CN218267826U - Floating joint, heat exchange system, battery and power consumption device - Google Patents

Abstract

The utility model relates to a float and connect, heat transfer system, battery and power consumption device, including body and elastomer, the elastomer includes first elasticity portion, second elasticity portion and the elasticity portion that floats, and first elasticity portion is located the body and is used for sealed the cup jointing first pipe fitting, and second elasticity portion is used for sealed the cup jointing second pipe fitting, and the elasticity portion that floats connects and communicates body and second elasticity portion. The floating joint can realize floating connection of the first pipe fitting and the second pipe fitting, is good in sealing effect, small in overall size, simple in structure and low in preparation cost.

Description

Floating joint, heat exchange system, battery and power consumption device

Technical Field

The application relates to the technical field of pipe joints, in particular to a floating joint, a heat exchange system, a battery and an electric device.

Background

Energy conservation and emission reduction are the key points of sustainable development of the automobile industry, and electric vehicles become important components of the sustainable development of the automobile industry due to the advantages of energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in its development.

The battery generally comprises a battery monomer, a heat exchange system and the like, wherein the heat exchange system is used for cooling the battery monomer. The existing heat exchange system generally comprises heat exchange plates, the heat exchange plates are arranged on a single battery, and water nozzles of the heat exchange plates are communicated with a heat exchange medium supply source through heat exchange tubes. The joint of the water nozzle and the heat exchange tube is easy to leak due to the displacement of the water nozzle and the heat exchange tube, and has important influence on the safety problem of the battery.

SUMMERY OF THE UTILITY MODEL

In view of above-mentioned problem, this application provides a floating joint, heat transfer system, battery and power consumption device, aims at solving because of the relative displacement of water injection well choke and heat exchange tube influences the technical problem of battery safety.

In a first aspect, the present application provides a floating joint for connecting a first pipe fitting and a second pipe fitting, the floating joint includes a pipe body and an elastic body, the elastic body includes a first elastic portion, a second elastic portion and a floating elastic portion, the first elastic portion is disposed on the pipe body and used for sealing and sleeving the first pipe fitting, the second elastic portion is used for sealing and sleeving the second pipe fitting, and the floating elastic portion is connected and communicated with the pipe body and the second elastic portion in a floating manner.

In the technical scheme of this application embodiment, have the relative displacement trend when first pipe fitting and second pipe fitting, the elastic component that floats all can allow both to take place relative displacement, can not appear making first elastic component and first pipe fitting break away from or second elastic component and second pipe fitting break away from because of first pipe fitting and second pipe fitting dislocation on certain direction, can reduce the weeping risk that sealed badly leads to. Simultaneously, first elastic component and second elastic component all have elasticity, and this application can play sealed effect when sealed with first pipe fitting and second pipe fitting, can save the seal structure of extra setting. In addition, need not to set up butt joint panel etc. and can directly use first elasticity portion and second elasticity portion respectively with first pipe fitting and second pipe fitting intercommunication, can reach and shorten the size of floating joint in the direction of cup jointing.

In some embodiments, the second elastic portion is sealingly sleeved on the second pipe in the setting direction, and the floating joint is provided with a floating space allowing the floating elastic portion to float in the setting direction and a direction perpendicular to the setting direction. At this time, the floating elastic part can float the connecting pipe body and the second elastic part in the set direction and in the direction perpendicular to the set direction, and when the first pipe fitting and the second pipe fitting are relatively displaced in the direction perpendicular to the set direction, the floating elastic part floats in the direction perpendicular to the set direction, so that the separation of the connection part of the first elastic part and the first pipe fitting or the separation of the connection part of the second elastic part and the second pipe fitting cannot be caused.

In some embodiments, the floating elastic part is at least partially located outside the tube, and the floating space is formed by a space defined by the floating elastic part located outside the tube, the second elastic part and the tube. At this time, by arranging the part of the floating elastic part outside the pipe body, the deformation of the floating elastic part in the set direction and any direction perpendicular to the set direction can be realized by the part, so that the relative displacement of the first pipe fitting and the second pipe fitting in each direction can be supported, and the structure of the floating joint is very simple.

In some embodiments, the first resilient portion, the second resilient portion, and the floating resilient portion are integrally formed. When the elastic body is formed by the first elastic part, the second elastic part and the floating elastic part in an integrated mode, when the elastic body is installed, the elastic body is installed in place, the first elastic part and the floating elastic part do not need to be installed independently, and the floating joint is assembled more quickly and conveniently.

In some embodiments, the floating joint further comprises a reinforcement body disposed at the second elastic portion. At this time, the reinforcement body can reinforce the structural strength of the second elastic part, improve the connection strength between the second elastic part and the second pipe, and contribute to preventing the second elastic part from coming off the second pipe.

In some embodiments, the floating joint further includes a limiting body, the limiting body is used for connecting the second pipe fitting, the limiting body has a limiting portion, and when the second pipe fitting is in sealing sleeve connection with the second elastic portion, the limiting portion blocks the direction in which the second elastic portion breaks away from the second pipe fitting. At this time, the limiting body can prevent the second elastic body from separating from the second pipe fitting under special conditions (such as a blasting state) to cause the leakage of the fluid medium.

In some embodiments, the position-limiting part surrounds the floating elastic part and is limited between the tube body and the second elastic part. At the moment, the annular limiting part is convenient to be not connected with the second pipe fitting in the second elastic part, and the limiting body is hung on the elastic body through the limiting part and is not easy to lose. At this moment, certain extrusion force is applied to the second elastic part through the limiting part, so that the second elastic part and the second pipe fitting are combined more tightly.

