Battery Thermal Management Test System

Abstract

The present application relates to a battery thermal management test system, which includes: a heat source storage chamber for storing a heat exchange medium; a cold source storage chamber for storing a heat exchange medium; a plurality of first regulating pipelines, the inlets of the plurality of first regulating pipelines are respectively connected to the outlets of the heat source storage chamber, and each first regulating pipeline is respectively provided with a first regulating valve; a plurality of second regulating pipelines, the inlets of the plurality of second regulating pipelines are respectively connected to the outlets of the cold source storage chamber, and each second regulating pipeline is respectively provided with a second regulating valve; the second regulating pipelines are arranged corresponding to the first regulating pipelines; a plurality of temperature adjustment chambers, the outlets of the first regulating pipelines and the outlets of the corresponding second regulating pipelines converge and are connected to the inlet of a temperature adjustment chamber, and the outlet of the temperature adjustment chamber is used to communicate with the inlet of the heat exchange channel of the cold plate in the battery to be tested. The above-mentioned battery thermal management test system facilitates the simultaneous testing of multiple batteries to be tested under different working conditions.

Description

Technical Field

[0001] The present application relates to the technical field of battery testing, and in particular to a battery thermal management testing system. Background Art

[0002] After production, batteries usually need to undergo thermal management testing. The outflow port of the battery thermal management test system is connected to the inflow port of the heat exchange channel of the cold plate of the battery to be tested, and the return port of the battery thermal management test system is connected to the outflow port of the heat exchange channel of the cold plate of the battery to be tested to form a circulation loop. The heat exchange medium output from the outflow port of the battery thermal management test system circulates in the circulation loop, thereby performing heat exchange with the battery to be tested.

[0003] The battery thermal management test system in the related art has multiple outflow ports and multiple reflux ports, and can perform thermal management tests on multiple batteries to be tested at the same time. In order to improve the test efficiency during large-scale testing, it is sometimes necessary to test multiple batteries to be tested under different working conditions. However, the battery thermal management test system in the related art cannot perform thermal management tests on multiple batteries to be tested under different working conditions at the same time. Utility Model Content

[0004] In view of the above problems, the present application provides a battery thermal management test system, which can facilitate the simultaneous testing of multiple batteries under different operating conditions.

[0005] The present application embodiment provides a battery thermal management test system comprising:

[0006] A heat source storage chamber, used for storing heat exchange medium;

[0007] A cold source storage chamber, used for storing heat exchange medium;

[0008] A plurality of first regulating pipelines, the inlets of the plurality of first regulating pipelines are respectively connected to the outlets of the heat source storage chamber, and a first regulating valve is respectively provided on each of the first regulating pipelines;

[0009] A plurality of second regulating pipelines, the inlets of the plurality of second regulating pipelines are respectively connected to the outlets of the cold source storage chamber, and each second regulating pipeline is respectively provided with a second regulating valve; wherein the second regulating pipeline is provided corresponding to the first regulating pipeline; and

[0010] There are multiple temperature adjustment chambers, the outflow outlet of the first adjustment pipeline and the corresponding outflow outlet of the second adjustment pipeline converge and are connected to the inflow inlet of a temperature adjustment chamber, and the outflow outlet of the temperature adjustment chamber is used to communicate with the inflow inlet of the heat exchange channel of the cold plate in the battery to be tested.

[0011] When the above-mentioned battery thermal management test system is actually used, the flow rate of the heat exchange medium flowing through the corresponding first regulating pipeline is adjusted by adjusting the opening of each first regulating valve, and the flow rate of the heat exchange medium flowing through the corresponding second regulating pipeline is adjusted by adjusting the opening of each second regulating valve, so that the mixing ratio of the heat exchange medium with a higher temperature in each first regulating pipeline and the heat exchange medium with a lower temperature in each second regulating pipeline can be adjusted, and then the temperature of the mixed heat exchange medium in each temperature regulating chamber can be flexibly adjusted. In this way, each temperature regulating chamber can provide heat exchange media of different temperatures to the heat exchange channels of the cold plates of multiple batteries to be tested, which is convenient for testing multiple batteries to be tested under different working conditions at the same time.

[0012] In one embodiment, the second regulating pipeline, the first regulating pipeline, and the temperature regulating chamber are arranged in a one-to-one correspondence, so as to facilitate the adjustment of the mixing ratio of the heat exchange medium from the first regulating pipeline and the second regulating pipeline.

[0013] In one embodiment, the battery thermal management test system further includes:

[0014] A heat source cache chamber, an inlet of the heat source cache chamber is connected to an outlet of the heat source storage chamber, and an outlet of the heat source cache chamber is connected to inlets of a plurality of first regulating pipelines; and

[0015] A cold source cache chamber, the inlet of the cold source cache chamber is connected to the outlet of the cold source storage chamber, and the outlet of the cold source cache chamber is connected to the inlets of multiple second regulating pipelines.

[0016] Before the heat exchange medium in the heat source storage chamber enters the first regulating pipeline, it can be fully mixed in the heat source cache chamber, so that the heat exchange medium has better temperature uniformity in the heat source cache chamber, which is conducive to the heat exchange medium entering each first regulating pipeline to continuously maintain temperature stability. Before the heat exchange medium in the cold source storage chamber enters the second regulating pipeline, it can be fully mixed in the cold source cache chamber, so that the heat exchange medium has better temperature uniformity in the cold source cache chamber, which is conducive to the heat exchange medium entering each second regulating pipeline to continuously maintain temperature stability.

