Battery pack and electric equipment

Abstract

The invention provides a battery pack and electric equipment. The battery pack comprises a box body, a battery cell module and a heat transfer assembly, a containing cavity is formed in the box body, the battery cell module comprises a plurality of battery cells, the battery cells are all arranged in the containing cavity, the heat transfer assembly is connected with the battery cell module, the heat transfer assembly is used for exchanging heat with the battery cell module, and at least part of the heat transfer assembly is located outside the containing cavity. According to the battery pack, the volume of the box body can be reduced, and the weight of the box body is also reduced after the volume of the box body is reduced, so that the weight of the battery pack can be reduced, and the cost of the battery pack is reduced.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to battery packs and electrical equipment. Background Art

[0002] The battery pack mainly includes a box body, which contains battery cell modules, electrical components, and heat transfer components such as liquid cooling pipes.

[0003] In the related art, the battery pack has a large box body, which results in a large weight of the battery pack. Summary of the invention

[0004] The embodiments of the present application provide a battery pack and an electrical device, which can improve the technical problem that the battery pack is heavy due to the large volume of the box.

[0005] In a first aspect, an embodiment of the present application provides a battery pack, comprising:

[0006] A box body is formed with a receiving cavity;

[0007] A battery cell module, comprising a plurality of battery cells, wherein the plurality of battery cells are arranged in the accommodation cavity;

[0008] A heat transfer component is connected to the battery cell module, and is used for exchanging heat with the battery cell module. At least part of the heat transfer component is located outside the accommodating cavity.

[0009] In one embodiment, at least a portion of the heat transfer component is disposed on an outer wall surface of the box.

[0010] In one embodiment, the battery pack further includes an electrical component, which is connected to the battery cell module, and at least a portion of the electrical component is located outside the accommodating cavity.

[0011] In one embodiment, at least part of the electrical components are disposed on an outer wall surface of the box.

[0012] In one embodiment, the battery pack also includes a second cover plate, which is connected to the outer wall of the box body, and a second space is formed between the second cover plate and the outer wall of the box body, and at least part of the heat transfer component and / or at least part of the electrical component is located in the second space.

[0013] In one embodiment, the battery pack further includes a connection row, one end of which is located in the accommodating cavity and electrically connected to the battery cell module, and the other end of which extends outside the accommodating cavity and is connected to the electrical component.

[0014] In one embodiment, the box body is formed with a first connecting hole connected to the accommodating cavity, the first connecting hole is opposite to the output pole of the battery cell module, and the other end of the connecting row is passed through the first connecting hole to be located outside the accommodating cavity.

[0015] In one embodiment, the heat transfer component includes a liquid cooling pipe, which is connected to a cooling channel of the battery core module, and at least a portion of the liquid cooling pipe is located outside the accommodating cavity.

[0016] In one embodiment, the liquid cooling pipe is passed through the first connecting hole, and the liquid cooling pipe and the connecting row are spaced apart.

[0017] In one embodiment, the connection row includes a first connection block and a second connection block connected in sequence, the first connection block is inserted into the first connection hole and connects the second connection block and the battery module, and an installation space is formed between the second connection block and the outer wall surface of the box body;

[0018] The liquid cooling pipeline includes a first secondary pipeline and a second secondary pipeline connected in sequence, the first secondary pipeline is passed through the first connecting hole and connects the second secondary pipeline and the cooling channel of the battery module, and the second secondary pipeline is located in the installation space.

[0019] In one embodiment, the electrical component includes a high-voltage connector and a high-voltage plug-in connector, wherein the high-voltage connector is arranged on the outer wall of the box body, and the other end of the connecting row is electrically connected to the high-voltage connector, and the high-voltage plug-in connector is arranged on the outer wall of the box body, and the other end of the connecting row is electrically connected to the high-voltage connector through the high-voltage plug-in connector.

[0020] In one embodiment, the electrical component includes a BMS module, the BMS module is disposed on the outer wall surface of the box, and the battery cell module is electrically connected to the BMS module;

[0021] The box body is formed with a second connecting hole communicating with the accommodating cavity, and the electrical component includes a connecting harness, one end of the connecting harness is electrically connected to the battery cell module, and the other end of the connecting harness is passed through the second connecting hole and electrically connected to the BMS module, and at least part of the connecting harness is located outside the accommodating cavity.

[0022] In one embodiment, the electrical component comprises an MSD module, and the MSD module is arranged on the outer wall surface of the box; and / or,

[0023] The electrical component includes a PDU module, and the PDU module is arranged on the outer wall surface of the box.

[0024] In one embodiment, at least part of the electrical components and at least part of the heat transfer components are disposed on the same outer wall surface of the box, or at least part of the electrical components and at least part of the heat transfer components are disposed on different outer wall surfaces of the box, respectively.

[0025] In one embodiment, the box body includes a main body and a top cover, the top cover is connected to the main body, the top cover and the main body are arranged to form the accommodating cavity, and a sealing member is provided at the connection between the top cover and the main body.

[0026] In a second aspect, an embodiment of the present application provides an electrical device, comprising the battery pack described above.

