Heat exchange module, battery pack and energy storage equipment

Abstract

The utility model discloses a heat exchange module, a battery pack and energy storage equipment. The heat exchange module comprises a heat exchange shell and a heat exchange unit, a containing cavity is formed in the heat exchange shell, the heat exchange shell comprises a first heat exchange side face, a second heat exchange side face and a heat exchange connecting face, the heat exchange connecting face is connected with the first heat exchange side face and the second heat exchange side face, and one of the first heat exchange side face and the second heat exchange side face is provided with a heat exchange protrusion. One module is provided with a heat exchange bulge, the other module is provided with a heat exchange groove, the shape of the heat exchange bulge is matched with that of the heat exchange groove, the heat exchange bulge is used for being embedded with the groove of the other module, and the heat exchange groove is used for being embedded with the bulge of the other module; the heat exchange unit is arranged in the containing cavity. According to the heat exchange module, mutual cooperation between the heat exchange module and the battery module is achieved, flexible placement of the heat exchange module is achieved, more use scenes are met, large-scale production is facilitated, and cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery heat exchange technology, and in particular to a heat exchange module, a battery pack, and an energy storage device. Background Art

[0002] In the prior art, heat exchange modules are often installed separately, either on the ground or on top of the battery modules, lateral to the battery modules. However, this type of installation is too rigid and highly customized. Once the heat exchange module is installed, its position cannot be adjusted, resulting in costly issues. Therefore, there is room for improvement. Utility Model Content

[0003] The present application aims to solve at least one of the above-mentioned technical problems in the prior art to a certain extent. To this end, the present application proposes a heat exchange module that facilitates flexible placement of the heat exchange module, meets more usage scenarios, facilitates large-scale production, and reduces costs.

[0004] The present application also proposes a battery pack having the above-mentioned heat exchange module.

[0005] This application also proposes an energy storage device having the above-mentioned battery pack.

[0006] According to an embodiment of the present application, the heat exchange module includes a heat exchange shell and a heat exchange unit, the interior of the heat exchange shell has a accommodating cavity, the heat exchange shell includes a first heat exchange side, a second heat exchange side and a heat exchange connecting surface, the heat exchange connecting surface connects the first heat exchange side and the second heat exchange side, one of the first heat exchange side and the second heat exchange side has a heat exchange protrusion, and the other has a heat exchange groove, the heat exchange protrusion matches the shape of the heat exchange groove, the heat exchange protrusion is used to be embedded with the groove of another module, and the heat exchange groove is used to be embedded with the protrusion of yet another module; the heat exchange unit is arranged in the accommodating cavity; wherein, a medium inlet and a medium outlet are provided on the heat exchange connecting surface, and the medium inlet and the medium outlet are both connected to the heat exchange unit.

[0007] According to the heat exchange module of the embodiment of the present application, by setting heat exchange protrusions and heat exchange grooves, and embedding the heat exchange module with the protrusions or grooves of adjacent modules, the heat exchange module and other modules can be coordinated with each other, and the heat exchange module can be flexibly placed to meet more usage scenarios, facilitate large-scale production, and reduce costs.

[0008] According to some embodiments of the present application, an air inlet and an air outlet are provided on the heat exchange connection surface, and both the air inlet and the air outlet are communicated with the accommodating cavity.

[0009] According to some embodiments of the present application, the heat exchange connection surface includes a heat exchange third side, a heat exchange fourth side, a heat exchange fifth side and a heat exchange sixth side, the heat exchange third side and the heat exchange fourth side are arranged opposite to each other, the heat exchange fifth side and the heat exchange sixth side are arranged opposite to each other, the air inlet is arranged on the heat exchange third side, and the air outlet is arranged on at least one of the heat exchange fourth side, the heat exchange fifth side and the heat exchange sixth side.

[0010] According to some embodiments of the present application, the first heat exchange side and the second heat exchange side are arranged in parallel.

[0011] According to some embodiments of the present application, in a direction perpendicular to the first heat exchange side surface and the second heat exchange side surface, the positions of the heat exchange protrusions and the heat exchange grooves correspond one to one.

[0012] According to some embodiments of the present application, there is at least one heat exchange unit, and each heat exchange unit is connected to the corresponding medium inlet and the medium outlet.

[0013] According to some embodiments of the present application, the medium inlet and the medium outlet are located on the same side.

[0014] According to some embodiments of the present application, the medium inlet and the medium outlet are suitable for being arranged on the same side as the air inlet or the air outlet.

[0015] According to another aspect of the present application, a battery pack includes at least one battery module and at least one of the above-mentioned electric heating modules, wherein the battery module includes a battery shell, wherein a battery cell is arranged inside the battery shell, and the battery shell includes a first battery side and a second battery side, wherein the first battery side and the second battery side are arranged opposite to each other, and one of the first battery side and the second battery side has a battery protrusion, and the other has a battery groove, wherein the heat exchange protrusion matches the shape of the battery groove, and the heat exchange groove matches the shape of the battery protrusion; the heat exchange shell and the adjacent battery shell are engaged with the battery groove through the heat exchange protrusion or the heat exchange groove is engaged with the battery protrusion.