In some embodiments, when the limiting body is connected with the second pipe fitting, the limiting part is abutted against the second elastic part. And (5) effect.

In some embodiments, the limiting body further has a surrounding portion, the surrounding portion surrounds the periphery of the second elastic portion and forms a space for installing the second pipe fitting with the second elastic portion, the surrounding portion is connected with the second pipe fitting, and the limiting portion and the surrounding portion are arranged in an intersecting manner. After connecting second elastic component and second pipe fitting, the second pipe fitting is held tightly to the surrounding portion, can make second pipe fitting and second elastic component be connected more closely.

In some embodiments, the surrounding portion is configured with a guide groove and a clamping portion, the guide groove is arranged along the sleeving direction of the second elastic portion, and the clamping portion is clamped with the second pipe fitting when the guide groove is assembled with the second pipe fitting. At this time, quick installation of the second pipe fitting and the surrounding portion can be achieved.

In some embodiments, the surface of the second elastic part for sealing and sleeving with the second pipe is provided with a convex part. The convex part can increase the area of contact of second elastic part and second pipe fitting, improves the connection reliability of second pipe fitting and second elastic part, helps placing both and breaks away from. Simultaneously, the convex part can also improve the magnitude of interference of second elasticity portion and second pipe fitting, improves sealed effect between them.

In some embodiments, the first elastic portion is sleeved inside the tube body. At the moment, the floating joint is simple in structure and low in manufacturing cost.

In a second aspect, the present application provides a heat exchange system comprising a heat exchange plate, a heat exchange medium supply, a first tube, a second tube and the floating joint described above. One of the first pipe fitting and the second pipe fitting is connected with the heat exchange plate, and the other pipe fitting is communicated with a heat exchange medium supply source.

In a third aspect, the present application provides a battery, which includes a battery cell and the above heat exchange system, wherein the heat exchange plate is used for exchanging heat with the battery cell.

In a fourth aspect, the present application provides an electric device, which includes the battery in the above embodiments, and the battery is used for providing electric energy.

The foregoing description is only an overview of the technical solutions of the present application, and the present application can be implemented according to the content of the description in order to make the technical means of the present application more clearly understood, and the following detailed description of the present application is given in order to make the above and other objects, features, and advantages of the present application more clearly understandable.

Drawings

Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

FIG. 1 is a schematic illustration of a vehicle according to some embodiments of the present application;

FIG. 2 is an exploded schematic view of a battery in some embodiments of the present application;

fig. 3 is an exploded view of a battery cell in some embodiments of the present application;

FIG. 4 is a schematic view of the assembly of the floating joint with first and second tubular members in some embodiments of the present application;

FIG. 5 isbase:Sub>A cross-sectional view taken at A-A of FIG. 4;

FIG. 6 is an exploded view of the structure shown in FIG. 4;

FIG. 7 is a schematic diagram of a heat exchange system in accordance with certain embodiments of the present disclosure;

fig. 8 is an enlarged view at I in fig. 7.

The reference numerals in the detailed description are as follows:

1000. a vehicle; 100. a battery; 200. a controller; 300. a motor; 10. a box body; 11. a first portion; 12. a second portion; 20. a battery cell; 21. an end cap; 21a, electrode terminals; 22. a housing; 23. an electrical core assembly; 30. a heat exchange system; 31. a heat exchange plate; 32. a first pipe member; 33. a second pipe member; 34. a floating joint; 34a, a tube body; 34b, an elastomer; b1, a first elastic part; b2, a second elastic part; b3, a floating elastic part; m, a convex part; 34c, a reinforcement; 34d, a limiting body; d1, a limiting part; d2, an enclosing part; f. a guide groove; g. a clamping part; x, setting the direction; y, thickness direction; K. a floating space.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are merely used to more clearly illustrate the technical solutions of the present application, and therefore are only examples, and the protection scope of the present application is not limited thereby.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof in the description and claims of this application and the description of the figures above, are intended to cover non-exclusive inclusions.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or to implicitly indicate the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is only one kind of association relationship describing an associated object, and means that three relationships may exist, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two), and "plural pieces" refers to two or more (including two).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. Specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

The battery is not only widely applied to energy storage power supply systems of hydraulic power, fire power, wind power, solar power stations and the like, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like, and a plurality of fields such as military equipment, aerospace and the like. The battery is usually provided with a heat exchange plate for cooling the battery cells therein, and the heat exchange plate is communicated with a heat exchange medium supply source through a heat exchange pipe.

The applicant has noticed that, in the related art, in order to improve the sealing effect between the water nozzle of the heat exchange plate and the heat exchange tube, a floating joint formed by the joint panel and the communication tube is generally elastically connected by a spring, a sealing member is arranged at the joint of the joint panel and the water nozzle and the heat exchange tube, and the joint panel enables the water nozzle and the heat exchange tube to tightly abut against each other in the abutting direction through the elastic force provided by the spring so as to strengthen the sealing.

The structure needs to use the joint panel to butt joint the water nozzle or the heat exchange tube, so that the size of the floating joint is large. Moreover, the joint panel can only move along the extension direction of the spring compared with the communicating pipe, so that the water nozzle and the heat exchange pipe can only be allowed to displace in the extension direction of the spring, the fault tolerance rate of the displacement in other directions intersecting with the extension direction of the spring is reduced, the joint panel is easily separated from the water nozzle and/or the heat exchange pipe, and liquid leakage is caused.

