CN113147255B

CN113147255B - Refrigerating system applied to tire and automobile tire

Info

Publication number: CN113147255B
Application number: CN202110604472.8A
Authority: CN
Inventors: 徐婷; 杨江林
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-05-10
Anticipated expiration: 2041-05-31
Also published as: CN113147255A

Abstract

The application discloses be applied to refrigerating system of tire includes: a tread for contacting the road surface and tightening the tire; a hub located inside the tire; a shear band on a side of the tread facing the hub; an elastic support structure located between the hub and the shear band; the refrigerating system is positioned in the tire and comprises a compression cavity, a heat exchange cavity, a throttling pipeline, an exhaust pipeline, an evaporation area and a refrigerant circulating in the loop, wherein the compression cavity, the heat exchange cavity, the throttling pipeline, the exhaust pipeline, the evaporation area and the refrigerant are sequentially connected from the tire tread to the hub to form the loop; the compression cavity has a sealing function and consists of the elastic supporting structure, the shear band and the tire tread; the heat exchange cavity has a sealing function and consists of the elastic supporting structure, a hub and a sealing element; the exhaust duct is connected to the compression chamber and the heat exchange chamber. The tire is driven by kinetic energy when running, vaporization or liquefaction conversion of a refrigerant is influenced, the tire running at high speed is cooled and radiated, energy is saved, the environment is protected, and meanwhile, the durability and the safety of the tire are improved.

Description

Refrigerating system and automobile tire for tire

Technical Field

The application relates to the field of tires, in particular to a refrigerating system applied to a tire and an automobile tire.

Background

Tires are often used under complex and severe conditions, which are subjected to various deformations, loads, forces and high and low temperature effects during running, and therefore must have high load-bearing, traction and cushioning properties. At the same time, high abrasion resistance and flexibility resistance, and low rolling resistance and heat build-up are also required.

When the existing tire runs, the phenomenon that the heat dissipation performance is poor and the durability is poor is easy to occur due to too thick thicknesses of all parts. Even non-pneumatic tires (non-pneumatic tire) and airless tires (airless tire) which are newly produced nowadays have the defects of poor shock absorption, load bearing and heat dissipation effects by using an elastic filler or a support body to replace the design mode of the tire pressure action. In the prior art, in order to improve the heat radiation performance of the tire and reduce the number of layers of carcass ply yarns and the thickness of rubber materials on a tire surface and a tire side, the rigidity of the tire surface of the tire is insufficient due to the arrangement, when a vehicle runs, the tire cannot support a load, and the durability of the tire is easy to be unsatisfactory; therefore, how to ensure the rigidity of the tread and the sidewall and simultaneously improve the heat dissipation performance and the durability of the tire is a problem to be solved urgently in the industry.

Disclosure of Invention

The application aims to provide a refrigerating system applied to a tire and an automobile tire, in particular to a tire free from external energy input, and the tire cruising time and the tire safety are improved by cooling the tire.

To achieve the above object, the present application discloses a refrigeration system applied to a tire comprising a tread located at the outermost side of the tire for contact with the road surface; a hub located at the innermost side of the tyre for supporting the tyre and transmitting the power of the engine or the motor; a shear band on a side of the tread facing the hub, a resilient support structure between the hub and the shear band; the refrigerating system is positioned in the tire and comprises a compression cavity, an exhaust pipeline, a heat exchange cavity, a throttling pipeline and an evaporation area which are sequentially connected from the tire tread to the hub to form a loop, and a refrigerant circulating in the loop;

the compression chamber possesses sealed function, by elastic support structure and shear band, the tread constitutes jointly, the compression chamber main part is located elastic support structure is interior to set up sealed on the elastic support structure near the compression chamber, set up sealed mode and include: sealing rings, sealing gaskets, rubber sealing parts, vulcanization bonding and the like; the heat exchange cavity has a sealing function and consists of an elastic supporting structure, a hub and a sealing element, wherein a sealing element placing groove is formed in the hub and/or the elastic supporting structure.

Optionally, the evaporation area and the throttling conduit are located inside the elastic support structure, the throttling conduit is a conduit with a narrow cross section and a long flow channel, and is used for reducing the pressure and temperature of a refrigerant, and the evaporation area extends from the hub direction to the tread and is connected to the compression cavity and the throttling conduit.

Optionally, the compression cavity and the heat exchange cavity may be sealed by radial sealing, end face sealing or vulcanization bonding sealing.

