Connecting pipe structure, heat exchange system, battery and electric device

Abstract

The utility model relates to the technical field of batteries, and provides a connecting pipe structure, a heat exchange system, a battery and an electric device. The connecting pipe structure comprises a flexible inner pipe and a flexible outer pipe, the outer pipe is matched with the flexible inner pipe in shape, the outer pipe comprises at least two splicing pipe fittings, the at least two splicing pipe fittings are arranged on the peripheral side of the flexible inner pipe in a splicing mode in the circumferential direction of the flexible inner pipe, and the adjacent splicing pipe fittings are detachably connected; and the hooping piece is used for being arranged on the peripheral side of the outer pipe so as to fix the at least two splicing pipe fittings. According to the technical scheme, the mounting and dismounting efficiency can be improved, the risk of damage in the dismounting process is reduced, and therefore the production cost of products is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a connecting pipe structure, a heat exchange system, a battery and an electrical device. Background Art

[0002] With the rapid development of new energy vehicles, batteries are increasingly entering the public eye. In order to improve the service life and performance of batteries, a heat exchange system is needed to exchange heat for the battery cells.

[0003] At present, the main heat exchange method of the battery is to exchange heat for the battery cells of the battery through the heat exchange plate. The flow channel inlet and the flow channel outlet of the heat exchange plate are respectively provided with an inlet pipe section and an outlet pipe section. The adjacent heat exchange plates are connected by an integrated connecting pipe and the inlet pipe section and the outlet pipe section of the heat exchange plate through interference fitting. However, when the integrated connecting pipe and the liquid cooling pipe section are not properly plugged in or are damaged, the integrated connecting pipe needs to be dismantled and reworked as a whole. The disassembly and replacement efficiency is low and it is easy to be damaged, resulting in a waste of production costs. Utility Model Content

[0004] In view of the above problems, the purpose of this application is to provide a connecting pipe structure, a heat exchange system, a battery and an electrical device, so as to improve the efficiency of disassembly and assembly of the connecting pipe and the liquid cooling pipe section of the heat exchange plate and reduce the production cost. This purpose is achieved through the following technical solutions:

[0005] In the first aspect, the present application provides a connecting pipe structure, comprising: a flexible inner tube; an outer tube, adapted to the shape of the flexible inner tube, the outer tube comprising at least two spliced ​​tube components, at least two of the spliced ​​tube components are spliced ​​along the circumference of the flexible inner tube and arranged on the outer peripheral side of the flexible inner tube, and adjacent spliced ​​tube components are detachably connected; a clamping member, used to be arranged on the outer peripheral side of the outer tube to fix at least two of the spliced ​​tube components.

[0006] In the technical solution of this embodiment, the connecting pipe structure is used to connect between two adjacent heat exchange plates. When assembling, firstly, the two ends of the flexible inner pipe are plugged and connected with the inlet pipe section and the outlet pipe section of the two adjacent heat exchange plates, and then the inner wall surface of at least two splicing pipes are fitted with the outer wall surface of the flexible inner pipe, and at least two splicing pipes are spliced ​​and connected in sequence, so that the outer pipe composed of at least two splicing pipes can be sleeved on the outside of the flexible inner pipe to protect the flexible inner pipe, and the connecting pipe structure as a whole has a certain rigidity. Finally, the clamping piece is clamped on the outer surface of the outer pipe to fix the at least two splicing pipes, reduce the risk of the at least two splicing pipes moving relative to each other, and thus help to improve the reliability of the outer pipe assembly connection. When the connecting pipe structure needs to be disassembled, at least two spliced ​​pipe fittings can be separated from each other first, and then the two ends of the flexible inner pipe can be pulled out from the inlet pipe section and the outlet pipe section of the two adjacent heat exchange plates in turn, so that the connecting pipe structure can be disassembled. Since the flexible inner pipe and the outer pipe are not easily damaged during disassembly, they can be recycled. At the same time, the risk of rework of the connecting pipe structure and damage to the heat exchange plate can be reduced, which helps to reduce the production cost of the product.

[0007] In addition, the connecting pipe structure provided by the present application may also have the following additional technical features:

[0008] In some embodiments of the present application, a limiting groove is defined on the outer circumference of the outer tube, and the clamp is used to be arranged in the limiting groove.

[0009] In some embodiments of the present application, the at least two splicing tubes include a first splicing tube and a second splicing tube for connecting to the first splicing tube, one of the first splicing tube and the second splicing tube is provided with a first card slot, and the other is provided with a first card protrusion adapted to the first card slot, and the first card protrusion can be inserted into the first card slot.