[0027] Beneficial effects of the embodiments of the present application:

[0028] In the embodiment of the present application, the battery cell module is installed in the accommodating cavity of the box body, and at least part of the heat transfer component is arranged outside the accommodating cavity, so that at least part of the heat transfer component does not occupy the space of the accommodating cavity, which can reduce the size of the accommodating cavity and further reduce the volume of the box body. When the volume of the box body is reduced, the weight will also be reduced, which can reduce the weight of the battery pack and reduce the cost of the battery pack.

[0029] At the same time, the heat transfer component is arranged outside the accommodating cavity. When the heat transfer component of the battery pack needs to be inspected and replaced, there is no need to open the box, which facilitates the maintenance of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 is a schematic diagram of the structure of a battery pack provided in an embodiment of the present application;

[0032] Figure 2 It is one of the structural decomposition schematic diagrams of the battery pack provided in the embodiment of the present application;

[0033] Figure 3 The embodiments of this application provide Figure 2 A schematic diagram of the structure enlargement at the center A;

[0034] Figure 4 This is the second structural decomposition diagram of the battery pack provided in the embodiment of the present application;

[0035] Figure 5 is a side view of a battery pack provided by an embodiment of the present application;

[0036] Figure 6 is a schematic diagram of the structure of a battery cell module provided in an embodiment of the present application;

[0037] Figure 7 is a schematic diagram of the structure of a battery cell module provided in an embodiment of the present application;

[0038] Figure 8 is a side view of a battery cell module provided in an embodiment of the present application;

[0039] Fig. 9 is a schematic diagram of the structure of a battery pack provided in an embodiment of the present application;

[0040] Fig.10 is a cross-sectional view of a battery pack provided in an embodiment of the present application;

[0041] Fig.11 It is one of the structural schematic diagrams of the base plate provided in the embodiment of the present application;

[0042] Fig.12 This is the second structural schematic diagram of the base plate provided in the embodiment of the present application. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise stated, the directional words such as "upper" and "lower" used generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0044] Combine the following Figures 1 to 12 Describe the battery pack and electrical equipment of the present application.

[0045] According to the embodiment of the first aspect of the present application, Figure 1 , Figure 2 , Figure 3 and Figure 4 The battery pack includes a box body 4, a battery cell module 6 and a heat transfer component 9. The box body 4 forms a accommodating cavity 41. The battery cell module 6 includes a plurality of battery cells, and the plurality of battery cells are all arranged in the accommodating cavity 41. The heat transfer component 9 is connected to the battery cell module 6. The heat transfer component 9 is used for exchanging heat with the battery cell module 6, and at least part of the heat transfer component 9 is located outside the accommodating cavity 41.

[0046] According to the battery pack of the embodiment of the present application, the battery cell module 6 is installed in the accommodating cavity 41 of the box body 4, and at least part of the heat transfer component 9 is arranged outside the accommodating cavity 41, so that at least part of the heat transfer component 9 does not occupy the space of the accommodating cavity 41, which can reduce the size of the accommodating cavity 41, and further reduce the volume of the box body 4. After the volume of the box body 4 is reduced, the weight will also be reduced, and further reduce the weight of the battery pack, thereby reducing the cost of the battery pack.

[0047] At the same time, the heat transfer component 9 is arranged outside the accommodating cavity 41. When the heat transfer component 9 of the battery pack needs to be inspected and replaced, the box body 4 does not need to be opened, which facilitates the maintenance of the battery pack.

[0048] In some examples, the heat transfer component 9 is located outside the accommodating cavity 41, which may mean that the heat transfer component 9 is located on the outer wall of the box body 4, or that the heat transfer component 9 and the box body 4 are spaced apart.

[0049] In some embodiments, at least part of the heat transfer component 9 is disposed on the outer wall surface of the box body 4 .

[0050] It is understandable that at least part of the heat transfer component 9 is disposed on the outer wall of the box body 4, so that at least part of the heat transfer component 9 does not occupy the space of the accommodating cavity 41, and thus does not affect the volume of the box body 4, thereby reducing the volume of the box body 4. When the heat transfer component 9 needs to be repaired, the box body 4 does not need to be opened, thereby reducing the complexity of the battery pack repair.

[0051] In some examples, the heat transfer component 9 is disposed on the outer wall of the box body 4, which may mean that the heat transfer component 9 is connected to the outer wall of the box body 4, or that the heat transfer component 9 is connected to other structures and is located on the outer wall of the box body 4.

[0052] In some embodiments, Figure 2 and Figure 3 The battery pack also includes an electrical component 7, which is connected to the battery cell module 6, and at least part of the electrical component 7 is located outside the accommodating cavity 41.

[0053] It is understandable that by installing the battery cell module 6 in the accommodating cavity 41 of the box body 4 and arranging at least part of the electrical components 7 outside the accommodating cavity 41, at least part of the electrical components 7 will not occupy the space of the accommodating cavity 41, which can reduce the size of the accommodating cavity 41 and further reduce the volume of the box body 4. When the volume of the box body 4 is reduced, the weight will also be reduced, which can reduce the weight of the battery pack and reduce the cost of the battery pack.

[0054] At the same time, the electrical component 7 is arranged outside the accommodating cavity 41. When the electrical component 7 of the battery pack needs to be inspected and replaced, the box body 4 does not need to be opened, which facilitates the maintenance of the battery pack.

