Control valve, thermal management system and vehicle

Abstract

The utility model discloses a control valve, a heat management system and a vehicle. The control valve comprises a valve body, the valve body comprises a plurality of inlet and outlet flow channels, a valve chamber and a pressure relief flow channel, the valve chamber is arranged in the valve body, and the inlet and outlet flow channels communicate with the valve chamber; the first end of the pressure relief runner is connected with any one of the inlet and outlet runners, and the second end of the pressure relief runner is connected with the valve chamber; the pressure relief flow channel is a one-way flow channel, and the flowing direction is from the second end of the pressure relief flow channel to the first end of the pressure relief flow channel. The pressure relief flow channel is additionally arranged between the valve chamber and the inlet and outlet flow channel, the pressure relief flow channel is communicated with the high-pressure area of the valve chamber and the sub-high-pressure area of the inlet and outlet flow channel, the pressure of the high-pressure area can be released to the sub-high-pressure area, and the operation reliability of the control valve is improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of control valves, and more specifically to a control valve, a thermal management system and a vehicle. Background Art

[0002] In the prior art, the four-way ball valve used in the vehicle thermal management system has a two-position reversing function, and most of the valve cores are designed with a floating ball structure. During the operation of the four-way ball valve, due to the existence of high-pressure and low-pressure areas, the valve core as a whole is deflected by the pressure difference, and the high-pressure medium inevitably flows to the cavity area of ​​the valve core and the valve body. The additional pressure added to the cavity will increase the torque required by the four-way ball valve, increase the actuator load, and reduce product stability.

[0003] Therefore, it is necessary to provide a control valve, a thermal management system and a vehicle to at least partially solve the above problems. Utility Model Content

[0004] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0005] In order to at least partially solve the above problems, the first aspect of the utility model provides a control valve, comprising:

[0006] A valve body, the valve body comprising a plurality of inlet and outlet flow channels, a valve chamber and a pressure relief flow channel, the valve chamber being arranged inside the valve body, and the inlet and outlet flow channels being communicated with the valve chamber;

[0007] The first end of the pressure relief channel is connected to any one of the inlet and outlet channels, and the second end of the pressure relief channel is connected to the valve chamber;

[0008] The pressure relief flow channel is a one-way flow channel, and the flow direction is from the second end of the pressure relief flow channel toward the first end of the pressure relief flow channel.

[0009] Optionally, the pressure relief channel is provided with a one-way valve, and the one-way valve is used to control the second end of the pressure relief channel to flow toward the first end of the pressure relief channel, and the first end of the pressure relief channel to close toward the second end of the pressure relief channel.

[0010] Optionally, the first end of the pressure relief channel is connected to the side wall of the inlet and outlet channels, and the second end of the pressure relief channel is connected to the side wall of the valve chamber.

[0011] Optionally, a pressure relief chamber is provided at the first end of the valve chamber, and the second end of the pressure relief channel is connected to the pressure relief chamber.

[0012] Optionally, the control valve further includes:

[0013] A first sealing seat is disposed on the valve body to seal the first end of the valve chamber, and all or part of the storage space of the pressure relief chamber is disposed on the first sealing seat.

[0014] Optionally, a groove is provided on a surface of the first sealing seat adjacent to the valve chamber, and the groove is used to constitute the entire storage space or part of the storage space of the pressure relief chamber.

[0015] Optionally, the valve body is provided with the following inlet and outlet flow channels:

[0016] A first inlet and outlet flow channel, the first inlet and outlet flow channel is arranged on a first side of the valve body, the first inlet and outlet flow channel is used to be connected to a first pipeline externally and to be connected to the valve chamber internally;

[0017] a second inlet and outlet flow channel, the second inlet and outlet flow channel being arranged on the second side of the valve body, the second inlet and outlet flow channel being used for externally communicating with a second pipeline and internally communicating with the valve chamber;

[0018] a third inlet and outlet flow channel, the third inlet and outlet flow channel being arranged on a third side of the valve body, the third inlet and outlet flow channel being used for externally connecting to a third pipeline and internally connecting to the valve chamber;

[0019] A fourth inlet and outlet flow channel is provided on a fourth side of the valve body, and is used to be connected to a fourth pipeline externally and to be connected to the valve chamber internally.

[0020] Optionally, the control valve further includes:

[0021] A valve core, the valve core is arranged in the valve chamber;

[0022] The valve core is provided with a first flow channel and a second flow channel. When the valve core is rotated, the first flow channel is connected to the first inlet and outlet flow channels and the second inlet and outlet flow channels, and the second flow channel is connected to the third inlet and outlet flow channels and the fourth inlet and outlet flow channels;

[0023] Alternatively, the first flow channel is connected to the first inlet and outlet flow channel and the third inlet and outlet flow channel, and the second flow channel is connected to the second inlet and outlet flow channel and the fourth inlet and outlet flow channel.

