Heat exchange part, heat exchange assembly, battery, vehicle and electric device

Abstract

The invention discloses a heat exchange part, a heat exchange assembly, a battery, a vehicle and an electric device. The heat exchange piece comprises a first current collector and a first heat exchange body, the first heat exchange body is provided with a first end and a second end which are oppositely arranged, at least two first heat exchange channels extending in the direction from the first end to the second end are formed in the first heat exchange body, and the first heat exchange channels are sequentially communicated; the first current collector is connected to the first end, a first inlet and a first outlet are formed in the first current collector, and the first inlet communicates with the first first heat exchange channel and is used for allowing a heat exchange medium to flow into the first first heat exchange channel; the first outlet communicates with the last first heat exchange channel and is used for allowing the heat exchange medium in the last first heat exchange channel to flow out. The heat exchange piece can improve the temperature difference of the same row of battery units.

Description

Heat exchange parts, heat exchange components, batteries, vehicles and electrical devices Technical Field

[0001] The present application relates to the technical field of battery heat exchange, and in particular to a heat exchange component, a heat exchange assembly, a battery, a vehicle, and an electrical device. Background Art

[0002] The battery includes multiple rows of battery cells and multiple heat exchange elements. The multiple rows of battery cells and the multiple heat exchange elements are arranged alternately, and a row of battery cells is provided between two adjacent heat exchange elements. The heat exchange medium flows in the heat exchange element and exchanges heat with each battery cell in the same row in turn, thereby heating or cooling the battery cells to ensure that the battery cells operate within the appropriate temperature range and ensure stable operation of the battery.

[0003] However, during actual use, there are large temperature differences among battery cells in the same row, which affects the performance of the battery.

[0004] Summary of the Invention

[0005] The purpose of the present application is to provide a heat exchange component, a heat exchange assembly, a battery, a vehicle and an electrical device, aiming to solve the technical problem of large temperature differences between battery cells in the same row.

[0006] In a first aspect, an embodiment of the present application provides a heat exchange component, comprising a first fluid collector and a first heat exchange body, the first heat exchange body being constructed with a first end and a second end relatively arranged, the first heat exchange body being constructed with at least two first heat exchange channels extending from the first end to the second end, and the first heat exchange channels being connected in sequence; the first fluid collector is connected to the first end, the first fluid collector being constructed with a first inlet and a first outlet, the first inlet being connected with the first first heat exchange channel and being used for supplying heat exchange medium to flow into the first first heat exchange channel; the first outlet being connected with the last first heat exchange channel and being used for supplying heat exchange medium in the last first heat exchange channel to flow out.

[0007] In the heat exchange element of the embodiment of the present application, when exchanging heat with a row of battery cells, a heat exchange medium flows from the first inlet of the first current collector into the first heat exchange channel, flows through each of the first heat exchange channels in sequence, exchanges heat with the row of battery cells, and finally flows out from the first outlet, thus completing the heat exchange for the row of battery cells. Since the first current collector is connected to the first end of the first heat exchange body, and the first heat exchange channel extends from the first end to the second end, the heat exchange medium flows from the first end toward the second end, then flows back toward the first end, thus flowing back and forth between the first and second ends, and finally flows out from the first end. In the process of the heat exchange medium flowing from the first end to the second end and then from the second end back to the first end, in the direction from the first end to the second end, the battery cells in the same row are subjected to heat exchange from a heat exchange medium with increasing heat exchange effect while also being subjected to heat exchange from a heat exchange medium with decreasing heat exchange effect, thereby uniformizing the heat exchange effect of the battery cells in the same row, thereby improving the temperature difference of the battery cells in the same row.

[0008] In one embodiment, the heat exchange element further includes a connecting element connected to the second end. The connecting element is provided with at least one first connecting channel. Ends of every two first heat exchange channels close to the second end are connected via a first connecting channel.

[0009] The heat exchange component of the embodiment of the present application connects the two first heat exchange channels through the first connecting channel in the connecting component to achieve the connection of the first heat exchange channels. It has a simple structure and is easy to process and manufacture.

[0010] In one embodiment, the number of the first heat exchange channels is greater than two, and at least one second communication channel is further configured in the first current collector; the ends of every two first heat exchange channels close to the first end are connected through a second communication channel.

[0011] The heat exchange component of the embodiment of the present application connects the two first heat exchange channels through the second connecting channel in the first current collector to achieve sequential connection of the first heat exchange channels. It has a simple structure and is easy to process and manufacture.

[0012] In one embodiment, the heat exchange element further includes a second current collector, which is installed at the second end and is configured with a second inlet and a second outlet; the first heat exchange body is further configured with at least two second heat exchange channels extending from the first end to the second end, and the second heat exchange channels are connected in sequence; wherein the second inlet is connected to the first second heat exchange channel and is used to supply heat exchange medium to flow into the first second heat exchange channel; the second outlet is connected to the last second heat exchange channel and is used to supply heat exchange medium in the last second heat exchange channel to flow out.

[0013] In the heat exchange component of the embodiment of the present application, two heat exchange media flow into the first inlet and the second inlet respectively. The heat exchange medium flowing in from the first inlet flows through each first heat exchange channel in sequence and finally flows out from the first outlet; the heat exchange medium flowing in from the second inlet flows through each second heat exchange channel in sequence and finally flows out from the second outlet. In this way, the batteries in the same row are subjected to heat exchange by two heat exchange media, and the heat exchange effect is better.

[0014] In one embodiment, at least one third communication channel is configured in the first current collector, and ends of every two second heat exchange channels close to the first end are connected through one third communication channel.

[0015] The heat exchange component of the embodiment of the present application utilizes the third connecting channel provided in the first current collector to achieve the connection of the second heat exchange channel, and has a simple structure and is convenient for processing and manufacturing.

[0016] In one embodiment, at least one fourth communication channel is configured in the second current collector, and ends of every two first heat exchange channels close to the second ends are connected through one fourth communication channel.

[0017] The heat exchange component of the embodiment of the present application utilizes the fourth connecting channel provided in the second current collector to achieve the connection of the first heat exchange channel. It has a simple structure and is easy to process and manufacture.

[0018] In one embodiment, the first heat exchange channels and the second heat exchange channels are alternately arranged in parallel.

[0019] In the heat exchanger of the embodiment of the present application, two heat exchangers flow alternately and in parallel in the first heat exchanger, the heat exchange medium is evenly distributed, the heat exchange effect of the battery cells in the same row is good, and it is beneficial to improve the performance of the battery.

[0020] In one embodiment, the number of first heat exchange channels is two, the number of second heat exchange channels is two, and a first cavity and a second cavity are constructed in the first current collector. The first cavity is connected to the first outlet and the corresponding first heat exchange channel; the second cavity is connected to the first inlet and is connected to another first heat exchange channel; the first cavity and the second cavity are arranged along the alternating arrangement direction of the first heat exchange channel and the second heat exchange channel; the third connecting channel is arranged around the second cavity, the second cavity is located between the two ends of the third connecting channel, one end of the third connecting channel is located between the first cavity and the second cavity, and the two ends of the third connecting channel are respectively connected to the two second heat exchange channels.

[0021] In the heat exchange component of the embodiment of the present application, the third connecting channel is arranged around the second cavity, and the flow paths of the two heat exchange media are separated, which reduces mutual influence and improves the heat exchange effect; and the structure of the first collector is simple and easy to process and manufacture.

[0022] In one embodiment, the second outlet is higher than the second inlet.

[0023] In the heat exchange element of the embodiment of the present application, the second outlet is located above the second inlet, so that the heat exchange medium flows in from a low point and then flows out from a high point, which is beneficial to the discharge of gas in the liquid heat exchange medium and is beneficial to improving the heat exchange effect.

[0024] In one embodiment, the number of the first heat exchange channels is the same as the number of the second heat exchange channels.

[0025] In the heat exchange component of the embodiment of the present application, the number of heat exchanges by the heat exchange medium with increasing heat exchange effect on the same row of battery cells is the same as the number of heat exchanges by the heat exchange medium with decreasing heat exchange effect, thereby making the comprehensive heat exchange effect on the same row of battery cells uniform and improving the temperature difference effect on the same row of battery cells better.

[0026] In one embodiment, the first current collector and the second current collector are rotationally symmetric with respect to the first heat exchange body.

[0027] The heat exchange component of the embodiment of the present application has the same heat exchange effect on the battery cells in the same row. The parts located on the left and right sides of the battery cells in the same row have the same heat exchange effect. The two adjacent parts in the same row of batteries also have similar cooling effects. In this way, the temperature difference between the battery cells in the same row can be significantly improved.

[0028] In one embodiment, the first outlet is higher than the first inlet.

[0029] In the heat exchange element of the embodiment of the present application, the first outlet is located above the first inlet, so that the heat exchange medium flows in from a low point and then flows out from a high point, which facilitates the discharge of gas in the liquid heat exchange medium and is beneficial to improving the heat exchange effect.

[0030] In the second aspect, an embodiment of the present application provides a heat exchange component, including a third fluid collector, a fourth fluid collector and a second heat exchange body, one end of the second heat exchange body is connected to the third fluid collector, and the other end of the second heat exchange body is connected to the fourth fluid collector; the second heat exchange body is constructed with a third heat exchange channel and a fourth heat exchange channel; the third fluid collector is constructed with a third inlet and a third outlet, the fourth fluid collector is constructed with a fourth inlet and a fourth outlet, the third heat exchange channel connects the third inlet and the fourth outlet; the fourth heat exchange channel connects the fourth inlet and the third outlet.

[0031] In the heat exchange element of the embodiment of the present application, during heat exchange, the first heat exchange medium flows into the first inlet of the third collector and passes through the third heat dissipation channel and finally flows out from the fourth outlet of the fourth collector. The second heat exchange medium flows into the fourth inlet of the fourth collector and passes through the fourth heat exchange channel and finally flows out from the third outlet of the third collector. Since one end of the second heat exchanger is connected to the third collector and the other end of the second heat exchanger is connected to the fourth collector, the first heat exchange medium flows from the third collector toward the fourth collector and the second heat exchange medium flows from the fourth collector toward the third collector. The flow directions of the two heat exchange media are opposite. Therefore, in the distribution direction from the third collector to the fourth collector, the battery cells in the same row are subjected to heat exchange by a heat exchange medium with increasing heat exchange effect, and at the same time, they are also subjected to heat exchange by a heat exchange medium with decreasing heat exchange effect, so that the heat exchange effect of the battery cells in the same row is uniformed, thereby improving the temperature difference of the battery cells in the same row.

[0032] In one embodiment, there are multiple third heat exchange channels, and there are multiple fourth heat exchange channels. The third heat exchange channels are connected in sequence, and the fourth heat exchange channels are connected in sequence. The third inlet is connected to the first third heat exchange channel, and the fourth outlet is connected to the last third heat exchange channel. The fourth inlet is connected to the first fourth heat exchange channel, and the third outlet is connected to the last fourth heat exchange channel.

[0033] The heat exchange element of the embodiment of the present application has a long flow distance of the heat exchange medium, a large heat exchange area, and a better heat exchange effect.

[0034] In one embodiment, the number of the third heat exchange channels is the same as the number of the fourth heat exchange channels.

[0035] In the heat exchange component of the embodiment of the present application, the number of heat exchanges by the heat exchange medium with increasing heat exchange effect on the same row of battery cells is the same as the number of heat exchanges by the heat exchange medium with decreasing heat exchange effect, thereby making the comprehensive heat exchange effect on the same row of battery cells uniform and improving the temperature difference effect on the same row of battery cells better.

[0036] In one embodiment, the third heat exchange channels and the fourth heat exchange channels are arranged alternately.

[0037] In the heat exchange element of the embodiment of the present application, the two heat exchange elements flow alternately and in parallel in the second heat exchange body, the heat exchange medium is evenly distributed, the heat exchange effect of the battery cells in the same row is good, and it is beneficial to improve the performance of the battery.

[0038] In one embodiment, the number of the third heat exchange channel is one, the number of the fourth heat exchange channel is one, and a first partition is constructed in the third current collector. The first partition is used to separate the inner cavity of the third current collector into a third cavity and a fourth cavity. The third cavity is connected to the third inlet and the third heat exchange channel, and the fourth cavity is connected to the third outlet and the fourth heat exchange channel.

[0039] The heat exchange component of the embodiment of the present application has a simple structure of the third current collector and is easy to process and manufacture.

[0040] In one embodiment, the third current collector and the fourth current collector are rotationally symmetric with respect to the second heat exchange body.

[0041] The heat exchange component of the embodiment of the present application has the same heat exchange effect on the battery cells in the same row. The parts located on the left and right sides of the battery cells in the same row have the same heat exchange effect. The two adjacent parts in the same row of batteries also have similar cooling effects. In this way, the temperature difference between the battery cells in the same row can be significantly improved.

[0042] In one embodiment, the fourth outlet is located above the third inlet; and / or the third outlet is located above the fourth inlet.

[0043] The heat exchange element of the embodiment of the present application is conducive to the discharge of gas in the liquid heat exchange medium, which is conducive to improving the heat exchange effect.

[0044] In a third aspect, an embodiment of the present application provides a heat exchange assembly, comprising the above-mentioned heat exchange element.

[0045] The heat exchange assembly of the embodiment of the present application adopts the above-mentioned heat exchange component, which can effectively improve the temperature difference between battery cells in the same row, which is beneficial to improving the performance of the battery using the heat exchange assembly.

[0046] In a fourth aspect, an embodiment of the present application provides a heat exchange assembly, comprising a first inlet pipe, a first outlet pipe and at least two of the above-mentioned heat exchange components; each first inlet is connected to the first inlet pipe, and each first outlet is connected to the first outlet pipe.

[0047] The heat exchange assembly of the embodiment of the present application adopts the above-mentioned heat exchange components, so that the heat exchange assembly 1 can improve the temperature difference between battery cells in the same row. In addition, the first inlet pipe and the first outlet pipe are used to connect the heat exchange components, which has a simple structure and is easy to process and manufacture.

[0048] In one embodiment, a plurality of heat exchange elements are arranged at intervals along a first direction; a first inlet pipe extends along the first direction and is sequentially connected to each first inlet, and a heat exchange medium in the first inlet pipe flows along the first direction; a plurality of heat exchange elements of the heat exchange assembly are divided into a first heat exchange module and a second heat exchange module that are sequentially arranged at intervals along the first direction, the heat exchange element in the first heat exchange module is a first heat exchange element, and the heat exchange element in the second heat exchange module is a second heat exchange element; a cross-sectional area of ​​a first heat exchange channel in the first heat exchange element is smaller than a cross-sectional area of ​​the first heat exchange channel in the second heat exchange element.

[0049] The heat exchange assembly of the embodiment of the present application improves the temperature difference between different rows of battery cells.

[0050] In one embodiment, the number of first heat exchange channels of the first heat exchange element is twice that of the second heat exchange element, and the cross-sectional area of ​​the first heat exchange channels of the first heat exchange element is half that of the second heat exchange element.

[0051] The heat exchange assembly of the embodiment of the present application improves the temperature difference between different rows of battery cells.

[0052] In one embodiment, the first inlet pipe is higher than the first outlet pipe.

[0053] The heat exchange assembly of the embodiment of the present application is conducive to the discharge of gas in the liquid heat exchange medium, thereby improving the heat exchange effect.

[0054] In the fifth aspect, an embodiment of the present application provides a heat exchange assembly, which includes a second inlet pipe, a second outlet pipe, an outlet pipe assembly and at least two of the above-mentioned heat exchange components; the first inlet and the third inlet are both connected to the second inlet pipe, the second inlet and the fourth inlet are both connected to the third inlet pipe, and the first outlet, the second outlet, the third outlet and the fourth outlet are all connected to the outlet pipe assembly.