[0017] In one embodiment, the battery thermal management test system further includes:

[0018] A first power member, used for driving the heat exchange medium in the heat source storage chamber to flow into the heat source cache chamber; and

[0019] The second power member is used to drive the heat exchange medium in the cold source storage chamber to flow into the cold source buffer chamber.

[0020] By providing the first power member, this embodiment can not only allow the heat exchange medium in the heat source storage chamber to flow into the heat source buffer chamber, but also provide flow pressure on the entire flow path of the heat exchange medium.

[0021] By providing a second power member, this embodiment can not only allow the heat exchange medium in the cold source storage chamber to flow into the cold source buffer chamber, but also provide flow pressure on the entire flow path of the heat exchange medium.

[0022] In one embodiment, the battery thermal management test system further includes a plurality of first temperature detection components, and each temperature adjustment chamber is provided with a first temperature detection component.

[0023] The first temperature detection component is used to conveniently measure the temperature of the mixed heat exchange medium in the temperature control chamber in real time. If the temperature of the mixed heat exchange medium in the temperature control chamber does not meet the target temperature, the corresponding first regulating valve and the corresponding second regulating valve can be adjusted in time according to the measurement result of the first temperature detection component in the temperature control chamber to adjust the mixing ratio of the heat exchange medium in the first regulating pipeline and the heat exchange medium in the second regulating pipeline, so that the temperature of the mixed heat exchange medium in the temperature control chamber meets the target temperature.

[0024] In one embodiment, the battery thermal management test system further comprises a reflux storage chamber, wherein an inlet of the reflux storage chamber is used to be connected to an outlet of a heat exchange channel of a cold plate of a plurality of batteries to be tested;

[0025] The reflux port of the heat source storage chamber is connected to the outflow port of the reflux storage chamber; the reflux port of the cold source storage chamber is connected to the outflow port of the reflux storage chamber.

[0026] This embodiment forms a heat exchange medium flow loop by providing a reflux storage chamber between the outflow port of the heat exchange channel of the cold plate of the battery to be tested and the heat source storage chamber and the cold source storage chamber, so that the heat exchange medium in the heat source storage chamber and the cold source storage chamber can be finally replenished to the heat source storage chamber and the cold source storage chamber for recycling after flowing out.

[0027] In one embodiment, the battery thermal management test system also includes a first control valve and a second control valve; the first control valve is arranged on the pipeline connecting the heat source storage chamber and the reflux storage chamber, and the second control valve is arranged on the pipeline connecting the cold source storage chamber and the reflux storage chamber.

[0028] By providing the first control valve and the second control valve, it is convenient to flexibly replenish the heat exchange medium according to the storage amount of the heat exchange medium in the heat source storage chamber and the cold source storage chamber.

[0029] In one embodiment, the battery thermal management test system further includes a reflux buffer chamber, and an outlet of the reflux buffer chamber is connected to an inlet of the reflux storage chamber via a pipeline;

[0030] The inlet of the reflux buffer chamber is used to be connected to the outlet of the heat exchange channel of the cold plate of the multiple batteries to be tested.

[0031] The heat exchange medium in the outflow port of the heat exchange channel of the cold plate of the battery to be tested can be fully mixed in the reflux buffer chamber before entering the reflux storage chamber, so that the heat exchange medium has good temperature uniformity in the reflux buffer chamber, and the heat exchange medium entering the reflux storage chamber can continuously maintain temperature stability. In this way, when the heat exchange medium in the reflux storage chamber replenishes the heat exchange medium in the heat source storage chamber and the cold source storage chamber, it is convenient to timely and accurately adjust the temperature of the heat exchange medium in the heat source storage chamber and the cold source storage chamber according to the temperature of the replenished heat exchange medium.

[0032] In one embodiment, the battery thermal management test system also includes multiple reflux pipelines; the inlets of the multiple reflux pipelines are respectively used to connect with the outlets of the heat exchange channels of the cold plates of the multiple batteries to be tested; the outlets of the multiple reflux pipelines are respectively connected with the inlet of the reflux buffer chamber.

[0033] The heat exchange medium flowing out of the outflow outlet of the heat exchange channel of the cold plate of the battery to be tested flows through the corresponding reflux pipeline and then enters the inflow inlet of the reflux buffer chamber.

[0034] In one embodiment, the battery thermal management test system further includes:

[0035] a first cooling mechanism and a first heating mechanism, the first cooling mechanism is used to cool the heat exchange medium in the heat source storage chamber, and the first heating mechanism is used to heat the heat exchange medium in the heat source storage chamber; and / or,

[0036] The second refrigeration mechanism and the second heating mechanism, the second refrigeration mechanism is used to cool the heat exchange medium in the cold source storage chamber, and the second heating mechanism is used to heat the heat exchange medium in the cold source storage chamber.

[0037] In this embodiment, the heat exchange medium in the heat source storage chamber is cooled by the first cooling mechanism, and the heat exchange medium in the heat source storage chamber is heated by the first heating mechanism, so that the temperature of the heat exchange medium in the heat source storage chamber can be flexibly adjusted. The heat exchange medium in the cold source storage chamber is cooled by the second cooling mechanism, and the heat exchange medium in the cold source storage chamber is heated by the second heating mechanism, so that the temperature of the heat exchange medium in the cold source storage chamber can be flexibly adjusted. In this way, the temperature of the mixed heat exchange medium in the temperature adjustment chamber can be conveniently adjusted.

