 22 and a second valve core cover 23 located at the axial ends of the valve core body 21, and a sealed valve core 2 flow channel is constructed between the first valve core cover 22, the second valve core cover 23, the valve core body 21 and the valve body 11. That is to say, the first valve core cover 22 and the second valve core cover 23 can better cooperate with the valve body 11 to seal the valve core 2 flow channel in the axial direction of the valve core 2. In this way, the flow direction of the liquid can be better controlled when the valve core 2 rotates.

[0068] In some embodiments of the present invention, Figure 1-Figure 3 As shown, in the axial direction of the valve core 2, the first end of the valve core 2 has a first rotating shaft 24 coaxial with the rotating axis of the valve core 2, the second end of the valve core 2 has a second rotating shaft 25 coaxial with the rotating axis of the valve core 2, the first rotating shaft 24 extends from the valve cavity to the outside of the valve cavity, and the valve body 11 has a rotating groove 116 that rotates with the second rotating shaft 25. In other words, through the cooperation of the second rotating shaft 25 and the rotating groove 116, the stability of the valve core 2 during rotation can be better, thereby improving the controllability of the valve core 2, and the first rotating shaft 24 extends outside the valve body 1, so that the valve core 2 can be better controlled by the first rotating shaft 24 outside the valve body 1, and the operation is simple and convenient.

[0069] In some embodiments of the present invention, Figure 1 and Figure 6 As shown, the valve body 1 also includes a valve cover 16. In the axial direction of the valve core 2, one end of the valve body 11 has an installation port 115 connected to the valve cavity. The valve cover 16 is set at the installation port 115 to close the valve cavity. The valve cover 16 has a through hole 161 that allows the first rotating shaft 24 to extend. In other words, the valve core 2 can be installed in the valve cavity from the installation port 115, and the installation is simple and convenient. The valve core 2 has a second rotating shaft 25 that is positioned and matched with the rotating groove 116 of the valve body 11, which can further reduce the difficulty of assembly. After the valve core 2 is installed in the valve cavity, it can be set at the installation port 115 through the valve cover 16, so as to improve the sealing performance of the three-way valve 100. Optionally, the valve cover 16 can be fixedly connected to the valve body 11 by welding, or by plugging, clamping, etc., which is not limited in this application.

[0070] In some embodiments of the present invention, Figure 3 As shown, the end face of the second end of the valve core 2 is provided with a plurality of protrusions 26, and the plurality of protrusions 26 are evenly spaced around the second rotating shaft 25. Thus, by providing a plurality of protrusions 26 on the end face of the second end of the valve core 2, the contact area between the valve core 2 and the valve body 11 can be reduced, so that the valve core 2 and the valve body 11 are not easily worn against each other, and when the valve core 2 is rotated, the friction between the valve core 2 and the valve body 11 is small, so that the valve core 2 is easy to control.

[0071] In some embodiments of the present invention, Figure 1 As shown, the three-way valve 100 also includes a driving member 3, which is transmission-connected to the valve core 2, thereby improving the control accuracy of the three-way valve 100, so that different connection states of the three-way valve 100 can be better controlled according to actual needs.

[0072] In some embodiments of the utility model, the three-way valve 100 also includes a reducer, which is transmission-connected between the drive member 3 and the valve core 2, thereby further improving the controllable accuracy of the three-way valve 100. In addition, by setting the reducer, the torque can be increased to ensure that the three-way valve 100 can reliably switch between different flow states.

[0073] In some embodiments of the present invention, Figure 1 and Figure 4 As shown, the three-way valve 100 further includes a sealing member 4, which is sealed between the valve core 2 and the valve body 11, and has a first communication port 41 opposite to the first valve port 111, a second communication port 42 opposite to the second valve port 112, a third communication port 43 opposite to the third valve port 113, and a fourth communication port 44 opposite to the fourth valve port 114. Thus, the sealing performance between the valve core 2 and the valve body 11 can be improved to avoid liquid leakage. In addition, the sealing member 4 is arranged between the valve core 2 and the valve body 11, which can also better reduce the mutual wear between the valve core 2 and the valve body 11, and can improve the service life of the three-way valve 100.

