Control valve, heat pump system and vehicle

Abstract

The invention relates to a control valve, a heat pump system and a vehicle. The control valve comprises a valve body, a valve seat and a sealing assembly. A first opening and a second opening are formed in the valve body; the valve seat is arranged in the valve body; the sealing assembly is movably arranged in the valve body, and the sealing assembly is configured to move relative to the valve seat so as to be far away from or abut against the valve seat to communicate or cut off 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, so that communication between the first opening and the second opening is cut off. The control valve aims at solving the technical problems that in the related technology, a control valve is poor in sealing performance and high in cost.

Description

Technical Field

[0001] The present application relates to the field of valve technology, and in particular to a control valve, a heat pump system and a vehicle. Background Art

[0002] The control valve includes various parts such as valve body, valve needle assembly, valve core, transmission rod, transmission nut, etc. There are many parts and many assemblers. The control valve in the related art uses a small-caliber valve needle assembly and valve seat seal. The seal between the valve needle assembly and the valve seat is a hard seal. In order to ensure the sealing performance, a high coaxiality needs to be ensured, resulting in high cost and poor sealing performance. Summary of the invention

[0003] The present application provides a control valve, a heat pump system and a vehicle, and the present application aims to solve the technical problems of poor sealing and high cost of the control valve in the related art.

[0004] In order to achieve the above object, according to a first aspect of the present application, a control valve is provided, comprising:

[0005] a valve body formed with a first opening and a second opening;

[0006] A valve seat, disposed in the valve body;

[0007] a sealing assembly, movably disposed in the valve body, the sealing assembly being configured to be movable relative to the valve seat to move away from or abut against the valve seat to connect or cut off the first opening and the second opening;

[0008] 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.

[0009] Optionally, the valve seat comprises a body and a blocking member, the blocking member is arranged on the body, the body is formed with a first channel, and the first channel is communicated with the second opening;

[0010] The sealing assembly comprises a first sealing member, the first sealing member is provided with a second passage communicating with the first opening, and the first sealing member is configured to be movable relative to the blocking member;

[0011] When the first sealing member abuts against the blocking member, the blocking member is flexibly connected to the first sealing member to block the second channel.

[0012] Optionally, the Young's modulus of the first sealing member is different from the Young's modulus of the blocking member.

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

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

[0015] Optionally, the blocking member includes a valve needle and a first elastic member, and the first elastic member abuts between the valve needle and the body, so that the first elastic member abuts against the valve needle in a direction toward the first sealing member.

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

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

[0018] Optionally, the second channel includes a first chamber arranged along the axial direction of the valve body, the first chamber passes through one end of the first sealing member facing the blocking member, so that the first chamber is connected with the second opening, and at least one first through hole connected with the first opening passes through the side wall of the first chamber;

[0019] Wherein, when the first sealing member and the valve seat are away from each other, the first chamber is connected to the first channel.

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

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

[0022] When the first sealing member is in the second position, the blocking member is away from the first sealing member, and the first chamber is communicated with the second opening.

[0023] Optionally, the control valve further includes:

[0024] A transmission member, disposed in the valve body and threadably matched with the sealing assembly;

[0025] a limit assembly, disposed in the valve body, for limiting the axial movement of the transmission member along the valve body; and

[0026] The driving module is connected to the transmission member and is used to drive the transmission member to rotate around the axial direction of the valve body to drive the sealing assembly to move away from or abut against the valve seat.

[0027] Optionally, the sealing assembly includes a first seal and a second seal that are movably matched, the first seal is at least partially located inside the second seal, the first seal is threadedly connected to the transmission member, the second seal is provided with a third channel connected to the first opening, the second seal is 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 the Young's modulus of the valve seat.

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

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

[0031] When the second sealing member is located at the third position, the second sealing member and the valve seat are separated from each other to form a fourth passage connecting the first opening and the second opening;

[0032] When the second sealing member is located at the fourth position, the second sealing member and the valve seat abut against each other to block the fourth channel.

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

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

[0035] Optionally, the third channel comprises 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 penetrates through the hole wall of the second through hole;

[0036] Wherein, at least a portion of the first sealing member is located in the second through hole, and when the first sealing member and the valve seat are away from each other, the second through hole is connected to the second opening.

[0037] According to a second aspect of the present application, a heat pump system is provided, comprising the above-mentioned control valve.

