Multi-way valve and thermal management system

Abstract

The embodiment of the invention provides a multi-way valve and a heat management system, and relates to the technical field of flow control. The multi-way valve comprises a valve body and a valve element, the valve body is provided with a first flow channel opening, a second flow channel opening, a third flow channel opening, a fourth flow channel opening and a fifth flow channel opening, the valve element can be rotationally arranged in a valve cavity of the valve body, and the valve element is provided with a first flow channel part, a second flow channel part and a third flow channel part which are separated from one another; according to the multi-way valve, multiple valves can be integrated, for example, the functions of a three-way valve and a two-way valve can be integrated, the proportional adjusting function of the three-way valve and the switching function of the two-way valve are achieved, meanwhile, the structure is simple, and cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of flow control, and in particular to a multi-way valve and a thermal management system. Background Art

[0002] In the prior art, multiple circulation loops are designed in the thermal management system of electric vehicles. According to the thermal management principle of the vehicle body, multiple solenoid valves are needed to switch between multiple working conditions. Generally speaking, a mixture of three-way valves and two-way valves is commonly used.

[0003] In order to increase the driving range of pure electric vehicles, the body thermal management design requires more and more working conditions. Considering cost saving, lightweight, layout space, etc., it is particularly important to design a multi-way valve that can integrate multiple valves. Summary of the invention

[0004] The present invention provides a multi-way valve and a thermal management system, which can integrate multiple valves.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a multi-way valve, comprising:

[0007] a valve body, wherein the valve body is provided with a first flow channel opening, a second flow channel opening, a third flow channel opening, a fourth flow channel opening and a fifth flow channel opening; and

[0008] A valve core, the valve core is rotatably disposed in the valve cavity of the valve body, the valve core is provided with a first flow channel portion, a second flow channel portion and a third flow channel portion which are separated from each other, the first flow channel portion, the second flow channel portion and the third flow channel portion surround the circumference of the valve core and the rotation axis is arranged at intervals;

[0009] Wherein, the first flow channel portion is used to match the first flow channel opening and the second flow channel opening so that the first flow channel opening and the second flow channel opening are connected or isolated;

[0010] The second flow channel portion is used to match at least two flow channel openings among the third flow channel opening, the fourth flow channel opening and the fifth flow channel opening, so that at least two flow channel openings among the third flow channel opening, the fourth flow channel opening and the fifth flow channel opening are connected;

[0011] The third flow channel portion is used to match at least two flow channel openings among the third flow channel opening, the fourth flow channel opening and the fifth flow channel opening, so that at least two flow channel openings among the third flow channel opening, the fourth flow channel opening and the fifth flow channel opening are in communication.

[0012] In an optional embodiment, the first flow channel opening, the second flow channel opening, the third flow channel opening, the fourth flow channel opening and the fifth flow channel opening sequentially surround the rotation axis of the valve core;

[0013] Among them, the first flow channel opening, the second flow channel opening, the third flow channel opening, the fourth flow channel opening and the fifth flow channel opening are spaced apart in sequence, and the distance between any two adjacent ones of the third flow channel opening, the fourth flow channel opening and the fifth flow channel opening is smaller than the distance between the first flow channel opening and the second flow channel opening.

[0014] In an optional embodiment, the valve core is further provided with a plurality of blocking flow channels, the plurality of blocking flow channels surround the rotation axis of the valve core, and the blocking flow channels are distributed between any two flow channel portions among the first flow channel portion, the second flow channel portion and the third flow channel portion;

[0015] The blocking flow channel is used to block the second flow channel opening, the third flow channel opening, or the fifth flow channel opening.

[0016] In an optional embodiment, the opening central angles of the plurality of blocked flow channels are the same.

[0017] In an optional embodiment, the opening central angle of the first flow channel portion is three times the opening central angle of the blocked flow channel, the opening central angle of the second flow channel portion is equal to the opening central angle of the third flow channel portion, and the opening central angle of the second flow channel portion is twice the opening central angle of the blocked flow channel.

[0018] In an optional embodiment, an opening central angle of the first flow channel portion is greater than an opening central angle of the second flow channel portion or an opening central angle of the third flow channel portion.

[0019] In an optional embodiment, an opening center angle of the second flow channel portion is equal to an opening center angle of the third flow channel portion.

