Three-way valve and whole vehicle thermal management device adopting three-way valve

Abstract

The utility model provides a three-way valve and a whole vehicle thermal management device adopting the three-way valve, the three-way valve comprises a valve body, a valve core, a first fluid channel, a second fluid channel and a third fluid channel, the valve body is internally provided with a valve cavity, and the valve core is rotatably arranged in the valve cavity; one end of the valve core shaft is fixed on the valve core, and the other end of the valve core shaft penetrates out of the valve body; the fixing frame is located in the valve cavity and arranged outside the valve element in a sleeving mode, at least three flow passing openings are formed in the circumferential direction of the fixing frame at intervals, and the three flow passing openings are opposite to first end openings of the first fluid channel, the second fluid channel and the third fluid channel correspondingly; a plurality of sealing rings, wherein the corresponding sealing ring is nested in each overflowing opening; the first fluid channel, the second fluid channel and the third fluid channel are controlled to be communicated with or disconnected from the communication channel through rotation of the valve element. Compared with the prior art, the valve core adopts a column valve structure, and only a sealing element is used at a pipe orifice accessory, so that the requirement on the rotating torque of the valve core is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the fluid control technical field of new energy automobile, especially a three-way valve and a whole vehicle thermal management device using the three-way valve. BACKGROUND

[0002] With the continuous development of new energy vehicle market, the whole vehicle thermal management technology is becoming more and more mature, and it is constantly required that each part in the thermal management system develops in the direction of integration. Face sealing fluid control valve not only can compress the use space, reduce the cost, but also can accurately distribute the flow of coolant in each system of the whole vehicle to adjust the temperature in each system of the whole vehicle. The specific technology has been disclosed in the patents with the application publication numbers CN114962722A and CN117780980A.

[0003] However, the technical solutions of the above two patents have the following problems and defects:

[0004] 1. The valve core is a spherical structure, and the parts are difficult to assemble;

[0005] 2. The sealing element is a cladding structure that wraps the valve core, which is not conducive to the rotation of the valve core and requires higher rotation torque.

[0006] Therefore, it is necessary to propose an improved technical solution to solve the above problems. CONTENT OF THE UTILITY MODEL

[0007] One of the purposes of the utility model is to provide a three-way valve and a whole vehicle thermal management device using the three-way valve, which uses a column valve structure for the valve core, and only uses a sealing element near the pipe opening, thereby reducing the rotation torque requirement of the valve core.

[0008] According to one aspect of the present application, the present application provides a tee valve, which comprises: a valve body, which defines a valve cavity, a first fluid passage, a second fluid passage and a third fluid passage therein, first ports of the first fluid passage, the second fluid passage and the third fluid passage are communicated with the valve cavity respectively, second ports of the first fluid passage, the second fluid passage and the third fluid passage are arranged on the outside of the valve body; a valve core, which is rotatably installed in the valve cavity, the valve core is a columnar structure, the valve core comprises a sealing part and a communication passage arranged along the circumference thereof; a valve core shaft, one end of which is fixed on the valve core and the other end of which penetrates out of the valve body, the valve core shaft can drive the valve core to rotate synchronously when the valve core shaft rotates; a fixing frame, which is located in the valve cavity and is sleeved on the outside of the valve core, at least three flow ports are arranged along the circumference of the fixing frame at intervals, wherein the three flow ports are opposite to the first ports of the first fluid passage, the second fluid passage and the third fluid passage respectively; a plurality of sealing rings, each of the flow ports is nested with a corresponding sealing ring, the front surface of the sealing ring abuts against the inner wall of the valve cavity, and the back surface of the sealing ring can abut against the sealing part when the valve core rotates; the rotation of the valve core makes the sealing part and the communication passage of the valve core rotate relative to the fixing frame and the valve cavity, so as to control the communication or disconnection between the first ports of the first fluid passage, the second fluid passage and the third fluid passage and the communication passage of the valve core.

[0009] According to another aspect of the present application, the present application provides a whole vehicle thermal management device, which comprises a tee valve provided by the present application, the tee valve is used for accurately distributing the flow of cooling liquid in the whole vehicle system, so as to adjust the temperature in each system of the whole vehicle.