[0038] According to a third aspect of the present application, a vehicle is also provided, comprising the above-mentioned heat pump system.

[0039] Beneficial effects of this application:

[0040] In the technical scheme of the present application, 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 the sealing assembly is configured to be movable relative to the valve seat to move away from or abut the valve seat to connect or cut off the first opening and the second opening; when the sealing assembly abuts 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, since the sealing assembly and the valve seat are flexibly connected, when the sealing assembly abuts the valve seat, one of them will be flexibly deformed to achieve a soft seal, improve the sealing effect, and avoid leakage problems; at the same time, the sealing assembly and the valve seat are soft seals, and the coaxiality requirements for the sealing assembly and the valve seat are not high, which can reduce the processing cost of parts; thereby solving the technical problems of poor sealing and high cost of control valves in related technologies.

[0041] Other features and advantages of the present application will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0043] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0044] Figure 1 It is a structural schematic diagram of an embodiment of a control valve provided by the present application;

[0045] Figure 2 yes Figure 1 Full cross-sectional diagram of the middle control valve;

[0046] Figure 3 yes Figure 1 A schematic diagram of the cooperation between the middle transmission member and the first sealing member;

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

[0048] Figure 5 yes Figure 4 Cross-sectional view of the middle BB;

[0049] Figure 6 yes Figure 1 A schematic diagram of the cooperation between the first sealing member and the blocking member;

[0050] Figure 7 yes Figure 1 A schematic diagram of the structure of the second sealing member;

[0051] Figure 8 yes Figure 1 A schematic diagram of the cooperation between the first sealing member, the second sealing member and the valve seat;

[0052] Fig. 9 yes Figure 2 A magnified schematic diagram of center A.

[0053] Description of reference numerals:

[0054] 100, control valve; 101, valve body; 102, first opening; 103, second opening; 104, valve seat; 105, sealing assembly; 106, body; 107, blocking member; 108, first passage; 109, first sealing member; 110, second passage; 111, valve needle; 112, first elastic member; 113, baffle; 114, retaining ring; 115, first chamber; 116, first through hole; 117, transmission Moving part; 118, limiting assembly; 119, driving module; 120, second sealing part; 121, third channel; 122, fourth channel; 123, first abutting part; 124, second abutting part; 125, second elastic part; 126, second through hole; 127, third through hole; 128, retaining spring; 129, bearing; 130, coil; 131, rotor; 132, valve core; 133, snap-fit ​​groove; 134, step. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0056] The control valve includes various parts such as valve body, valve needle assembly, valve core, transmission rod, transmission nut, etc. There are many parts and many assemblers. The control valve in the related art uses a small-caliber valve needle assembly and valve seat seal. The valve needle assembly and valve seat are both made of metal materials. The seal between the valve needle assembly and the valve seat is a hard seal. In order to ensure the sealing performance, a high coaxiality needs to be ensured, resulting in high cost and poor sealing performance.

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

[0058] See also Figure 1 and Figure 2 The present 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 is formed with a first opening 102 and a second opening 103; the valve seat 104 is arranged in the valve body 101; the sealing assembly 105 is movably arranged in 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 to connect or cut off 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 scheme of the present application, the valve body 101 is formed with a first opening 102 and a second opening 103; the valve seat 104 is arranged in the valve body 101; the sealing component 105 is movably arranged in the valve body 101, and the sealing component 105 is configured to be movable relative to the valve seat 104 to move away from or abut the valve seat 104 to connect or cut off the first opening 102 and the second opening 103; when the sealing component 105 abuts against the valve seat 104, the valve seat 104 is flexibly connected to the sealing component 105 to disconnect the connection between the first opening 102 and the second opening 103. Specifically, due to the flexibly connected sealing component 105 and the valve seat 104, when the sealing component 105 abuts against the valve seat 104, one of them will undergo flexibly deformation to achieve soft sealing, improve the sealing effect, and avoid leakage problems; at the same time, the sealing component 105 and the valve seat 104 are soft seals, and the coaxiality requirements for the sealing component 105 and the valve seat 104 are not high, which can reduce the processing cost of parts; thereby solving the technical problems of poor sealing and high cost of the control valve 100 in the related art.

[0060] It should be noted that the first opening 102 can be a water inlet or a water outlet, and similarly, the second opening 103 can be a water inlet or a water outlet. For ease of description, the specific structure of the control valve 100 will be described below by taking the first opening 102 as a water inlet and the second opening 103 as a water outlet as an example.