[0010] By providing a first clamping groove on one of the first splicing pipe component and the second splicing pipe component, and providing a first clamping protrusion on the other, and inserting the first clamping protrusion into the first clamping groove, the first splicing pipe component and the second splicing pipe component can be assembled and connected. By disengaging the first clamping protrusion from the first clamping groove, the first splicing pipe component and the second splicing pipe component can be disassembled, which effectively improves the efficiency of installing or disassembling the first splicing pipe component and the second splicing pipe component.

[0011] In some embodiments of the present application, the splicing pipe fitting has a splicing surface, the first slot has a first slot segment and a second slot segment connected to the first slot segment, the second slot segment is connected between the splicing surface and the first slot segment, wherein along the axial direction of the outer tube, the minimum dimension of the first slot segment is greater than the maximum dimension of the second slot segment.

[0012] When at least two splicing pipe fittings are connected, the splicing surfaces of adjacent splicing pipe fittings can contact each other. Since the minimum size of the first groove section of the first clamping groove is larger than the size of the second groove section along the axial direction of the outer tube, when the first clamping protrusion is inserted into the first groove section and the second groove section, the first clamping protrusion can stop against the wall surface of the first groove section on the side close to the second groove section to play a limiting role, so that when the first clamping protrusion is subjected to tension, the risk of the first clamping protrusion being separated from the first clamping groove can be reduced, thereby improving the reliability and stability of the connection of adjacent connecting pipe fittings.

[0013] In some embodiments of the present application, there are multiple first card slots, and the multiple first card slots are spaced apart along the axial direction of the outer tube; the number of the first card protrusions is the same as the number of the first card protrusions, and the multiple first card protrusions are inserted into the multiple first card slots in a one-to-one correspondence.

[0014] The number of first clamping grooves and first clamping protrusions is increased, and a plurality of first clamping protrusions are correspondingly clamped with a plurality of first clamping grooves, thereby further improving the reliability and stability of the connection between adjacent splicing components.

[0015] In some embodiments of the present application, along the axial direction of the outer tube, the first clamping protrusion is provided in the middle part of the splicing tube component, and the first clamping protrusion is also provided at a first position near the end of the splicing tube component, wherein the first position is located between the end of the splicing tube component and the middle part of the splicing tube component, and along the axial direction of the outer tube or along a direction perpendicular to the axial direction of the outer tube, the size of the first clamping protrusion located in the middle part of the splicing tube component is larger than the size of the first clamping protrusion located at the first position.

[0016] Since the middle part of the splicing pipe along its axial direction is easily deformed by force without the restraint of the fastener, the reliability of the splicing pipe connection can be further improved by setting the size of the first clamping protrusion located in the middle part of the splicing pipe to be larger than the size of the first clamping protrusion near the end of the splicing pipe.

[0017] In some embodiments of the present application, the flexible inner tube includes a first tube body and a transition connection section provided at at least one end of the first tube body, and the tube diameter of the transition connection section gradually increases along the direction from the first tube body to the transition connection section.

[0018] The transition connection section is used to be sleeved on the inlet pipe section or outlet pipe section of the heat exchange plate. By setting the pipe diameter of the transition connection section to gradually increase in the direction away from the first pipe body to form a bell-mouth shape, it can be adapted to inlet pipe sections or outlet pipe sections of various specifications and sizes to improve the applicability of the product.

[0019] In some embodiments of the present application, the outer surface of the outer tube is provided with a first limiting rib and a second limiting rib arranged at intervals along the axial direction of the outer tube, and the limiting groove is defined between the first limiting rib and the second limiting rib; and / or, the number of the limiting grooves is two, and the two limiting grooves are respectively arranged near the two ends of the axial direction of the outer tube, and each of the limiting grooves is provided with a clamping member.

[0020] The first limiting convex rib and the second limiting convex rib are arranged at intervals on the outer peripheral side of the outer tube, and are both extended along the circumference of the outer tube, so as to define a limiting groove for installing the clamping member between the outer tube.

[0021] By setting the number of limit grooves to two, when one end of the connecting pipe structure is connected to the inlet pipe section of the heat exchange plate and the other end is connected to the outlet pipe section of another heat exchange plate, the clamping member is used to clamp in the two limit grooves, thereby constraining the connecting pipe structure, so as to further improve the reliability of the connection of the connecting pipe structure.