[0020] In an optional embodiment, the first flow channel opening has an independent first sub-flow channel opening and an independent second sub-flow channel opening, and the first sub-flow channel opening is connected to the second sub-flow channel opening;

[0021] The first flow channel portion is used to simultaneously match the first sub-flow channel opening, the second sub-flow channel opening and the second flow channel opening, so that the first sub-flow channel opening is connected to the second sub-flow channel opening and the second flow channel opening at the same time, or the first sub-flow channel opening is connected to the second sub-flow channel opening.

[0022] In an optional embodiment, the multi-way valve further includes an actuator, wherein the actuator is connected to the valve core, and the actuator is used to drive the valve core to rotate relative to the valve body.

[0023] In a second aspect, the present invention provides a thermal management system, comprising the multi-way valve described in any one of the aforementioned embodiments.

[0024] The beneficial effects of the multi-way valve and thermal management system of the embodiments of the present invention include, for example:

[0025] The present invention provides a multi-way valve, which includes a valve body and a valve core, wherein the valve body is provided with a first flow channel opening, a second flow channel opening, a third flow channel opening, a fourth flow channel opening and a fifth flow channel opening, the valve core is rotatably arranged in a valve cavity of the valve body, and the valve core is provided with a first flow channel portion, a second flow channel portion and a third flow channel portion separated from each other, the first flow channel portion, the second flow channel portion and the third flow channel portion surround the circumference of the valve core and are arranged at intervals, wherein the first flow channel portion is used to match the first flow channel opening and the second flow channel opening, so that the first flow channel opening and the The second flow channel opening is connected or blocked, the second flow channel portion is used to match at least two flow channels among the third flow channel opening, the fourth flow channel opening and the fifth flow channel opening, so that at least two flow channels of the third flow channel opening, the fourth flow channel opening and the fifth flow channel opening are connected, the third flow channel portion is used to match at least two flow channels among the third flow channel opening, the fourth flow channel opening and the fifth flow channel opening, so that at least two flow channels of the third flow channel opening, the fourth flow channel opening and the fifth flow channel opening are connected, the multi-way valve can integrate multiple valves, has a simple structure and reduces costs.

[0026] The present invention provides a thermal management system, which includes the multi-way valve mentioned above and has all the functions of the multi-way valve mentioned above. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A cross-sectional view of a multi-way valve provided in an embodiment of the present invention;

[0029] Figure 2 A schematic diagram of a valve body provided in an embodiment of the present invention;

[0030] Figure 3 A cross-sectional view of a valve body provided in an embodiment of the present invention;

[0031] Figure 4 A schematic diagram of a valve core provided in an embodiment of the present invention;

[0032] Figure 5 A cross-sectional view of a valve core provided in an embodiment of the present invention;

[0033] Figure 6 A schematic diagram of an inner leakage seal provided in an embodiment of the present invention;

[0034] Figure 7 A schematic diagram of the relative positions of the valve body and the valve core of the multi-way valve provided in an embodiment of the present invention when the valve body and the valve core are in mode 1;

[0035] Figure 8 A schematic diagram of the relative positions of the valve body and the valve core of the multi-way valve provided in an embodiment of the present invention when the valve body and the valve core are in mode 2;

[0036] Fig. 9 A schematic diagram of the relative positions of the valve body and the valve core of the multi-way valve provided in an embodiment of the present invention when the valve body and the valve core are in mode three;

[0037] Fig.10 A schematic diagram of the relative positions of the valve body and the valve core of the multi-way valve provided in an embodiment of the present invention when the valve body and the valve core are in mode 4;

[0038] Fig.11 A schematic diagram of the relative positions of the valve body and the valve core of the multi-way valve provided in an embodiment of the present invention when the valve body and the valve core are in mode five;

[0039] Fig.12 It is a schematic diagram of the relative positions of the valve body and the valve core when the multi-way valve provided in the embodiment of the present invention is in mode six.