[0055] In the heat exchange assembly of the embodiment of the present application, two heat exchange media with opposite flows flow in each heat exchange element, the overall heat exchange effect of the battery cells in the same row is more uniform, and the temperature difference effect of the battery cells in the same row is better. In addition, the second inlet pipe, the third inlet pipe and the outlet pipe assembly are used to connect the heat exchange elements, and the structure is simple, which is convenient for processing and manufacturing.

[0056] In one embodiment, a plurality of heat exchange elements are arranged at intervals along the second direction, and the plurality of heat exchange elements of the heat exchange assembly are divided into a third heat exchange module and a fourth heat exchange module arranged in sequence along the second direction. The heat exchange element in the third heat exchange module is the third heat exchange element; the heat exchange element in the fourth heat exchange module is the fourth heat exchange element; the third heat exchange element is the above-mentioned heat exchange element, and the fourth heat exchange element is the above-mentioned heat exchange element; the first inlet and the third inlet are connected to the second inlet pipe in sequence along the second direction, and the second inlet and the fourth inlet are connected to the third inlet pipe in sequence along the second direction.

[0057] The heat exchange assembly of the embodiment of the present application has a simple pipeline layout and is easy to process and manufacture.

[0058] In one embodiment, the heat exchange medium in the second inlet pipe flows along the second direction, and the cross-sectional area of ​​the first heat exchange channel is smaller than the cross-sectional area of ​​the third heat exchange channel.

[0059] The heat exchange assembly of the embodiment of the present application improves the temperature difference between different rows of battery cells.

[0060] In one embodiment, the length of the first heat exchange channel is equal to that of the third heat exchange channel, the number of the first heat exchange channels is twice that of the third heat exchange channels, and the cross-sectional area of ​​the first heat exchange channel is half that of the third heat exchange channel.

[0061] The heat exchange assembly of the embodiment of the present application effectively improves the temperature difference between different rows of battery cells.

[0062] In one embodiment, the heat exchange medium in the third inlet pipe flows along the second direction, and the cross-sectional area of ​​the second heat exchange channel is smaller than the cross-sectional area of ​​the fourth heat exchange channel.

[0063] The heat exchange assembly of the embodiment of the present application improves the temperature difference between different rows of battery cells.

[0064] In one embodiment, the length of the second heat exchange channel is equal to that of the fourth heat exchange channel, the number of the second heat exchange channels is twice that of the fourth heat exchange channels, and the cross-sectional area of ​​the second heat exchange channel is half that of the fourth heat exchange channel.

[0065] The heat exchange assembly of the embodiment of the present application effectively improves the temperature difference between different rows of battery cells.

[0066] In one embodiment, the outlet pipe assembly includes a second outlet pipe and a third outlet pipe;

[0067] The first outlet and the third outlet are both connected to the second outlet pipe, and the second outlet and the fourth outlet are both connected to the third outlet pipe; the second outlet pipe and the second inlet pipe are located on the same side of the heat exchange component, and the third outlet pipe and the third inlet pipe are located on the other side of the heat exchange component.

[0068] The heat exchange component of the embodiment of the present application has a simple pipeline layout. In addition, the inlet of the third heat exchange component and the outlet of the fourth heat exchange component can be cleverly connected to each other, and the outlet of the third heat exchange component can be cleverly connected to the outlet on the fourth heat exchange component. The structure is clever and simple.

[0069] In one embodiment, the first outlet pipe, the second inlet pipe, the first outlet pipe and the second inlet pipe are alternately arranged in sequence on opposite sides of the heat exchange component along the height direction of the second heat exchange body.

[0070] The heat exchange assembly of the embodiment of the present application has a simple pipeline layout and a compact structure, which is beneficial to improving the energy density of the battery. It can also cleverly connect the third heat exchange component and the fourth heat exchange component to achieve heat exchange of the battery unit.

[0071] In one embodiment, the flow direction of the heat exchange medium in the second inlet pipe is opposite to the flow direction of the heat exchange medium in the third inlet pipe.

[0072] The heat exchange assembly of the embodiment of the present application effectively improves the temperature difference between different rows of battery cells.

[0073] In a sixth aspect, an embodiment of the present application provides a battery comprising the above-mentioned heat exchange assembly.

[0074] The battery of the embodiment of the present application adopts the above-mentioned heat exchange component, the temperature difference between the battery cells in the same row is small, and the battery performance is good.

[0075] In a seventh aspect, an embodiment of the present application provides a vehicle comprising the above-mentioned battery.

[0076] The vehicle of the embodiment of the present application uses the above-mentioned battery, which has good performance and is also beneficial to improving the performance of the vehicle.

[0077] In an eighth aspect, an embodiment of the present application provides an electrical device comprising the above-mentioned battery.

[0078] The electrical device of the embodiment of the present application uses the above-mentioned battery, and the battery has good performance, which is also beneficial to improving the performance of the electrical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0080] FIG1 is a schematic structural diagram of a vehicle provided in one embodiment of the present application.

[0081] FIG2 is a schematic diagram of the exploded structure of a battery provided in one embodiment of the present application.

[0082] FIG3 is a schematic diagram of the exploded structure of a battery cell provided in one embodiment of the present application.

[0083] FIG4 is a schematic structural diagram of a heat exchange assembly provided in one embodiment of the present application from one perspective.

[0084] FIG5 is a schematic structural diagram of the heat exchange assembly shown in FIG4 from another perspective.

[0085] FIG6 is a cross-sectional view taken along line AA in FIG5 .

[0086] FIG7 is a cross-sectional view along line BB in FIG5 .

[0087] FIG8 is a schematic structural diagram of a heat exchange assembly provided in one embodiment of the present application from one perspective.

[0088] FIG9 is a schematic structural diagram of the heat exchange assembly shown in FIG8 from another perspective.

[0089] FIG10 is a cross-sectional view taken along line CC in FIG9 .

[0090] FIG11 is a cross-sectional view taken along line DD in FIG9 .

[0091] FIG12 is a partial enlarged view of the first current collector shown in FIG10 .

[0092] FIG13 is a partial enlarged view of the second current collector shown in FIG10 .

[0093] FIG14 is a partial enlarged view of the third current collector shown in FIG11 .

[0094] FIG15 is a partial enlarged view of the third current collector shown in FIG11 .

[0095] FIG16 is a schematic structural diagram of the second inlet pipe, the second outlet pipe, the first current collector and the third current collector shown in FIG8 assembled together.

[0096] FIG17 is a partial enlarged view of point E in FIG16 .

[0097] FIG18 is a partial enlarged view of point F in FIG16 .

[0098] FIG19 is a schematic structural diagram of the first heat exchanger (second heat exchanger) provided in one embodiment of the present application.

[0099] FIG20 is a partial enlarged view of point G in FIG19 .

[0100] Among them, the reference numerals in the figures are:

[0101] 1000, vehicle; 1100, battery; 1200, controller; 1300, motor; 10, housing; 11, first part; 12, second part; 20, battery cell; 21, end cap; 22, housing; 23, electrode assembly;

[0102] 1. Heat exchange components;

[0103] 1001, first heat exchange module; 1002, second heat exchange module; 1003, third heat exchange module; 1004, fourth heat exchange module;

[0104] 100a, first heat exchange element; 100b, second heat exchange element; 100c, third heat exchange element; 100d, fourth heat exchange element; 100, heat exchange element;

[0105] 110, first current collector; 1101, first inlet; 1102, first outlet; 1103, second connecting channel; 1104, third connecting channel; 1105, first cavity; 1106, second cavity; 1107, second separator; 1108, fifth cavity; 1109, sixth cavity; 1110, fourth separator; 1111, seventh cavity; 1112, eighth cavity; 1113, fifth separator; 1114, enclosure; 1115, ninth cavity;

[0106] 120, first heat exchange element; 121, first end; 122, second end; 123, first heat exchange channel; 124, second heat exchange channel; 125, heat exchange sub-channel; 126, partition plate; 127, protrusion;

[0107] 130, connecting piece; 131, first connecting channel; 132, third partition;

[0108] 140, second current collector; 141, second inlet; 142, second outlet; 143, fourth communication channel;

[0109] 210, third current collector; 211, third inlet; 212, third outlet; 213, first separator; 214, third cavity; 215, fourth cavity;

[0110] 220, fourth current collector; 221, fourth inlet; 222, fourth outlet;

[0111] 230, second heat exchange body; 231, third heat exchange channel; 232, fourth heat exchange channel;

[0112] 310, first inlet pipe; 320, first outlet pipe;

[0113] 410, second inlet pipe; 420, third inlet pipe; 430, outlet pipe assembly; 431, second outlet pipe; 432, third outlet pipe. DETAILED DESCRIPTION

[0114] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0115] In the description of this application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0116] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0117] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0118] In the description of this application, it should be noted that the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0119] It should also be noted that, in the embodiments of the present application, the same figure mark represents the same component or the same part. For the same parts in the embodiments of the present application, the figure may only mark one of the parts or components as an example. It should be understood that the figure mark also applies to other identical parts or components.

[0120] In this application, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0121] In this application, for the convenience of description, the Z-axis in the accompanying drawings represents the up and down direction, the positive direction of the Z-axis represents up, and the negative direction of the Z-axis represents down; the Y-axis in the accompanying drawings represents the front and back direction, the positive direction of the Y-axis represents back, and the negative direction of the Y-axis represents front; the X-axis in the accompanying drawings represents the left and right direction, the positive direction of the X-axis represents right, and the negative direction of the X-axis represents left.

[0122] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0123] A battery consists of multiple rows of battery cells and multiple heat exchange elements, which are arranged alternately, with a row of battery cells positioned between two adjacent heat exchange elements. A heat exchange medium flows through the heat exchange elements and sequentially exchanges heat with each battery cell in the same row, heating or cooling the battery cells to ensure they operate within an appropriate temperature range and stable battery operation. However, in actual use, significant temperature differences can occur within the same row of battery cells, affecting battery performance.

[0124] The applicant found that one of the main reasons for the temperature difference in the same row of battery cells is that: the heat exchange element has a first end and a second end arranged opposite to each other, and a heat exchange channel extending from the first end to the second end is provided in the heat exchange element; during heat exchange, the heat exchange medium flows into the first end, flows into the heat exchange channel, exchanges heat with the battery cells, and finally flows out from the second end; and in the flow direction of the heat exchange medium, the heat exchange effect between the heat exchange medium and the battery cells becomes worse and worse, resulting in the heat exchange effect of the part arranged near the first end in the same row of battery cells being better than the part arranged near the second current collector, resulting in a large temperature difference in the same row of battery cells, which in turn affects the performance of the battery.

[0125] It should be explained here that when the temperature of the heat exchange medium flowing into the first current collector is lower than the temperature of the battery cell, the heat exchange medium gradually absorbs heat from the battery cell during the process of flowing from the first end to the second end, and the temperature of the heat exchange medium becomes higher and higher. The temperature of the heat exchange medium that exchanges heat with the portion of the battery cell in the same row near the first end is low, the heat exchange effect is good, the cooling effect is good, and the temperature is low; while the temperature of the heat exchange medium that exchanges heat with the portion of the battery cell in the same row near the second end is high, the heat exchange effect is poor, the cooling effect is relatively poor, and the temperature is high; similarly, when the temperature of the heat exchange medium that flows into the heat exchange plate is higher than the temperature of the battery cell, the heat exchange medium gradually releases heat to the battery cell during the process of flowing from the first end to the second end, and the temperature of the heat exchange medium gradually decreases. The temperature of the heat exchange medium that exchanges heat with the portion of the battery cell in the same row near the first end is high, the heat exchange effect is good, the heating effect is good, and the temperature is high; while the temperature of the heat exchange medium that exchanges heat with the portion of the battery cell in the same row near the second end is low, the heat exchange effect is poor, the heating effect is relatively poor, and the temperature is low. This leads to a large temperature difference between the battery cells in the same row.

[0126] In order to reduce the temperature difference between battery cells in the same row of battery cells, the applicant has designed a heat exchange element after in-depth research. The heat exchange element has heat exchange media flowing in opposite directions. Then, for the same row of battery cells, in the distribution direction from one end of the heat exchange element to the other end, the battery cells are subjected to heat exchange by a heat exchange medium with increasing heat exchange effect, and at the same time, they are also subjected to heat exchange by a heat exchange medium with decreasing heat exchange effect, thereby making the heat exchange effect of the battery cells in the same row uniform, thereby improving the temperature difference of the battery cells in the same row.

[0127] The heat exchange elements, heat exchange assemblies, batteries, and electrical devices using batteries as power sources disclosed in the embodiments of the present application may include, but are not limited to, mobile phones, tablets, laptop computers, electric toys, power tools, battery-powered vehicles, electric vehicles, ships, spacecraft, and the like. Electric toys may include fixed or mobile electric toys, such as game consoles, electric vehicle toys, electric ship toys, and electric airplane toys, and spacecraft may include airplanes, rockets, space shuttles, and spacecraft, among others.

[0128] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0129] Please refer to Figure 1, which is a schematic structural diagram of a vehicle 1000 provided in some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 1100 is provided inside the vehicle 1000, and the battery 1100 can be provided at the bottom, head or tail of the vehicle 1000. The battery 1100 can be used to power the vehicle 1000. For example, the battery 1100 can serve as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 1200 and a motor 1300. The controller 1200 is used to control the battery 1100 to power the motor 1300, for example, for starting, navigating and driving the vehicle 1000.

[0130] In some embodiments of the present application, the battery 1100 can serve not only as an operating power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0131] Referring to Figure 2 , as an embodiment of a battery 1100 , battery 1100 includes a housing 10 and battery cells, with the battery cells being housed within the housing 10 . The battery housing 10 is used to provide a storage space for the battery cells and can have various structures. In some embodiments, the battery housing 10 can include a first portion 11 and a second portion 12 , which overlap with each other and together define a storage space for the battery cells. The second portion 12 can be a hollow structure with one end open, and the first portion 11 can be a plate-like structure, overlapping the open side of the second portion 12 so that the first portion 11 and the second portion 12 together define a storage space. Alternatively, the first portion 11 and the second portion 12 can each be a hollow structure with one end open, with the open side of the first portion 11 overlapping the open side of the second portion 12. Of course, the battery housing 10 formed by the first portion 11 and the second portion 12 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0132] In battery 1100, there may be multiple battery cells, which may be connected in series, in parallel, or in a hybrid configuration. A hybrid configuration refers to multiple battery cells connected in both series and parallel. Specifically, a battery cell may be a battery cell 20 or a battery module. A battery module is a modular component formed by assembling multiple battery cells 20.

[0133] In one embodiment, multiple battery cells 20 may be directly connected in series, parallel, or hybrid, and the entire battery cell 20 may then be housed within the housing 10. Alternatively, the battery 1100 may be constructed by first connecting multiple battery cells 20 in series, parallel, or hybrid to form a battery module, which is then connected in series, parallel, or hybrid to form a complete battery module, and then housed within the housing 10. The battery 1100 may also include other structures, such as a busbar assembly for electrically connecting the multiple battery cells 20.

[0134] Each battery cell 20 may be a secondary battery or a primary battery, and may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0135] As another embodiment of the battery 1100 , the battery 1100 may not include the housing 10 , but may be assembled into an electrical device by electrically connecting a plurality of battery cells 20 and forming a whole with necessary fixing structures.

[0136] Please refer to Figure 3, which is a schematic diagram of the exploded structure of a battery cell 20 provided in some embodiments of the present application. A battery cell 20 is the smallest unit that makes up a battery. As shown in Figure 3, a battery cell 20 includes an end cap 21, a housing 22, an electrode assembly 23, and other functional components.

