A control valve, heat pump system, and vehicle

Abstract

The application relates to a control valve, a heat pump system and a vehicle, the control valve comprising a valve body, a valve seat and a sealing assembly; the valve body is formed with a first opening and a second opening; the valve seat is arranged in the valve body; the sealing assembly is movably arranged in the valve body and is configured to be movable relative to the valve seat to be away from or abut against the valve seat so as to communicate or cut off the first opening and the second opening; wherein when the sealing assembly abuts against the valve seat, the valve seat is flexibly connected to the sealing assembly to cut off the communication of the first opening and the second opening. The application aims to solve the technical problems of poor sealing performance and high cost of the control valve in the related art.

Description

Technical Field

[0001] This application relates to the field of valve technology, and more particularly to a control valve, a heat pump system, and a vehicle. Background Technology

[0002] Control valves consist of various components such as the valve body, valve needle assembly, valve core, transmission rod, and transmission nut. The large number of components and the demanding assembly work require skilled workers. Related technologies often employ small-diameter valve needle assemblies and valve seat seals, which are hard seals. To ensure a tight seal, high coaxiality is required, leading to higher costs and poorer sealing performance. Summary of the Invention

[0003] This application provides a control valve, a heat pump system, and a vehicle, aiming to solve the technical problems of poor sealing performance and high cost of control valves in related technologies.

[0004] To achieve the above objectives, according to a first aspect of this application, a control valve is provided, comprising:

[0005] The valve body has a first opening and a second opening;

[0006] A valve seat is disposed within the valve body;

[0007] A sealing assembly, movably disposed within the valve body, is configured to be movable relative to the valve seat to move away from or abut against the valve seat to connect or disconnect the first opening and the second opening;

[0008] When the sealing assembly abuts against the valve seat, the valve seat is flexibly connected to the sealing assembly to disconnect the communication between the first opening and the second opening.

[0009] Optionally, the valve seat includes a body and a sealing element, the sealing element being disposed on the body, the body forming a first channel, the first channel communicating with the second opening;

[0010] The sealing assembly includes a first seal, the first seal having a second channel communicating with the first opening, and the first seal being configured to be movable relative to the plugging member;

[0011] When the first seal comes into contact with the plugging member, the plugging member is flexibly connected to the first seal to block the second channel.

[0012] Optionally, the Young's modulus of the first seal is different from that of the plug.

[0013] Optionally, one of the first seal and the plugging member is made of a metallic material, and the other is made of a non-metallic material.

[0014] Optionally, the end of the plugging member facing the first seal is tapered, and when the plugging member abuts against the first seal, at least a portion of the plugging member extends into the second channel.

[0015] Optionally, the sealing element includes a valve needle and a first elastic element, the first elastic element abutting between the valve needle and the body, such that the first elastic element abuts against the valve needle in the direction toward the first sealing element.

[0016] Optionally, a baffle is provided at one end of the valve needle facing the first seal, one end of the first elastic member abuts against the side of the baffle facing the body, and the other end of the first elastic member abuts against the side of the body facing the first seal.

[0017] Optionally, a retaining ring is provided at the end of the valve needle away from the first seal. When the sealing member abuts against the first seal, the retaining ring abuts against the side of the body away from the first seal.

[0018] Optionally, the second channel includes a first chamber disposed along the axial direction of the valve body, the first chamber penetrating one end of the first seal toward the plugging member, such that the first chamber communicates with the second opening, and at least one first through hole communicating with the first opening is provided through the side wall of the first chamber;

[0019] When the first seal and the valve seat are far apart, the first chamber is connected to the first channel.

[0020] Optionally, the first seal is movably disposed within the valve body and has a first position and a second position relative to the valve body;

[0021] When the first seal is in the first position, the sealing member abuts against the side wall of the first chamber to block the first chamber and the second opening;

[0022] When the first seal is in the second position, the plugging member is away from the first seal, and the first chamber is in communication with the second opening.

[0023] Optionally, the control valve further includes:

[0024] A transmission component is disposed within the valve body and is threadedly engaged with the sealing assembly;

[0025] A limiting component, disposed within the valve body, is used to limit the axial movement of the transmission member along the valve body; and,

[0026] A drive module, connected to the transmission component, is used to drive the transmission component to rotate axially around the valve body, so as to drive the sealing assembly away from or against the valve seat.

[0027] Optionally, the sealing assembly includes a first seal and a second seal that are movably fitted, the first seal being at least partially located within the second seal, the first seal being threadedly connected to the transmission member, the second seal having a third channel communicating with the first opening, the second seal being configured to be movable relative to the valve seat, and when the second seal abuts against the valve seat, the second seal is flexibly connected to the valve seat to cut off the third channel and the second opening.

[0028] Optionally, the Young's modulus of the second seal is different from that of the valve seat.

[0029] Optionally, one of the second seal and the valve seat is made of a metallic material, and the other is made of a non-metallic material.