Optionally, the sealing element is a sealing ring, a sealing gasket, a lip-shaped or concave-convex part.

Optionally, the material of the sealing element may be Hydrogenated Nitrile Butadiene Rubber (HNBR), Nitrile Butadiene Rubber (NBR), PEEK, PTFE, silicone rubber, 301 steel, spcc, or the like.

Alternatively, the tire refrigeration systems may be disposed on the tires singly or in multiple, and the tire refrigeration systems may or may not be in communication with each other.

Optionally, the refrigeration system applied to the tire further comprises a high-pressure relief protection structure, a vacuum pumping structure and a refrigerant injection structure.

Optionally, the compression chamber and the exhaust duct are connected by an exhaust port, and the compression chamber, the exhaust duct and the exhaust port comprise a coating comprising a thermally insulating material.

The application also discloses an automobile tire, including above-mentioned arbitrary one be applied to the refrigerating system of tire: comprises a tread which is positioned at the outermost side of the tire and is used for contacting with a road surface and transmitting the contact force between the road surface and the tire; the tire tread comprises a hub, a shear band and a plurality of elastic supporting structures, wherein the hub is positioned at the innermost side of the tire and used for loading the internal pressure of the tire, the hub and the elastic supporting structures form a heat exchange cavity together, the shear band is positioned at one side of the tire tread, which faces the hub, and the shear band and the elastic supporting structures form a compression cavity together; the elastic supporting structure is positioned between the tire tread and the hub and comprises a refrigerant circulation pipeline structure; the compression cavity is formed by the shear band and the elastic support structure, and the heat exchange cavity is close to the hub and is arranged between the hub and the elastic support structure; the evaporation area is positioned in the elastic supporting structure, is communicated with the hub through a throttling pipeline and is communicated with the compression cavity; the heat exchange cavity is sealed in a radial sealing mode; the hub is made of materials such as aluminum alloy, magnesium aluminum alloy and steel with strong heat conduction and heat dissipation performance; the automobile tire is a non-inflatable tire or an explosion-proof tire with the tire side wall having the air-free supporting capacity.

Optionally, the shear band is configured to have a compression function.

Optionally, the elastic support structure is provided with a plurality of partitions to divide a plurality of non-communicated intervals, so as to form a plurality of non-adjacent refrigerating systems which can respectively work and are applied to the tire

Optionally, the elastic support structure is made of a thermoplastic polyurethane elastomer (TPU), a cast polyurethane elastomer (CPU), Hydrogenated Nitrile Butadiene Rubber (HNBR), Nitrile Butadiene Rubber (NBR), or other high molecular elastic materials.

The refrigeration system applied to the tire is applied to the automobile tire, particularly to a non-pneumatic tire by utilizing the refrigeration principle of an air conditioner through a reasonable and simple structure; the heat of the elastic supporting structure is conveyed to the wheel hub through the vapor-liquid conversion of the refrigerant, so that the elastic supporting structure is physically cooled from the inside, and the whole process is driven by the kinetic energy of the tire, so that the energy is saved and the environment is protected; the thermal stability of the tire is improved, and the heat resistance and the heat dissipation capability of the whole non-pneumatic tire are improved.

Drawings

The accompanying drawings, which are included to provide an understanding of embodiments of the present application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view of a tire structure of a refrigeration system for a tire according to an embodiment of the present application;

FIG. 2 is a schematic view of a tire half-section of a refrigeration system for a tire according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a refrigeration system for a tire according to an embodiment of the present application;

FIG. 4 is an enlarged view of the portion A of FIG. 3;

FIG. 5 is a cross-sectional view of a tire of a refrigeration system as applied to the tire in accordance with an embodiment of the present application;

FIG. 6 is a schematic view of a spacer for a tire cooling system according to an embodiment of the present application;

wherein, 100, tire; 110. a tread; 120. a hub; 130. shearing the band; 140. an elastic support structure; 150. a spacer; 151. an interval; 160. a refrigerant; 200. a refrigeration system; 210. a compression chamber; 220. a compression structure; 230. a heat exchange cavity; 240. an exhaust duct; 241. an exhaust port; 250. a throttling conduit; 260. an evaporation zone; 270. a vacuum pumping structure; 280. refrigerant injection structure.

Detailed Description

Specific structural and functional details disclosed herein are merely representative and are provided for purposes of describing example embodiments of the present application. This application may, however, be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.

