Thermal management system, battery, and power consumption device used for a battery

Abstract

A thermal management system, a battery (300) and a power consumption device (1000) used for a battery, wherein the thermal management system includes a thermal management system main body and a monitoring pipe (100). The thermal management system main body includes a medium pipeline (200) for a heat exchange medium to flow through. The medium pipeline (200) has an inlet end (51) and an outlet end (52), and a removable monitoring pipe (100) is provided at at least one of the inlet end (51) and the outlet end (52).

Description

Technical Field

[0001] [Cross - Reference to Related Applications] This application is filed based on a Chinese patent application with an application number of 202223253590.8 and an application date of December 06, 2022, and claims the priority of this Chinese patent application. All the contents of this Chinese patent application are incorporated herein by reference into this application.

[0002] This application relates to the field of battery technology, specifically to a thermal management system used in batteries, batteries, and power consumption devices.

Background Art

[0003] In related technologies, in order to avoid the battery temperature being too high or too low, generally a thermal management system is installed to adjust the battery temperature. The thermal management system has pipelines for the heat exchange medium to flow through. During the long - term use process, improper use or other reasons may cause liquid leakage due to corrosion of the pipelines. Therefore, it is necessary to regularly inspect or detect the corrosion status of the pipelines of the thermal management system, thereby facilitating timely maintenance.

[0004] However, in related technologies, during the process of inspecting or detecting the corrosion status of the pipelines of the thermal management system, it may cause damage to the pipelines of the thermal management system and increase the maintenance cost. How to inspect or detect the corrosion status of the pipelines of the thermal management system, facilitate inspection and maintenance, and at the same time reduce the maintenance cost is an urgent problem to be solved.

Summary of the Invention

[0005] Embodiments of this application provide a thermal management system used in batteries, batteries, and power consumption devices, which realizes inspecting or detecting the corrosion status of the pipelines of the thermal management system without causing damage to the thermal management system, facilitates inspection and maintenance, and at the same time reduces the maintenance cost.

[0006] According to a first aspect, an embodiment of the present application provides a thermal management system for use in a battery. The thermal management system includes a thermal management system main body, and the thermal management system main body includes a medium pipeline for a heat exchange medium to flow through. The medium pipeline has an inlet end and an outlet end, and a removable monitoring pipe is provided at at least one of the inlet end and the outlet end.

[0007] In the above technical solution, by providing a removable monitoring pipe at at least one of the inlet end and the outlet end of the medium pipeline of the thermal management system, in the process of the heat exchange medium circulating and flowing through the thermal management system, the heat exchange medium not only flows through the medium pipeline but also flows through the monitoring pipe. Since the monitoring pipe and the inlet end or the outlet end of the medium pipeline are removably connected, when it is necessary to inspect or detect the corrosion status of the medium pipeline of the thermal management system in this way, the monitoring pipe can be removed from the inlet end or the outlet end of the medium pipe. For example, the corrosion status inside the monitoring pipe can be detected or inspected by the pipe orifice of the monitoring pipe. By inspecting or detecting the corrosion status inside the monitoring pipe, the corrosion status of the pipeline inside the thermal management system can be obtained, thereby realizing the inspection or detection of the corrosion status of the pipeline of the thermal management system without causing damage to the thermal management system, facilitating inspection and maintenance, and reducing maintenance costs at the same time.

[0008] In some embodiments, the material of at least a part of the inner wall of the monitoring pipe is the same as the material of the medium pipeline. In this way, the flowing environment of the heat exchange medium in the monitoring pipe can be made closer to or the same as the flowing environment of the heat exchange medium in the medium pipeline of the thermal management system, so that the corrosion status in the monitoring pipe can more accurately reflect the overall corrosion status of the pipeline of the thermal management system.

[0009] In some embodiments, the monitoring pipe is inserted and connected to the medium pipeline. By inserting the monitoring pipe into the medium pipeline, the attachment and detachment of the monitoring pipe can be made easier.

[0010] In some embodiments, both axial ends of the monitoring tube respectively have a first pipe orifice and a second pipe orifice, and the inlet end or the outlet end is inserted into the monitoring tube through the first pipe orifice. By inserting the inlet end or the outlet end of the medium pipeline into the monitoring tube, the insertion operation between the monitoring tube and the medium pipeline is facilitated.

[0011] In some embodiments, a first sealing material is provided between the inner peripheral wall of the monitoring tube and the outer peripheral wall of the medium pipeline, or a first sealing material is provided between the outer peripheral wall of the monitoring tube and the inner peripheral wall of the medium pipeline. By installing a first sealing material between the monitoring tube and the medium pipeline, sealing of the fitting gap between the monitoring tube and the medium pipeline is realized, and leakage at the fitting location between the monitoring tube and the medium pipeline during the process of the heat exchange medium flowing through the monitoring tube is avoided.

[0012] In some embodiments, both axial ends of the monitoring tube respectively have a first pipe orifice and a second pipe orifice, the inlet end or the outlet end is inserted into the monitoring tube through the first pipe orifice, and the first sealing material is fixed to the inner peripheral wall of the monitoring tube and surrounds the inlet end or the outlet end. By fixing the first sealing material to the inner peripheral wall of the monitoring tube, when the inlet end or the outlet end of the medium pipeline is inserted into the monitoring tube, the first sealing material is pressed and deformed through the outer peripheral wall of the medium pipeline, so that it is easily realized to insert the inlet end or the outlet end of the medium pipeline into the monitoring tube, and at the same time, sealing of both can be easily realized.

[0013] In some embodiments, a first receiving concave groove is formed on the inner peripheral wall of the monitoring pipe. The first receiving concave groove is formed in an annular shape extending along the circumferential direction of the monitoring pipe. The first sealing material is received in the first receiving concave groove. By providing a receiving concave groove for receiving the first sealing material on the inner peripheral wall of the monitoring pipe, the attachment and fixation of the first sealing material can be facilitated, and a position restricting effect on the first sealing material can be achieved. In this way, during the process of detaching and attaching the monitoring pipe, it is possible to avoid the first sealing material from moving due to the frictional force between the medium pipeline and the first sealing material, thereby ensuring that the first sealing material is held in the set position, and thus ensuring the sealing effect of the first sealing material.

[0014] In some embodiments, the first sealing material includes a first guide portion and a first sealing portion arranged along the axial direction of the monitoring pipe. The first guide portion is located on one side adjacent to the first pipe orifice of the first sealing portion. The inner peripheral side of the first guide portion defines a first guide passage. In the insertion direction of the inlet end or the outlet end, the cross-sectional area of the first guide passage gradually decreases. The first sealing portion is abutted and fitted to the outer peripheral wall of the inlet end or the outlet end. By setting the portion of the first sealing material close to the first pipe orifice in a flare shape, during the process of inserting the inlet end or the outlet end of the medium pipeline into the first sealing material, due to the guiding action of the first guide passage, the inlet end or the outlet end of the medium pipeline can be quickly inserted into the first sealing material, reducing the insertion resistance, making the insertion operation of the medium pipeline and the monitoring pipe more labor-saving and convenient. Moreover, by making the first sealing portion of the first sealing material abut against the outer peripheral wall of the medium pipeline, the sealing effect of the first sealing material is ensured.

[0015] In some embodiments, a first sealing protrusion is formed on the outer peripheral wall of the inlet end or the outlet end, the first sealing protrusion is formed in an annular shape extending along the circumferential direction of the medium pipeline, and the first sealing protrusion abuts against the first sealing material. By providing the first sealing protrusion on the outer peripheral wall of the inlet end or the outlet end of the medium pipeline, when the inlet end or the outlet end of the medium passage is inserted into the monitoring pipe, the first sealing protrusion presses the first sealing material located in the monitoring pipe, and the outer peripheral wall of the inlet end or the outlet end of the medium passage is more closely fitted with the first sealing material fixed in the monitoring pipe, so that the sealing effect can be further improved.

[0016] In some embodiments, the heat management system further includes an external pipeline, the monitoring pipe is connected between the external pipeline and the medium pipeline to form a circulation flow path, and the monitoring pipe is removably connected to the external pipeline. By removably connecting the monitoring pipeline to the external pipeline located outside the battery of the heat management system, the entire monitoring pipe can be removed from the heat management system in this way, thereby making it easier to inspect or detect the corrosion situation in the monitoring pipe.

