CN219734272U - Valve, thermal management system, vehicle and energy storage device - Google Patents

Abstract

The utility model discloses a valve, a thermal management system, a vehicle and energy storage equipment, and belongs to the technical field of valves. The valve includes valve body subassembly, the case, the bearing, the valve rod, at least two first sealing members and elastic sealing washer, valve body subassembly forms the inner chamber, the case is installed in the inner chamber, the bearing is installed in valve body subassembly, and be equipped with first installation cavity and encircle the second installation cavity in first installation cavity, second installation cavity and first installation cavity and inner chamber intercommunication, the valve rod links to each other with the case, valve rod and first installation cavity clearance fit, at least two first sealing members are installed between valve rod and bearing, elastic sealing washer, install in the second installation cavity, and elastic sealing washer and second installation cavity are along the axial sealing fit of bearing, radially elastically scalable along the bearing. By arranging the elastic sealing ring which can elastically stretch along the radial direction of the bearing, the elastic sealing ring can elastically stretch along with the pressure difference change between the first installation cavity and the inner cavity, so that the pressure pressures at two sides of the elastic sealing ring are balanced, and the axial leakage of fluid along the valve rod is avoided.

Description

Valve, thermal management system, vehicle and energy storage device

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to a valve, a thermal management system, a vehicle and energy storage equipment.

Background

The valve is generally used for controlling the on-off or switching of fluid in a system pipeline, the function of on-off fluid or switching fluid flow direction is achieved through the rotation of the valve core, in the working process, the fluid can leak outwards along the axial direction of the valve rod, particularly, the leakage risk is higher when the fluid is at high pressure, and the axial leakage of the fluid is effectively limited.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the present utility model proposes a valve, thermal management system, vehicle and energy storage device to avoid leakage of fluid in the axial direction of the valve stem.

In a first aspect, the present utility model provides a valve comprising:

a valve body assembly defining an interior cavity;

the valve core is arranged in the inner cavity;

the bearing is arranged on the valve body assembly and is provided with a first installation cavity and a second installation cavity surrounding the first installation cavity, and the second installation cavity is communicated with the first installation cavity and the inner cavity;

the valve rod penetrates through the first mounting cavity and is connected with the valve core, and the valve rod is in clearance fit with the first mounting cavity;

at least two first seals mounted between the valve stem and the bearing;

the elastic sealing ring is arranged in the second installation cavity, and is in sealing fit with the second installation cavity along the axial direction of the bearing, and can elastically stretch and retract along the radial direction of the bearing.

According to the valve provided by the utility model, the elastic sealing ring can be elastically stretched and contracted along the radial direction of the bearing, so that the elastic sealing ring can be elastically stretched and contracted along with the pressure difference between the first mounting cavity and the inner cavity, the pressure on two sides of the elastic sealing ring is balanced, the fluid is prevented from penetrating into the first mounting cavity, and the fluid is further prevented from leaking along the axial direction of the valve rod.

According to one embodiment of the utility model, the bearing is provided with a communication hole, a first end of which is connected to the second mounting cavity, and a second end of which is connected to the first mounting cavity.

According to one embodiment of the utility model, the size of the communication hole is smaller than the size of the second mounting cavity.

According to one embodiment of the utility model, the communication hole includes a plurality of spaced-apart around the circumference of the first mounting cavity.

According to one embodiment of the utility model, a sealing cavity is formed among the elastic sealing ring, the bearing, the valve rod and the at least two first sealing pieces, and sealing oil is arranged in the sealing cavity.

According to one embodiment of the utility model, the peripheral wall of the first mounting cavity is provided with at least two first sealing grooves, and the at least two first sealing elements are mounted on the first sealing grooves in a one-to-one correspondence manner.

According to one embodiment of the utility model, the elastic sealing ring and the second mounting cavities are in one-to-one correspondence, and the second mounting cavities are arranged at intervals along the axial direction of the bearing.

According to one embodiment of the utility model, the bearing comprises a cover and a flange connected to the cover, the flange being connected to the valve body assembly.

According to one embodiment of the utility model, a second seal is provided between the cover and the valve body assembly, the second seal being located between the valve body assembly and the flange.

According to one embodiment of the utility model, the valve further comprises:

and the actuator is in power coupling connection with the valve rod, and the valve is an electric valve.

In a second aspect, the present utility model provides a thermal management system comprising:

a valve as claimed in any preceding claim.