[0010] Compared with the prior art, the present application is suitable for a whole vehicle thermal management integrated system, the valve core adopts a column valve structure, and only a sealing element is used near the pipe opening, so that the rotation torque requirement of the valve core is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art. Among them:

[0012] Figure 1 It is a front view of the tee valve in one embodiment of the present application;

[0013] Figure 2 It is a partial longitudinal sectional view of the tee valve in one embodiment of the present application as shown in Figure 1 ​

[0014] Figure 3 In one embodiment of this utility model, as shown Figure 1 The exploded view of the three-way valve shown;

[0015] Figure 4 In one embodiment of this utility model, as Figure 3 The diagram shows a three-dimensional view of the valve body.

[0016] Figure 5 In one embodiment of this utility model, as Figure 3 A three-dimensional view of the valve core and valve core shaft shown;

[0017] Figure 6 In one embodiment of this utility model, as shown Figure 3 A three-dimensional view of the mounting bracket shown;

[0018] Figure 7 In one embodiment of this utility model, as Figure 3 The front view of the sealing ring shown;

[0019] Figure 8 In one embodiment of this utility model, as shown Figure 3 Side view of the sealing ring shown;

[0020] Figure 9 In one embodiment of this utility model, as shown Figure 3 A three-dimensional view of the sealing ring bracket shown;

[0021] Figure 10 In one embodiment of this utility model, as shown Figures 1-3 The diagram shows a partial cross-sectional view of the three-way valve in its first operating mode.

[0022] Figure 11 In one embodiment of this utility model, as Figures 1-3 The diagram shows a partial cross-sectional view of the three-way valve in its second operating mode.

[0023] Figure 12 In one embodiment of this utility model, as Figures 1-3 The diagram shows a partial cross-sectional view of the three-way valve in its third operating mode.

[0024] Figure 13 In another embodiment of this utility model, such as Figure 1 The exploded view of the three-way valve shown.

Detailed Implementation Methods

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] As used herein, an "embodiment" or "embodiments" means an implementation or instantiation of at least one of the implementations of the present embodiments. "In one embodiment," as used herein does not necessarily refer to the same embodiment, although it may. "In another embodiment" means "in at least one other embodiment." As used herein, the terms "coupled," "connected," "attached," or "connected" mean electrically connected, unless otherwise indicated. For example, A and B are connected means that A and B are either directly connected or electrically connected via a device or circuit.

[0027] In the description of the present embodiments, it is to be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "right", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present embodiments and simplify the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present embodiments.

[0028] Referring to FIG. 1, which is a front view of a three-way valve in an embodiment of the present embodiments, and FIG. 2, which is a partial longitudinal sectional view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 1, the three-way valve comprises a valve body 110, a valve core 120, a valve core shaft 130, a fixing frame 140, and a plurality of sealing rings 150. Figure 1 Referring to FIG. 3, which is an exploded view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 1, and FIG. 4, which is a perspective view of the valve body in the embodiment of the present embodiments as shown in FIG. 1, the three-way valve comprises a valve body 110, a valve core 120, a valve core shaft 130, a fixing frame 140, and a plurality of sealing rings 150. Figure 2 Referring to FIG. 5, which is a partial longitudinal sectional view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 1, and FIG. 6, which is a partial longitudinal sectional view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 1, the three-way valve comprises a valve body 110, a valve core 120, a valve core shaft 130, a fixing frame 140, and a plurality of sealing rings 150. Figure 1 Referring to FIG. 7, which is a partial longitudinal sectional view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 1, and FIG. 8, which is a partial longitudinal sectional view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 1, the three-way valve comprises a valve body 110, a valve core 120, a valve core shaft 130, a fixing frame 140, and a plurality of sealing rings 150. Figure 3 Referring to FIG. 9, which is a partial longitudinal sectional view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 1, and FIG. 10, which is a partial longitudinal sectional view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 1, the three-way valve comprises a valve body 110, a valve core 120, a valve core shaft 130, a fixing frame 140, and a plurality of sealing rings 150. Figure 1 Referring to FIG. 11, which is an exploded view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 1, and FIG. 12, which is a perspective view of the valve body in the embodiment of the present embodiments as shown in FIG. 1, the three-way valve comprises a valve body 110, a valve core 120, a valve core shaft 130, a fixing frame 140, and a plurality of sealing rings 150. Figures 1-3 Referring to FIG. 13, which is a partial longitudinal sectional view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 1, and FIG. 14, which is a partial longitudinal sectional view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 1, the three-way valve comprises a valve body 110, a valve core 120, a valve core shaft 130, a fixing frame 140, and a plurality of sealing rings 150.