[0016] According to the battery pack of the embodiment of the present application, the heat exchange shell and the adjacent battery shell are interlocked through the heat exchange protrusion and the battery groove, or through the heat exchange groove and the battery protrusion, to achieve mutual cooperation between the heat exchange module and the battery module, and realize flexible placement of the heat exchange module, meet more usage scenarios, facilitate large-scale production, and reduce costs.

[0017] According to some embodiments of the present application, the heat exchange housing is a cuboid, the battery housing is a cuboid, and at least one of the length, width or height of the heat exchange housing and the adjacent battery housing is equal.

[0018] According to some embodiments of the present application, the battery housing further includes a battery connection surface, which connects the first side surface of the battery and the second side surface of the battery. A battery inlet and a battery outlet are provided on the battery connection surface. The battery inlet is connected to the medium outlet through a first pipe, and the battery outlet is connected to the medium inlet through a second pipe.

[0019] According to some embodiments of the present application, there are multiple battery modules, and two adjacent battery modules are engaged with each other through the battery protrusion and the battery groove;

[0020] The heat exchange module is arranged at the same end of the plurality of battery modules; or, the heat exchange module is arranged between two adjacent battery modules.

[0021] An energy storage device according to another embodiment of the present application includes the above-mentioned battery pack.

[0022] According to the energy storage device of the embodiment of the present application, its battery pack realizes mutual cooperation between the heat exchange module and the battery module through the heat exchange protrusion and the battery groove, and the heat exchange groove and the battery protrusion, and realizes flexible placement of the heat exchange module, meets more usage scenarios, facilitates large-scale production, and reduces costs.

[0023] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of a heat exchange module according to some embodiments of the present application;

[0025] Figure 2 is a top view of a heat exchange module according to some embodiments of the present application;

[0026] Figure 3 is a bottom view of a heat exchange module according to some embodiments of the present application;

[0027] Figure 4 is a front view of a heat exchange module according to some embodiments of the present application;

[0028] Figure 5 is a rear view of a heat exchange module according to some embodiments of the present application;

[0029] Figure 6 is a left side view of a heat exchange module according to some embodiments of the present application;

[0030] Figure 7 is a right side view of a heat exchange module according to some embodiments of the present application;

[0031] Figure 8 is a structural diagram of a heat exchange module according to some embodiments of the present application;

[0032] Figure 9 is a structural diagram of a heat exchange module according to some other embodiments of the present application;

[0033] Figure 10 is a schematic diagram of a battery pack according to some embodiments of the present application;

[0034] Figure 11 is a schematic diagram of a battery module according to some embodiments of the present application;

[0035] Figure 12 is a top view of a battery module according to some embodiments of the present application;

[0036] Figure 13 is a bottom view of a battery module according to some embodiments of the present application;

[0037] Figure 14 is a structural diagram of a battery module according to some embodiments of the present application;

[0038] Figure 15 is a schematic diagram of a battery pack according to some other embodiments of the present application;

[0039] Figure 16 is a schematic diagram of a battery pack according to some other embodiments of the present application;

[0040] Figure 17 is a schematic diagram of a battery pack according to some other embodiments of the present application.

[0041] Reference numerals:

[0042] Battery pack 100, heat exchange module 10, battery module 20, heat exchange shell 1, heat exchange first side 11, heat exchange second side 12, heat exchange connecting surface 13, accommodating cavity 14, heat exchange unit 2, heat exchange protrusion 111, heat exchange groove 121, medium inlet 131, medium outlet 132, air inlet 133, air outlet 134, heat exchange third side 135, heat exchange fourth side 136, heat exchange fifth side 137, heat exchange sixth side 138, battery shell 3, battery unit 4, battery first side 31, battery second side 32, battery protrusion 311, battery groove 321, battery connecting surface 33, battery inlet 331, battery outlet 332, first pipe 51, second pipe 52. DETAILED DESCRIPTION

[0043] 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.

[0044] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0045] The following combination Figures 1-15 The heat exchange module 10 according to this embodiment, the battery pack 100 having the heat exchange module 10 , and the energy storage device having the battery pack 100 are described in detail.

[0046] See Figure 1-Figure 3 、 Figure 8 As shown, the heat exchange module 10 according to this embodiment includes a heat exchange housing 1 and a heat exchange unit 2. The heat exchange housing 1 has an interior containing a cavity 14. The heat exchange housing 1 includes a first heat exchange side surface 11, a second heat exchange side surface 12, and a heat exchange connection surface 13. The heat exchange connection surface 13 connects the first heat exchange side surface 11 and the second heat exchange side surface 12. One of the first heat exchange side surface 11 and the second heat exchange side surface 12 has a heat exchange protrusion 111, and the other has a heat exchange groove 121. The heat exchange protrusion 111 matches the shape of the heat exchange groove 121. The heat exchange protrusion 111 is designed to fit with the groove of the other module, and the heat exchange groove 121 is designed to fit with the protrusion of yet another module. The heat exchange unit 2 is disposed within the cavity 14.

[0047] The heat exchange connection surface 13 is provided with a medium inlet 131 and a medium outlet 132, both of which are connected to the heat exchange unit 2. The heat exchange medium enters the heat exchange unit 2 through the medium inlet 131 of the heat exchange module 10, performs heat exchange operations, and is then transported out of the heat exchange module 10 through the medium outlet 132.