[0022] In some embodiments of the present application, the wall thickness of the splicing tube in the region where the two limiting grooves are located is greater than the wall thickness of the region between the two limiting grooves.

[0023] By setting the wall thickness of the area where the limit groove is located to be greater than the wall thickness of the area of ​​the outer tube located between the two limit grooves, the stiffness and hardness of the outer tube in the area where the limit groove is located can be appropriately increased, thereby reducing the risk of the outer tube being compressed due to the high stress when the clamp is tightened.

[0024] In some embodiments of the present application, along the axial direction of the outer tube, the size of the limit groove is not less than the size of the clamping member; and / or, the bottom wall surface of the limit groove is provided with at least one second clamping protrusion, and the clamping member is provided with at least one second clamping groove adapted to the second clamping protrusion, and the at least one second clamping protrusion can be correspondingly inserted into the at least one second clamping groove; and / or, the side of the flexible inner tube facing away from the outer tube is coated with a lubricating layer.

[0025] That is, the width of the limiting groove is greater than or equal to the width of the clamping member, thereby facilitating the installation of the clamping member, improving the convenience of operation, and reducing the risk of interference or jamming between the clamping member and the limiting groove.

[0026] When installing the clamping piece, the second clamping protrusion can be clamped in the second clamping groove on the clamping piece, thereby limiting the clamping piece and reducing the risk of the clamping piece sliding relative to the limiting groove, thereby improving the stability of the clamping effect of the clamping piece on the outer tube.

[0027] In some embodiments of the present application, the flexible inner tube includes a rubber tube; and / or the outer tube includes a plastic tube, and the hardness of the outer tube is greater than the hardness of the flexible inner tube.

[0028] The rubber tube has good flexibility, which makes it easy to install and connect with the inlet and outlet sections of the heat exchanger plate, and easy to disassemble. At the same time, the rubber tube is wear-resistant and extrusion-resistant, which helps to increase the service life of the product.

[0029] The plastic tube has a certain hardness, and the hardness of the outer tube is greater than the hardness of the flexible inner tube, so it can play a good compressive protection role and help to further improve the reliability of product use.

[0030] In a second aspect, the present application provides a heat exchange system, comprising:

[0031] A heat exchange plate, wherein a cooling channel is provided in the heat exchange plate, the cooling channel is used to accommodate a heat exchange medium, and an inlet pipe section and an outlet pipe section are respectively provided at both ends of the cooling channel;

[0032] In the connecting pipe structure described in any one of the embodiments of the first aspect, the flexible inner pipe of the connecting pipe structure is connected to the inlet pipe section and / or the outlet pipe section.

[0033] In a third aspect, the present application provides a battery, comprising:

[0034] A battery cell; and a heat exchange system as described in the second aspect of the embodiment, wherein the heat exchange plate of the heat exchange system is thermally connected to the battery cell.

[0035] In a fourth aspect, the present application provides an electrical device, comprising a battery as described in the implementation of the third aspect, wherein the battery is used to power the electrical device.

[0036] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0038] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0039] Figure 2 A schematic diagram of the exploded structure of a battery according to some embodiments of the present application;

[0040] Figure 3 A schematic diagram of a partial structure of a battery according to some embodiments of the present application;

[0041] Figure 4 A schematic diagram of an exploded structure of a connecting pipe structure provided in some embodiments of the present application;

[0042] Figure 5 for Figure 4 The enlarged structural diagram of the middle A part;

[0043] Figure 6 A schematic diagram of an assembly structure of a connecting pipe structure provided in some embodiments of the present application.

[0044] The reference numerals are as follows:

[0045] 1000. Vehicles;

[0046] 100, battery; 200, controller; 300, motor;

[0047] 10. Box body; 11. First part; 12. Second part;

[0048] 20. Battery cell; 30. Heat exchange plate; 40. Connecting pipe structure;

[0049] 41. flexible inner tube; 411. transition connection section;

[0050] 42, outer tube; 421, first splicing pipe; 4211, first clamping groove; 42111, first groove section; 42112, second groove section; 4212, splicing surface; 422, second splicing pipe; 4221, first clamping protrusion; 423, limiting groove; 4231, first limiting convex rib; 4232, second limiting convex rib; 424, second clamping protrusion;

[0051] 43. Tightening member; 431. Second slot. DETAILED DESCRIPTION

[0052] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0054] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0055] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0056] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0057] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0058] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0059] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0060] At present, from the perspective of market development, the application of batteries is becoming more and more extensive. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of battery application areas, its market demand is also constantly expanding.