[0137] The end cap 21 is a component that covers the opening of the outer shell 22 to isolate the internal environment of the battery cell 20 from the external environment. Without limitation, the shape of the end cap 21 can be adapted to the shape of the outer shell 22 to match the outer shell 22. Optionally, the end cap 21 can be made of a material with a certain hardness and strength (such as an aluminum alloy). This makes the end cap 21 less likely to deform when subjected to compression or collision, allowing the battery cell 20 to have higher structural strength and improved safety performance. Functional components such as electrode terminals can be provided on the end cap 21. The electrode terminals can be used to electrically connect to the electrode assembly 23 for outputting or inputting electrical energy into or out of the battery cell 20. In some embodiments, the end cap 21 can also be provided with a pressure relief mechanism for relieving internal pressure when the internal pressure or temperature of the battery cell 20 reaches a threshold. The end cap 21 can also be made of a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiments of the present application are not particularly limited in this regard. In some embodiments, an insulating member may be provided inside the end cap 21 to isolate the electrical connection components in the housing 22 from the end cap 21 to reduce the risk of short circuit. For example, the insulating member may be made of plastic, rubber, or the like.

[0138] The outer shell 22 is a component that cooperates with the end cap 21 to form the internal environment of the battery cell 20. This internal environment can be used to accommodate the electrode assembly 23, electrolyte, and other components. The outer shell 22 and the end cap 21 can be separate components. An opening can be provided in the outer shell 22, and the end cap 21 is placed over the opening to form the internal environment of the battery cell 20. Alternatively, the end cap 21 and the outer shell 22 can be integrated. Specifically, the end cap 21 and the outer shell 22 can form a common connection surface before other components are inserted into the outer shell. When the interior of the outer shell 22 needs to be enclosed, the end cap 21 is placed over the outer shell 22. The outer shell 22 can have a variety of shapes and sizes, such as a rectangular parallelepiped, a cylindrical shape, a hexagonal prism, etc. Specifically, the shape of the outer shell 22 can be determined based on the specific shape and size of the electrode assembly 23. The outer shell 22 can be made of a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this embodiment of the present application does not impose any particular limitations on this.

[0139] The electrode assembly 23 is a component in the battery cell 20 where electrochemical reactions occur. One or more electrode assemblies 23 may be contained in the housing 22. The electrode assembly 23 is mainly formed by winding or stacking positive and negative electrode sheets. The parts of the positive and negative electrode sheets with active materials constitute the main body of the electrode assembly 23, and the parts of the positive and negative electrode sheets without active materials each constitute a tab. The positive and negative electrode tabs may be located together at one end of the main body or respectively at both ends of the main body. During the charge and discharge process of the battery, the positive electrode active material and the negative electrode active material react with the electrolyte, and the tabs connect the electrode terminals to form a current loop.

[0140] As shown in Figures 4, 5 and 6, in one embodiment of the present application, a heat exchange element 100 is provided, including a first fluid collector 110 and a first heat exchange body 120, the first heat exchange body 120 is constructed with a first end 121 and a second end 122 arranged opposite to each other, at least two first heat exchange channels 123 are constructed in the first heat exchange body 120, the first heat exchange channels 123 extend from the first end 121 to the second end 122, and the first heat exchange channels 123 are connected in sequence; the first fluid collector 110 is connected to the first end 121, and a first inlet 1101 and a first outlet 1102 are constructed in the first fluid collector 110, the first inlet 1101 is connected to the first first heat exchange channel 123, and the first inlet 1101 is used to supply heat exchange medium to flow into the first first heat exchange channel 123; the first outlet 1102 is connected to the last first heat exchange channel 123, and the first outlet 1102 is used to allow the heat exchange medium in the last first heat exchange channel 123 to flow out.

[0141] The first heat exchanger 120 is a component made of a material with good thermal conductivity, wherein the thermal conductive material may be aluminum, aluminum alloy, copper, etc. The first heat exchanger 120 is a component that exchanges heat with the battery cells in the same row.

[0142] The first end 121 refers to one of the two opposite ends of the first heat exchanger 120 . For example, as shown in FIG. 4 , the first end 121 may refer to one of the two ends of the first heat exchanger 120 distributed along the length direction, or may refer to the left end of the first heat exchanger 120 .

[0143] The second end 122 refers to the other end of the two opposite ends of the first heat exchanger 120. For example, as shown in Figure 4, the second end 122 can refer to the other end of the two ends of the first heat exchanger 120 distributed along the length direction, or it can be the right end of the first heat exchanger 120.

[0144] The length direction, as shown in the accompanying drawings, is the X direction. The height direction and thickness direction will also appear below. The height direction is the Z direction, and the thickness direction is the Y direction.

[0145] The first heat exchange channel 123 is a channel within the first heat exchange body 120 for the flow of heat exchange medium. This channel extends from the first end 121 to the second end 122. For example, as shown in Figure 6, the first heat exchange channel 123 extends horizontally through the first heat exchange body 120 along its length. Of course, in other embodiments, the first heat exchange channel 123 can also extend from the first end 121 to the second end 122 in an inclined or curved manner, which is not limited here. Since the first heat exchange body 120 is made of a material with good thermal conductivity, the heat exchange medium can exchange heat with the battery cells through the first heat exchange body 120 during the flow of the first heat exchange channel 123.

[0146] At least two first heat exchange channels 123 are configured within the first heat exchange body 120. It is understood that the number of first heat exchange channels 123 for one first heat exchange body 120 can be two, four, six, or the like. For example, as shown in FIG7 , two first heat exchange channels 123 are provided within the first heat exchange body 120; and as another example, as shown in FIG6 , four first heat exchange channels 123 are provided within the first heat exchange element 100a. The number of first heat exchange channels 123 can be selected based on actual needs and is not limited herein.

[0147] The first heat exchange channels 123 are connected in sequence. It can be understood that the first heat exchange channels 123 are connected one by one in a certain order, so that the heat exchange medium can flow through each first heat exchange channel 123, wherein the order can be from top to bottom or from bottom to top, etc., and of course it can also be connected alternately from top to bottom, etc., which is not limited here.

[0148] The first current collector 110 is a component connected to the first end 121 of the first heat exchanger 120 and capable of allowing heat exchange medium to flow in and out.

[0149] The first inlet 1101 refers to an opening structure formed on the first current collector 110 , and the opening structure allows heat exchange medium to flow into the first heat exchange channel 123 .

[0150] The first outlet 1102 refers to another opening structure formed on the first current collector 110 , and the opening structure allows the heat exchange medium in the first heat exchange channel 123 to flow out of the heat exchange element 100 .

[0151] The first inlet 1101 is connected to the first first heat exchange channel 123 and is used to allow heat exchange medium to flow into the first first heat exchange channel 123. The first outlet 1102 is connected to the last first heat exchange channel 123 and is used to allow the heat exchange medium in the last first heat exchange channel 123 to flow out. It can be understood that after the heat exchange medium enters the first first heat exchange channel 123 through the first inlet 1101 and passes through each first heat exchange channel 123 in sequence, it finally flows out of the heat exchange element 100 through the first outlet 1102. The first first heat exchange channel 123 refers to the first first heat exchange channel 123 that the heat exchange medium flows into after entering the first inlet 1101, and the last first heat exchange channel 123 refers to the last first heat exchange channel 123 that the heat exchange medium flows through before flowing out of the first outlet 1102. The specific flow path of the heat exchange medium can be referred to the path indicated by the hollow arrows in Figures 6 and 7. The heat exchange medium can be water, air, coolant, etc.

[0152] In the heat exchange element 100 of the embodiment of the present application, when exchanging heat with a row of battery cells, the heat exchange medium flows from the first inlet 1101 of the first current collector 110 into the first heat exchange channel 123, flows through each first heat exchange channel 123 in sequence, exchanges heat with a row of battery cells, and finally flows out from the first outlet 1102, thus completing the heat exchange of a row of battery cells; and since the first current collector 110 is connected to the first end 121 of the first heat exchange body 120, and the first heat exchange channel 123 extends from the first end 121 to the second end 122, the heat exchange medium flows from the first end 121 to the second end 122, and the flow After reaching the second end 122, it flows toward the first end 121, and thus flows back and forth between the first end 121 and the second end 122, and finally flows out from the first end 121; and in the process of the heat exchange medium flowing from the first end 121 to the second end 122 and then flowing back from the second end 122 to the first end 121, in the direction from the first end 121 to the second end 122, the same row of battery cells is subjected to heat exchange by a heat exchange medium with increasing heat exchange effect, while also being subjected to heat exchange by a heat exchange medium with decreasing heat exchange effect, thereby making the heat exchange effect of the battery cells in the same row uniform, thereby improving the temperature difference of the battery cells in the same row.

[0153] In an embodiment of the present application, a row of battery cells may include one or more battery cells, wherein a row of battery cells may include two, three or more battery cells, and the specific number can be selected according to actual needs and is not limited here.

[0154] In one embodiment of the present application, as shown in Figures 19 and 20, the first heat exchange body 120 is provided with a plurality of heat exchange sub-channels 125 arranged in parallel, and the heat exchange sub-channels 125 extend along the length direction of the first heat exchange body 120. The plurality of heat exchange sub-channels 125 are evenly spaced along the height direction of the first heat exchange body 120, and two adjacent heat exchange sub-channels 125 are separated by a partition plate 126; a first heat exchange channel 123 can be composed of one or more heat exchange sub-channels 125, and the number of heat exchange sub-channels 125 in the first heat exchange channel 123 can be selected according to actual needs; wherein, the first heat exchange channel 123 may include two, three, or more than four heat exchange sub-channels 125.

[0155] In one embodiment of the present application, as shown in Figures 19 and 20, one or more protrusions 127 are provided on the opposite side walls of the heat exchange sub-channel 125 to increase the heat exchange area of ​​the heat exchange medium and improve the heat exchange effect; in addition, the protrusions 127 provided on the opposite side walls of the heat exchange sub-channel 125 are staggered to reduce the flow resistance of the heat exchange medium in the heat exchange sub-channel 125 and improve the heat exchange effect.

[0156] In another embodiment of the present application, in combination with Figures 4, 6 and 7, the heat exchange element 100 provided further includes a connecting piece 130, which is connected to the second end 122. At least one first connecting channel 131 is constructed in the connecting piece 130, and the ends of every two first heat exchange channels 123 close to the second end 122 are connected through a first connecting channel 131.

[0157] The connecting member 130 is a component installed at an end of the first heat exchanger 120 opposite to the first current collector 110 .

[0158] The first connecting channel 131 refers to a channel structure formed in the connecting piece 130, which connects the ends of the two first heat exchange channels 123 close to the second end 122. The heat exchange medium in one of the first heat exchange channels 123 flows to the second end 122, then flows through the first connecting channel 131 into the second end 122 of the other first heat exchange channel 123, and then flows toward the first end 121. In this way, the backflow of the heat exchange medium is realized, and the two first heat exchange channels 123 are connected in sequence.

[0159] At least one first communication channel 131 is configured in the connecting member 130. For one connecting member 130, it is understood that one or more first communication channels 131 are configured in the connecting member 130. For example, as shown in FIG7 , one first communication channel 131 is configured in the connecting member 130; for example, as shown in FIG6 , two first communication channels 131 are configured in the connecting member 130. Of course, in other embodiments, the connecting member 130 may also be configured with three, four, or more than five first communication channels 131. The number of first communication channels 131 is selected based on the number of the first heat exchange channels 123, as long as the first heat exchange channels 123 are sequentially connected, and is not limited here.

[0160] The ends of every two first heat exchange channels 123 close to the second end 122 are connected through a first connecting channel 131. It can be understood that the ends of all first heat exchange channels 123 close to the second end 122 are arranged in pairs, and each pair of ends is connected through a first connecting channel 131 to achieve sequential connection of the first heat exchange channels 123.

[0161] The heat exchange element 100 of the embodiment of the present application connects the two first heat exchange channels 123 through the first connecting channel 131 in the connecting member 130 to achieve sequential connection of the first heat exchange channels 123 . The structure is simple and easy to process and manufacture.

[0162] In another embodiment of the present application, as shown in Figure 6, the number of first heat exchange channels 123 provided in the heat exchange element 100 is greater than two, and at least one second connecting channel 1103 is further constructed in the first fluid collector 110; the ends of every two first heat exchange channels 123 near the first end 121 are connected through a second connecting channel 1103.

[0163] The second connecting channel 1103 refers to a channel structure formed in the first fluid collector 110, which connects the ends of the two first heat exchange channels 123 close to the first end 121. The heat exchange medium in one of the first heat exchange channels 123 flows to the first end 121, then flows into the first end 121 of the other first heat exchange channel 123 through the first connecting channel 131, and then flows toward the second end 122. In this way, the backflow of the heat exchange medium is realized, and the two first heat exchange channels 123 are connected in sequence.

[0164] At least one second connecting channel 1103 is also constructed in the first current collector 110. It can be understood that for a first current collector 110, one or more second connecting channels 1103 are constructed in the first current collector 110. For example, as shown in Figure 6, one second connecting channel 1103 is constructed in the first current collector 110; of course, in other embodiments, the first current collector 110 can also be constructed with two, three, four or more second connecting channels 1103. The number of the second connecting channels 1103 is selected according to the number of the first heat exchange channels 123, as long as the first heat exchange channels 123 are connected in sequence, and is not limited here.

[0165] The ends of every two first heat exchange channels 123 close to the first end 121 are connected through a second connecting channel 1103. It can be understood that the ends of all first heat exchange channels 123 close to the first end 121 are arranged in pairs, and each pair of ends is connected through a second connecting channel 1103 to achieve sequential connection of the first heat exchange channels 123.

[0166] The heat exchange element 100 of the embodiment of the present application connects the two first heat exchange channels 123 through the second connecting channel 1103 in the first current collector 110 to achieve sequential connection of the first heat exchange channels 123 . The structure is simple and easy to process and manufacture.

[0167] In another embodiment of the present application, in combination with Figures 8, 9 and 10, the heat exchange element 100 provided further includes a second fluid collector 140, which is installed at the second end 122, and the second fluid collector 140 is constructed with a second inlet 141 and a second outlet 142; at least two second heat exchange channels 124 are also constructed in the first heat exchange body 120, and the second heat exchange channels 124 extend from the first end 121 to the second end 122, and the second heat exchange channels 124 are connected in sequence; wherein the second inlet 141 is connected to the first second heat exchange channel 124, and the second inlet 141 is used to supply heat exchange medium to flow into the first second heat exchange channel 124; the second outlet 142 is connected to the last second heat exchange channel 124, and the second outlet 142 is used to supply the heat exchange medium in the last second heat exchange channel 124 to flow out.

[0168] The second current collector 140 is a component connected to the second end 122 of the first heat exchanger 120 .

[0169] The second inlet 141 refers to an opening structure formed on the second current collector 140 , and the opening structure allows heat exchange medium to flow into the second heat exchange channel 124 .

[0170] The second outlet 142 refers to another opening structure formed on the second current collector 140 , which allows the heat exchange medium in the second heat exchange channel 124 to flow out of the heat exchange element 100 .

[0171] The second heat exchange channel 124 is a channel within the first heat exchanger 120 for the flow of the heat exchange medium. This channel extends from the first end 121 to the second end 122. For example, as shown in Figure 10, the second heat exchange channel 124 extends horizontally through the first heat exchanger 120 along its length. Of course, in other embodiments, the second heat exchange channel 124 can also extend from the first end 121 to the second end 122 in an inclined or curved manner, which is not limited here. Since the first heat exchanger 120 is made of a material with good thermal conductivity, the heat exchange medium can exchange heat with the battery cells through the first heat exchanger 120 during the flow of the second heat exchange channel 124.

[0172] At least two second heat exchange channels 124 are also configured within the first heat exchanger 120. It is understood that, for one first heat exchanger 120, the number of second heat exchange channels 124 can be two, four, six, or the like. For example, as shown in FIG10 , two first heat exchange channels 123 are provided within the first heat exchanger 120. The number of second heat exchange channels 124 can be selected based on actual needs and is not limited herein.

