Valve element assembly, valve, temperature adjusting system and vehicle

Abstract

The utility model discloses a valve element assembly, a valve, a temperature adjusting system and a vehicle, relates to the technical field of vehicles, and aims to solve the problem that a spring is prone to shaking. The valve element assembly comprises a valve element, a screw rod, a bearing, a first elastic piece and a supporting piece. The screw rotates to drive the valve element to move in the axial direction of the screw. The bearing comprises a bearing inner ring and a bearing outer ring, one of the bearing inner ring and the bearing outer ring is matched with the valve element so that the valve element can limit the bearing, and the bearing outer ring can rotate in the circumferential direction relative to the bearing inner ring. The first elastic piece is arranged between the screw rod and the bearing. The supporting piece is arranged between the first elastic piece and the bearing so as to support the first elastic piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to vehicle technical field especially valve core subassembly, valve, temperature regulation system and vehicle. BACKGROUND

[0002] The electromagnetic valve usually sets up the bearing, the inner ring of bearing is fixed with the valve core, and the spring is abutted between the outer ring of bearing and screw rod, so that when the screw rod rotates, the outer ring of bearing rotates with the screw rod, and the wear of the valve core rotation is avoided. However, the spring is easy to shake, thereby affecting the normal use of the electromagnetic valve. UTILITY MODEL CONTENTS

[0003] The utility model discloses valve core subassembly, valve, temperature regulation system and vehicle aim at solving the problem that the spring is easy to shake.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] The utility model discloses a valve core subassembly, including valve core, screw rod, bearing, first elastic part and support piece. Screw rod rotates to drive valve core and moves along the axial direction of screw rod. Bearing includes bearing inner ring and bearing outer ring, one of bearing inner ring and bearing outer ring is matched with valve core to make valve core limit bearing, and bearing outer ring can rotate relative to bearing inner ring. First elastic piece is arranged between screw rod and bearing. Support piece is arranged between first elastic piece and bearing to support first elastic piece.

[0006] Through the above-mentioned setting, in the process of screw rod rotation, because support piece is arranged between first elastic piece and bearing, therefore first elastic piece can exert elastic force on the other one of bearing outer ring or bearing inner ring through support piece, thereby making the other one of bearing outer ring or bearing inner ring rotate synchronously with screw rod, and one of bearing outer ring or bearing inner ring does not rotate.

[0007] In this way, compared with the contact between first elastic piece and the other one of bearing outer ring or bearing inner ring, through the setting of support piece, the stability of valve core subassembly as a whole can be improved to ensure the normal use of valve core subassembly.

[0008] In some embodiments, the support piece includes a fixed part and an abutting part. The fixed part is fixed with the first elastic piece. The fixed part is connected to one side of the abutting part facing the screw rod, and the abutting part is arranged on the surface of the one side of the bearing outer ring facing the screw rod.

[0009] In some embodiments, the first elastic piece is provided with a limiting channel, and the limiting channel extends along the axial direction of the screw rod. The fixed part is arranged in the limiting channel.

[0010] In some embodiments, the fixed part is in interference fit with the inner wall surface of the limiting channel.

[0011] In some embodiments, the height of the first elastic member is greater than the height of the fixed portion along the axial direction of the screw.

[0012] In some embodiments, the fixed portion comprises a fixed tube.

[0013] In some embodiments, the abutting portion is arranged between the first elastic member and the outer ring of the bearing. The outer diameter of the first elastic member is smaller than the outer diameter of the abutting portion.

[0014] In some embodiments, the abutting portion is provided with a relief hole, which is recessed from the side surface of the abutting portion facing away from the fixed portion.

[0015] In some embodiments, the fixed portion and the abutting portion are integrally formed.

[0016] In some embodiments, the first elastic member comprises a first spring.

[0017] In some embodiments, the valve core assembly further comprises a mounting sleeve and a limiting portion. One end of the mounting sleeve is connected to the screw. The first elastic member, the support member and the bearing are arranged in the mounting sleeve. The limiting portion is connected to the mounting sleeve, and the limiting portion is arranged on the side of the outer ring of the bearing facing away from the screw.

[0018] In some embodiments, the limiting portion comprises a first limiting ring, and the axial direction of the first limiting ring is consistent with the axial direction of the screw.

[0019] In some embodiments, the mounting sleeve comprises a first tube segment and a second tube segment. The first tube segment is connected to the screw, and the second tube segment is connected to the limiting portion. The first tube segment is connected to the second tube segment.

[0020] In some embodiments, the first tube segment is integrally formed with the screw. The second tube segment is integrally formed with the limiting portion.

[0021] In some embodiments, the support member comprises a connecting portion, an abutting portion and a fixed portion. The connecting portion is fixed to the screw. The abutting portion is connected to the side of the connecting portion facing away from the screw, and the abutting portion is arranged on the side surface of the inner ring of the bearing facing away from the screw. The fixed portion is supported between the inner ring of the bearing and the first elastic member.

[0022] In some embodiments, the connecting portion comprises a connecting rod, and the connecting rod is arranged through the inner ring of the bearing.

[0023] In some embodiments, the first elastic member is provided with a limiting channel extending along the axial direction of the screw, and the connecting portion is arranged in the limiting channel.

[0024] In some embodiments, the fixed portion comprises a support ring, and the support ring is sleeved on the connecting rod.

[0025] The utility model discloses a second aspect, provide a kind of valve comprising the valve core subassembly of above-mentioned, drive assembly and valve body. Drive assembly is used to drive screw rotation. Valve body is equipped with cavity and with the fluid inlet and outlet pipeline of cavity communication. Valve core subassembly is located in cavity, and can be moved between first position and second position. When valve core is in first position, fluid inlet and outlet pipeline are communicated. When valve core is in second position, valve core seals fluid inlet.

[0026] In some embodiments, the valve further includes a guide pipe connected to the valve body, and an inner space of the guide pipe is communicated with the cavity. The guide pipe is provided with a thread. The screw rod extends into the guide pipe and is screwed with the thread.

[0027] In some embodiments, the drive assembly includes a mover and a stator. The mover is connected to the screw rod. The stator is arranged to drive the mover to rotate around the axial direction of the screw rod, so as to drive the valve core to move axially between the first position and the second position.

[0028] In some embodiments, the valve further includes a second elastic member elastically supported between the valve core and the guide pipe.

[0029] In some embodiments, the second elastic member includes a second spring, and the second spring is sleeved on the valve core subassembly.

[0030] In some embodiments, the valve core includes a piston, the piston is movable along the inner wall surface of the cavity, and the piston is sealingly arranged with the inner wall surface of the cavity.

[0031] In some embodiments, the piston is cylindrical, and the outer diameter of the piston is a. The cavity is also cylindrical, and the inner diameter of the cavity is b, 0.1mm > b-a > 0.04mm.