[0061] Among them, the heat exchange method of the battery is mainly to exchange heat for the battery cells of the battery through the heat exchange plate. The flow channel inlet and the flow channel outlet of the heat exchange plate are respectively provided with an inlet pipe section and an outlet pipe section. The adjacent heat exchange plates are connected by an integrated connecting pipe and the inlet pipe section and the outlet pipe section of the heat exchange plate through interference fitting. However, when the integrated connecting pipe and the liquid cooling pipe section are not properly plugged in or are damaged, the integrated connecting pipe needs to be dismantled and reworked as a whole. The disassembly and replacement efficiency is low and it is easy to be damaged, resulting in a waste of production costs.

[0062] In order to solve the problem that when an integrated connecting pipe is used to connect adjacent heat exchange plates, it is easy to need to be dismantled and reworked due to improper insertion or damage, resulting in low disassembly and replacement efficiency and easy damage leading to increased production costs, the present application designs a connecting pipe structure, by arranging at least two detachable splicing pipe fittings on the outside of a flexible inner tube, at least two splicing pipe fittings are arranged around the outside of the flexible inner tube to form an outer tube, and the two ends of the flexible inner tube are first plug-connected with the inlet pipe section and the outlet pipe section of the two adjacent heat exchange plates, and then the at least two splicing pipe fittings are arranged on the outer side of the flexible inner tube in a splicing manner, and finally, the clamping piece is used to tighten it in the limit groove of the outer tube to provide a certain binding force to the connection position of the connecting pipe structure and the heat exchange plate, thereby realizing the assembly connection of the connecting pipe structure. When disassembling the connecting pipe structure, first remove the clamping piece, then remove at least two splicing pipe fittings in turn and expose the flexible inner pipe, so that the flexible inner pipe can be pulled out from the inlet pipe section or outlet pipe section of the heat exchange plate. The disassembly process can effectively reduce the risk of damage to the connecting pipe structure, thereby reducing production costs, and the operation is convenient, which helps to improve the efficiency of installation and disassembly of the connecting pipe structure.

[0063] The connecting pipe structure disclosed in the embodiment of the present application is used to connect two adjacent heat exchange plates in a battery. The two ends of the connecting pipe structure are respectively connected to the inlet pipe section of one heat exchange plate and the outlet pipe section of the other heat exchange plate to conduct the two adjacent heat exchange plates, so that the heat exchange plates can be used to exchange heat for the battery cells.

[0064] The embodiment of the present application provides an electric device using a battery as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0065] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0066] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0067] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0068] Please refer to Figure 2 , Figure 2An exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a box 10 and a battery cell 20, and the battery cell 20 is contained in the box 10. Among them, the box 10 is used to provide a storage space for the battery cell 20, and the box 10 can adopt a variety of structures. In some embodiments, the box 10 may include a first part 11 and a second part 12, the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 jointly define a storage space for accommodating the battery cell 20. The second part 12 may be a hollow structure with one end open, the first part 11 may be a plate-like 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 storage space; the first part 11 and the second part 12 may also be hollow structures with one side open, and the open side of the first part 11 covers the open side of the second part 12. Of course, the box 10 formed by the first part 11 and the second part 12 may be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0069] In the battery 100, there may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a mixed connection. The mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the box 10; of course, the battery 100 may also be a battery module formed by first connecting multiple battery cells 20 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and then accommodated in the box 10.

[0070] Each battery cell 20 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0071] See also Figure 3 , Figure 3 Schematic diagram of the partial structure of the battery of some embodiments of the present application. In some embodiments, the battery 100 also includes a heat exchange system, which includes a heat exchange plate 30 and a connecting pipe structure 40. Among them, the battery cells 20 are divided into multiple groups and arranged at intervals, and a heat exchange plate 30 is arranged on the side of each group of battery cells 20, and the heat exchange plate 30 is used to be thermally connected to the battery cells 20. A heat exchange flow channel is provided in the heat exchange plate 30, and the heat exchange flow channel has an inlet pipe section and an outlet pipe section. Adjacent heat exchange plates 30 are connected to each other through the connecting pipe structure 40.