[0030] Optionally, the second seal is movably disposed within the valve body and has a third position and a fourth position relative to the valve body;

[0031] When the second seal is in the third position, the second seal is moved away from the valve seat to form a fourth channel connecting the first opening and the second opening;

[0032] When the second seal is in the fourth position, the second seal abuts against the valve seat to block the fourth channel.

[0033] Optionally, the first seal has a first abutting portion, and the second seal has a second abutting portion, wherein the first abutting portion can abut against the second abutting portion, so that the first seal can drive the second seal to move toward the third position.

[0034] Optionally, the control valve further includes a second elastic element, one end of which abuts against the second seal and presses against the second seal toward the fourth position.

[0035] Optionally, the third channel includes a second through hole arranged along the axial direction of the valve body, and at least one third through hole communicating with the first opening is passed through the wall of the second through hole;

[0036] Wherein, at least a portion of the first seal is located within the second through hole, and when the first seal is far from the valve seat, the second through hole communicates with the second opening.

[0037] According to a second aspect of this application, a heat pump system is provided, including the control valve described above.

[0038] According to a third aspect of this application, a vehicle is also provided, including the aforementioned heat pump system.

[0039] The beneficial effects of this application are:

[0040] In the technical solution of this application, the valve body has a first opening and a second opening; a valve seat is disposed within the valve body; a sealing assembly is movably disposed within the valve body, and the sealing assembly is configured to move relative to the valve seat to move away from or abut against the valve seat, thereby connecting or disconnecting the first opening and the second opening; when the sealing assembly abuts against the valve seat, the valve seat is flexibly connected to the sealing assembly to disconnect the connection between the first opening and the second opening. Specifically, because the sealing assembly and the valve seat are flexibly connected, one of them will undergo flexible deformation when abutting against the valve seat, achieving a soft seal, improving the sealing effect, and avoiding leakage problems; at the same time, since the sealing assembly and the valve seat are soft seals, the coaxiality requirements of the sealing assembly and the valve seat are not high, which can reduce the processing cost of the parts; thereby solving the technical problems of poor sealing performance and high cost of control valves in related technologies.

[0041] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0044] Figure 1 This is a schematic diagram of the structure of one embodiment of the control valve provided in this application;

[0045] Figure 2 yes Figure 1 Full sectional view of the central control valve;

[0046] Figure 3 yes Figure 1 A schematic diagram showing the cooperation between the central transmission component and the first seal.

[0047] Figure 4 yes Figure 1 Top view of the middle valve seat;

[0048] Figure 5 yes Figure 4 Sectional view of BB;

[0049] Figure 6 yes Figure 1 A schematic diagram showing the fit between the first sealing element and the plugging element;

[0050] Figure 7 yes Figure 1 Schematic diagram of the structure of the second seal;

[0051] Figure 8 yes Figure 1 A schematic diagram showing the fit between the first seal, the second seal, and the valve seat;

[0052] Figure 9 yes Figure 2 Enlarged diagram of point A in the middle.

[0053] Explanation of reference numerals in the attached figures:

[0054] 100. Control valve; 101. Valve body; 102. First opening; 103. Second opening; 104. Valve seat; 105. Sealing assembly; 106. Body; 107. Sealing element; 108. First channel; 109. First seal; 110. Second channel; 111. Valve needle; 112. First elastic element; 113. Baffle; 114. Retaining ring; 115. First chamber; 116. First through hole; 117. Transmission 118. Moving part; 119. Limiting component; 120. Drive module; 121. Second seal; 122. Third channel; 123. Fourth channel; 124. First abutment part; 125. Second abutment part; 126. Second through hole; 127. Third through hole; 128. Snap ring; 129. Bearing; 130. Coil; 131. Rotor; 132. Valve core; 133. Snap-fit ​​groove; 134. Step. Detailed Implementation

[0055] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0056] Control valves consist of various components such as the valve body, valve needle assembly, valve core, transmission rod, and transmission nut. The large number of components necessitates a large assembly workforce. Related technologies often employ small-diameter valve needle assemblies and valve seat seals. Both the valve needle assembly and valve seat are made of metal, and the seal is a hard seal. To ensure sealing performance, a high degree of coaxiality is required, resulting in higher costs and poorer sealing performance.

[0057] In view of this, this application proposes a control valve 100, Figures 1 to 9 This is a schematic diagram of an embodiment of the control valve 100 provided in this application. The control valve 100 provided in this application has a simple structure, good sealing performance, and low cost. The control valve 100 will be described in detail below with reference to the main drawings.

[0058] Please see Figure 1 and Figure 2 This application provides a control valve 100, which includes a valve body 101, a valve seat 104, and a sealing assembly 105. The valve body 101 has a first opening 102 and a second opening 103. The valve seat 104 is disposed within the valve body 101. The sealing assembly 105 is movably disposed within the valve body 101 and is configured to be movable relative to the valve seat 104 to move away from or abut against the valve seat 104 to connect or disconnect the first opening 102 and the second opening 103. When the sealing assembly 105 abuts against the valve seat 104, the valve seat 104 is flexibly connected to the sealing assembly 105 to disconnect the connection between the first opening 102 and the second opening 103.