[0029] Referring to FIG. 15, which is a front view of a three-way valve in an embodiment of the present embodiments, and FIG. 16, which is a partial longitudinal sectional view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 15, the three-way valve comprises a valve body 110, a valve core 120, a valve core shaft 130, a fixing frame 140, and a plurality of sealing rings 150. Figure 4 Referring to FIG. 17, which is an exploded view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 15, and FIG. 18, which is a perspective view of the valve body in the embodiment of the present embodiments as shown in FIG. 15, the three-way valve comprises a valve body 110, a valve core 120, a valve core shaft 130, a fixing frame 140, and a plurality of sealing rings 150. Figure 3 Referring to FIG. 19, which is a partial longitudinal sectional view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 15, and FIG. 20, which is a partial longitudinal sectional view of the three-way valve in the embodiment of the present embodiments as shown in FIG. 15, the three-way valve comprises a valve body 110, a valve core 120, a valve core shaft 130, a fixing frame 140, and a plurality of sealing rings 150. Figure 4 In the description of the present embodiments, it is to be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "front", "back", "right", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are merely intended to facilitate the description of the present embodiments and simplify the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present embodiments.

[0030] Figure 4 ​In the specific embodiment shown, the valve body 110 further comprises a mounting plate 115 arranged on one side of the valve body 110, and the first fluid passage 112, the second fluid passage 113 and the second ports b1, b2 and b3 of the third fluid passage 114 are arranged in parallel on the mounting plate 115. The valve body 110 further comprises four bushings 116 arranged at four corners of the mounting plate 115. The mounting plate 115 can be connected with other components in the fluid control device through the bushings 116. In a preferred embodiment, the bushings 116 and the valve body 110 are integrally injection molded.

[0031] When the mounting plate 115 is connected with other components in the fluid control device, in order to improve the sealing performance, the mounting plate 115 is arranged with a mounting groove (or sealing groove) 1152 on the side surface thereof arranged with the second ports b1, b2 and b3, and the mounting groove 1152 surrounds the outside of the second ports b1, b2 and b3. Figure 4 In the specific embodiment shown, the mounting plate 115 is arranged with a mounting groove (or sealing groove) 1152 on the side surface thereof arranged with the second ports b1, b2 and b3, and the mounting groove 1152 surrounds the outside of the second ports b1, b2 and b3. Figures 1-3 The three-way valve shown further comprises a sealing gasket 160 having three connecting ports 162 penetrating through the sealing gasket 160. When the sealing gasket 160 is embedded in the groove 1152 of the mounting plate 115, the sealing gasket 160 is in close contact and sealing connection with the mounting plate 115, and the three connecting ports 162 are opposite to and in communication with the second ports b1, b2 and b3 of the first fluid passage 112, the second fluid passage 113 and the third fluid passage 114, respectively. That is, the mounting groove (or sealing groove) 1152 at the bottom of the mounting plate 115 is used for assembling the sealing gasket 160 and connecting with the external user end to realize sealing.

[0032] Please refer to Figure 5 As shown in the embodiment of the utility model, Figure 3 As shown in the embodiment of the utility model, Figure 2 、 Figure 3 and Figure 5 As shown in the embodiment of the utility model,

[0033] In the specific embodiment shown in Figure 4 and Figure 5 In the specific embodiment shown, the valve body 110 further comprises a mounting plate 115 arranged on one side of the valve body 110, and the first fluid passage 112, the second fluid passage 113 and the second ports b1, b2 and b3 of the third fluid passage 114 are arranged in parallel on the mounting plate 115. The valve body 110 further comprises four bushings 116 arranged at four corners of the mounting plate 115. The mounting plate 115 can be connected with other components in the fluid control device through the bushings 116. In a preferred embodiment, the bushings 116 and the valve body 110 are integrally injection molded.