[0038] In one embodiment, the battery thermal management test system further includes:

[0039] a second temperature detection element, which is disposed in the heat source storage chamber and is used to detect the temperature of the heat exchange medium in the heat source storage chamber; and / or,

[0040] The third temperature detection component is arranged in the cold source storage chamber and is used to detect the temperature of the heat exchange medium in the cold source storage chamber.

[0041] The second temperature detection element facilitates real-time measurement of the temperature of the heat exchange medium in the heat source storage chamber, thereby facilitating timely adjustment of the temperature of the heat exchange medium in the heat source storage chamber according to the measurement result, so that the heat exchange medium in the heat source storage chamber meets the expected temperature.

[0042] The third temperature detection component facilitates real-time measurement of the temperature of the heat exchange medium in the cold source storage chamber, thereby facilitating timely adjustment of the temperature of the heat exchange medium in the cold source storage chamber according to the measurement result, so that the heat exchange medium in the cold source storage chamber meets the expected temperature.

[0043] In one embodiment, the battery thermal management test system further includes a plurality of first one-way valves and a plurality of second one-way valves; each first regulating pipeline is provided with a first one-way valve, and each second regulating pipeline is provided with a second one-way valve.

[0044] By arranging a first one-way valve on the first regulating pipeline, backflow in the first regulating pipeline can be prevented. By arranging a second one-way valve on the second regulating pipeline, backflow in the first regulating pipeline can be prevented.

[0045] 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

[0046] 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 drawings to represent the same components. In the drawings:

[0047] Figure 1 A schematic diagram of a test loop of a battery thermal management test system according to some embodiments of the present application.

[0048] The reference numerals in the specific implementation manner are as follows:

[0049] 110, heat source storage chamber; 120, heat source cache chamber; 130, first connecting pipeline; 131, first power component; 210, cold source storage chamber; 220, cold source cache chamber; 230, second connecting pipeline; 231, second power component; 300, temperature control chamber; 310, first regulating pipeline; 311, first regulating valve; 320, second regulating pipeline; 321, second regulating valve; 330, mixing pipeline; 340, flow supply pipeline; 410, reflux storage chamber; 411, first supplementary pipeline; 412, second supplementary pipeline; 413, first control valve; 414, second control valve; 420, reflux cache chamber; 421, third connecting pipeline; 430, reflux pipeline. DETAILED DESCRIPTION

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] 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).

[0056] 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.

[0057] 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.

[0058] 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.

[0059] After production, batteries usually need to undergo thermal management testing. The outflow port of the battery thermal management test system is connected to the inflow port of the heat exchange channel of the cold plate of the battery to be tested, and the return port of the battery thermal management test system is connected to the outflow port of the heat exchange channel of the cold plate of the battery to be tested to form a circulation loop. The heat exchange medium output from the outflow port of the battery thermal management test system circulates in the circulation loop, thereby performing heat exchange with the battery to be tested.

[0060] The battery thermal management test system in the related art has multiple outflow ports and multiple return ports, and can perform thermal management tests on multiple batteries to be tested at the same time. In order to improve the test efficiency during large-scale testing, it is sometimes necessary to test multiple batteries to be tested under different working conditions.

[0061] However, the multiple flow outlets of the battery thermal management test system in the related art can usually only output heat exchange medium of the same temperature. Therefore, the heat exchange medium of the same temperature can only be provided to the heat exchange channels of multiple cold plates of the batteries to be tested at the same time, which makes it inconvenient to test multiple batteries to be tested under different working conditions at the same time.

[0062] Based on the above considerations, the embodiment of the present application provides a battery thermal management test system, which adjusts the flow rate of the heat exchange medium flowing through the corresponding first regulating pipeline 310 by adjusting the opening of each first regulating valve 311, and adjusts the flow rate of the heat exchange medium flowing through the corresponding second regulating pipeline 320 by adjusting the opening of each second regulating valve 321, so that the mixing ratio of the heat exchange medium with a higher temperature in each first regulating pipeline 310 and the heat exchange medium with a lower temperature in each second regulating pipeline 320 can be adjusted, and then the temperature of the mixed heat exchange medium in each temperature regulating chamber 300 can be flexibly adjusted. In this way, each temperature regulating chamber 300 can provide heat exchange media of different temperatures to the heat exchange channels of the cold plates of multiple batteries to be tested, so as to facilitate the testing of multiple batteries to be tested under different working conditions at the same time.

[0063] Figure 1 A schematic diagram of a test loop of a battery thermal management test system according to some embodiments of the present application is shown. Figure 1 An embodiment of the present application provides a battery thermal management test system including: a heat source storage chamber 110, a cold source storage chamber 210, a plurality of first regulating pipelines 310, a plurality of second regulating pipelines 320 and a plurality of temperature regulating chambers 300.

[0064] The heat source storage chamber 110 is used to store heat exchange medium. The cold source storage chamber 210 is used to store heat exchange medium.

[0065] When the battery thermal management test system is actually used, the temperature of the heat exchange medium stored in the cold source storage chamber 210 is lower than the temperature of the heat exchange medium stored in the hot source storage chamber 110 .

[0066] Specifically, the temperature range of the heat exchange medium stored in the cold source storage chamber 210 and the temperature range of the heat exchange medium stored in the heat source storage chamber 110 can be set according to actual test requirements, and the embodiment of the present application does not specifically limit them.