[0059] In the technical solution of this application, the valve body 101 has a first opening 102 and a second opening 103; the valve seat 104 is disposed inside the valve body 101; the sealing assembly 105 is movably disposed inside the valve body 101, and the sealing assembly 105 is configured to be movable relative to the valve seat 104 to move away from or abut against the valve seat 104, so as to connect or disconnect the first opening 102 and the second opening 103; when the sealing assembly 105 abuts against the valve seat 104, the valve seat 104 is flexibly connected to the sealing assembly 105 to disconnect the connection between the first opening 102 and the second opening 103. Specifically, since the sealing assembly 105 and the valve seat 104 are flexibly connected, one of them will undergo flexible deformation when the sealing assembly 105 and the valve seat 104 come into contact, achieving a soft seal, improving the sealing effect, and avoiding leakage problems. At the same time, since the sealing assembly 105 and the valve seat 104 are soft seals, the coaxiality requirements of the sealing assembly 105 and the valve seat 104 are not high, which can reduce the processing cost of the parts. Thus, it solves the technical problems of poor sealing performance and high cost of control valve 100 in related technologies.

[0060] It should be noted that the first opening 102 can be either an inlet or an outlet, and similarly, the second opening 103 can be either an inlet or an outlet. For ease of description, the following will use the first opening 102 as an inlet and the second opening 103 as an outlet as an example to describe the specific structure of the control valve 100.

[0061] In some embodiments, please refer to Figure 4 and Figure 5The valve seat 104 includes a body 106 and a sealing member 107. The body 106 forms a first channel 108 and is located between a first opening 102 and a second opening 103. The first channel 108 connects the first opening 102 and the second opening 103. The sealing member 107 is located on the body 106 and cooperates with the sealing assembly 105 to block or open the first channel 108, thereby connecting or cutting off the first opening 102 and the second opening 103. Specifically, the sealing assembly 105 includes a first sealing member 109, which is located inside the valve body 101. The first sealing member 109 has a second channel 110 that communicates with the first opening 102. More specifically, when the control valve 100 is in the open state, fluid enters the valve body 101 through the first opening 102, which is connected to the second channel 110. The fluid enters the second channel 110 from the first opening 102, separating the plugging member 107 from the first sealing member 109. The fluid then enters the first channel 108 from the second channel 110 and flows out from the second opening 103. When the valve body 101 is in the closed state, the plugging member 107 abuts against the first sealing member 109, flexibly abutting against the second channel 110, thereby disconnecting the second channel 110 from the second opening 103. When fluid enters the second channel 110, due to the blocking effect of the plugging member 107, the fluid cannot flow out of the second channel 110, thus achieving the shut-off function.

[0062] It should be noted that the Young's modulus of the first sealing element 109 is different from that of the plugging element 107. Young's modulus is a physical quantity describing the resistance of a solid material to deformation. The difference in Young's modulus between the first sealing element 109 and the plugging element 107 indicates that they are less prone to elastic deformation under the same external force. In this embodiment, the plugging element 107 and the first sealing element 109 are flexibly connected. When they come into contact, due to the difference in Young's modulus, one or both may undergo elastic deformation. The deformed portion can fill the gap between them, thereby ensuring the sealing effect between the plugging element 107 and the first sealing element 109.

[0063] Furthermore, since the first seal 109 and the plugging member 107 are flexibly connected, the coaxiality requirement between them can be reduced. Even if the coaxiality is low, a gap will exist when the first seal 109 and the plugging member 107 abut. In this case, one of the first seal 109 and the plugging member 107 undergoes elastic deformation, and the deformed part can fill the gap, thereby ensuring the sealing performance between them. This reduces the coaxiality requirement, thereby reducing the processing time and cost of the first seal 109 and the plugging member 107, and consequently reducing the cost of the control valve 100, without affecting the sealing performance.

[0064] It should be noted that the specific materials of the first sealing element 109 and the sealing element 107 are not limited, as long as a flexible connection can be achieved. For example, one of the first sealing element 109 and the sealing element 107 may be made of a metallic material, while the other may be made of a non-metallic material. More specifically, when the first sealing element 109 is made of a metallic material, it can be made of steel, aluminum alloy, copper alloy, etc.; when the sealing element 107 is made of a non-metallic material, it can be made of rubber, plastic, etc.

[0065] Optionally, the main body 106 is also configured to have a first mounting hole, in which the sealing member 107 is installed. The end of the sealing member 107 facing the first sealing member 109 is tapered, and the tapered shape can adjust the flow rate of the fluid. When the tapered end of the sealing member 107 is fully inserted into the second channel 110, the sealing member 107 abuts against the first sealing member 109, thereby achieving a sealing effect. When the sealing member 107 moves away from the first sealing member 109, the opening between the sealing member 107 and the second channel 110 becomes larger and larger as the sealing member 107 moves, thereby achieving the adjustment of the flow rate of the fluid.