Based on the above consideration, in order to solve the technical problem that the leakage of the water nozzle and the heat exchange tube in the battery affects the safety of the battery, through deep research, the applicant designs a floating joint for connecting a first pipe fitting and a second pipe fitting, the floating joint comprises a pipe body and an elastic body, the elastic body comprises a first elastic part, a second elastic part and a floating elastic part, the first elastic part is arranged on the pipe body and used for hermetically sleeving the first pipe fitting and the pipe body, the second elastic part is used for hermetically sleeving the second pipe fitting, and the floating elastic part is in floating connection and communicated with the pipe fitting and the second elastic part. At this moment, through the first elasticity portion and the direct sealed first pipe fitting and the second pipe fitting that cup joints of second elasticity portion that the floating joint passes through the elastomer, need not additionally to set up components such as joint panel, simple structure. And under the effect of the elastic part that floats, can allow to take place the displacement between water injection well choke and the heat exchange tube and can not influence first elastic part and second elastic part respectively in the sealed of first pipe fitting and second pipe fitting, the sealed effect of first pipe fitting and second pipe fitting, the leak protection liquid of joint that floats is effectual.

The floating joint disclosed in the embodiment of the application can be applied to heat exchange plates and heat exchange tubes connected with the batteries, and can also be applied to other pipelines needing to be connected, and the specific application scene is only exemplified in the application and is not limited to the application.

The first pipe fitting and the second pipe fitting referred to in the embodiments of the present application may be (but are not limited to) a water nozzle and a heat exchange pipe of the heat exchange plate referred to in the embodiments of the present application, respectively. When the floating joint is applied to different scenes, the first pipe fitting and the second pipe fitting are different correspondingly.

The heat exchange plate referred to in the embodiments of the present application refers to a plate-shaped, block-shaped, tubular or other member capable of flowing a heat exchange medium to cool/heat the outside, and may be a cooling plate, a heating plate or the like. The heat exchange medium of the heat exchange plate can be a heating medium or a cooling medium, and particularly, the heat exchange medium can be in a gas state and/or a liquid state.

The heat transfer system that mentions in this application embodiment not only can be used for carrying out the heat transfer with battery monomer, can also carry out the heat transfer with other devices that need cool down or heat.

The embodiment of the application provides an electric device using a battery as a power supply, wherein the electric device can be but is not limited to a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric automobile, a ship, a spacecraft and the like. The electric toy may include a stationary or mobile electric toy, such as a game machine, an electric car toy, an electric ship toy, an electric airplane toy, and the like, and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, and the like.

For convenience of description, the following embodiments take an example in which a power consuming apparatus according to an embodiment of the present application is a vehicle 1000.

Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle 1000 according to some embodiments of the present disclosure. The vehicle 1000 may be a fuel automobile, a gas automobile, or a new energy automobile, and the new energy automobile may be a pure electric automobile, a hybrid electric automobile, or an extended range automobile, etc. The battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom or the head or the tail of the vehicle 1000. The battery 100 may be used for power supply of the vehicle 1000, for example, the battery 100 may serve as an operation power source of the vehicle 1000. The vehicle 1000 may further include a controller 200 and a motor 300, the controller 200 being configured to control the battery 100 to supply power to the motor 300, for example, for starting, navigation, and operational power requirements while the vehicle 1000 is traveling.

In some embodiments of the present application, the battery 100 may be used not only as an operating power source of the vehicle 1000, but also as a driving power source of the vehicle 1000, instead of or in part of fuel or natural gas, to provide driving power for the vehicle 1000.

Referring to fig. 2, fig. 2 is an exploded view of a battery 100 according to some embodiments of the present disclosure. The battery 100 includes a case 10 and a battery cell 20, and the battery cell 20 is accommodated in the case 10. The case 10 is used to provide a receiving space for the battery cells 20, and the case 10 may have various structures. In some embodiments, the case 10 may include a first portion 11 and a second portion 12, the first portion 11 and the second portion 12 cover each other, and the first portion 11 and the second portion 12 together define a receiving space for receiving the battery cell 20. The second part 12 may be a hollow structure with an open end, the first part 11 may be a plate-shaped structure, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 jointly define a containing space; the first portion 11 and the second portion 12 may be both hollow structures with one side open, and the open side of the first portion 11 may cover the open side of the second portion 12. Of course, the box 10 formed by the first and second portions 11 and 12 may have various shapes, such as a cylinder, a rectangular parallelepiped, and the like.

In the battery 100, the number of the battery cells 20 may be multiple, and the multiple battery cells 20 may be connected in series or in parallel or in series-parallel, where in series-parallel refers to both series connection and parallel connection among the multiple battery cells 20. The plurality of battery cells 20 can be directly connected in series or in parallel or in series-parallel, and the whole formed by the plurality of battery cells 20 is accommodated in the box body 10; of course, the battery 100 may also be formed by connecting a plurality of battery cells 20 in series, in parallel, or in series-parallel to form a battery module, and then connecting a plurality of battery modules in series, in parallel, or in series-parallel to form a whole, and the whole is accommodated in the box 10. The battery 100 may further include other structures, for example, the battery 100 may further include a bus member for achieving electrical connection between the plurality of battery cells 20.

Wherein each battery cell 20 may be a secondary battery or a primary battery; but is not limited to, a lithium sulfur battery, a sodium ion battery, or a magnesium ion battery. The battery cell 20 may be cylindrical, flat, rectangular parallelepiped, or other shapes.

Referring to fig. 3, fig. 3 is an exploded schematic view of a battery cell 20 according to some embodiments of the present disclosure. The battery cell 20 refers to the smallest unit constituting the battery. Referring to fig. 3, the battery cell 20 includes an end cap 21, a housing 22, a battery cell assembly 23, and other functional components.