[0017] In some embodiments, the monitoring pipe includes a pipe body and a window cover, a monitoring window is formed on the outer peripheral wall of the pipe body, the monitoring window penetrates the inner peripheral wall of the pipe body, the window cover is covered on the monitoring window, and the window cover is removable and / or the window cover is a transparent member. By providing the monitoring window on the peripheral wall of the monitoring pipe, the path for inspecting or detecting the monitoring pipe can be increased, and the inspection or detection of the corrosion situation of the monitoring pipe is more convenient, accurate and comprehensive.

[0018] In some embodiments, the material of the pipe body is the same as the material of the medium pipeline, and / or the material of the window cover is the same as the material of the medium pipeline. In this way, the flow environment of the heat exchange medium in the monitoring pipe can be made closer to or the same as the flow environment of the heat exchange medium in the medium pipeline of the heat management system, so that the corrosion situation in the monitoring pipe can more accurately reflect the overall corrosion situation of the pipeline of the heat management system.

[0019]

[0019] In some embodiments, the inner wall surface of the window cover is installed in the same plane as the inner wall surface of the tube body. In this way, the flow environment of the heat exchange medium in the monitoring tube can be made closer to or the same as the flow environment of the heat exchange medium in the medium pipeline of the heat exchange medium, so that the corrosion situation in the monitoring tube can more accurately reflect the overall corrosion situation of the pipeline of the heat management system.

[0020] In some embodiments, the outer wall surface of the window cover is installed in the same plane as the outer wall surface of the tube body. In this way, it is possible to avoid the window cover protruding from the tube body and occupying extra space, thereby making the structure compact and avoiding the formation of a large step between the window cover and the tube body that may damage operators or other components.

[0021] In some embodiments, a third sealing material is provided between the window cover and the tube body. By installing a third sealing material between the window cover and the tube body, the fitting gap between the window cover and the tube body can be sealed, and it is possible to avoid the heat exchange medium leaking from the fitting position between the window cover and the tube body during the process of the heat exchange medium flowing through the monitoring tube.

[0022] In some embodiments, the window cover and the tube body are connected by a fastener. By using a fastener to attach and fix the window cover to the monitoring window location of the tube body, it is possible to facilitate the detachment of the window cover and ensure the connection strength between the window cover and the tube body.

[0023] In some embodiments, the monitoring window is formed as a stepped hole, and the outer peripheral wall of the window cover is formed in a stepped shape that fits the stepped hole. By installing the monitoring window as a stepped hole and setting the outer peripheral wall of the window cover in a stepped shape that fits the stepped hole, the fitting area between the window cover and the tube body can be increased, and at the same time, it is easier to attach and fix the window cover.

[0024] In some embodiments, the monitoring window includes a first hole portion and a second hole portion arranged along the wall thickness direction of the tube body. The cross-sectional area of the first hole portion is larger than that of the second hole portion, and the first hole portion is located radially outside the second hole portion. A stepped surface is formed between the first hole portion and the second hole portion. The window cover includes a cover plate and a boss. The boss is provided inside the cover plate. The cover plate is received in the first hole portion and abuts against the stepped surface. The boss is received in the second hole portion. By setting the monitoring window as a stepped hole with a larger outer side and a smaller inner side, it is easier to inspect or detect the corrosion condition inside the tube body through this monitoring window. And by setting the window cover to a structure with a boss, the portion located on the outer peripheral side of the boss of the cover plate supports and abuts against the stepped surface inside the monitoring window, improving the mounting stability of the window cover. At the same time, during the process of detaching and attaching the window cover, the stepped surface can support the cover plate, facilitating the detaching and attaching of the window cover.

[0025] In some embodiments, a third sealing material is provided between the cover plate and the stepped surface. By installing a third sealing material between the cover plate of the window cover and the stepped surface of the tube body, the fitting gap between the window cover and the tube body can be sealed, avoiding leakage of the heat exchange medium from the fitting location between the window cover and the tube body during the process of the heat exchange medium flowing through the monitoring tube. Also, by installing the third sealing material between the cover plate and the stepped surface, the stepped surface can support the third sealing material, facilitating the mounting and fixing of the third sealing material.

[0026] In some embodiments, a third receiving concave groove is formed on the stepped surface, the third receiving concave groove is formed in an annular shape extending along the circumferential direction of the first hole, and the third sealing member is received in the third receiving concave groove. By providing the third receiving concave groove for receiving the third sealing member on the stepped surface, the attachment and fixation of the third sealing member are facilitated, and the third receiving concave groove can exert a position restricting effect on the third sealing member, preventing the third sealing member from moving and affecting the sealing effect, thereby ensuring the sealing effect of the third sealing member.

[0027] In some embodiments, a first connection hole is formed in the cover plate, a second connection hole is formed in the stepped surface, and a fastener is inserted through the first connection hole and the second connection hole, thereby fixing the window cover to the pipe body. By passing the fastener through the cover plate and through the pipe body via the stepped surface, the cover plate can be reliably attached to the monitoring window location of the pipe body. Since the fastener passes through the pipe body from the stepped surface of the pipe body, the attachment of the fastener is facilitated.

[0028] In some embodiments, the second connection hole is a blind hole. By setting the second connection hole on the stepped surface of the installed pipe body as a blind hole and having the second connection hole penetrate the inner peripheral wall of the pipe body, it is possible to avoid the heat exchange medium flowing in the monitoring pipe from leaking from the fitting location between the second connection hole and the fastener, and improve the assembly sealing performance between the window cover and the pipe body.

[0029] According to a second aspect, an embodiment of the present application further provides a battery, which includes at least one battery cell and the above heat management system for regulating the temperature of the battery cell. Thereby, by adopting the above heat management system, it is possible to inspect or detect the corrosion status of the pipeline of the heat management system without causing damage to the heat management system, facilitating inspection and maintenance while reducing maintenance costs.

[0030] In some embodiments, the battery includes a housing, the battery cells and the heat management system body are both provided inside the housing, the inlet end and the outlet end are both located outside the housing, and the monitoring pipe is located outside the housing. Installing the monitoring pipe outside the housing of the battery eliminates the need to remove the housing of the battery when it is necessary to remove the monitoring pipe from the battery for corrosion inspection or detection, making it easier to inspect or detect the corrosion status of the pipeline of the heat management system.

[0031] According to a third aspect, an embodiment of the present application further provides a power consumption device, which includes the above battery, and the battery is used to provide electrical energy to the power consumption device. Thereby, by adopting the above heat management system, it is possible to inspect or detect the corrosion status of the pipeline of the heat management system without causing damage to the heat management system, making inspection and maintenance easier and reducing maintenance costs at the same time.

[0032] Additional aspects and advantages of the present application are partially shown in the following description, partially become apparent in the following description, or are understood by the implementation of the present application.

Brief Description of the Drawings

[0033] The above and / or additional aspects and advantages of the present application will become apparent from and be readily understood from the description of the embodiments in connection with the following drawings, where

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Mode for Carrying Out the Invention

[0034] Hereinafter, embodiments of the present application will be described in detail. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals from beginning to end represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are exemplary only and are merely for interpreting the present application and should not be construed as a limitation to the present application.

[0035] In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly describe the technical solutions in the embodiments of the present application while combining the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, not all of them. All other embodiments obtained by those skilled in the art on the premise of not paying creative labor based on the embodiments in the present application shall fall within the protection scope of the present application.

[0036] Unless otherwise defined, all technical and scientific terms used in this application shall have the same meaning as commonly understood by those skilled in the art to which this application pertains. In this application, the terms used in the description of the application are merely for describing specific embodiments and are not intended to limit this application. The terms "comprising" and "having" and any variations thereof in the description of the specification, claims, and drawings of this application are intended to cover non-exclusive "comprising". The terms "first", "second", etc. in the description of the specification, claims, or drawings of this application are not for describing a specific order or primary-secondary relationship, but for distinguishing different objects.

[0037] The "embodiments" referred to in this application mean that the specific features, structures, or characteristics described in connection with the embodiments may be included in at least one embodiment of this application. The appearance of this phrase at each position 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.

[0038] In the description of this application, unless otherwise specifically defined or limited, the terms "attach", "connect", "join", and "install" should be understood in a broad sense. For example, it may be a fixed connection, a removable connection, or an integral connection. It may be a direct connection or an indirect connection through an intermediate medium, or a communication inside two elements. Those skilled in the art can understand the specific meaning of these terms in this application according to specific situations.