According to the thermal management system, the elastic sealing ring is arranged in the valve and can elastically stretch and retract along the radial direction of the bearing, so that the elastic sealing ring can elastically stretch and retract along with the pressure difference between the first mounting cavity and the inner cavity, the pressure on two sides of the elastic sealing ring is balanced, the fluid is prevented from penetrating into the first mounting cavity, and the fluid is prevented from leaking along the axial direction of the valve rod.

According to one embodiment of the utility model, the thermal management system further comprises:

the compressor, elastic sealing ring, the bearing, the valve rod and form the sealed chamber between at least two first sealing members, sealed chamber with be equipped with the refrigerating machine oil of same type in the compressor.

In a third aspect, the present utility model provides a vehicle comprising:

a thermal management system as claimed in any one of the preceding claims.

In a fourth aspect, the present utility model provides an energy storage device comprising:

a thermal management system as claimed in any one of the preceding claims.

According to the vehicle and the energy storage device, the elastic sealing ring is arranged in the valve of the thermal management system and can elastically stretch and retract along the radial direction of the bearing, so that the elastic sealing ring can elastically stretch and retract along with the pressure difference change between the first mounting cavity and the inner cavity, the pressure at two sides of the elastic sealing ring is balanced, the fluid is prevented from penetrating into the first mounting cavity, and the fluid is further prevented from leaking along the axial direction of the valve rod.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a valve according to an embodiment of the present utility model;

FIG. 2 is a schematic cross-sectional view of a valve according to an embodiment of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a schematic cross-sectional view at B-B in FIG. 2;

FIG. 5 is a schematic cross-sectional view of a bearing according to an embodiment of the present utility model;

FIG. 6 is a schematic illustration of an assembly of a bearing and a valve stem provided by an embodiment of the present utility model;

fig. 7 is an exploded view of fig. 6.

Reference numerals:

a valve 100;

valve body assembly 110, valve port 111;

a valve core 120;

bearing 130, first installation cavity 131, second installation cavity 132, communication hole 133, first seal groove 134, cover 135, flange 136, second seal groove 137;

a valve stem 140;

a first seal 150;

an elastic seal ring 160;

a second seal 170;

an actuator 180.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The utility model discloses a valve 100.

A valve 100 according to an embodiment of the present utility model is described below with reference to fig. 1-7.

As shown in fig. 1-3, the valve 100 includes a valve body assembly 110, a valve spool 120, a bearing 130, a valve stem 140, at least two first seals 150, and an elastomeric seal ring 160.

The valve body assembly 110 defines an inner cavity, the valve core 120 is installed in the inner cavity, at least two valve ports 111 are arranged on the valve body assembly 110, the valve ports 111 are connected with the inner cavity and the outside of the valve body assembly 110 and used for connecting pipelines, and the valve core 120 is installed in the inner cavity and used for controlling the on-off or switching of the at least two valve ports 111.

As shown in fig. 4, the valve port 111 may be provided with two, three, four or more, without limitation, when the valve port 111 is provided with three, the valve 100 is a three-way valve, when the valve port 111 is provided with four, the valve 100 is a four-way valve, and so on.

The bearing 130 is mounted on the valve body assembly 110, and is provided with a first mounting cavity 131 and a second mounting cavity 132 surrounding the first mounting cavity 131, the second mounting cavity 132 is communicated with the first mounting cavity 131 and the inner cavity, the valve rod 140 penetrates through the first mounting cavity 131 and is connected with the valve core 120, and the valve rod 140 is in clearance fit with the first mounting cavity 131.

One side of the valve body assembly 110 is provided with a mounting hole, the bearing 130 is mounted in the mounting hole, a first mounting cavity 131 is arranged in the bearing 130 and is used for being communicated to an inner cavity so that the valve rod 140 penetrates through and is connected with the valve core 120, the valve rod 140 is rotated to drive the valve core 120 to move to realize on-off and conversion of a flow path, and the valve rod 140 and the bearing 130 are pivotally assembled to play a role in reducing friction resistance when the valve rod 140 rotates.

The bearing 130 is further provided with a second installation cavity 132 surrounding the first installation cavity 131, the second installation cavity 132 is arranged on the outer side of the bearing 130, so that the outer end of the second installation cavity 132 is communicated with the inner cavity, the inner end of the second installation cavity 132 is also communicated with the first installation cavity 131, and the first installation cavity 131, the second installation cavity 132 and the inner cavity are mutually communicated.