[0048] It is understood that the heat exchange medium can be a liquid, gas, or a gas-liquid mixture. The heat exchange operation can be heat exchange between the heat exchange medium and the module being heat exchanged. For example, when the temperature of the heat exchange medium is lower than the temperature of the module being heat exchanged, the heat exchange module 10 cools the other modules; when the temperature of the heat exchange medium is higher than the temperature of the module being heat exchanged, the heat exchange module 10 heats the other modules.

[0049] The number of heat exchange protrusions 111 and heat exchange grooves 121 is N, where N is a positive integer. For example, N can be 1, 2, 3, etc. The shapes of the heat exchange protrusions 111 and the heat exchange grooves 121 can be any mutually interlocking shapes. For example, the heat exchange protrusions 111 and the heat exchange grooves 121 can be cylindrical, conical, truncated cone, hemispherical, polygonal, curved, or a combination of straight lines and curves.

[0050] In some embodiments, the first heat exchange side 11 has four heat exchange protrusions 111, and the second heat exchange side 12 has four heat exchange grooves 121. All heat exchange protrusions 111 are truncated cone-shaped, and the heat exchange grooves 121 are truncated cone-shaped, and the size of the heat exchange grooves 121 matches the size of the heat exchange protrusions 111. The heat exchange module 10 can be installed between any two modules by interlocking the four heat exchange protrusions 111 on the first heat exchange side 11 with the heat exchange grooves 121 of another module, and by interlocking the four heat exchange grooves 121 on the second heat exchange side 12 with the four heat exchange protrusions 111 of yet another module. At this time, the heat exchange medium leaves the heat exchange module 10 through the medium outlet 132 and enters other modules for heat exchange, cooling or heating the other modules in this process. After the heat exchange is completed, the heat exchange medium returns to the heat exchange unit 2 through the medium inlet 131, completing a heat exchange cycle.

[0051] In some embodiments, the heat exchange protrusion 111 is constructed in a truncated cone shape, and the heat exchange groove 121 is in a truncated cone shape. The axis of the truncated cone is perpendicular to the side surface on which it is located, so that the diameter of the end of the heat exchange protrusion 111 connected to the corresponding side surface is larger than the diameter of the end of the heat exchange protrusion 111 separated from the corresponding side surface. In this way, when the heat exchange protrusion 111 and the heat exchange groove 121 are engaged, the heat exchange protrusion 111 can be embedded in the heat exchange groove 121 more quickly.

[0052] In some embodiments not shown in the figures, the first heat exchange side 11 has three heat exchange grooves 121, and the second heat exchange side 12 has three heat exchange protrusions 111. All heat exchange protrusions 111 are cubes, and the heat exchange grooves 121 are cubes, and the side lengths of the heat exchange grooves 121 match the side lengths of the heat exchange protrusions 111. The heat exchange module 10 can be installed and matched with the other module by interlocking the three heat exchange grooves 121 on the first heat exchange side 11 with the three heat exchange protrusions 111 of another module, so that the heat exchange module 10 can be accurately positioned relative to the other module. At this time, the heat exchange medium leaves the heat exchange module 10 through the medium outlet 132 and enters the other module, exchanging heat with the module, cooling or heating the other module in the process. After the heat exchange is completed, the heat exchange medium flows out from the module and returns to the heat exchange unit 2 through the medium inlet 131, completing a heat exchange cycle.

[0053] In other embodiments not shown in the figures, the first heat exchange side 11 has five heat exchange protrusions 111, and the second heat exchange side 12 has five heat exchange grooves 121. All heat exchange protrusions 111 are hemispherical, and the heat exchange grooves 121 are hemispherical, and the diameter of the heat exchange grooves 121 matches the diameter of the heat exchange protrusions 111. The five heat exchange grooves 121 on the second heat exchange side 12 of the heat exchange module 10 are interlocked with the five heat exchange protrusions 111 of another module, so that the heat exchange module 10 can be installed and matched with the other module, and the relative position of the heat exchange module 10 and the other module is accurate. At this time, the heat exchange medium leaves the heat exchange module 10 through the medium outlet 132 and enters the other module, exchanging heat with the module, cooling or refrigerating the other module in this process. After the heat exchange is completed, the heat exchange medium flows out from the module and returns to the heat exchange unit 2 through the medium inlet 131, completing a heat exchange cycle.

[0054] In the related art, heat exchange modules are often fixedly placed on the bottom surface of other modules or on top of other modules. However, this type of installation method is too rigid and highly customized. After the heat exchange module is installed, the installation position cannot be adjusted, resulting in cost waste. According to the heat exchange module 10 of the embodiment of the present application, by providing heat exchange protrusions 111 and heat exchange grooves 121 on the heat exchange housing 1 and fitting the heat exchange module 10 with the protrusions or grooves of adjacent modules, the heat exchange module 10 can cooperate with other modules, thereby achieving flexible placement of the heat exchange module 10, meeting more usage scenarios, facilitating large-scale production, and reducing costs.