[0061] In some embodiments, see Figure 4 and Figure 5The valve seat 104 includes a body 106 and a blocking member 107. The body 106 is formed with a first channel 108. The body 106 is disposed between the first opening 102 and the second opening 103. The first channel 108 communicates with the first opening 102 and the second opening 103. The blocking member 107 is disposed on the body 106. The blocking member 107 cooperates with the sealing assembly 105 to block or open the first channel 108, thereby communicating with or cutting off the first opening 102 and the second opening 103. Specifically, the sealing assembly 105 includes a first sealing member 109. The first sealing member 109 is disposed in the valve body 101. A second channel 110 is disposed in the first sealing member 109. The second channel 110 communicates with the first opening 102. More specifically, when the control valve 100 is in an open state, the fluid enters the valve body 101 from the first opening 102, the first opening 102 is connected to the second channel 110, the fluid enters the second channel 110 from the first opening 102, the blocking member 107 is separated from the first sealing member 109, the fluid enters the first channel 108 from the second channel 110, and then flows out from the second opening 103. When the valve body 101 is in a closed state, the blocking member 107 abuts against the first sealing member 109, and the blocking member 107 flexibly abuts against the second channel 110, so that the second channel 110 is disconnected from the second opening 103. When the fluid enters the second channel 110, due to the blocking effect of the blocking member 107, the fluid cannot flow out of the second channel 110, thereby achieving a cutoff function.

[0062] It should be noted that the Young's modulus of the first seal 109 is different from that of the plugging member 107. Young's modulus is a physical quantity that describes the ability of a solid material to resist deformation. The Young's modulus of the first seal 109 is different from that of the plugging member 107, which means that the first seal 109 and the plugging member 107 have different degrees of difficulty in producing elastic deformation when subjected to the same external force. In this embodiment, the plugging member 107 and the first seal 109 are flexibly connected. When the two are in contact, due to the different Young's modulus, one of them undergoes elastic deformation, or both undergo elastic deformation, and the deformed part can fill the gap between the two, thereby ensuring the sealing effect between the plugging member 107 and the first seal 109.

[0063] Furthermore, since the first seal 109 and the plugging member 107 are flexibly connected, the coaxiality requirement between the first seal 109 and the plugging member 107 can be reduced. Even if the coaxiality between the first seal 109 and the plugging member 107 is low, there will be a gap when the first seal 109 and the plugging member 107 abut against each other. At this time, 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 between the first seal 109 and the plugging member 107. In this way, the coaxiality requirement between the first seal 109 and the plugging member 107 can be reduced, thereby reducing the processing time and processing cost of the first seal 109 and the plugging member 107, thereby reducing the cost of the control valve 100, and will not affect the sealing.

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

[0065] Optionally, a first mounting hole is further provided on the main body 106, and the blocking piece 107 is installed in the first mounting hole. The end of the blocking piece 107 facing the first sealing piece 109 is tapered, and the taper can adjust the flow rate of the fluid. When the tapered end of the blocking piece 107 is fully extended into the second channel 110, the blocking piece 107 abuts against the first sealing piece 109, thereby achieving a sealing effect. When the blocking piece 107 moves away from the first sealing piece 109, as the blocking piece 107 moves, the opening between the blocking piece 107 and the second channel 110 becomes larger and larger, thereby achieving the adjustment of the flow rate of the fluid.

[0066] In some embodiments, the blocking member 107 includes a valve needle 111 and a first elastic member 112 , and the valve needle 111 abuts against the sealing portion 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 actual conditions.

[0067] In some embodiments, one end of the first elastic member 112 abuts against the side of the valve seat 104 facing the first sealing member 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. The elastic restoring force of the first elastic member 112 makes the valve needle 111 abut against the first sealing member 109.