[0072] See also Figure 4 and Figure 6 , Figure 4 A schematic diagram of an exploded structure of a connecting pipe structure provided in some embodiments of the present application; Figure 6A schematic diagram of an assembly structure of a connecting pipe structure provided for some embodiments of the present application. The present application provides a connecting pipe structure 40, comprising: a flexible inner pipe 41; an outer pipe 42, adapted to the shape of the flexible inner pipe 41, the outer pipe 42 comprising at least two spliced ​​pipe fittings, at least two spliced ​​pipe fittings are spliced ​​along the circumference of the flexible inner pipe 41 and arranged on the outer peripheral side of the flexible inner pipe 41, and adjacent spliced ​​pipe fittings are detachably connected; a clamp 43, the outer peripheral side of the outer pipe 42 defines a limiting groove 423, the clamp 43 is used to be arranged in the limiting groove 423, and is used to fix at least two spliced ​​pipe fittings.

[0073] In this embodiment, illustratively, the flexible inner tube 41 may be a tube having a certain flexibility, such as a rubber tube, a plastic tube, or a silicone tube.

[0074] At least two splicing pipe parts can be connected by a detachable connection method such as snap connection or bonding.

[0075] The clamping member 43 may be a clamp or a clamping member 43 having a certain elasticity.

[0076] The connecting pipe structure 40 is used to connect between two adjacent heat exchange plates 30. When assembling, firstly, the two ends of the flexible inner pipe 41 are plugged and connected with the inlet pipe section and the outlet pipe section of the two adjacent heat exchange plates 30, and then the inner wall surface of at least two spliced ​​pipes are fitted with the outer wall surface of the flexible inner pipe 41, and at least two spliced ​​pipes are spliced ​​and connected in sequence, so that the outer pipe 42 composed of at least two spliced ​​pipes can be sleeved on the outside of the flexible inner pipe 41 to protect the flexible inner pipe 41, and the connecting pipe structure 40 can have a certain rigidity as a whole. Finally, the clamping member 43 is clamped in the limiting groove 423 defined by the outer surface of the outer pipe 42 to fix the at least two spliced ​​pipes, reduce the risk of the at least two spliced ​​pipes moving relative to each other, and thus help to improve the reliability of the assembly connection of the outer pipe 42. When the connecting pipe structure 40 needs to be disassembled, at least two spliced ​​pipe fittings can be separated from each other first, and then the two ends of the flexible inner pipe 41 can be pulled out from the inlet pipe section and the outlet pipe section of the two adjacent heat exchange plates 30 in turn, so that the connecting pipe structure 40 can be disassembled. Since the flexible inner pipe 41 and the outer pipe 42 are not easily damaged during disassembly, they can be recycled. At the same time, the risk of rework of the connecting pipe structure 40 and damage to the heat exchange plate 30 can be reduced, which helps to reduce the production cost of the product.

[0077] See also Figure 4According to some embodiments of the present application, at least two splicing tubes include a first splicing tube 421 and a second splicing tube 422 connected to the first splicing tube 421, one of the first splicing tube 421 and the second splicing tube 422 is provided with a first card slot 4211, and the other is provided with a first card protrusion 4221 adapted to the first card slot 4211, and the first card protrusion 4221 is inserted into the first card slot 4211.

[0078] In this embodiment, it can be understood that each splicing pipe component has two end surfaces for splicing with another splicing pipe component, and one or more first clamping protrusions 4221 or first clamping grooves 4211 can be provided on each end surface.

[0079] By providing a first clamping groove 4211 on one of the first splicing pipe component 421 and the second splicing pipe component 422, and providing a first clamping protrusion 4221 on the other, and inserting the first clamping protrusion 4221 into the first clamping groove 4211, the first splicing pipe component 421 and the second splicing pipe component 422 can be assembled and connected. By disengaging the first clamping protrusion 4221 from the first clamping groove 4211, the first splicing pipe component 421 and the second splicing pipe component 422 can be disassembled, which effectively improves the efficiency of installing or disassembling the first splicing pipe component 421 and the second splicing pipe component 422.

[0080] See also Figure 5 , Figure 5 for Figure 4 An enlarged structural diagram of the middle A portion. According to some embodiments of the present application, the splicing pipe fitting has a splicing surface 4212, the first slot 4211 has a first slot section 42111 and a second slot section 42112 connected to the first slot section 42111, the second slot section 42112 is connected between the splicing surface 4212 and the first slot section 42111, wherein along the axial direction of the outer tube 42, the minimum dimension of the first slot section 42111 is greater than the maximum dimension of the second slot section 42112.