[0067] The inlets of the plurality of first regulating pipelines 310 are respectively connected to the outlets of the heat source storage chamber 110 , and each of the first regulating pipelines 310 is provided with a first regulating valve 311 .

[0068] Specifically, the heat exchange medium in the heat source storage chamber 110 can flow into the plurality of first regulating pipelines 310. By adjusting the opening of each first regulating valve 311, the flow rate of the heat exchange medium flowing through the corresponding first regulating pipeline 310 can be adjusted respectively.

[0069] The inlets of the plurality of second regulating pipelines 320 are respectively connected to the outlets of the cold source storage chamber 210 , and each second regulating pipeline 320 is respectively provided with a second regulating valve 321 .

[0070] Specifically, the heat exchange medium in the cold source storage chamber 210 can flow into the plurality of second regulating pipelines 320. By adjusting the opening of each second regulating valve 321, the flow rate of the heat exchange medium flowing through the corresponding plurality of second regulating pipelines 320 can be adjusted respectively.

[0071] The first regulating pipeline 310 is provided correspondingly to the second regulating pipeline 320. The outflow port of the first regulating pipeline 310 and the corresponding outflow port of the second regulating pipeline 320 converge and are connected to the inflow port of a temperature regulating chamber 300, and the outflow port of the temperature regulating chamber 300 is used to communicate with the inflow port of the heat exchange channel of the cold plate in the battery to be tested.

[0072] Specifically, the battery thermal management test system further includes a plurality of flow supply pipelines 340. The plurality of temperature adjustment chambers 300 are arranged corresponding to the plurality of flow supply pipelines 340. The temperature adjustment chambers 300 are connected to the flow inlets of the heat exchange channels of the cold plates of the respective batteries to be tested through the corresponding flow supply pipelines 340.

[0073] The heat exchange medium flowing out of the first regulating pipeline 310 is mixed with the heat exchange medium flowing out of the second regulating pipeline 320 and flows into the inlet of the temperature regulating chamber 300. The mixed heat exchange medium can enter the heat exchange channel of the cold plate of the battery to be tested through the outlet of the temperature regulating chamber 300 to perform heat exchange with the battery to be tested.

[0074] When the above-mentioned battery thermal management test system is actually used, the flow rate of the heat exchange medium flowing through the corresponding first regulating pipeline 310 is adjusted by adjusting the opening of each first regulating valve 311, and the flow rate of the heat exchange medium flowing through the corresponding second regulating pipeline 320 is adjusted by adjusting the opening of each second regulating valve 321, so that the mixing ratio of the heat exchange medium with a higher temperature in each first regulating pipeline 310 and the heat exchange medium with a lower temperature in each second regulating pipeline 320 can be adjusted, and then the temperature of the mixed heat exchange medium in each temperature regulating chamber 300 can be flexibly adjusted. In this way, each temperature regulating chamber 300 can provide heat exchange media of different temperatures to the heat exchange channels of the cold plates of multiple batteries to be tested, so as to facilitate the simultaneous testing of multiple batteries to be tested under different working conditions.

[0075] Furthermore, since the battery thermal management test system includes a temperature control chamber 300, the heat exchange medium with a higher temperature from the first regulating pipeline 310 and the heat exchange medium with a lower temperature from the second regulating pipeline 320 have sufficient space to mix in the temperature control chamber 300, which is conducive to uniform mixing of the heat exchange medium. The heat exchange medium after further mixing in the temperature control chamber 300 has good temperature uniformity, which is conducive to the mixed heat exchange medium entering the heat exchange channel of the cold plate of the battery to be tested to continuously maintain temperature stability.

[0076] In one embodiment, the second regulating pipeline 320, the first regulating pipeline 310, and the temperature regulating chamber 300 are arranged in a one-to-one correspondence, so as to facilitate adjusting the mixing ratio of the heat exchange medium from the first regulating pipeline and the second regulating pipeline.

[0077] Specific as Figure 1 As shown, the battery thermal management test system also includes a plurality of mixing pipelines 330, one mixing pipeline 330 corresponds to a first regulating pipeline 310, a second regulating pipeline 320, and a temperature regulating chamber 300. The outflow outlet of the first regulating pipeline 310 and the outflow outlet of the second regulating pipeline 320 are connected to the inflow inlet of the corresponding mixing pipeline 330. The outflow outlet of the mixing pipeline 330 is connected to the inflow inlet of the corresponding temperature regulating chamber 300.

[0078] The heat exchange medium from the first regulating pipeline 310 and the heat exchange medium from the second regulating pipeline 320 first enter the mixing pipeline 330 for mixing, and then enter the corresponding temperature regulating chamber 300. In this way, the heat exchange medium and the heat exchange medium can be preliminarily mixed in the mixing pipeline 330, and then enter the temperature regulating chamber 300 for full mixing, so as to further improve the temperature uniformity of the mixed heat exchange medium in the temperature regulating chamber 300.

[0079] In other possible embodiments, the mixing pipeline 330, the first regulating pipeline 310, the second regulating pipeline 320 and the temperature regulating chamber 300 may not correspond one to one. For example, one temperature regulating chamber 300 may correspond to two mixing pipelines 330; one mixing pipeline 330 may correspond to two first regulating pipelines; and one mixing pipeline 330 may correspond to two second regulating pipelines.

[0080] Please refer to Figure 1 In one embodiment, the battery thermal management test system further includes a heat source buffer chamber 120 and a cold source buffer chamber 220 .