The end cap 21 refers to a member that covers an opening of the case 22 to isolate the internal environment of the battery cell 20 from the external environment. Without limitation, the shape of the end cap 21 may be adapted to the shape of the housing 22 to fit the housing 22. Alternatively, the end cap 21 may be made of a material (e.g., an aluminum alloy) having certain hardness and strength, so that the end cap 21 is not easily deformed when being extruded and collided, and the single battery 20 may have higher structural strength and improved safety performance. The end cap 21 may be provided with functional components such as the electrode terminals 21 a. The electrode terminals 21a may be used to be electrically connected with the electric core assembly 23 for outputting or inputting electric power of the battery cells 20. In some embodiments, the end cap 21 may further include a pressure relief mechanism for relieving the internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold value. The material of the end cap 21 may also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not limited in this embodiment. In some embodiments, insulation may also be provided on the inside of the end cap 21, which may be used to isolate the electrical connection components within the housing 22 from the end cap 21 to reduce the risk of short circuits. Illustratively, the insulator may be plastic, rubber, or the like.

The housing 22 is an assembly for mating with the end cap 21 to form an internal environment of the battery cell 20, wherein the formed internal environment may be used to house the cell assembly 23, electrolyte, and other components. The housing 22 and the end cap 21 may be separate components, and an opening may be formed in the housing 22, and the opening may be covered by the end cap 21 to form the internal environment of the battery cell 20. The end cap 21 and the housing 22 may be integrated, and specifically, the end cap 21 and the housing 22 may form a common connecting surface before other components are inserted into the housing, and when it is required to seal the inside of the housing 22, the end cap 21 covers the housing 22. The housing 22 may be a variety of shapes and sizes, such as rectangular parallelepiped, cylindrical, hexagonal prism, etc. Specifically, the shape of the housing 22 may be determined according to the specific shape and size of the electric core assembly 23. The material of the housing 22 may be various materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., which is not limited in the embodiments of the present invention.

The cell assembly 23 is a component in the battery cell 20 where electrochemical reactions occur. One or more electrical core assemblies 23 may be contained within the housing 22. The core assembly 23 is mainly formed by winding or stacking a positive electrode sheet and a negative electrode sheet, and a separator is generally provided between the positive electrode sheet and the negative electrode sheet. The parts of the positive plate and the negative plate with the active materials form the main body part of the electric core assembly, and the parts of the positive plate and the negative plate without the active materials form the tabs respectively. The positive electrode tab and the negative electrode tab may be located at one end of the main body portion together or at both ends of the main body portion, respectively. During the charging and discharging process of the battery, the positive active material and the negative active material react with the electrolyte, and the tabs are connected with the electrode terminals to form a current loop.

According to some embodiments of the present disclosure, referring to fig. 4 and 5, a floating joint 34 provided in the embodiments of the present disclosure is used for connecting a first pipe 32 and a second pipe 33, the floating joint 34 includes a pipe 34a and an elastic body 34b, the elastic body 34b includes a first elastic portion b1, a second elastic portion b2, and a floating elastic portion b3, the first elastic portion b1 is disposed on the pipe 34a and is used for sealing and sleeving the first pipe 32, the second elastic portion b2 is used for sealing and sleeving the second pipe 33, and the floating elastic portion b3 is in floating connection and communicates with the pipe 34a and the second elastic portion b2.

The first pipe 32 is a pipe through which a fluid medium can flow, and may be in the form of a straight pipe, a bent pipe, or the like, and may be a hard pipe or a soft pipe, and is not limited in particular. The second pipe 33 is a pipe capable of flowing a fluid medium, and may be a straight pipe, a bent pipe, or the like, and may be a hard pipe or a soft pipe, and is not limited in particular. The floating joint 34 is used to connect the first pipe member 32 and the second pipe member 33 and to communicate the first pipe member 32 and the second pipe member 33 so that a flowing medium can flow between the first pipe member 32 and the second pipe member 33.

The pipe body 34a is a tubular structure for supporting the elastic body 34b and flowing the flowing medium, and the pipe body 34a may be a straight pipe, a bent pipe, or the like, which is not limited herein. The tube body 34a may be a metal tube, a plastic tube, or the like. The tube body 34a may be a circular tube, a square circle, a special-shaped tube, or the like.

The elastic body 34b is a polymer material member which deforms significantly under weak stress and can be quickly restored to a state close to the original state and size after the stress is relaxed. The elastomer 34b may be selected from styrene-butadiene rubber, isoprene rubber, ethylene-propylene rubber, butyl rubber, chloroprene rubber, nitrile rubber, polyurethane elastomer 34b, polyamide elastomer 34b, polyolefin elastomer 34b, and the like.

The first elastic portion b1, the second elastic portion b2, and the floating elastic portion b3 are each a part of the elastic body 34b, and all have the characteristics of the elastic body 34 b. The first elastic portion b1 sealingly connects and communicates the first pipe 32 and the pipe body 34a, and the first elastic portion b1 may have a cylindrical or annular shape. The second elastic portion b2 is sealingly connected to the second pipe member 33, and the second elastic portion b2 is connected to and communicates with the pipe body 34a through the floating elastic portion b 3. The first elastic portion b1 may have a cylindrical or annular shape. The second elastic portion b2 may have a cylindrical structure. On the flow path of the flowing medium, the first pipe 32, the first elastic portion b1, the pipe body 34a, the floating elastic portion b3, the second elastic portion b2, and the second pipe 33 are arranged in this order.