[0066] In some embodiments, the sealing member 107 includes a valve needle 111 and a first elastic member 112. The valve needle 111 abuts against the sealing part through the first elastic member 112. Specifically, the connection relationship between the valve needle 111 and the first elastic member 112 is not limited and can be set according to the actual situation.

[0067] In some embodiments, one end of the first elastic member 112 abuts against the side of the valve seat 104 facing the first seal 109, and the other end of the first elastic member 112 abuts against the side of the valve needle 111 facing the valve seat 104. Through the elastic restoring force of the first elastic member 112, the valve needle 111 abuts against the first seal 109.

[0068] In other embodiments, please refer to Figure 4and Figure 5 A baffle 113 is provided at one end of the valve needle 111 facing the first seal 109. One end of the first elastic member 112 abuts against the side of the baffle 113 facing the valve seat 104, and the other end of the first elastic member 112 abuts against the side of the valve seat 104 facing the first seal 109. This arrangement improves the stability of the connection between the first elastic member 112 and the valve needle 111 and prevents the first elastic member 112 from detaching from the valve needle 111.

[0069] Furthermore, in some embodiments, the first elastic element 112 includes a spring that is sleeved on the valve needle 111.

[0070] More specifically, a first mounting hole is formed on the valve seat 104, and the valve needle 111 is movably disposed in the first mounting hole. The end of the valve needle 111 extending towards the first seal 109 extends out of the first mounting hole, so that the valve needle 111 can abut against the first seal 109. A first elastic member 112 is sleeved on the valve needle 111. One end of the first elastic member 112 abuts against the side of the baffle 113 facing the valve seat 104, and the other end of the first elastic member 112 abuts against the side of the valve seat 104 facing the first seal 109. The function of the first elastic member 112 is to make the valve needle 111 and the first seal 109 elastically connected. When the valve needle 111 abuts against the first seal 109, it has a certain buffering amount to avoid damage caused by hard contact. At the same time, when the valve needle 111 abuts against the first seal 109, the first elastic member 112 also applies a rebound force, so that the valve needle 111 and the first seal 109 abut tightly, improving the sealing performance. Meanwhile, the elastic effect of the first elastic element 112 can also help control the flow rate.

[0071] In some embodiments, please refer to Figure 5 A retaining ring 114 is provided at the end of the valve needle 111 away from the first seal 109. The valve needle 111 is connected to the valve seat 104 through the retaining ring 114 and the first elastic member 112. Specifically, the retaining ring 114 is provided at the end of the valve needle 111 near the first seal 109, one end of the first elastic member 112 abuts against the end of the valve needle 111 facing the first seal 109, and the other end of the first elastic member 112 abuts against the side of the valve seat 104 facing the first seal 109. In this way, one end of the valve needle 111 is relatively fixed to the valve seat 104. Due to the action of the elastic member, when the valve needle 111 is placed on the valve seat 104, the first elastic member 112 will rebound, causing the valve needle 111 to move towards the first seal 109. At this time, the retaining ring 114 abuts against the end of the valve seat 104 away from the first seal 109, thereby making the valve needle 111 relatively fixed to the valve seat 104.

[0072] In some embodiments, the first seal 109 is movably disposed within the valve seat 104 and has a first position and a second position relative to the valve seat 104. When the first seal 109 is in the first position, the plugging member 107 abuts against the sidewall of the second channel 110, thereby achieving the abutment between the first seal 109 and the plugging member 107 to cut off the communication between the second channel 110 and the first channel 108. When the first seal 109 is in the second position, the first seal 109 is away from the plugging member 107, so that the second channel 110 communicates with the first channel 108, thereby allowing fluid to flow from the second channel 110 to the first channel 108, then from the first channel 108 to the second opening 103, and finally out of the second opening 103.

[0073] In some embodiments, please continue reading Figure 2 and Figure 3 The second channel 110 includes a first chamber 115 and a first through hole 116. The first chamber 115 is axially disposed along the valve seat 104 and extends through one end of the first seal 109 toward the plugging member 107. When the first seal 109 is in the first position, the plugging member 107 abuts against the side wall of the first chamber 115, thereby cutting off the communication between the first chamber 115 and the first channel 108. Further, at least one first through hole 116 extends through the side wall of the first chamber 115, connecting the first chamber 115 and the first opening 102. (See also...) Figure 6 When the first seal 109 is in the first position, the sealing member 107 abuts against the side wall of the first chamber 115, cutting off the first chamber 115 and the first channel 108. Fluid enters from the first opening 102 and flows into the first chamber 115 through the first through hole 116. Because the sealing member 107 abuts against the side wall of the first chamber 115, the fluid cannot flow out of the first chamber 115, thus achieving the cut-off. When the first seal 109 is in the second position, the sealing member 107 separates from the first chamber 115, and the first chamber 115 communicates with the first channel 108. Fluid enters from the first opening 102, flows into the first chamber 115 through the first through hole 116, then enters the first channel 108 from the first chamber 115, and finally flows out from the second opening 103.