[0032] In some embodiments, the valve further includes a first sealing member arranged between the piston and the inner wall surface of the cavity, and in contact with both the piston and the inner wall surface of the cavity, for sealing the gap between the piston and the inner wall surface of the cavity.

[0033] In some embodiments, the first sealing member is located on the side of the fluid inlet close to the screw rod. The piston is provided with a through hole, and the through hole penetrates the piston along the axial direction of the screw rod.

[0034] In some embodiments, the valve further includes a second sealing member arranged in the cavity and in contact with the inner wall surface of the cavity, and the second sealing member is located on the side of the fluid inlet close to the outlet pipeline. When the valve core is in the second position, the second sealing member is in contact with the valve core, and seals the gap between the cavity and the valve core.

[0035] In some embodiments, in the direction close to the valve core along the screw rod, the radial dimension of at least part of the inner circumferential surface of the sealing ring gradually decreases.

[0036] In some embodiments, the inner wall of the cavity is provided with a groove, the sealing ring is disposed within the groove, and the end surface of the sealing ring facing away from the screw contacts the end surface of the outlet pipe facing the screw. The valve further includes a stopper plate disposed within the groove and connected to the inner wall of the groove. The end surface of the stopper plate facing away from the screw contacts the end surface of the second sealing member facing the screw.

[0037] In some embodiments, the valve further comprises a mounting member, which is arranged around the valve body and connected to the valve body. An outer peripheral wall of the mounting member is provided with a mounting portion, which is used to connect with the component to be mounted.

[0038] In some embodiments, the mounting portion includes threads.

[0039] A third aspect of the present invention provides a temperature control system comprising an evaporator, a compressor, a condenser, a refrigerant circuit, and the aforementioned valve. The evaporator, compressor, and condenser are connected in series to the refrigerant circuit so that refrigerant in the refrigerant circuit can circulate through the evaporator, compressor, and condenser. The valve is connected to the refrigerant circuit to control the on / off state of the refrigerant circuit.

[0040] A fourth aspect of the present invention provides a vehicle, comprising a vehicle body and the above-mentioned temperature regulation system, wherein the temperature regulation system is connected to the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of 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. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0042] Figure 1 A schematic diagram of the external structure of a vehicle provided in an embodiment of the present application;

[0043] Figure 2 for Figure 1 Schematic diagram of the structure of the temperature regulation system;

[0044] Figure 3 for Figure 2 A cross-sectional schematic diagram of the valve;

[0045] Figure 4 for Figure 3 A cross-sectional schematic diagram of the valve core assembly;

[0046] Figure 5 for Figure 4 A partial enlarged schematic diagram of point A in the middle;

[0047] Figure 6 for Figure 2Another cross-sectional schematic view of the valve;

[0048] Figure 7 For Figure 3 Another cross-sectional schematic view of the valve core assembly;

[0049] Figure 8 For Figure 3 Cross-sectional schematic view of the valve core assembly and the second elastic member;

[0050] Figure 9 For Figure 3 Cross-sectional schematic view of the valve core;

[0051] Figure 10 For Figure 3 Cross-sectional schematic view of the second sub-portion and the second sealing member;

[0052] Figure 11 For Figure 3 Cross-sectional schematic view of the mounting member.

[0053] Fig. 1 is a schematic view of a vehicle temperature regulation system according to an embodiment of the present application; Fig. 2 is a schematic view of a valve according to an embodiment of the present application; Fig. 3 is a schematic view of a valve core assembly according to an embodiment of the present application; Fig. 4 is a schematic view of a first elastic member according to an embodiment of the present application; Fig. 5 is a schematic view of a support member according to an embodiment of the present application; Fig. 6 is a schematic view of a mounting sleeve according to an embodiment of the present application; Fig. 7 is a schematic view of a second elastic member according to an embodiment of the present application; Fig. 8 is a schematic view of a first sealing member according to an embodiment of the present application; Fig. 9 is a schematic view of a second sealing member according to an embodiment of the present application; Fig. 10 is a schematic view of a third sealing member according to an embodiment of the present application; Fig. 11 is a schematic view of a mounting member according to an embodiment of the present application; Fig. 12 is a schematic view of a protection shell according to an embodiment of the present application; Fig. 13 is a schematic view of a stop assembly according to an embodiment of the present application; Fig. 14 is a schematic view of a compressor according to an embodiment of the present application; Fig. 15 is a schematic view of an evaporator according to an embodiment of the present application; Fig. 16 is a schematic view of a condenser according to an embodiment of the present application; Fig. 17 is a schematic view of a vehicle body according to an embodiment of the present application; Fig. 18 is a schematic view of a vehicle temperature regulation system according to another embodiment of the present application; Fig. 19 is a schematic view of a valve according to another embodiment of the present application; Fig. 20 is a schematic view of a valve core assembly according to another embodiment of the present application; Fig. 21 is a schematic view of a first elastic member according to another embodiment of the present application; Fig. 22 is a schematic view of a support member according to another embodiment of the present application; Fig. 23 is a schematic view of a mounting sleeve according to another embodiment of the present application; Fig. 24 is a schematic view of a second elastic member according to another embodiment of the present application; Fig. 25 is a schematic view of a first sealing member according to another embodiment of the present application; Fig. 26 is a schematic view of a second sealing member according to another embodiment of the present application; Fig. 27 is a schematic view of a third sealing member according to another embodiment of the present application; Fig. 28 is a schematic view of a mounting member according to another embodiment of the present application; Fig. 29 is a schematic view of a protection shell according to another embodiment of the present application; Fig. 30 is a schematic view of a stop assembly according to another embodiment of the present application; Fig. 31 is a schematic view of a compressor according to another embodiment of the present application; Fig. 32 is a schematic view of an evaporator according to another embodiment of the present application; Fig. 33 is a schematic view of a condenser according to another embodiment of the present application; Fig. 34 is a schematic view of a vehicle body according to another embodiment of the present application. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to 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 the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without any creative work fall within the protection scope of the present application.

[0055] In the description of the utility model, it is necessary to understand that the orientation or relative position relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer" and the like is based on the orientation or relative position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. Unless otherwise specified, the above directional description can be flexibly set in the actual application process under the condition of meeting the relative position relationship shown in the drawings.

[0056] The terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0057] In the description of the utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "communication" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. It can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0058] In the embodiments of the utility model, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes the elements inherent in such process, article or device. Without more limitation, the element defined by the sentence "including a" does not exclude the existence of another identical element in the process, article or device including the element.

[0059] In the embodiments of the utility model, the words such as "exemplary" or "for example" are used to represent as an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the utility model should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. On the contrary, the words such as "exemplary" or "for example" are intended to present the relevant concept in a specific way.

[0060] In the description of the specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0061] The electromagnetic valve, as a kind of electromagnetic driven valve, can be applied to the control of various fluids as a core component.