[0173] The second heat exchange channels 124 are connected in sequence. It can be understood that the second heat exchange channels 124 are connected one by one in a certain order, so that the heat exchange medium can flow through each second heat exchange channel 124, wherein the order can be from top to bottom or from bottom to top, etc., and of course it can also be connected alternately from top to bottom, etc., which is not limited here.

[0174] The second inlet 141 is connected to the first second heat exchange channel 124, and the second inlet 141 is used to allow heat exchange medium to flow into the first second heat exchange channel 124. The second outlet 142 is connected to the last second heat exchange channel 124, and the second outlet 142 is used to allow the heat exchange medium in the last second heat exchange channel 124 to flow out. It can be understood that after the heat exchange medium enters the first second heat exchange channel 124 through the second inlet 141 and passes through each second heat exchange channel 124 in sequence, it finally flows out of the heat exchange element 100 through the second outlet 142. The first second heat exchange channel 124 refers to the first second heat exchange channel 124 that the heat exchange medium flows into after entering the second inlet 141, and the last second heat exchange channel 124 refers to the last second heat exchange channel 124 that the heat exchange medium flows through before flowing out of the second outlet 142.

[0175] In the heat exchange element 100 of the embodiment of the present application, two heat exchange media flow into the first inlet 1101 and the second inlet 141 respectively. The heat exchange medium flowing in from the first inlet 1101 flows through each first heat exchange channel 123 in sequence and finally flows out from the first outlet 1102; the heat exchange medium flowing in from the second inlet 141 flows through each second heat exchange channel 124 in sequence and finally flows out from the second outlet 142. In this way, the batteries in the same row are subjected to heat exchange by the two heat exchange media, and the heat exchange effect is better.

[0176] In one embodiment, a second heat exchange channel 124 may be composed of one or more heat exchange sub-channels 125, wherein the number of heat exchange sub-channels 125 in the second heat exchange channel 124 can be selected according to actual needs, wherein the second heat exchange channel 124 may include two, three or more than four heat exchange sub-channels 125.

[0177] In another embodiment of the present application, as shown in FIG10 , at least one third connecting channel 1104 is configured in the first current collector 110 of the provided heat exchange element 100 , and the ends of every two second heat exchange channels 124 close to the first end 121 are connected through a third connecting channel 1104 .

[0178] The third connecting channel 1104 refers to a channel structure formed in the first fluid collector 110, which connects the ends of the two second heat exchange channels 124 close to the first end 121, so that the heat exchange medium in one of the second heat exchange channels 124 flows to the first end 121 and then flows into the first end 121 of the other second heat exchange channel 124 through the third connecting channel 1104, and then flows toward the second end 122, thereby realizing the backflow of the heat exchange medium and the sequential connection of the two second heat exchange channels 124.

[0179] At least one third connecting channel 1104 is constructed in the first current collector 110. It can be understood that, for a first current collector 110, one or more third connecting channels 1104 are constructed in the first current collector 110. For example, as shown in Figure 10, one third connecting channel 1104 is constructed in the first current collector 110; of course, in other embodiments, the first current collector 110 can also be constructed with two, three, four or more third connecting channels 1104. The number of the third connecting channels 1104 is selected according to the number of the second heat exchange channels 124, as long as the second heat exchange channels 124 are connected in sequence, and is not limited here.

[0180] The ends of every two second heat exchange channels 124 close to the first end 121 are connected through a third connecting channel 1104. It can be understood that the ends of all second heat exchange channels 124 close to the first end 121 are arranged in pairs, and each pair of ends is connected through a third connecting channel 1104 to achieve sequential connection of the second heat exchange channels 124.

[0181] The heat exchange element 100 of the embodiment of the present application utilizes the third connecting channel 1104 provided in the first current collector 110 to achieve the connection of the second heat exchange channel 124 , and has a simple structure and is convenient for processing and manufacturing.

[0182] In another embodiment of the present application, at least one fourth communication channel 143 is configured in the second current collector 140 of the provided heat exchange element 100 , and the ends of every two first heat exchange channels 123 close to the second end 122 are connected through a fourth communication channel 143 .

[0183] The fourth connecting channel 143 refers to a channel structure formed in the second fluid collector 140, which connects the ends of the two first heat exchange channels 123 close to the second end 122, so that the heat exchange medium in one of the first heat exchange channels 123 flows to the second end 122 and then flows into the second end 122 of the other first heat exchange channel 123 through the fourth connecting channel 143, and then flows toward the first end 121, thereby realizing the reflux of the heat exchange medium and realizing the sequential connection of the two first heat exchange channels 123.

[0184] At least one fourth connecting channel 143. For a second current collector 140, one or more fourth connecting channels 143 are constructed in the second current collector 140. For example, as shown in Figure 10, there is one fourth connecting channel 143 constructed in the second current collector 140; of course, in other embodiments, the second current collector 140 can also be constructed with two, three, four or more fourth connecting channels 143. The number of the fourth connecting channels 143 is selected according to the number of the first heat exchange channels 123, as long as the first heat exchange channels 123 are connected in sequence, and is not limited here.

[0185] The ends of every two first heat exchange channels 123 close to the second end 122 are connected through a fourth connecting channel 143. It can be understood that the ends of all first heat exchange channels 123 close to the second end 122 are arranged in pairs, and each pair of ends is connected through a fourth connecting channel 143 to achieve sequential connection of the first heat exchange channels 123.

[0186] The heat exchange element 100 of the embodiment of the present application utilizes the fourth connecting channel 143 provided in the second current collector 140 to achieve the connection of the first heat exchange channel 123 , and has a simple structure and is convenient for processing and manufacturing.

[0187] In another embodiment of the present application, as shown in FIG. 10 , the first heat exchange channels 123 and the second heat exchange channels 124 of the heat exchange element 100 are alternately arranged in parallel.

[0188] The first heat exchange channels 123 and the second heat exchange channels 124 are alternately arranged in parallel. For example, as shown in FIG. 10 , the first heat exchange channels 123 and the second heat exchange channels 124 are alternately arranged in parallel along the height direction of the first heat exchange body 120 .

[0189] In the heat exchange element 100 of the embodiment of the present application, two streams of heat exchange elements 100 flow alternately and in parallel in the first heat exchange body 120, the heat exchange medium is evenly distributed, the heat exchange effect of the battery cells in the same row is good, and it is beneficial to improve the performance of the battery.

[0190] In another embodiment of the present application, in combination with Figure 10, the number of first heat exchange channels 123 of the heat exchange element 100 provided is two, the number of second heat exchange channels 124 is two, and a first cavity 1105 and a second cavity 1106 are constructed in the first current collector 110. The first cavity 1105 and the second cavity 1106 are arranged along the alternating arrangement direction of the first heat exchange channels 123 and the second heat exchange channels 124. The first cavity 1105 connects the first outlet 1102 and the corresponding first heat exchange channel 123; the second cavity 1106 connects the first inlet 1101 and is connected to another first heat exchange channel 123; the third connecting channel 1104 is arranged around the outside of the second cavity 1106, and the second cavity 1106 is located between the two ends of the third connecting channel 1104, and the two ends of the third connecting channel 1104 are respectively connected to the two second heat exchange channels 124.

[0191] The first cavity 1105 refers to a chamber structure formed in the first current collector 110, which can connect the first outlet 1102 and the corresponding first heat exchange channel 123; for example, as shown in Figure 10, the side of the first cavity 1105 has an opening, and the first cavity 1105 is connected to the first heat exchange channel 123 through the opening, and the first outlet 1102 is formed on the inner wall of the first cavity 1105.

[0192] The second cavity 1106 refers to another chamber structure formed in the first current collector 110, which can connect the first inlet 1101 and another first heat exchange channel 123; for example, as shown in Figure 6, the side of the second cavity 1106 has an opening, and the second cavity 1106 is connected to the first heat exchange channel 123 through the opening, and the first inlet 1101 is formed on the inner wall of the second cavity 1106.

[0193] The first cavity 1105 and the second cavity 1106 are arranged along the alternating arrangement direction of the first heat exchange channel 123 and the second heat exchange channel 124; the third communication channel 1104 is arranged around the second cavity 1106, the second cavity 1106 is located between the two ends of the third communication channel 1104, one end of the third communication channel 1104 is located between the first cavity 1105 and the second cavity 1106, and the two ends of the third communication channel 1104 are respectively connected to the two second heat exchange channels 124; it can be understood that the first cavity 1105, the second cavity 1106 and the third communication channel 110 4 are arranged along the height direction of the first heat exchange body 120, so that the two ends of the first cavity 1105, the second cavity 1106 and the third connecting channel 1104 correspond to the positions of the two first heat exchange channels 123 and the two second heat exchange channels 124, respectively, to facilitate the communication between the first fluid collector 110 and the first heat exchange body 120, and assembly is also more convenient; in addition, the third connecting channel 1104 is arranged around the outside of the second cavity 1106, and the flow paths of the two heat exchange media are separated, thereby reducing mutual influence and improving the heat exchange effect; and the structure of the first fluid collector 110 is simple, which is convenient for processing and manufacturing.

[0194] In another embodiment of the present application, as shown in FIG. 10 , the second outlet 142 of the heat exchange element 100 is provided to be higher than the second inlet 141 .

[0195] In the heat exchange element 100 of the embodiment of the present application, the second outlet 142 is located above the second inlet 141, so that the heat exchange medium flows in from a lower point and then flows out from a higher point, which is beneficial to the discharge of gas in the liquid heat exchange medium and is beneficial to improving the heat exchange effect.

[0196] In another embodiment of the present application, as shown in FIG. 10 , the number of the first heat exchange channels 123 and the number of the second heat exchange channels 124 of the heat exchange element 100 are the same.

[0197] In the heat exchange element 100 of the embodiment of the present application, the number of times the heat exchange medium flowing in the first heat exchange channel 123 goes back and forth between the first end 121 and the second end 122 is the same as the number of times the heat exchange medium flowing in the second heat exchange channel 124 goes back and forth between the first end 121 and the second end 122. Therefore, for the same row of battery cells, in the direction from the first end 121 to the second end 122, the number of heat exchanges by the heat exchange medium with increasing heat exchange effect and the number of heat exchanges by the heat exchange medium with decreasing heat exchange effect received by the same row of battery cells are the same, thereby making the comprehensive heat exchange effect received by the same row of battery cells uniform and improving the temperature difference effect of the same row of battery cells better.

[0198] In another embodiment of the present application, as shown in FIG. 10 , the first current collector 110 and the second current collector 140 of the heat exchange element 100 are rotationally symmetrical about the first heat exchange body 120 .

[0199] The first current collector 110 and the second current collector 140 are rotationally symmetric about the first heat exchanger 120. It can be understood that the second current collector 140 is obtained by rotating the first current collector 110 180° around a certain point, or the first current collector 110 is obtained by rotating the second current collector 140 180° around a certain point. For example, as shown in FIG10 , the point is the center point J of the first heat exchanger 120, wherein the center point J refers to the intersection of the bisector HH in the length direction of the first heat exchanger 120 and the bisector II in the height direction of the first heat exchanger 120. In other words, The first current collector 110 and the second current collector 140 have the same structure. On the one hand, this increases the versatility of components and reduces manufacturing costs. On the other hand, the flow path of the heat exchange medium flowing in from the first current collector 110 and the flow path of the heat exchange medium flowing in from the second current collector 140 are also rotationally symmetrical, resulting in the same heat exchange effect on the battery cells in the same row. The portions on the left and right sides of the battery cells in the same row have the same heat exchange effect, and the two adjacent portions in the same row of batteries also have similar cooling effects. This can significantly improve the temperature difference between the battery cells in the same row.

[0200] In another embodiment of the present application, the first outlet 1102 of the heat exchange element 100 is provided to be higher than the first inlet 1101 .

[0201] In the heat exchange element 100 of the embodiment of the present application, the first outlet 1102 is located above the first inlet 1101, so that the heat exchange medium flows in from a lower point and then flows out from a higher point, which facilitates the discharge of gas in the liquid heat exchange medium and is beneficial to improving the heat exchange effect.

[0202] In another embodiment of the present application, in combination with Figure 11, a heat exchange element 100 is provided, which includes a third fluid collector 210, a fourth fluid collector 220 and a second heat exchange body 230, one end of the second heat exchange body 230 is connected to the third fluid collector 210, and the other end of the second heat exchange body 230 is connected to the fourth fluid collector 220; the second heat exchange body 230 is constructed with a third heat exchange channel 231 and a fourth heat exchange channel 232; the third fluid collector 210 is constructed with a third inlet 211 and a third outlet 212, the fourth fluid collector 220 is constructed with a fourth inlet 221 and a fourth outlet 222, the third heat exchange channel 231 connects the third inlet 211 and the fourth outlet 222; the fourth heat exchange channel 232 connects the fourth inlet 221 and the third outlet 212.

[0203] The second heat exchanger 230 is a component made of a material with good thermal conductivity, wherein the thermal conductive material may be aluminum, aluminum alloy, copper, etc. The second heat exchanger 230 is a component that exchanges heat with the battery cells in the same row.

[0204] One end of the second heat exchanger 230 is connected to the third fluid collector 210 , and the other end of the second heat exchanger 230 is connected to the fourth fluid collector 220 . It can be understood that the third fluid collector 210 and the fourth fluid collector 220 are respectively connected to the opposite ends of the second heat exchanger 230 .

[0205] The third current collector 210 is a component connected to one of the two opposite ends of the second heat exchanger 230. For example, as shown in FIG11 , the third current collector 210 may be a component connected to one of the two ends of the second heat exchanger 230 along the length direction, or may be a component connected to the left end of the second heat exchanger 230.

[0206] The third inlet 211 refers to an opening structure formed on the third current collector 210 , and the opening structure allows the heat exchange medium to flow into the third current collector 210 .

[0207] The third outlet 212 refers to another opening structure formed on the third current collector 210 , and the opening structure allows the heat exchange medium to flow out of the third current collector 210 .

[0208] The fourth current collector 220 is a component connected to the other of the two opposite ends of the second heat exchanger 230. The fourth current collector 220 can be a component connected to the other of the two ends of the second heat exchanger 230 along the length direction, or it can be a component connected to the right end of the second heat exchanger 230.

[0209] The fourth inlet 221 refers to an opening structure formed on the fourth current collector 220 , and the opening structure allows the heat exchange medium to flow into the fourth current collector 220 .

[0210] The fourth outlet 222 refers to another opening structure formed on the third current collector 210 , and the opening structure allows the heat exchange medium to flow out of the fourth current collector 220 .

[0211] The third heat exchange channel 231 is a channel within the second heat exchanger 230 for the flow of heat exchange medium. This channel extends along the distribution direction from the third current collector 210 to the fourth current collector 220. For example, as shown in Figure 11, the third heat exchange channel 231 extends horizontally through the second heat exchanger 230 along its length. Of course, in other embodiments, the third heat exchange channel 231 can also extend at an angle or curve, which is not limited here. Because the second heat exchanger 230 is made of a material with good thermal conductivity, the heat exchange medium can exchange heat with the battery cells through the second heat exchanger 230 during the flow of the third heat exchange channel 231.

[0212] The fourth heat exchange channel 232 is a channel within the second heat exchanger 230 for the flow of heat exchange medium. This channel extends along the distribution direction from the third current collector 210 to the fourth current collector 220. For example, as shown in Figure 11, the fourth heat exchange channel 232 extends horizontally through the second heat exchanger 230 along its length. Of course, in other embodiments, the fourth heat exchange channel 232 can also extend in an inclined or curved manner, which is not limited here. Because the second heat exchanger 230 is made of a material with good thermal conductivity, the heat exchange medium can exchange heat with the battery cells through the second heat exchanger 230 during the flow of the fourth heat exchange channel 232.

[0213] The third heat exchange channel 231 connects the third inlet 211 and the fourth outlet 222 ; it is understandable that the heat exchange medium flowing in from the third inlet 211 flows into the fourth outlet 222 through the third heat exchange channel 231 , and finally flows out of the heat exchange element 100 through the fourth outlet 222 .