[0081] The inlet of the heat source buffer chamber 120 is connected to the outlet of the heat source storage chamber 110 , and the outlet of the heat source buffer chamber 120 is connected to the inlets of the plurality of first regulating pipelines 310 .

[0082] The inlet of the cold source cache chamber 220 is connected to the outlet of the cold source storage chamber 210 , and the outlet of the cold source cache chamber 220 is connected to the inlets of the plurality of second regulating pipelines 320 .

[0083] Specifically, the battery thermal management test system further includes a first connecting pipeline 130 and a second connecting pipeline 230. The inlet of the heat source cache chamber 120 is connected to the outlet of the heat source storage chamber 110 via the first connecting pipeline 130. The inlet of the cold source cache chamber 220 is connected to the outlet of the cold source storage chamber 210 via the second connecting pipeline 230.

[0084] In this embodiment, a heat source buffer chamber 120 is provided between the heat source storage chamber 110 and the first regulating pipeline 310, that is, the outflow outlet of the heat source storage chamber 110 is indirectly connected to the inflow inlet of the first regulating pipeline 310. The heat exchange medium in the heat source storage chamber 110 first enters the heat source buffer chamber 120 through the first connecting pipeline 130, and then flows into each first regulating pipeline 310 through the heat source buffer chamber 120.

[0085] In this way, the heat exchange medium in the heat source storage chamber 110 can be fully mixed in the heat source cache chamber 120 before entering the first regulating pipeline 310, so that the heat exchange medium has better temperature uniformity in the heat source cache chamber 120, which is beneficial for the heat exchange medium entering each first regulating pipeline 310 to continuously maintain temperature stability.

[0086] In this embodiment, a cold source buffer chamber 220 is provided between the cold source storage chamber 210 and the second regulating pipeline 320, that is, the outflow port of the cold source storage chamber 210 is indirectly connected to the inflow port of the second regulating pipeline 320. The heat exchange medium in the cold source storage chamber 210 first enters the cold source buffer chamber 220 through the second connecting pipeline 230, and then flows into each second regulating pipeline 320 through the cold source buffer chamber 220.

[0087] In this way, the heat exchange medium in the cold source storage chamber 210 can be fully mixed in the cold source cache chamber 220 before entering the second regulating pipeline 320, so that the heat exchange medium has better temperature uniformity in the cold source cache chamber 220, which is beneficial for the heat exchange medium entering each second regulating pipeline 320 to continuously maintain temperature stability.

[0088] Since the heat exchange medium entering each first regulating pipeline 310 can continuously maintain temperature stability, the heat exchange medium entering each second regulating pipeline 320 can continuously maintain temperature stability, thereby ensuring as much as possible that the temperature of the heat exchange medium in the first regulating pipeline 310 and the heat exchange medium in the second regulating pipeline 320 after mixing meets the target temperature.

[0089] In one embodiment, the battery thermal management test system further includes a first power member 131 and a second power member 231. The first power member 131 is disposed on the first connecting pipeline 130, and is used to drive the heat exchange medium in the heat source storage chamber 110 to flow into the heat source cache chamber 120 along the first connecting pipeline 130. The second power member 231 is disposed on the second connecting pipeline 230, and is used to drive the heat exchange medium in the cold source storage chamber 210 to flow into the cold source cache chamber 220 along the second connecting pipeline 230.

[0090] The first power member 131 is, for example, a circulation pump, or other types of power members. The second power member 231 is, for example, a circulation pump, or other types of power members.

[0091] By providing the first power member 131, this embodiment can not only allow the heat exchange medium in the heat source storage chamber 110 to flow into the heat source buffer chamber 120 along the first connecting pipeline 130, but also provide flow pressure on the entire flow path of the heat exchange medium.

[0092] By providing the second power member 231, this embodiment can not only allow the heat exchange medium in the cold source storage chamber 210 to flow into the cold source buffer chamber 220 along the second connecting pipeline 230, but also provide flow pressure on the entire flow path of the heat exchange medium.

[0093] In one embodiment, the battery thermal management test system further includes: a first cooling mechanism, a first heating mechanism, a second cooling mechanism, and a second heating mechanism.

[0094] The first cooling mechanism is used to cool the heat exchange medium in the heat source storage chamber 110 , and the first heating mechanism is used to heat the heat exchange medium in the heat source storage chamber 110 .

[0095] The second refrigeration mechanism is used to cool the heat exchange medium in the cold source storage chamber 210 , and the second heating mechanism is used to heat the heat exchange medium in the cold source storage chamber 210 .

[0096] Specifically, the first refrigeration mechanism can be a heat exchanger, such as a plate heat exchanger, a shell and tube heat exchanger, etc., and the first refrigeration mechanism can also be other types of refrigeration mechanisms. The first heating mechanism is, for example, an electric heater, etc., which can be extended into the heat source storage chamber 110 to heat the heat exchange medium, and the first heating mechanism can also be other types of heating mechanisms. The second refrigeration mechanism can be a heat exchanger, such as a plate heat exchanger, a shell and tube heat exchanger, etc., and the second refrigeration mechanism can also be other types of refrigeration mechanisms. The second heating mechanism is, for example, an electric heater, etc., which can be extended into the cold source storage chamber 210 to heat the heat exchange medium, and the second heating mechanism can also be other types of heating mechanisms.