[0062] Based on this, the application provides a vehicle 1000, as shown in Figure 1 , Figure 1 The vehicle 1000 provided by the embodiment of the application has the external structure diagram, and the vehicle 1000 includes a vehicle body 200 and a temperature regulation system 100.

[0063] For example, the temperature regulation system 100 can be an air conditioning system, which is used to regulate the temperature inside the vehicle 1000 and improve the comfort of the user driving the vehicle 1000.

[0064] For example, the temperature regulation system 100 can be a refrigerator system of the vehicle 1000, which is used to refrigerate or keep warm food and drinks and the like, and improve the user experience of the vehicle 1000.

[0065] As shown in Figure 2 , Figure 2 For Figure 1 , the structure diagram of the temperature regulation system 100, the temperature regulation system 100 includes an evaporator 30, a compressor 20, a condenser 40 and a refrigerant circuit. The evaporator 30, the compressor 20 and the condenser 40 are connected in series in the refrigerant circuit, so that the refrigerant in the refrigerant circuit can circulate and flow in the evaporator 30, the compressor 20 and the condenser 40.

[0066] In this way, under the continuous compression of the compressor 20, the refrigerant can absorb heat in the evaporator 30, and then release heat in the condenser 40 after being compressed by the compressor 20, so as to realize the transfer of heat.

[0067] As shown in Figure 2 , Figure 3 , Figure 3 For Figure 2 , the cross-sectional view of the valve 10, the temperature regulation system 100 includes a valve 10, and the valve 10 is connected to the refrigerant circuit for controlling the on-off of the refrigerant circuit.

[0068] For example, the valve 10 can be a switch valve, which can be connected at any suitable position in the refrigerant circuit to control the on-off of the refrigerant circuit.

[0069] For example, the valve 10 can be a throttle valve, which can be connected between the evaporator 30 and the condenser 40 to throttle and depressurize the refrigerant flowing out of the condenser 40, so as to ensure the normal operation of the temperature regulation system 100 and control the on-off of the refrigerant circuit.

[0070] In some embodiments, as shown in Figure 3 Valve 10 includes a valve core assembly 1, a valve body 3, and a driving assembly. Valve core assembly 1 includes a screw rod 11 and a valve core 12, screw rod 11 rotates to drive valve core 12 to move along the axial direction of screw rod 11.

[0071] Driving assembly is used to drive screw rod 11 to rotate.

[0072] Valve body 3 is provided with a cavity 31, and a fluid inlet 32 and an outlet pipeline 33 which are in communication with cavity 31. Valve core assembly 1 is arranged in cavity 31 and can move axially between a first position and a second position.

[0073] When valve core 12 is in the first position, fluid inlet 32 is in communication with outlet pipeline 33. When valve core 12 is in the second position, valve core 12 seals fluid inlet 32.

[0074] For example, the number of fluid inlets 32 can be one or more.

[0075] Through the above arrangement, driving assembly can drive screw rod 11 to rotate, so as to make valve core 12 move between the first position and the second position, thereby opening or closing fluid inlet 32, and realizing the function of valve 10.

[0076] In some embodiments, as shown in Figure 3 Valve 10 further includes a guide pipe 4, which is connected to valve body 3, and the internal space of guide pipe 4 is in communication with cavity 31. Guide pipe 4 is provided with a thread inside.

[0077] Screw rod 11 extends into guide pipe 4 and is screwed with the thread inside.

[0078] Through the above arrangement, since screw rod 11 is screwed with the thread inside guide pipe 4, when screw rod 11 rotates, screw rod 11 will move along its axial direction, thereby driving valve core 12 to move, so that valve core 12 can move between the first position and the second position.

[0079] In some embodiments, as shown in Figure 3 Driving assembly includes a rotor 2 and a stator.

[0080] Rotor 2 is connected to screw rod 11. Stator is used to drive rotor 2 to rotate around the axial direction of screw rod 11, so as to drive valve core 12 to move axially between the first position and the second position.

[0081] In some examples, stator includes a coil, and rotor 2 includes a magnet, the coil is energized to generate a magnetic field to drive the magnet to rotate, so that stator can drive rotor 2 to rotate.

[0082] In this way, the cooperation between the valve core assembly 1, the mover 2, the valve body 3, the guide pipe 4 and the stator can realize the communication or isolation between the outlet pipe 33 and the fluid inlet 32, thereby realizing the function of the valve 10.

[0083] It can be understood that the position of the valve core 12 can be adjusted to adjust the flow rate of the fluid flowing through the valve body 3.

[0084] In some examples, as shown in Figure 3 , the valve 10 further comprises a protective shell 103 connected to the valve body 3 and defining a protection space with the valve body 3, and the mover 2 and the guide pipe 4 are arranged in the protection space.

[0085] It should be noted that the protective shell 103 is made of non-magnetic metal such as stainless steel, so as to protect the mover 2 and prevent the magnetic field generated by the stator from being affected.

[0086] In some examples, as shown in Figure 3 , the guide pipe 4 is provided with a stop assembly 104 for limiting the number of rotations of the mover 2, thereby positioning the screw rod 11 and the valve core 12.

[0087] Specifically, as shown in Figure 3 , Figure 4 , Figure 4 , it is a sectional view of the valve core assembly 1 in Figure 3 , which further comprises a bearing 13, a first elastic member 14 and a support member 15.

[0088] As shown in Figure 4 , Figure 5 , Figure 5 , it is a partial enlarged view of A in Figure 4 , the bearing 13 comprises a bearing inner ring 132 and a bearing outer ring 131, one of the bearing inner ring 132 and the bearing outer ring 131 cooperates with the valve core 12 to limit the valve core 12 to the bearing 13, and the bearing outer ring 131 can rotate circumferentially relative to the bearing inner ring 132.

[0089] The first elastic member 14 is arranged between the screw rod 11 and the bearing 13. The support member 15 is arranged between the first elastic member 14 and the bearing 13 to support the first elastic member 14.

[0090] With the above arrangement, during rotation of the screw rod 11, since the support member 15 is arranged between the first elastic member 14 and the bearing 13, the first elastic member 14 can apply elastic force to the other one of the bearing outer ring 131 or the bearing inner ring 132 through the support member 15, so that the other one of the bearing outer ring 131 or the bearing inner ring 132 rotates synchronously with the screw rod 11, and one of the bearing inner ring 132 or the bearing inner ring 132 does not rotate.

[0091] In this way, compared with the first elastic member 14 contacting the other one of the bearing outer ring 131 or the bearing inner ring 132, the stability of the spool assembly 1 as a whole can be improved by the arrangement of the support member 15, so as to ensure normal use of the spool assembly 1.