[0039] The term "and / or" in this application is merely for describing the relationship of related objects and represents that three relationships may exist. For example, A and / or B may represent three cases: A alone, the combination of A and B, and B alone. Also, the character " / " in this application generally represents that the related objects before and after are in an "or" relationship.

[0040] In the embodiments of the present application, descriptions of the same reference signs represent the same members. For the sake of brevity, in different embodiments, detailed descriptions of the same members are omitted. It should be understood that the thicknesses, dimensions such as aspects, of various members in the embodiments of the present application shown in the drawings, and the thicknesses, dimensions such as aspects, of the entire integrated device are only exemplary descriptions and do not constitute any limitation to the present application.

[0041] "A plurality of" as used in the present application refers to two or more (including two).

[0042] In the present application, the battery 300 refers to a single physical module including one or more battery cells to provide a higher voltage and capacity. Here, the plurality of battery cells can directly form the battery 300 through series connection, parallel connection or series-parallel connection. Series-parallel connection means that both series connection and parallel connection exist in the plurality of battery cells. After the plurality of battery cells are series-connected, parallel-connected or series-parallel-connected to form a battery module, the plurality of battery modules can be series-connected, parallel-connected or series-parallel-connected to form the battery 300. For example, the battery 300 mentioned in the present application may include a battery module or a battery pack, etc.

[0043] In the present application, the battery cell may include a lithium-ion secondary battery, a lithium-ion primary battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery or a magnesium-ion battery, etc. The embodiments of the present application do not limit this. The battery cell may have a cylindrical body, a flat body, a cuboid or other shapes, etc. The embodiments of the present application do not limit this either. Generally, battery cells are divided into three types: cylindrical battery cells, square battery cells and pouch battery cells in a packaging manner. The embodiments of the present application do not limit this either.

[0044] For example, a battery cell may include a battery case, an electrode assembly, and an electrolyte. The battery case is used to accommodate the electrode assembly and the electrolyte. The electrode assembly is composed of a positive electrode plate, a negative electrode plate, and a separator. The battery cell mainly operates by the movement of metal ions between the positive electrode plate and the negative electrode plate. The positive electrode plate includes a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is coated on the surface of the positive electrode current collector. The positive electrode current collector without the positive electrode active material layer coated thereon protrudes from the positive electrode current collector coated with the positive electrode active material layer, and the positive electrode current collector without the positive electrode active material layer coated thereon is used as the positive electrode tab. Taking a lithium-ion battery as an example, the material of the positive electrode current collector may be aluminum, and the positive electrode active material may be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate, or the like.

[0045] The negative electrode plate includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode current collector. The negative electrode current collector without the negative electrode active material layer coated thereon protrudes from the negative electrode current collector coated with the negative electrode active material layer, and the negative electrode current collector without the negative electrode active material layer coated thereon is used as the negative electrode tab. The material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon or silicon, etc. To prevent fusing even when a large current flows, the number of positive electrode tabs is multiple and laminated, and the number of negative electrode tabs is multiple and laminated.

[0046] The material of the separator may be PP (polypropylene) or PE (polyethylene), etc. Note that the electrode assembly may have a wound structure or a laminated structure, and the embodiments of the present application are not limited thereto.

[0047] Some batteries 300 may include a housing 301 for packaging one or more battery cells or a plurality of battery modules. The housing 301 can avoid liquid or other foreign objects from affecting the charging or discharging of the battery cells. Of course, some batteries 300 may not include the above housing 301 and are directly installed in the battery mounting cavity of the power consumption device 1000.

[0048] To avoid the temperature of the battery cells being too high or too low, ensure the stable operation of the entire battery 300, and endow the battery 300 with a long service life, a thermal management system is adopted to regulate the temperature of the battery cells. The thermal management system has pipelines for the heat exchange medium to flow through. In the process of the heat exchange medium flowing through the pipelines of the thermal management system, the amount of heat generated by the battery cells can be carried away or the battery cells can be heated, thereby realizing temperature regulation for the battery cells.

[0049] During the long-term use process of the battery 300, improper use or other reasons may cause a liquid leakage phenomenon due to the corrosion of the pipelines of the thermal management system. Therefore, it is necessary to regularly inspect or detect the corrosion status of the pipelines of the thermal management system, thereby facilitating timely maintenance.

[0050] In the related art, during the process of inspecting or detecting the corrosion status of the pipelines of the thermal management system, it causes damage to the pipelines of the thermal management system and the pipelines need to be repaired. This not only makes it difficult to detect or inspect the corrosion status of the pipelines of the thermal management system, but also increases the maintenance cost.

[0051] Based on this, in order to facilitate the inspection and maintenance of the pipelines of the thermal management system and reduce the maintenance cost at the same time, the applicant has proposed a thermal management system for the battery 300 through intensive research. This thermal management system includes a thermal management system body and a monitoring pipe 100. The thermal management system body includes a medium pipeline 200 for the heat exchange medium to flow through. The medium pipeline 200 has an inlet end 51 and an outlet end 52, and a removable monitoring pipe 100 is provided at at least one of the inlet end 51 and the outlet end 52.

[0052] In the technical solution of this application, a removable monitoring pipe 100 is provided at at least one of the inlet end 51 and the outlet end 52 of the medium pipeline 200 of the heat management system. In the process of the heat exchange medium circulating and flowing through the heat management system, the heat exchange medium not only flows through the medium pipeline 200, but also flows through the monitoring pipe 100. Since the monitoring pipe 100 is removable, when it is necessary to inspect or detect the corrosion condition of the medium pipeline 200 of the heat management system in this way, the monitoring pipe 100 can be removed, and by inspecting or detecting the corrosion condition in the monitoring pipe 100, the corrosion condition of the pipeline in the heat management system can be obtained, thereby realizing the inspection or detection of the corrosion condition of the pipeline of the heat management system without causing damage to the heat management system, facilitating inspection and maintenance, and reducing maintenance costs at the same time.

[0053] The battery 300 disclosed in the embodiment of this application can be used in power-consuming devices 1000 such as vehicles, ships or aircraft, but is not limited thereto. The power-consuming device 1000 includes the battery 300 disclosed in this application, etc., to constitute the power supply system of the power-consuming device 1000, and the maintenance difficulty and maintenance cost of the battery 300 of the power-consuming device 1000 can be reduced.

[0054] The embodiment of this application provides a power-consuming device 1000 that uses this battery 300 as a power source. The power-consuming device 1000 may be a battery vehicle, an electric vehicle, a steamship, a spacecraft, etc., but is not limited thereto. Here, the electric vehicle may include a truck, a construction vehicle, a passenger car, etc., and the spacecraft may include an airplane, a rocket, a spaceplane, a spaceship, etc.

[0055] Hereinafter, the heat management system for the battery 300 according to the embodiment of this application will be described with reference to the drawings.

[0056] As shown in FIGS. 1 to 4, according to the first aspect, an embodiment of the present application provides a thermal management system for use in a battery 300, and this thermal management system includes a thermal management system main body and a monitoring pipe 100. The thermal management system main body includes a medium pipeline 200 for the flow of a heat exchange medium. The medium pipeline 200 has an inlet end 51 and an outlet end 52, and a removable monitoring pipe 100 is provided at at least one of the inlet end 51 and the outlet end 52.

[0057] In the process of the heat exchange medium flowing in the thermal management system, the heat exchange medium can flow into the thermal management system main body from the inlet end 51 of the medium pipeline 200. In the process of the heat exchange medium flowing through the thermal management system main body, the heat exchange medium can carry away the heat generated by the battery cells or heat the battery cells, and then flow out of the thermal management system main body from the outlet end 52 of the medium pipeline 200.

[0058] Optionally, the heat exchange medium may be water, or the heat exchange medium may be a mixture of water and ethylene glycol.

[0059] The provision of a removable monitoring pipe 100 at at least one of the inlet end 51 and the outlet end 52 may, for example, mean that a removable monitoring pipe 100 is installed at the inlet end 51 of the medium pipeline 200, or a removable monitoring pipe 100 is installed at the outlet end 52 of the medium pipeline 200, or furthermore, a removable monitoring pipe 100 is installed at the inlet end 51 of the medium pipeline 200 and a removable monitoring pipe 100 is installed at the outlet end 52 of the medium pipeline 200.

[0060] Here, when a removable monitoring pipe 100 is installed at the inlet end 51 of the medium pipeline 200, the heat exchange medium can flow through the monitoring pipe 100 and flow into the thermal management system main body from the inlet end 51 of the medium pipeline 200. In the process of the heat exchange medium flowing through the thermal management system main body, the heat exchange medium can carry away the heat generated by the battery cells or heat the battery cells, and then can flow out of the thermal management system main body from the outlet end 52 of the medium pipeline 200.