[0024] Optionally, the control valve further includes:

[0025] A valve stem, one end of which extends into the valve chamber and is connected to the valve core, and the valve stem is used to drive the valve core to rotate.

[0026] Optionally, the control valve further includes:

[0027] A second sealing seat is arranged at the second end of the valve body for sealing the valve chamber, and the valve stem passes through the second sealing seat and is connected to the valve core.

[0028] Optionally, the control valve further includes:

[0029] A valve seat is arranged in the valve chamber and corresponds to the inlet and outlet flow channels. The valve seat is in close contact with the valve core, and the valve core can rotate relative to the valve seat.

[0030] Optionally, the control valve further includes:

[0031] A retaining ring is arranged in the valve chamber and sleeved on the valve seat, and the retaining ring is used to support the valve seat.

[0032] Optionally, the control valve further includes:

[0033] A clamping ring is arranged at the inlet and outlet flow channels, and is used to limit the valve seat and keep the valve seat and the valve core in close contact and fit.

[0034] Optionally, the control valve further includes:

[0035] A sealing ring, which is sleeved on the valve seat and is used to seal the gap between the valve seat and the valve body and / or the gap between the valve seat and the clamping ring;

[0036] Alternatively, the sealing ring is sleeved on the clamping ring, and the sealing ring is used to seal the gap between the clamping ring and the valve body.

[0037] A second aspect of the utility model provides a thermal management system, comprising a control valve according to any one of the above technical solutions.

[0038] A third aspect of the present invention provides a vehicle, comprising a thermal management system according to any one of the above technical solutions.

[0039] According to a control valve, thermal management system and vehicle of the utility model, the control valve adds a pressure relief channel between the valve chamber and the inlet and outlet flow channels. The pressure relief channel connects the high-pressure area of ​​the valve chamber and the sub-high-pressure area of ​​the inlet and outlet flow channels, and can release the pressure in the high-pressure area to the sub-high-pressure area, thereby ensuring that the pressure in the high-pressure area is eliminated before the control valve switches between different modes, ensuring that the control valve has no additional increased demand torque during the next switching process, preventing the risk of stalling caused by excessive load on the actuator due to excessive demand torque, and improving the operating reliability of the control valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0041] Figure 1 It is a sectional front view of a control valve according to a preferred embodiment of the utility model;

[0042] Figure 2 A cross-sectional perspective view of a control valve according to a preferred embodiment of the utility model;

[0043] Figure 3 It is a sectional front view of a control valve according to a preferred embodiment of the utility model;

[0044] Figure 4 A cross-sectional perspective view of a control valve according to a preferred embodiment of the utility model;

[0045] Figure 5 It is a structural schematic diagram of a pressure relief channel according to a preferred embodiment of the utility model;

[0046] Figure 6 It is a structural schematic diagram of a valve stem and a second sealing seat according to a preferred embodiment of the utility model;

[0047] Figure 7 This is a schematic diagram of a first control state of a control valve according to a preferred embodiment of the utility model;

[0048] Figure 8 It is a schematic diagram of a second control state of a control valve according to a preferred embodiment of the utility model.

[0049] Description of reference numerals:

[0050] 100: Control valve 101: First inlet and outlet flow channel

[0051] 102: Second inlet and outlet flow channel 103: Third inlet and outlet flow channel

[0052] 104: Fourth inlet and outlet flow channel 105: Valve body

[0053] 106: First valve seat 107: First retaining ring

[0054] 108: Second valve seat 109: Second retaining ring

[0055] 110: Third valve seat 111: First clamping ring

[0056] 112: Fourth valve seat 113: Second clamping ring

[0057] 114: Valve chamber 115: Pressure relief chamber

[0058] 201: Pressure relief channel 202: Groove

[0059] 203: First sealing seat 204: One-way valve

[0060] 300: valve core 301: first flow channel

[0061] 302: Second flow channel 400: Valve stem

[0062] 500: Second sealing seat 600: Sealing ring

[0063] 601: First sealing ring 602: Second sealing ring

[0064] 603: The third sealing ring 604: The fourth sealing ring

[0065] 700: Valve seat 800: Retaining ring

[0066] 900: Clamping ring DETAILED DESCRIPTION

[0067] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0068] In order to thoroughly understand the utility model, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the utility model thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the utility model are described in detail below, but in addition to these detailed descriptions, the utility model may also have other embodiments.

[0069] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0070] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in the present invention are for illustrative purposes only and are not restrictive.