[0055] For the convenience of description, the following will take refrigeration as an example to illustrate the structure of the heat exchange module 10, the battery pack 100 and the energy storage device.

[0056] In some embodiments, see Figure 1 、 Figure 4 、 Figure 5 As shown, the heat exchange connection surface 13 is provided with an air inlet 133 and an air outlet 134, both of which are in communication with the accommodating chamber 14. The provision of the air inlet 133 and the air outlet 134 ensures air circulation and flow within the heat exchange module 10, thereby adjusting the temperature and humidity within the heat exchange module 10. The air entering the accommodating chamber 14 through the air inlet 133 removes some of the heat from the heat exchange unit 2 as it flows through the heat exchange unit 2, thereby cooling the heat exchange medium within the heat exchange unit 2. Consequently, when the heat exchange medium flows out of the air outlet 134 and further into other modules, it can better cool and reduce the temperature of the other modules.

[0057] In some embodiments, the air inlets 133 are circular holes arranged in a matrix on the heat exchange connection surface 13 .

[0058] In some embodiments, the air inlet 133 is a rectangular grid structure formed on the heat exchange connection surface 13 .

[0059] In some embodiments, the air inlet 133 is a rectangular strip structure formed on the heat exchange connection surface 13 .

[0060] In some embodiments, the air outlets 134 are circular holes arranged in a matrix on the heat exchange connection surface 13 .

[0061] In some embodiments, the air outlet 134 is a rectangular grid structure formed on the heat exchange connection surface 13 .

[0062] In some embodiments, the air outlet 134 is a rectangular strip structure formed on the heat exchange connection surface 13 .

[0063] It is understandable that the description of the shapes of the air inlet 133 and the air outlet 134 in the above embodiments is just a few examples, rather than a limitation to the air inlet 133 and the air outlet 134. Any structure that allows air circulation can be determined as the air inlet 133 or the air outlet 134 according to the situation.

[0064] In some embodiments, see Figure 1-Figure 7 As shown, the heat exchange connection surface 13 includes a third heat exchange side surface 135, a fourth heat exchange side surface 136, a fifth heat exchange side surface 137, and a sixth heat exchange side surface 138. The third heat exchange side surface 135 and the fourth heat exchange side surface 136 are disposed opposite each other, while the fifth heat exchange side surface 137 and the sixth heat exchange side surface 138 are disposed opposite each other. The air inlet 133 is disposed on the third heat exchange side surface 135, and the air outlet 134 is disposed on at least one of the fourth heat exchange side surface 136, the fifth heat exchange side surface 137, and the sixth heat exchange side surface 138. By arranging the air inlet 133 and the air outlet 134 on different sides, the gas discharged from the heat exchange module 10 through the air outlet 134 is prevented from reentering the heat exchange module 10 through the air inlet 133. This prevents the gas in the heat exchange module 10 from circulating with the outside world, thereby reducing the temperature and humidity regulation effect within the heat exchange module 10. At the same time, the heat exchange connection surface 13 is a non-matching surface, and an air inlet 133 and an air outlet 134 are opened on the non-matching surface to ensure that the air inlet and outlet of the heat exchange module 10 are large, avoiding affecting the air volume when the air inlet 133 or the air outlet 134 is set on the matching surface.

[0065] In some embodiments, the air inlet 133 is disposed on the third heat exchange side 135, and the air outlet 134 is disposed on the fourth heat exchange side 136. This allows the cold air to flow through the accommodating chamber 14 over a longer path, allowing the cold air to flow through the heat exchange unit 2 for a longer period of time. This allows the cold air to fully contact the heat exchange unit 2, effectively removing heat from the heat exchange medium and enabling the heat exchange medium to cool other modules more effectively.

[0066] In some embodiments, the air inlet 133 is disposed on the third heat exchange side 135 , and the air outlet 134 is disposed on the fifth heat exchange side 137 .

[0067] In some embodiments, the air inlet 133 is disposed on the third heat exchange side 135 , and the air outlet 134 is disposed on the sixth heat exchange side 138 .

[0068] In some embodiments, the air inlet 133 is arranged on the third heat exchange side 135, and the air outlet 134 is arranged on two of the fourth heat exchange side 136, the fifth heat exchange side 137 and the sixth heat exchange side 138, thereby accelerating the air outlet.

[0069] In some embodiments, the air inlet 133 is provided on the third heat exchange side 135 , and an air outlet 134 is provided on each of the fourth heat exchange side 136 , the fifth heat exchange side 137 and the sixth heat exchange side 138 , thereby accelerating the air outlet.

[0070] In some embodiments, see Figure 1-Figure 3 As shown, the first heat exchange side surface 11 and the second heat exchange side surface 12 are arranged in parallel. This ensures that the heat exchange module 10 maintains overall stability when cooperating with other modules, and other modules can be more flexibly engaged with the heat exchange protrusions 111 and heat exchange grooves 121 on the heat exchange housing 1, while facilitating large-scale production of the heat exchange module 10.