[0068] In some other embodiments, see Figure 4and Figure 5 A baffle 113 is provided at one end of the valve needle 111 facing the first sealing member 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 sealing member 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 member 112 includes a spring, and the spring 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 arranged in the first mounting hole. One end of the valve needle 111 toward the first sealing member 109 extends out of the first mounting hole so that the valve needle 111 can abut against the first sealing member 109. The first elastic member 112 is sleeved on the valve needle 111, and one end of the first elastic member 112 abuts against the side of the baffle 113 toward the valve seat 104, and the other end of the first elastic member 112 abuts against the side of the valve seat 104 toward the first sealing member 109. The function of the first elastic member 112 is to elastically connect the valve needle 111 with the first sealing member 109. When the valve needle 111 abuts against the first sealing member 109, a certain amount of buffering is provided to avoid damage caused by hard contact. At the same time, when the valve needle 111 abuts against the first sealing member 109, the first elastic member 112 also applies a rebound force, so that the valve needle 111 abuts against the first sealing member 109 tightly, thereby improving the sealing performance. At the same time, the elastic effect of the first elastic member 112 can also be beneficial to the control of flow rate.

[0071] In some embodiments, see Figure 5 , a retaining ring 114 is provided at the end of the valve needle 111 away from the first sealing member 109; the valve needle 111 is connected to the valve seat 104 through the retaining ring 114 and the first elastic member 112. Specifically, a retaining ring 114 is provided at the end of the valve needle 111 close to the first sealing member 109, one end of the first elastic member 112 abuts against the end of the valve needle 111 facing the first sealing member 109, and the other end of the first elastic member 112 abuts against the side of the valve seat 104 facing the first sealing member 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 set on the valve seat 104, the first elastic member 112 will rebound, driving the valve needle 111 to move in the direction close to the first sealing member 109. At this time, the retaining ring 114 abuts against the end of the valve seat 104 away from the first sealing member 109, thereby making the valve needle 111 relatively fixed to the valve seat 104.

[0072] In some embodiments, the first sealing member 109 is movably disposed in the valve seat 104 and has a first position and a second position relative to the valve seat 104; when the first sealing member 109 is in the first position, the blocking member 107 abuts against the side wall of the second channel 110, thereby achieving the abutment between the first sealing member 109 and the blocking member 107 to cut off the communication between the second channel 110 and the first channel 108. When the first sealing member 109 is in the second position, the first sealing member 109 is away from the blocking member 107, so that the second channel 110 is connected with the first channel 108, so that the fluid can flow from the second channel 110 to the first channel 108, and then flow from the first channel 108 to the second opening 103, and flow out from the second opening 103.

[0073] In some embodiments, please refer to Figure 2 and Figure 3 The second channel 110 includes a first chamber 115 and a first through hole 116, wherein the first chamber 115 is arranged along the axial direction of the valve seat 104, and the first chamber 115 passes through one end of the first sealing member 109 facing the blocking member 107. When the first sealing member 109 is in the first position, the blocking member 107 abuts against the side wall of the first chamber 115, thereby cutting off the connection between the first chamber 115 and the first channel 108. Furthermore, at least one first through hole 116 passes through the side wall of the first chamber 115, and the at least one first through hole 116 connects the first chamber 115 and the first opening 102. Please refer to Figure 6 When the first sealing member 109 is in the first position, the blocking member 107 abuts against the side wall of the first chamber 115, cutting off the first chamber 115 and the first channel 108. When the fluid enters from the first opening 102 and flows into the first chamber 115 through the first via hole 116, the blocking member 107 abuts against the side wall of the first chamber 115, so that the fluid cannot flow out of the first chamber 115, thereby achieving cutting off. When the first sealing member 109 is in the second position, the blocking member 107 is separated from the first chamber 115, and the first chamber 115 is connected to the first channel 108. The fluid enters from the first opening 102, flows into the first chamber 115 through the first via hole 116, and then enters the first channel 108 from the first chamber 115, and then flows out from the second opening 103.

[0074] See also Figure 2 and Fig. 9The control valve 100 also includes a transmission member 117, a limit assembly 118 and a drive module 119; the transmission member 117 is arranged in the valve body 101 and is threadedly matched with the sealing assembly 105; the limit assembly 118 is arranged in the valve body 101, and is used to limit the axial movement of the transmission member 117 along the valve body 101; the drive module 119 is connected to the transmission member 117, and 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 away from or abut against the valve seat 104. In this embodiment, the valve body 101 is formed with a first opening 102 and a second opening 103; the sealing assembly 105 is movably arranged in the valve body 101 and is restricted in rotation by the limiting assembly 118; the transmission member 117 is arranged in the valve body 101 and is threadedly engaged with the sealing assembly 105; the limiting assembly 118 is used to limit the axial movement of the transmission member 117 along the valve body 101; the driving 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 member 117 is driven by the driving module 119, the limiting assembly 118 can limit the transmission member 117, and the transmission member 117 can only rotate along the axial direction of the valve body 101, but cannot move along the axial direction of the valve body 101. The sealing assembly 105 is threadedly matched with the transmission member 117, and the sealing assembly 105 is driven by the transmission member 117 to move along the axis of the valve body 101, so that the sealing assembly 105 can conduct or cut off the first opening 102 and the second opening 103. During the rotation of the transmission member 117, the transmission member 117 is driven to rotate by the driving module 119. Due to the limiting effect of the limiting assembly 118, the transmission member 117 can only rotate, but cannot move up and down along the axial direction of the valve body 101. The sealing assembly 105 is threadedly connected with the limiting member, and can only move up and down along the axial direction of the valve body 101, but cannot rotate, thereby preventing the control valve 100 from getting stuck.