[0040] Icon: 100-valve body; 110-first flow channel opening; 120-second flow channel opening; 130-third flow channel opening; 140-fourth flow channel opening; 150-fifth flow channel opening; 101-positioning hole; 102-first limiting groove; 103-second limiting groove; 200-valve core; 210-first flow channel portion; 220-second flow channel portion; 230-third flow channel portion; 240-first blocked flow channel; 250-second blocked flow channel; 260-third blocked flow channel; 270-first limiting axis; 280-second limiting axis; 291-first sealing rib; 292-second sealing rib; 300-actuator; 400-internal leakage seal. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0046] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0047] As submitted in the background technology, in the prior art, multiple circulation loops are designed in the thermal management system of electric vehicles. According to the thermal management principle of the vehicle body, multiple solenoid valves are needed to achieve switching of various working conditions. Generally speaking, a mixture of three-way valves and two-way valves is commonly used.

[0048] In order to increase the driving range of pure electric vehicles, the body thermal management design requires more and more working conditions. Considering cost saving, lightweight, layout space, etc., it is particularly important to design a multi-way valve that can integrate multiple valves.

[0049] For example, a three-way valve and a two-way valve are integrated into a multi-way valve, or two three-way valves are integrated into a multi-way valve.

[0050] In view of this, please refer to Figure 1-Figure 12 The multi-way valve and thermal management system provided in the embodiments of the present invention can solve this problem, which will be described in detail below.

[0051] Please refer to Figure 1-Figure 4 Combined with Figure 7A thermal management system is provided in an embodiment of the present invention. The thermal management system can be applied to vehicles, for example, electric vehicle assemblies. The thermal management system has a multi-way valve. The multi-way valve can integrate multiple valves, for example, a three-way valve function and a two-way valve function, to achieve a three-way valve proportional adjustment function and a two-way valve switch function. At the same time, the structure is simple and the cost is reduced.

[0052] Specifically, in this embodiment, the multi-way valve can be a water valve, which includes a valve body 100 and a valve core 200. The outer wall of the valve body 100 is provided with a first flow channel opening 110, a second flow channel opening 120, a third flow channel opening 130, a fourth flow channel opening 140 and a fifth flow channel opening 150. The valve core 200 can be rotatably arranged in the valve cavity of the valve body 100. The valve core 200 is provided with a first flow channel portion 210, a second flow channel portion 220 and a third flow channel portion 230 separated from each other. The first flow channel portion 210, the second flow channel portion 220 and the third flow channel portion 230 surround the circumference of the valve core 200 and are arranged at intervals.

[0053] Specifically, in this embodiment, the first flow channel portion 210 , the second flow channel portion 220 and the third flow channel portion 230 surround the rotation axis of the valve core 200 .

[0054] Among them, the first flow channel portion 210 is used to match the first flow channel opening 110 and the second flow channel opening 120, so that the first flow channel opening 110 and the second flow channel opening 120 are connected or isolated, and the second flow channel portion 220 is used to match at least two flow channel openings among the third flow channel opening 130, the fourth flow channel opening 140 and the fifth flow channel opening 150, so that at least two flow channel openings among the third flow channel opening 130, the fourth flow channel opening 140 and the fifth flow channel opening 150 are connected.

[0055] The third flow channel portion 230 is used to match at least two flow channels among the third flow channel opening 130, the fourth flow channel opening 140 and the fifth flow channel opening 150, so that at least two flow channels among the third flow channel opening 130, the fourth flow channel opening 140 and the fifth flow channel opening 150 are connected. The multi-way valve can integrate multiple valves, has a simple structure and reduces costs.

[0056] In order to facilitate the rotation of the valve core 200 relative to the valve body 100 to achieve switching between various flow path modes of the multi-way valve, the multi-way valve also includes an actuator 300, which is connected to the valve core 200 and is used to drive the valve core 200 to rotate relative to the valve body 100.

[0057] The specific structure and principle of the actuator 300 may refer to the existing actuator structure and principle, which will not be described in detail here.

[0058] It should be noted that, in order to facilitate the normal rotation process of the valve core 200, please refer to Figure 1 , Figure 3 and Figure 4 The top and bottom of the valve core 200 respectively have a first limiting shaft 270 and a second limiting shaft 280 , and the first limiting shaft 270 is connected to the actuator 300 . At the same time, a positioning hole 101 is provided at the bottom of the valve body 100 , and the second limiting shaft 280 is matched with the positioning hole 101 .