[0092] Specifically, with the arrangement of the support member 15, during rotation of the screw rod 11, the first elastic member 14 can be prevented from shaking and offsetting to contact the one of the bearing inner ring 132 or the bearing inner ring 132 at the same time as the spool 12, so as to ensure the function of the bearing. In some embodiments, the support member 15 is supported between the first elastic member 14 and the bearing outer ring 131, and the bearing inner ring 132 is limited by the spool 12, as shown in Figure 5 As shown, the support member 15 includes a fixed portion 151 and an abutting portion 152. The fixed portion 151 is fixed with the first elastic member 14. The fixed portion 151 is connected to one side of the abutting portion 152 facing the screw rod 11, and the abutting portion 152 is arranged on the surface of the bearing outer ring 131 facing the screw rod 11.

[0093] With the above arrangement, since the fixed portion 151 is fixed with the first elastic member 14, the first elastic member 14 can apply elastic force to the bearing outer ring 131 through the fixed portion 151 and the abutting portion 152. Since the abutting portion is arranged on the surface of the bearing outer ring 131 facing the screw rod 11, the support member 15 can be more stably supported between the bearing outer ring 131 and the first elastic member 14 and fixed together, so as to improve the stability of the overall structure of the spool assembly 1.

[0094] In some examples, the bearing inner ring 132 can also be directly fixed with the spool 12.

[0095] In some other examples, the spool 12 includes a body, a mounting column and a second limiting ring.

[0096] The mounting column is connected to one side of the body facing the screw rod and is arranged in the bearing inner ring 132. The second limiting ring is located on one side of the bearing inner ring 132 facing the screw rod 11 and is connected with the mounting column.

[0097] In this way, by arranging the mounting column and the second limiting ring, the bearing 13 can be limited between the body and the second limiting ring, so as to limit the bearing inner ring 132 and the spool 12.

[0098] In addition, compared with the bearing inner ring 132 and the valve element 12 being directly fixed together, when the bearing inner ring 132 and the valve element 12 are limited, the force transmitted from the screw rod 11 to the valve element 12 can be further reduced, so as to further avoid the rotation of the valve element 12, thereby ensuring the normal movement of the valve element 12. In some embodiments, the first elastic member 14 is provided with a limiting channel, the limiting channel extends along the axial direction of the screw rod 11, and the fixed part 151 is arranged in the limiting channel.

[0099] Through the above arrangement, since the fixed part 151 is arranged in the limiting channel, the fixed part 151 can limit the radial movement of the first elastic member 14 along the limiting channel, so that the first elastic member 14 and the fixed part 151 are fixed together, thereby further improving the stability of the overall structure of the valve element assembly 1.

[0100] In some embodiments, the fixed part 151 is in interference fit with the inner wall surface of the limiting channel.

[0101] In this way, the fixed part 151 can limit the movement of the first elastic member 14, so that the fixed part 151 can be more stably fixed with the first elastic member 14, thereby further improving the stability of the overall structure of the valve element assembly 1.

[0102] In some embodiments, along the axial direction of the screw rod 11, the height of the first elastic member 14 is greater than the height of the fixed part 151.

[0103] In this way, the first elastic member 14 can be elastically supported between the screw rod and the support part 15, so as to ensure the support function of the first elastic member 14.

[0104] In some embodiments, as shown in FIG. 1, the fixed part 151 includes a fixed tube 1511. Figure 5

[0105] In this way, since the fixed tube 1511 is internally provided with a space, the material required for processing the fixed part 151 can be saved, thereby saving the material required for processing the support part 15, so as to reduce the manufacturing cost of the support part 15.

[0106] On this basis, in some embodiments, as shown in FIG. 1, the abutting part 152 is arranged between the first elastic member 14 and the bearing outer ring 131. The outer diameter of the first elastic member 14 is less than the outer diameter of the abutting part 152. Figure 5

[0107] In this way, the abutting part 152 can also be in contact with the first elastic member 14, so that the first elastic member 14 can be more stably supported between the bearing outer ring 131 and the screw rod 11, thereby further improving the stability of the overall structure of the valve element assembly 1 and ensuring the normal function of the valve element assembly 1.

[0108] ​​Meanwhile, in the axial direction of the screw rod 11, the projections of the first elastic member 14 and the fixed portion 151 on the bearing 13 are both located within the projection of the abutting portion 152 on the bearing 13, so that the space occupied by the first elastic member 14 and the fixed portion 151 can be reduced, thereby improving the integration of the valve core assembly 1 and facilitating the spatial arrangement of the valve core assembly 1.

[0109] In some embodiments, as shown in Figure 5 The abutting portion 152 is provided with a relief hole 1522 recessed from the side surface of the abutting portion 152 facing the fixed portion 152.

[0110] In this way, during the rotation of the screw rod 11, the relief hole 1522 can avoid the bearing inner ring 132, so as to avoid friction between the abutting portion 152 and the bearing inner ring 132, thereby prolonging the service life of the support member 15 and further prolonging the service life of the valve core assembly 1.

[0111] In some embodiments, the fixed portion 151 and the abutting portion 152 are integrally formed.

[0112] In this way, compared with the case where the fixed portion 151 and the abutting portion 152 are separate structures, when the fixed portion 151 and the abutting portion 152 are integrally formed, the connection strength between the fixed portion 151 and the abutting portion 152 can be increased, thereby improving the stability of the valve core assembly 1 during operation and ensuring the normal use of the valve core assembly 1.

[0113] On this basis, in some embodiments, as shown in Figure 4 , Figure 5 The valve core assembly 1 further comprises a mounting sleeve 16, one end of the mounting sleeve 16 being connected with the screw rod 11. The first elastic member 14, the support member 15, and the bearing 13 are all arranged in the mounting sleeve 16.

[0114] The valve core assembly 1 further comprises a limiting portion 17, the limiting portion 17 being connected to the mounting sleeve 16, and the limiting portion 17 being arranged on the side of the bearing outer ring 131 opposite to the screw rod 11.

[0115] Through the above arrangement, during the rotation of the screw rod 11 and the movement of the screw rod 11 away from the valve core 12, the screw rod 11 can drive the mounting sleeve 16 and the limiting portion 17 to rotate. Since the limiting portion 17 is arranged on the side of the bearing outer ring 131 opposite to the screw rod 11, the screw rod 11 can drive the bearing 13 to move through the mounting sleeve 16 and the limiting portion 17, thereby driving the valve core 12 to move, so as to realize the rotation of the screw rod 11 to drive the movement of the valve core 12 and realize the function of the valve core assembly 1.

[0116] For example, the limiting portion 17 can comprise a plurality of limiting blocks, and the plurality of limiting blocks are all in contact with the bearing outer ring 131.

[0117] Exemplarily, the limiting part 17 can include a first limiting ring, an axial direction of the first limiting ring being consistent with an axial direction of the screw rod 11.