At least two first seals 150 are mounted between the valve stem 140 and the bearing 130.

The two first sealing members 150 are disposed at intervals along the axial direction of the valve stem 140, and the two first sealing members 150 respectively seal gaps between the valve stem 140 and the bearing 130 to isolate fluid in the inner cavity and prevent leakage of the fluid to the outside, so that an isolated space is defined by the two first sealing members 150, the inner side wall of the first installation cavity 131 and the outer side wall of the valve stem 140 in the first installation cavity 131, and the second installation cavity 132 is communicated with the isolated space.

It will be appreciated that the first seal 150 may be an O-ring, an X-ring, or a seal ring having a cross-section of other shapes, without limitation.

The elastic sealing ring 160 is mounted in the second mounting cavity 132, and the elastic sealing ring 160 and the second mounting cavity 132 are in sealing fit along the axial direction of the bearing 130, and can elastically stretch and retract along the radial direction of the bearing 130.

The elastic sealing ring 160 is installed in the second installation cavity 132 and surrounds the outside of the valve rod 140, the elastic sealing ring 160 and the second installation cavity 132 are in sealing fit along the axial direction of the bearing 130, the isolated space is sealed by the elastic sealing ring 160 to form a sealing cavity, and the sealing cavity is completely isolated from the inner cavity.

The cross-sectional dimension of the elastic sealing ring 160 is smaller than the depth of the second installation cavity 132 in the radial direction of the bearing 130, so that the elastic sealing ring 160 is elastically deformed, the elastic sealing ring 160 is elastically telescopic along the radial direction of the bearing 130, that is, the elastic sealing ring 160 is not fixedly arranged in the radial direction of the bearing 130, the diameter of the elastic sealing ring 160 can be changed, the diameter of the elastic sealing ring 160 is close to the outer edge of the second installation cavity 132 at the maximum, and the elastic sealing ring abuts against the inner side wall of the second installation cavity 132 at the minimum.

The elastic seal ring 160 may be an O-ring, an X-ring, or a seal ring having another shape in cross section, which is not limited herein.

In the related art, a bearing has an outer shaft seal and an inner shaft seal, and a fluid shaft seal is constructed between the shaft seals. The sealing device composed of the outer shaft seal, the inner shaft seal and the fluid shaft seal positioned in the middle can prevent the fluid flowing through the ball valve from overflowing through the gap of the shaft in the bearing. Or the second installation cavity is arranged in the valve rod, the side wall of the valve rod is provided with a communication hole which is communicated with the first installation cavity, the second installation cavity is communicated with the inner cavity, and the piston assembly is arranged in the valve rod.

The technical scheme optimizes and enhances the problem of overflow of fluid through a gap of a valve rod in the bearing in principle, and provides two structures of oil sealing outside the bearing and oil sealing inside the valve rod; but the number of parts is increased, the assembly difficulty and the oil sealing process operation are difficult, the wall thickness of the valve rod and the bearing parts is reduced, and the structural strength and the durability of the parts can be negatively influenced.

In the utility model, the outer diameter of the bearing 130 is enlarged, and the method of designing the elastic sealing ring 160 and the second mounting cavity 132 in the bearing 130 is adopted on the basis of the differential pressure sealing principle, thereby facilitating oil injection and not affecting the structural strength and durability of parts. When the fluid pressure of the inner cavity changes, the elastic sealing ring 160 is extruded and deformed by different pressures at two sides, so that the technical effect of balancing the pressures at two sides is realized.

When the fluid pressure in the inner cavity is greater than the pressure in the sealing cavity, the diameter of the elastic sealing ring 160 is reduced, the volume of the sealing cavity is compressed by inward contraction, the pressure in the sealing cavity is increased along with the diameter, until the pressure in the sealing cavity is balanced with the pressure in the inner cavity, and when the pressure on two sides is balanced, the fluid in the inner cavity does not have the tendency to permeate into the sealing cavity through the elastic sealing ring 160 and the first sealing piece 150. Even when the elastic sealing ring 160 deforms to the limit, the pressure of the sealing cavity cannot be completely balanced with the pressure of the inner cavity, the deformation of the elastic sealing ring 160 can reduce, the pressure difference between two sides of the elastic sealing ring 160 and the first sealing member 150 positioned near one side of the inner cavity can be reduced, and the risk of fluid penetrating into the sealing cavity through the elastic sealing ring 160 and the first sealing member 150 can be reduced.