[0034] Figures 1-3The three-way valve also comprises an actuator 170 fixedly connected with the valve body 110, and the actuator 170 is drivingly connected with the valve core shaft 130, and the actuator 170 is used for driving the valve core shaft 130 to rotate. Figure 5 In the illustrated embodiment, the top of the valve core shaft 130 is provided with a spline 132 which cooperates with a spline groove (not shown) of an output gear of the actuator 170 to transmit torque.

[0035] When the actuator 170 is drivingly connected with the valve core shaft 130, in order to improve the sealing performance, the valve body 110 is provided with a plurality of mounting columns 118 adjacent to one side surface of the actuator 170. Figures 1-3 In the illustrated embodiment, an X-shaped sealing ring 134 is sleeved on the spline 132 of the valve core shaft 130.

[0036] Please refer to Figure 6 The utility model discloses a three-way valve as shown in the figure. Figure 3 The utility model discloses a three-way valve as shown in the figure. Figure 1 、 Figure 2 、 Figure 3 and Figure 5 As shown in the figures, the fixing frame 140 is located in the valve cavity 120 and is sleeved on the valve core 120, and at least three flow ports 142 are arranged along the circumference of the fixing frame 140, wherein the three flow ports 142 are respectively opposite to the first port a1, the second port a2 and the third port a3 of the first fluid channel 112, the second fluid channel 113 and the third fluid channel 114.

[0037] As shown in the figures, a corresponding sealing ring 150 is embedded in each flow port 142. Figure 2 and Figure 3 As shown in the figures, a corresponding sealing ring 150 is embedded in each flow port 142. Figure 7 The utility model discloses a three-way valve as shown in the figure. Figure 3 The utility model discloses a three-way valve as shown in the figure. Figure 8 The utility model discloses a three-way valve as shown in the figure. Figure 3 The utility model discloses a three-way valve as shown in the figure. Figure 2 、 Figure 3 、 Figure 7 and Figure 8 As shown in the figures, the front surface 152 of the sealing ring 150 is in abutment with the inner wall of the valve cavity 111, and the back surface 154 of the sealing ring 150 can be in abutment with the sealing part 122 when the valve core 120 rotates. Figure 7 and Figure 8 In the illustrated embodiment, the front surface 152 of the sealing ring 150 is provided with a plurality of sealing ribs 159.

[0038] In the illustrated embodiment, the front surface 152 of the sealing ring 150 is provided with a plurality of sealing ribs 159. Figure 6In the shown specific embodiment, the four flow ports 142 are symmetrically distributed along the circumference of the fixed frame 140, and the outer edge of the flow port 142 (i.e. the side edge of the flow port 142 adjacent to the inner wall of the valve cavity 120) is arranged with a sealing groove 144 for placing a corresponding sealing ring 150.

[0039] In Figure 7 and Figure 8 In the shown specific embodiment, the upper and lower edges of the radially outer edge of the sealing ring 150 are each provided with an installation boss 156; in Figure 6 In the shown specific embodiment, the upper and lower edges of the radially outer edge of the sealing ring 150 are each provided with an installation boss 156; in

[0040] Figures 1-3 The three-way valve further comprises a plurality of sealing ring supports 180, each of the sealing rings 150 is nested with a corresponding sealing ring support 180, and the sealing ring support 180 is used for supporting the sealing ring 150. Please refer to Figure 9 Figure 3 The shown is a perspective view of the sealing ring support in an embodiment of the present application, and the upper and lower edges of the radially outer edge of the sealing ring support 180 are each provided with an installation boss 182; in Figure 7 and Figure 8 In the shown specific embodiment, the upper and lower edges of the radially outer edge of the sealing ring 150 are each provided with an installation boss 156; in

[0041] In summary, Figures 1-3 The shown three-way valve controls the communication or disconnection between the first port a1, a2, a3 of the first fluid passage 112, the second fluid passage 113 and the third fluid passage 114 and the communication passage 124 of the valve core 120 by rotating the valve core 120 to make the sealing part 122 and the communication passage 124 of the valve core 120 rotate relative to the fixed frame 140 and the valve cavity 111.

[0042] In order to facilitate understanding of the present application, the following will specifically introduce Figures 1-3 ​The working principle of the three-way valve is shown. Among them, the first fluid passage 112 is an inflow passage, and the second fluid passage 113 and the third fluid passage 114 are outflow passages. The actuator 170 is controlled by the whole vehicle, and the valve core 120 is rotated to the specified position to adjust the cooling liquid flow direction, so as to realize three working modes.