[0214] The fourth heat exchange channel 232 connects the fourth inlet 221 and the third outlet 212 ; it is understandable that the heat exchange medium flowing in from the fourth inlet 221 flows into the third outlet 212 through the fourth heat exchange channel 232 , and finally flows out of the heat exchange element 100 through the third outlet 212 .

[0215] In the heat exchange element 100 of the embodiment of the present application, during heat exchange, the first heat exchange medium flows into the first inlet 1101 of the third fluid collector 210 and flows through the third heat dissipation channel and finally flows out from the fourth outlet 222 of the fourth fluid collector 220. The second heat exchange medium flows into the fourth inlet 221 of the fourth fluid collector 220 and flows through the fourth heat exchange channel 232 and finally flows out from the third outlet 212 of the third fluid collector 210. Since one end of the second heat exchange body 230 is connected to the third fluid collector 210 and the other end of the second heat exchange body 230 is connected to the fourth fluid collector 220, The first heat exchange medium flows from the third fluid collector 210 toward the fourth fluid collector 220, and the second heat exchange medium flows from the fourth fluid collector 220 toward the third fluid collector 210. The flow directions of the two heat exchange media are opposite. Therefore, in the distribution direction from the third fluid collector 210 toward the fourth fluid collector 220, the battery cells in the same row are subjected to heat exchange by a heat exchange medium with increasing heat exchange effect, and at the same time, are subjected to heat exchange by a heat exchange medium with decreasing heat exchange effect, thereby making the heat exchange effect of the battery cells in the same row uniform, thereby improving the temperature difference of the battery cells in the same row.

[0216] In another embodiment, the structure of the first heat exchanger 120 is the same as that of the second heat exchanger 230. Similarly, each of the third heat exchange channel 231 and the fourth heat exchange channel 232 may be composed of one or more heat exchange sub-channels 125. The number of heat exchange sub-channels 125 in the third heat exchange channel 231 and the number of heat exchange sub-channels 125 in the fourth heat exchange channel 232 can be selected according to actual needs. Specifically, the third heat exchange channel 231 may include two, three, or more than four heat exchange sub-channels 125; and the fourth heat exchange channel 232 may include two, three, or more than four heat exchange sub-channels 125. Of course, in other embodiments, the structure of the first heat exchanger 120 may be different from that of the second heat exchanger 230.

[0217] In another embodiment of the present application, the heat exchange element 100 provided has multiple third heat exchange channels 231 and multiple fourth heat exchange channels 232. The third heat exchange channels 231 are connected in sequence, and the fourth heat exchange channels 232 are connected in sequence. The third inlet 211 is connected to the first third heat exchange channel 231, and the fourth outlet 222 is connected to the last third heat exchange channel 231. The fourth inlet 221 is connected to the first fourth heat exchange channel 232, and the third outlet 212 is connected to the last fourth heat exchange channel 232.

[0218] There are multiple third heat exchange channels 231 . It is understandable that the number of the third heat exchange channels 231 is two, three, four or more than five. The specific number can be selected according to actual needs and is not limited here.

[0219] There are multiple fourth heat exchange channels 232 . It is understandable that the number of the fourth heat exchange channels 232 is two, three, four or more than five. The specific number can be selected according to actual needs and is not limited here.

[0220] The third heat exchange channels 231 are connected in sequence. It can be understood that the third heat exchange channels 231 are connected one by one in a certain order, so that the heat exchange medium can flow through each third heat exchange channel 231, wherein the order can be from top to bottom or from bottom to top, etc., and of course it can also be connected alternately from top to bottom, etc., which is not limited here.

[0221] The fourth heat exchange channels 232 are connected in sequence. It can be understood that the fourth heat exchange channels 232 are connected one by one in a certain order, so that the heat exchange medium can flow through each fourth heat exchange channel 232, wherein the order can be from top to bottom or from bottom to top, etc., and of course it can also be connected alternately from top to bottom, etc., which is not limited here.

[0222] The third inlet 211 is connected to the first third heat exchange channel 231, and the fourth outlet 222 is connected to the last third heat exchange channel 231. It can be understood that after the heat exchange medium enters the first third heat exchange channel 231 from the third inlet 211 and passes through each third heat exchange channel 231 in sequence, it finally flows out of the heat exchange element 100 through the fourth outlet 222. The first third heat exchange channel 231 refers to the first third heat exchange channel 231 that the heat exchange medium flows into after entering the third inlet 211, and the last third heat exchange channel 231 refers to the last third heat exchange channel 231 that the heat exchange medium flows through before flowing out of the fourth outlet 222. With this design, the heat exchange medium flows through multiple third heat exchange channels 231, the heat exchange medium flows over a long distance, the heat exchange area of ​​the heat exchange medium is large, and the heat exchange effect is better.

[0223] The fourth inlet 221 is connected to the first of the fourth heat exchange channels 232, and the third outlet 212 is connected to the last of the fourth heat exchange channels 232. It is understood that after the heat exchange medium enters the first of the fourth heat exchange channels 232 from the fourth inlet 221 and passes through each of the fourth heat exchange channels 232 in sequence, it finally flows out of the heat exchange element 100 through the third outlet 212. The first of the fourth heat exchange channels 232 refers to the first fourth heat exchange channel 232 that the heat exchange medium flows into after entering the fourth inlet 221, and the last of the fourth heat exchange channels 232 refers to the last fourth heat exchange channel 232 that the heat exchange medium flows through before flowing out of the third outlet 212. With this design, the heat exchange medium flows through multiple fourth heat exchange channels 232, the heat exchange medium flows over a long distance, the heat exchange area of ​​the heat exchange medium is large, and the heat exchange effect is better.

[0224] The heat exchange element 100 of the embodiment of the present application has a long flow distance of the heat exchange medium, a large heat exchange area, and a better heat exchange effect.

[0225] In another embodiment of the present application, the number of the third heat exchange channels 231 and the number of the fourth heat exchange channels 232 of the heat exchange element 100 are the same.

[0226] In the heat exchange element 100 of the embodiment of the present application, the number of times the heat exchange medium flowing in the third heat exchange channel 231 goes back and forth between the third fluid collector 210 and the fourth fluid collector 220 is the same as the number of times the heat exchange medium flowing in the fourth heat exchange channel 232 goes back and forth between the third fluid collector 210 and the fourth fluid collector 220. Therefore, for the same row of battery cells, in the direction of the third fluid collector 210 and the fourth fluid collector 220, the number of heat exchanges by the heat exchange medium with increasing heat exchange effect and the number of heat exchanges by the heat exchange medium with decreasing heat exchange effect received by the same row of battery cells are the same, thereby making the comprehensive heat exchange effect received by the same row of battery cells uniform and improving the temperature difference effect of the same row of battery cells better.

[0227] In another embodiment of the present application, the third heat exchange channels 231 and the fourth heat exchange channels 232 of the heat exchange element 100 are arranged alternately.

[0228] The third heat exchange channels 231 and the fourth heat exchange channels 232 are alternately arranged in parallel. For example, the third heat exchange channels 231 and the fourth heat exchange channels 232 are alternately arranged in parallel along a height direction of the second heat exchange body 230 .

[0229] In the heat exchange element 100 of the embodiment of the present application, two streams of heat exchange elements 100 flow alternately and in parallel in the second heat exchange body 230 , the heat exchange medium is evenly distributed, the heat exchange effect of the battery cells in the same row is good, and it is beneficial to improve the performance of the battery.

[0230] In another embodiment of the present application, in combination with Figure 11, the number of the third heat exchange channel 231 provided in the heat exchange element 100 is one, the number of the fourth heat exchange channel 232 is one, and a first partition 213 is constructed in the third fluid collector 210. The first partition 213 is used to separate the inner cavity of the third fluid collector 210 into a third cavity 214 and a fourth cavity 215. The third cavity 214 connects the third inlet 211 and the third heat exchange channel 231, and the fourth cavity 215 connects the third outlet 212 and the fourth heat exchange channel 232.

[0231] The first separator 213 refers to a partition plate 126 in the inner cavity of the third current collector 210 , and divides the inner cavity of the third current collector 210 into a first cavity 1105 and a second cavity 1106 .

[0232] The third cavity 214 refers to a chamber structure formed in the third current collector 210, which can connect the third inlet 211 and the corresponding third heat exchange channel 231; for example, as shown in Figure 11, the side of the third cavity 214 has an opening, and the third cavity 214 is connected to the third heat exchange channel 231 through the opening, and the third inlet 211 is formed on the inner wall of the third cavity 214.

[0233] The fourth cavity 215 refers to another chamber structure formed in the third current collector 210, which can connect the third outlet 212 and another fourth heat exchange channel 232; for example, as shown in Figure 11, the side of the fourth cavity 215 has an opening, and the fourth cavity 215 is connected to the fourth heat exchange channel 232 through the opening, and the third outlet 212 is formed on the inner wall of the fourth cavity 215.

[0234] The third cavity 214 is connected to the third inlet 211 and the third heat exchange channel 231, and the fourth cavity 215 is connected to the third outlet 212 and the fourth heat exchange channel 232. It can be understood that the heat exchange medium enters the third cavity 214 from the third inlet 211 and then enters the third heat exchange channel 231, and finally flows out of the heat exchange element 100 from the fourth outlet 222. Similarly, the heat exchange medium enters the fourth cavity 215 from the fourth inlet 221 and then enters the third heat exchange channel 231, and finally flows out of the heat exchange element 100 from the third outlet 212.

[0235] In the heat exchange element 100 of the embodiment of the present application, the third current collector 210 has a simple structure and is easy to process and manufacture.

[0236] In another embodiment of the present application, as shown in FIG. 11 , the third current collector 210 and the fourth current collector 220 of the heat exchange element 100 are rotationally symmetric about the second heat exchange body 230 .

[0237] The third fluid collector 210 and the fourth fluid collector 220 are rotationally symmetrical about the second heat exchanger 230. It can be understood that the third fluid collector 210 is rotated 180° around a certain point to obtain the fourth fluid collector 220, or the fourth fluid collector 220 is rotated 180° around a certain point to obtain the third fluid collector 210; for example, as shown in FIG10 , the point is the center point N of the second heat exchanger 230, wherein the center point N refers to the intersection of the bisector KK in the length direction of the second heat exchanger 230 and the bisector MM in the height direction of the second heat exchanger 230; that is, the third fluid collector 210 is rotated 180° around a certain point to obtain the fourth fluid collector 2 ... The third current collector 210 and the fourth current collector 220 have the same structure. On the one hand, this can increase the versatility of components and reduce manufacturing costs. On the other hand, the flow path of the heat exchange medium flowing in from the third current collector 210 and the flow path of the other heat exchange medium flowing in from the fourth current collector 220 are also rotationally symmetrical. Therefore, the heat exchange effect on the battery cells in the same row is the same. The parts on the left and right sides of the battery cells in the same row have the same heat exchange effect. The two adjacent parts in the same row of batteries also have similar cooling effects. In this way, the temperature difference between the battery cells in the same row can be significantly improved.

[0238] In another embodiment of the present application, as shown in FIG. 11 , the fourth outlet 222 of the heat exchange element 100 is located above the third inlet 211 ; and / or the third outlet 212 is located above the fourth inlet 221 .

[0239] In a possible design, the fourth outlet 222 is located above the third inlet 211, so that the heat exchange medium flows in from a lower point and flows out from a higher point, which is conducive to the discharge of gas in the liquid heat exchange medium and helps to improve the heat exchange effect.

[0240] In another possible design, the third outlet 212 is located above the fourth inlet 221, so that the heat exchange medium flows in from a lower point and flows out from a higher point, which is conducive to the discharge of gas in the liquid heat exchange medium and helps to improve the heat exchange effect.

[0241] In another possible design, the fourth outlet 222 is located above the third inlet 211; the third outlet 212 is located above the fourth inlet 221, so that the two heat exchange media in the heat exchange element 100 flow in from a low place and then flow out from a high place, which is more conducive to the discharge of gas in the liquid heat exchange medium and is beneficial to improving the heat exchange effect.

[0242] In another embodiment of the present application, a heat exchange assembly 1 is provided, comprising the above-mentioned heat exchange element 100 .

[0243] The heat exchange assembly 1 of the embodiment of the present application adopts the above-mentioned heat exchange element 100, which can effectively improve the temperature difference between battery cells in the same row, and is beneficial to improving the performance of the battery using the heat exchange assembly 1.

[0244] In another embodiment of the present application, in combination with Figures 4 and 5, a heat exchange assembly 1 is provided, including a first inlet pipe 310, a first outlet pipe 320 and at least two of the above-mentioned heat exchange elements 100; each first inlet 1101 is connected to the first inlet pipe 310, and each first outlet 1102 is connected to the first outlet pipe 320.

[0245] The first inlet pipe 310 refers to the pipe through which the heat exchange medium flows before flowing into the first inlet 1101 .

[0246] The first outlet pipe 320 refers to the pipe through which the heat exchange medium flows after flowing out of the first outlet 1102 .

[0247] At least two of the above-mentioned heat exchange elements 100 can be understood as follows: for a heat exchange assembly 1, it includes two, three or more than four heat exchange elements 100. For example, as shown in FIG. 4 , the number of heat exchange elements 100 is ten.

[0248] Each first inlet 1101 is connected to the first inlet pipe 310, and each first outlet 1102 is connected to the first outlet pipe 320. It can be understood that the heat exchange medium flows into each first inlet 1101 through the first inlet pipe 310, and then flows into each first heat exchange channel 123 one by one, and then flows out from each first outlet 1102 one by one, and finally gathers in the first outlet pipe 320 and flows out together.

[0249] The heat exchange assembly 1 of the embodiment of the present application adopts the above-mentioned heat exchange element 100, so that the heat exchange assembly 1 can improve the temperature difference between battery cells in the same row. In addition, the connection method of using the first inlet pipe 310 and the first outlet pipe 320 to connect each heat exchange element 100 has a simple structure and is convenient for processing and manufacturing.

[0250] In another embodiment of the present application, in combination with Figures 4 and 5, the multiple heat exchange elements 100 of the heat exchange component 1 provided are arranged at intervals along the first direction; the first inlet pipe 310 extends along the first direction and is sequentially connected to each first inlet 1101, and the heat exchange medium in the first inlet pipe 310 flows along the first direction; the multiple heat exchange elements 100 of the heat exchange component 1 are divided into a first heat exchange module 1001 and a second heat exchange module 1002 arranged sequentially at intervals along the first direction, the heat exchange element 100 in the first heat exchange module 1001 is a first heat exchange element 100a, and the heat exchange element 100 in the second heat exchange module 1002 is a second heat exchange element 100b; the cross-sectional area of ​​the first heat exchange channel 123 in the first heat exchange element 100a is smaller than the cross-sectional area of ​​the first heat exchange channel 123 in the second heat exchange element 100b.

[0251] Multiple heat exchange elements 100 are arranged at intervals along a first direction. For example, as shown in Figure 4, the first direction is the positive direction of the Y-axis, and multiple heat exchange elements 100 are arranged at intervals along the positive direction of the Y-axis, that is, multiple heat exchange elements 100 are arranged at intervals from front to back. The gap between two adjacent heat exchange elements 100 can accommodate the same row of battery cells, and the two heat exchange elements 100 exchange heat on opposite sides of this row of battery cells.

[0252] The first inlet pipe 310 extends along the first direction and is connected to each first inlet 1101 in sequence. The heat exchange medium in the first inlet pipe 310 flows along the first direction. For example, as shown in FIG. 4 , the heat exchange medium in the first inlet pipe 310 flows into each first inlet 1101 in sequence from front to back.