[0059] In order to improve the sealing performance of the multi-way valve, in this embodiment, the multi-way valve further includes an inner leakage seal 400 ( Figure 6 As shown in the figure, the inner leakage seal 400 is roughly annular in structure and has a notch portion. Therefore, the inner leakage seal 400 is C-shaped. Along the radial direction of the multi-way valve, the inner leakage seal 400 is located between the valve core 200 and the inner wall of the valve body 100. The inner leakage seal 400 is provided with five through holes, which respectively correspond to the first flow channel opening 110, the second flow channel opening 120, the third flow channel opening 130, the fourth flow channel opening 140 and the fifth flow channel opening 150 of the valve body 100.

[0060] It should be noted that the multi-way valve also includes a PTFE layer, which can be arranged on the inner wall of the inner leakage seal 400. Of course, the PTFE layer also needs to be provided with five openings to correspond to the five through holes of the inner leakage seal 400 respectively. The PTFE layer can reduce the resistance encountered by the valve core 200 during the rotation process.

[0061] Among them, a first annular limiting groove 102 is provided on the bottom wall of the valve body 100, and the end of the internal leakage seal 400 is arranged in the first limiting groove 102 to limit the internal leakage seal 400 to prevent the internal leakage seal 400 from being scratched and caused to wrinkle and deform when the valve core 200 rotates. At the same time, two spaced second limiting grooves 103 are also provided on the inner wall of the valve body 100, and the notch of the internal leakage seal 400 is simultaneously matched with the two second limiting grooves 103 to prevent the internal leakage seal 400 from rotating when the valve core 200 rotates.

[0062] In other embodiments, a protrusion protruding toward the valve body can be provided on the outer wall of the internal leakage seal 400, and a groove can be provided on the inner wall of the valve body, and the protrusion can be inserted into the groove to limit the rotation of the internal leakage seal due to the rotation of the valve core. The internal leakage seal 400 can be a C-shaped structure or a ring-shaped structure.

[0063] Alternatively, in some embodiments, a plurality of protrusions are provided on the inner wall of the valve body, and a groove is provided on the outer wall of the inner leakage seal, and the protrusions are inserted into the groove to limit the rotation of the inner leakage seal due to the rotation of the valve core. The inner leakage seal 400 can be a C-shaped structure or a ring-shaped structure.

[0064] At the same time, the peripheral wall of the valve core 200 has two annular first sealing ribs 291 , and the first sealing ribs 291 can abut against the inner wall of the inner leakage sealing member 400 .

[0065] Two annular first sealing ribs 291 are distributed at intervals, and the two annular first sealing ribs 291 both surround the rotation axis of the valve core. The first flow channel portion 210, the second flow channel portion 220, the third flow channel portion 230, the first blocking flow channel 240, the second blocking flow channel 250 and the third blocking flow channel 260 are located on the two annular first sealing ribs 291. The peripheries of the two first sealing ribs 291 can abut against the inner wall of the inner leakage seal 400 to improve the sealing between the valve core and the inner leakage seal 400. Specifically, the first flow channel opening 110, the second flow channel opening 120, the third flow channel opening 130, the fourth flow channel opening 140 and the fifth flow channel opening 150 are sequentially arranged around the rotation axis of the valve core 200, wherein the first flow channel opening 110, the second flow channel opening 120, the third flow channel opening 130, the fourth flow channel opening 140 and the fifth flow channel opening 150 are sequentially spaced apart, and the distance between any two adjacent ones of the third flow channel opening 130, the fourth flow channel opening 140 and the fifth flow channel opening 150 is smaller than the distance between the first flow channel opening 110 and the second flow channel opening 120.

[0066] In this embodiment, the distance between the third flow channel opening 130 and the fourth flow channel opening 140 is equal to the distance between the fourth flow channel opening 140 and the fifth flow channel opening 150 .

[0067] The first flow channel opening 110 and the second flow channel opening 120 correspond to the flow path of the two-way valve, and the third flow channel opening 130, the fourth flow channel opening 140 and the fifth flow channel opening 150 correspond to the flow path of the three-way valve, so that the multi-way valve can not only realize the function of a two-way valve, but also has the function of a three-way valve.

[0068] In addition, the valve core 200 is also provided with a plurality of blocking flow channels, which surround the rotation axis of the valve core 200. A blocking flow channel is distributed between any two flow channel portions among the first flow channel portion 210, the second flow channel portion 220 and the third flow channel portion 230, and the blocking flow channel is used to block the second flow channel opening 120 or the third flow channel opening 130 or the fifth flow channel opening 150.