[0055] In some examples, the electrical component 7 is located outside the accommodating cavity 41 , which may mean that the electrical component 7 is located on the outer wall surface of the box body 4 , or that the electrical component 7 and the box body 4 are spaced apart.

[0056] In some embodiments, at least part of the electrical components 7 are disposed on the outer wall of the box 4 .

[0057] It is understandable that at least part of the electrical components 7 are arranged on the outer wall surface of the box body 4, so that at least part of the electrical components 7 will not occupy the space of the accommodating cavity 41, and will not affect the volume of the box body 4, thereby reducing the volume of the box body 4. When the electrical components 7 need to be repaired, the box body 4 does not need to be opened, which reduces the complexity of the battery pack repair.

[0058] In some examples, the electrical component 7 is disposed on the outer wall of the box body 4 , which may mean that the electrical component 7 is connected to the outer wall of the box body 4 , or that the electrical component 7 is connected to other structures and is located on the outer wall of the box body 4 .

[0059] In some embodiments, Figure 2 and Figure 3 The battery pack also includes a first cover plate 8, which is connected to the outer wall of the box body 4. A first space 81 is formed between the first cover plate 8 and the outer wall of the box body 4, and at least part of the electrical components 7 are located in the first space 81.

[0060] It can be understood that, through the cooperation between the first cover plate 8 and the outer wall surface of the box body 4 , the first cover plate 8 can cover at least part of the electrical components 7 therein, so as to protect at least part of the electrical components 7 .

[0061] In some examples, the electrical component 7 located outside the accommodating cavity 41 may be entirely located in the first space 81 or may be partially located in the first space 81 .

[0062] In some examples, the first cover plate 8 is sealed to the outer wall surface of the box body 4 to reduce the influence of the external environment on the components in the first space 81 .

[0063] In some examples, the first cover plate 8 is detachably connected to the outer wall of the box body 4 to facilitate inspection and replacement of components in the first space 81 .

[0064] In some embodiments, Figure 2 and Figure 3 The battery pack also includes a connection row 71, one end of which is located in the accommodating cavity 41 and electrically connected to the battery cell module 6, and the other end of the connection row 71 extends outside the accommodating cavity 41 and is connected to the electrical component 7.

[0065] It is understandable that one end of the connection bar 71 extends into the accommodating cavity 41 and is electrically connected to the battery module 6, and the other end of the connection bar 71 is located outside the accommodating cavity 41, so that the connection bar 71 can electrically connect the battery module and the electrical component 7 together, and the electrical component 7 can be arranged outside the accommodating cavity 41. At the same time, it is ensured that at least the other end of the connection bar 71 does not occupy the space of the accommodating cavity 41, which is conducive to reducing the volume of the box body 4. And when the connection bar 71 needs to be repaired, it is not necessary to open the box body 4, which reduces the complexity of the battery pack repair.

[0066] In some examples, the other end of the connection bar 71 is electrically connected to, for example, an MSD module 73 or a high voltage connector 72 .

[0067] In some examples, the connection bar 71 includes a plurality of copper bars, and the number of the copper bars can be adaptively adjusted according to the number of the battery cell modules 6 .

[0068] In some embodiments, Figure 2 and Figure 3 The box body 4 is formed with a first connection hole 44 communicating with the accommodating cavity 41 . The first connection hole 44 is opposite to the output pole of the battery module 6 . The other end of the connection row 71 is passed through the first connection hole 44 to be located outside the accommodating cavity 41 .

[0069] It can be understood that by forming a first connecting hole 44 in the box body 4, the connecting row 71 can be connected to the battery cell module 6 and the components outside the accommodating cavity 41 through the first connecting hole 44, so that at least the other end of the connecting row 71 can be located outside the accommodating cavity 41, which is beneficial to reducing the volume of the box body 4.

[0070] It can be understood that the first connecting hole 44 and the output pole of the battery module 6 are arranged relative to each other, so that after one end of the connecting row 71 is connected to the battery module 6, the other end of the connecting row 71 can directly pass through the first connecting hole 44 to pass through the accommodating cavity 41, which is convenient for the setting of the connecting row 71.

[0071] In some embodiments, Figure 2 and Figure 3 The electrical component 7 includes a high-voltage connector 72 , which is disposed on the outer wall of the box body 4 , and the other end of the connection row 71 is electrically connected to the high-voltage connector 72 .

[0072] It is understandable that the high-voltage connector 72 and the other end of the connection row 71 are both arranged on the outer wall surface of the box body 4, thereby facilitating the connection between the other end of the connection row 71 and the high-voltage connector 72, so that the high-voltage connector 72 can be electrically connected to the battery cell module 6 through the connection row 71. At the same time, the high-voltage connector 72 is arranged on the outer wall surface of the box body 4, that is, the high-voltage connector 72 is located outside the accommodating cavity 41, and the high-voltage connector 72 will not affect the volume of the box body 4, which is conducive to the miniaturization of the volume of the box body 4. And the high-voltage connector 72 is arranged on the outer wall surface of the box body 4, when the high-voltage connector 72 needs to be repaired or replaced, it is not necessary to open the box body 4, which reduces the complexity of the maintenance of the battery pack.

[0073] In some embodiments, the electrical component 7 includes a high-voltage connector, which is disposed on the outer wall of the box 4 , and the other end of the connection row 71 is electrically connected to the high-voltage connector 72 through the high-voltage connector.