According to the valve 100 provided by the embodiment of the utility model, the elastic sealing ring 160 is arranged, so that the elastic sealing ring 160 can elastically stretch and retract along with the pressure difference between the first mounting cavity 131 and the inner cavity, the pressure balance between the elastic sealing ring 160 and the two sides of the first sealing piece 150 positioned near one side of the inner cavity is realized, the fluid is prevented from penetrating into the first mounting cavity 131, and the fluid is further prevented from leaking along the axial direction of the valve rod 140; meanwhile, the overall structure layout is simplified, the assembly is convenient, the arrangement of the elastic sealing ring 160 is effectively avoided from influencing the strength and the rigidity of the valve rod 140, the mechanical performance of the valve rod 140 is improved, and the service life of the valve 100 is prolonged.

As shown in fig. 3 and 5, in some embodiments, the bearing 130 may be provided with a communication hole 133, a first end of the communication hole 133 being connected to the second mounting chamber 132, and a second end of the communication hole 133 being connected to the first mounting chamber 131.

In the present embodiment, the communication hole 133 extends in the radial direction of the bearing 130, a first end of the communication hole 133 is an outer end in the radial direction of the bearing 130, a second end of the communication hole 133 is an inner end in the radial direction of the bearing 130, and the first mounting chamber 131 and the second mounting chamber 132 are communicated through the communication hole 133.

As shown in fig. 2 and 3, in some embodiments, the size of the communication hole 133 may be smaller than the size of the second mounting cavity 132.

The size of the communication hole 133 is smaller than that of the second mounting chamber 132 to prevent the elastic sealing ring 160 from being caught or damaged by being pressed into the communication hole 133 when the elastic sealing ring 160 is contracted due to the oversized communication hole 133.

Meanwhile, by setting the size of the communication hole 133 smaller, the volume of the seal chamber can be reduced, so that the pressure change ratio in the seal chamber is larger and the pressure of the seal chamber is easier to change when the elastic seal ring 160 is contracted and expanded, and the adjustment speed is high.

In some embodiments, the communication holes 133 may include a plurality of spaced apart around the circumference of the first mounting cavity 131.

By providing the plurality of communication holes 133 spaced apart around the circumference of the first mounting chamber 131, the pressure at each position around the circumference of the first mounting chamber 131 can be uniformly changed when the elastic seal ring 160 deforms, contracts or expands, and the response sensitivity is higher and more stable.

It should be noted that the number of the communication holes 133 is not limited herein, and the plurality of communication holes 133 may be uniformly distributed around the circumference of the first mounting chamber 131 to ensure uniform variation of pressure at each location. The plurality of communication holes 133 may be axially symmetrically distributed about the axis of the bearing 130, and may ensure uniform pressure variation.

In some embodiments, a seal cavity is formed between the elastic seal 160, the bearing 130, the valve stem 140, and the at least two first seals 150, and seal oil may be disposed in the seal cavity.

In this embodiment, the sealing oil has a high viscosity and is not easily leaked to the outside, and the sealing oil can lubricate the rotation of the valve rod 140, protect the valve rod 140 and the bearing 130, prolong the service life, and reduce the rotation torque.

In order to avoid leakage of the sealing oil in the sealing cavity, the sealing oil may be made of the same material as the fluid flowing in the valve 100, so that contamination of the fluid in the valve 100 or adverse reaction caused by the leakage of the sealing oil may be avoided.

As shown in fig. 3, in some embodiments, the peripheral wall of the first mounting cavity 131 may be provided with at least two first sealing grooves 134, and at least two first seals 150 are mounted to the first sealing grooves 134 in one-to-one correspondence.

In this embodiment, the peripheral wall of the first installation cavity 131 is provided with at least two first sealing grooves 134 for correspondingly installing at least two first sealing members 150, and the two first sealing grooves 134 are disposed near two ends of the first installation cavity 131 to seal two ends of the sealing cavity in cooperation with the two first sealing members 150.