[0061] When a removable monitoring pipe 100 is installed at the outlet end 52 of the medium pipe 200, the heat exchange medium can flow into the heat management system body from the inlet end 51 of the medium pipe 200. In the process of the heat exchange medium flowing through the heat management system body, the heat exchange medium can carry away the heat generated by the battery cell or heat the battery cell, and then flow out of the heat management system body from the outlet end 52 of the medium pipe 200 and through the monitoring pipe 100.

[0062] When removable monitoring pipes 100 are installed at both the inlet end 51 and the outlet end 52 of the medium pipe 200, the heat exchange medium can flow through the monitoring pipe 100 connected to the inlet end 51, and flow into the heat management system body from the inlet end 51 of the medium pipe 200. In the process of the heat exchange medium flowing through the heat management system body, the heat exchange medium can carry away the heat generated by the battery cell or heat the battery cell, and then flow out of the heat management system body from the outlet end 52 of the medium pipe 200 and can flow through the monitoring pipe 100 connected to the outlet end 52.

[0063] The removable monitoring pipe 100 means that when the monitoring pipe 100 is removed from the inlet end 51 or the outlet end 52 of the medium pipe 200, it will not cause damage to the heat management system, and after the monitoring pipe 100 is removed, the monitoring pipe 100 can be reinstalled at the inlet end 51 or the outlet end 52 of the medium pipe 200. The removable connection method between the monitoring pipe 100 and the inlet end 51 or the outlet end 52 of the medium pipe 200 may include at least one of an insertion connection method, a locking connection method, and a fastener 60 connection method.

[0064] In the above technical solution, a removable monitoring pipe 100 is provided at at least one of the inlet end 51 and the outlet end 52 of the medium pipeline 200 of the heat management system. Thus, in the process of the heat exchange medium circulating and flowing through the heat management system, the heat exchange medium not only flows through the medium pipeline 200, but also flows through the monitoring pipe 100. Since the monitoring pipe 100 and the inlet end 51 or the outlet end 52 of the medium pipeline 200 are removably connected, when it is necessary to inspect or detect the corrosion condition of the medium pipeline 200 of the heat management system in this way, the monitoring pipe 100 can be removed from the inlet end 51 or the outlet end 52 of the medium pipe. For example, the corrosion condition inside the monitoring pipe 100 can be detected or inspected by the pipe orifice of the monitoring pipe 100. By inspecting or detecting the corrosion condition inside the monitoring pipe 100, the corrosion condition of the pipeline inside the heat management system can be obtained, thereby realizing the inspection or detection of the corrosion condition of the pipeline of the heat management system without causing damage to the heat management system, facilitating inspection and maintenance, and reducing maintenance costs at the same time.

[0065] In some embodiments, the material of at least a part of the inner wall of the monitoring pipe 100 is the same as the material of the medium pipeline 200.

[0066] The material of at least a part of the inner wall of the monitoring pipe 100 is the same as the material of the medium pipeline 200, and may include the following situations. For example, the material of a part of the inner wall of the monitoring pipe 100 is the same as the material of the medium pipeline 200. Further, for example, the material of the entire inner wall of the monitoring pipe 100 is the same as the material of the medium pipeline 200. Also, for example, the material of the entire monitoring pipe 100 is the same as the material of the medium pipeline 200.

[0067] As can be understood, in the case of the same type of heat exchange medium, there may be differences in such corrosion resistance for different materials. In the process of the heat exchange medium flowing through the monitoring pipe 100, the heat exchange medium contacts at least a part of the inner wall of the monitoring pipe 100. By making the material of at least a part of the inner wall of the monitoring pipe 100 the same as the material of the medium pipeline 200, the flowing environment of the heat exchange medium in the monitoring pipe 100 can be made closer to or the same as the flowing environment of the heat exchange medium in the medium pipeline 200, so that the corrosion situation in the monitoring pipe 100 can more accurately reflect the overall corrosion situation of the pipeline of the heat management system.

[0068] In some embodiments, referring to FIGS. 3 and 4, the monitoring pipe 100 is inserted and connected to the medium pipeline 200.

[0069] For example, the monitoring pipe 100 may be inserted into the inlet end 51 or the outlet end 52 of the medium pipeline 200, or the inlet end 51 or the outlet end 52 of the medium pipeline 200 may be inserted into the monitoring pipe 100.

[0070] By inserting the monitoring pipe 100 into the medium pipeline 200 and by inserting and removing the monitoring pipe 100, the separation and assembly of the monitoring pipe 100 and the medium pipeline 200 can be easily realized, and the attachment and detachment of the monitoring pipe 100 can be made easier.

[0071] In some embodiments, referring to FIGS. 3 and 4, both axial ends of the monitoring pipe 100 respectively have a first pipe orifice 101 and a second pipe orifice 102, and the inlet end 51 or the outlet end 52 is inserted into the monitoring pipe 100 through the first pipe orifice 101. By inserting the inlet end 51 or the outlet end 52 of the medium pipeline 200 into the monitoring pipe 100, the insertion operation between the monitoring pipe 100 and the medium pipeline 200 is facilitated.

[0072] In some embodiments, referring to FIGS. 3 and 4, a first sealing material 30 is provided between the inner peripheral wall of the monitoring pipe 100 and the outer peripheral wall of the medium pipeline 200, or a first sealing material 30 is provided between the outer peripheral wall of the monitoring pipe 100 and the inner peripheral wall of the medium pipeline 200.

[0073] For example, when inserting the inlet end 51 or the outlet end 52 of the medium pipeline 200 into the monitoring pipe 100, a first sealing material 30 may be installed between the inner peripheral wall of the monitoring pipe 100 and the outer peripheral wall of the medium pipeline 200. When inserting the monitoring pipe 100 into the inlet end 51 or the outlet end 52 of the medium pipeline 200, the first sealing material 30 may be provided between the outer peripheral wall of the monitoring wall and the inner peripheral wall of the medium pipeline 200.

[0074] Optionally, the first sealing material 30 may be a rubber sealing material or a silica gel sealing material.

[0075] By installing the first sealing material 30 between the monitoring pipe 100 and the medium pipeline 200, sealing of the fitting gap between the monitoring pipe 100 and the medium pipeline 200 is realized, and leakage at the fitting location between the monitoring pipe 100 and the medium pipeline 200 during the process of the heat exchange medium flowing through the monitoring pipe 100 is avoided.

[0076] In some embodiments, referring to FIGS. 3 and 4, both axial ends of the monitoring pipe 100 have a first pipe orifice 101 and a second pipe orifice 102 respectively. The inlet end 51 or the outlet end 52 is inserted into the monitoring pipe 100 through the first pipe orifice 101, and the first sealing material 30 is fixed to the inner peripheral wall of the monitoring pipe 100 and surrounds the inlet end 51 or the outlet end 52.

[0077] By fixing the first sealing material 30 to the inner peripheral wall of the monitoring pipe 100, when inserting the inlet end 51 or the outlet end 52 of the medium pipeline 200 into the monitoring pipe 100, the first sealing material 30 is pressed and deformed through the outer peripheral wall of the medium pipeline 200, so that inserting the inlet end 51 or the outlet end 52 of the medium pipeline 200 into the monitoring pipe 100 can be easily realized, and at the same time, sealing of both can be easily realized.

[0078] In some embodiments, referring to FIGS. 3 and 4, a first receiving concave groove 11 is formed on the inner peripheral wall of the monitoring pipe 100. The first receiving concave groove 11 is formed in an annular shape extending along the circumferential direction of the monitoring pipe 100, and the first sealing material 30 is received in the first receiving concave groove 11.

[0079] By providing a receiving concave groove for receiving the first sealing material 30 on the inner peripheral wall of the monitoring pipe 100, the attachment and fixation of the first sealing material 30 can be facilitated, and the position regulating effect on the first sealing material 30 can be achieved. In this way, in the process of detaching and attaching the monitoring pipe 100, the first sealing material 30 can be prevented from moving due to the frictional force between the medium pipeline 200 and the first sealing material 30, thereby ensuring that the first sealing material 30 is held at the set position, and thus the sealing effect of the first sealing material 30 can be guaranteed.