[0118] Through the above setting, compared with a limiting block and the like, a shape of an end face of the first limiting ring facing the screw rod 11 matches a shape of an end face of the bearing outer ring 131 facing away from the screw rod 11, so that the limiting part 17 can be in more close contact with the bearing outer ring 131, thereby further improving stability of the overall structure of the valve core assembly 1.

[0119] Exemplarily, the first elastic member 14 can be a rubber cylinder.

[0120] Exemplarily, the first elastic member 14 can be a first spring, and the first spring is sleeved on the fixed tube 1511.

[0121] In this way, through the setting of the first spring, the space occupied by the first elastic member 14 can be further saved, thereby further improving the integration of the valve core assembly 1.

[0122] In some embodiments, as shown in Figure 4 、 Figure 5 The mounting sleeve 16 includes a first tube segment 161 and a second tube segment 162. The first tube segment 161 is connected with the screw rod 11, and the second tube segment 162 is connected with the limiting part 17. The first tube segment 161 is connected with the second tube segment 162.

[0123] Through the above setting, in the process of assembling the valve core assembly 1, the first tube segment 161 and the second tube segment 162 can be separated, and after the bearing 13, the support member 15 and the first elastic member 14 are installed into the second tube segment 162, the first tube segment 161 and the second tube segment 162 are connected, thereby completing the assembly of the valve core assembly 1.

[0124] In this way, compared with the mounting sleeve 16 being an integral molding structure, when the mounting sleeve 16 includes the first tube segment 161 and the second tube segment 162, the bearing 13, the support member 15 and the first elastic member 14 can be more conveniently installed into the mounting sleeve 16, thereby facilitating the assembly of the valve core assembly 1.

[0125] Exemplarily, the first tube segment 161 and the second tube segment 162 can be detachably connected through screwing, clamping, riveting and the like.

[0126] Exemplarily, the first tube segment 161 and the second tube segment 162 can be connected together through welding after the first elastic member 14, the support member 15 and the bearing 13 are installed in place, so as to improve the structural strength of the mounting sleeve 16.

[0127] In some embodiments, the first tube segment 161 is integrally formed with the screw rod 11.

[0128] In this way, compared with the first pipe section 161 and the screw rod 11 being a separate structure, when the first pipe section 161 and the screw rod 11 are formed as one piece, the connection strength between the first pipe section 161 and the screw rod 11 can be increased, thereby improving the stability of the valve core assembly 1 during operation and ensuring the normal use of the valve core assembly 1.

[0129] In some embodiments, the second tube section 162 and the limiting portion 17 are integrally formed.

[0130] In this way, compared with the second pipe section 162 and the limiting portion 17 being a separate structure, when the second pipe section 162 and the limiting portion 17 are formed as one piece, the connection strength between the second pipe section 162 and the limiting portion 17 can be increased, thereby improving the stability of the valve core assembly 1 during operation and ensuring the normal use of the valve core assembly 1.

[0131] In other embodiments, the support member 15 is supported between the first elastic member 14 and the bearing inner ring 132, and the bearing outer ring 131 is limited by the valve core 12, such as Figure 6 、 Figure 7 As shown, Figure 6 for Figure 2 Another cross-sectional schematic diagram of the valve 10, Figure 6 for Figure 3 Another cross-sectional schematic diagram of the middle valve core assembly 1 , the support member 15 includes a connecting portion 153 , an abutting portion 152 and a fixing portion 151 .

[0132] The connecting portion 153 is fixed to the screw, and the abutting portion 152 is connected to the side of the connecting portion 153 facing away from the screw. The abutting portion 152 is provided on the side of the bearing inner ring 132 facing away from the screw. The fixing portion 151 is supported between the bearing inner ring 132 and the first elastic member 14.

[0133] Through the above arrangement, since the fixing portion 151 is supported between the bearing inner ring 132 and the first elastic member 14, and the abutting portion 152 is arranged on the side surface of the bearing inner ring 132 facing away from the screw, the first elastic member 14 can apply elastic force to the bearing inner ring 132 through the fixing portion 151, so that the bearing 13 and the abutting portion 152 abut together, so that the support member 15 can be more stably supported between the first elastic member 14 and the bearing inner ring 132, thereby improving the stability of the overall structure of the valve core assembly 1.

[0134] In some embodiments, as Figure 6 、 Figure 7 As shown, the connecting portion 153 includes a connecting rod, which passes through the bearing inner ring 132.

[0135] Through the above arrangement, compared with the connection part 153 being arranged on one side of the bearing 13 in the radial direction, the connecting rod is arranged in the bearing inner ring 132, the space occupied by the support 15 can be saved, thereby reducing the volume of the valve core assembly 1 and improving the integration of the valve core assembly 1, thereby facilitating the spatial arrangement of the valve core assembly 1.

[0136] In some embodiments, as shown in Figure 6 、 Figure 7 , the first elastic member 14 is provided with a limiting channel, the limiting channel extends along the axial direction of the screw rod, and the connection part 153 is arranged in the limiting channel.

[0137] Through the above arrangement, since the connecting rod is arranged in the limiting channel, the connecting rod can limit the radial movement of the first elastic member 14 along the limiting channel, so that the first elastic member 14 and the connecting rod are fixed together, thereby further improving the stability of the overall structure of the valve core assembly 1.

[0138] In some embodiments, the fixing part 151 includes a fixing block, the fixing block is arranged on one side of the connecting rod in the radial direction and located between the first elastic member 14 and the bearing 13.

[0139] In other embodiments, as shown in Figure 6 、 Figure 7 , the fixing part 151 includes a support ring 1512, and the support ring 1512 is sleeved on the connecting rod.

[0140] Through the above arrangement, compared with the fixing part 151 including a fixing block and the like, when the fixing part 151 includes the support ring 1512, the connecting rod can limit the radial movement of the support ring 1512 along the connecting rod, so that the support ring 1512 can be more stably supported between the first elastic member 14 and the bearing 13, thereby further improving the stability of the overall structure of the valve core assembly 1.

[0141] In some examples, the bearing outer ring 131 can also be directly fixed together with the valve core 12.

[0142] In other examples, the valve core 12 includes a body, a mounting pipe, a third limiting ring and a fourth limiting ring. The mounting pipe is connected to one side of the body facing the screw rod, and the axial direction of the mounting pipe is consistent with the axial direction of the screw rod.

[0143] The bearing 13 is arranged in the mounting pipe, the bearing outer ring 131 is located on one side of the third limiting ring facing the screw rod and connected with the inner wall surface of the mounting pipe. The fourth limiting ring is located on one side of the bearing outer ring 131 facing the screw rod and connected with the inner wall surface of the mounting pipe.

[0144] In this way, through the arrangement of the third limiting ring and the fourth limiting ring, the bearing 13 can be limited in the mounting pipe, so as to limit the bearing outer ring 131 and the valve core 12.