[0071] The utility model discloses a control valve, a thermal management system and a vehicle.

[0072] Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

[0073] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, in a preferred embodiment, a control valve 100 includes: a valve body 105, the valve body 105 includes a plurality of inlet and outlet flow channels, a valve chamber 114 and a pressure relief flow channel 201, the valve chamber 114 is arranged inside the valve body 105, and the inlet and outlet flow channels are connected to the valve chamber 114;

[0074] The valve body 105 is provided with a plurality of inlet and outlet flow channels, which can be connected to the compressor, evaporator, condenser, and temperature-adjustable components in the vehicle thermal management system through pipelines; if the control valve 100 is a four-way valve, four inlet and outlet flow channels are usually provided;

[0075] The valve chamber 114 is disposed inside the valve body 105, and the inlet and outlet flow passages are connected to the valve chamber 114, and the cooling medium can enter and exit the valve chamber 114 through the inlet and outlet flow passages;

[0076] The first end of the pressure relief channel 201 is connected to any inlet and outlet channel, and the second end of the pressure relief channel 201 is connected to the valve chamber 114; the first end of the pressure relief channel 201 in the figure is connected to the first inlet and outlet channel 101, and of course, it can also be connected to other inlet and outlet channels;

[0077] The pressure relief channel 201 is a one-way channel, and the flow direction is from the second end of the pressure relief channel 201 toward the first end of the pressure relief channel 201 .

[0078] During the operation of the control valve 100, a high-pressure area is formed inside the valve chamber 114, and the inlet and outlet flow channels form a secondary high-pressure area relative to the valve chamber 114. The flow direction of the pressure relief channel 201 is from the high-pressure area to the secondary high-pressure area. Before the control valve 100 switches the flow mode, the pressure in the high-pressure area can be released to the secondary high-pressure area through the pressure relief channel 201, so that the pressure in the high-pressure area is eliminated, which facilitates the control valve 100 to switch the flow mode.

[0079] The control valve in the present embodiment adds a pressure relief channel between the valve chamber and the inlet and outlet flow channels. The pressure relief channel connects the high-pressure area of ​​the valve chamber and the secondary high-pressure area of ​​the inlet and outlet flow channels. The pressure in the high-pressure area can be released to the secondary high-pressure area, ensuring that the pressure in the high-pressure area is eliminated before the control valve switches between different modes. This ensures that the control valve does not have an additional increase in required torque during the next switching process, preventing the risk of the actuator being blocked due to excessive load caused by excessive required torque, thereby improving the operating reliability of the control valve.

[0080] The pressure relief channel 201 may be in the form of a straight hole, a curved hole, a stepped hole, or the like, or may be in the form of a groove, as long as the cooling medium can flow through it.

[0081] The diameter of the pressure relief channel 201 should be greater than 0.8 mm. A too small aperture is easily blocked by foreign matter, resulting in failure of the pressure relief function. The flow diameter can be increased as much as possible to improve its pressure relief capacity under the premise that the structural space allows.

[0082] In one embodiment, if Figure 5 As shown, the pressure relief channel 201 is provided with a one-way valve 204, which is used to control the second end of the pressure relief channel 201 to flow toward the first end of the pressure relief channel 201, and the first end of the pressure relief channel 201 to close toward the second end of the pressure relief channel 201.

[0083] The one-way valve 204 includes a valve seat, a spring and a spherical valve core. The spring is arranged near the side of the first inlet and outlet flow channel 101, and the valve core and the valve seat are arranged near the side of the valve chamber 114. The spring pushes the valve core and the valve seat to form a sealing relationship. If the pressure comes from the side of the valve chamber 114, the valve core can be pushed open to open the one-way valve 204. At this time, the pressure relief flow channel 201 is opened to allow the cooling medium to flow. If the pressure comes from the side of the first inlet and outlet flow channel 101, the valve core and the valve seat maintain a sealing relationship under the action of the spring, and the one-way valve 204 is in a closed state. At this time, the pressure relief flow channel 201 is closed and the cooling medium cannot flow.

[0084] In one embodiment, if Figure 3 , Figure 4 As shown, the first end of the pressure relief channel 201 is connected to the side wall of the first inlet and outlet channel 101 , and the second end of the pressure relief channel 201 is connected to the side wall of the valve chamber 114 , thereby forming a communication relationship between the first inlet and outlet channel 101 and the valve chamber 114 .