[0097] In this embodiment, the heat exchange medium in the heat source storage chamber 110 is cooled by the first cooling mechanism, and the heat exchange medium in the heat source storage chamber 110 is heated by the first heating mechanism, so that the temperature of the heat exchange medium in the heat source storage chamber 110 can be flexibly adjusted. The heat exchange medium in the cold source storage chamber 210 is cooled by the second cooling mechanism, and the heat exchange medium in the cold source storage chamber 210 is heated by the second heating mechanism, so that the temperature of the heat exchange medium in the cold source storage chamber 210 can be flexibly adjusted. In addition, the temperature of the mixed heat exchange medium in the temperature adjustment chamber 300 can be conveniently adjusted.

[0098] In one embodiment, the battery thermal management test system further includes a plurality of first temperature detection components, and each temperature adjustment chamber 300 is provided with a first temperature detection component.

[0099] The first temperature detection element is, for example, a temperature sensor or other types of temperature detection elements. Specifically, one first temperature detection element may be disposed in one temperature adjustment chamber 300 , or multiple first temperature detection elements may be disposed in one temperature adjustment chamber 300 .

[0100] The first temperature detection component is used to conveniently measure the temperature of the mixed heat exchange medium in the temperature control chamber 300 in real time. If the temperature of the mixed heat exchange medium in the temperature control chamber 300 does not meet the target temperature, the corresponding first regulating valve 311 and the corresponding second regulating valve 321 can be adjusted in time according to the measurement result of the first temperature detection component in the temperature control chamber 300 to adjust the mixing ratio of the heat exchange medium in the first regulating pipeline and the heat exchange medium in the second regulating pipeline, so that the temperature of the mixed heat exchange medium in the temperature control chamber 300 meets the target temperature.

[0101] In one embodiment, the battery thermal management test system further includes a second temperature detection element, which is disposed in the heat source storage chamber 110 and is used to detect the temperature of the heat exchange medium in the heat source storage chamber 110 .

[0102] The second temperature detection element is, for example, a temperature sensor or other types of temperature detection elements. The third temperature detection element is, for example, a temperature sensor or other types of temperature detection elements.

[0103] The second temperature detection component facilitates real-time measurement of the temperature of the heat exchange medium in the heat source storage chamber 110, thereby facilitating timely adjustment of the temperature of the heat exchange medium in the heat source storage chamber 110 according to the measurement result, so that the heat exchange medium in the heat source storage chamber 110 meets the expected temperature.

[0104] The third temperature detection component facilitates real-time measurement of the temperature of the heat exchange medium in the cold source storage chamber 210, thereby facilitating timely adjustment of the temperature of the heat exchange medium in the cold source storage chamber 210 according to the measurement result, so that the heat exchange medium in the cold source storage chamber 210 meets the expected temperature.

[0105] In one embodiment, the battery thermal management test system further includes: a first pressure detection member, a first flow detection member, a second pressure detection member, and a second flow detection member. The first pressure detection member and the first flow detection member are respectively arranged in the first connecting pipeline 130. The second pressure detection member and the second flow detection member are respectively arranged in the second connecting pipeline 230.

[0106] Specifically, the first pressure detection member may be a pressure sensor or other types of pressure detection members. The second pressure detection member may be a pressure sensor or other types of pressure detection members. The first flow detection member may be a flow meter or other types of flow detection members. The second flow detection member may be a flow meter or other types of flow detection members.

[0107] By setting a first pressure detection component and a first flow detection component on the first connecting pipeline 130, the flow and pressure of the heat exchange medium flowing through the first connecting pipeline 130 can be measured in real time, so that the flow and pressure of the heat exchange medium in the first connecting pipeline 130 can be adjusted to meet the requirements in a timely manner according to the measurement results.

[0108] By arranging a second pressure detection component and a second flow detection component on the second connecting pipeline 230, the flow rate and pressure of the heat exchange medium flowing through the second connecting pipeline 230 can be measured in real time, so that the flow rate and pressure of the heat exchange medium in the second connecting pipeline 230 can be adjusted to meet the requirements in a timely manner according to the measurement results.

[0109] In one embodiment, the battery thermal management test system further includes a plurality of first one-way valves and a plurality of second one-way valves, each first regulating pipeline 310 is provided with a first one-way valve, and each second regulating pipeline 320 is provided with a second one-way valve.

[0110] A first one-way valve or a plurality of first one-way valves may be provided on a first regulating pipeline 310. A second one-way valve or a plurality of second one-way valves may be provided on a second regulating pipeline 320.

[0111] By providing a first check valve on the first regulating pipeline 310, backflow in the first regulating pipeline 310 can be prevented. By providing a second check valve on the second regulating pipeline 320, backflow in the first regulating pipeline 310 can be prevented.

[0112] Please refer to Figure 1 In one embodiment, the battery thermal management test system further includes a reflux storage chamber 410, the inlet of the reflux storage chamber 410 is used to connect with the outlet of the heat exchange channel of the cold plate of the plurality of batteries to be tested.

[0113] The battery thermal management test system further includes a first supplementary pipeline 411 and a second supplementary pipeline 412. The reflux port of the heat source storage chamber 110 is connected to the outflow port of the reflux storage chamber 410 via the first supplementary pipeline 411. The reflux port of the cold source storage chamber 210 is connected to the outflow port of the reflux storage chamber 410 via the second supplementary pipeline 412.