[0075] In some embodiments, see Figure 2 and Figure 7The sealing assembly 105 includes a first sealing member 109 and a second sealing member 120 that are movably matched. The first sealing member 109 is at least partially located in the second sealing member 120. The first sealing member 109 is threadedly matched with the transmission member 117. The second sealing member 120 is provided with a third channel 121 that is connected to the first opening 102. Specifically, the fluid enters from the first opening 102, and the third channel 121 is connected to the first opening 102. The fluid enters the third channel 121. The first sealing member 109 is arranged in the second sealing member 120. The first chamber 115 is provided in the first sealing member 109. The side wall of the first chamber 115 is penetrated by a first through hole 116. The fluid in the third channel 121 enters the first chamber 115 from the first through hole 116. More specifically, the first sealing member 109 moves between the first position and the second position relative to the second sealing member 120; when the first sealing member 109 is in the first position, the first sealing member 109 abuts against the blocking member 107, and the fluid enters the third channel 121 from the first opening 102, and the third channel 121 is connected to the first chamber 115 through the first through hole 116, and the fluid then enters the first chamber 115. Since the blocking member 107 abuts against the first sealing member 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 sealing member 109 is in the second position, the blocking member 107 is separated from the first sealing member 109, and the fluid enters the third channel 121 from the first opening 102, and the third channel 121 is connected with the first channel 108 through the first via 116, and the fluid then enters the first channel 108, and 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 sealing member 120 is different from that of the valve seat 104. Young's modulus is a physical quantity that describes the ability of a solid material to resist deformation. The Young's modulus of the second sealing member 120 is different from that of the valve seat 104, which means that the second sealing member 120 and the valve seat 104 have different degrees of difficulty in producing elastic deformation when subjected to the same external force. In this embodiment, the valve seat 104 and the second sealing member 120 are flexibly connected. When the two are in contact, due to the different Young's modulus, one of them undergoes elastic deformation, or both undergo elastic deformation, and the deformed part can fill the gap between the two, thereby ensuring the sealing effect between the valve seat 104 and the second sealing member 120.

[0077] Furthermore, since the second sealing member 120 and the valve seat 104 are flexibly connected, the coaxiality requirement between the second sealing member 120 and the valve seat 104 can be reduced. Even if the coaxiality between the second sealing member 120 and the valve seat 104 is low, there will be a gap when the second sealing member 120 abuts against the valve seat 104. At this time, one of the second sealing member 120 and the valve seat 104 undergoes elastic deformation, and the deformed part can fill the gap, thereby ensuring the sealing between the second sealing member 120 and the valve seat 104. In this way, the coaxiality requirement between the second sealing member 120 and the valve seat 104 can be reduced, thereby reducing the processing time and processing cost of the second sealing member 120 and the valve seat 104, thereby reducing the cost of the control valve 100, and will not affect the sealing.

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

[0079] Please continue reading Figure 7 and Figure 8 In this embodiment, the second sealing member 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 sealing member 120 is disposed between the first opening 102 and the second opening 103, the valve seat 104 is disposed at the second opening 103, the second sealing member 120 is disposed at the first opening 102, and the second sealing member 120 abuts against the valve seat 104, so that the first channel 108 on the valve seat 104 is disconnected from the first opening 102.