[0074] Alternatively, if Figure 1 , Figure 4 and Figure 6 As shown, a first positioning portion 51 is provided on the seal 4, and a second positioning portion 52 that is positioned and matched with the first positioning portion 51 is provided on the valve body 11. For example, a positioning protrusion 26 can be provided on the seal 4, and a positioning groove that is matched with the positioning protrusion 26 can be provided on the valve body 11. The number of positioning protrusions 26 and positioning grooves can be multiple, and this application does not impose any restrictions.

[0075] The utility model also provides a vehicle thermal management system having the three-way valve 100 of the above embodiment.

[0076] According to the vehicle thermal management system of the embodiment of the utility model, by using the three-way valve 100 of the above embodiment, the flow direction of the liquid in the vehicle thermal management system can be better adjusted, and since the three-way valve 100 of the present application has a strong adjustment function, the application of the valve body 1 can be reduced. At the same time, the three-way valve 100 of the present application has a simple structure and low cost, which can further reduce the cost of the vehicle thermal management system.

[0077] Other structures and operations of the vehicle thermal management system and the three-way valve 100 according to the embodiment of the utility model are known to those skilled in the art and will not be described in detail here.

[0078] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0079] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A three-way valve, characterized in that: include: A valve body, the valve body comprising a valve main body, a first valve pipe and a bypass pipe, the valve main body having a valve cavity and a first valve port, a second valve port, a third valve port and a fourth valve port connected to the valve cavity, the first valve pipe being connected to the first valve port, one end of the bypass pipe being connected to the second valve port, and the other end being connected to the first valve pipe; A valve core is movably arranged in the valve cavity and is used to switch the communication state between the first valve port, the second valve port, the third valve port and the fourth valve port.

2. The three-way valve according to claim 1, characterized in that: The first valve port, the second valve port, the third valve port and the fourth valve port are arranged at intervals along the circumference of the valve body, and the valve core is rotatably arranged in the valve cavity.

3. The three-way valve according to claim 2, characterized in that: The first valve port is opposite to the third valve port, and the fourth valve port is opposite to the second valve port.

4. The three-way valve according to claim 3, characterized in that: A line connecting the center of the first valve port to the center of the third valve port is a first line, a line connecting the center of the second valve port to the center of the fourth valve port is a second line, and the first line, the second line and the rotation axis of the valve core are perpendicular to each other.

5. The three-way valve according to any one of claims 1 to 4, characterized in that: The valve body is an integrally formed injection molded part.

6. The three-way valve according to any one of claims 2 to 4, characterized in that: The valve core comprises a valve core body, and the valve core body is a semi-cylinder.

7. The three-way valve according to claim 6, characterized in that: The valve core further comprises a first valve core cover and a second valve core cover located at two axial ends of the valve core body, and a sealed valve core flow channel is constructed between the first valve core cover, the second valve core cover, the valve core body and the valve body.

8. The three-way valve according to claim 2, characterized in that: In the axial direction of the valve core, the first end of the valve core has a first rotating axis coaxial with the rotation axis of the valve core, and the second end of the valve core has a second rotating axis coaxial with the rotation axis of the valve core, the first rotating axis extends from the valve cavity to the outside of the valve cavity, and the valve body has a rotating groove that rotates with the second rotating axis.

9. The three-way valve according to claim 8, characterized in that: The valve body also includes a valve cover. In the axial direction of the valve core, one end of the valve body has a mounting port connected to the valve cavity. The valve cover is arranged at the mounting port to close the valve cavity. The valve cover has a through hole allowing the first rotating shaft to extend out.

10. The three-way valve according to claim 8, characterized in that: The end surface of the second end of the valve core is provided with a plurality of protrusions, and the plurality of protrusions are evenly spaced and arranged around the second rotation axis.

11. The three-way valve according to claim 1, characterized in that: It also includes a driving member, which is drivingly connected to the valve core.

12. The three-way valve according to claim 11, characterized in that: It also includes a reducer, which is transmission-connected between the drive member and the valve core.

13. The three-way valve according to claim 1, characterized in that: It also includes a sealing member, which seals between the valve core and the valve body and has a first connecting port opposite to the first valve port, a second connecting port opposite to the second valve port, a third connecting port opposite to the third valve port, and a fourth connecting port opposite to the fourth valve port.

14. The three-way valve according to claim 13, characterized in that: The sealing member is provided with a first positioning portion, and the valve body is provided with a second positioning portion which is positioned and matched with the first positioning portion.

15. A vehicle thermal management system, characterized in that: A three-way valve comprising any one of claims 1-14.

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