[0145] In addition, compared with the bearing outer ring 131 and the valve core 12 being directly fixed together, when the bearing outer ring 131 and the valve core 12 are limitedly arranged, the force transmission from the screw rod 11 to the valve core 12 can be further reduced, so as to further avoid the rotation of the valve core 12, thereby ensuring the normal movement of the valve core 12.

[0146] On this basis, in some embodiments, as shown in Figure 3 、 Figure 8 , Figure 8 is Figure 3 a sectional view of the valve core assembly 1 and the second elastic member 6, the valve 10 further comprises a second elastic member 6, which is elastically supported between the valve core 12 and the guide pipe 4.

[0147] Through the above arrangement, in the process of opening the valve 10, the valve core 12 will move with the screw rod 11 and gradually approach the guide pipe 4, and the second elastic member 6 will be gradually compressed and exert a spring force on the guide pipe 4 and the valve core 12, the direction of the spring force being opposite to the direction of the pulling force exerted by the bearing 13 on the valve core 12.

[0148] In this way, the valve core 12 can move more stably with the screw rod 11 under the action of the pulling force of the bearing 13 and the spring force of the second elastic member 6, so as to improve the stability of the valve 10 during operation and ensure the normal function of the valve 10.

[0149] And in the process of closing the valve 10, the elastic potential energy stored in the compression process of the second elastic member 6 can be released, and the second elastic member 6 can be used to push the valve core 12 to move to the second position, thereby achieving the closing of the valve 10.

[0150] It can be understood that in the process of moving the valve core 12 to the second position by the second elastic member 6, the screw rod 11 will rotate in the opposite direction and reset.

[0151] For example, the second elastic member 6 can be a rubber column.

[0152] For example, the second elastic member 6 comprises a second spring, and the second spring is sleeved on the valve core assembly 1.

[0153] In this way, through the arrangement of the second spring, the space occupied by the second elastic member 6 can be saved, so as to improve the integration of the valve 10 and facilitate the space arrangement of the valve 10.

[0154] In some embodiments, the valve core 12 comprises a piston, which can move along the inner wall surface of the cavity 31 and is sealingly arranged with the inner wall surface of the cavity 31.

[0155] Through the above arrangement, during the movement of the piston, since the piston is sealingly arranged with the inner wall surface of the cavity 31, fluid and the like cannot flow through the gap between the piston and the inner wall surface of the cavity 31, so that leakage of the valve 10 can be avoided, thereby ensuring the normal function of the valve 10.

[0156] For example, the shape of the piston can also be prismatic, and correspondingly, the shape of the cavity 31 is also prismatic.

[0157] For example, the shape of the piston is cylindrical, and the outer diameter of the piston is a. The shape of the cavity 31 is also cylindrical, and the inner diameter of the cavity 31 is b, 0.1mm > b-a > 0.04mm.

[0158] Through the above arrangement, when the difference between the inner diameter b of the cavity 31 and the outer diameter a of the piston is within the above range, the piston can be smoothly slid in the valve body 3, and at the same time, the gap between the piston and the cavity 31 can be avoided to be too large, thereby increasing the resistance of fluid flowing in the gap between the piston and the cavity 31, and improving the sealing effect of the piston.

[0159] In some embodiments, as shown in Figure 4 A cavity 121 is formed in the piston, and when the outer wall surface of the piston is machined, the piston can be supported in the interior of the piston through the cavity 121, so as to facilitate the machining of the outer wall surface of the piston.

[0160] At the same time, through the arrangement of the cavity 121, the material required for machining the piston can be reduced, thereby reducing the machining cost of the piston.

[0161] In some embodiments, as shown in Figure 3 The valve 10 further comprises a first sealing member 7, which is arranged between the piston and the inner wall surface of the cavity 31 and in contact with the piston and the inner wall surface of the cavity 31, for sealing the gap between the piston and the inner wall surface of the cavity 31.

[0162] For example, the first sealing member 7 can be a rubber sheet, a rubber ring, or the like.

[0163] Through the above arrangement, since the first sealing member 7 is in contact with the piston and the inner wall surface of the cavity 31, fluid cannot flow in the gap between the first sealing member 7 and the piston, nor in the gap between the first sealing member 7 and the inner wall surface of the cavity 31, so that the sealing arrangement of the piston and the inner wall surface of the cavity 31 can be achieved.

[0164] In some examples, the outer peripheral wall of the piston is provided with a mounting groove, and the first sealing member 7 is arranged in the mounting groove, so that the first sealing member 7 can be fixed and prevented from falling off.

[0165] In some embodiments, the first sealing member 7 is located on a side of the fluid inlet 32 ​​close to the screw 11 .

[0166] It can be understood that the fluid inlet 32 ​​is located on the circumferential side wall of the cavity 31 .

[0167] like Figure 4 、 Figure 9 As shown, Figure 9 for Figure 3 A schematic cross-sectional view of the middle valve core 12 shows that the piston is provided with a through hole 122 , and the through hole 122 passes through the piston along the axial direction of the screw 11 .

[0168] For example, the number of the through hole 122 may be one or more.

[0169] Through the above arrangement, since the first sealing member 7 is located on the side of the fluid inlet 32 ​​close to the screw 11, the fluid will not flow to the side of the valve core 12 facing the screw 11, nor will it flow further from the through hole 122 to the outlet pipe 33. In this way, when the valve core 12 is in the second position, the valve core 12 can ensure the shut-off function of the fluid inlet 32 ​​and the outlet pipe 33.

[0170] In this way, during the movement of the piston, the fluid on the side of the piston facing the screw 11 can flow toward the side of the piston facing the outlet pipe 33, and the fluid on the side of the piston facing the outlet pipe 33 can flow toward the side of the piston facing the screw 11. This can avoid squeezing the fluid during the movement of the piston, thereby reducing the resistance received by the piston during movement, thereby ensuring the normal movement of the piston and the normal function of the valve 10.

[0171] On this basis, in some embodiments, such as Figure 3 、 Figure 10 As shown, Figure 10 for Figure 3 The cross-sectional view of the second subsection 36 and the second sealing member 8 is shown in FIG. The valve 10 further includes the second sealing member 8, which is disposed within the cavity 31 and contacts the inner wall of the cavity 31. The second sealing member 8 is located on the side of the fluid inlet 32 ​​near the outlet pipe 33. When the valve core 12 is in the second position, the second sealing member 8 contacts the valve core 12 and seals the gap between the cavity 31 and the valve core 12.

[0172] With the above arrangement, when the valve core 12 is in the second position, since the second sealing member 8 is located at the fluid inlet 32 on the side close to the outlet pipeline 33, the second sealing member 8 is in contact with the valve core 12 and the inner wall surface of the cavity 31, thus the fluid at the fluid inlet 32 cannot flow into the outlet pipeline 33 through the gap between the second sealing member 8 and the inner wall surface of the cavity 31, nor through the gap between the second sealing member 8 and the valve core 12, so as to realize the sealing of the fluid inlet 32 by the valve core 12.