[0074] Please see Figure 2 and Figure 9The control valve 100 also includes a transmission component 117, a limiting component 118, and a drive module 119. The transmission component 117 is located inside the valve body 101 and is threadedly engaged with the sealing component 105. The limiting component 118 is located inside the valve body 101 and is used to limit the axial movement of the transmission component 117 along the valve body 101. The drive module 119 is connected to the transmission component 117 and is used to drive the transmission component 117 to rotate around the valve body 101, so as to drive the sealing component 105 away from or against the valve seat 104. In this embodiment, the valve body 101 has a first opening 102 and a second opening 103; the sealing assembly 105 is movably disposed within the valve body 101 and is restricted from rotation by the limiting assembly 118; the transmission member 117 is disposed within the valve body 101 and is threadedly engaged with the sealing assembly 105; the limiting assembly 118 is used to restrict the movement of the transmission member 117 along the axial direction of the valve body 101; the drive module 119 is used to drive the transmission member 117 to rotate around the axial direction of the valve body 101, so as to drive the sealing assembly 105 to open or close the first opening 102 and the second opening 103. When the transmission component 117 is driven by the drive module 119, the limiting component 118 restricts the transmission component 117, allowing it to rotate only along the axial direction of the valve body 101 and preventing it from moving along the same direction. The sealing component 105 is threadedly engaged with the transmission component 117 and is driven by the transmission component 117 to move along the axis of the valve body 101, enabling the sealing component 105 to open or close the first opening 102 and the second opening 103. During the rotation of the transmission component 117, driven by the drive module 119, it can only rotate but cannot move up and down along the axial direction of the valve body 101 due to the limiting effect of the limiting component 118. The sealing component 105 is threadedly connected to the limiting component and can only move up and down along the axial direction of the valve body 101, preventing it from rotating. This avoids the control valve 100 from jamming.

[0075] In some embodiments, please refer to Figure 2 and Figure 7The sealing assembly 105 includes a first sealing member 109 and a second sealing member 120 that are movably fitted together. The first sealing member 109 is at least partially located within the second sealing member 120, and the first sealing member 109 is threadedly fitted with the transmission member 117. The second sealing member 120 is provided with a third channel 121 that communicates with the first opening 102. Specifically, fluid enters from the first opening 102, and the third channel 121 communicates with the first opening 102 and enters into the third channel 121. The first sealing member 109 is located within the second sealing member 120, and a first chamber 115 is provided within the first sealing member 109. A first through hole 116 penetrates the side wall of the first chamber 115, and fluid in the third channel 121 enters into the first chamber 115 through the first through hole 116. More specifically, the first seal 109 moves between a first position and a second position relative to the second seal 120; when the first seal 109 is in the first position, it abuts against the plug 107, and fluid enters the third channel 121 from the first opening 102. The third channel 121 communicates with the first chamber 115 through the first through hole 116, and the fluid then enters the first chamber 115. Because the plug 107 abuts against the first seal 109, the fluid cannot flow out of the first chamber 115, thereby achieving... The connection between the second opening 103 and the third channel 121 is cut off; when the first seal 109 is in the second position, the sealing member 107 is separated from the first seal 109, and the fluid enters the third channel 121 from the first opening 102. The third channel 121 is connected to the first channel 108 through the first through hole 116, and the fluid enters the first channel 108. The opening of the first chamber 115 is opened, and the fluid enters the first channel 108 and flows into the second opening 103, thereby realizing the connection between the second opening 103 and the third channel 121.

[0076] Optionally, the Young's modulus of the second seal 120 is different from that of the valve seat 104. Young's modulus is a physical quantity describing the resistance of a solid material to deformation. The difference between the Young's modulus of the second seal 120 and the valve seat 104 indicates that they are less prone to elastic deformation under the same external force. In this embodiment, the valve seat 104 and the second seal 120 are flexibly connected. When they come into contact, due to the difference in Young's modulus, one or both may undergo elastic deformation. The deformed portion can fill the gap between them, thereby ensuring the sealing effect between the valve seat 104 and the second seal 120.

[0077] Furthermore, since the second seal 120 and the valve seat 104 are flexibly connected, the coaxiality requirement between them can be reduced. Even if the coaxiality is low, a gap will exist when the second seal 120 and the valve seat 104 abut. In this case, one of them will undergo elastic deformation, and the deformed portion can fill the gap, thus ensuring the sealing performance between them. This reduces the coaxiality requirement, thereby reducing the processing time and cost of the second seal 120 and the valve seat 104, ultimately lowering the cost of the control valve 100 without affecting the sealing performance.

[0078] It should be noted that the specific materials of the second seal 120 and the valve seat 104 are not limited, as long as a flexible connection can be achieved. For example, one of the materials of the second seal 120 and the valve seat 104 can be a metal, and the other can be a non-metallic material. More specifically, when the valve seat 104 is a metal, it can be made of steel, aluminum alloy, copper alloy, etc.; when the material of the second seal 120 is a non-metallic material, it can be made of rubber, plastic, etc.