[0074] It can be understood that the high voltage connector 72 and the connection row 71 are connected by the high voltage connector, which improves the convenience of connection and disconnection between the high voltage connector 72 and the connection row 71.

[0075] The high-voltage connector, the other end of the connection row 71 and the high-voltage connector 72 are all located on the outer wall of the box body 4 , so that the high-voltage connector can be easily connected to the other end of the connection row 71 .

[0076] The high-voltage connector is located outside the accommodating cavity 41 , that is, the high-voltage connector is located outside the accommodating cavity 41 . The high-voltage connector will not affect the volume of the box body 4 , which is conducive to miniaturization of the volume of the box body 4 .

[0077] The high-voltage connector is arranged on the outer wall of the box body 4. When the high-voltage connector needs to be repaired or replaced, the box body 4 does not need to be opened, which reduces the complexity of the maintenance of the battery pack.

[0078] In some embodiments, Figure 2 and Figure 3 The electrical component 7 includes an MSD module 73 , and the MSD module 73 is arranged on the outer wall surface of the box body 4 .

[0079] It is understandable that the MSD module 73 is arranged on the outer wall of the box body 4, that is, the MSD module 73 is located outside the accommodating cavity 41, and the MSD module 73 does not occupy the space of the accommodating cavity 41, which is conducive to the miniaturization of the box body 4. Moreover, the MSD module 73 is arranged outside the box body 4, when the MSD module 73 needs to be repaired or replaced, the box body 4 does not need to be opened, which reduces the complexity of the maintenance of the battery pack.

[0080] In some examples, the other end of the connection bar 71 is electrically connected to the MSD module 73 , so that the MSD module 73 is connected between two battery cell modules of the battery cell module 6 .

[0081] In some embodiments, Figure 1 and Figure 5 The electrical component 7 includes a PDU module 74 , and the PDU module 74 is arranged on the outer wall surface of the box body 4 .

[0082] It is understandable that the PDU module 74 is arranged on the outer wall of the box body 4, that is, the PDU module 74 is located outside the accommodating cavity 41, and the PDU module 74 does not occupy the space of the accommodating cavity 41, which is conducive to the miniaturization of the box body 4. Moreover, the PDU module 74 is arranged outside the box body 4, and when the PDU module 74 needs to be repaired or replaced, the box body 4 does not need to be opened, which reduces the complexity of the maintenance of the battery pack.

[0083] In some embodiments, Figure 5 The electrical component 7 includes a BMS module 75 , which is disposed on the outer wall of the box body 4 , and the battery cell module 6 is electrically connected to the BMS module 75 .

[0084] It is understandable that the BMS module 75 is disposed on the outer wall of the box 4, that is, the BMS module 75 is located outside the accommodating cavity 41, and the BMS module 75 does not occupy the space of the accommodating cavity 41, which is conducive to the miniaturization of the box 4. Moreover, the BMS module 75 is disposed outside the box 4, and when the BMS module 75 needs to be repaired or replaced, the box 4 does not need to be opened, which reduces the complexity of the maintenance of the battery pack.

[0085] In some embodiments, Figure 5 The box body 4 is formed with a second connecting hole 45 communicating with the accommodating cavity 41, and the electrical component 7 includes a connecting harness, one end of the connecting harness is electrically connected to the battery cell module 6, and the other end of the connecting harness is passed through the second connecting hole 45 and electrically connected to the BMS module 75, and at least part of the connecting harness is located outside the accommodating cavity 41.

[0086] It can be understood that by forming the second connection hole 45 in the box body 4 , it is convenient for the connection harness to connect the battery cell module 6 and the BMS module 75 through the second connection hole 45 .

[0087] The other end of the connecting harness and the BMS module 75 are both located on the outer wall of the box 4, which facilitates the connection between the other end of the connecting harness and the BMS module 75, so that the BMS module 75 can be connected to the battery cell module 6 through the connecting harness.

[0088] At least part of the connecting harness is located outside the accommodating cavity 41 , and at least part of the connecting harness will not affect the volume of the box body 4 , which is conducive to miniaturization of the volume of the box body 4 .

[0089] At least part of the connecting harness is located outside the accommodating cavity 41. When the connecting harness needs to be repaired or replaced, the box body 4 does not need to be opened, thereby reducing the complexity of repairing the battery pack.

[0090] In some embodiments, at least part of the electrical components 7 and at least the heat transfer components 9 are disposed on the same outer wall surface of the box body 4 .

[0091] It can be understood that arranging at least part of the electrical components 7 and at least part of the heat transfer components 9 at the same position can make the battery pack more compact.

[0092] In some embodiments, at least part of the electrical components 7 and at least part of the heat transfer components 9 are respectively arranged on different outer wall surfaces of the box body 4.

[0093] It can be understood that arranging at least part of the electrical components 7 and at least part of the heat transfer components 9 on different sides of the box body 4 respectively improves the structural uniformity of the battery pack.

[0094] Exemplarily, at least part of the electrical components 7 and at least part of the heat transfer components 9 are respectively located on two oppositely disposed side walls of the box body 4, thereby improving the structural uniformity of the battery pack.