[0069] The blocked flow channel is equivalent to a groove structure formed by a part of the peripheral wall of the valve core 200 toward the rotation axis of the valve core, which can reduce the weight of the valve core 200 and further reduce the driving force required to drive the valve core 200 to rotate.

[0070] Specifically, in this embodiment, the number of the blocked flow channels is three, namely the first blocked flow channel 240 , the second blocked flow channel 250 , and the third blocked flow channel 260 .

[0071] The first blocked flow channel 240 is located between the first flow channel portion 210 and the second flow channel portion 220 , the second blocked flow channel 250 is located between the second flow channel portion 220 and the third flow channel portion 230 , and the third blocked flow channel 260 is located between the third flow channel portion 230 and the first flow channel portion 210 .

[0072] The first blocking flow channel 240 can block the third flow channel opening 130 , the third blocking flow channel 260 can block the fifth flow channel opening 150 or the second flow channel opening 120 , and the second blocking flow channel 250 can block the fifth flow channel opening 150 .

[0073] In some embodiments, the second flow channel opening 120 , the third flow channel opening 130 , or the fifth flow channel opening 150 is conveniently blocked.

[0074] The multi-way valve further comprises an inner leakage sealing sleeve (not shown), which can replace the inner leakage sealing member mentioned above. The inner leakage sealing sleeve is sleeved on the outer periphery of the valve core 200 and is fixedly connected to the valve core 200 .

[0075] For example, the inner leakage sealing sleeve is fixedly connected to the valve core 200 by interference fit, or the inner leakage sealing sleeve is clamped with the valve core 200. During the rotation of the valve core 200, the valve core 200 can drive the inner leakage sealing sleeve to rotate synchronously.

[0076] Among them, the inner leakage sealing sleeve has multiple sealing wall portions and multiple conducting openings (for example, the number of the conducting openings is three), and the first flow channel portion 210, the second flow channel portion 220 and the third flow channel portion 230 are respectively connected to each conducting opening, and the sizes of the three conducting openings can be respectively set to just open the first flow channel portion 210, the second flow channel portion 220 and the third flow channel portion 230, so as to avoid affecting the connection between the first flow channel portion 210, the second flow channel portion 220 and the third flow channel portion 230 and the valve body 100.

[0077] Among them, sealing wall portions are distributed between adjacent conducting openings. Specifically, the number of the sealing wall portions is also three, and the three sealing wall portions can respectively cover the first blocking flow channel 240, the second blocking flow channel 250 and the third blocking flow channel 260.

[0078] At the same time, the sealing wall is used to block the second flow channel opening 120 or the third flow channel opening 130 or the fifth flow channel opening 150. The functions of the three sealing walls can refer to the first blocking flow channel 240, the second blocking flow channel 250 and the third blocking flow channel 260 mentioned above.

[0079] Of course, in some embodiments, since the inner leakage sealing sleeve has a sealing wall portion, the valve core 200 may not be provided with the three blocking flow channels mentioned above.

[0080] In order to improve the sealing performance of the multi-way valve, the valve core 200 also has a plurality of second sealing ribs 292 in the form of long strips. The second sealing ribs 292 can be parallel to the rotation axis of the valve core 200. It is easy to understand that in this embodiment, both sides of the blocked flow channel can have the second sealing ribs 292. The second sealing ribs 292 can abut the internal leakage seal 400 to improve the sealing between the valve core 200 and the internal leakage seal 400.

[0081] In order to facilitate the multi-way valve to have the switching function of a two-way valve and the proportional adjustment function of a three-way valve, the opening center angle of the first flow channel portion 210 is greater than the opening center angle of the second flow channel portion 220 or the opening center angle of the third flow channel portion 230.

[0082] In this embodiment, the opening center angle of the second flow channel portion 220 is equal to the opening center angle of the third flow channel portion 230 .

[0083] In addition, it should be noted that the sizes of the five flow openings on the valve body 100 (i.e., the first flow opening 110, the second flow opening 120, the third flow opening 130, the fourth flow opening 140 and the fifth flow opening 150) can be set according to actual needs, and not all of the five flow openings are of the same size. The flow opening size here can be understood as the opening center angle of the flow opening, or as the opening area of ​​the flow opening.