[0079] Please continue reading. Figure 7 and Figure 8 In this embodiment, the second seal 120 is disposed in the first channel 108, the first opening 102 is formed on the side wall of the first channel 108, the second opening 103 is formed at the end of the first channel 108, the second seal 120 is disposed between the first opening 102 and the second opening 103, the valve seat 104 is disposed in the second opening 103, the second seal 120 is disposed in the first opening 102, and the second seal 120 abuts against the valve seat 104, thereby disconnecting the first channel 108 on the valve seat 104 from the first opening 102.

[0080] Furthermore, the second seal 120 is movably disposed within the valve body 101 and has a third position and a fourth position relative to the valve seat 104. When the second seal 120 is in the third position, the second seal 120 is separated from the valve seat 104, forming a fourth channel 122 between the second seal 120 and the valve seat 104. The fourth channel 122 connects the first opening 102 and the second opening 103. Fluid enters from the first opening 102 and flows directly into the fourth channel 122. The fourth channel 122 connects to the first channel 108, and the fluid enters the second opening 103 through the first channel 108. When the second seal 120 is in the fourth position, the second seal 120 abuts against the valve seat 104, and the second seal 120 closes the fourth channel 122.

[0081] The movement of the second seal 120 is not limited and can be selected according to the actual situation. In some embodiments, the second seal 120 is driven by a separate drive module 119. In some embodiments, the second seal 120 is connected to the first seal 109 and is driven by the first seal 109. For details, please refer to [link to relevant documentation]. Figure 7 and Figure 8 The first sealing member 109 has a first abutting portion 123, which surrounds the outer side of the first sealing member 109. The second sealing member 120 has a second abutting portion 124, which is disposed on the inner sidewall of the third channel 121. When the first sealing member 109 moves from the first position to the second position, the first abutting portion 123 moves toward the second abutting portion 124 until the first abutting portion 123 abuts against the second abutting portion 124. At this time, the first sealing member 109 can drive the second sealing member 120. The first seal 109 continues to move until it is in the second position, at which point the second seal 120 is in the third position, separating from the valve seat 104. A fourth channel 122 is formed between the second seal 120 and the valve seat 104, and the fourth channel 122 connects the first opening 102 and the second opening 103. Fluid enters from the first opening 102 and flows directly into the fourth channel 122, which connects to the first channel 108. The fluid passes through the first channel 108 and enters the second opening 103.

[0082] Furthermore, the control valve 100 includes a second elastic member 125, one end of which abuts against the second seal 120, and the second elastic member 125 presses against the second seal 120 toward the fourth position. When it is necessary to close the control valve 100, the first seal 109 moves to the first position, at which time the first abutting portion 123 and the second abutting portion 124 separate, and the second seal 120 moves toward the valve seat 104 under the elastic restoring force of the second elastic member 125 until the second seal 120 abuts against the valve seat 104, and the second seal 120 closes the fourth channel 122.

[0083] Furthermore, in this embodiment, the second seal 120 will only move along the axial direction of the valve body 101, and will not rotate relative to the valve body 101. Opening and closing are achieved through a single movement, avoiding situations such as jamming.

[0084] In some embodiments, please continue reading Figure 7The third channel 121 includes a second through hole 126 and a third through hole 127. The second through hole 126 extends axially along the valve body 101. A first seal 109 is movably disposed in the second through hole 126. The side of the second through hole 126 away from the first seal 109 communicates with the second opening 103. The third through hole 127 penetrates the side wall of the second through hole 126 and communicates with the first opening 102. Specifically, when the first seal 109 is in the first position, the sealing part of the first seal 109 abuts against the valve body. At this time, the first seal 109 fills the second through hole 126, disconnecting the connection between the second through hole 126 and the first channel 108, so that the fluid in the third through hole 127 cannot enter the first channel 108, thereby achieving the shut-off of the first opening 102 and the second opening 103. When the first seal 109 is in the second position, fluid enters from the first opening 102, passes through the third through hole 127 into the second through hole 126, and the second through hole 126 communicates with the first chamber 115 through the first through hole 116. When the fluid enters the first chamber 115, the first seal 109 separates from the sealing part, the opening end of the first chamber 115 is opened, and the fluid enters the first channel 108 from the first chamber 115 and flows through the first channel 108 to the second opening 103, thereby realizing the connection between the first opening and the second opening.

[0085] It should be noted that the sealing component 105 and the transmission component 117 are threaded together. The threaded connection method between the sealing component 105 and the transmission component 117 is not limited and can be selected according to the actual situation.

[0086] In some embodiments, please refer to Figure 2 and Figure 3 A first external thread is formed on the outer side wall of the transmission member 117 near the sealing assembly 105, and a first receiving groove is formed on the end of the sealing assembly 105 near the transmission member 117. A first internal thread is formed on the inner side wall of the first receiving groove. The first external thread and the first internal thread cooperate to make the transmission member 117 and the sealing assembly 105 threadedly connected.