In the description of the present application, it is to be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

The application is further described with reference to the drawings and alternative embodiments.

As shown in fig. 1 to 6, the present application discloses a refrigeration system 200 applied to a tire, the tire 100 including: a tread 110 for contacting the road surface and tightening the tire; a hub 120 located inside the non-pneumatic tire; a shear band 130 on the side of the tread facing the hub; a resilient support structure 140 located between the hub 120 and the shear band 130; a refrigeration system 300 located between the tread 119 and the hub 120; the refrigeration system 200 comprises a compression cavity 210, an exhaust pipeline 240, a heat exchange cavity 230, a throttling pipeline 250 and an evaporation area 260 which are sequentially connected from the tire tread 110 to the hub 120 and form a loop, and a refrigerant 160 circulating in the loop; the compression chamber 210 is disposed adjacent to the tread 110 and is formed by the shear band 130, the resilient support structure 140, and the tread 110; the heat exchange cavity 230 is disposed near the hub 120, and is formed by the hub 120 and the elastic support structure 140; the discharge duct 240 is connected to the compression chamber 210 and the heat exchange chamber 230. The evaporation area 260 and the throttling pipe 250 are located inside the elastic support structure 140, and the throttling pipe 250 is a pipe with a narrow cross section and a long flow passage and is used for reducing the pressure and temperature of a refrigerant; the evaporation area 260 extends from the hub 120 toward the tread 110, and is connected to the compression chamber 210 and the throttle pipe 250.

The refrigerant 160 has a characteristic of being converted into a gas state or a liquid state along with the change of temperature or pressure; the cooling medium is arranged in the tire refrigerating system 200, and the cooling medium is cooled by air-to-liquid condensation or by liquid-to-air evaporation through the influence on the temperature and pressure of the cooling medium, so that the cooling and heat dissipation of the tire are realized. As shown in fig. 4, the solid dots are high-pressure high-temperature gaseous refrigerants, and the hollow dots are low-temperature low-pressure liquid refrigerants; when a vehicle runs, the tread 110 is in contact with the ground, the compression structure 220 and the compression cavity 210 deform, the volume is reduced, the pressure is increased, the refrigerant forms high-temperature gas, the high-temperature gas enters the exhaust pipeline 240 through the exhaust port 241 and reaches the heat exchange cavity 230, the heat exchange cavity 230 is internally close to the hub 120, and the hub 120 is made of metal materials with high heat dissipation coefficients, so that the temperature of the heat exchange cavity 230 is lower than that of the high-temperature gas entering from the compression cavity 210, and when the high-temperature gas is in the heat exchange cavity 230 in an environment with the temperature lower than that of the gas, the high-temperature gas exchanges heat with the hub 120 and is cooled to form liquid cooling liquid; when the liquid refrigerant (cooling liquid) 160 enters the evaporation area 260 through the throttling pipeline 250, the flow rate is increased rapidly, the pressure of the cooling liquid is reduced suddenly, the cooling liquid is evaporated into gas, and heat is absorbed; the evaporated part of the gas re-enters the compression chamber 210; completing the cycle of tire cooling system 200.

The coolant may be R134a, R1234yf, etc., and the elastic support structure 140 is made of plastic polyurethane elastomer rubber (TPU), cast polyurethane elastomer (CPU), Hydrogenated Nitrile Butadiene Rubber (HNBR), Nitrile Butadiene Rubber (NBR), etc.

In the embodiment, the refrigerant (refrigerant) R134a and R134a are preferably adopted, so that the refrigerant has very low toxicity, is incombustible in air, has the safety class of A1 and has good chemical stability; in the operating temperature and pressure range, the density p of R134a liquid refrigerant is 928-1052kg/m 3, the gas density is 87-155kg/m 3, the pressure of a compression cavity is generally between 1.5MPa and 2.8MPa under the conventional tire size and the common rotating speed, the centrifugal force of the liquid in unit volume is W2 p R which is more than 3MPa and is far greater than the operating pressure difference, so that the centrifugal motion can be realized, and the centrifugal force of the gas in unit volume is less than 0.6MPa, and the gas can move to a hub away from a tire tread.