[0080] In some embodiments, referring to FIGS. 3 and 4, the first sealing material 30 includes a first guide portion 31 and a first sealing portion 32 arranged along the axial direction of the monitoring pipe 100. The first guide portion 31 is located on one side adjacent to the first pipe orifice 101 of the first sealing portion 32. The inner peripheral side of the first guide portion 31 defines a first guide passage 311. In the insertion direction of the inlet end 51 or the outlet end 52, the cross-sectional area of the first guide passage 311 gradually decreases. The first sealing portion 32 is abutted and fitted to the outer peripheral wall of the inlet end 51 or the outlet end 52.

[0081] By setting the portion of the first sealing material 30 close to the first pipe orifice 101 in a flare shape, in the process of inserting the inlet end 51 or the outlet end 52 of the medium pipeline 200 into the first sealing material 30, due to the guiding action of the first guide passage 311, the inlet end 51 or the outlet end 52 of the medium pipeline 200 can be quickly inserted into the first sealing material 30, the insertion resistance can be reduced, the insertion operation of the medium pipeline 200 and the monitoring pipe 100 can be further labor-saving and convenient, and by abutting the first sealing portion 32 of the first sealing material 30 against the outer peripheral wall of the medium pipeline 200, the sealing effect of the first sealing material 30 can be guaranteed.

[0082] In some embodiments, referring to FIG. 4, a first sealing protrusion 53 is formed on the outer peripheral wall of the inlet end 51 or the outlet end 52. The first sealing protrusion 53 is formed in an annular shape extending along the circumferential direction of the medium pipeline 200. The first sealing protrusion 53 abuts against the first sealing material 30.

[0083] By installing the first sealing protrusion 53 on the outer peripheral wall of the inlet end 51 or the outlet end 52 of the medium pipeline 200, when the inlet end 51 or the outlet end 52 of the medium passage is inserted into the monitoring pipe 100, the first sealing protrusion 53 presses the first sealing material 30 located in the monitoring pipe 100, and the outer peripheral wall of the inlet end 51 or the outlet end 52 of the medium passage is more closely fitted with the first sealing material 30 fixed in the monitoring pipe 100, so that the sealing effect can be further improved.

[0084] In some embodiments, referring to FIG. 3, the thermal management system further includes an external pipeline, and the monitoring pipe 100 is connected between the external pipeline and the medium pipeline 200 to form a circulation flow path, and the monitoring pipe 100 is removably connected to the external pipeline.

[0085] Here, when a removable monitoring pipe 100 is installed at the inlet end 51 of the medium pipeline 200, one end of the monitoring pipe 100 is removably connected to the inlet end 51 of the medium pipeline 200, the other end of the monitoring pipe 100 is removably connected to one end of the external pipeline, and the other end of the external pipeline is connected to the outlet end 52 of the medium pipeline 200, thereby forming a circulation flow path for the heat exchange medium.

[0086] When a removable monitoring pipe 100 is installed at the outlet end 52 of the medium pipeline 200, one end of the monitoring pipe 100 is removably connected to the outlet end 52 of the medium pipeline 200, the other end of the monitoring pipe 100 is removably connected to one end of the external pipeline, and the other end of the external pipeline is connected to the inlet end 51 of the medium pipeline 200, thereby forming a circulation flow path for the heat exchange medium.

[0087] When a removable monitoring pipe 100 is installed at both the inlet end 51 and the outlet end 52 of the media pipe 200, one end of the monitoring pipe 100 connected to the inlet end 51 is removably connected to the inlet end 51 of the media pipe 200, the other end of the monitoring pipe 100 connected to the inlet end 51 is removably connected to one end of the external pipe, one end of the monitoring pipe 100 connected to the outlet end 52 is removably connected to the outlet end 52 of the media pipe 200, and the other end of the monitoring pipe 100 connected to the outlet end 52 is removably connected to the other end of the external pipe, thereby forming a circulation flow path for the heat exchange medium.

[0088] The removable connection method between the monitoring pipe 100 and the external pipe may include at least one of an insertion connection method, a locking connection method, and a fastener 60 connection method.

[0089] By removably connecting the monitoring pipe 100 to an external pipe located outside the battery 300 of the thermal management system, the entire monitoring pipe 100 can be removed from the thermal management system in this way, thereby making it easier to inspect or detect the corrosion situation inside the monitoring pipe 100.

[0090] In some embodiments, referring to FIGS. 5 to 8, the monitoring pipe 100 includes a pipe body 10 and a window cover 20. A monitoring window 12 is formed on the outer peripheral wall of the pipe body 10. The monitoring window 12 penetrates the inner peripheral wall of the pipe body 10. The window cover 20 is covered on the monitoring window 12. The window cover 20 is removable and / or the window cover 20 is a transparent member.

[0091] The window cover 20 is removable and / or the window cover 20 is a transparent member, including the following situations. For example, the window cover 20 is removable. Further, for example, the window cover 20 is a transparent member. Also, for example, the window cover 20 is removable and the window cover 20 is a transparent member.

[0092] Here, when the window cover 20 is removable, it is necessary to inspect or detect the corrosion situation inside the monitoring pipe 100. The monitoring pipe 100 may be removed from the inlet end 51 or the outlet end 52 of the medium pipeline 200, and the window cover 20 may be removed from the monitoring window 12 of the monitoring pipe 100. In this way, the corrosion situation inside the monitoring pipe 100 can be inspected or detected by the monitoring window 12, and the corrosion situation inside the monitoring pipe 100 can also be inspected or detected by the pipe orifice of the pipe body 10. In this way, the path for inspecting or detecting the corrosion situation inside the monitoring pipe 100 can be increased, the inspection or detection of the corrosion situation of the monitoring pipe 100 can be made more accurate and comprehensive, and the inspection or detection of the corrosion situation inside the monitoring pipe 100 can be made more convenient and flexible.

[0093] When the window cover 20 is a transparent member, it is necessary to inspect or detect the corrosion situation inside the monitoring pipe 100. The monitoring pipe 100 may be removed from the inlet end 51 or the outlet end 52 of the medium pipeline 200, and the corrosion situation inside the monitoring pipe 100 can be observed through the window cover 20. The corrosion situation inside the monitoring pipe 100 can also be inspected or detected by the pipe orifice of the pipe body 10. In this way, the path for inspecting or detecting the corrosion situation inside the monitoring pipe 100 can be increased, the inspection or detection of the corrosion situation of the monitoring pipe 100 can be made more accurate and comprehensive, and the inspection or detection of the corrosion situation inside the monitoring pipe 100 can be made more convenient and flexible.

[0094] When the window cover 20 is removable and the window cover 20 is a transparent member, it is necessary to inspect or detect the corrosion condition inside the monitoring pipe 100. The monitoring pipe 100 is removed from the inlet end 51 or the outlet end 52 of the medium pipeline 200. Optionally, the window cover 20 may or may not be removed from the monitoring window 12 of the monitoring pipe 100. When the window cover 20 is removed from the monitoring window 12 of the monitoring pipe 100, the corrosion condition inside the monitoring pipe 100 can be inspected or detected by the monitoring window 12. When the window cover 20 is not removed, the corrosion condition inside the monitoring pipe 100 can be observed through the window cover 20. The corrosion condition inside the monitoring pipe 100 can also be inspected or detected by the pipe orifice of the pipe body 10. In this way, the paths for inspecting or detecting the corrosion condition inside the monitoring pipe 100 can be increased, making the inspection or detection of the corrosion condition of the monitoring pipe 100 more accurate, comprehensive, convenient, and flexible.

[0095] By installing the monitoring window 12 on the peripheral wall of the monitoring pipe 100, the paths for inspecting or detecting the monitoring pipe 100 can be increased, making the inspection or detection of the corrosion condition of the monitoring pipe 100 more convenient, accurate, and comprehensive.

[0096] Optionally, there may be one monitoring window 12, or there may be multiple monitoring windows 12, and each monitoring window 12 is covered with a window cover 20. When there are multiple monitoring windows 12, the monitoring windows 12 may be arranged at intervals along the axial direction and / or the circumferential direction of the pipe body 10. When there are multiple monitoring windows 12, the number of paths for inspecting or detecting the monitoring pipe 100 can be increased, making the inspection more convenient, flexible, accurate, and comprehensive.

[0097] In some embodiments, the material of the pipe body 10 is the same as the material of the medium pipeline 200, and / or the material of the window cover 20 is the same as the material of the medium pipeline 200.