[0253] It should be noted here that, during the flow of the heat exchange medium in the first inlet pipe 310 from front to back, the resistance of the heat exchange medium entering the heat exchange component 100 arranged in the front is small, while the resistance of the heat exchange medium flowing into the heat exchange component 100 arranged in the rear is large, so that the front and rear flow distribution of the heat exchange component 1 is more in the front and less in the rear, resulting in a large temperature difference between different rows of battery cells.

[0254] The multiple heat exchangers 100 of the heat exchange assembly 1 are divided into a first heat exchange module 1001 and a second heat exchange module 1002 arranged in sequence along the first direction. It can be understood that the heat exchanger 100 located on the front side forms the first heat exchange module 1001, and the heat exchanger 100 located on the rear side (the remaining heat exchangers 100) form the second heat exchange module 1002. For example, as shown in Figure 5, the heat exchangers 100 in the heat exchange assembly 1 are divided equally to obtain the first heat exchange module 1001 and the second heat exchange module 1002. The number of heat exchangers 100 is ten, the first five heat exchangers 100 constitute the first heat exchange module 1001, and the last five heat exchangers 100 constitute the second heat exchange module 1002. Of course, in other embodiments, there can be other divisions, which can be selected according to actual needs and are not limited here. The first heat exchange module 1001 may include one, two, three or more than four heat exchangers 100.

[0255] The cross-sectional area of ​​the first heat exchange channel 123 refers to the flow area of ​​the heat exchange medium in the first heat exchange channel 123; for example, the cross-sectional area of ​​the first heat exchange channel 123 refers to a plane figure obtained by cutting the first heat exchange channel 123 with a plane perpendicular to the X-axis direction, and the area of ​​the plane figure is the cross-sectional area of ​​the first heat exchange channel 123.

[0256] The heat exchange element 100 in the first heat exchange module 1001 is the first heat exchange element 100a, and the heat exchange element 100 in the second heat exchange module 1002 is the second heat exchange element 100b; the cross-sectional area of ​​the first heat exchange channel 123 in the first heat exchange element 100a is smaller than the cross-sectional area of ​​the first heat exchange channel 123 in the second heat exchange element 100b; it can be understood that the heat exchange medium in the first inlet pipe 310 first flows into the first heat exchange element 100a and then flows into the second heat exchange element 100b, but the first heat exchange channel in the first heat exchange element 100a is smaller than the cross-sectional area of ​​the first heat exchange channel 123 in the second heat exchange element 100b. The cross-sectional area of ​​123 is small, and the cross-sectional area of ​​the first heat exchange channel 123 in the second heat exchange element 100b is large, thereby increasing the resistance of the heat exchange medium flowing into the first heat exchange element 100a and reducing the resistance of the heat exchange medium flowing into the second heat exchange element 100b, thereby reducing the flow rate of the heat exchange medium flowing into the first heat exchange element 100a while increasing the flow rate of the heat exchange medium flowing into the second heat exchange element 100b, thereby improving the uneven distribution of the heat exchange medium in the heat exchange assembly 1, and thereby improving the temperature difference between different rows of battery cells.

[0257] In another embodiment of the present application, in combination with Figures 6 and 7, the number of first heat exchange channels 123 of the first heat exchange element 100a of the heat exchange assembly 1 is twice the number of first heat exchange channels 123 of the second heat exchange element 100b, and the cross-sectional area of ​​the first heat exchange channels 123 of the first heat exchange element 100a is half the cross-sectional area of ​​the first heat exchange channels 123 of the second heat exchange element 100b.

[0258] The number of the first heat exchange channels 123 of the first heat exchange element 100a is twice the number of the first heat exchange channels 123 of the second heat exchange element 100b. It can be understood that the flow distance of the heat exchange medium in the first heat exchange element 100a and the second heat exchange element 100b is roughly equal to the length of the first heat exchange channel 123 multiplied by the number of the first heat exchange channels 123, that is, the flow distance of the heat exchange medium in the first heat exchange element 100a is twice the flow distance of the heat exchange medium in the second heat exchange element 100b.

[0259] The cross-sectional area of ​​the first heat exchange channel 123 of the first heat exchange element 100a is half of the cross-sectional area of ​​the first heat exchange channel 123 of the second heat exchange element 100b; it can be understood that the flow area of ​​the heat exchange medium in the first heat exchange element 100a is half of the flow area of ​​the heat exchange medium in the second heat exchange element 100b, and at the same time, the flow distance of the heat exchange medium in the first heat exchange element 100a is twice the flow distance of the heat exchange medium in the second heat exchange element 100b, so that the resistance of the heat exchange medium flowing into the first heat exchange element 100a is more than 4 times the resistance of the heat exchange medium flowing into the second heat exchange element 100b, which can greatly improve the uneven distribution of the heat exchange medium before and after the heat exchange component 1, thereby effectively improving the temperature difference between different rows of battery cells.

[0260] In another embodiment of the present application, the first inlet pipe 310 of the heat exchange component 1 is provided to be higher than the first outlet pipe 320. With this design, the heat exchange medium flows into the heat exchange element 100 from a lower point and then flows out of the heat exchange element 100 from a higher point, which is beneficial to the discharge of gas in the liquid heat exchange medium and improves the heat exchange effect.

[0261] In another embodiment of the present application, in combination with Figures 8 and 9, a heat exchange assembly 1 is provided, which includes a second inlet pipe 410, a second outlet pipe 431, an outlet pipe assembly 430 and at least two of the above-mentioned heat exchange components 100; the first inlet 1101 and the third inlet 211 are both connected to the second inlet pipe 410, the second inlet 141 and the fourth inlet 221 are both connected to the third inlet pipe 420, and the first outlet 1102, the second outlet 142, the third outlet 212 and the fourth outlet 222 are all connected to the outlet pipe assembly 430.

[0262] The second inlet pipe 410 refers to the pipe through which the heat exchange medium flows before flowing into the first inlet 1101 and the third inlet 211 .

[0263] The third inlet pipe 420 refers to the pipe through which the heat exchange medium flows before flowing into the second inlet 141 and the fourth inlet 221 .

[0264] The outlet pipe assembly 430 refers to the pipe through which the heat exchange medium flows after flowing out of the first outlet 1102 , the second outlet 142 , the third outlet 212 and the fourth outlet 222 .

[0265] The first inlet 1101 and the third inlet 211 are both connected to the second inlet pipe 410, the second inlet 141 and the fourth inlet 221 are both connected to the third inlet pipe 420, and the first outlet 1102, the second outlet 142, the third outlet 212 and the fourth outlet 222 are all connected to the outlet pipe assembly 430. It can be understood that a stream of heat exchange medium can flow from the second inlet pipe 410 into the first inlet 1101 and the third inlet 211, and then flow into the first heat exchange channel 123 and the third heat exchange channel 231 one by one, and then, They flow out from the first outlet 1102 and the fourth outlet 222 one by one. Similarly, another stream can flow into the second inlet 141 and the fourth inlet 221 from the third inlet pipe 420, and then flow into the second heat exchange channel 124 and the fourth heat exchange channel 232 one by one. Then, they flow out from the second outlet 142 and the third outlet 212 one by one. Finally, the heat exchange medium flowing out from the first outlet 1102, the second outlet 142, the third outlet 212 and the fourth outlet 222 are gathered in the outlet pipe assembly 430 and flow out together.

[0266] In the heat exchange assembly 1 of the embodiment of the present application, two heat exchange media with opposite flows flow in each heat exchange element 100, so the comprehensive heat exchange effect of the battery cells in the same row is more uniform, and the temperature difference effect of the battery cells in the same row is better. In addition, the second inlet pipe 410, the third inlet pipe 420 and the outlet pipe assembly 430 are used to connect the heat exchange elements 100, which has a simple structure and is convenient for processing and manufacturing.

[0267] In another embodiment of the present application, the multiple heat exchange elements 100 of the heat exchange assembly 1 are arranged at intervals along the second direction, and the multiple heat exchange elements 100 are divided into a third heat exchange module 1003 and a fourth heat exchange module 1004 arranged in sequence along the second direction. The heat exchange element 100 in the third heat exchange module 1003 is a third heat exchange element 100c; the heat exchange element 100 in the fourth heat exchange module 1004 is a fourth heat exchange element 100d; the third heat exchange element 100c is the above-mentioned heat exchange element 100, and the fourth heat exchange element 100d is the above-mentioned heat exchange element 100; the first inlet 1101 and the third inlet 211 are connected to each second inlet pipe 410 in sequence along the second direction, and the second inlet 141 and the fourth inlet 221 are connected to the third inlet pipe 420 in sequence along the second direction.

[0268] The heat exchange elements 100 are arranged at intervals along the second direction. For example, as shown in Figure 9, the second direction is the positive direction of the Y-axis, and multiple heat exchange elements 100 are arranged at intervals along the positive direction of the Y-axis, that is, multiple heat exchange elements 100 are arranged at intervals from front to back. The gap between two adjacent heat exchange elements 100 can accommodate the same row of battery cells, and the two heat exchange elements 100 exchange heat on opposite sides of this row of battery cells.

[0269] The multiple heat exchangers 100 of the heat exchange assembly 1 are divided into a third heat exchange module 1003 and a third heat exchange module 1003 arranged in sequence along the second direction. It can be understood that the heat exchangers 100 located on the front side form the first heat exchange module 1001, and the heat exchangers 100 located on the rear side (the remaining heat exchangers 100) form the second heat exchange module 1002. For example, as shown in Figure 9, the heat exchangers 100 in the heat exchange assembly 1 are divided equally to obtain the third heat exchange module 1003 and the fourth heat exchange module 1004. The number of heat exchangers 100 is ten, the first five heat exchangers 100 constitute the third heat exchange module 1003, and the last five heat exchangers 100 constitute the fourth heat exchange module 1004. Of course, other divisions can be used in other embodiments, and the specific selection can be made according to actual needs and is not limited here. The third heat exchange module 1003 may include one, two, three, or more than four heat exchangers 100.

[0270] The first inlet 1101 and the third inlet 211 are connected to the second inlet pipe 410 in sequence along the second direction, and the second inlet 141 and the fourth inlet 221 are connected to the third inlet pipe 420 in sequence along the second direction; for example, as shown in Figure 8, the first inlet 1101 and the third inlet 211 are connected to the second inlet pipe 410 in sequence from front to back, and the second inlet pipe 410 has a simple layout and is convenient for processing and manufacturing; the second inlet 141 and the fourth inlet 221 are connected to the second inlet pipe 410 in sequence from front to back, and the third inlet pipe 420 has a simple layout and is convenient for processing and manufacturing.

[0271] In another embodiment of the present application, the heat exchange medium in the second inlet pipe 410 of the heat exchange assembly 1 flows along the second direction, and the cross-sectional area of ​​the first heat exchange channel 123 is smaller than the cross-sectional area of ​​the third heat exchange channel 231.

[0272] The heat exchange medium in the second inlet pipe 410 flows along the second direction. It can be understood that the heat exchange medium in the second inlet pipe 410 flows into the first inlet 1101 and the third inlet 211 in sequence from front to back.

[0273] It should be noted here that during the flow of the heat exchange medium in the second inlet pipe 410 from front to back, the resistance of the heat exchange medium entering the third heat exchange element 100c is small, while the resistance of the heat exchange medium flowing into the fourth heat exchange element 100d is large, so that the front and rear flow distribution of the heat exchange component 1 is more in the front and less in the back, resulting in a large temperature difference between different rows of battery cells.

[0274] The cross-sectional area of ​​the third heat exchange channel 231 refers to the flow area of ​​the heat exchange medium in the third heat exchange channel 231; for example, the cross-sectional area of ​​the third heat exchange channel 231 refers to a plane figure obtained by cutting the third heat exchange channel 231 with a plane perpendicular to the X-axis direction, and the area of ​​the plane figure is the cross-sectional area of ​​the third heat exchange channel 231.

[0275] The cross-sectional area of ​​the first heat exchange channel 123 is smaller than the cross-sectional area of ​​the third heat exchange channel 231. It is understood that the smaller cross-sectional area of ​​the first heat exchange channel 123 within the third heat exchange element 100c and the larger cross-sectional area of ​​the third heat exchange channel 231 within the fourth heat exchange element 100d increase the resistance to the heat exchange medium flowing into the first heat exchange channel 123 and reduce the resistance to the heat exchange medium flowing into the third heat exchange channel 231. This in turn reduces the flow rate of the heat exchange medium flowing into the third heat exchange element 100c while increasing the flow rate of the heat exchange medium flowing into the fourth heat exchange element 100d. This improves the uneven front-to-back distribution of the heat exchange medium within the heat exchange assembly 1 and, in turn, improves the temperature difference between different rows of battery cells.

[0276] In another embodiment of the present application, in combination with Figures 10 and 11, the length of the first heat exchange channel 123 of the heat exchange component 1 provided is equal to the length of the third heat exchange channel 231, the number of first heat exchange channels 123 is twice the number of third heat exchange channels 231, and the cross-sectional area of ​​the first heat exchange channel 123 is half the cross-sectional area of ​​the third heat exchange channel 231.

[0277] The length of the first heat exchange channel 123 is equal to the length of the third heat exchange channel 231, and the number of the first heat exchange channels 123 is twice the number of the third heat exchange channels 231. It can be understood that the flow distance of the heat exchange medium flowing out of the second inlet pipe 410 in the third heat exchange element 100c is roughly equal to the length of the first heat exchange channel 123 multiplied by the number of the first heat exchange channels 123, and the flow distance of the heat exchange medium flowing out of the second inlet pipe 410 in the fourth heat exchange element 100d is roughly equal to the length of the third heat exchange channel 231 multiplied by the number of the third heat exchange channels 231. When the length of the first heat exchange channel 123 is equal to the length of the third heat exchange channel 231, the flow distance of the heat exchange medium flowing out of the second inlet pipe 410 in the third heat exchange element 100c is twice the flow distance of the heat exchange medium flowing out of the second inlet pipe 410 in the fourth heat exchange element 100d.

[0278] The cross-sectional area of ​​the first heat exchange channel 123 is half of the cross-sectional area of ​​the third heat exchange channel 231. It can be understood that the flow area of ​​the heat exchange medium in the first heat exchange channel 123 is half of the flow area of ​​the heat exchange medium in the third heat exchange channel 231. At the same time, the flow distance of the heat exchange medium flowing out of the second inlet pipe 410 in the third heat exchange element 100c is twice the flow distance of the heat exchange medium flowing out of the second inlet pipe 410 in the fourth heat exchange element 100d. As a result, the resistance of the heat exchange medium flowing out of the second inlet pipe 410 into the third heat exchange element 100c is more than 4 times the resistance of the heat exchange medium flowing out of the second inlet pipe 410 into the fourth heat exchange element 100d. This can greatly improve the uneven distribution of the heat exchange medium in front and behind the heat exchange component 1, thereby effectively improving the temperature difference between different rows of battery cells.

[0279] In another embodiment of the present application, as shown in Figures 10 and 11, the heat exchange medium in the third inlet pipe 420 of the heat exchange component 1 flows along the second direction, and the cross-sectional area of ​​the second heat exchange channel 124 is smaller than the cross-sectional area of ​​the fourth heat exchange channel 232.

[0280] The heat exchange medium in the third inlet pipe 420 flows along the second direction. It can be understood that the heat exchange medium in the third inlet pipe 420 flows into the second inlet 141 and the fourth inlet 221 from front to back in sequence.

[0281] It should be noted here that during the flow of the heat exchange medium in the third inlet pipe 420 from front to back, the resistance of the heat exchange medium entering the third heat exchange element 100c is small, while the resistance of the heat exchange medium flowing into the fourth heat exchange element 100d is large, which makes the front and rear flow distribution of the heat exchange component 1 more in the front and less in the back, resulting in a large temperature difference between different rows of battery cells.