[0085] In one embodiment, if Figure 3 , Figure 4 As shown, a pressure relief chamber 115 is provided at the lower part of the valve chamber 114, and the second end of the pressure relief channel 201 is connected to the pressure relief chamber 115. The pressure relief chamber 115 in the figure is the lower space of the valve core 300. During the operation of the control valve 100, part of the high-pressure fluid will leak into the pressure relief chamber 115, and a high-pressure area will be formed inside the pressure relief chamber 115. The inlet and outlet channels will form a secondary high-pressure area relative to the pressure relief chamber 115. The flow direction of the pressure relief channel 201 is from the high-pressure area to the secondary high-pressure area. Before the control valve 100 switches the flow mode, the pressure in the high-pressure area can be released to the secondary high-pressure area through the pressure relief channel 201, so that the pressure in the high-pressure area is eliminated, which is convenient for the control valve 100 to switch the flow mode.

[0086] In one embodiment, if Figure 3 , Figure 4As shown, the control valve 100 further includes:

[0087] The first sealing seat 203 is arranged on the valve body 105 to seal the lower part of the valve chamber 114. All or part of the storage space of the pressure relief chamber 115 is arranged on the first sealing seat 203. In the figure, part of the storage space of the pressure relief chamber 115 is arranged on the first sealing seat 203.

[0088] The first sealing seat 203 can be connected and fixed to the valve body 105 by threads. A sealing ring 600 needs to be provided between the first sealing seat 203 and the valve body 105 for sealing, such as the first sealing ring 601 in the figure. The sealing ring 600 can be an O-ring made of rubber material.

[0089] In one embodiment, if Figure 3 , Figure 4 As shown, a groove 202 is provided on one side of the first sealing seat 203 adjacent to the valve chamber 114, and the groove 202 is used to form the entire storage space or part of the storage space of the pressure relief chamber 115. In the figure, the groove 202 constitutes part of the storage space of the pressure relief chamber 115. By providing the groove 202, the storage space of the pressure relief chamber 115 can be expanded, and the pressure relief chamber 115 can be formed easily. The groove 202 can also prevent the lower part of the valve core 300 from contacting the first sealing seat 203, ensuring that there is enough space for the valve core 300 to move.

[0090] In one embodiment, if Figure 1 , Figure 2 As shown, the control valve 100 is a four-way valve, and the valve body 105 is provided with the following inlet and outlet flow channels:

[0091] A first inlet and outlet flow channel 101, which is disposed on a first side of the valve body 105, and is used to be connected to the first pipeline externally and to the valve chamber 114 internally;

[0092] A second inlet and outlet flow channel 102, which is disposed on the second side of the valve body 105, and is used to be connected to the second pipeline externally and to the valve chamber 114 internally;

[0093] A third inlet and outlet flow channel 103, which is disposed on a third side of the valve body 105, and is used to be connected to a third pipeline externally and to the valve chamber 114 internally;

[0094] The fourth inlet and outlet flow channel 104 is disposed on the fourth side of the valve body 105 . The fourth inlet and outlet flow channel 104 is used to be connected to the fourth pipeline externally and to the valve chamber 114 internally.

[0095] In one embodiment, if Figure 1 , Figure 2As shown, the control valve 100 further includes:

[0096] A valve core 300 , the valve core 300 is disposed in the valve chamber 114 ;

[0097] The valve core 300 is provided with a first flow channel 301 and a second flow channel 302. When the valve core 300 is rotated, the first flow channel 301 is connected to the first inlet and outlet flow channels 101 and the second inlet and outlet flow channels 102, and the second flow channel 302 is connected to the third inlet and outlet flow channels 103 and the fourth inlet and outlet flow channels 104.

[0098] Alternatively, the first flow channel 301 connects the first inlet and outlet flow channels 101 and the third inlet and outlet flow channels 103 , and the second flow channel 302 connects the second inlet and outlet flow channels 102 and the fourth inlet and outlet flow channels 104 .

[0099] The valve core 300 is spherical, and belongs to a spherical valve core. The first flow channel 301 and the second flow channel 302 are arc-shaped groove structures arranged on the valve core 300 .

[0100] The connectivity of the above four inlet and outlet channels can be referred to Figure 7 , Figure 8 As shown, the inlet and outlet channels are connected to each other every time. The four inlet and outlet channels are respectively connected to the vehicle thermal management system, and the valve core 300 rotates inside the valve chamber 114 to switch different circulation modes. Usually, there are two modes of the four-way valve, which are referred to as mode 0 and mode 1 below.

[0101] Mode state 0: the first inlet and outlet flow channel 101 is connected with the second inlet and outlet flow channel 102, the third inlet and outlet flow channel 103 is connected with the fourth inlet and outlet flow channel 104, the high-pressure refrigerant at the compressor exhaust port flows from the first inlet and outlet flow channel 101 into the first flow channel 301 in the valve core 300, and then flows out from the second inlet and outlet flow channel 102. After passing through a series of components, the low-pressure refrigerant flows from the third inlet and outlet flow channel 103 into the second flow channel 302 in the valve core 300, and then flows out from the fourth inlet and outlet flow channel 104, and finally flows back to the compressor suction port.