[0098] For example, even if the material of the pipe body 10 is the same as that of the medium pipeline 200, the flow environment in the monitoring pipe 100 of the heat exchange medium can be made closer to or the same as the flow environment in the medium pipeline 200 of the heat exchange medium, so that the corrosion situation in the monitoring pipe 100 can more accurately reflect the overall corrosion situation of the pipelines in the heat management system. It is necessary to inspect or detect the corrosion situation in the monitoring pipe 100, and the corrosion situation in the pipe body 10 can be inspected or detected through the monitoring window 12 or the pipe orifice of the pipe body 10.

[0099] Furthermore, for example, even if the material of the window cover 20 is the same as that of the medium pipeline 200, the flow environment in the monitoring pipe 100 of the heat exchange medium can be made closer to or the same as the flow environment in the medium pipeline 200 of the heat exchange medium, so that the corrosion situation in the monitoring pipe 100 can more accurately reflect the overall corrosion situation of the pipelines in the heat management system. It is necessary to inspect or detect the corrosion situation in the monitoring pipe 100. The window cover 20 can be removed from the monitoring window 12, and the corrosion situation on the inner wall of the window cover 20 can be inspected or detected.

[0100] Also, for example, it may be that the material of the pipe body 10 is the same as that of the medium pipeline 200 and the material of the window cover 20 is the same as that of the medium pipeline 200. In this way, the flow environment in the monitoring pipe 100 of the heat exchange medium can be made closer to or the same as the flow environment in the medium pipeline 200 of the heat exchange medium, so that the corrosion situation in the monitoring pipe 100 can more accurately reflect the overall corrosion situation of the pipelines in the heat management system. It is necessary to inspect or detect the corrosion situation in the monitoring pipe 100. The corrosion situation in the pipe body 10 can be inspected or detected through the monitoring window 12 or the pipe orifice of the pipe body 10, and the corrosion situation on the inner wall of the window cover 20 can also be inspected or detected.

[0101] In this way, the flow environment in the monitoring pipe 100 of the heat exchange medium can be made closer to or the same as the flow environment in the medium pipeline 200 of the heat exchange medium, so that the corrosion situation in the monitoring pipe 100 can more accurately reflect the overall corrosion situation of the pipeline of the heat management system.

[0102] In some embodiments, referring to FIG. 5, the inner wall surface of the window cover 20 is installed in the same plane as the inner wall surface of the pipe body 10.

[0103] The inner wall surface of the window cover 20 refers to the wall surface of the window cover 20 facing the flow path in the monitoring pipe 100. The inner wall surface of the window cover 20 can contact the heat exchange medium. The inner wall surface of the pipe body 10 refers to the wall surface of the window cover 20 facing the flow path in the monitoring pipe 100. The inner wall surface of the pipe body 10 can contact the heat exchange medium.

[0104] The inner wall surface of the window cover 20 being installed in the same plane as the inner wall surface of the pipe body 10 may include that the inner wall surface of the window cover 20 and the inner wall surface of the pipe body 10 are completely installed in the same plane, and may also include allowing a situation where the inner wall surface of the window cover 20 and the inner wall surface of the pipe body 10 are not completely in the same plane due to manufacturing and assembly errors.

[0105] In this way, the flow environment in the monitoring pipe 100 of the heat exchange medium can be made closer to or the same as the flow environment in the medium pipeline 200 of the heat exchange medium, so that the corrosion situation in the monitoring pipe 100 can more accurately reflect the overall corrosion situation of the pipeline of the heat management system.

[0106] In some embodiments, referring to FIG. 5, the outer wall surface of the window cover 20 is installed in the same plane as the outer wall surface of the pipe body 10.

[0107] The outer wall surface of the window cover 20 refers to the wall surface of the window cover 20 exposed to the outside, and the outer wall surface of the pipe body 10 refers to the wall surface of the pipe body 10 exposed to the outside.

[0108] The outer wall surface of the window cover 20 being installed in the same plane as the outer wall surface of the pipe body 10 may include the case where the outer wall surface of the window cover 20 and the outer wall surface of the pipe body 10 are completely installed in the same plane, and may also include allowing the situation where due to manufacturing and assembly errors, the outer wall surface of the window cover 20 and the outer wall surface of the pipe body 10 are not completely in the same plane.

[0109] In this way, it is possible to avoid the window cover 20 protruding from the pipe body 10 and occupying extra space, thereby making the structure more compact and avoiding the formation of a large step between the window cover 20 and the pipe body 10 that may damage the operator or other members.

[0110] In some embodiments, referring to FIG. 5, a third sealing member 50 is provided between the window cover 20 and the pipe body 10.

[0111] Optionally, the third sealing member 50 may be a rubber sealing member or a silica gel sealing member.

[0112] By installing the third sealing member 50 between the window cover 20 and the pipe body 10, the fitting gap between the window cover 20 and the pipe body 10 can be sealed, and during the process of the heat exchange medium flowing through the monitoring pipe 100, it is possible to avoid the heat exchange medium leaking from the fitting location between the window cover 20 and the pipe body 10.

[0113] In some embodiments, referring to FIGS. 5 to 8, the window cover 20 and the pipe body 10 are connected by a fastener 60.

[0114] Optionally, the fastener 60 may be a threaded fastener 60, for example, the fastener 60 may be a screw or a bolt.

[0115] The fastener 60 can be used to attach and fix the window cover 20 to the 12 monitoring windows of the pipe body 10, making it easy to attach and detach the window cover 20 and ensuring the connection strength between the window cover 20 and the pipe body 10.

[0116] In some embodiments, referring to FIGS. 5 to 8, the monitoring window 12 is formed in a stepped hole, and the outer peripheral wall of the window cover 20 is formed in a stepped shape that conforms to the stepped hole.

[0117] The outer peripheral wall of the window cover 20 refers to the wall where the window cover 20 and the inner peripheral wall of the monitoring window 12 are fitted.

[0118] By installing the monitoring window 12 in the stepped hole and setting the outer peripheral wall of the window cover 20 in a stepped shape that conforms to the stepped hole, the fitting area between the window cover 20 and the tubular body 10 can be increased, and at the same time, the attachment and fixation of the window cover 20 can be facilitated.

[0119] In some embodiments, referring to FIGS. 5 to 8, the monitoring window 12 includes a first hole portion 121 and a second hole portion 122 arranged along the thickness direction of the tubular body 10. The cross-sectional area of the first hole portion 121 is larger than the cross-sectional area of the second hole portion 122, and the first hole portion 121 is located radially outside the second hole portion 122. A stepped surface 13 is formed between the first hole portion 121 and the second hole portion 122. The window cover 20 includes a cover plate 21 and a boss 22. The boss 22 is provided inside the cover plate 21. The cover plate 21 is received in the first hole portion 121 and the cover plate 21 abuts against the stepped surface 13. The boss 22 is received in the second hole portion 122.

[0120] The inside of the cover plate 21 refers to the side where the cover plate 21 faces the flow path inside the tubular body 10.

[0121] When the window cover 20 includes the above-mentioned cover plate 21 and boss 22, the inner wall surface of the window cover 20 refers to the wall surface of the boss 22 facing the flow path in the monitoring tube 100.

[0122] By setting the monitoring window 12 as a stepped hole with a larger outer side and a smaller inner side, it is easier to inspect or detect the corrosion status inside the pipe body 10 through this monitoring window 12. And by setting the window cover 20 to have a structure with a boss 22, the portion located on the outer peripheral side of the boss 22 of the cover plate 21 supports and abuts against the stepped surface 13 inside the monitoring window 12, improving the mounting stability of the window cover 20. At the same time, during the process of attaching and detaching the window cover 20, since the stepped surface 13 can support the cover plate 21, it facilitates the attachment and detachment of the window cover 20.

[0123] In some embodiments, referring to FIG. 5, a third sealing material 50 is provided between the cover plate 21 and the stepped surface 13.

[0124] Optionally, the third sealing material 50 may be fixed to the stepped surface 13.

[0125] By installing a third sealing material 50 between the cover plate 21 of the window cover 20 and the stepped surface 13 of the pipe body 10, the fitting gap between the window cover 20 and the pipe body 10 can be sealed, and during the process of the heat exchange medium flowing through the monitoring pipe 100, it can be avoided that the heat exchange medium leaks from the fitting location between the window cover 20 and the pipe body 10. Also, by installing the third sealing material 50 between the cover plate 21 and the stepped surface 13, the stepped surface 13 can have a supporting effect on the third sealing material 50, facilitating the attachment and fixation of the third sealing material 50.