[0282] The cross-sectional area of ​​the second heat exchange channel 124 refers to the flow area of ​​the heat exchange medium in the second heat exchange channel 124; for example, the cross-sectional area of ​​the second heat exchange channel 124 refers to a plane figure obtained by cutting the second heat exchange channel 124 with a plane perpendicular to the X-axis direction, and the area of ​​the plane figure is the cross-sectional area of ​​the second heat exchange channel 124.

[0283] The cross-sectional area of ​​the fourth heat exchange channel 232 refers to the flow area of ​​the heat exchange medium in the fourth heat exchange channel 232. For example, the cross-sectional area of ​​the fourth heat exchange channel 232 refers to a plane figure obtained by cutting the fourth heat exchange channel 232 with a plane perpendicular to the X-axis direction. The area of ​​the plane figure is the cross-sectional area of ​​the fourth heat exchange channel 232.

[0284] The cross-sectional area of ​​the second heat exchange channel 124 is smaller than the cross-sectional area of ​​the fourth heat exchange channel 232. It can be understood that the cross-sectional area of ​​the second heat exchange channel 124 in the third heat exchange element 100c is small, and the cross-sectional area of ​​the fourth heat exchange channel 232 in the fourth heat exchange element 100d is large, thereby increasing the resistance of the heat exchange medium flowing into the second heat exchange channel 124 and reducing the resistance of the heat exchange medium flowing into the fourth heat exchange channel 232, thereby reducing the flow rate of the heat exchange medium flowing into the third heat exchange element 100c and increasing the flow rate of the heat exchange medium flowing into the fourth heat exchange element 100d, thereby improving the uneven distribution of the heat exchange medium in the heat exchange assembly 1, and thereby improving the temperature difference between different rows of battery cells.

[0285] In another embodiment of the present application, in combination with Figures 10 and 11, the length of the second heat exchange channel 124 of the heat exchange component 1 provided is equal to the length of the fourth heat exchange channel 232, the number of the second heat exchange channels 124 is twice the number of the fourth heat exchange channels 232, and the cross-sectional area of ​​the second heat exchange channel 124 is half the cross-sectional area of ​​the fourth heat exchange channel 232.

[0286] The length of the second heat exchange channel 124 is equal to the length of the fourth heat exchange channel 232, and the number of the second heat exchange channels 124 is twice the number of the fourth heat exchange channels 232. It can be understood that the flow distance of the heat exchange medium flowing out of the third inlet pipe 420 in the third heat exchange element 100c is roughly equal to the length of the second heat exchange channel 124 multiplied by the number of the second heat exchange channels 124, and the flow distance of the heat exchange medium flowing out of the third inlet pipe 420 in the fourth heat exchange element 100d is roughly equal to the length of the fourth heat exchange channel 232 multiplied by the number of the fourth heat exchange channels 232. When the length of the second heat exchange channel 124 is equal to the length of the fourth heat exchange channel 232, the flow distance of the heat exchange medium flowing out of the third inlet pipe 420 in the third heat exchange element 100c is twice the flow distance of the heat exchange medium flowing out of the third inlet pipe 420 in the fourth heat exchange element 100d.

[0287] The cross-sectional area of ​​the second heat exchange channel 124 is half of the cross-sectional area of ​​the fourth heat exchange channel 232. It can be understood that the flow area of ​​the heat exchange medium in the second heat exchange channel 124 is half of the flow area of ​​the heat exchange medium in the fourth heat exchange channel 232. At the same time, the flow distance of the heat exchange medium flowing out of the third inlet pipe 420 in the third heat exchange element 100c is twice the flow distance of the heat exchange medium flowing out of the third inlet pipe 420 in the fourth heat exchange element 100d. As a result, the resistance of the heat exchange medium flowing out of the third inlet pipe 420 into the third heat exchange element 100c is more than 4 times the resistance of the heat exchange medium flowing out of the third inlet pipe 420 into the fourth heat exchange element 100d. This can greatly improve the uneven distribution of the heat exchange medium in front and behind the heat exchange component 1, thereby effectively improving the temperature difference between different rows of battery cells.

[0288] In another embodiment of the present application, in combination with Figures 8 and 9, the outlet pipe assembly 430 of the heat exchange component 1 provided includes a second outlet pipe 431 and a third outlet pipe 432; the first outlet 1102 and the third outlet 212 are both connected to the second outlet pipe 431, and the second outlet 142 and the fourth outlet 222 are both connected to the third outlet pipe 432; the second outlet pipe 431 and the second inlet pipe 410 are located on the same side of the heat exchange component 1, and the third outlet pipe 432 and the third inlet pipe 420 are located on the other side of the heat exchange component 1.

[0289] The second outlet pipe 431 refers to the pipe through which the heat exchange medium flows after flowing out of the first outlet 1102 and the third outlet 212 .

[0290] The third outlet pipe 432 refers to the pipe through which the heat exchange medium flows after flowing out of the second outlet 142 and the fourth outlet 222 .

[0291] The first outlet 1102 and the third outlet 212 are both connected to the second outlet pipe 431, and the second outlet 142 and the fourth outlet 222 are both connected to the third outlet pipe 432; it can be understood that the heat exchange medium flowing out of the first heat exchange channel 123 and the heat exchange medium flowing out of the third heat exchange channel 231 flow into the second outlet pipe 431 and are gathered and flow out, and the heat exchange medium flowing out of the second heat exchange channel 124 and the heat exchange medium flowing out of the fourth heat exchange channel 232 flow into the third outlet pipe 432 and are gathered and then flow out.

[0292] The second outlet pipe 431 and the second inlet pipe 410 are located on the same side of the heat exchange component 1, and the third outlet pipe 432 and the third inlet pipe 420 are located on the other side of the heat exchange component 1. For example, as shown in Figure 8, the second outlet pipe 431 and the second inlet pipe 410 are located on the left side of the heat exchange component 1, and the third outlet pipe 432 and the third inlet pipe 420 are located on the right side of the heat exchange component 1. The layout of the pipelines is simple. In addition, the inlet of the third heat exchange component 100c and the outlet of the fourth heat exchange component 100d can be cleverly connected to each other, and the outlet of the third heat exchange component 100c is connected to the outlet on the fourth heat exchange component 100d to each other. The structure is clever and simple.

[0293] In another embodiment of the present application, the first outlet pipe 320, the second inlet pipe 410, the first outlet pipe 320 and the second inlet pipe 410 of the heat exchange component 1 are provided and are alternately arranged in sequence on opposite sides of the heat exchange component 1 along the height direction of the second heat exchange body 230. With this design, the pipeline layout is simple and the overall structure is compact, which is beneficial to improving the energy density of the battery. It can also cleverly connect the third heat exchange component 100c and the fourth heat exchange component 100d to achieve heat exchange of the battery unit.

[0294] In another embodiment of the present application, the flow direction of the heat exchange medium in the second inlet pipe 410 of the heat exchange assembly 1 is opposite to the flow direction of the heat exchange medium in the third inlet pipe 420 .

[0295] The flow direction of the heat exchange medium in the second inlet pipe 410 is opposite to the flow direction of the heat exchange medium in the third inlet pipe 420. For example, the heat exchange medium in the second inlet pipe 410 flows from front to back, so the flow distribution of the heat exchange medium flowing out of the second inlet pipe 410 in the heat exchange component 1 is more in the front and less in the back; and the heat exchange medium in the third inlet pipe 420 flows from back to front, so the flow distribution of the heat exchange medium flowing out of the third inlet pipe 420 in the heat exchange component 1 is less in the front and more in the back. In this way, the overall flow of the heat exchange medium in the front and back of the entire heat exchange component 1 is uniformed, thereby effectively improving the temperature difference between different rows of battery cells.

[0296] In one embodiment, as shown in Figures 4 and 5, the heat exchange assembly 1 includes ten heat exchange elements 100 arranged in sequence from front to back, wherein the first five heat exchange elements 100 are first heat exchange elements 100a, and the last five heat exchange elements 100 are second heat exchange elements 100b.

[0297] In this embodiment, for example, as shown in FIG6 , the left and right ends of the first heat exchange body 120 in the first heat exchange element 100a are connected to the first collector 110 and the connecting piece 130, respectively. The first heat exchange body 120 is configured with four first heat exchange channels 123 arranged in parallel from top to bottom. Two second partitions 1107 arranged up and down are provided in the first collector 110. The two second partitions 1107 divide the inner cavity of the first collector 110 into a fifth cavity 1108, a second connecting piece 130, and a fifth cavity 1109, which are distributed from bottom to top. The first inlet 1101 is configured on the front wall of the fifth cavity 1108, and the first outlet 1102 is configured on the front wall of the sixth cavity 1109. The second partition plate 1107 located below is connected to the partition plate 126 between the two first heat exchange channels 123 below, and the second partition plate 1107 located above is connected to the partition plate 126 between the two first heat exchange channels 123 above, so that the fifth cavity 1108 is connected to the bottom first heat exchange channel 123. 3, the left ends of the two first heat exchange channels 123 in the middle are connected through the second connecting channel 1103, and the sixth cavity 1109 is connected to the topmost first heat exchange channel 123; a third partition plate 132 is constructed in the connecting member 130, and the third partition plate 132 divides the inner cavity of the connecting member 130 into upper and lower first connecting channels 131. The third partition plate 132 is connected to the partition plate 126 located between the two first heat exchange channels 123 in the middle, so that the upper first connecting channel 131 is connected to the right ends of the two first heat exchange channels 123 in the upper position, and the lower first connecting channel 131 is connected to the right ends of the two first heat exchange channels 123 in the lower position, so that the four first heat exchange channels 123 are connected in sequence. After the heat exchange medium flows into the heat exchange member 100 from the first inlet 1101, it flows through the four first heat exchange channels 123 in sequence and flows out from the second outlet 142. The flow path of the heat exchange medium in the heat exchange member 100 is also shown in the direction indicated by the hollow arrow in Figure 6.

[0298] In this embodiment, for example, as shown in FIG7 , the left and right ends of the first heat exchange body 120 in the second heat exchange element 100b are respectively connected to the first collector 110 and the connecting piece 130. The first heat exchange body 120 is constructed with two first heat exchange channels 123 arranged in parallel from top to bottom. A fourth partition 1110 is provided in the first collector 110. The second partition 1107 divides the inner cavity of the first collector 110 into a seventh cavity 1111 and an eighth cavity 1112 distributed from bottom to top. The front wall of the seventh cavity 1111 is constructed with a first inlet 1101, and the front wall of the eighth cavity 1112 is constructed with a first outlet 1102. The fourth partition 1110 is connected to the first and second heat exchange channels 123 arranged in parallel from top to bottom. The partition plates 126 between the channels 123 are butted together so that the seventh cavity 1111 is connected to the left end of the first heat exchange channel 123 below, and the eighth cavity 1112 is connected to the left end of the first heat exchange channel 123 above. A first connecting channel 131 is provided in the connecting member 130, and the first connecting channel 131 connects the right ends of the two first heat exchange channels 123, thereby realizing the sequential connection of the two first heat exchange channels 123. After the heat exchange medium flows into the heat exchange member 100 from the first inlet 1101, it flows through the two first heat exchange channels 123 in sequence and flows out from the second outlet 142. The flow path of the heat exchange medium in the heat exchange member 100 can also be referred to the direction indicated by the hollow arrow in Figure 7.

[0299] In this embodiment, in combination with Figures 4 and 5, the heat exchange component 1 also includes a first inlet pipe 310 and a first outlet pipe 320 located on the left side. The first outlet pipe 320 is located above the first inlet pipe 310 to facilitate exhaust. In addition, the first inlet pipe 310 can connect the ten first inlets 1101 from front to back, and the first outlet pipe 320 can connect the ten first outlets 1102 from front to back, thereby realizing the connection of the ten heat exchange components 100.

[0300] In another embodiment, as shown in FIG8 and FIG9 , the heat exchange assembly 1 includes ten heat exchange elements 100 arranged in sequence from front to back, wherein the first five heat exchange elements 100 are third heat exchange elements 100c, and the last five heat exchange elements 100 are fourth heat exchange elements 100d.

[0301] In this embodiment, as shown in FIG10 , the left and right ends of the first heat exchange body 120 in the third heat exchange element 100c are respectively connected to the first collector 110 and the second collector 140, and the structure of the first collector 110 is rotationally symmetrical with the second collector 140. The first heat exchange body 120 is constructed with two first heat exchange channels 123 and two second heat exchange channels 124 arranged alternately in parallel from bottom to top. As shown in FIG12 , FIG13 and FIG17 , the front wall surface of the inner cavity of the first collector 110 is constructed with first heat exchange channels 123 and second heat exchange channels 124 arranged in parallel from bottom to top. Inlet 1101 and first outlet 1102, a fifth separator 1113 and a surrounding plate 1114 are constructed in the first current collector 110, the fifth separator 1113 divides the inner cavity of the first current collector 110 into a first cavity 1105 and a ninth cavity 1115 distributed from bottom to top, the first cavity 1105 is connected to the first outlet 1102, the ninth cavity 1115 is connected to the first inlet 1101, the surrounding plate 1114 is located in the ninth cavity 1115, and the surrounding plate 1114 is arranged outside the first inlet 1101 and has a U-shaped structure, and

[0302] The U-shaped opening faces the first heat exchange body 120, and the inner wall of the enclosing plate 1114 is enclosed to form the second cavity 1106. The outer wall of the enclosing plate 1114, the fifth partition plate 1113 and the inner wall of the ninth cavity 1115 are enclosed together to form the third connecting channel 1104. The fifth partition plate 1113 is connected to the partition plate 126 between the first heat exchange channel 123 and the second heat exchange channel 124 below, and the two ends of the enclosing plate 1114 are respectively connected to the partition plate 126 between the first heat exchange channel 123 and the second heat exchange channel 124 in the middle and the partition plate 126 between the first heat exchange channel 123 and the second heat exchange channel 124 above. , so that the first cavity 1105 is connected to the left end of the first heat exchange channel 123 located below, the two ends of the second connecting channel 1103 are respectively connected to the left ends of the two second heat exchange channels 124, and the second cavity 1106 is connected to the right end of the first heat exchange channel 123 located above. Since the first collector 110 and the second collector 140 are rotationally symmetrical, the second collector 140 is also connected to the right ends of the two first heat exchange channels 123 and the right ends of the two second heat exchange channels 124 in a rotationally symmetrical manner, so as to realize the sequential connection of the two first heat exchange channels 123 and the sequential connection of each second heat exchange channel 124 in the following year. After a heat exchange medium flows into the heat exchange element 100 from the first inlet 1101 on the left, it flows through the two first heat exchange channels 123 in sequence and flows out from the first outlet 1102 on the left. After another heat exchange medium enters from the second inlet 141 on the right, it flows through the two second heat exchange channels 124 in sequence and flows out from the second outlet 142 on the right to improve the temperature difference between the battery cells in the same row. In addition, the heat exchange medium in the heat exchange element 100 flows in from one end and then flows out from the same end; the flow path of the heat exchange medium in the heat exchange element 100 can also be referred to the direction indicated by the hollow arrow in Figure 10.

[0303] In this embodiment, as shown in Figure 11, the left and right ends of the second heat exchange body 230 in the fourth heat exchange element 100d are respectively connected to the third collector 210 and the fourth collector 220, and the third collector 210 and the fourth collector 220 are rotationally symmetrical. The second heat exchange body 230 is configured with a third heat exchange channel 231 and a fourth heat exchange channel 232 arranged in parallel up and down. As shown in Figures 14, 15 and 18, a first partition 213 is provided in the third collector 210. The first partition 213 divides the inner cavity of the third collector 210 into a third cavity 214 and a fourth cavity 215 arranged up and down. The front wall of the third cavity 214 is configured with a third inlet 211, and the front wall of the fourth cavity 215 is configured with a third outlet 212. The first partition 213 is connected to the partition plate 126 located between the first heat exchange channel 123 and the third heat exchange channel 231, so that the third cavity 2 14 is connected to the left end of the third heat exchange channel, and the fourth cavity 215 is connected to the left end of the fourth heat exchange channel 232; and since the third current collector 210 and the fourth current collector 220 are rotationally symmetrical, the fourth current collector 220 is also connected to the right end of the third heat exchange channel and the right end of the fourth heat exchange channel 232 in a rotationally symmetrical manner, so that a stream of heat exchange medium flows in from the third inlet 211 on the left, passes through the third heat exchange channel 231, and then flows out from the fourth outlet 222 on the right, while another stream of heat exchange medium flows in from the fourth inlet 221 at the right end, passes through the fourth heat exchange channel 232, and then flows out from the third outlet 212 on the left, thereby improving the temperature difference of battery cells in the same row, and the heat exchange medium of the heat exchange element 100 flows in from one end of the heat exchange element 100 and flows out from the other end; the flow path of the heat exchange medium in the heat exchange element 100 is also referred to the direction indicated by the hollow arrow in Figure 11.