[0071] In some embodiments, see Figure 1-Figure 3 As shown, in a direction perpendicular to the first heat exchange side 11 and the second heat exchange side 12, the positions of the heat exchange protrusions 111 and the heat exchange grooves 121 correspond one-to-one. In other words, in the same heat exchange module 10, the heat exchange protrusions 111 and the heat exchange grooves 121 are the same in number and are distributed in the same positions on the first heat exchange side 11 and the second heat exchange side 12. This ensures that the heat exchange module 10 can be alternately matched with another module, that is, the first heat exchange side 11 can be matched with another module, and the second heat exchange side 12 can also be matched with this module. This improves the flexibility of the heat exchange module 10 during installation and also facilitates the large-scale production of the heat exchange module 10.

[0072] In some embodiments, see Figure 1 、 Figure 8 、 Figure 9 、 Figure 15-17As shown, there is at least one heat exchange unit 2, each connected to its own corresponding medium inlet 131 and medium outlet 132. In other words, the number of heat exchange units 2 can be selected based on the heat exchange efficiency required by other modules. Each heat exchange unit 2 receives heat exchange medium from a separate medium inlet 131 and delivers it to its corresponding medium outlet 132. This facilitates flexible placement of the heat exchange module 10 and allows the heat exchange module 10 to regulate the temperature of other modules through the flow of heat exchange medium.

[0073] For example, if Figure 17 As shown, the heat exchange module 10 can be used to cool the battery module 20. There are multiple battery modules 20, and the multiple battery modules 20 are arranged in a row. The heat exchange module 10 is placed between two of the battery modules 20. The number of heat exchange units 2 can be two, one of which can cool the battery module 20 on one side of the heat exchange module 10, and the other heat exchange unit 2 can cool the battery module 20 on the other side of the heat exchange module 10. This helps to shorten the length of the pipeline between the battery module 20 and the medium inlet 131 and the medium outlet 132, shorten the flow path of the heat exchange medium, better reduce the loss of the heat exchange medium temperature, reduce the temperature difference, and improve the temperature uniformity, thereby ensuring the service life of the system and enabling the system to operate stably for a long time.

[0074] In some embodiments, as Figure 8 As shown, the heat exchange module 10 has a heat exchange unit 2 , and the heat exchange unit 2 is connected to a medium inlet 131 and a medium outlet 132 .

[0075] In some embodiments, the heat exchange module 10 has two heat exchange units 2 , two medium inlets 131 and two medium outlets 132 , one heat exchange unit 2 connects one medium inlet 131 and one medium outlet 132 , and the other heat exchange unit 2 connects another medium inlet 131 and another medium outlet 132 .

[0076] It is understandable that the number of heat exchange units 2 can be three, four or more, and the number of corresponding medium inlets 131 and medium outlets 132 can be three, four or more, such as Figure 9 As shown, there can also be three heat exchange units 2. They are not listed one by one here.

[0077] In some embodiments, see Figure 1 、 Figure 4 、 Figure 15-17 As shown, the medium inlet 131 and the medium outlet 132 are located on the same side. Thus, it is convenient to connect the pipelines from the same side, which improves the convenience of operation.

[0078] In some embodiments, the medium inlet 131 and the medium outlet 132 are adapted to be disposed on the same side as the air inlet 133 or the air outlet 134. Thus, when wind passes through the air inlet 133 or the air outlet 134, the medium at the medium inlet 131 and the medium outlet 132 can be cooled.

[0079] Optionally, the medium inlet 131 and the medium outlet 132 are adapted to be arranged on the same side as the air inlet 133, see Figure 1 、 Figure 4 、 Figure 5 As shown, the medium inlet 131, the medium outlet 132 and the air inlet 133 are all arranged on the third heat exchange side 135. Therefore, when the wind passes through the air inlet 133, the medium at the medium inlet 131 and the medium outlet 132 can be cooled.

[0080] Alternatively, the medium inlet 131 and the medium outlet 132 are adapted to be arranged on the same side as the air outlet 134 , so that when wind passes through the air outlet 134 , the medium at the medium inlet 131 and the medium outlet 132 can be cooled.

[0081] See Figure 1 、 Figures 10-17 As shown, a battery pack 100 according to another embodiment of the present application includes at least one battery module 20 and at least one heat exchange module 10 according to the above embodiment.

[0082] The battery module 20 includes a battery shell 3, and a battery cell 4 is arranged inside the battery shell 3. The battery shell 3 includes a first battery side 31 and a second battery side 32. The first battery side 31 and the second battery side 32 are arranged opposite to each other. One of the first battery side 31 and the second battery side 32 has a battery protrusion 311, and the other has a battery groove 321. The heat exchange protrusion 111 matches the shape of the battery groove 321, and the heat exchange groove 121 matches the shape of the battery protrusion 311.

[0083] In some embodiments, the heat exchange housing 1 and the adjacent battery housing 3 are engaged with each other through the heat exchange protrusion 111 and the battery groove 321 .

[0084] Or in some other embodiments, the heat exchange housing 1 and the adjacent battery housing 3 are engaged with each other through the heat exchange groove 121 and the battery protrusion 311 .