[0102] Mode state 1: the first inlet and outlet flow channel 101 is connected with the third inlet and outlet flow channel 103, the second inlet and outlet flow channel 102 is connected with the fourth inlet and outlet flow channel 104, the high-pressure refrigerant at the compressor exhaust port flows from the first inlet and outlet flow channel 101 into the first flow channel 301 in the valve core 300, and then flows out from the third inlet and outlet flow channel 103. After passing through a series of components, the low-pressure refrigerant flows from the second inlet and outlet flow channel 102 into the second flow channel 302 in the valve core 300, and then flows out from the fourth inlet and outlet flow channel 104, and finally flows back to the compressor suction port.

[0103] During the operation of the above two modes, there are high and low pressure areas on both sides of the valve core 300. The higher the compressor speed, the greater the pressure difference. At this time, due to the uneven force on the valve core 300, part of the high-pressure fluid will leak from the first valve seat 106 and the valve core 300 to the pressure relief chamber 115. As the compressor speed decreases or stops, the force on the valve core 300 is close to equilibrium. At this time, the high pressure in the pressure relief chamber 115 cannot be eliminated, forcing the required torque to drive the valve core 300 to increase. The pressure relief flow channel 201 set on this basis can discharge the high-pressure medium in the closed cavity to the secondary high-pressure inlet, that is, the first inlet and outlet flow channel 101 when the compressor speed decreases, ensuring that the four-way valve does not have an additional increase in the required torque during the next switching process.

[0104] In one embodiment, if Figure 3 , Figure 4 , Figure 6 As shown, the control valve 100 further includes:

[0105] The valve stem 400, one end of which extends into the valve chamber 114 and is connected to the valve core 300, is used to drive the valve core 300 to rotate. The lower end of the valve stem 400 in the figure can be connected to the valve core 300 through a spline, which can drive the valve core 300 to rotate around the axis of the valve stem 400, and the upper end of the valve stem 400 can be connected to a driving motor, and rotate clockwise or counterclockwise under the drive of the driving motor.

[0106] In one embodiment, if Figure 3 , Figure 4 As shown, the control valve 100 further includes:

[0107] The second sealing seat 500 is provided at the second end of the valve body 105 for sealing the valve chamber 114. The valve stem 400 passes through the second sealing seat 500 and is connected to the valve core 300. The second sealing seat 500 can be connected and fixed to the valve body 105 by bolts to limit the valve stem 400 to the valve body 105. A sealing ring 600 needs to be provided between the second sealing seat 500 and the valve stem 400 for sealing. A sealing ring 600 also needs to be provided between the second sealing seat 500 and the valve body 105 for sealing. The sealing ring 600 can be an O-ring made of rubber.

[0108] In one embodiment, if Figure 1 , Figure 3 , Figure 4 As shown, the control valve 100 further includes:

[0109] The valve seat 700 is disposed in the valve chamber 114 and corresponds to the inlet and outlet flow channels. The valve seat 700 is in close contact with the valve core 300 , and the valve core 300 can rotate relative to the valve seat 700 .

[0110] One end of the valve seat 700 that contacts the valve core 300 is provided with a conical contact surface, which can form a close contact fit with the arc surface of the valve core 300 to prevent leakage at the contact portion.

[0111] In one embodiment, if Figure 1 , Figure 3 , Figure 4 As shown, the control valve 100 further includes:

[0112] The retaining ring 800 is disposed in the valve chamber 114 and sleeved on the valve seat 700 . The retaining ring 800 is used to support the valve seat 700 to prevent the valve seat 700 from deforming and ensure a close fit with the valve core 300 .

[0113] In one embodiment, if Figure 1 , Figure 3 , Figure 4 As shown, the control valve 100 further includes:

[0114] The clamping ring 900 is arranged at the inlet and outlet flow passages. The clamping ring 900 is used to limit the valve seat 700 and keep the valve seat 700 and the valve core 300 in close contact and fit.

[0115] The clamping ring 900 can be connected and fixed to the valve body 105 by threads, and the clamping ring 900 is detachable, so that parts can be loaded into the valve chamber 114 through corresponding inlet and outlet channels, or parts can be removed from the valve chamber 114 through corresponding inlet and outlet channels during maintenance.

[0116] The control valve 100 in this embodiment includes four inlet and outlet flow channels, and correspondingly includes four valve seats 700, namely: a first valve seat 106, a second valve seat 108, a third valve seat 110, and a fourth valve seat 112. The control valve 100 includes two retaining rings 800, namely: a first retaining ring 107 and a second retaining ring 109. The control valve 100 includes two clamping rings 900, namely: a first clamping ring 111 and a second clamping ring 113. The specific connection relationship of the above components is described as follows.