[0304] In this embodiment, as shown in Figures 8 and 16, the second inlet pipe 410 and the second outlet pipe 431 are arranged up and down and are located on the left side of the heat exchanger 100. The first inlet 1101 and the third inlet 211 are both connected to the second inlet pipe 410, the first outlet 1102 and the third outlet 212 are both connected to the second outlet pipe 431, the third outlet pipe 432 and the third inlet pipe 420 are arranged up and down and are located on the right side of the heat exchanger 100, the fourth outlet 222 and the second outlet 142 are both connected to the third outlet pipe 432, the fourth inlet 221 and the second inlet 141 are both connected to the third inlet pipe 420, a portion of the heat exchange medium in the second inlet pipe 410 enters the first heat exchange channel 123 through the first inlet 1101, and then flows through the two first heat exchange channels 123 and then flows into the second outlet pipe 431. The second inlet pipe Another portion of the heat exchange medium in 410 enters the third heat exchange channel 231 through the third inlet 211, flows through the third heat exchange channel 231, and then flows into the third outlet pipe 432; a portion of the heat exchange medium in the third inlet pipe 420 flows into the second heat exchange channel 124 through the second outlet 142, then flows through the two second heat exchange channels 124, and then flows into the third outlet pipe 432. Another portion of the heat exchange medium in the third inlet pipe 420 flows into the fourth heat exchange channel 232 through the fourth inlet 221, then flows through the fourth heat exchange channel 232, and then flows into the second outlet pipe 431. In this way, the third heat exchange element 100c, where the heat exchange medium enters and exits at the same end, and the fourth heat exchange element 100d, where the heat exchange medium enters and exits at one end, are cleverly connected to improve the temperature difference between the battery cells in the same row, and the entire structure is simple.

[0305] In this embodiment, as shown in Figures 12 to 15, eight heat exchange sub-channels 125 are constructed in the first heat exchange body 120 and the second heat exchange body 230. As shown in Figures 12 and 13, one first heat exchange channel 123 includes two heat exchange sub-channels 125, and one second heat exchange channel 124 includes two heat exchange sub-channels 125. As shown in Figures 14 and 15, the third heat exchange channel 231 includes four heat exchange sub-channels 125, and the fourth heat exchange channel 232 includes four heat exchange sub-channels 125. The cross-sectional area of ​​the first heat exchange channel 123 is equal to the cross-sectional area of ​​the heat exchange sub-channel 125 multiplied by the cross-sectional area of ​​the heat exchange sub-channels in the first heat exchange channel 123. Similarly, the cross-sectional area of ​​the second heat exchange channel 124, the cross-sectional area of ​​the third heat exchange channel 231, and the cross-sectional area of ​​the fourth heat exchange channel 232 are all equal to the cross-sectional area of ​​the heat exchange sub-channel 125 multiplied by the number of heat exchange sub-channels 125 in the corresponding heat exchange channel. Then, when the cross-sectional areas of the heat exchange sub-channels 125 are equal, the ratio of the cross-sectional areas of the heat exchange channels is equal to the ratio of the numbers of the corresponding heat exchange sub-channels 125. Therefore, the cross-sectional area of ​​the first heat exchange channel 123 is half of the cross-sectional area of ​​the third heat exchange channel 231, and the cross-sectional area of ​​the second heat exchange channel 124 is half of the cross-sectional area of ​​the fourth heat exchange channel 232.

[0306] In another embodiment of the present application, a battery is provided, comprising the above-mentioned heat exchange assembly 1 .

[0307] The battery of the embodiment of the present application adopts the above-mentioned heat exchange component 1, the temperature difference between the battery cells in the same row is small, and the battery performance is good.

[0308] Since the battery of the embodiment of the present application can adopt all the technical solutions of any one or several of the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above corresponding embodiments, which will not be described one by one here.

[0309] In another embodiment of the present application, a vehicle is provided, comprising the above-mentioned battery.

[0310] The vehicle of the embodiment of the present application uses the above-mentioned battery, which has good performance and is also beneficial to improving the performance of the vehicle.

[0311] Since the battery of the embodiment of the present application can adopt all the technical solutions of any one or several of the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above corresponding embodiments, which will not be described one by one here.

[0312] In another embodiment of the present application, an electrical device is provided, comprising the above-mentioned battery.

[0313] The electrical device of the embodiment of the present application uses the above-mentioned battery, and the battery has good performance, which is also beneficial to improving the performance of the electrical device.

[0314] Since the electrical device of the embodiment of the present application can adopt all the technical solutions of any one or several of the above embodiments, it also has all the beneficial effects brought by the technical solutions of the above corresponding embodiments, which will not be described one by one here.

[0315] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A heat exchange component, wherein: It includes a first fluid collector and a first heat exchanger. The first heat exchanger is configured with a first end and a second end disposed opposite to each other. At least two first heat exchange channels extending in the direction from the first end to the second end are configured in the first heat exchanger, and each of the first heat exchange channels is sequentially communicated. The first fluid collector is connected to the first end. A first inlet and a first outlet are configured in the first fluid collector. The first inlet is communicated with the first of the first heat exchange channels and is used for allowing a heat exchange medium to flow into the first of the first heat exchange channels. The first outlet is communicated with the last of the first heat exchange channels and is used for allowing the heat exchange medium in the last of the first heat exchange channels to flow out.

2. The heat exchange element according to claim 1, wherein: The heat exchanger further includes a connecting member. The connecting member is connected to the second end. At least one first connecting channel is configured in the connecting member. The ends of every two of the first heat exchange channels close to the second end are communicated through one of the first connecting channels.

3. The heat exchange member according to claim 1 or 2, wherein: The number of the first heat exchange channels is greater than two. At least one second connecting channel is further configured in the first fluid collector. The ends of every two of the first heat exchange channels close to the first end are communicated through one of the second connecting channels.

4. The heat exchange member according to claim 1, wherein: The heat exchanger further includes a second fluid collector. The second fluid collector is installed at the second end. The second fluid collector is configured with a second inlet and a second outlet. At least two second heat exchange channels extending in the direction from the first end to the second end are further configured in the first heat exchanger, and each of the second heat exchange channels is sequentially communicated. Wherein, the second inlet is communicated with the first of the second heat exchange channels and is used for allowing a heat exchange medium to flow into the first of the second heat exchange channels. The second outlet is communicated with the last of the second heat exchange channels and is used for allowing the heat exchange medium in the last of the second heat exchange channels to flow out.

5. The heat exchange member according to claim 4, wherein: At least one third connecting channel is configured in the first fluid collector. The ends of every two of the second heat exchange channels close to the first end are communicated through one of the third connecting channels.

6. The heat exchange member according to claim 4 or 5, wherein: At least one fourth connecting channel is configured in the second fluid collector. The ends of every two of the first heat exchange channels close to the second end are communicated through one of the fourth connecting channels.

7. The heat exchange element according to claim 5, wherein: The first heat exchange channels and the second heat exchange channels are arranged alternately and in parallel.

8. The heat exchange member according to claim 7, wherein: The number of the first heat exchange channels is two, and the number of the second heat exchange channels is two. A first cavity and a second cavity are configured in the first fluid collector. The first cavity is communicated with the first outlet and the corresponding first heat exchange channel. The second cavity is communicated with the first inlet and the other first heat exchange channel. The first cavity and the second cavity are arranged along the alternating arrangement direction of the first heat exchange channels and the second heat exchange channels. The third connecting channel is wound around the outside of the second cavity. The second cavity is located between the two ends of the third connecting channel. One end of the third connecting channel is located between the first cavity and the second cavity, and the two ends of the third connecting channel are respectively communicated with the two second heat exchange channels.

9. The heat exchange element according to any one of claims 4 to 8, wherein: The second outlet is higher than the second inlet.

10. The heat exchange member according to any one of claims 4 to 8, wherein: The number of the first heat exchange channels is the same as the number of the second heat exchange channels.

11. The heat exchange element according to any one of claims 4 to 9, wherein: The first fluid collector and the second fluid collector are rotationally symmetric about the first heat exchanger.

12. The heat exchange member according to any one of claims 1 to 10, wherein: The first outlet is higher than the first inlet.

13. A heat exchange component, wherein, It includes a third fluid collector, a fourth fluid collector, and a second heat exchanger. One end of the second heat exchanger is connected to the third fluid collector, and the other end of the second heat exchanger is connected to the fourth fluid collector; the second heat exchanger is configured with a third heat exchange channel and a fourth heat exchange channel; the third fluid collector is configured with a third inlet and a third outlet, the fourth fluid collector is configured with a fourth inlet and a fourth outlet, the third heat exchange channel communicates with the third inlet and the fourth outlet, and the fourth heat exchange channel communicates with the fourth inlet and the third outlet.

14. The heat exchange element according to claim 13, wherein: The number of the third heat exchange channels is multiple, the number of the fourth heat exchange channels is multiple, the third heat exchange channels are sequentially communicated, the fourth heat exchange channels are sequentially communicated, the third inlet communicates with the first of the third heat exchange channels, the fourth outlet communicates with the last of the third heat exchange channels, the fourth inlet communicates with the first of the fourth heat exchange channels, and the third outlet communicates with the last of the fourth heat exchange channels.

15. The heat exchange member according to claim 14, wherein: The number of the third heat exchange channels is the same as the number of the fourth heat exchange channels.

16. The heat exchange member according to claim 14, wherein: The third heat exchange channels and the fourth heat exchange channels are arranged alternately.

17. The heat exchange element according to claim 13, wherein: The number of the third heat exchange channels is one, the number of the fourth heat exchange channels is one, a first partition is configured in the third fluid collector, and the first partition is used to divide the inner cavity of the third fluid collector into a third cavity and a fourth cavity. The third cavity communicates with the third inlet and the third heat exchange channel, and the fourth cavity communicates with the third outlet and the fourth heat exchange channel.

18. The heat exchange member according to any one of claims 13 to 17, wherein: The third fluid collector and the fourth fluid collector are rotationally symmetric about the second heat exchanger.

19. The heat exchange member according to any one of claims 13 to 18, wherein: The fourth outlet is located above the third inlet; and / or, the third outlet is located above the fourth inlet.

20. A heat exchange component, wherein: It includes the heat exchange member according to any one of claims 1 to 19.

21. A heat exchange component, wherein: It includes a first inlet pipe, a first outlet pipe, and at least two heat exchange members according to any one of claims 2 to 3; each of the first inlets is communicated with the first inlet pipe, and each of the first outlets is communicated with the first outlet pipe.

22. The heat exchange component according to claim 21, wherein: Multiple heat exchange members are arranged at intervals along a first direction, the first inlet pipe extends along the first direction and is sequentially communicated with each of the first inlets, and the heat exchange medium in the first inlet pipe flows along the first direction; The multiple heat exchange members of the heat exchange assembly are divided into a first heat exchange module and a second heat exchange module that are sequentially arranged at intervals along the first direction. The heat exchange members in the first heat exchange module are first heat exchange members, and the heat exchange members in the second heat exchange module are second heat exchange members; The cross-sectional area of the first heat exchange channel in the first heat exchange member is smaller than the cross-sectional area of the first heat exchange channel in the second heat exchange member.

23. The heat exchange component according to claim 22, wherein: The number of the first heat exchange channels in the first heat exchange member is twice the number of the first heat exchange channels in the second heat exchange member, and the cross-sectional area of the first heat exchange channel in the first heat exchange member is half of the cross-sectional area of the first heat exchange channel in the second heat exchange member.

24. The heat exchange module according to any one of claims 21 to 23, wherein: The first inlet pipe is higher than the first outlet pipe.

25. A heat exchange component, wherein: The heat exchange assembly includes a second inlet pipe, a second outlet pipe, an outlet pipe assembly, at least one heat exchanger as claimed in any one of claims 4 to 11, and at least one heat exchanger as claimed in any one of claims 13 to 19; The first inlet and the third inlet are both communicated with the second inlet pipe, the second inlet and the fourth inlet are both communicated with the third inlet pipe, and the first outlet, the second outlet, the third outlet and the fourth outlet are all communicated with the outlet pipe assembly.

26. The heat exchange assembly according to claim 25, wherein: A plurality of the heat exchangers are arranged at intervals along the second direction. The plurality of heat exchangers of the heat exchange assembly are divided into a third heat exchange module and a fourth heat exchange module which are arranged at intervals in sequence along the second direction. The heat exchanger in the third heat exchange module is a third heat exchanger; the heat exchanger in the fourth heat exchange module is a fourth heat exchanger; The third heat exchanger is a heat exchanger as claimed in any one of claims 4 to 11, and the fourth heat exchanger is a heat exchanger as claimed in any one of claims 13 to 19; The first inlet and the third inlet are communicated with the second inlet pipe in sequence along the second direction, and the second inlet and the fourth inlet are communicated with the third inlet pipe in sequence along the second direction.

27. The heat exchange assembly according to claim 26, wherein: The heat exchange medium in the second inlet pipe flows along the second direction, and the cross-sectional area of the first heat exchange channel is smaller than the cross-sectional area of the third heat exchange channel.

28. The heat exchange assembly according to claim 27, wherein: The length of the first heat exchange channel is equal to the length of the third heat exchange channel. The number of the first heat exchange channels is twice the number of the third heat exchange channels, and the cross-sectional area of the first heat exchange channel is half of the cross-sectional area of the third heat exchange channel.

29. The heat exchange assembly according to any one of claims 26 to 28, wherein: The heat exchange medium in the third inlet pipe flows along the second direction, and the cross-sectional area of the second heat exchange channel is smaller than the cross-sectional area of the fourth heat exchange channel.

30. The heat exchange component according to claim 29, wherein: The length of the second heat exchange channel is equal to the length of the fourth heat exchange channel. The number of the second heat exchange channels is twice the number of the fourth heat exchange channels, and the cross-sectional area of the second heat exchange channel is half of the cross-sectional area of the fourth heat exchange channel.

31. The heat exchange module according to any one of claims 26 to 30, wherein: The outlet pipe assembly includes a second outlet pipe and a third outlet pipe; The first outlet and the third outlet are both communicated with the second outlet pipe, and the second outlet and the fourth outlet are both communicated with the third outlet pipe; The second outlet pipe and the second inlet pipe are located on the same side of the heat exchange assembly, and the third outlet pipe and the third inlet pipe are located on the other side of the heat exchange assembly.

32. The heat exchange assembly according to claim 31, wherein: The first outlet pipe, the second inlet pipe, the first outlet pipe and the second inlet pipe are alternately arranged in sequence on opposite sides of the heat exchange assembly along the height direction of the second heat exchange body.

33. The heat exchange module according to any one of claims 26 to 28, wherein: The flow direction of the heat exchange medium in the second inlet pipe is opposite to the flow direction of the heat exchange medium in the third inlet pipe.

34. A battery, wherein: Including the heat exchange assembly as claimed in any one of claims 19 to 33.

35. A vehicle, wherein: Including the battery as claimed in claim 34.

36. An electrical device, wherein: Including the battery as claimed in claim 34.

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