[0095] Exemplarily, the battery cell module 6 includes a battery cell module, which includes a plurality of battery cells arranged in sequence. Along the arrangement direction of the battery cells of the battery cell module, the heat transfer component 9 and part of the electrical components 7 are located on both sides of the box body 4, and another part of the electrical components 7 and the heat transfer component 9 are located on the same side of the box body 4, so that the electrical components 7 and the heat transfer components 9 can be directly connected to the battery cell module, thereby improving the connection convenience between the electrical components 7 and the battery cell module, and improving the connection convenience between the heat transfer component 9 and the battery cell module.

[0096] In some embodiments, Figure 2 and Figure 3 The battery pack also includes a second cover plate 10, which is connected to the outer wall of the box body 4. A second space 101 is formed between the second cover plate 10 and the outer wall of the box body 4. At least part of the heat transfer component 9 and / or at least part of the electrical component 7 are located in the second space 101.

[0097] It can be understood that, through the cooperation between the second cover plate 10 and the outer wall of the box body 4, the second cover plate 10 can cover at least part of the heat transfer component 9 and / or at least part of the electrical component 7 to achieve protection of at least part of the heat transfer component 9 and / or at least part of the electrical component 7.

[0098] In some examples, the heat transfer component 9 and / or the electrical component 7 located outside the accommodating cavity 41 may be completely located in the second space 101 or may be partially located in the second space 101 .

[0099] In some examples, the second cover plate 10 is sealed to the outer wall surface of the box body 4 to reduce the influence of the external environment on the components in the second space 101 .

[0100] In some examples, the second cover plate 10 is detachably connected to the outer wall of the box body 4 to facilitate inspection and replacement of components in the first space 81 .

[0101] In some embodiments, Figure 2 and Figure 3 The heat transfer component 9 includes a liquid cooling pipe 91 , which is connected to the cooling channel of the battery core module 6 , and at least part of the liquid cooling pipe 91 is located outside the accommodating cavity 41 .

[0102] It can be understood that the liquid cooling pipe 91 can transmit the liquid cooling medium to the cooling channel of the battery cell module 6 to achieve cooling of the battery cell module 6.

[0103] At least part of the liquid cooling pipe 91 is arranged outside the accommodating cavity 41 , so that at least part of the liquid cooling pipe 91 does not occupy the space of the accommodating cavity 41 , which is conducive to the miniaturization of the structure of the box body 4 .

[0104] At least part of the liquid cooling pipe 91 is arranged on the outer wall surface of the box body 4. When the liquid cooling pipe 91 needs to be inspected or replaced, the box body 4 does not need to be opened, which reduces the complexity of the maintenance of the battery pack.

[0105] It should be noted that this embodiment is only an example of the heat transfer component 9, and the heat transfer component 9 can also be a heat conductive sheet or any other suitable structure, which is not particularly limited here.

[0106] In some examples, the box body 4 is formed with a third connecting hole connected to the accommodating cavity 41 , one end of the liquid cooling pipe 91 is connected to the battery cell module 6 , and the other end of the liquid cooling pipe 91 is passed through the third connecting hole to be located outside the accommodating cavity 41 .

[0107] It is understandable that, by forming the third connecting hole in the housing 4 , the liquid cooling pipe 91 can be passed through the third connecting hole to communicate with the refrigeration channel, thereby facilitating the connection between the liquid cooling pipe 91 and the refrigeration channel.

[0108] In some embodiments, Figure 2 and Figure 3 The liquid cooling pipe 91 passes through the first connecting hole 44 , and the liquid cooling pipe 91 is spaced apart from the connecting row 71 .

[0109] It is understandable that the liquid cooling pipe and the connecting row 71 can pass through the first connecting hole 44 at the same time, thereby realizing the sharing of the first connecting hole 44. At the same time, the liquid cooling pipe 91 and the connecting row 71 are arranged at intervals, thereby avoiding interference between the liquid cooling pipe 91 and the connecting row 71, and preventing the liquid cooling pipe 91 and the connecting row 71 from affecting each other.

[0110] In some embodiments, Figure 2 and Figure 3 The connection row 71 includes a first connection block 711 and a second connection block 712 which are connected in sequence. The first connection block 711 is inserted into the first connection hole 44 and connects the second connection block 712 and the battery module 6. An installation space 714 is formed between the second connection block 712 and the outer wall surface of the box body 4.

[0111] The liquid cooling pipe 91 includes a first secondary pipe 911 and a second secondary pipe 912 which are connected in sequence. The first secondary pipe 911 passes through the first connecting hole 44 and connects the second secondary pipe 912 and the cooling channel of the battery cell module 6 . The second secondary pipe 912 is located in the installation space 714 .

[0112] It is understandable that the second connection block 712 is spaced apart from the outer wall of the box body 4 to form an installation space 714 between the second connection block 712 and the outer wall of the box body. The second secondary pipe 912 can be arranged in the installation space 714, thereby avoiding interference between the second secondary pipe 912 and the second connection block 712, thereby ensuring that both the liquid cooling pipe 91 and the connection row 71 can be installed smoothly.

[0113] In some embodiments, Figure 2 and Figure 3 ,like Figure 2 and Figure 3 The connection row 71 further includes a bending block 713 . The first connection block 711 and the second connection block 712 extend in different directions. The bending block 713 connects the first connection block 711 and the second connection block 712 .