[0043] The first working mode is as follows: Figure 10 As shown in the figure, in one embodiment of the utility model Figures 1-3 The three-way valve in the first working mode is shown in the partial cross-sectional view. Specifically, when the valve core 120 is rotated to the first position (at this time, the valve core 120 is at the initial position of 0%), the sealing part 122 of the valve core 120 cooperates with the sealing ring 150 at the overflow port 142 corresponding to the third fluid passage 114, so as to completely disconnect the third fluid passage 114 and the communication passage 124 of the valve core 120, and set the communication ratio of the second fluid passage 113 and the communication passage 124 of the valve core 120 to 100%. At this time, the second fluid passage 113 is communicated with the first fluid passage 112 through the communication passage 124 of the valve core 120. That is to say, when the three-way valve provided by the utility model is in the first working mode, only the second fluid passage 113 and the first fluid passage 112 are communicated through the communication passage 124 of the valve core 120, the reverse side 154 of the sealing ring 150 at the first port a3 of the third fluid passage 114 is completely contacted and extruded with the sealing part 122 of the valve core 120, that is, the cooling liquid enters the first fluid passage 112 from the second port b1 of the first fluid passage 112, enters the valve cavity 111 through the overflow port 142 of the fixed frame 140, is guided through the communication passage 124 of the valve core 120, and flows out from the second port b2 of the second fluid passage 113. The flow rate of the second port b3 of the third fluid passage 114 is 0.

[0044] The third working mode is as follows: Figure 12 As shown in the figure, in one embodiment of the utility model Figures 1-3The partial cross-sectional view of the three-way valve in the third working mode is shown. Specifically, when the valve core 120 rotates to the third position (at this time, the valve core 120 is at 100% position), the sealing part 122 of the valve core 120 cooperates with the sealing ring 150 at the flow port 142 corresponding to the second fluid channel 113, thereby completely disconnecting the second fluid channel 113 from the communication channel 124 of the valve core 120, setting the communication rate of the third fluid channel 114 and the communication channel 124 of the valve core 120 to 100%, at this time, the third fluid channel 114 communicates with the first fluid channel 112 through the communication channel 124 of the valve core 120. That is, when the three-way valve provided by the utility model is in the third working mode, only the third fluid channel 114 and the first fluid channel 112 are communicated through the communication channel 124 of the valve core 120, the reverse side 154 of the sealing ring 150 at the first port a2 of the second fluid channel 113 is in complete contact and extrusion with the sealing part 122 of the valve core 120, that is, the cooling liquid enters the first fluid channel 112 from the second port b1 of the first fluid channel 112, enters the valve cavity 111 through the flow port 142 of the fixed frame 140, is guided through the communication channel 124 of the valve core 120, and flows out from the second port b3 of the third fluid channel 114, and the flow rate of the second port b3 of the second fluid channel 113 is 0.

[0045] The second working mode is as follows: Figure 11 The three-way valve in the third working mode is shown. Figures 1-3The partial cross-sectional view of the three-way valve in the second working mode is shown. Specifically, when the valve core 120 is rotated to the second position, that is, when the valve core 120 is rotated to a position between the first position and the third position (at this time, the valve core 120 is in a position between 0% and 100%), the sealing part 122 of the valve core 120 cooperates with the sealing ring 150 at the flow port 142 corresponding to the second fluid passage 113 and the sealing ring 150 at the flow port 142 corresponding to the third fluid passage 114, thereby setting the communication ratio of the second fluid passage 113 and the communication passage 124 of the valve core 120 to an intermediate value of 100% to 0%, that is, less than 100% and greater than 0%, and setting the communication ratio of the third fluid passage 114 and the communication passage 124 of the valve core 120 to an intermediate value of 0% to 100%, that is, greater than 0% and less than 100%, at this time, the second fluid passage 113 is communicated with the first fluid passage 112 through the communication passage 124 of the valve core 120, and the third fluid passage 114 is communicated with the first fluid passage 112 through the communication passage 124 of the valve core 120. That is, when the three-way valve provided by the utility model is in the second working mode, the second fluid passage 113 and the first fluid passage 112 are communicated through the communication passage 124 of the valve core 120, and the third fluid passage 114 and the first fluid passage 112 are communicated through the communication passage 124 of the valve core 120, that is, the cooling liquid enters the first fluid passage 112 from the second port b1 of the first fluid passage 112, enters the valve cavity 111 through the flow port 142 of the fixed frame 140, is guided through the communication passage 124 of the valve core 120, and flows out from the second port b2 of the second fluid passage 113 and the second port b3 of the third fluid passage 114, respectively, during the process of the valve core 120 from the first working mode to the third working mode through the second working mode, the flow of the second fluid passage 113 decreases from 100% to 0%, and the flow of the third fluid passage 114 increases from 0% to 100%.