The first elastic part b1 and the first pipe fitting 32 can be in sealing sleeve joint through interference connection, bonding, tightening connection and the like, and the first elastic part b1 can be in sleeve joint outside the first pipe fitting 32 and can also be in sleeve joint inside the first pipe fitting 32. The first elastic portion b1 may be disposed in the tube 34a, or partially disposed in the tube 34a and sleeved with the first pipe 32 via a portion extending out of the tube 34a, or the portion extending out of the tube 34a may have a floating section and a connection section, the connection section is adjusted with the first pipe 32, and the floating section (having the same function as the floating elastic portion b 3) is connected in a floating manner and communicates with the connection section and the tube 34a.

The second elastic part b2 and the second pipe fitting 33 can be in sealing sleeve joint through interference connection, bonding, tightening connection and the like, and the second elastic part b2 can be in sleeve joint outside the second pipe fitting 33 and can also be in sleeve joint inside the second pipe fitting 33.

The floating elastic part b3 and the tube body 34a can be in sealing sleeve joint through interference connection, bonding, tightening connection and the like, and the floating elastic part b3 can be in sleeve joint outside the tube body 34a or in the tube body 34a. The floating elastic part b3 and the second elastic part b2 may be bonded, integrally connected, thermally fused, clamped, etc., as long as there is no leakage between them.

Floating elastic part b3 floats and connects body 34a and second elastic part b2, including floating elastic part b3 and floating connection second elastic part b2 and body 34a on the direction of cup jointing of second elastic part b2, can also include floating elastic part b3 and floating connection second elastic part b2 and body 34a in the direction perpendicular with the direction of cup jointing of second elastic part b2.

In the case where the second elastic portion b2 is fitted to the second pipe member 33, when the first pipe member 32 and the second pipe member 33 have a tendency of relative displacement (defined as longitudinal relative displacement) in the fitting direction of the second elastic portion b2, the floating elastic portion b3 is pressed/pulled in the fitting direction (i.e., longitudinal direction) and allows the first pipe member 32 and the second pipe member 33 to undergo longitudinal relative displacement. When the first tube 32 and the second tube 33 have a tendency of relative displacement in a direction (defined as a lateral direction) perpendicular to the fitting direction, the floating elastic portion b3 is pressed/pulled in the lateral direction and allows the first tube 32 and the second tube 33 to undergo lateral relative displacement.

Above-mentioned floating joint 34, when first pipe fitting 32 and second pipe fitting 33 have the relative displacement trend, the relative displacement can take place for both to unsteady elastic component b3, can not appear making first elastic component b1 break away from with first pipe fitting 32 or second elastic component b2 break away from with second pipe fitting 33 because of first pipe fitting 32 and second pipe fitting 33 misplace in a certain direction, can reduce the weeping risk that the sealed poor results in. Meanwhile, the first elastic part b1 and the second elastic part b2 both have elasticity, so that a sealing effect can be achieved when the sealing structure is sealed by the first pipe fitting 32 and the second pipe fitting 33, and an additionally arranged sealing structure can be omitted. In addition, the first elastic portion b1 and the second elastic portion b2 can be directly used to communicate with the first pipe 32 and the second pipe 33, respectively, without providing a butt joint panel or the like, and the size of the floating joint 34 in the socket direction can be shortened.

In some embodiments, referring to fig. 5, the second elastic portion b2 is sealingly sleeved on the second pipe 33 in the setting direction X, and the floating joint 34 is configured with a floating space K allowing the floating elastic portion b3 to float in the setting direction X and a direction perpendicular to the setting direction X.

In the embodiment of the present application, for convenience of description, the fitting direction of the second elastic portion b2 and the second pipe 33 is referred to as a setting direction X. Understandably, in the setting direction X, the second elastic portion b2 and the tube body 34a have a space for accommodating the floating elastic portion b3, and when the first tube 32 and the second tube 33 have a relative displacement tendency in the setting direction X, the floating elastic portion b3 can be extended and contracted in the setting direction X.

The floating space K is a space between the second elastic portion b2 and the tube body 34a in the set direction X, the floating elastic portion b3 is located in the floating space K, and the floating elastic portion b3 is not connected to other components in a direction perpendicular to the set direction X (a thickness direction Y of the battery cell 20 as mentioned below), and may be further not limited by other components. Of course, the direction perpendicular to the set direction X in the present application is not limited to the thickness direction Y, and may be any one or more directions within a plane perpendicular to the set direction X.

At this time, the floating elastic portion b3 may float the connecting pipe body 34a and the second elastic portion b2 in a direction perpendicular to the setting direction X, and when the first pipe 32 and the second pipe 33 are relatively displaced in the direction perpendicular to the setting direction X, the floating elastic portion b3 floats in the direction perpendicular to the setting direction X, so that the connection of the first elastic portion b1 and the first pipe 32 or the connection of the second elastic portion b2 and the second pipe 33 is not released.

Of course, in other embodiments, the floating elastic portion b3 may float only in the setting direction X.

In some embodiments, referring to fig. 5, the floating elastic portion b3 is at least partially located outside the tube 34a, and the floating space K is formed by a space defined by the floating elastic portion b3 located outside the tube 34a, the second elastic portion b2 and the tube 34a.

The floating elastic portion b3 is located at a portion other than the pipe body 34a, and is deformable in a direction perpendicular to the setting direction X without being restricted by other structures. Specifically, the portion of the floating elastic portion b3 located outside the tube 34a, the surface of the second elastic portion b2 facing the tube 34a, and the surface of the tube 34a facing the second elastic portion b2 collectively form a floating space K.

The floating elastic portion b3 is located at a portion other than the pipe body 34a, and can freely float in the setting direction X.