[0080] Further, the second sealing member 120 is movably disposed in the valve body 101 and has a third position and a fourth position relative to the valve seat 104; when the second sealing member 120 is in the third position, the second sealing member 120 is separated from the valve seat 104, and a fourth channel 122 is formed between the second sealing member 120 and the valve seat 104, and the fourth channel 122 communicates with the first opening 102 and the second opening 103; the fluid enters from the first opening 102 and directly flows into the fourth channel 122, and the fourth channel 122 communicates with the first channel 108, and the fluid enters the second opening 103 through the first channel 108. When the second sealing member 120 is in the fourth position, the second sealing member 120 abuts against the valve seat 104, and the second sealing member 120 closes the fourth channel 122.

[0081] The activity form of the second seal 120 is not limited and can be selected according to actual conditions. 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 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 arranged on the inner side wall 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 sealing member 109 continues to move until the first sealing member 109 is located at the second position, the second sealing member 120 is located at the third position, the second sealing member 120 is separated from the valve seat 104, and a fourth channel 122 is formed between the second sealing member 120 and the valve seat 104, and the fourth channel 122 connects the first opening 102 and the second opening 103; the fluid enters from the first opening 102 and directly flows into the fourth channel 122, the fourth channel 122 is connected with the first channel 108, and the fluid enters the second opening 103 through the first channel 108.

[0082] Further, the control valve 100 includes a second elastic member 125, one end of the second elastic member 125 abuts against the second sealing member 120, and the second elastic member 125 presses the second sealing member 120 toward the fourth position. When the control valve 100 needs to be closed, the first sealing member 109 moves to the first position, at which time the first abutting portion 123 and the second abutting portion 124 are separated, and the second sealing member 120 moves toward the valve seat 104 under the elastic restoring force of the second elastic member 125 until the second sealing member 120 abuts against the valve seat 104, and the second sealing member 120 closes the fourth channel 122.

[0083] Furthermore, in this embodiment, the second sealing member 120 only moves along the axial direction of the valve body 101 and does not rotate relative to the valve body 101 , so that opening and closing are achieved through a single movement, thereby avoiding the occurrence of jamming and the like.

[0084] In some embodiments, please refer to Figure 7The third channel 121 includes a second through hole 126 and a third through hole 127. The second through hole 126 extends along the axial direction of the valve body 101. The first sealing member 109 is movably disposed in the second through hole 126. The side of the second through hole 126 away from the first sealing member 109 is communicated with the second opening 103. The third through hole 127 penetrates the side wall of the second through hole 126, and the third through hole 127 is communicated with the first opening 102. Specifically, when the first sealing member 109 is located at the first position, the blocking portion of the first sealing member 109 abuts. At this time, the first sealing member 109 fills the second through hole 126, disconnecting the second through hole 126 from the first channel 108, so that the fluid in the third through hole 127 cannot enter the first channel 108, thereby achieving the blocking of the first opening 102 and the second opening 103. When the first sealing member 109 is in the second position, the fluid enters from the first opening 102, enters the second via hole 126 through the third via hole 127, the second via hole 126 is connected to the first chamber 115 through the first via hole 116, the fluid enters the first chamber 115, the first sealing member 109 is separated from the blocking portion, the open end of the first chamber 115 is opened, the fluid enters the first channel 108 from the first chamber 115, and flows to the second opening 103 through the first channel 108, thereby realizing conduction between the first opening and the second opening.

[0085] It should be noted that the sealing component 105 and the transmission member 117 are threadedly connected, and the threaded connection method of the sealing component 105 and the transmission member 117 is not limited and can be selected according to actual conditions.

[0086] In some embodiments, see Figure 2 and Figure 3 A first external thread is formed on the outer wall of the transmission member 117 at one end close to the sealing component 105, and a first accommodating groove is formed at one end of the sealing component 105 close to the transmission member 117. A first internal thread is formed on the inner wall of the first accommodating groove. The first external thread cooperates with the first internal thread so that the transmission member 117 is threadedly connected to the sealing component 105.

[0087] In another embodiment, a second accommodating groove is formed at one end of the transmission member 117 near the sealing assembly 105, a second internal thread is formed on the inner wall of the second accommodating groove, and a second external thread is formed on the outer wall of the sealing assembly 105 near one end of the transmission member 117, and the second external thread cooperates with the second internal thread to enable the transmission member 117 to be threadedly connected to the sealing assembly 105.

[0088] See also Figure 2 In some embodiments, the driving module 119 is disposed on the valve body 101, and the driving module 119 is connected to the transmission member 117 to drive the transmission member 117 to rotate. It should be noted that the specific type of the driving module 119 is not limited, as long as it can drive the transmission machine to rotate.