[0114] Specifically, the heat exchange medium flowing out of the outlet of the heat exchange channel of the cold plate of the plurality of batteries to be tested may flow into the reflux storage chamber 410. The heat exchange medium in the reflux storage chamber 410 may flow into the heat source storage chamber 110 through the first supplementary pipeline 411, thereby replenishing the heat exchange medium for the heat source storage chamber 110. The heat exchange medium in the reflux storage chamber 410 may flow into the cold source storage chamber 210 through the second supplementary pipeline 412, thereby replenishing the heat exchange medium for the cold source storage chamber 210.

[0115] In this embodiment, a reflux storage chamber 410 is provided between the outflow port of the heat exchange channel of the cold plate of the battery to be tested and the heat source storage chamber 110 and the cold source storage chamber 210, thereby forming a heat exchange medium flow loop, so that after the heat exchange medium in the heat source storage chamber 110 and the cold source storage chamber 210 flows out, it can eventually be replenished into the heat source storage chamber 110 and the cold source storage chamber 210 for recycling.

[0116] Please refer to Figure 1 In one embodiment, the battery thermal management test system further includes a first control valve 413 and a second control valve 414. The first control valve 413 is disposed in the first supplementary pipeline 411, and the second control valve 414 is disposed in the second supplementary pipeline 412.

[0117] When the storage amount of the heat exchange medium in the heat source storage chamber 110 is insufficient, the first control valve 413 can be opened to allow the heat exchange medium in the reflux storage chamber 410 to be replenished into the heat source storage chamber 110 through the first replenishment pipeline 411. After sufficient replenishment, the first control valve 413 can be closed.

[0118] When the storage amount of the heat exchange medium in the cold source storage chamber 210 is insufficient, the second control valve 414 can be opened to allow the heat exchange medium in the reflux storage chamber 410 to be replenished into the cold source storage chamber 210 through the first replenishment pipeline 411. After sufficient replenishment, the second control valve 414 can be closed.

[0119] By providing the first control valve 413 and the second control valve 414 , it is convenient to flexibly replenish the heat exchange medium according to the storage amount of the heat exchange medium in the heat source storage chamber 110 and the cold source storage chamber 210 .

[0120] Please refer to Figure 1In one embodiment, the battery thermal management test system further includes a reflux buffer chamber 420, and the outlet of the reflux buffer chamber 420 is connected to the inlet of the reflux storage chamber 410 through a pipeline. The inlet of the reflux buffer chamber 420 is used to connect to the outlets of the heat exchange channels of the cold plates of the multiple batteries to be tested.

[0121] Specifically, the outlet of the reflux buffer chamber 420 and the inlet of the reflux storage chamber 410 may be connected via a third connecting pipeline 421 .

[0122] In this embodiment, a reflux buffer chamber 420 is provided between the outflow of the heat exchange channel of the cold plate of the battery to be tested and the reflux storage chamber 410, that is, the outflow of the outflow of the heat exchange channel of the cold plate of the battery to be tested is indirectly connected to the inflow of the reflux storage chamber 410. The heat exchange medium in the outflow of the heat exchange channel of the cold plate of the battery to be tested first enters the reflux buffer chamber 420, and then flows into the reflux storage chamber 410 through the third connecting pipeline 421.

[0123] The heat exchange medium in the outflow port of the heat exchange channel of the cold plate of the battery to be tested can be fully mixed in the reflux buffer chamber 420 before entering the reflux storage chamber 410, so that the heat exchange medium has good temperature uniformity in the reflux buffer chamber 420, and the heat exchange medium entering the reflux storage chamber 410 can continuously maintain temperature stability. In this way, when the heat exchange medium in the reflux storage chamber 410 replenishes the heat exchange medium in the heat source storage chamber 110 and the cold source storage chamber 210, it is convenient to timely and accurately adjust the temperature of the heat exchange medium in the heat source storage chamber 110 and the cold source storage chamber 210 according to the temperature of the replenished heat exchange medium.

[0124] Please refer to Figure 1 In one embodiment, the battery thermal management test system further includes a plurality of reflux pipelines 430, the inlets of which are respectively connected to the outlets of the heat exchange channels of the cold plates of the plurality of batteries to be tested. The outlets of the plurality of reflux pipelines 430 are respectively connected to the inlets of the reflux buffer chamber 420.

[0125] Specifically, the heat exchange medium flowing out of the outlet of the heat exchange channel of the cold plate of the battery to be tested flows through the corresponding reflux pipeline 430 and then enters the inlet of the reflux buffer chamber 420 .

[0126] Please refer to Figure 1 In one embodiment, the length direction of the reflux buffer chamber 420 is along the arrangement direction of the outlets of the plurality of reflux pipes 430. And the length of the reflux buffer chamber 420 is greater than its width and height.

[0127] Since the length of the reflux buffer chamber 420 is greater than its width and height, the cross section of the reflux buffer chamber 420 perpendicular to the length direction is smaller. Since the length direction of the reflux buffer chamber 420 is along the arrangement direction of the outflow ports of the multiple reflux pipelines 430, the heat exchange medium from the outflow ports of the multiple reflux pipelines 430 can fully flow in the length direction of the reflux buffer chamber 420 when entering the reflux buffer chamber 420, which is conducive to the full and uniform mixing of the heat exchange medium from the multiple reflux pipelines 430 in the reflux buffer chamber 420, that is, it is conducive to the uniformity of the heat exchange medium in the reflux buffer chamber 420.