[0173] In some examples, the second sealing member 8 is located at the inlet of the outlet pipeline 33.

[0174] In some embodiments, as shown in Figure 10 , the second sealing member 8 comprises a sealing ring 81, and the radial dimension of at least part of the inner circumferential surface of the sealing ring 81 gradually decreases in the direction of the screw rod 11 close to the valve core 12.

[0175] For example, the inner circumferential surface of the sealing ring 81 can be curved or planar.

[0176] For example, the sealing ring 81 can be a rubber ring, a plastic ring, etc.

[0177] With the above arrangement, since the radial dimension of at least part of the inner circumferential surface of the sealing ring 81 gradually decreases in the direction of the screw rod 11 close to the valve core 12, the inner circumferential surface of the sealing ring 81 is more likely to elastically deform than the end surface of the sealing ring 81 facing the screw rod 11, and when the valve core 12 is in the second position, the valve core 12 can be more tightly pressed together with the sealing ring 81 under the elastic force of the second elastic member 6, thereby improving the sealing effect of the valve core 12 on the fluid inlet 32.

[0178] In some embodiments, as shown in Figure 3 , Figure 10 , the inner wall surface of the cavity 31 is provided with a groove 34, the sealing ring 81 is arranged in the groove 34, and the end surface of the sealing ring 81 facing away from the screw rod 11 is in contact with the end surface of the outlet pipeline 33 facing the screw rod 11.

[0179] The valve 10 further comprises a limiting plate 9 arranged in the groove 34 and connected with the inner wall surface of the groove 34. The end surface of the limiting plate 9 facing away from the screw rod 11 is in contact with the end surface of the second sealing member 8 facing the screw rod 11.

[0180] It should be noted that the groove 34 is a ring-shaped groove extending along the circumference of the screw rod 11.

[0181] Through the above-mentioned setting, the limit plate 9 can limit the sealing ring 81 from moving in the direction close to the screw 11, and the outlet pipe 33 can limit the sealing ring 81 from moving in the direction away from the screw 11. In this way, the sealing ring 81 can be restricted in the groove 34, thereby preventing the sealing ring 81 from falling off and ensuring the normal function of the valve 10.

[0182] In some examples, such as Figure 10 As shown, the valve 10 also includes a third sealing member 101, which is arranged in the groove 34 and located between the inner wall surface of the groove 34 and the sealing ring 81, and is used to seal the gap between the groove 34 and the sealing ring 81, thereby further ensuring the sealing effect between the valve core 12 and the cavity 31.

[0183] In some examples, such as Figure 3 、 Figure 10 As shown, the valve body 3 includes a first sub-portion 35 and a second sub-portion 36 , and the fluid inlet 32 ​​and the outlet pipe 33 are provided on the second sub-portion 36 .

[0184] In this way, the first sub-portion 35 and the second sub-portion 36 can be processed separately and then put together, which can reduce the processing difficulty of the valve body 3 and facilitate the processing of the valve body 3.

[0185] Based on the above, in some embodiments, such as Figure 3 、 Figure 11 As shown, Figure 11 for Figure 3 The valve 10 further includes a mounting member 102, which is arranged around the valve body 3 and connected to the valve body 3. A mounting portion 1021 is provided on the outer peripheral wall of the mounting member 102, and the mounting portion 1021 is used to connect to the member 102 to be mounted.

[0186] Illustratively, the component to be installed 102 may be a liquid pipeline, a gas pipeline, or the like.

[0187] Through the above-mentioned arrangement, after assembling the valve body 3 and the valve core 12 groups, the mounting part 102 can be connected to the valve body 3, and then connected together to the part to be mounted 102, thereby realizing the installation of the valve 10. This can simplify the installation process of the valve 10 and facilitate the installation of the valve 10.

[0188] In some embodiments, the mounting portion 1021 includes threads, so that the valve 10 can be screwed together with the component 102 to be mounted, thereby further facilitating the installation of the valve 10 .

[0189] In some examples, the mounting piece 102 is formed with a clamping portion in a prismatic shape, and when the valve 10 is mounted, the clamping portion can be rotated by a tool or the like, so as to realize the connection of the thread on the mounting piece 102 and the to-be-mounted piece 102, and facilitate the mounting of the valve 10.

[0190] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A valve core assembly, characterized in that: include: Valve core (12); a screw (11), wherein the screw (11) rotates to drive the valve core (12) to move along the axial direction of the screw (11); A bearing (13), the bearing (13) comprising a bearing inner ring (132) and a bearing outer ring (131), one of the bearing inner ring (132) and the bearing outer ring (131) cooperating with the valve core (12) so that the valve core (12) limits the position of the bearing (13), and the bearing outer ring (131) is circumferentially rotatable relative to the bearing inner ring (132); a first elastic member (14), the first elastic member (14) being disposed between the screw (11) and the bearing (13); A support member (15) is provided between the first elastic member (14) and the bearing (13) to support the first elastic member (14).

2. The valve core assembly according to claim 1, characterized in that The support member (15) comprises: a fixing portion (151), the fixing portion (151) being fixed to the first elastic member (14); The abutment portion (152) is connected to a side of the abutment portion (152) facing the screw (11), and the abutment portion (152) is provided on a side surface of the bearing outer ring (131) facing the screw (11).

3. The valve core assembly according to claim 2, characterized in that: The first elastic member (14) is provided with a limiting channel, the limiting channel extends along the axial direction of the screw rod (11), and the fixing portion (151) is arranged in the limiting channel.

4. The valve core assembly according to claim 3, characterized in that: The fixing portion (151) is interference-fitted with the inner wall surface of the limiting channel.

5. The valve core assembly according to claim 4, characterized in that: Along the axial direction of the screw rod (11), the height of the first elastic member (14) is greater than the height of the fixing portion (151).

6. The valve core assembly according to claim 2, characterized in that: The fixing portion (151) includes a fixing tube (1511).

7. The valve core assembly according to claim 2, characterized in that: The abutting portion (152) is provided between the first elastic member (14) and the bearing outer ring (131); the outer diameter of the first elastic member (14) is smaller than the outer diameter of the abutting portion (152).

8. The valve core assembly according to claim 7, characterized in that: The abutting portion (152) is provided with an avoidance hole (1522), and the avoidance hole (1522) is recessed from a side surface of the abutting portion (152) facing away from the fixing portion (151) toward the fixing portion (151).

9. The valve core assembly according to any one of claims 2 to 8, characterized in that: The fixing portion (151) and the abutting portion (152) are integrally formed.