[0089] In some embodiments, please refer to Figure 2 The driving module 119 includes a coil 130 and a rotor 131. The rotor 131 is rotatably installed in the wire, and the rotor 131 is connected to the transmission member 117. Specifically, one end of the limit assembly 118 is fixedly connected to the rotor 131, and the other end is fixed to the transmission member 117. More specifically, when the coil 130 is energized, the coil 130 will generate a magnetic field, and the magnetic field will affect the rotor 131, so that the rotor 131 rotates, and the transmission member 117 is connected to the rotor 131. The transmission member 117 rotates with the rotor 131. Since the transmission member 117 is limited on the rotor 131 by the limit assembly 118, the transmission member 117 can only rotate but cannot move, so that the transmission member 117 can only rotate but not move along the axial direction, thereby preventing the transmission member 117 from getting stuck.

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

[0091] It should be noted that the transmission member 117 is connected to the valve and transmits the driving force of the rotor 131 through the valve. The transmission member 117 is easily stuck with the valve core 132. In order to avoid the above situation, in this embodiment, please continue to refer to Figure 2 One end of the rotor 131 away from the valve body 101 is folded inward to form a connecting wall, and the transmission member 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 member 117 can be directly connected.

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

[0093] Optionally, see Figure 2 and Fig. 9 The driving module 119 also includes a valve core 132, which is arranged in the rotor 131. A clamping 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 is clamped in the clamping groove 133, and the other end of the limiting component 118 abuts against the step 134.

[0094] Optionally, the limit assembly 118 includes a retaining spring 128, which has an installation hole formed therein. The retaining spring 128 is clamped on the transmission member 117 through the installation hole, and the outer end of the retaining spring 128 extends into the clamping groove 133, thereby fixing the retaining spring 128 between the transmission member 117 and the valve core 132. Due to the limiting effect of the retaining spring 128, the transmission member 117 can only rotate with the rotor 131, and cannot move along the axial direction of the valve body 101.

[0095] Furthermore, in order to ensure the stability of the connection, the transmission member 117 is formed with an external thread, and the other end of the retaining spring 128 is clamped to the external thread.

[0096] Optionally, the limit assembly 118 further includes a bearing 129, which is disposed on the retaining spring 128, and one end of the bearing 129 away from the retaining spring 128 abuts against the step 134. The bearing 129 can reduce the friction between the transmission member 117 and the valve core 132, thereby preventing the transmission member 117 from getting stuck.

[0097] Exemplarily, the closing process of the control valve 100 provided in the present application is as follows:

[0098] The rotor 131 drives the transmission member 117 to rotate counterclockwise. Due to the limiting effect of the limiting assembly 118, the transmission member 117 can only rotate but cannot move axially. The sealing assembly 105 is threadedly connected to the transmission member 117. The sealing assembly 105 is acted upon by the transmission member 117. The sealing assembly 105 moves axially along the valve body 101, approaching the valve seat 104, until the sealing assembly 105 abuts against the blocking member 107, thereby cutting off the first opening 102 and the second opening 103.

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

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

[0101] According to a second aspect of the present application, a heat pump system is provided, the heat pump system comprising the above-mentioned control valve 100. The heat pump system has all the beneficial effects of the above-mentioned control valve 100, which will not be described in detail in the present application.

[0102] According to a third aspect of the present application, a vehicle is provided, which includes the above-mentioned heat pump system. The vehicle has all the beneficial effects of the above-mentioned heat pump system, which will not be described in detail in the present application.

[0103] The vehicle may be a fuel vehicle, a plug-in hybrid vehicle or a new energy vehicle, etc., and this application does not make any specific limitation on this.

[0104] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0105] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0106] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other without conflict.

[0107] The above are only preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A control valve, characterized in that: include: a valve body formed with a first opening and a second opening; A valve seat, disposed in the valve body; a sealing assembly, movably disposed in the valve body, the sealing assembly being configured to be movable relative to the valve seat to move away from or abut against the valve seat to connect 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 disconnect the communication between the first opening and the second opening.