[0081] In this embodiment, illustratively, the cross-sectional shape of the first slot segment 42111 may be a triangular, rhombus, trapezoidal, or other special-shaped shapes. The cross-sectional shape of the second slot segment 42112 may be a rectangular or square.

[0082] When at least two splicing pipe fittings are connected, the splicing surfaces 4212 of adjacent splicing pipe fittings can contact each other. Since the minimum size of the first slot section 42111 of the first slot 4211 is greater than the size of the second slot section 42112 along the axial direction of the outer tube 42, when the first clamping protrusion 4221 is inserted into the first slot section 42111 and the second slot section 42112, the first clamping protrusion 4221 can stop against the wall surface of the first slot section 42111 close to the second slot section 42112 to play a limiting role, so that when the first clamping protrusion 4221 is subjected to tension, the risk of the first clamping protrusion 4221 being separated from the first slot 4211 can be reduced, thereby improving the reliability and stability of the connection of adjacent connecting pipe fittings.

[0083] See also Figure 4 According to some embodiments of the present application, there are multiple first card grooves 4211, and the multiple first card grooves 4211 are arranged at intervals along the axial direction of the outer tube 42; the number of first card protrusions 4221 is the same as the number of first card protrusions 4221, and the multiple first card protrusions 4221 are inserted into the multiple first card grooves 4211 one by one.

[0084] In this embodiment, the number of first latching grooves 4211 and first latching protrusions 4221 is increased, and a plurality of first latching protrusions 4221 are correspondingly engaged with a plurality of first latching grooves 4211, thereby further improving the reliability and stability of the connection between adjacent splicing components.

[0085] According to some embodiments of the present application, along the axial direction of the outer tube 42, a first latching protrusion 4221 is provided in the middle of the splicing tube component, and a first latching protrusion 4221 is also provided at a first position near the end of the splicing tube component, wherein the first position is located between the end of the splicing tube component and the middle of the splicing tube component, and the outline size of the first latching protrusion 4221 located in the middle of the splicing tube component is larger than the outline size of the first latching protrusion 4221 located at the first position.

[0086] In this embodiment, since the middle part of the splicing tube along its axial direction is easily deformed by force when there is no restraint from the fastening member 43, the reliability of the splicing tube connection can be further improved by setting the size of the first latching protrusion 4221 located in the middle part of the splicing tube to be larger than the size of the first latching protrusion 4221 near the end of the splicing tube.

[0087] See also Figure 4 According to some embodiments of the present application, the flexible inner tube 41 includes a first tube body and a transition connection section 411 provided at at least one end of the first tube body, and the tube diameter of the transition connection section 411 gradually increases along the direction from the first tube body to the transition connection section 411.

[0088] In this embodiment, illustratively, both ends of the first pipe body are provided with transition connection sections 411. The transition connection section 411 is in a bell-mouth shape.

[0089] The transition connection section 411 is used to be sleeved on the inlet pipe section or the outlet pipe section of the heat exchange plate 30. By setting the pipe diameter of the transition connection section 411 to gradually increase in the direction away from the first pipe body to form a trumpet shape, it can be adapted to inlet pipe sections or outlet pipe sections of various specifications and sizes to improve the applicability of the product.

[0090] See also Figure 4 According to some embodiments of the present application, the outer surface of the outer tube 42 is provided with a first limiting rib 4231 and a second limiting rib 4232 spaced apart along the axial direction of the outer tube 42, and a limiting groove 423 is defined between the first limiting rib 4231 and the second limiting rib 4232.

[0091] In this embodiment, illustratively, the first limiting rib 4231 and the second limiting rib 4232 are annular in shape. The first limiting rib 4231 and the second limiting rib 4232 are both connected to the outer tube 42 in one piece.

[0092] The first limiting rib 4231 and the second limiting rib 4232 are arranged at intervals on the outer peripheral side of the outer tube 42 and are both extended along the circumference of the outer tube 42 , so as to define a limiting groove 423 for installing the clamp 43 between the outer tube 42 .

[0093] See also Figure 4 According to some embodiments of the present application, the number of the limiting grooves 423 is two, and the two limiting grooves 423 are respectively arranged near the two ends of the axial direction of the outer tube 42, and a clamping member 43 is arranged in each limiting groove 423.