[0087] In another embodiment, a second receiving groove is formed at one end of the transmission member 117 near the sealing assembly 105, and a second internal thread is formed on the inner sidewall of the second receiving groove. A second external thread is formed on the outer sidewall of the sealing assembly 105 near the end of the transmission member 117. The second external thread engages with the second internal thread so that the transmission member 117 is threadedly connected to the sealing assembly 105.

[0088] Please see Figure 2 In some embodiments, the drive module 119 is located on the valve body 101 and is connected to the transmission component 117 to drive the transmission component 117 to rotate. It should be noted that the specific type of the drive module 119 is not limited, as long as it can drive the transmission mechanism to rotate.

[0089] In some embodiments, please continue reading Figure 2 The drive module 119 includes a coil 130 and a rotor 131. The rotor 131 is rotatably mounted within the coil and is connected to the transmission component 117. Specifically, one end of the limiting component 118 is fixedly connected to the rotor 131, and the other end is fixed to the transmission component 117. More specifically, when the coil 130 is energized, it generates a magnetic field, which affects the rotor 131, causing it to rotate. The transmission component 117 is connected to the rotor 131 and rotates with it. However, because the transmission component 117 is limited to the rotor 131 by the limiting component 118, it can only rotate and cannot move. This ensures that the transmission component 117 only rotates and does not move axially, thus preventing it from jamming.

[0090] In some embodiments, the drive component further includes a valve core 132, which is disposed between the transmission component 117 and the rotor 131, and is fixedly connected to the rotor 131. It should be noted that there is no connection between the valve core 132 and the transmission component 117; the valve core 132 only serves as a guide component to guide the transmission component 117.

[0091] It should be noted that the transmission component 117 is connected to the valve, and the driving force of the rotor 131 is transmitted through the valve. The transmission component 117 is prone to jamming with the valve core 132. To avoid the above situation, in this embodiment, please continue to refer to... Figure 2 The end of the rotor 131 away from the valve body 101 is folded inward to form a connecting wall, and the transmission component 117 is connected to the connecting wall. In this way, the valve core 132 will not be affected, and the rotor 131 and the transmission component 117 can be directly connected.

[0092] Furthermore, in some embodiments, since the transmission component 117 can be directly connected to the rotor 131, the valve core 132 can be omitted, reducing costs.

[0093] Alternatively, please continue reading Figure 2 and Figure 9 The drive module 119 also includes a valve core 132, which is located inside the rotor 131. A snap-fit ​​groove 133 is formed on the valve core 132, and a step 134 is also formed on the valve core 132. One end of the limiting component 118 extends into and snaps into the snap-fit ​​groove 133, and the other end of the limiting component 118 abuts against the step 134.

[0094] Optionally, the limiting component 118 includes a retaining ring 128, which has a mounting hole. The retaining ring 128 is engaged with the transmission member 117 through the mounting hole. The outer end of the retaining ring 128 extends into the engagement groove 133, thereby fixing the retaining ring 128 between the transmission member 117 and the valve core 132. Due to the limiting effect of the retaining ring 128, the transmission member 117 can only rotate with the rotor 131 and cannot move axially along the valve body 101.

[0095] Furthermore, to ensure the stability of the connection, the transmission component 117 is formed with external threads, and the other end of the snap ring 128 is engaged with the external threads.

[0096] Optionally, the limiting assembly 118 also includes a bearing 129, which is disposed on the retaining ring 128, and the end of the bearing 129 away from the retaining ring 128 abuts against the step 134. The bearing 129 can reduce the friction between the transmission component 117 and the valve core 132, thus preventing the transmission component 117 from jamming.

[0097] For example, the closing process of the control valve 100 provided in this application is as follows:

[0098] The rotor 131 drives the transmission component 117 to rotate counterclockwise. Due to the limiting effect of the limiting component 118, the transmission component 117 can only rotate and cannot move axially. The sealing component 105 is threadedly connected to the transmission component 117. The sealing component 105 is subjected to the force of the transmission component 117. The sealing component 105 moves axially along the valve body 101 and moves closer to the valve seat 104 until the sealing component 105 abuts against the sealing component 107, cutting off the first opening 102 and the second opening 103.

[0099] The opening process of the control valve 100 provided in this application is as follows:

[0100] The rotor 131 drives the transmission component 117 to rotate clockwise. Due to the limiting effect of the limiting component 118, the transmission component 117 can only rotate and cannot move axially. The sealing component 105 is threadedly connected to the transmission component 117. The sealing component 105 is subjected to the force of the transmission component 117. The sealing component 105 moves axially along the transmission component 117 and moves closer to the valve seat 104. The sealing component 107 separates from the sealing component 105, and the first opening 102 and the second opening 103 are connected.

[0101] According to a second aspect of this application, a heat pump system is provided, which includes the control valve 100 described above. This heat pump system possesses all the beneficial effects of the control valve 100 described above, which will not be elaborated further herein.

[0102] According to a third aspect of this application, a vehicle is provided that includes the aforementioned heat pump system, and the vehicle has all the beneficial effects of the aforementioned heat pump system, which will not be repeated here.