[0046] It should be particularly pointed out that, in Figure 2 and Figure 3 the specific embodiments shown, the valve body 110 includes a valve shell 110a and a lower end cover 110b, the valve shell 110a defines a cavity (not labeled) with an open end, a first fluid passage 112, a second fluid passage 113, and a third fluid passage 114; the bottom of the valve shell 110a is provided with an opening of the cavity (not labeled), and the top of the valve shell 110a is provided with a first through hole 110c for the valve core shaft 130 to pass through; the lower end cover 110b is sealingly connected to the bottom of the valve shell 110a, so that the cavity (not labeled) and the lower end cover 110b are buckled to form the valve cavity 111. Please refer to Figure 13 , which is an exploded view of the three-way valve in another embodiment of the utility model as shown in Figure 1 . Figure 13 The structure of the three-way valve shown in Figure 3 is basically the same as that of the three-way valve shown inFigure 13 The main difference between the three-way valve shown in Figure 3 The main difference between the three-way valve shown in Figure 13 The valve body 110 shown in the figure includes a valve shell 110d and an upper end cover 110e, wherein the valve shell 110d is defined with a cavity (not identified) with an open end, a first fluid passage 112, a second fluid passage 113 and a third fluid passage 114; the top of the valve shell 110d is provided with an opening of the cavity (not identified), and the upper end cover 110e is provided with a second through hole 110f for the valve core shaft 130 to pass through; the upper end cover 110e is sealingly connected with the top of the valve shell 110d, so that the cavity (not identified) and the upper end cover 110e are buckled to form a valve cavity 111.

[0047] According to another aspect of the present application, the present application provides a whole vehicle thermal management device, which comprises the three-way valve provided by the present application, and the three-way valve is used for accurately distributing the flow of cooling liquid in the whole vehicle system to adjust the temperature in each system of the whole vehicle.

[0048] In summary, the present application is suitable for a whole vehicle thermal management integrated system, the valve core adopts a column valve structure, and only a sealing element is used near the pipe opening, thereby reducing the valve core rotation torque requirement.

[0049] It should be pointed out that any modification made by those skilled in the art to the specific embodiments of the present application does not deviate from the scope of the claims of the present application. Accordingly, the scope of the claims of the present application is not limited to the foregoing specific embodiments.

Claims

1. A three-way valve, characterized in that, It includes: A valve body is defined therein as a valve cavity, a first fluid channel, a second fluid channel and a third fluid channel, the first ports of the first fluid channel, the second fluid channel and the third fluid channel are respectively connected to the valve cavity, and the second ports of the first fluid channel, the second fluid channel and the third fluid channel are located on the outside of the valve body; A valve core is rotatably mounted in the valve cavity. The valve core has a columnar structure and includes a sealing part and a communicating channel arranged along its circumference. A valve spindle, one end of which is fixed to the valve core and the other end of which protrudes from the valve body, rotates to drive the valve core to rotate synchronously. A fixing frame is located inside the valve cavity and sleeved outside the valve core. At least three flow ports are provided at intervals along the circumference of the fixing frame, wherein the three flow ports are respectively opposite to the first ports of the first fluid channel, the second fluid channel and the third fluid channel. Multiple sealing rings are provided, with a corresponding sealing ring nested in each of the flow ports. The front of the sealing ring abuts against the inner wall of the valve cavity. When the valve core rotates, the back of the sealing ring can abut against the sealing part that has rotated to this position. The rotation of the valve core causes the sealing part and the communication channel of the valve core to rotate relative to the fixed frame and the valve cavity, thereby controlling the connection or disconnection between the first port of the first fluid channel, the second fluid channel and the third fluid channel and the communication channel of the valve core.