In this case, by providing the floating elastic portion b3 outside the pipe body 34a, the floating elastic portion b3 can be deformed in the setting direction X and in any direction perpendicular to the setting direction X, and the floating joint 34 can be configured to be very simple while supporting the relative displacement between the first pipe 32 and the second pipe 33 in each direction.

The formation of the floating space K is not limited to the above. In other embodiments, the floating elastic part b3 may be entirely disposed in the tube 34a, but there is a portion of the floating elastic part b3 connected to the second elastic part b2 that is not connected to the tube wall of the tube 34a, that is, a floating space K is disposed between the portion of the floating elastic part b3 and the tube wall of the tube 34a.

In some embodiments, the first elastic part b1, the second elastic part b2, and the floating elastic part b3 are integrally molded. Specifically, the three components can be integrally machined and formed and integrally injection-molded.

When the elastic body 34b is integrally formed by the first elastic part b1, the second elastic part b2 and the floating elastic part b3, the elastic body 34b is only required to be mounted in place when the elastic body 34b is mounted, and the first elastic part b1 and the floating elastic part b3 do not need to be separately mounted, so that the assembly of the floating joint 34 is more rapid and convenient.

Of course, in other embodiments, the first elastic portion b1, the second elastic portion b2, and the floating elastic portion b3 may be provided separately, or the floating elastic portion b3 may be provided integrally with the second elastic portion b2 and the first elastic portion b1 may be provided separately. In addition, when the first elastic portion b1, the second elastic portion b2, and the floating elastic portion b3 are provided separately, they may be formed of the same material or different materials, that is, the elastic moduli of the three may be the same or different.

In some embodiments, referring to fig. 5, the floating joint 34 further includes a reinforcing body 34c, and the reinforcing body 34c is disposed on the second elastic portion b2.

The reinforcement body 34c is configured to reinforce the local strength of the second elastic portion b2. The hardness of the reinforcing body 34c is greater than that of the second elastic portion b2, or the elastic modulus of the reinforcing body 34c is greater than that of the second elastic portion b2. The reinforcement 34c may be a metal reinforcement 34c, a plastic reinforcement 34c, or a ceramic reinforcement 34c, and the reinforcement 34c may be in the form of a block, a strip, a ring, or the like.

In the second elastic part b2, a plurality of reinforcement bodies 34c may be arranged around the central axis of the second elastic part b2. In the second elastic portion b2, an annular reinforcing body 34c may also be arranged around the central axis of the second elastic portion b2.

The reinforcement 34c is provided in the second elastic portion b2 in such a manner that the reinforcement 34c is surrounded by the second elastic portion b2 at all the periphery thereof, and the reinforcement 34c can be inserted into the second elastic portion b2.

Alternatively, the reinforcement body 34c may be partially surrounded by the second elastic portion b2, and the reinforcement body 34c may be partially embedded in the second elastic portion b2 or may not be embedded in the second elastic portion b2. In the latter case, the reinforcement body 34c may be provided on a surface of the second elastic portion b2 facing the second pipe 33 (when the second elastic portion b2 is fitted in the second pipe 33, the surface is an outer surface of the second elastic portion b 2), or may be provided on a surface facing away from the second pipe 33 (when the second elastic portion b2 is fitted in the second pipe 33, the surface is an inner surface of the second elastic portion b2 in which a flow passage through which a fluid medium flows is formed).

In this case, the reinforcement body 34c can reinforce the structural strength of the second elastic portion b2, increase the connection strength between the second elastic portion b2 and the second pipe 33, and contribute to preventing the second elastic portion b2 from coming off the second pipe 33.

In some embodiments, referring to fig. 5, the floating joint 34 further includes a limiting body 34d, the limiting body 34d is used for connecting the second pipe 33, the limiting body 34d has a limiting portion d1, and when the second pipe 33 is hermetically sleeved with the second elastic portion b2, the limiting portion d1 blocks the second elastic portion b2 in a direction separating from the second pipe 33.

The stopper 34d is a member capable of restricting the second elastic portion b2 from coming off the second pipe 33, and is not particularly limited. The limiting body 34d is connected to the second pipe 33, and may be in a threaded connection or a snap connection, and is not limited specifically. The limiting part d1 can be a limiting sheet, a limiting ring, a limiting block, a limiting plate and the like, and is not limited specifically.

The position-limiting portion d1 blocks the second elastic portion b2 from the second tube 33, which can be in the direction of the tube 34a in the set direction X. The stopper d1 may or may not contact the second elastic portion b2 in the normal use state, as long as the second elastic portion b2 can be prevented from coming out of the second pipe 33 in the abnormal use state (e.g., the burst state). The connection between the position-limiting body 34d and the second tube 33 can ensure that the position of the position-limiting part d1 relative to the second tube 33 is unchanged, and the position of the second elastic part b2 relative to the second tube 33 is basically unchanged.

At this time, the stopper 34d can prevent the second elastic body 34b from separating from the second tube 33 under special conditions (e.g., a burst state), which may result in leakage of the fluid medium.

In some embodiments, referring to fig. 5, the position-limiting portion d1 is enclosed outside the floating elastic portion b3 and is limited between the tube 34a and the second elastic portion b2.

The limiting part d1 is in an annular structure, and the limiting part d1 is enclosed outside the floating elastic part b 3. Preferably, the position-limiting portion d1 is not in contact with the floating elastic portion b3, so as to avoid influencing the floating range of the floating elastic portion b 3.

When the second elastic portion b2 is not connected to the second tube 33, the position-limiting body 34d is hung on the elastic body 34b through the position-limiting portion d 1. When the second elastic portion b2 is connected to the second tube 33, the stopper 34d is connected to the tube 34a, and the stopper d1 is limited on one side of the second elastic portion b2.