[0103] The vehicle may be a gasoline-powered vehicle, a plug-in hybrid electric vehicle, or a new energy vehicle, etc., and this application does not make any specific restrictions.

[0104] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0105] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0106] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0107] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A control valve, characterized in that, include: The valve body has a first opening and a second opening; A valve seat is disposed within the valve body; A sealing assembly, movably disposed within the valve body, is configured to be movable relative to the valve seat to move away from or abut against the valve seat to connect or disconnect the first opening and the second opening; Wherein, when the sealing assembly abuts against the valve seat, the valve seat is flexibly connected to the sealing assembly to disconnect the communication between the first opening and the second opening; The valve seat includes a body and a sealing element, the sealing element is disposed on the body, the body forms a first channel, and the first channel communicates with the second opening; The sealing assembly includes a first seal, the first seal having a second channel communicating with the first opening, and the first seal being configured to be movable relative to the plugging member; When the first seal abuts against the plugging member, the plugging member is flexibly connected to the first seal to block the second channel; The sealing element includes a valve needle and a first elastic element, the first elastic element abutting between the valve needle and the body, such that the first elastic element abuts against the valve needle in the direction toward the first sealing element.

2. The control valve according to claim 1, characterized in that, The Young's modulus of the first seal is different from that of the plug.

3. The control valve according to claim 1, characterized in that, One of the first sealing element and the plugging element is made of a metallic material, and the other is made of a non-metallic material.

4. The control valve according to claim 1, characterized in that, The end of the plugging member facing the first sealing member is tapered, and when the plugging member abuts against the first sealing member, at least a portion of the plugging member extends into the second channel.

5. The control valve according to claim 1, characterized in that, The valve needle has a baffle at one end facing the first seal, one end of the first elastic member abuts against the baffle on the side facing the body, and the other end of the first elastic member abuts against the body on the side facing the first seal.

6. The control valve according to claim 1, characterized in that, The valve needle is provided with a retaining ring at the end away from the first seal. When the sealing member abuts against the first seal, the retaining ring abuts against the side of the body away from the first seal.

7. The control valve according to claim 1, characterized in that, The second channel includes a first chamber disposed along the axial direction of the valve body, the first chamber penetrating one end of the first seal toward the plugging member, such that the first chamber communicates with the second opening, and at least one first through hole communicating with the first opening is provided through the side wall of the first chamber; When the first seal and the valve seat are far apart, the first chamber is connected to the first channel.

8. The control valve according to claim 7, characterized in that, The first seal is movably disposed within the valve body and has a first position and a second position relative to the valve body; When the first seal is in the first position, the sealing member abuts against the side wall of the first chamber to block the first chamber and the second opening; When the first seal is in the second position, the plugging member is away from the first seal, and the first chamber is in communication with the second opening.

9. The control valve according to claim 1, characterized in that, Also includes: A transmission component is disposed within the valve body and is threadedly engaged with the sealing assembly; A limiting component, disposed within the valve body, is used to limit the axial movement of the transmission member along the valve body; and, A drive module, connected to the transmission component, is used to drive the transmission component to rotate axially around the valve body, so as to drive the sealing assembly away from or against the valve seat.

10. The control valve according to claim 9, characterized in that, The sealing assembly includes a first seal and a second seal that are in active engagement. The first seal is at least partially located within the second seal. The first seal is threadedly connected to the transmission member. The second seal has a third channel communicating with the first opening. The second seal is configured to be movable relative to the valve seat. When the second seal abuts against the valve seat, the second seal is flexibly connected to the valve seat to cut off the third channel and the second opening.

11. The control valve according to claim 10, characterized in that, The Young's modulus of the second seal is different from that of the valve seat.

12. The control valve according to claim 10, characterized in that, The second seal and the valve seat are made of a metallic material and the other is made of a non-metallic material.

13. The control valve according to claim 10, characterized in that, The second seal is movably disposed within the valve body and has a third position and a fourth position relative to the valve body; When the second seal is in the third position, the second seal is moved away from the valve seat to form a fourth channel connecting the first opening and the second opening; When the second seal is in the fourth position, the second seal abuts against the valve seat to block the fourth channel.

14. The control valve according to claim 13, characterized in that, The first seal has a first abutting portion, and the second seal has a second abutting portion. The first abutting portion can abut against the second abutting portion, so that the first seal can drive the second seal to move toward the third position.

15. The control valve according to claim 13, characterized in that, It also includes a second elastic member, one end of which abuts against the second seal and presses against the second seal toward the fourth position.

16. The control valve according to claim 10, characterized in that, The third channel includes a second through hole arranged along the axial direction of the valve body, and at least one third through hole communicating with the first opening is passed through the hole wall of the second through hole; Wherein, at least a portion of the first seal is located within the second through hole, and when the first seal is far from the valve seat, the second through hole communicates with the second opening.

17. A heat pump system, characterized in that, Includes the control valve as described in any one of claims 1-16.

18. A vehicle, characterized in that, Including the heat pump system as described in claim 17.

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