[0117] In one embodiment, if Figure 1 , Figure 3 , Figure 4 As shown, the control valve 100 comprises:

[0118] The first valve seat 106 is arranged in the valve chamber 114 to connect the first inlet and outlet flow channels 101 and the flow channel of the valve core 300. The valve core 300 is in close contact with the first valve seat 106 and can rotate relative to the first valve seat 106. The first valve seat 106 can prevent the flow channel of the valve core 300 from leaking inside the valve chamber 114.

[0119] The material of the first valve seat 106 can be selected from suitable materials such as plastics, metals, etc. A sealing ring 600 needs to be provided between the first valve seat 106 and the valve body 105 to implement sealing. Figure 3 The second sealing ring 602, the sealing ring 600 can be an O-ring made of rubber material.

[0120] In one embodiment, if Figure 1 , Figure 3 , Figure 4 As shown, the control valve 100 comprises:

[0121] The first retaining ring 107 is disposed in the valve chamber 114 and sleeved on the first valve seat 106. The first retaining ring 107 can support the first valve seat 106 to prevent the first valve seat 106 from deforming and ensure a close fit with the valve core 300. The material of the first retaining ring 107 can be selected from suitable materials such as stainless steel, aluminum alloy, copper alloy, etc.

[0122] In one embodiment, if Figure 1 , Figure 3 , Figure 4 As shown, the control valve 100 comprises:

[0123] The second valve seat 108 is arranged in the valve chamber 114 to connect the second inlet and outlet flow channels 102 and the flow channel of the valve core 300. The valve core 300 is in close contact with the second valve seat 108 and can rotate relative to the second valve seat 108. The second valve seat 108 can prevent the flow channel of the valve core 300 from leaking inside the valve chamber 114.

[0124] The material of the second valve seat 108 can be selected from suitable materials such as plastic, metal, etc. A sealing ring 600 needs to be arranged between the second valve seat 108 and the valve body 105 to implement sealing, and the sealing ring 600 can be selected from an O-ring made of rubber material.

[0125] In one embodiment, if Figure 1 , Figure 3 , Figure 4 As shown, the control valve 100 comprises:

[0126] The second retaining ring 109 is disposed in the valve chamber 114 and sleeved on the second valve seat 108. The second retaining ring 109 can support the second valve seat 108 to prevent the second valve seat 108 from deforming, thereby ensuring a close fit with the valve core 300. The material of the second retaining ring 109 can be selected from suitable materials such as stainless steel, aluminum alloy, and copper alloy.

[0127] In one embodiment, if Figure 1 , Figure 3 , Figure 4 As shown, the control valve 100 comprises:

[0128] The third valve seat 110 is arranged in the valve chamber 114 to connect the third inlet and outlet flow channels 103 and the flow channel of the valve core 300. The valve core 300 is in close contact with the third valve seat 110 and can rotate relative to the third valve seat 110. The third valve seat 110 can prevent the flow channel of the valve core 300 from leaking inside the valve chamber 114.

[0129] The material of the third valve seat 110 can be selected from suitable materials such as plastic, metal, etc. A sealing ring 600 needs to be arranged between the third valve seat 110 and the first clamping ring 111 to implement sealing, and the sealing ring 600 can be selected from an O-ring made of rubber material.

[0130] In one embodiment, if Figure 1 , Figure 3 , Figure 4 As shown, the control valve 100 comprises:

[0131] The first clamping ring 111 is arranged on the third inlet and outlet flow channel 103. The first clamping ring 111 is used to limit the third valve seat 110, keep the third valve seat 110 in close contact with the valve core 300, and press the third valve seat 110 against the valve core 300. The third inlet and outlet flow channel 103 also passes through the first clamping ring 111. The material of the first clamping ring 111 can be selected from suitable materials such as plastic and metal. The first clamping ring 111 can be connected and fixed to the valve body 105 through threads. A sealing ring 600 needs to be set between the first clamping ring 111 and the valve body 105 for sealing. The sealing ring 600 can be selected from an O-ring made of rubber material. The outer circumferential surface of the first clamping ring 111 can be provided with a sealing groove to install the sealing ring 600.

[0132] In one embodiment, if Figure 1 , Figure 3 , Figure 4 As shown, the control valve 100 comprises:

[0133] The fourth valve seat 112 is arranged in the valve chamber 114 to connect the fourth inlet and outlet flow channels 104 and the flow channel of the valve core 300. The valve core 300 is in close contact with the fourth valve seat 112 and can rotate relative to the fourth valve seat 112. The fourth valve seat 112 can prevent the flow channel of the valve core 300 from leaking inside the valve chamber 114.