At this time, when the second elastic portion b2 is not connected to the second pipe 33, the annular limiting portion d1 is convenient for hanging the limiting body 34d on the elastic body 34b through the limiting portion d1, and the limiting body 34d is not easy to lose.

In other embodiments, the position-limiting body 34d and the elastic member and the tube 34a can be separately configured, and the position-limiting body 34d is assembled when the second tube 33 needs to be connected.

In some embodiments, when the position-limiting body 34d is connected to the second tube 33, the position-limiting portion d1 abuts against the second elastic portion b2.

The stopper d1 abuts against the second elastic portion b2 in the setting direction X. When the limiting portion d1 abuts against the second elastic portion b2, a certain extrusion force is applied to the second elastic portion b2 through the limiting portion d1, so that the second elastic portion b2 and the second pipe 33 are combined more tightly.

In some embodiments, referring to fig. 5, the position-limiting body 34d further has a surrounding portion d2, the surrounding portion d2 surrounds the second elastic portion b2, and surrounds the second elastic portion b2 to form a space for installing the second tube 33, the surrounding portion d2 is connected to the second tube 33, and the position-limiting portion d1 intersects with the surrounding portion d 2.

The surrounding part d2 is of an annular structure and can be made of plastic, metal and ceramic, and the surrounding part d2 and the limiting part d1 can be integrally formed and can be fixedly connected.

After the second elastic portion b2 and the second pipe 33 are connected, the surrounding portion d2 embraces the second pipe 33, so that the second pipe 33 and the second elastic portion b2 can be connected more tightly.

In some embodiments, referring to fig. 6 and 8, the surrounding portion d2 is configured with a guide groove f and a clamping portion g, the guide groove f is disposed along the sleeving direction of the second elastic portion b2, and the clamping portion g clamps the second pipe 33 when the guide groove f is assembled with the second pipe 33.

Understandably, a guide protrusion is provided on the second pipe member 33, and the guide groove f is fitted with the guide protrusion. Specifically, the clamping portion g on the surrounding portion d2 is a bayonet, and the second pipe 33 is correspondingly provided with a clamp, or the clamp and the bayonet are oppositely arranged.

When the second pipe member 33 is mounted, the guide protrusion on the second pipe member 33 can be inserted into the space between the surrounding portion d2 and the second elastic portion b2 along the guide groove f, and when the second pipe member 33 and the second elastic portion b2 are mounted in place. In the process of insertion, the clamping portion g is clamped with the second pipe fitting 33.

At this time, quick mounting of the second pipe member 33 to the surrounding portion d2 can be achieved.

In some embodiments, referring to fig. 5, a convex portion m is formed on a surface of the second elastic portion b2 for sealing and sleeving with the second pipe 33. The convex portion m may be formed of a bump, a ridge, a convex ring, or the like. In this case, the convex portion m can increase the contact area between the second elastic portion b2 and the second pipe 33, thereby improving the connection reliability between the second pipe 33 and the second elastic portion b2 and facilitating the detachment of the two. Meanwhile, the convex portion m can also improve the interference between the second elastic portion b2 and the second pipe 33, and improve the sealing effect of the two.

In some embodiments, referring to fig. 5, the first elastic portion b1 is sleeved inside the tube 34a. The first elastic portion b1 and the tube 34a may be interference-connected. When mounting, the first pipe 32 is inserted into the first elastic portion b1 and sealingly sleeved with the first elastic portion b 1. At this time, the floating joint 34 has a simple structure and a low manufacturing cost.

The fitting direction of the first elastic portion b1 and the first pipe 32 may coincide with, be parallel to, or intersect with the fitting direction of the second elastic portion b2 and the second pipe 33, and is not limited in particular.

In an embodiment of the present application, the floating joint 34 includes a pipe body 34a, an elastic body 34b and a limiting body 34d, the elastic body 34b includes a first elastic portion b1, a second elastic portion b2 and a floating elastic portion b3 which are integrally formed, the first elastic portion b1 is disposed on the pipe body 34a and is used for sealing and sleeving the first pipe 32, the second elastic portion b2 is used for sealing and sleeving the second pipe 33, and the floating elastic portion b3 is in floating connection and communicates with the pipe body 34a and the second elastic portion b2. The first elastic portion b1 is disposed inside the tube 34a, and the floating elastic portion b3 is at least partially disposed outside the tube 34a. The limiting body 34d is used for connecting the second pipe 33 and has a limiting portion d1, and the limiting portion d1 blocks the second elastic portion b2 in a direction away from the second pipe 33.

In a second aspect, the embodiment of the present application further provides a heat exchange system 30, referring to fig. 7, the heat exchange system 30 includes a heat exchange plate 31, a heat exchange medium supply source (not shown), a first pipe 32, a second pipe 33, and the floating joint 34. One of the first pipe member 32 and the second pipe member 33 is connected to the heat exchange plate 31, and the other is communicated with a heat exchange medium supply source.

The heat exchange system 30 can be applied to cooling/heating the battery cells 20, but is not limited to the cooling/heating, and can also be applied to any other occasions requiring cooling/heating. When cooling/heating the battery cell 20, the heat exchange plate 31 may be directly disposed on the battery cell 20 to directly cool/heat the battery cell 20. It is also possible to provide on the case 10 accommodating the battery cells 20 in the battery 100 to achieve indirect cooling/heating of the battery cells 20.