[0085] In some embodiments, a battery module 20 has four battery protrusions 311 on the first battery side 31 and four battery recesses 321 on the second battery side 32. A heat exchange module 10 has four battery protrusions 311 on the first heat exchange side 11 and four battery recesses 321 on the second heat exchange side 12. The battery protrusions 311, battery recesses 321, heat exchange protrusions 111, and heat exchange recesses 121 are all truncated cone-shaped and have matching dimensions. The battery protrusions 311 on the first battery side 31 engage with the heat exchange recesses 121 on the second heat exchange side 12, securing the battery module 20 to the heat exchange module 10.

[0086] In some embodiments, a battery module 20 has three battery protrusions 311 on the first battery side 31 and three battery recesses 321 on the second battery side 32. A heat exchange module 10 has three battery protrusions 311 on the first heat exchange side 11 and three battery recesses 321 on the second heat exchange side 12. The battery protrusions 311, battery recesses 321, heat exchange protrusions 111, and heat exchange recesses 121 are all cube-shaped with matching side lengths. The battery recesses 321 on the second battery side 32 engage with the heat exchange protrusions 111 on the first heat exchange side 11, securing the battery module 20 to the heat exchange module 10.

[0087] In some embodiments, a battery module 20 has five battery recesses 321 on the first battery side 31 and five battery protrusions 311 on the second battery side 32. A heat exchange module 10 has five battery recesses 321 on the first heat exchange side 11 and five battery protrusions 311 on the second heat exchange side 12. The battery protrusions 311, battery recesses 321, heat exchange protrusions 111, and heat exchange recesses 121 are all hemispherical in shape, with matching hemisphere diameters. The battery recesses 321 on the first battery side 31 mate with the heat exchange protrusions 111 on the second heat exchange side 12, securing the battery module 20 to the heat exchange module 10.

[0088] It is understood that the number of battery protrusions 311 and battery recesses 321 in a battery module 20 is M, and the number of heat exchange protrusions 111 and heat exchange recesses 121 in a heat exchange module 10 is also M, where M is a positive integer, for example, M can be 1, 2, 3, etc. The shapes of the battery protrusions 311, battery recesses 321, heat exchange protrusions 111, and heat exchange recesses 121 can be any mutually interlocking shapes, for example, they can be cylindrical, conical, truncated cone, hemispherical, polygonal, curved, or a combination of straight lines and curves.

[0089] In some embodiments, the battery pack 100 has one battery module 20 .

[0090] In some embodiments, the battery pack 100 has a plurality of battery modules 20 .

[0091] In some embodiments, the battery pack 100 has a heat exchange module 10 .

[0092] In some embodiments, the battery pack 100 has multiple heat exchange modules 10 .

[0093] It is understandable that the battery pack 100 may include two, three, or more battery modules 20, and the heat exchange modules 10 may include two, three, or more heat exchange modules 10. Furthermore, there is no absolute relationship between the number of heat exchange modules 10 and the number of battery modules 20. The number of battery modules 20 and heat exchange modules 10 can be selected based on actual conditions. A detailed list is omitted here.

[0094] In the related art, the battery modules are placed in the cabinet, and some heat exchange modules are suspended on the inside or outside of the door of the cabinet, occupying the internal or external space of the cabinet, which invisibly increases the volume of the cabinet and causes waste of space and floor space. According to the battery pack 100 of the embodiment of the present application, the heat exchange shell 1 and the adjacent battery shell 3 are connected by the battery protrusion 311 and the heat exchange groove 121, or the battery groove 321 and the heat exchange protrusion 111, so as to realize the diversified matching installation of several heat exchange modules 10 and several battery modules 20. Any two modules can be stacked up and down through the grooves and protrusions, making stacking more convenient, improving the flexible placement of the modules inside the battery pack 100, meeting more usage scenarios, facilitating large-scale production, and reducing costs. At the same time, the flexible placement of the modules inside the battery pack 100 saves a lot of space, increases the product density of the battery pack 100, avoids waste of space and floor space, and improves competitiveness.

[0095] In some embodiments, see Figure 10 、 Figure 15 The heat exchange housing 1 is a rectangular parallelepiped, and the battery housing 3 is a rectangular parallelepiped. The heat exchange housing 1 and the adjacent battery housing 3 have at least one of the same length, width, or height. Therefore, by configuring the heat exchange module 10 and the battery module 20 as modules with similar shapes, the heat exchange housing 1 and the adjacent battery housing 3 can be stacked vertically or arranged in an orderly manner front to back and left to right. This improves the stability of the installed housings, enables flexible placement of the modules, saves a lot of space, increases the product density of the battery pack 100, and enhances its competitiveness.

[0096] It should be noted that the heat exchange housing 1 may also be a cube, and the battery housing 3 may also be a cube.

[0097] In some embodiments, the heat exchange housing 1 is equal to one of the length, width or height of the adjacent battery housing 3, and the other two are not equal. For example, the length of the heat exchange housing 1 is equal to the length of the adjacent battery housing 3, and the width and height are not equal; or, the width of the heat exchange housing 1 is equal to the width of the adjacent battery housing 3, and the length and height are not equal; or, the height of the heat exchange housing 1 is equal to the height of the adjacent battery housing 3, and the length and width are not equal.