[0134] The material of the fourth valve seat 112 can be selected from suitable materials such as plastics and metals. A sealing ring 600 needs to be provided between the fourth valve seat 112 and the second clamping ring 113 to implement sealing. Figure 3 The third sealing ring 603, the sealing ring 600 can be an O-ring made of rubber material.

[0135] In one embodiment, if Figure 1 , Figure 3 , Figure 4 As shown, the control valve 100 comprises:

[0136] The second clamping ring 113 is arranged on the fourth inlet and outlet flow channel 104. The second clamping ring 113 is used to limit the fourth valve seat 112, keep the fourth valve seat 112 in close contact with the valve core 300, and press the fourth valve seat 112 against the valve core 300. The fourth inlet and outlet flow channel 104 also passes through the second clamping ring 113. The material of the second clamping ring 113 can be selected from suitable materials such as plastic and metal. The second clamping ring 113 can be connected and fixed to the valve body 105 through a thread. A sealing ring 600 needs to be arranged between the second clamping ring 113 and the valve body 105 to implement sealing. Figure 3 The fourth sealing ring 604 in the embodiment can be an O-ring made of rubber material, and a sealing groove can be provided on the outer circumferential surface of the second clamping ring 113 to install the fourth sealing ring 604.

[0137] An embodiment of the present utility model further provides a thermal management system, comprising the control valve 100 described in any one of the above embodiments.

[0138] In one embodiment, the thermal management system is used to adjust the temperature of the interior of the vehicle, and can also be used to adjust the temperature of components such as motors, on-board computers, batteries, and control modules to perform heating or cooling.

[0139] An embodiment of the utility model further provides a vehicle, comprising the thermal management system described in any one of the above embodiments.

[0140] The utility model provides a control valve, a thermal management system and a vehicle, which have the following characteristics:

[0141] By adding a pressure relief channel between the valve chamber and the inlet and outlet flow channels, the pressure relief channel connects the high-pressure area of ​​the valve chamber and the sub-high-pressure area of ​​the inlet and outlet flow channels, and can release the pressure in the high-pressure area to the sub-high-pressure area, ensuring that the pressure in the high-pressure area is eliminated before the control valve switches between different modes, ensuring that the control valve has no additional required torque during the next switching process, preventing the risk of actuator jamming due to excessive load caused by excessive required torque, and improving the operating reliability of the control valve.

[0142] The processes and steps described in all the above preferred embodiments are only examples. Unless adverse effects occur, various processing operations can be performed in a sequence different from the sequence of the above processes. The sequence of steps in the above processes can also be increased, merged or deleted according to actual needs.

[0143] In understanding the scope of the present invention, the term "comprising" and its derivatives as used herein are intended to be open terms, which specify the existence of the recorded features, elements, components, groups, wholes and / or steps, but do not exclude the existence of other unrecorded features, elements, components, groups, wholes and / or steps. This concept also applies to words with similar meanings, such as the terms "including", "having" and their derivatives.

[0144] The terms "attached" or "attached" as used herein include: a configuration where an element is directly secured to another element by directly securing the element to the other element; a configuration where an element is indirectly secured to another element by securing the element to an intermediate member which in turn is secured to the other element; and a configuration where one element is integral with the other element, i.e., one element is substantially a part of the other element. This definition also applies to words with similar meanings such as "connect," "connect," "couple," "mount," "bond," "fix," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent the amount of deviation that modifies the term such that the end result will not be significantly changed.

[0145] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. The features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.

[0146] The utility model has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model.

Claims

1. A control valve, characterized in that: include: A valve body (105), the valve body (105) comprising a plurality of inlet and outlet flow channels, a valve chamber (114) and a pressure relief flow channel (201), the valve chamber (114) being arranged inside the valve body (105), and the inlet and outlet flow channels being in communication with the valve chamber (114); The first end of the pressure relief channel (201) is connected to any one of the inlet and outlet channels, and the second end of the pressure relief channel (201) is connected to the valve chamber (114); The pressure relief flow channel (201) is a one-way flow channel, and the flow direction is from the second end of the pressure relief flow channel (201) toward the first end of the pressure relief flow channel (201).

2. The control valve according to claim 1, characterized in that: The pressure relief flow channel (201) is provided with a one-way valve (204), and the one-way valve (204) is used to control the second end of the pressure relief flow channel (201) to flow toward the first end of the pressure relief flow channel (201), and the first end of the pressure relief flow channel (201) to close toward the second end of the pressure relief flow channel (201).