[0094] In this embodiment, by setting the number of limit grooves 423 to two, when one end of the connecting pipe structure 40 is connected to the inlet pipe section of the heat exchange plate 30 and the other end is connected to the outlet pipe section of another heat exchange plate 30, the clamping member 43 is clamped in the two limit grooves 423, thereby constraining the connecting pipe structure 40, so as to further improve the reliability of the connection of the connecting pipe structure 40.

[0095] According to some embodiments of the present application, along the axial direction of the outer tube 42 , the wall thickness of the spliced ​​tube in the region where the two limiting grooves 423 are located is greater than the wall thickness of the region between the two limiting grooves 423 .

[0096] In this embodiment, the wall thickness of the area where the limit groove 423 is located is set to be greater than the wall thickness of the area of ​​the outer tube 42 located between the two limit grooves 423, so as to appropriately increase the stiffness and hardness of the outer tube 42 in the area where the limit groove 423 is located, thereby reducing the risk of the outer tube 42 being compressed due to the high stress when the clamp 43 is tightened.

[0097] According to some embodiments of the present application, along the axial direction of the outer tube 42 , the size of the limiting groove 423 is not less than the size of the clamping member 43 .

[0098] In this embodiment, the width of the limiting groove 423 is greater than or equal to the width of the fastening member 43, so as to facilitate the installation of the fastening member 43, improve the convenience of operation, and reduce the risk of interference or jamming between the fastening member 43 and the limiting groove 423.

[0099] According to some embodiments of the present application, the bottom wall surface of the limiting groove 423 is provided with at least one second latching protrusion 424, the tightening member 43 is provided with at least one second latching groove 431 adapted to the second latching protrusion 424, and at least one second latching protrusion 424 is correspondingly inserted into at least one second latching groove 431.

[0100] In this embodiment, when the clamping member 43 is installed, the second latching protrusion 424 can be latched in the second latching groove 431 on the clamping member 43, thereby limiting the clamping member 43 and reducing the risk of the clamping member 43 sliding relative to the limiting groove 423, thereby improving the stability of the clamping effect of the clamping member 43 on the outer tube 42.

[0101] According to some embodiments of the present application, a side of the flexible inner tube 41 facing away from the outer tube 42 is coated with a lubricating layer.

[0102] In this embodiment, the lubricating layer is lubricating oil, and the lubricating oil is coated on the inner surface of the flexible inner tube 41 to facilitate connection or disassembly of the flexible inner tube 41 with the inlet pipe section and the outlet pipe section of the heat exchange plate 30 .

[0103] According to some embodiments of the present application, the flexible inner tube 41 includes a rubber tube; the outer tube 42 includes a plastic tube, and the hardness of the outer tube 42 is greater than that of the flexible inner tube 41 .

[0104] The rubber tube has good flexibility, is convenient for installation and connection with the inlet pipe section and the outlet pipe section of the heat exchange plate 30, and is convenient for disassembly. At the same time, the rubber tube has the effects of wear resistance and extrusion resistance, which helps to improve the service life of the product.

[0105] The plastic tube has a certain hardness, and the hardness of the outer tube 42 is greater than the hardness of the flexible inner tube 41, so it can play a good role in pressure resistance protection, which helps to further improve the reliability of product use.

[0106] See also Figures 3 to 6 According to some embodiments of the present application, the present application provides a connecting pipe structure 40, including a flexible inner pipe 41, an outer pipe 42 and two clamping members 43. Among them, the flexible inner pipe 41 includes a first pipe body and a transition connection section 411 arranged at both ends of the first pipe body, and the transition connection section 411 gradually increases in diameter from one end connected to the first pipe body to the other end. The outer pipe 42 is adapted to the shape of the flexible inner pipe 41, and includes at least two splicing pipes, at least two splicing pipes are detachably connected and arranged on the outer peripheral side of the flexible inner pipe 41, adjacent splicing pipes. The outer surface of the two ends of the outer pipe 42 in the axial direction is provided with a limiting groove 423, and the two clamping members 43 are respectively embedded in the two limiting grooves 423, which are used to apply a clamping force to the outer pipe 42 to clamp at least two splicing parts. The connecting pipe structure 40 provided by the technical solution of the present application can improve the efficiency of installation and disassembly, and reduce the risk of damage during the disassembly process, thereby reducing the production cost of the product.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace the components or all the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A connecting pipe structure, characterized in that: include: Flexible inner tube; An outer tube, adapted to the shape of the flexible inner tube, the outer tube comprising at least two splicing tubes, at least two of the splicing tubes being arranged on the outer circumference of the flexible inner tube for splicing along the circumference of the flexible inner tube, and adjacent splicing tubes being detachably connected; The clamping piece is used to be arranged on the outer peripheral side of the outer tube to fix at least two of the spliced ​​tube pieces.