[0098] In some embodiments, two of the length, width or height of the heat exchange housing 1 and the adjacent battery housing 3 are equal, and the other is not equal. For example, the length and width of the heat exchange housing 1 and the adjacent battery housing 3 are equal, but the height is not equal; or, the width and height of the heat exchange housing 1 and the adjacent battery housing 3 are equal, but the length is not equal; or, the length and height of the heat exchange housing 1 and the adjacent battery housing 3 are equal, but the width is not equal.

[0099] In some embodiments, the heat exchange housing 1 and the adjacent battery housing 3 are equal in length, width, and height.

[0100] In some embodiments, see Figure 1 、 Figures 10-17 The battery housing 3 also includes a battery connection surface 33, which connects the first battery side surface 31 and the second battery side surface 32. A battery inlet 331 and a battery outlet 332 are provided on the battery connection surface 33. The battery inlet 331 and the medium outlet 132 are connected via a first pipe 51, and the battery outlet 332 and the medium inlet 131 are connected via a second pipe 52. Thus, the battery inlet 331 and the battery outlet 332 are provided and connect the battery module 20 and the heat exchange module 10 via pipes. The heat exchange module 10 outputs heat exchange medium from the medium outlet 132, which then reaches the battery inlet 331 through the second pipe 52 and enters the battery module 20. The heat exchange medium is then output through the battery outlet 332 of the battery module 20 and then reaches the medium inlet 131 through the first pipe 51 and enters the heat exchange unit 2, completing a closed loop. The heat exchange medium circulates between the heat exchange module 10 and the battery module 20, and the heat exchange module 10 can cool the battery module 20 through the circulation of the heat exchange medium.

[0101] In some embodiments, see Figure 1 、 Figures 10-17 There are multiple battery modules 20, and two adjacent battery modules 20 are engaged with each other through the battery protrusion 311 and the battery groove 321. The heat exchange module 10 is arranged at the same end of the multiple battery modules 20, or the heat exchange module 10 is arranged between two adjacent battery modules 20.

[0102] In some embodiments, as Figure 15As shown, the battery pack 100 has multiple battery modules 20 and a heat exchange module 10. The multiple battery modules 20 are installed in a vertical arrangement by engaging the battery protrusions 311 and the battery grooves 321. The heat exchange module 10 is installed on the top of all the battery modules 20.

[0103] In some embodiments, as Figure 16 As shown, the battery pack 100 has multiple battery modules 20 and a heat exchange module 10. The multiple battery modules 20 are installed in a vertical arrangement by engaging the battery protrusions 311 and the battery grooves 321. The heat exchange module 10 is installed at the bottom of all the battery modules 20.

[0104] In some embodiments, the battery pack 100 has multiple battery modules 20 and a heat exchange module 10, and the heat exchange module 10 is installed between two of the battery modules 20. Some battery modules 20 are located below the heat exchange module 10, and other battery modules 20 are located above the heat exchange module 10. Two adjacent battery modules 20 are installed in a vertical arrangement by interlocking the battery protrusion 311 and the battery groove 321. For example, in one example, Figure 17 As shown, from bottom to top, there is a battery module 20, a heat exchange module 10, and two battery modules 20. The first medium inlet 131a of the heat exchange module 10 is connected to the battery outlet 332 of the battery module 20 above it via a first first pipe 51a, and the first medium outlet 132a of the heat exchange module 10 is connected to the battery inlet 331 of the battery module 20 above it via a first second pipe 52a. The second medium inlet 131b of the heat exchange module 10 is connected to the battery outlet 332 of the battery module 20 below it via a second first pipe 51b, and the second medium outlet 132b of the heat exchange module 10 is connected to the battery inlet 331 of the battery module 20 above it via a second second pipe 52b. As a result, the first pipe 51 is divided into two sections, and the second pipe 52 is also divided into two sections. Each section is shorter, shortening the flow path of the heat exchange medium, reducing temperature loss of the heat exchange medium, and achieving better temperature uniformity, ensuring long-term stable operation of the system.

[0105] In some embodiments, the battery pack 100 has multiple battery modules 20 and multiple heat exchange modules 10, for example, eight battery modules 20 and two heat exchange modules 10. Two adjacent battery modules 20 are installed in a vertical arrangement by the interlocking battery protrusion 311 and the battery groove 321. One heat exchange module 10 is installed between two adjacent battery modules 20, and another heat exchange module 10 is installed at the bottom of all battery modules 20. From low to high, there is one heat exchange module 10, four battery modules 20, one heat exchange module 10, and four battery modules 20.

[0106] It is understood that there may be two, three, or more battery modules 20. There may be one, two, three, or more heat exchange modules 10. The multiple battery modules 20 may be arranged vertically, stacked up and down, or arranged horizontally, front to back, left to right, in an orderly manner. When there are multiple heat exchange modules 10, any heat exchange module 10 may be located at the same end of the multiple battery modules 20 or between two adjacent battery modules 20.

[0107] An energy storage device according to another embodiment of the present application includes the battery pack 100 of the above embodiment.

[0108] According to the energy storage device of the embodiment of the present application, the heat exchange shell 1 of the battery pack 100 and the adjacent battery shell 3 are engaged with each other through the battery protrusion 311 and the heat exchange groove 121, or the battery groove 321 and the heat exchange protrusion 111, thereby realizing diversified coordinated installation of multiple heat exchange modules 10 and multiple battery modules 20, improving the flexible placement of the battery pack 100, meeting more usage scenarios, facilitating large-scale production, and reducing costs.