3. The control valve according to claim 1, characterized in that: The first end of the pressure relief channel (201) is connected to the side wall of the inlet and outlet channels, and the second end of the pressure relief channel (201) is connected to the side wall of the valve chamber (114).

4. The control valve according to claim 1, characterized in that: A pressure relief chamber (115) is provided at the first end of the valve chamber (114), and the second end of the pressure relief channel (201) is connected to the pressure relief chamber (115).

5. The control valve according to claim 4, characterized in that: Also includes: A first sealing seat (203), wherein the first sealing seat (203) is arranged on the valve body (105) to seal the first end of the valve chamber (114), and all or part of the storage space of the pressure relief chamber (115) is arranged on the first sealing seat (203).

6. The control valve according to claim 5, characterized in that A groove (202) is provided on one side of the first sealing seat (203) adjacent to the valve chamber (114), and the groove (202) is used to constitute the entire storage space or part of the storage space of the pressure relief chamber (115).

7. The control valve according to claim 1, characterized in that: The valve body (105) is provided with the following inlet and outlet flow passages: A first inlet and outlet flow channel (101), the first inlet and outlet flow channel (101) being arranged on a first side of the valve body (105), the first inlet and outlet flow channel (101) being used to be connected to a first pipeline externally and to be connected to the valve chamber (114) internally; A second inlet and outlet flow channel (102), the second inlet and outlet flow channel (102) being arranged on a second side of the valve body (105), the second inlet and outlet flow channel (102) being used for connecting to a second pipeline externally and connecting to the valve chamber (114) internally; A third inlet and outlet flow channel (103), the third inlet and outlet flow channel (103) being arranged on a third side of the valve body (105), the third inlet and outlet flow channel (103) being used to be connected to a third pipeline externally and to be connected to the valve chamber (114) internally; A fourth inlet and outlet flow channel (104), the fourth inlet and outlet flow channel (104) is arranged on a fourth side of the valve body (105), and the fourth inlet and outlet flow channel (104) is used to connect to a fourth pipeline externally and to connect to the valve chamber (114) internally.

8. The control valve according to claim 7, characterized in that: Also includes: A valve core (300), wherein the valve core (300) is disposed in the valve chamber (114); The valve core (300) is provided with a first flow channel (301) and a second flow channel (302); when the valve core (300) is rotated, the first flow channel (301) is connected to the first inlet and outlet flow channels (101) and the second inlet and outlet flow channels (102), and the second flow channel (302) is connected to the third inlet and outlet flow channels (103) and the fourth inlet and outlet flow channels (104); Alternatively, the first flow channel (301) connects the first inlet and outlet flow channel (101) and the third inlet and outlet flow channel (103), and the second flow channel (302) connects the second inlet and outlet flow channel (102) and the fourth inlet and outlet flow channel (104).

9. The control valve according to claim 8, characterized in that Also includes: A valve stem (400), one end of which extends into the valve chamber (114) and is connected to the valve core (300), and the valve stem (400) is used to drive the valve core (300) to rotate.

10. The control valve according to claim 9, characterized in that Also includes: A second sealing seat (500), wherein the second sealing seat (500) is arranged at the second end of the valve body (105) for sealing the valve chamber (114), and the valve stem (400) passes through the second sealing seat (500) and is connected to the valve core (300).

11. The control valve according to claim 8, characterized in that Also includes: A valve seat (700), wherein the valve seat (700) is disposed in the valve chamber (114) and corresponds to the inlet and outlet flow channels, the valve seat (700) is in close contact with the valve core (300), and the valve core (300) is capable of rotating relative to the valve seat (700).

12. The control valve according to claim 11, characterized in that Also includes: A retaining ring (800) is disposed in the valve chamber (114) and sleeved on the valve seat (700), and the retaining ring (800) is used to support the valve seat (700).

13. The control valve according to claim 11, characterized in that Also includes: A clamping ring (900) is arranged at the inlet and outlet flow channels, and the clamping ring (900) is used to limit the valve seat (700) and keep the valve seat (700) in close contact with the valve core (300).

14. The control valve according to claim 13, characterized in that Also includes: a sealing ring (600), wherein the sealing ring (600) is sleeved on the valve seat (700), and the sealing ring (600) is used to seal the gap between the valve seat (700) and the valve body (105), and / or the gap between the valve seat (700) and the clamping ring (900); Alternatively, the sealing ring (600) is sleeved on the clamping ring (900), and the sealing ring (600) is used to seal the gap between the clamping ring (900) and the valve body (105).

15. A thermal management system, characterized in that: Comprising a control valve according to any one of claims 1-14.

16. A vehicle, characterized in that: Comprising a thermal management system according to claim 15.

Images