10. The valve core assembly according to any one of claims 1 to 8, characterized in that: The first elastic member (14) comprises a first spring.

11. The valve core assembly according to any one of claims 1 to 8, characterized in that: Also includes: a mounting sleeve (16), one end of which is connected to the screw rod (11); the first elastic member (14), the support member (15) and the bearing (13) are all arranged in the mounting sleeve (16); A limiting portion (17), the limiting portion (17) is connected to the mounting sleeve (16), and the limiting portion (17) is provided on a side of the bearing outer ring (131) facing away from the screw rod (11).

12. The valve core assembly according to claim 11, characterized in that: The limiting portion (17) comprises a first limiting ring, and the axial direction of the first limiting ring is consistent with the axial direction of the screw (11).

13. The valve core assembly according to claim 11, characterized in that The mounting sleeve (16) comprises a first pipe section (161) and a second pipe section (162); the first pipe section (161) is connected to the screw rod (11), and the second pipe section (162) is connected to the limiting portion (17); The first pipe section (161) is connected to the second pipe section (162).

14. The valve core assembly according to claim 13, characterized in that The first pipe section (161) and the screw rod (11) are integrally formed; the second pipe section (162) and the limiting portion (17) are integrally formed.

15. The valve core assembly according to claim 1, wherein: The support member (15) comprises: a connecting portion (153), wherein the connecting portion (153) is fixed to the screw rod (11); an abutting portion (152), the abutting portion (152) being connected to a side of the connecting portion (153) facing away from the screw (11), and the abutting portion (152) being provided on a surface of a side of the bearing inner ring (132) facing away from the screw (11); A fixing portion (151), wherein the fixing portion (151) is supported between the bearing inner ring (132) and the first elastic member (14).

16. The valve core assembly according to claim 15, characterized in that The connecting portion (153) includes a connecting rod, and the connecting portion (153) is penetrated by the bearing inner ring (132).

17. The valve core assembly according to claim 16, characterized in that The first elastic member (14) is provided with a limiting channel, the limiting channel extends along the axial direction of the screw rod (11), and the connecting portion (153) is arranged in the limiting channel.

18. The valve core assembly according to claim 17, characterized in that The fixing portion (151) comprises a support ring (1512), and the support ring (1512) is sleeved on the connecting rod.

19. A valve, characterized in that: include: The valve core assembly according to any one of claims 1 to 18; A drive assembly, the drive assembly is used to drive the screw to rotate; A valve body (3), the valve body (3) being provided with a cavity (31) and a fluid inlet (32) and an outlet pipe (33) communicating with the cavity (31); The valve core assembly is arranged in the cavity (31) and is movable between a first position and a second position; When the valve core (12) is located at the first position, the fluid inlet (32) is connected to the outlet pipeline (33); when the valve core (12) is located at the second position, the valve core (12) seals the fluid inlet (32).

20. The valve according to claim 19, characterized in that Also includes: A guide tube (4), the guide tube (4) is connected to the valve body (3), and the internal space of the guide tube (4) is communicated with the cavity (31); a thread is provided in the guide tube (4); The screw rod (11) extends into the guide tube (4) and is threadedly connected to the thread.

21. The valve according to claim 20, characterized in that The drive assembly includes: a mover (2), the mover (2) being connected to the screw (11); A stator is used to drive the mover (2) to rotate axially around the screw (11) to drive the valve core (12) to move axially between a first position and a second position.

22. The valve according to claim 21, characterized in that Also includes: A second elastic member (6), wherein the second elastic member (6) is elastically supported between the valve core (12) and the guide tube (4).

23. The valve according to claim 22, characterized in that The second elastic member (6) comprises a second spring, and the second spring is sleeved on the valve core assembly.

24. The valve according to any one of claims 19 to 23, characterized in that: The valve core (12) comprises a piston, which is capable of moving along the inner wall surface of the cavity (31) and is sealed with the inner wall surface of the cavity (31).

25. The valve according to claim 24, characterized in that The piston is cylindrical in shape, and the outer diameter of the piston is a; the cavity (31) is also cylindrical in shape, and the inner diameter of the cavity (31) is b, 0.1 mm>ba>0.04 mm.

26. The valve according to claim 24, characterized in that Also includes: A first sealing member (7) is provided between the piston and the inner wall surface of the cavity (31), and contacts both the piston and the inner wall surface of the cavity (31), and is used to seal the gap between the piston and the inner wall surface of the cavity (31).

27. The valve according to claim 26, characterized in that The first sealing member (7) is located on a side of the fluid inlet (32) close to the screw (11); The piston is provided with a through hole (122), and the through hole (122) passes through the piston along the axial direction of the screw rod (11).

28. The valve according to claim 22, wherein Also includes: A second sealing member (8) is provided in the cavity (31) and contacts the inner wall surface of the cavity (31). The second sealing member (8) is located on a side of the fluid inlet (32) close to the outlet pipe (33). When the valve core (12) is in the second position, the second sealing member (8) contacts the valve core (12) and seals the gap between the cavity (31) and the valve core (12).

29. The valve according to claim 28, characterized in that The second sealing member (8) comprises a sealing ring (81), and the radial dimension of at least a portion of the inner peripheral surface of the sealing ring (81) gradually decreases along the direction in which the screw (11) approaches the valve core (12).

30. The valve according to claim 29, characterized in that The inner wall surface of the cavity (31) is provided with a groove (34), the sealing ring (81) is provided in the groove (34), and the end surface of the sealing ring (81) facing away from the screw (11) contacts the end surface of the outlet pipe (33) facing the screw (11); The valve further comprises: A limit plate (9), the limit plate (9) is arranged in the groove (34) and connected to the inner wall surface of the groove (34); the end surface of the limit plate (9) facing away from the screw (11) contacts the end surface of the second sealing member (8) facing the screw (11).

31. The valve according to any one of claims 19 to 23, characterized in that: Also includes: A mounting member (102) is provided around the valve body (3) and is connected to the valve body (3); a mounting portion (1021) is provided on the outer peripheral wall of the mounting member (102), and the mounting portion (1021) is used to connect to the member to be mounted (102).

32. The valve according to claim 31, characterized in that The mounting portion (1021) includes threads.

33. A temperature control system, characterized in that: include: Evaporator (30); compressor (20); Condenser (40); A refrigerant circuit, wherein the evaporator (30), the compressor (20) and the condenser (40) are connected in series to the refrigerant circuit so that the refrigerant in the refrigerant circuit can circulate in the evaporator (30), the compressor (20) and the condenser (40); The valve according to any one of claims 19 to 32, wherein the valve is connected to the refrigerant circuit and is used to control the on / off state of the refrigerant circuit.

34. A vehicle, characterized in that: include: Vehicle body (200); The temperature regulating system according to claim 33, wherein the temperature regulating system is connected to the vehicle body (200).

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