[0128] 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 some or all of 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 battery thermal management test system, characterized in that: The battery thermal management test system comprises: A heat source storage chamber (110) for storing a heat exchange medium; A cold source storage chamber (210) for storing a heat exchange medium; A plurality of first regulating pipelines (310), wherein the inlets of the plurality of first regulating pipelines (310) are respectively connected to the outlets of the heat source storage chamber (110), and each of the first regulating pipelines (310) is respectively provided with a first regulating valve (311); a plurality of second regulating pipelines (320), wherein the inlets of the plurality of second regulating pipelines (320) are respectively connected to the outlets of the cold source storage chamber (210), and each of the second regulating pipelines (320) is respectively provided with a second regulating valve (321); wherein the second regulating pipelines (320) are arranged corresponding to the first regulating pipelines (310); and A plurality of temperature regulating chambers (300), wherein the outflow outlet of the first regulating pipeline (310) and the outflow outlet of the corresponding second regulating pipeline (320) converge and are connected to an inflow inlet of the temperature regulating chamber (300), and the outflow outlet of the temperature regulating chamber (300) is used to communicate with the inflow inlet of the heat exchange channel of the cold plate in the battery to be tested.

2. The battery thermal management test system according to claim 1, characterized in that: The second regulating pipeline (320), the first regulating pipeline (310), and the temperature regulating chamber (300) are arranged in a one-to-one correspondence.

3. The battery thermal management test system according to claim 1, characterized in that: The battery thermal management test system also includes: a heat source cache chamber (120), wherein an inlet of the heat source cache chamber (120) is connected to an outlet of the heat source storage chamber (110), and an outlet of the heat source cache chamber (120) is connected to inlets of a plurality of the first regulating pipelines (310); and A cold source cache chamber (220), wherein the inlet of the cold source cache chamber (220) is connected to the outlet of the cold source storage chamber (210), and the outlet of the cold source cache chamber (220) is connected to the inlets of a plurality of the second regulating pipelines (320).

4. The battery thermal management test system according to claim 3, characterized in that: The battery thermal management test system also includes: A first power member (131) is used to drive the heat exchange medium in the heat source storage chamber (110) to flow into the heat source cache chamber (120); and The second power member (231) is used to drive the heat exchange medium in the cold source storage chamber (210) to flow into the cold source buffer chamber (220).

5. The battery thermal management test system according to claim 1, characterized in that: The battery thermal management test system further comprises a plurality of first temperature detection components, and each of the temperature adjustment chambers (300) is respectively provided with a first temperature detection component.

6. The battery thermal management test system according to claim 1, characterized in that: The battery thermal management test system further comprises a reflux storage chamber (410), wherein an inlet of the reflux storage chamber (410) is used to be connected to an outlet of a heat exchange channel of a cold plate of a plurality of batteries to be tested; The reflux port of the heat source storage chamber (110) is connected to the outflow port of the reflux storage chamber (410); and the reflux port of the cold source storage chamber (210) is connected to the outflow port of the reflux storage chamber (410).

7. The battery thermal management test system according to claim 6, characterized in that: The battery thermal management test system further comprises a first control valve (413) and a second control valve (414); The first control valve (413) is arranged on a pipeline connecting the heat source storage chamber (110) and the reflux storage chamber (410), and the second control valve (414) is arranged on a pipeline connecting the cold source storage chamber (210) and the reflux storage chamber (410).

8. The battery thermal management test system according to claim 6, characterized in that: The battery thermal management test system further comprises a reflux buffer chamber (420), wherein an outlet of the reflux buffer chamber (420) is connected to an inlet of the reflux storage chamber (410) via a pipeline; The inlet of the reflow buffer chamber (420) is used to be connected to the outlets of the heat exchange channels of the cold plates of the plurality of batteries to be tested.

9. The battery thermal management test system according to claim 8, characterized in that: The battery thermal management test system further comprises a plurality of return lines (430); The inlets of the multiple return pipelines (430) are respectively used to be connected to the outlets of the heat exchange channels of the cold plates of the multiple batteries to be tested; and the outlets of the multiple return pipelines (430) are respectively connected to the inlet of the return buffer chamber (420).

10. The battery thermal management test system according to claim 1, characterized in that: The battery thermal management test system also includes: a first refrigeration mechanism and a first heating mechanism, wherein the first refrigeration mechanism is used to cool the heat exchange medium in the heat source storage chamber (110), and the first heating mechanism is used to heat the heat exchange medium in the heat source storage chamber (110); and / or, A second refrigeration mechanism and a second heating mechanism, wherein the second refrigeration mechanism is used to cool the heat exchange medium in the cold source storage chamber (210), and the second heating mechanism is used to heat the heat exchange medium in the cold source storage chamber (210).

11. The battery thermal management test system according to claim 1, characterized in that: The battery thermal management test system also includes: a second temperature detection element, the second temperature detection element being arranged in the heat source storage chamber (110) and being used to detect the temperature of the heat exchange medium in the heat source storage chamber (110); and / or, A third temperature detection component, the third temperature detection component is arranged in the cold source storage chamber (210) and is used to detect the temperature of the heat exchange medium in the cold source storage chamber (210).

12. The battery thermal management test system according to claim 1, characterized in that: The battery thermal management test system further includes a plurality of first one-way valves and a plurality of second one-way valves; Each of the first regulating pipelines (310) is provided with the first one-way valve, and each of the second regulating pipelines (320) is provided with the second one-way valve.

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