[0084] The angle between any two of the five flow channel openings can also be set according to actual needs, and the opening center angles or positions of the corresponding first flow channel portion 210, the second flow channel portion 220, and the third flow channel portion 230 can be adjusted accordingly to realize the flow path of the two-way valve corresponding to the first flow channel opening 110 and the second flow channel opening 120, and the flow path of the three-way valve corresponding to the third flow channel opening 130, the fourth flow channel opening 140 and the fifth flow channel opening 150.

[0085] In this embodiment, a preferred scheme is provided, in which the opening central angles of multiple blocked flow channels are the same, that is, the angle is α. At the same time, the opening central angle of the first flow channel portion 210 is 4α, which is four times the opening central angle of the blocked flow channel. The opening central angle of the second flow channel portion 220 and the opening central angle of the third flow channel portion 230 are equal, both of which are 2α. The opening central angle of the second flow channel portion 220 is twice the opening central angle of the blocked flow channel.

[0086] It can be seen that in this embodiment, the angle α can be approximately 33°, which is equivalent to dividing the valve core 200 into eleven equal parts in the circumferential direction, that is, the central angle of each equal part is approximately 33°.

[0087] Of course, in other embodiments, it can also be divided into ten equal parts, twelve equal parts, etc. Generally speaking, the multi-way valve has an angle sensor, which is used to detect the rotation angle of the valve core 200. Considering the accuracy of the angle sensor, the central angle of each division can generally be selected to be greater than or equal to 20°, such as a central angle of 20° or 21 degrees. At this time, the opening central angle of the first flow channel portion 210 can still be greater than the opening central angle of the second flow channel portion 220 or the opening central angle of the third flow channel portion 230, and the opening central angle of the second flow channel portion 220 is equal to the opening central angle of the third flow channel portion 230.

[0088] However, the opening center angle of the first flow channel portion 210 is not necessarily three times the opening center angle of the blocked flow channel, and the opening center angle of the second flow channel portion 220 is not necessarily two times the opening center angle of the blocked flow channel, and can be set specifically according to actual conditions.

[0089] Next, the working principle of the multi-way valve provided in this embodiment is introduced:

[0090] Specifically, please refer to Figure 7-Figure 12 The multi-way valve provided in this embodiment has at least the following six flow path modes. The multi-way valve is equivalent to integrating the switching and proportional adjustment functions of a three-way valve and the opening or closing function of a two-way valve.

[0091] When the three-way valve is switched to the reversing or proportional regulation mode, the state of the two-way valve may remain unchanged.

[0092] Mode 1

[0093] like Figure 7 As shown, the valve core 200 is controlled to rotate relative to the valve body 100 by the actuator 300, the first flow channel portion 210 is connected to the first flow channel opening 110 and the second flow channel opening 120 at the same time, the second blocking flow channel 250 blocks the third flow channel opening 130, and the third flow channel portion 230 is connected to the fourth flow channel opening 140 and the fifth flow channel opening 150 at the same time. At this time, the first flow channel opening 110 and the second flow channel opening 120 are connected, which is equivalent to the opening of the two-way valve, two of the flow paths of the three-way valve are connected, and the other flow path is closed.

[0094] Mode 2

[0095] like Figure 8 As shown, the valve core 200 is controlled to rotate relative to the valve body 100 by the actuator 300, the first flow channel portion 210 connects the first flow channel opening 110 and the second flow channel opening 120 at the same time, the third flow channel portion 230 makes the fourth flow channel opening 140 fully open, and at the same time the second blocking flow channel 250 blocks the partial opening of the third flow channel opening 130, and the third blocking flow channel 260 blocks the partial opening of the fifth flow channel opening 150. At this time, it is equivalent to the proportional adjustment process of the three-way valve, and at the same time, the two-way valve is opened.

[0096] Mode 3

[0097] like Fig. 9 As shown, the valve core 200 is controlled to rotate relative to the valve body 100 by the actuator 300, the first flow channel portion 210 is connected to the first flow channel opening 110 and the second flow channel opening 120 at the same time, the third blocking flow channel 260 blocks the fifth flow channel opening 150, and the third flow channel portion 230 is connected to the fourth flow channel and the third flow channel opening 130 at the same time. At this time, the first flow channel opening 110 and the second flow channel opening 120 are connected, which is equivalent to the opening of the two-way valve. Two of the flow paths of the three-way valve are connected, and the other flow path is closed. Different from mode 1, at this time, the fourth flow channel and the third flow channel opening 130 are connected, which can be understood as the switching process of the three-way valve.