2. The control valve according to claim 1, characterized in that: The valve seat comprises a body and a blocking member, wherein the blocking member is arranged on the body, and a first channel is formed on the body, wherein the first channel is communicated with the second opening; The sealing assembly comprises a first sealing member, the first sealing member is provided with a second passage communicating with the first opening, and the first sealing member is configured to be movable relative to the blocking member; When the first sealing member abuts against the blocking member, the blocking member is flexibly connected to the first sealing member to block the second channel.

3. The control valve according to claim 2, characterized in that: The Young's modulus of the first sealing member is different from the Young's modulus of the blocking member.

4. The control valve according to claim 2, characterized in that: One of the first sealing member and the blocking member is made of a metal material, and the other one is made of a non-metallic material.

5. The control valve according to claim 2, characterized in that: The end of the blocking member facing the first sealing member is tapered, and when the blocking member abuts against the first sealing member, at least a portion of the blocking member extends into the second channel.

6. The control valve according to claim 2, characterized in that: The blocking member includes a valve needle and a first elastic member, wherein the first elastic member abuts between the valve needle and the body, so that the first elastic member abuts against the valve needle in a direction toward the first sealing member.

7. The control valve according to claim 6, characterized in that: A baffle is provided at one end of the valve needle facing the first sealing member, one end of the first elastic member abuts against a side of the baffle facing the body, and the other end of the first elastic member abuts against a side of the body facing the first sealing member.

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

9. The control valve according to claim 2, characterized in that: The second passage comprises a first chamber arranged along the axial direction of the valve body, the first chamber passes through one end of the first sealing member facing the blocking member so that the first chamber is connected with the second opening, and at least one first through hole connected with the first opening passes through the side wall of the first chamber; Wherein, when the first sealing member and the valve seat are away from each other, the first chamber is connected to the first channel.

10. The control valve according to claim 9, characterized in that The first sealing member is movably disposed in the valve body and has a first position and a second position relative to the valve body; When the first sealing member is in the first position, the blocking member abuts against the side wall of the first chamber to block the first chamber and the second opening; When the first sealing member is in the second position, the blocking member is away from the first sealing member, and the first chamber is communicated with the second opening.

11. The control valve according to claim 1, characterized in that Also includes: A transmission member, disposed in the valve body and threadably matched with the sealing assembly; a limit assembly, disposed in the valve body, for limiting the axial movement of the transmission member along the valve body; and The driving module is connected to the transmission member and is used to drive the transmission member to rotate around the axial direction of the valve body to drive the sealing assembly to move away from or abut against the valve seat.

12. The control valve according to claim 11, characterized in that The sealing assembly includes a first sealing member and a second sealing member that are movably matched, the first sealing member is at least partially located inside the second sealing member, the first sealing member is threadedly connected to the transmission member, the second sealing member is provided with a third channel connected to the first opening, the second sealing member is configured to be movable relative to the valve seat, and when the second sealing member abuts against the valve seat, the second sealing member is flexibly connected to the valve seat to cut off the third channel and the second opening.

13. The control valve according to claim 12, characterized in that The second seal has a Young's modulus that is different from a Young's modulus of the valve seat.

14. The control valve according to claim 12, characterized in that One of the second sealing member and the valve seat is made of a metal material, and the other is made of a non-metal material.

15. The control valve according to claim 12, characterized in that The second sealing member is movably disposed in the valve body and has a third position and a fourth position relative to the valve body; When the second sealing member is located at the third position, the second sealing member and the valve seat are separated from each other to form a fourth passage connecting the first opening and the second opening; When the second sealing member is located at the fourth position, the second sealing member and the valve seat abut against each other to block the fourth channel.

16. The control valve according to claim 15, characterized in that The first sealing member has a first abutting portion, and the second sealing member has a second abutting portion. The first abutting portion can abut against the second abutting portion, so that the first sealing member can drive the second sealing member to move toward the third position.

17. The control valve according to claim 15, characterized in that The device further comprises a second elastic member, one end of which abuts against the second sealing member and presses the second sealing member toward the fourth position.

18. The control valve according to claim 12, characterized in that The third passage comprises a second through hole arranged along the axial direction of the valve body, and at least one third through hole connected to the first opening penetrates through the hole wall of the second through hole; Wherein, at least a portion of the first sealing member is located in the second through hole, and when the first sealing member and the valve seat are away from each other, the second through hole is connected to the second opening.

19. A heat pump system, characterized in that: Comprising a control valve as described in any one of claims 1-18.

20. A vehicle, characterized in that: Comprising the heat pump system as claimed in claim 19.

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