Fig. 2-3 are schematic structural views of a refrigeration system 200 applied to a tire, as shown in fig. 2, a compression cavity 210 of the refrigeration system 200 is disposed adjacent to the elastic support structure 140 on one side of the tread 110 and forms a sealed cavity with the shear band 130, a heat exchange cavity 230 is formed by the elastic support structure 140 adjacent to one side of the hub 120 and the hub 120, and a vent pipe 240 communicates the compression cavity 210 with the heat exchange cavity 230 and the hub 120. Exhaust duct 240 and exhaust port 241 include the coating that contains the heat-insulating material, because the refrigerant is after the compression, the temperature of the high temperature high-pressure gas that produces in compression chamber 210 can be a little higher than wheel hub 120 and the temperature of elastic support structure 140, consequently be provided with the thermal insulation coating at exhaust duct 240, the temperature stability of protection wheel hub 120 and elastic support structure 140 can not be too high on the one hand and causes the damage, and on the other hand, the setting of thermal insulation coating can improve refrigeration efficiency, better cooling tire 100, guarantee its safety and durability that travel.

Further, the compression cavity 210 and the heat exchange cavity 230 have the function of sealing the refrigerant 160, the compression cavity sealing mode is shown as bonding vulcanization, and the tread, the shear band and the elastic support structure are bonded, vulcanized and sealed; the heat exchange cavity sealing mode shown in the application is that the hub 120 end and the elastic supporting structure 140 end are provided with sealing rings for radial sealing. The sealing modes of the compression chamber 210 and the heat exchange chamber 230 are not limited to this, and radial sealing, end face sealing, and adhesion vulcanization may be adopted, and the sealing member may be a sealing ring, a sealing gasket, a high polymer material part with a lip structure, or the like.

In addition, the refrigeration system 200 applied to the tire further includes a pressure relief structure, a vacuum pumping structure 270, and a refrigerant injection structure 280, and is used for ensuring that the refrigeration system 200 is a vacuum-sealed safe environment; as shown in fig. 3, the hub 120 is provided with a vacuum structure 270 for extracting air from the tire; and the cooling liquid injection structure is used for injecting cooling liquid after vacuum pumping is performed, so that the refrigeration system 200 is sealed after the vacuum pumping and the cooling liquid injection are completed, and the air extraction opening is further provided with a pressure release valve (not shown in the figure). Before the tire runs, the vacuum pumping structure 270 is used for pumping vacuum into the tire to form a vacuum environment in the tire; then, the cooling liquid is injected into the tire internal refrigerating system 200 through the cooling liquid inlet; and the wheel 100 can lead to the condensation temperature too high in the area of the too high ambient temperature traveles, and compression chamber 210 pressure is too big, is equipped with the relief valve on the extraction opening and guarantees that tire inner tube pressure keeps stable, improves the safety in utilization of tire.

As another embodiment of the present application, the present application further discloses an automobile tire 100 comprising: a tread 110 located at the outermost side of the tire for contacting the road surface and transmitting the contact force between the road surface and the tire; a hub 120 located at the innermost side of the tire for loading the internal pressure of the tire; the hub 120 and the elastic support structure 140 together form a heat exchange cavity 230; a shear band 130 on a side of the tread 110 facing the hub 120, together with a resilient support structure 140, forming a compression chamber 210; the elastic support structure 140 is located between the tread 110 and the hub 120, and includes a refrigerant circulation pipeline structure; the compression chamber 210 is formed by the shear band 130 and the elastic support structure 140, and the heat exchange chamber 230 is disposed between the hub 120 and the elastic support structure 140 near the hub 120; the shear band 130 is provided with a compression structure 220; the evaporation zone 260 is disposed in the elastic support structure 140, specifically, in the contact area between the elastic support structure 140 and the tread 110, and is communicated with the hub 120; the heat exchange cavity 230 is sealed in a radial sealing manner; the hub 120 is made of materials such as aluminum alloy, magnesium aluminum alloy and steel with heat conduction and heat dissipation performance; the automobile tire 100 is a non-inflatable tire or a run-flat tire with a tire sidewall having an air-free support capability.

Optionally, a plurality of spacers 150 are disposed between the elastic supporting structure 140 and the hub 120 to define a plurality of non-communicated regions 151, so as to form a plurality of refrigerating systems 200 which are not adjacent to each other and can respectively operate. As shown in fig. 5, a plurality of chamber zones 151 are arranged inside the tire, and 20 chambers are connected in series to form a set of refrigeration system 200; a plurality of spacers 150 may be disposed between the elastic support structure 140 near one side of the hub 120 and the hub 120, so as to divide the interior of the non-pneumatic tire into a plurality of mutually isolated and independent zones 151, each zone 151 may have an independent refrigeration system 200 therein, when the refrigeration system 200 in one zone 151 is damaged, such as a vacuum-tight environment, air leakage, etc., the refrigeration systems 200 in other zones 151 may continue to operate, further ensuring normal operation of the cooling and cooling functions of the tire during high-speed driving.