In this embodiment, the first seal 150 may be a first seal ring, the first seal groove 134 is an annular seal groove provided around the first seal cavity, the inner side of the first seal ring in the radial direction of the bearing 130 abuts against the valve stem 140, the outer side abuts against the groove bottom of the first seal groove 134, and both ends of the first seal ring in the axial direction of the bearing 130 abut against both side walls of the first seal groove 134, respectively.

In other embodiments, the circumferential wall of the stem 140 may be provided with at least two first sealing grooves 134, and at least two first seals 150 are mounted to the first sealing grooves 134 in one-to-one correspondence.

In the present embodiment, the first seal groove 134 is provided on the peripheral wall of the stem 140, and the manner of providing the first seal groove 134 can be referred to in the foregoing example.

In this embodiment, the first seal 150 may be a first seal ring, the first seal groove 134 is an annular seal groove, an inner side of the first seal ring in the radial direction of the bearing 130 abuts against a groove bottom of the first seal groove 134, an outer side abuts against a sidewall of the first installation cavity 131, and both ends of the first seal ring in the axial direction of the bearing 130 abut against both sidewalls of the first seal groove 134, respectively.

It can be appreciated that in the above two embodiments, the first sealing member 150 may be provided with more than two first sealing grooves 134 corresponding to the first sealing member 150, and the more than two first sealing members 150 are also distributed at two ends of the insulating space in the axial direction of the valve stem 140, so as to achieve the technical effect of enhancing sealing.

When the first sealing member 150 is provided with more than two, a greater number of the first sealing members 150 may be provided at the end of the first mounting chamber 131 remote from the inner chamber to prevent the fluid from leaking out of the external valve 100.

In some embodiments, the elastic sealing ring 160 and the second mounting cavities 132 may be a plurality of one-to-one, and the plurality of second mounting cavities 132 are spaced along the axial direction of the bearing 130.

The elastic sealing rings 160 and the second installation cavities 132 are arranged in a plurality of one-to-one correspondence, the plurality of elastic sealing rings 160 can respectively and independently move in the plurality of second installation cavities 132, and the pressure difference between the sealing cavities and the inner cavities is adjusted through the movement of the plurality of elastic sealing rings 160, so that the pressure adjustable range of the sealing cavities is larger, and meanwhile, the adjusting speed is faster.

As shown in fig. 5, in some embodiments, the bearing 130 may include a cover 135 and a flange 136 coupled to the cover 135, the flange 136 coupled to the valve body assembly 110.

The lid 135 of bearing 130 is installed in the mounting hole, lid 135 and mounting hole clearance fit, and turn-ups 136 extend along the circumference of bearing 130 and cover and close on valve body subassembly 110, and second installation cavity 132 corresponds to set up on lid 135, covers on valve body subassembly 110 through setting up turn-ups 136 and seals the mounting hole, prevents the fluid of inner chamber from outwards leaking.

As shown in fig. 2, in some embodiments, a second seal 170 is provided between the cover 135 and the valve body assembly 110, the second seal 170 being located between the valve body assembly 110 and the flange 136.

A second seal 170 is disposed between the cover 135 and the valve body assembly 110, the second seal 170 being disposed between the valve body assembly 110 and the flange 136 to prevent leakage of fluid along the flange 136.

In the present embodiment, a second sealing groove 137 is provided on a side of the flange 136 facing the valve body assembly 110, and a second seal 170 is provided in the second sealing groove 137. The second sealing groove 137 may be an annular sealing groove, and the second sealing member 170 is a second sealing ring, and two ends of the second sealing ring in the axial direction of the bearing 130 respectively abut against the groove bottom of the second sealing groove 137 and the valve body assembly 110.

The second sealing elements 170 and the second sealing grooves 137 may be a plurality of one-to-one, the plurality of second sealing grooves 137 are arranged at intervals along the radial direction of the bearing 130, the plurality of second sealing elements 170 are correspondingly arranged in the plurality of second sealing grooves 137, and the effect of reinforcing the sealing effect is achieved by arranging the plurality of second sealing elements 170.

It should be noted that, in the embodiment of the present utility model, the materials of the first sealing ring, the second sealing ring and the elastic sealing ring 160 are not limited herein, and generally, materials that can stretch elastically are selected, so that the installation is convenient, and the sealing effect is good.

In the embodiment of the present utility model, as shown in fig. 6 and 7, a sealing assembly is formed by the bearing 130 and the valve stem 140, and the valve body assembly 110 is covered with a cover to seal the inner cavity from the outside, thereby preventing leakage of fluid.