2. The three-way valve according to claim 1, characterized in that, The first fluid channel is an inflow channel, and the second and third fluid channels are outflow channels; When the valve core rotates to the first position, the sealing part of the valve core engages with the sealing ring at the flow port corresponding to the third fluid channel, thereby completely disconnecting the communication channel between the third fluid channel and the valve core, and setting the communication ratio between the second fluid channel and the valve core to 100%. At this time, the second fluid channel is connected to the first fluid channel through the communication channel of the valve core. When the valve core rotates to the third position, the sealing part of the valve core engages with the sealing ring at the flow port corresponding to the second fluid channel, thereby completely disconnecting the communication channel between the second fluid channel and the valve core, and setting the communication ratio between the third fluid channel and the valve core to 100%. At this time, the third fluid channel is connected to the first fluid channel through the communication channel of the valve core. When the valve core rotates to a position between the first and third positions, the sealing part of the valve core engages with the sealing ring at the flow port corresponding to the second fluid channel and the sealing ring at the flow port corresponding to the third fluid channel, thereby setting the communication ratio between the second fluid channel and the valve core to an intermediate value between 100% and 0%, and setting the communication ratio between the third fluid channel and the valve core to an intermediate value between 0% and 100%. At this time, both the second and third fluid channels are connected to the first fluid channel through the communication channel of the valve core.

3. The three-way valve according to claim 1, characterized in that, It also includes actuators, The actuator is fixedly connected to the valve body; The actuator is driven to connect to the valve spindle. The actuator is used to drive the valve core shaft to rotate.

4. The three-way valve according to claim 3, characterized in that, It also includes multiple sealing ring supports, each of the sealing rings having a corresponding sealing ring support nested within it, the sealing ring supports being used to support the sealing ring; A stop block is provided at one end of the valve core located inside the valve cavity, and a limiting block is provided inside the valve cavity to cooperate with the stop block. The rotation angle of the valve core is limited by the cooperation of the stop block and the limiting block.

5. The three-way valve according to claim 4, characterized in that, The sealing ring and the flow port are respectively provided with mutually cooperating mounting grooves and mounting bosses, so that the sealing ring is fixed in the corresponding flow port; The sealing ring bracket and the sealing ring are respectively provided with mutually cooperating mounting grooves and mounting bosses, so that the sealing ring bracket is fixed in the corresponding sealing ring.

6. The three-way valve according to claim 1, characterized in that, The valve body also includes a mounting plate, which is disposed on one side of the valve body. The second ports of the first fluid channel, the second fluid channel, and the third fluid channel are arranged in parallel on the mounting plate.

7. The three-way valve according to claim 6, characterized in that, It also includes a sealing gasket, The sealing gasket has three connection ports that penetrate through the sealing gasket; When the sealing gasket is attached to and sealed to the mounting plate, the three connection ports are respectively opposite to and connected to the second ports of the first fluid channel, the second fluid channel and the third fluid channel.

8. The three-way valve according to any one of claims 1-7, characterized in that, The valve body includes a valve housing and a lower end cap. The valve housing defines a cavity with one end open, a first fluid channel, a second fluid channel, and a third fluid channel. The bottom of the valve housing is provided with an opening for the cavity, and the top of the valve housing is provided with a first through hole for the valve spindle to pass through. The lower end cap is sealed to the bottom of the valve housing so that the cavity and the lower end cap are fastened together to form the valve cavity.

9. The three-way valve according to any one of claims 1-7, characterized in that, The valve body includes a valve shell and an upper end cap. The valve housing defines a cavity with one end open, a first fluid channel, a second fluid channel, and a third fluid channel. The valve housing has an opening in the cavity at its top, and the upper end cover has a second through hole through which the valve spindle passes. The upper end cap is sealed to the top of the valve housing so that the cavity and the upper end cap are fastened together to form the valve cavity.

10. A vehicle thermal management device, characterized in that, It includes a three-way valve as described in any one of claims 1-9. The three-way valve is used to precisely distribute the flow of coolant in the vehicle system in order to regulate the temperature of each system in the vehicle.

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