[0114] It can be understood that the bending block 713 is used to connect the first connection block 711 and the second connection block 712 having different extension directions, so as to facilitate the connection between the first connection block 711 and the second connection block 712 .

[0115] It can be understood that one end of the bending block 713 extends toward the first connecting block 711 to facilitate the connection between the bending block 713 and the first connecting block 711 , and the other end of the bending block 713 extends toward the second connecting block 712 to facilitate the connection between the bending block 713 and the second connecting block 712 .

[0116] In some embodiments, Figure 2 The box body 4 includes a main body 46 and a top cover 47 . The top cover 47 is connected to the main body 46 . The top cover 47 and the main body 46 are arranged to form a receiving cavity 41 . A sealing member 48 is provided at the connection between the top cover 47 and the main body 46 .

[0117] It is understandable that the seal 48 can improve the sealing performance of the connection between the top cover 47 and the body 46 to reduce the impact of the external environment on components such as the battery module in the accommodating cavity 41 .

[0118] In some examples, the sealing member 48 is, for example, sealing foam or sealing glue.

[0119] In some embodiments, Figure 6 and Figure 7 The battery cell module includes at least two battery cell assemblies 1 stacked in sequence, the battery cell assembly 1 includes a shell 11 and a battery cell 12, the shell 11 is formed with an installation cavity 111, the battery cell 12 is installed in the installation cavity 111, the bottom plate 112 of the shell 11 is a cold plate, and the bottom plate 112 of the shell 11 of at least part of the battery cell assembly 1 is in contact with the top plate of the shell 11 of the adjacent battery cell assembly 1.

[0120] According to the battery cell module of the embodiment of the present application, at least two battery cell assemblies 1 are stacked in sequence to form a battery cell module, and the bottom plate 112 of the shell 11 of at least some of the battery cell assemblies 1 will abut against the top plate of the shell 11 of the adjacent battery cell assembly 1, so that the bottom plate 112 of the shell 11 of at least some of the battery cell assemblies 1 can cool and dissipate heat for the battery cell 12. The cold plate, as a part of the structure of the shell 11, simplifies the structure of the battery cell assembly 1. At the same time, the bottom plate 112 can also cool and dissipate heat for the top of the adjacent battery cell assembly 1, that is, it can cool and dissipate heat for the top of the battery cell 12 of the adjacent battery cell assembly 1, thereby realizing the reuse of the bottom plate 112 of the shell 11 of the battery cell assembly 1, so that the bottom plate 112 can cool and dissipate heat for the bottom of the current battery cell assembly 1 and the top of the adjacent battery cell assembly 1 at the same time, thereby simplifying the structure of the battery cell module, realizing simultaneous cooling and dissipation of the bottom and top of the battery cells 12 of at least part of the battery cell assembly 1, increasing the cooling effect of the battery cell 12, improving the temperature consistency of the battery cell 12, reducing the temperature difference between different ends of the battery cell 12, and benefiting to improving the cycle life of the battery cell 12.

[0121] Exemplarily, the battery cell module includes a first battery cell module, a second battery cell module, and a third battery cell module stacked in sequence, the top of the first battery cell module abuts against the bottom of the second battery cell module, and the top of the second battery cell module abuts against the bottom of the third battery cell module. The bottom plate 112 of the shell 11 of the second battery cell module can cool and dissipate heat for the top of the first battery cell module and the bottom of the second battery cell module at the same time, and the bottom plate 112 of the shell 11 of the third battery cell module can cool and dissipate heat for the bottom of the third battery cell module and the top of the second battery cell module at the same time. In other words, at least the bottom and top of the first battery cell module and the second battery cell module can be cooled and dissipated at the same time.

[0122] In some examples, the battery cell assembly 1 includes a plurality of battery cells 12 , and the plurality of battery cells 12 are stacked. End plates are provided on both sides of the shell 11 of the battery cell assembly 1 , and the end plates can pre-tighten the plurality of battery cells 12 .

[0123] In some embodiments, Figure 6 A heat conducting layer 13 is provided between two adjacent battery core assemblies 1 .

[0124] It can be understood that by setting a heat-conducting layer 13 between two adjacent battery cell assemblies 1, the heat transfer effect between the two adjacent battery cell assemblies 1 can be improved, so that the bottom plate 112 of the shell 11 of one of the battery cell assemblies 1 can effectively cool and dissipate the top of the adjacent battery cell assembly 1.

[0125] Exemplarily, the heat-conducting layer 13 is, for example, a heat-conducting structural adhesive or a heat-conducting gasket.

[0126] In some embodiments, two adjacent battery cell assemblies 1 are detachably connected to facilitate maintenance and replacement of the battery cell assemblies 1 .

[0127] In some embodiments, the battery cell module further includes a connecting component 2 , which connects the side walls of two adjacent battery cell components 1 .