[0098] Mode 4

[0099] like Fig.10 As shown, the valve core 200 is controlled to rotate relative to the valve body 100 by the actuator 300, the first blocking flow path blocks the fourth flow channel opening 140, the second flow channel portion 220 connects the fourth flow channel opening 140 and the fifth flow channel opening 150 at the same time, the third blocking flow channel 260 blocks the second flow channel opening 120, and at this time the third flow channel portion 230 also blocks the first flow channel opening 110, the two-way valve part is equivalent to being in a closing function, and only the two flow paths of the three-way valve are connected.

[0100] Mode 5

[0101] like Fig.11 As shown, the valve core 200 is controlled to rotate relative to the valve body 100 by the actuator 300, and the second flow channel portion 220 makes the fourth flow channel opening 140 fully open. At the same time, the first blocking flow channel 240 and the second blocking flow channel 250 can block the partial openings of the third flow channel opening 130 and the fifth flow channel opening 150. The third flow channel portion 230 also blocks the first flow channel opening 110. The first flow channel portion 210 and the third blocking flow channel 260 are equivalent to jointly blocking the second flow channel opening 120. At this time, the two-way valve part is equivalent to being in a closing function, and the three-way valve is in a proportional adjustment function.

[0102] Mode 6

[0103] like Fig.12As shown, the valve core 200 is controlled to rotate relative to the valve body 100 by the actuator 300, and the third flow channel portion 230 also blocks the first flow channel opening 110. The first flow channel portion 210 and the third blocking flow channel 260 are equivalent to jointly blocking the second flow channel opening 120. The second blocking flow channel 250 blocks the fifth flow channel opening 150. The second flow channel portion 220 is connected to the fourth flow channel opening 140 and the third flow channel opening 130 at the same time. At this time, the two-way valve part is equivalent to being in a closing function, and only the two flow paths of the three-way valve are connected. The two connected flow paths of the three-way valve are different from the two flow paths of the three-way valve in the connected state in mode four, thereby realizing the switching process of the three-way valve.

[0104] It should be noted that, in other embodiments, the first flow channel opening 110 may have an independent first sub-flow channel opening and an independent second sub-flow channel opening, the first sub-flow channel opening and the second sub-flow channel opening are connected, and the first flow channel portion 210 is used to simultaneously match the first sub-flow channel opening and the second sub-flow channel opening and the second flow channel opening 120.

[0105] The first sub-channel opening is connected to the second sub-channel opening and the second channel opening 120 at the same time, or the first sub-channel opening is connected to the second sub-channel opening.

[0106] This is equivalent to adding a normally open flow channel opening (which can be understood as an inlet) to the two-way valve mentioned above. At this time, the first sub-flow channel opening is the normally open flow channel opening of the second sub-flow channel opening. In this way, the multi-way valve can integrate the functions of two three-way valves.

[0107] Specifically, a multi-way valve having an independent first sub-channel port and an independent second sub-channel port can also realize the above six flow path modes.

[0108] For example, in the above-mentioned modes 1 to 3, the difference is that the first sub-channel port is connected to the second sub-channel port and the second channel port at the same time, and the opening degrees of the second sub-channel port and the second channel port are 50% respectively.

[0109] In the above-mentioned modes 4 to 6, the difference is that the first sub-channel port is connected to the second sub-channel port, and the second channel port is blocked.

[0110] To sum up, the multi-way valve can integrate the functions of a three-way valve and a two-way valve, has a simple structure and lower cost, realizes the proportional adjustment function and reversing function of the three-way valve and the switching function of the two-way valve, and has a simple structure and reduces costs. At the same time, the multi-way valve can also integrate the functions of two three-way valves.