As shown in fig. 1 and 2, in some embodiments, the valve 100 may further include an actuator 180, the actuator 180 being in power coupling connection with the valve stem 140, the valve 100 being an electrically operated valve.

The actuator 180 is disposed on the valve body assembly 110, and the actuator 180 is in power coupling connection with one end of the valve rod 140 away from the valve core 120, and is used for driving the valve rod 140 to rotate along the axial direction of the valve rod 140, so as to drive the valve core 120 to rotate, thereby realizing on-off and conversion of a flow path.

In the present embodiment, the actuator 180 is an electric motor, and the valve 100 is an electric valve.

In another embodiment, the actuator 180 may be another driving device such as a hydraulic cylinder, and the valve 100 may be a hydraulic valve.

Embodiments of the present utility model also provide a thermal management system including a valve 100 as in any of the embodiments described above.

It should be noted that the valve 100 provided by the present utility model may be used as a four-way valve in a thermal management system, and the thermal management system may be applied to a refrigeration device, such as a commercial air conditioner, a household air conditioner, or a vehicle air conditioner.

According to the thermal management system provided by the embodiment of the utility model, the elastic sealing ring 160 is arranged in the valve 100, so that the elastic sealing ring 160 can elastically stretch and retract along with the pressure difference between the first mounting cavity 131 and the inner cavity, the pressure at two sides of the elastic sealing ring 160 is balanced, the fluid is prevented from penetrating into the first mounting cavity 131, and further the fluid is prevented from leaking along the axial direction of the valve rod 140, so that the fluid in the thermal management system is prevented from leaking at the valve 100.

Through the design of the valve 100, the flow direction, the flow rate and the on-off of the refrigerant in the refrigerating system are controlled, the flow direction of the refrigerant can be adjusted according to the heating or refrigerating requirement, the refrigerating cycle and the heating cycle of the whole system are ensured to effectively operate, and the reliability and the stability of the whole system are improved.

In some embodiments, the thermal management system further comprises a compressor.

The elastic sealing ring 160, the bearing 130, the valve rod 140 and at least two first sealing pieces 150 form a sealing cavity, and the sealing cavity and the compressor are internally provided with the same type of refrigerating machine oil.

The compressor can be used for compressing and conveying the refrigerant, in other words, the compressor can compress the low-temperature low-pressure gaseous refrigerant into the high-temperature high-pressure gaseous refrigerant, and convey the high-temperature high-pressure gaseous refrigerant into the circulating pipeline, and the four-way valve in the pipeline can adjust the flow direction of the refrigerant according to the refrigerating or heating requirement of a user.

It can be appreciated that the compressor can be filled with the refrigerating machine oil, and firstly, the refrigerating machine oil can reduce the friction and wear degree in the operation of the compressor, thereby prolonging the service life of the compressor; secondly, the refrigerating machine oil can ensure that the piston, the cylinder surface and the rotating bearing in the compressor can achieve a sealing effect so as to prevent refrigerant leakage. Finally, the refrigerating machine oil can take away heat generated in the working process of the compressor while lubricating all moving parts in the compressor, so that the moving parts keep a lower temperature, and the heat dissipation effect is achieved.

According to the thermal management system provided by the embodiment of the utility model, through the arrangement of the compressor and the design of the refrigerating machine oil, the abrasion of the compressor in operation can be reduced, so that the service life of the compressor is prolonged; the sealing device has good sealing effect on the compressor, and avoids the leakage of the refrigerant in the pipeline; meanwhile, the heat radiation performance of the compressor is improved, so that the efficiency and the reliability of the whole system are improved.

The embodiment of the utility model also provides a vehicle, which comprises the thermal management system in any embodiment.

In the present embodiment, the thermal management system in the vehicle is an air conditioning system on the vehicle, and the valve 100 is provided on a refrigerant line of the air conditioning system.

Through the arrangement of the thermal management system, the temperature adjustment of the cabin environment and the working environment of parts is realized in the working state of the vehicle, the vehicle is ensured to run at the most suitable temperature, and the safety performance of the vehicle is optimized; meanwhile, the control requirement of a driver on cabin temperature is met, and therefore the experience and the use sense of the vehicle are improved.