[0126] In some embodiments, referring to FIGS. 5 to 7, a third receiving concave groove 15 is formed on the stepped surface 13. The third receiving concave groove 15 is formed in an annular shape extending along the circumferential direction of the first hole portion 121, and the third sealing material 50 is received in the third receiving concave groove 15.

[0127] By providing a third receiving concave groove 15 for receiving the third sealing material 50 in the stepped surface 13, the attachment and fixation of the third sealing material 50 are facilitated. The third receiving concave groove 15 can perform a position restricting function on the third sealing material 50, preventing the third sealing material 50 from moving and affecting the sealing effect, thereby ensuring the sealing effect of the third sealing material 50.

[0128] In some embodiments, referring to FIGS. 5 to 7, a first connection hole 211 is formed in the cover plate 21, a second connection hole 16 is formed in the stepped surface 13, and the fastener 60 is drilled through the first connection hole 211 and the second connection hole 16 to fix the window cover 20 to the pipe body 10.

[0129] By drilling the fastener 60 through the cover plate 21 and passing through the pipe body 10 via the stepped surface 13, the cover plate 21 can be securely attached to the monitoring window 12 of the pipe body 10. Since the fastener 60 passes through the pipe body 10 from the stepped surface 13 of the pipe body 10, the attachment of the fastener 60 is facilitated.

[0130] In some embodiments, referring to FIG. 5, the second connection hole 16 is a blind hole.

[0131] The second connection hole 16 is a blind hole, which means that the second connection hole 16 does not penetrate the inner wall surface of the pipe body 10.

[0132] By setting the second connection hole 16 on the stepped surface 13 of the pipe body 10 to be installed as a blind hole and the second connection hole 16 penetrating the inner peripheral wall of the pipe body 10, it is possible to avoid the heat exchange medium flowing in the monitoring pipe 100 from leaking from the fitting portion between the second connection hole 16 and the fastener 60, and improve the assembly sealing performance between the cover plate 21 and the pipe body 10.

[0133] According to a second aspect, referring to FIG. 1, the embodiment of the present application further provides a battery 300, which includes at least one battery cell and the above heat management system, and the heat management system is used to adjust the temperature of the battery cell.

[0134] Thereby, by adopting the above heat management system, it is possible to inspect or detect the corrosion status of the pipeline of the heat management system without causing damage to the heat management system, facilitating inspection and maintenance and reducing maintenance costs at the same time.

[0135] In some embodiments, referring to FIG. 1, the battery 300 includes a housing 301, both the battery cell and the heat management system body are provided in the housing 301, the inlet end 51 and the outlet end 52 of the medium pipeline 200 are both located outside the housing 301, and the monitoring pipe 100 is located outside the housing 301.

[0136] When the monitoring pipe 100 is installed outside the housing 301 of the battery 300 and it is necessary to remove the monitoring pipe 100 from the battery 300 to inspect or detect corrosion, it is not necessary to remove the housing 301 of the battery 300, making it easier to inspect or detect the corrosion status of the pipeline of the heat management system.

[0137] According to a third aspect, an embodiment of the present application further provides a power consumption device 1000, and this power consumption device 1000 includes the above battery 300, and the battery 300 is used to provide electrical energy to the power consumption device 1000.

[0138] Thereby, by adopting the above heat management system, it is possible to inspect or detect the corrosion status of the pipeline of the heat management system without causing damage to the heat management system, facilitating inspection and maintenance and reducing maintenance costs at the same time.

[0139] Optionally, as shown in FIG. 9, when the battery 300 is used in a vehicle, the battery 300 may be installed at the bottom, head or tail of the vehicle. The battery 300 may be used for power supply of the vehicle. For example, the battery 300 may be used as an operating power source of the vehicle. The vehicle may further include a controller and a motor. The controller is used to control the battery 300 to supply power to the motor, for example, for starting the vehicle, navigation, and power consumption requirements during driving.

[0140] Hereinafter, with reference to FIGS. 1 to 8, a thermal management system according to some embodiments of the present application and a battery 300 having the same will be described.

[0141] In this embodiment, the battery 300 includes a housing 301, at least one battery cell, and a thermal management system. The thermal management system includes a thermal management main body, a monitoring pipe 100, and an external pipeline. The battery cell and the thermal management system main body are both provided in the housing 301. The inlet end 51 and the outlet end 52 of the medium pipeline 200 are both located outside the housing 301. A removable monitoring pipe 100 is installed at at least one of the inlet end 51 and the outlet end 52 of the medium pipeline 200. The monitoring pipe 100 is located outside the housing 301. One end of the monitoring pipe 100 is inserted into the inlet end 51 or the outlet end 52, and the other end of the monitoring pipe 100 is inserted into the external pipeline.

[0142] The monitoring pipe 100 includes a pipe body 10, a window cover 20, a first sealing material 30, a second sealing material 40, a third sealing material 50, and a fastener 60. A monitoring window 12 is formed on the outer peripheral wall of the pipe body 10. The monitoring window 12 penetrates the inner peripheral wall of the pipe body 10. The window cover 20 is removably covered on the monitoring window 12. The pipe body 10 is a circular pipe. The window cover 20 extends in an arc shape in the circumferential direction of the pipe body 10. The inner wall surface of the window cover 20 is installed in the same plane as the inner wall surface of the pipe body 10. The outer wall surface of the window cover 20 is installed in the same plane as the outer wall surface of the pipe body 10. Here, the materials of the pipe body 10 and the window cover 20 are both the same as the material of the medium pipeline 200. The cross-sectional area of the flow path in the pipe body 10 is the same as the cross-sectional area of the flow path in the medium pipeline 200 and the cross-sectional area of the flow path in the pipe body 10 is the same as the cross-sectional area of the flow path in the medium pipeline 200.

[0143] The monitoring window 12 is formed in a stepped hole, and the outer peripheral wall of the window cover 20 is formed in a stepped shape that conforms to the stepped hole. The monitoring window 12 includes a first hole portion 121 and a second hole portion 122 arranged along the thickness direction of the tubular body 10. The first hole portion 121 is located radially outside the second hole portion 122, and a stepped surface 13 is formed between the first hole portion 121 and the second hole portion 122. The window cover 20 includes a cover plate 21 and a boss 22. The boss 22 is provided inside the cover plate 21. The cover plate 21 is received in the first hole portion 121 and abuts against the stepped surface 13, and the boss 22 is received in the second hole portion 122.

[0144] A third sealing material 50 is provided between the cover plate 21 and the stepped surface 13. A third receiving concave groove 15 is formed in the stepped surface 13, and the third sealing material 50 is received in the third receiving concave groove 15. A first connection hole 211 is formed in the cover plate 21, and a second connection hole 16 is formed in the stepped surface 13. The second connection hole 16 is a blind hole. The fastener 60 is inserted through the first connection hole 211 and the second connection hole 16 to fix the window cover 20 to the tubular body 10.

[0145] The tubular body 10 has a first pipe opening 101 and a second pipe opening 102 installed opposite to each other in the axial direction. The first receiving concave groove 11 and the second receiving concave groove 14 are formed in the inner peripheral wall of the tubular body 10. The first receiving concave groove 11 is installed adjacent to the first pipe opening 101, and the second receiving concave groove 14 is installed adjacent to the second pipe opening 102. The first sealing material 30 is received in the first receiving concave groove 11, and the second sealing material 40 is received in the first receiving concave groove 11. In the axial direction of the tubular body 10, the monitoring window 12 is located between the first receiving concave groove 11 and the second receiving concave groove 14.

[0146] The first sealing material 30 includes a first guide portion 31 and a first sealing portion 32 arranged along the axial direction of the pipe body 10. The first guide portion 31 is located on one side adjacent to the first pipe orifice 101 of the first sealing portion 32. The inner circumferential side of the first guide portion 31 defines a first guide passage 311. In the insertion direction of the inlet end 51 or the outlet end 52, the cross-sectional area of the first guide passage 311 gradually decreases. A first sealing protrusion 53 is formed on the outer peripheral wall of the inlet end 51 or the outlet end 52.

[0147] The second sealing material 40 includes a second guide portion 41 and a second sealing portion 42 arranged along the axial direction of the pipe body 10. The second guide portion 41 is located on one side adjacent to the second pipe orifice 102 of the second sealing portion 42. The inner circumferential side of the second guide portion 41 defines a second guide passage 411. In the insertion direction of the external pipeline, the cross-sectional area of the second guide passage 411 gradually decreases. A second sealing protrusion is formed on the outer peripheral wall of the external pipeline, and the second sealing protrusion is formed in an annular shape extending along the circumferential direction of the external pipeline.