[0111] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A multi-way valve, characterized in that: include: A valve body (100), wherein the valve body (100) is provided with a first flow channel opening (110), a second flow channel opening (120), a third flow channel opening (130), a fourth flow channel opening (140) and a fifth flow channel opening (150); and A valve core (200), the valve core (200) being rotatably disposed in the valve cavity of the valve body (100), the valve core (200) being provided with a first flow channel portion (210), a second flow channel portion (220) and a third flow channel portion (230) which are separated from each other, the first flow channel portion (210), the second flow channel portion (220) and the third flow channel portion (230) surrounding the circumference of the valve core (200) and being arranged at intervals; Wherein, the first flow channel portion (210) is used to match the first flow channel opening (110) and the second flow channel opening (120) so that the first flow channel opening (110) and the second flow channel opening (120) are connected or disconnected; The second flow channel portion (220) is used to match at least two flow channel openings among the third flow channel opening (130), the fourth flow channel opening (140) and the fifth flow channel opening (150), so that at least two flow channel openings among the third flow channel opening (130), the fourth flow channel opening (140) and the fifth flow channel opening (150) are connected; The third flow channel portion (230) is used to match at least two flow channel openings among the third flow channel opening (130), the fourth flow channel opening (140) and the fifth flow channel opening (150), so that at least two flow channel openings among the third flow channel opening (130), the fourth flow channel opening (140) and the fifth flow channel opening (150) are connected.

2. The multi-way valve according to claim 1, characterized in that: The first flow channel opening (110), the second flow channel opening (120), the third flow channel opening (130), the fourth flow channel opening (140) and the fifth flow channel opening (150) sequentially surround the rotation axis of the valve core (200); Wherein, the first flow channel opening (110), the second flow channel opening (120), the third flow channel opening (130), the fourth flow channel opening (140) and the fifth flow channel opening (150) are spaced apart in sequence, and the distance between any two adjacent ones of the third flow channel opening (130), the fourth flow channel opening (140) and the fifth flow channel opening (150) is smaller than the distance between the first flow channel opening (110) and the second flow channel opening (120).

3. The multi-way valve according to claim 2, characterized in that: The valve core (200) is further provided with a plurality of blocking flow channels, the plurality of blocking flow channels surround the rotation axis of the valve core (200), and the blocking flow channels are distributed between any two flow channel portions among the first flow channel portion (210), the second flow channel portion (220) and the third flow channel portion (230); The blocking flow channel is used to block the second flow channel opening (120) or the third flow channel opening (130) or the fifth flow channel opening (150); Alternatively, the multi-way valve further comprises an inner leakage sealing sleeve, the inner leakage sealing sleeve being sleeved on the outer periphery of the valve core (200) and being fixedly connected to the valve core (200), the inner leakage sealing sleeve having a plurality of sealing wall portions and a plurality of conducting openings, the first flow channel portion (210), the second flow channel portion (220) and the third flow channel portion (230) being respectively connected to each of the conducting openings, and the sealing wall portions being distributed between adjacent conducting openings; The sealing member wall portion is used to seal the second flow channel opening (120) or the third flow channel opening (130) or the fifth flow channel opening (150).

4. The multi-way valve according to claim 3, characterized in that: The opening central angles of the plurality of blocked flow channels are the same.

5. The multi-way valve according to claim 4, characterized in that: The opening central angle of the first flow channel portion (210) is three times the opening central angle of the blocked flow channel, the opening central angle of the second flow channel portion (220) is equal to the opening central angle of the third flow channel portion (230), and the opening central angle of the second flow channel portion (220) is twice the opening central angle of the blocked flow channel.

6. The multi-way valve according to any one of claims 1 to 5, characterized in that: The opening center angle of the first flow channel portion (210) is greater than the opening center angle of the second flow channel portion (220) or the opening center angle of the third flow channel portion (230).

7. The multi-way valve according to claim 6, characterized in that: The opening center angle of the second flow channel portion (220) is equal to the opening center angle of the third flow channel portion (230).

8. The multi-way valve according to claim 7, characterized in that: The first flow channel opening (110) has an independent first sub-flow channel opening and an independent second sub-flow channel opening, and the first sub-flow channel opening is connected to the second sub-flow channel opening; The first flow channel portion (210) is used to simultaneously match the first sub-flow channel opening, the second sub-flow channel opening and the second flow channel opening (120), so that the first sub-flow channel opening is connected to the second sub-flow channel opening and the second flow channel opening (120) at the same time, or the first sub-flow channel opening is connected to the second sub-flow channel opening.

9. The multi-way valve according to claim 8, characterized in that: The multi-way valve further comprises an actuator (300), wherein the actuator (300) is connected to the valve core (200), and the actuator (300) is used to drive the valve core (200) to rotate relative to the valve body (100).

10. A thermal management system, characterized in that: A multi-way valve comprising the multi-way valve according to any one of claims 1 to 9.

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