[0109] In the description of this application, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "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.

[0110] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0111] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" 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 expressions 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.

[0112] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A heat exchange module (10), characterized in that: include: A heat exchange shell (1), wherein the interior of the heat exchange shell (1) has a accommodating cavity (14), the heat exchange shell (1) comprises a first heat exchange side surface (11), a second heat exchange side surface (12) and a heat exchange connecting surface (13), the heat exchange connecting surface (13) connecting the first heat exchange side surface (11) and the second heat exchange side surface (12), one of the first heat exchange side surface (11) and the second heat exchange side surface (12) having a heat exchange protrusion (111), and the other having a heat exchange groove (121), the heat exchange protrusion (111) and the heat exchange groove (121) matching in shape, the heat exchange protrusion (111) being used to be fitted with a groove of another module, and the heat exchange groove (121) being used to be fitted with a protrusion of yet another module; a heat exchange unit (2), the heat exchange unit (2) being arranged in the accommodating cavity (14); Wherein, a medium inlet (131) and a medium outlet (132) are provided on the heat exchange connection surface (13), and both the medium inlet (131) and the medium outlet (132) are connected to the heat exchange unit (2).

2. The heat exchange module (10) according to claim 1, characterized in that An air inlet (133) and an air outlet (134) are provided on the heat exchange connection surface (13), and both the air inlet (133) and the air outlet (134) are in communication with the accommodating cavity (14).

3. The heat exchange module (10) according to claim 2, characterized in that: The heat exchange connection surface (13) includes a third heat exchange side surface (135), a fourth heat exchange side surface (136), a fifth heat exchange side surface (137) and a sixth heat exchange side surface (138); the third heat exchange side surface (135) and the fourth heat exchange side surface (136) are arranged relative to each other, the fifth heat exchange side surface (137) and the sixth heat exchange side surface (138) are arranged relative to each other, the air inlet (133) is arranged on the third heat exchange side surface (135), and the air outlet (134) is arranged on at least one of the fourth heat exchange side surface (136), the fifth heat exchange side surface (137) and the sixth heat exchange side surface (138).

4. The heat exchange module (10) according to claim 1, characterized in that The first heat exchange side surface (11) and the second heat exchange side surface (12) are arranged in parallel.

5. The heat exchange module (10) according to claim 4, characterized in that: In a direction perpendicular to the first heat exchange side surface (11) and the second heat exchange side surface (12), the positions of the heat exchange protrusions (111) and the heat exchange grooves (121) correspond one to one.

6. The heat exchange module (10) according to claim 1, characterized in that There is at least one heat exchange unit (2), and each heat exchange unit (2) is connected to the corresponding medium inlet (131) and the medium outlet (132).

7. The heat exchange module (10) according to claim 3, characterized in that The medium inlet (131) and the medium outlet (132) are located on the same side.

8. The heat exchange module (10) according to claim 7, characterized in that The medium inlet (131) and the medium outlet (132) are suitable for being arranged on the same side as the air inlet (133) or the air outlet (134).

9. A battery pack (100), characterized in that: include: At least one heat exchange module (10) according to any one of claims 1 to 8; At least one battery module (20), the battery module (20) comprising a battery housing (3), a battery cell (4) being arranged inside the battery housing (3), the battery housing (3) comprising a first battery side surface (31) and a second battery side surface (32), the first battery side surface (31) and the second battery side surface (32) being arranged opposite to each other, one of the first battery side surface (31) and the second battery side surface (32) having a battery protrusion (311), and the other having a battery groove (321), the heat exchange protrusion (111) matching the shape of the battery groove (321), and the heat exchange groove (121) matching the shape of the battery protrusion (311); The heat exchange housing (1) and the adjacent battery housing (3) are engaged through the heat exchange protrusion (111) and the battery groove (321) or through the heat exchange groove (121) and the battery protrusion (311).

10. The battery pack (100) according to claim 9, characterized in that: The heat exchange housing (1) is a rectangular parallelepiped, the battery housing (3) is a rectangular parallelepiped, and at least one of the length, width or height of the heat exchange housing (1) and the adjacent battery housing (3) is equal.

11. The battery pack (100) according to claim 9, characterized in that: The battery housing (3) further comprises a battery connection surface (33), the battery connection surface (33) connecting the first side surface (31) of the battery and the second side surface (32) of the battery; a battery inlet (331) and a battery outlet (332) are provided on the battery connection surface (33); the battery inlet (331) and the medium outlet (132) are communicated through a first pipe (51), and the battery outlet (332) and the medium inlet (131) are communicated through a second pipe (52).

12. The battery pack (100) according to claim 9, characterized in that: There are multiple battery modules (20), and two adjacent battery modules (20) are engaged with each other through the battery protrusion (311) and the battery groove (321); Wherein, the heat exchange module (10) is arranged at the same end of the plurality of battery modules (20); or, the heat exchange module (10) is arranged between two adjacent battery modules (20).

13. An energy storage device, characterized in that: A battery pack (100) comprising any one of claims 9 to 12.

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