[0148] When the monitoring pipe 100 is assembled between the inlet end 51 or the outlet end 52 of the medium pipeline 200 and the external pipeline, the inlet end 51 or the outlet end 52 of the medium pipeline 200 is inserted into the pipe body 10 through the first pipe orifice 101 and is quickly inserted into the inner circumferential side of the first sealing material 30 under the guidance of the first guide passage 311. The first sealing protrusion 53 of the inlet end 51 or the outlet end 52 of the medium pipeline 200 abuts against the first sealing material 30, thereby achieving a sealing effect. One end of the external pipeline is inserted into the pipe body 10 through the second pipe orifice 102 and is quickly inserted into the inner circumferential side of the second sealing material 40 under the guidance of the second guide passage 411. The second sealing protrusion at one end of the external pipeline abuts against the second sealing material 40, thereby achieving a sealing effect.

[0149] When it is necessary to inspect or detect the corrosion condition inside the monitoring pipe 100, one end of the monitoring pipe 100 can be separated from the inlet end 51 or the outlet end 52 of the medium pipeline 200, and the other end of the monitoring pipe 100 can be separated from the external pipeline. After removing the monitoring pipe 100, the window cover 20 of the monitoring pipe 100 can be removed, whereby the corrosion condition inside the monitoring pipe 100 can be detected or inspected by at least one of the monitoring window 12, the first pipe orifice 101, and the second pipe orifice 102, and the corrosion condition of the inner wall of the window cover 20 can also be detected or inspected. In this way, the corrosion condition inside the monitoring pipe 100 can be inspected through multiple paths and in multiple directions.

[0150] In the description of this specification, descriptions such as "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples" which are reference terms mean that the specific features, structures, materials, or characteristics described in this embodiment or example are included in at least one embodiment or example of this application. In this specification, the general expressions of the above terms do not necessarily refer to the same embodiment or example. And the specific features, structures, materials, or characteristics described can be combined in any one or a plurality of embodiments or examples in an appropriate manner.

[0151] Although the embodiments of this application have been shown and described, as can be understood by those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this application, and the scope of this application is defined by the claims and their equivalents.

Description of Reference Signs

[0152] 1000: Power consumption device, 300: Battery, 301: Housing, 100: Monitoring pipe, 10: Pipe body, 101: First pipe orifice, 102: Second pipe orifice, 11: First receiving concave groove, 12: Monitoring window, 121: First hole, 122: Second hole, 13: Step surface, 14: Second receiving concave groove, 15: Third receiving concave groove, 16: Second connection hole, 20: Window cover, 21: Cover plate, 211: First connection hole, 22: Boss, 30: First sealing material, 31: First guide part, 311: First guide passage, 32: First sealing part, 40: Second sealing material, 41: Second guide part, 411: Second guide passage, 42: Second sealing part, 50: Third sealing material, 60: Fastener, 200: Media pipeline, 51: Inlet end, 52: Outlet end, 53: First sealing protrusion.

Claims

1. A thermal management system used in a battery, The thermal management system main body, the thermal management system main body includes a medium pipeline for the flow of a heat exchange medium, and the medium pipeline has an inlet end and an outlet end, and the thermal management system main body; A monitoring pipe, and a thermal management system including the monitoring pipe removably provided at at least one of the inlet end and the outlet end.

2. The thermal management system according to claim 1, wherein the material of at least a part of the inner wall of the monitoring pipe is the same as the material of the medium pipeline.

3. The thermal management system according to claim 1 or 2, wherein the monitoring pipe is inserted and connected to the medium pipeline.

4. Both axial ends of the monitoring pipe have a first pipe orifice and a second pipe orifice respectively, and the inlet end or the outlet end is inserted into the monitoring pipe through the first pipe orifice. The thermal management system according to claim 3.

5. A first sealing material is provided between the inner peripheral wall of the monitoring pipe and the outer peripheral wall of the medium pipeline, or a first sealing material is provided between the outer peripheral wall of the monitoring pipe and the inner peripheral wall of the medium pipeline. The thermal management system according to claim 3.

6. Both axial ends of the monitoring pipe have a first pipe orifice and a second pipe orifice respectively, the inlet end or the outlet end is inserted into the monitoring pipe through the first pipe orifice, and the first sealing material is fixed to the inner peripheral wall of the monitoring pipe and surrounds the inlet end or the outlet end. The thermal management system according to claim 5.

7. A first receiving concave groove is formed on the inner peripheral wall of the monitoring pipe, the first receiving concave groove is formed in an annular shape extending along the circumferential direction of the monitoring pipe, and the first sealing material is received in the first receiving concave groove. The thermal management system according to claim 6.

8. The first sealing material includes a first guide portion and a first sealing portion arranged along the axial direction of the monitoring pipe. The first guide portion is located on one side adjacent to the first pipe orifice of the first sealing portion. The inner peripheral side of the first guide portion defines a first guide passage. In the insertion direction of the inlet end or the outlet end, the cross-sectional area of the first guide passage gradually decreases, and the first sealing portion abuts and fits on the outer peripheral wall of the inlet end or the outlet end. The thermal management system according to claim 6.

9. A first seal protrusion is formed on the outer peripheral wall of the inlet end or the outlet end. The first seal protrusion is formed in an annular shape extending along the circumferential direction of the medium pipeline. The first seal protrusion abuts against the first sealing material. The thermal management system according to claim 6.

10. Further including an external pipeline, the monitoring pipe is connected between the external pipeline and the medium pipeline to form a circulation flow path, and the monitoring pipe is removably connected to the external pipeline. The thermal management system according to any one of claims 1 to 9.

11. The monitoring pipe includes a pipe body and a window cover. A monitoring window is formed on the outer peripheral wall of the pipe body. The monitoring window penetrates the inner peripheral wall of the pipe body. The window cover is covered on the monitoring window. The window cover is removable and / or the window cover is a transparent member. The thermal management system according to any one of claims 1 to 10.

12. The material of the pipe body is the same as the material of the medium pipeline, and / or the material of the window cover is the same as the material of the medium pipeline. The thermal management system according to claim 11.

13. The inner wall surface of the window cover is installed in the same plane as the inner wall surface of the pipe body. The thermal management system according to claim 11.

14. The outer wall surface of the window cover is installed in the same plane as the outer wall surface of the pipe body. The thermal management system according to claim 11.

15. A third sealing material is provided between the window cover and the pipe body. The thermal management system according to claim 11.

16. The window cover and the pipe body are connected by a fastener. The thermal management system according to claim 11.

17. The monitoring window is formed in a stepped hole, and the outer peripheral wall of the window cover is formed in a stepped shape adapted to the stepped hole. The thermal management system according to claim 11.

18. The monitoring window includes a first hole portion and a second hole portion arranged along the thickness direction of the pipe body. The cross-sectional area of the first hole portion is larger than the cross-sectional area of the second hole portion and the first hole portion is located radially outside the second hole portion. A stepped surface is formed between the first hole portion and the second hole portion. The window cover includes a cover plate and a boss. The boss is provided inside the cover plate. The cover plate is received in the first hole portion and abuts against the stepped surface. The boss is received in the second hole portion. The thermal management system according to claim 17.

19. The thermal management system according to claim 18, wherein a third sealing material is provided between the cover plate and the stepped surface.

20. The thermal management system according to claim 19, wherein a third receiving concave groove is formed in the stepped surface, the third receiving concave groove is formed in an annular shape extending along the circumferential direction of the first hole portion, and the third sealing material is received in the third receiving concave groove.

21. The thermal management system according to claim 18, wherein a first connection hole is formed in the cover plate, a second connection hole is formed in the stepped surface, and a fastener is inserted through the first connection hole and the second connection hole to fix the window cover to the tube body.

22. The thermal management system according to claim 21, wherein the second connection hole is a blind hole.

23. A battery, comprising at least one battery cell and a thermal management system, wherein the thermal management system is the thermal management system according to any one of claims 1 to 22, and the thermal management system is used to adjust the temperature of the battery cell.

24. The battery according to claim 23, further comprising a housing, wherein the battery cell and the thermal management system body are both provided in the housing, the inlet end and the outlet end are both located outside the housing, and the monitoring tube is located outside the housing.

25. An electric power consuming device comprising the battery according to claim 23 or 24.

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