[0128] It can be understood that the connection component 2 is used to connect two adjacent battery cell assemblies 1 together, so that the two adjacent battery cell assemblies 1 remain connected, so that the tops and bottoms of the two adjacent battery cell assemblies 1 are abutted, and then the bottom plate 112 of the shell 11 of one of the battery cell assemblies 1 can cool and dissipate the top of the adjacent battery cell assembly 1. At the same time, the connection component 2 is connected to the side wall surface of the battery cell assembly 1, so that the connection component 2 will not affect the stacking of the two adjacent battery cell assemblies 1, that is, there will be no gap between the two adjacent battery cell assemblies 1, so that the bottom plate 112 of the shell 11 of the current battery cell assembly 1 can cool and dissipate the top of the adjacent battery cell assembly 1.

[0129] In some examples, such as Figure 8 The connecting component 2 includes a connecting piece 21, one end of the connecting piece 21 is connected to the side wall surface of one of the two adjacent battery cell components 1, and the other end of the connecting piece 21 is connected to the side wall surface of the other of the two adjacent battery cell components 1, so that the connection between the two adjacent battery cell components 1 can be achieved.

[0130] Specifically, connecting holes are provided at both ends of the connecting sheet 21. A fastener is inserted into the connecting hole at one end of the connecting sheet 21 and connected to the side wall surface of one of the two adjacent battery cell assemblies 1. This can achieve connection between one end of the connecting sheet 21 and the side wall surface of one of the two adjacent battery cell assemblies 1. The connection between the other end of the connecting sheet 21 and the side wall surface of the other of the two adjacent battery cell assemblies 1 is similar.

[0131] In some embodiments, Figure 8 The battery cell module also includes a reinforcing member 3 , and the side wall surface of each battery cell assembly 1 is connected to the reinforcing member 3 .

[0132] It can be understood that different battery cell assemblies 1 are fixedly connected together by using the reinforcement member 3 to achieve positioning of at least two battery cell assemblies 1 stacked in sequence, so as to facilitate the installation and movement of subsequent battery cell modules.

[0133] Specifically, Figure 8 The reinforcement 3 includes a horizontal plate 31 and at least two vertical plates 32, the at least two vertical plates 32 include a first vertical plate 32 and a second vertical plate 32, the first vertical plate 32 and the second vertical plate 32 are arranged side by side, the side wall surface of each battery cell assembly 1 is connected to the first vertical plate 32, the side wall surface of each battery cell assembly 1 is connected to the second vertical plate 32, and the horizontal plate 31 connects the first vertical plate 32 and the second vertical plate 32.

[0134] It can be understood that at least two battery cell assemblies 1 stacked in sequence are fixedly connected together by the first vertical plate 32, and at least two battery cell assemblies 1 stacked in sequence are fixedly connected together by the second vertical plate 32, thereby improving the fixed connection effect between different battery cell assemblies 1.

[0135] The first vertical plate 32 and the second vertical plate 32 are connected by using the horizontal plate 31 so that the first vertical plate 32 and the second vertical plate 32 are connected, which can improve the fixing connection effect of different battery cell assemblies 1.

[0136] In some embodiments, Fig. 9 and Fig.10 The battery pack includes at least three fixed connectors 5, which connect the battery cell module and the box body 4. Along the height direction of the box body 4, at least three fixed connectors 5 are arranged in sequence.

[0137] It is understandable that different fixed connectors 5 are located at different heights, that is, the battery cell module is at different heights from the same at least three fixed positions, which can effectively disperse the load, reduce the lever arm, and make the battery pack more resistant to impact and vibration.

[0138] In some embodiments, Fig. 9 and Fig.10 At least three fixed connectors 5 include a first fixed bracket 51, one end of the box body 4 is formed with a mounting port connected to the accommodating cavity 41, and an mounting groove 42 is formed at the end surface of one end of the box body 4. The first fixed bracket 51 is arranged in the mounting groove 42, and the first fixed bracket 51 connects the battery module and the box body 4.

[0139] It can be understood that the first fixing bracket 51 can fix the battery module and the box body 4 together. At the same time, a mounting groove 42 for mounting the first fixing bracket 51 is provided at the end surface of one end of the box body 4. When the first fixing bracket 51 is arranged in the mounting groove 42, the first fixing bracket 51 can be operated through the notch of the mounting groove 42, so as to facilitate the first fixing bracket 51 and the battery module to be fixedly connected together, and to facilitate the first fixing bracket 51 and the box body 4 to be fixedly connected together.

[0140] Exemplarily, along the height direction of the box body 4 , the depth of the installation groove 42 is greater than the height of the first fixing bracket 51 , so that the first fixing bracket 51 will not protrude from the box body 4 after being installed in the installation groove 42 , so that the first fixing bracket 51 will not affect the height of the box body 4 .

[0141] In some embodiments, Fig. 9 and Fig.10 At least three fixing connectors 5 include a second fixing bracket 52 . A mounting hole 43 is formed on the side wall of the box body 4 . The second fixing bracket 52 is disposed in the mounting hole 43 . The second fixing bracket 52 connects the battery module and the box body 4 .

[0142] It can be understood that the second fixing bracket 52 can fix the battery module and the box body 4 together. At the same time, a mounting hole 43 for accommodating the second fixing bracket 52 is formed at the side wall of the box body 4. When the second fixing bracket 52 is arranged in the mounting hole 43, the second fixing bracket 52 can be operated through the mounting hole 43, thereby facilitating the fixing of the second fixing bracket 52 and the battery module together, and facilitating the fixing of the second fixing bracket 52 and the box body 4 together.