As shown in fig. 6, taking 4 partitions 150 as an example, each partition 150 is symmetrical to each other, an inscribed square is formed in the inner diameter of the tire, and 4 independent sections 151 with equal area are divided, and the refrigeration system 200 in each section 151 can be independently cooled, that is, 4 sets of refrigeration systems 200 which can be independently operated are divided in the tire. Compared with other dividing modes, the equal division can maintain the balance of the tire; of course, other division methods may be used, for example, a division area in which the area of the section 151 divided by the portion where the tread 110 is most heated is small, and a division area in which the air leakage is not easily generated is large.

The spacers 150 may be integrally formed with the flexible support structure 140 or may be an additional component. The elastic supporting structure is made of high molecular elastic materials such as thermoplastic polyurethane elastomer rubber (TPU), cast polyurethane elastomer (CPU), Hydrogenated Nitrile Butadiene Rubber (HNBR), Nitrile Butadiene Rubber (NBR) and the like. The distance between the compression cavity 210 and the evaporation area 260 and the tread is not less than 20mm, and the distance between the compression cavity and the evaporation area is more than 20mm, so that the structure is prevented from being damaged by sharp objects.

A refrigerating system 200 is arranged in the tire, and the refrigerating system 200 is provided with a compression cavity 210, a heat exchange cavity 230, a throttling pipeline 250 and an evaporation area 260; the cooling method of the automobile tire 100 is set according to the air-conditioning refrigeration cycle principle, the compression cavity 210 and the compression structure 220 are equivalent to a compressor of an air-conditioning refrigeration system 200, and the heat exchange cavity 230 is equivalent to a condenser in an air conditioner to cool high-temperature and high-pressure gas generated by the tire tread 110 into liquid (cooling liquid); the throttling pipe 250 is equivalent to a throttling valve of an air conditioner, because the diameter of the throttling pipe 250 is small, the flow speed of cooling liquid passes through the throttling pipe 250 with the diameter reduced, the flow speed is increased rapidly, the self-disturbance phenomenon occurs, partial liquid refrigerant is converted into gaseous refrigerant, the temperature and the pressure of the whole refrigerant are reduced, when the refrigerant with the temperature and the pressure reduced flows to the evaporation area 260, the refrigerant is equivalent to an evaporator of the air conditioner, the heat generated when the tire runs at high speed is further absorbed, and partial gas enters the compression cavity 210 again. This process coolant liquid carries elastic support structure 140 heat to wheel hub 120 on, the wheel hub is then through high-speed rotation, the heat gives off through the air to realize inside carrying out the physics cooling to elastic support structure 140, and whole process is realized through the motion of tire itself, through the contact compression refrigerant work with ground, the rotation through the tire produces centrifugal force drive liquid refrigerant and flows, its process does not need outside energy input, and is energy-concerving and environment-protective.

It should be noted that the limitations of the various shapes and numbers involved in the present embodiment are not to be considered as limitations on the implementation of the specific embodiment. The technical scheme of the application can be widely applied to annular elastic rubber products which are assembled on various vehicles or machines and roll in a grounding mode, wherein a compression cavity, an exhaust port, a heat exchange cavity and an evaporation area in a refrigeration system in an automobile tire can be integrally formed on an elastic supporting structure through pouring, injection molding or secondary injection molding, and the elastic supporting structure can be processed to form or be embedded with a forming structure made of other materials in the elastic supporting structure, wherein the other materials comprise metal materials or non-metal materials with good heat conductivity, such as copper, aluminum and the like; the exhaust port structure can be formed by injection molding, and other parts such as a check valve and the like can be embedded in the exhaust port structure; the compression cavity, the heat exchange cavity and a pipeline from the refrigerant compression cavity to the heat exchange cavity can be coated with heat insulation paint for isolating high-temperature refrigerants generated by compression; or a heat insulating layer formed by heat insulating materials is arranged on the exhaust pipeline and the exhaust port; the compression structure can be a device directly adhered to the shear band, and can also be produced by integral casting or injection molding with the shear band.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, numerous simple deductions or substitutions may be made without departing from the spirit of the invention, which shall be deemed to belong to the scope of the invention.