The heat exchange medium supply source is used for providing a heat exchange medium, and the heat exchange medium can be a liquid medium or a gaseous medium and the like. The heat exchange plate 31 can be a hollow plate or the like, and a heat exchange medium can flow through the heat exchange plate. Of course, the configuration of the heat exchange plate 31 is not limited to a plate shape as long as cooling/heating of other structures can be achieved.

The heat exchange system 30 has all the above advantages, which are not described herein.

On the other hand, referring to fig. 7, the present application further provides a battery 100, which includes a battery cell 20 and the heat exchanging system 30 according to the above embodiment, and the heat exchanging plate 31 is used for exchanging heat with the battery cell 20. It has all the above beneficial effects, and is not described herein.

The heat exchanging plate 31 may be adhered to the battery cell 20, and may be fixed to the battery cell 20. One heat exchanging body may cover a plurality of battery cells 20 at the same time to cool down the plurality of battery cells 20 at the same time. (in this case, the plurality of battery cells 20 form a battery 100 module, that is, the heat exchanger can cool the battery 100 module)

In the embodiment shown in fig. 7, one heat exchange plate 31 may exchange heat for a plurality of battery cells 20 at the same time, and the battery cells 20 are disposed on the heat exchange plate 31 at the side in the thickness direction Y. In addition, the first pipe member 32 is connected to the heat exchange plate, and the second pipe member 33 is connected to a heat exchange medium supply source. The second pipe members 33 are connected to a heat exchange medium supply source after merging into the same pipe.

On the other hand, the present application also provides an electric device, which includes the above battery 100, and the battery 100 is used for providing electric energy. It has all the above beneficial effects, and is not described herein.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is specific and detailed, but not construed as limiting the scope of the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (15)

1. A floating joint (34) for connecting a first pipe element (32) and a second pipe element (33), characterized in that the floating joint (34) comprises:

a tube (34 a); and

the elastic body (34 b) comprises a first elastic part (b 1), a second elastic part (b 2) and a floating elastic part (b 3), and the first elastic part (b 1) is arranged on the pipe body (34 a) and is used for being sleeved with the first pipe fitting (32) in a sealing manner;

the second elastic part (b 2) is used for sealing and sleeving the second pipe fitting (33), and the floating elastic part (b 3) is in floating connection and communicated with the pipe body (34 a) and the second elastic part (b 2).

2. Floating joint (34) according to claim 1, wherein said second elastic portion (b 2) sealingly nests said second pipe element (33) in a set direction (X);

the floating joint (34) is provided with a floating space (K) that allows the floating elastic portion (b 3) to float in the set direction (X) and in a direction perpendicular to the set direction (X).

3. A floating joint (34) as claimed in claim 2 wherein said floating resilient portion (b 3) is located at least partially outside said tube body (34 a);

the floating space (K) is a space defined by the floating elastic part (b 3) located outside the pipe body (34 a), the second elastic part (b 2), and the pipe body (34 a).

4. The floating joint (34) of claim 1, wherein the first resilient portion (b 1), the second resilient portion (b 2) and the floating resilient portion (b 3) are integrally formed.

5. The floating joint (34) according to claim 1, wherein the floating joint (34) further comprises a reinforcing body (34 c), the reinforcing body (34 c) being provided to the second elastic portion (b 2).

6. The floating joint (34) according to claim 1, wherein the floating joint (34) further comprises a stopper body (34 d), the stopper body (34 d) being for connecting the second pipe (33);

the limiting body (34 d) is provided with a limiting part (d 1), when the second pipe fitting (33) is in sealed sleeve joint with the second elastic part (b 2), the limiting part (d 1) blocks the second elastic part (b 2) to break away from the second pipe fitting (33) in the direction.

7. The floating joint (34) according to claim 6, wherein the retaining portion (d 1) is enclosed outside the floating elastic portion (b 3) and retained between the tube (34 a) and the second elastic portion (b 2).

8. The floating joint (34) according to claim 6, wherein when the stopper body (34 d) is connected to the second pipe member (33), the stopper portion (d 1) abuts against the second elastic portion (b 2).

9. The floating joint (34) according to claim 6, wherein the stopper body (34 d) further has a surrounding portion (d 2), the surrounding portion (d 2) surrounding the periphery of the second elastic portion (b 2) and forming a space for mounting the second pipe member (33) with the second elastic portion (b 2);

the surrounding part (d 2) is connected with the second pipe fitting (33), and the limiting part (d 1) and the surrounding part (d 2) are arranged in an intersecting mode.

10. The floating joint (34) according to claim 9, wherein the surrounding portion (d 2) is configured with a guide groove (f) and a catching portion (g), the guide groove (f) being provided along a nesting direction of the second elastic portion (b 2);

guide way (f) with during second pipe fitting (33) assembly, joint portion (g) joint second pipe fitting (33).

11. Floating joint (34) according to claim 1, characterised in that said second elastic portion (b 2) is configured with a protrusion (m) on the surface for sealing engagement with said second tubular element (33).

12. The floating joint (34) according to claim 1, wherein the first resilient portion (b 1) is fitted around the inside of the pipe body (34 a).

13. A heat exchange system (30) comprising a heat exchange plate (31), a heat exchange medium supply, a first pipe member (32), a second pipe member (33) and a floating joint (34) according to any one of claims 1-12;

one of the first pipe member (32) and the second pipe member (33) is connected to the heat exchange plate (31), and the other is communicated with the heat exchange medium supply source.

14. A battery (100) comprising a battery cell (20) and a heat exchange system (30) according to claim 13, wherein the heat exchange plate (31) is configured to exchange heat with the battery cell (20).

15. An electric consumer, characterized in that it comprises a battery (100) according to claim 14, said battery (100) being intended to provide electric energy.

Images