According to the vehicle provided by the embodiment of the utility model, the elastic sealing ring 160 is arranged in the valve 100 of the thermal management system, so that the elastic sealing ring 160 can elastically stretch and retract along with the pressure difference between the first mounting cavity 131 and the inner cavity, the pressure at two sides of the elastic sealing ring 160 is balanced, the fluid is prevented from permeating into the first mounting cavity 131, the fluid is further prevented from leaking along the axial direction of the valve rod 140, the fluid in the thermal management system is prevented from leaking at the valve 100, and the vehicle is protected.

The embodiment of the utility model also provides energy storage equipment, which comprises the thermal management system in any embodiment.

Through the arrangement of the thermal management system, temperature control under the operation of the energy storage equipment is realized, heat accumulation in the equipment or operation temperature difference is avoided to be too large, the occurrence rate of thermal runaway is reduced, the whole equipment is ensured to continuously and safely operate, the thermal protection capacity of the energy storage equipment is improved, and the service life of the energy storage equipment is prolonged.

It should be noted that the energy storage device may be a battery type energy storage device, including an energy storage battery and a thermal management system for dissipating heat of the energy storage battery, and the energy storage device may be a container type energy storage device or a household type energy storage device.

According to the energy storage device provided by the embodiment of the utility model, the elastic sealing ring 160 is arranged in the valve 100 of the thermal management system, so that the elastic sealing ring 160 can elastically stretch and retract along with the pressure difference between the first mounting cavity 131 and the inner cavity, the pressure at two sides of the elastic sealing ring 160 is balanced, the fluid is prevented from penetrating into the first mounting cavity 131, and the fluid is further prevented from leaking along the axial direction of the valve rod 140, so that the fluid in the thermal management system is prevented from leaking at the valve 100.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present utility model may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

In the description of the present utility model, it should be understood that the terms "length," "width," "thickness," "upper," "lower," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features.

In the description of the present utility model, "plurality" means two or more.

In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (14)

1. A valve, comprising:

a valve body assembly defining an interior cavity;

the valve core is arranged in the inner cavity;

the bearing is arranged on the valve body assembly and is provided with a first installation cavity and a second installation cavity surrounding the first installation cavity, and the second installation cavity is communicated with the first installation cavity and the inner cavity;

the valve rod penetrates through the first mounting cavity and is connected with the valve core, and the valve rod is in clearance fit with the first mounting cavity;

at least two first seals mounted between the valve stem and the bearing;

the elastic sealing ring is arranged in the second installation cavity, and is in sealing fit with the second installation cavity along the axial direction of the bearing, and can elastically stretch and retract along the radial direction of the bearing.

2. The valve according to claim 1, wherein the bearing is provided with a communication hole, a first end of which is connected to the second mounting chamber, and a second end of which is connected to the first mounting chamber.

3. The valve of claim 2, wherein the size of the communication aperture is smaller than the size of the second mounting cavity.

4. The valve according to claim 2, wherein the communication hole includes a plurality of spaced apart around a circumference of the first mounting chamber.

5. The valve of claim 1, wherein a seal cavity is formed between the elastic seal ring, the bearing, the valve stem and the at least two first seals, and seal oil is disposed in the seal cavity.

6. The valve of claim 1, wherein the peripheral wall of the first mounting cavity is provided with at least two first seal grooves, the at least two first seals being mounted to the first seal grooves in a one-to-one correspondence.

7. The valve of claim 1, wherein the elastic sealing ring and the second mounting cavity are in one-to-one correspondence, and the plurality of second mounting cavities are arranged at intervals along the axial direction of the bearing.

8. The valve of any one of claims 1-7, wherein the bearing comprises a cover and a flange coupled to the cover, the flange coupled to the valve body assembly.

9. The valve of claim 8, wherein a second seal is disposed between the cover and the valve body assembly, the second seal being located between the valve body assembly and the flange.

10. The valve according to any one of claims 1-7, further comprising:

and the actuator is in power coupling connection with the valve rod, and the valve is an electric valve.

11. A thermal management system, comprising:

a valve as claimed in any one of claims 1 to 10.

12. The thermal management system of claim 11, further comprising:

the compressor, elastic sealing ring, the bearing, the valve rod and form the sealed chamber between at least two first sealing members, sealed chamber with be equipped with the refrigerating machine oil of same type in the compressor.

13. A vehicle, characterized by comprising:

the thermal management system of claim 11 or 12.

14. An energy storage device, comprising:

the thermal management system of claim 11 or 12.