Claims

1. A refrigeration system for application to a tire, the tire comprising a tread located outermost of the tire for contact with a road surface; a hub located at the innermost side of the tyre for supporting the tyre and transmitting the power of the engine or the motor; a shear band on a side of the tread facing the hub, a resilient support structure between the hub and the shear band; the refrigerating system is positioned in the tire and comprises a compression cavity, an exhaust pipeline, a heat exchange cavity, a throttling pipeline and an evaporation area which are sequentially connected from the tire tread to the hub to form a loop, and a refrigerant circulating in the loop;

the compression cavity has a sealing function, the compression cavity is composed of the elastic support structure, the shear band and the tread, the compression cavity body is located in the elastic support structure, a seal is arranged on the elastic support structure near the compression cavity, and the sealing arrangement at least comprises: any one of a seal ring, a seal gasket, a rubber seal and vulcanization adhesion;

the heat exchange cavity has a sealing function and consists of an elastic supporting structure, a hub and a sealing element, wherein a sealing element placing groove is formed in the hub and/or the elastic supporting structure.

2. The refrigeration system as claimed in claim 1, wherein said evaporation zone and said throttling conduit are located inside said elastic support structure, said throttling conduit is a conduit with a narrow section and a long flow path for reducing the pressure and temperature of the refrigerant;

the evaporation area extends from the hub direction to the tread and is connected to the compression cavity and the throttling pipeline.

3. A refrigerating system for a tire as in claim 2 wherein said compression chamber and said heat exchange chamber are sealed by radial seals, face seals or vulcanised adhesive seals.

4. A refrigerating system for a tire as in claim 3 wherein said sealing member is a seal, a gasket, a lip-type member, or a concavo-convex type member.

5. A refrigerating system for a tyre as claimed in claim 4 wherein the material used for the seal includes any one of hydrogenated nitrile rubber, PEEK, PTFE, silicone rubber, 301 steel, spcc.

6. A refrigeration system for use with a tire as in claim 5, wherein said tire is provided with at least one of said refrigeration systems, and wherein said refrigeration systems are in communication with each other or not.

7. The refrigeration system as claimed in claim 1, further comprising a high pressure relief protection structure, a vacuum pumping structure, and a refrigerant injection structure.

8. A refrigeration system for a tire as in claim 1, wherein said compression chamber and said discharge conduit are connected by a discharge port, and wherein said compression chamber, said discharge conduit and said discharge port comprise a coating comprising a thermally insulating material.

9. A vehicle tyre, characterized in that it comprises a refrigeration system for tyres according to any one of claims 1-8 and further comprises:

the tread is positioned at the outermost side of the tire, is used for contacting with a road surface and transmitting the contact force between the road surface and the tire;

the wheel hub is positioned at the innermost side of the tire, is used for supporting the tire and transmitting the power of an engine or a motor, and forms a heat exchange cavity together with the elastic supporting structure;

the shear band is positioned on one side, facing the hub, of the tire tread and forms a compression cavity together with the elastic supporting structure;

the elastic supporting structure is positioned between the tire tread and the hub and comprises a refrigerant circulation pipeline structure and an evaporation area;

the compression chamber is formed by the shear band and the resilient support structure, the heat exchange chamber is located between the hub and the resilient support structure proximate to the hub; the evaporation area is positioned in the elastic supporting structure, is communicated with the hub through a throttling pipeline and is communicated with the compression cavity;

the heat exchange cavity is sealed in a radial sealing mode; the wheel hub is made of a metal material with strong heat conduction and heat dissipation performance, and the metal material at least comprises any one of aluminum alloy, magnesium aluminum alloy and steel;

the automobile tire is a non-inflatable tire or a run-flat tire.

10. A vehicle tyre according to claim 9, characterised in that the shear band is provided with a compression function.

11. The tyre for vehicle wheels according to claim 9, wherein said elastic supporting structure is provided with a plurality of partitions defining a plurality of zones not in communication with each other, so as to form a plurality of refrigeration systems for vehicle wheels, not adjacent to each other, capable of operating respectively.

12. The vehicle tire according to claim 9, wherein said elastic support structure is made of a polymeric elastic material, said polymeric elastic material comprising at least: any one of thermoplastic polyurethane elastomer rubber, cast polyurethane elastomer, hydrogenated nitrile rubber, and nitrile rubber.