2. The connecting pipe structure according to claim 1, characterized in that: The outer circumference of the outer tube defines a limiting groove, and the clamping member is used to be arranged in the limiting groove.

3. The connecting pipe structure according to claim 1, characterized in that: The at least two splicing tubes include a first splicing tube and a second splicing tube connected to the first splicing tube, one of the first splicing tube and the second splicing tube is provided with a first card slot, and the other is provided with a first card protrusion adapted to the first card slot, and the first card protrusion can be inserted into the first card slot.

4. The connecting pipe structure according to claim 3, characterized in that: The splicing pipe component has a splicing surface, the first slot has a first slot section and a second slot section connected to the first slot section, the second slot section is connected between the splicing surface and the first slot section, Wherein, along the axial direction of the outer tube, the minimum dimension of the first slot segment is greater than the maximum dimension of the second slot segment.

5. The connecting pipe structure according to claim 3 or 4, characterized in that: There are a plurality of first card slots, and the plurality of first card slots are arranged at intervals along the axial direction of the outer tube; The number of the first latching protrusions is the same as the number of the first latching protrusions, and the plurality of the first latching protrusions are inserted into the plurality of the first latching slots in a one-to-one correspondence.

6. The connecting pipe structure according to claim 5, characterized in that: Along the axial direction of the outer tube, the middle part of the splicing pipe is provided with the first clamping protrusion, and the first clamping protrusion is also provided at a first position close to the end of the splicing pipe. Wherein, the first position is located between the end of the splicing pipe and the middle of the splicing pipe, and along the axial direction of the outer tube or along the direction perpendicular to the axial direction of the outer tube, the size of the first clamping protrusion located in the middle of the splicing pipe is larger than the size of the first clamping protrusion located at the first position.

7. The connecting pipe structure according to any one of claims 1 to 4, characterized in that: The flexible inner tube comprises a first tube body and a transition connection section arranged at at least one end of the first tube body, and the tube diameter of the transition connection section gradually increases along the direction from the first tube body to the transition connection section.

8. The connecting pipe structure according to claim 2, characterized in that: The outer surface of the outer tube is provided with a first limiting convex rib and a second limiting convex rib spaced apart along the axial direction of the outer tube, and the limiting groove is defined between the first limiting convex rib and the second limiting convex rib; And / or, the number of the limiting grooves is two, the two limiting grooves are respectively arranged close to the two end portions of the outer tube in the axial direction, and each of the limiting grooves is used to correspond to the arrangement of one of the clamping members.

9. The connecting pipe structure according to claim 8, characterized in that: The wall thickness of the splicing pipe component in the area where the two limiting grooves are located is greater than the wall thickness of the area between the two limiting grooves.

10. The connecting pipe structure according to claim 2, characterized in that: Along the axial direction of the outer tube, the size of the limiting groove is not less than the size of the clamping member; And / or, the bottom wall surface of the limiting groove is provided with at least one second clamping protrusion, the clamping member is provided with at least one second clamping groove adapted to the second clamping protrusion, and the at least one second clamping protrusion can be correspondingly inserted into the at least one second clamping groove; And / or, a side of the flexible inner tube facing away from the outer tube is coated with a lubricating layer.

11. The connecting pipe structure according to any one of claims 1 to 4, characterized in that: The flexible inner tube comprises a rubber tube; And / or, the outer tube comprises a plastic tube, and the hardness of the outer tube is greater than the hardness of the flexible inner tube.

12. A heat exchange system, characterized in that: include: A heat exchange plate, wherein a cooling channel is provided in the heat exchange plate, the cooling channel is used to accommodate a heat exchange medium, and an inlet pipe section and an outlet pipe section are respectively provided at both ends of the cooling channel; The connecting pipe structure according to any one of claims 1 to 11, wherein the flexible inner pipe of the connecting pipe structure is connected to the inlet pipe section and / or the outlet pipe section.

13. A battery, characterized in that: include: Battery cells; and The heat exchange system according to claim 12, wherein the heat exchange plate of the heat exchange system is thermally connected to the battery cell.

14. An electrical device, characterized in that: The invention comprises the battery as claimed in claim 13, wherein the battery is used to supply power to the electrical device.

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