[0143] In some embodiments, the middle portion of the inner wall of the box body 4 is connected to the side wall surface of the battery cell module through a connecting block.

[0144] In some embodiments, Fig.11 and Fig.12 At least two battery cell assemblies 1 stacked in sequence include a first battery cell module and a second battery cell module. The bottom plate 112 of the shell 11 of the first battery cell module includes a heat conductor 123 and a first cooling surface 124 and a second cooling surface 125 arranged opposite to each other. The heat conductor 123 connects the first cooling surface 124 and the second cooling surface 125. The first cooling surface 124 abuts against the battery cell 12 of the first battery cell module, and the second cooling surface 125 abuts against the second battery cell module.

[0145] It can be understood that the bottom plate 112 of the first battery cell module is set between the battery cell 12 of the first battery cell module and the second battery cell module, the first cooling surface 124 of the bottom plate 112 of the first battery cell module can cool and dissipate the battery cell 12 of the first battery cell module, and the second cooling surface 125 of the bottom plate 112 of the first battery cell module can cool and dissipate the second battery cell module, so as to achieve simultaneous cooling and dissipation of the battery cell 12 of the first battery cell module and the second battery cell module, and the battery cell 12 of the first battery cell module and the second battery cell module share the bottom plate 112 of the first battery cell module, thereby simplifying the structure of the battery pack. The heat conducting member 123 can conduct heat between the first cooling surface 124 and the second cooling surface 125, which is conducive to uniformizing the temperature between the battery cell 12 of the first battery cell module and the second battery cell module, reducing the temperature difference between the first battery cell module and the second battery cell module, improving the temperature uniformity of the battery pack, and helping to improve the cycle life of the battery pack.

[0146] Exemplarily, the bottom plate 112 of the first battery cell module may be integrally formed or may be formed by assembling different components.

[0147] In some examples, the heat conductive member 123 is, for example, a heat conductive structural adhesive or a heat conductive gasket.

[0148] In some embodiments, Fig.11 and Fig.12 The bottom plate 112 of the first battery cell module includes a first cold plate 126 and a second cold plate 127 that are arranged opposite to each other, the heat conductor 123 connects the first cold plate 126 and the second cold plate 127, a first cooling surface 124 is formed on the side of the first cold plate 126 facing away from the second cold plate 127, and a second cooling surface 125 is formed on the side of the second cold plate 127 facing away from the first cold plate 126.

[0149] It can be understood that the first cold plate 126 is formed with a first cooling surface 124, that is, the first cold plate 126 can cool and dissipate the battery cell 12 of the first battery cell module, and the second cold plate 127 is formed with a second cooling surface 125, that is, the second cold plate 127 can cool and dissipate the second battery cell module. The heat conductive member 123 connects the first cold plate 126 and the second cold plate 127, and the first cold plate 126 and the second cold plate 127 can exchange heat through the heat conductive member 123, thereby improving the temperature uniformity between the first cold plate 126 and the second cold plate 127, which is equivalent to that the first cold plate 126 and the second cold plate 127 can both cool and dissipate the battery cell 12 of the first battery cell module. At the same time, the first cold plate 126 and the second cold plate 127 can both cool and dissipate the second battery cell module, thereby reducing the temperature difference between the battery cell 12 of the first battery cell module and the second battery cell module, improving the temperature uniformity of the battery pack, and facilitating the cycle life of the battery pack.

[0150] In some examples, such as Fig.11 and Fig.12 The heat conducting member 123 is located between the first cold plate 126 and the second cold plate 127 to connect the first cold plate 126 and the second cold plate 127. The heat conducting member 123 may also be located on one side of the first cold plate 126 and the second cold plate 127, for example, located at the side wall surface of the first cold plate 126, and the heat conducting member 123 connects the side wall surfaces of the first cold plate 126 and the second cold plate 127.

[0151] In some embodiments, Fig.11 and Fig.12 The first cold plate 126 is formed with at least two first flow channel groups 1261 , a first accommodation space 1262 is provided between two adjacent first flow channel groups 1261 , and part of the heat conducting member 123 is located in the first accommodation space 1262 .

[0152] It can be understood that at least two first flow channel groups 1261 are connected in sequence, and part of the heat conductive member 123 is set in the first accommodation space 1262 between two adjacent first flow channel groups 1261, so that the heat conductive member 123 can improve the temperature uniformity between the two adjacent first flow channel groups 1261, so that the first cold plate 126 can evenly dissipate heat for the battery cells 12 of the first battery cell module. At the same time, since the heat conductive member 123 connects the first cold plate 126 and the second cold plate 127, the heat conductive member 123 can allow each first flow channel group 1261 to exchange heat with the second cold plate 127, thereby improving the temperature uniformity between the first cold plate 126 and the second cold plate 127, thereby reducing the temperature difference between the battery cells 12 of the first battery cell module and the second battery cell module, improving the temperature uniformity of the battery pack, and facilitating the improvement of the cycle life of the battery pack.

[0153] In some embodiments, Fig.11 and Fig.12 The first flow channel group 1261 includes at least two first cooling flow channels 1263 , and part of the heat conducting element 123 is located between two adjacent first cooling flow channels 1263 .

[0154] It can be understood that at least two first cooling channels 1263 are connected in sequence, and part of the heat conductive member 123 is arranged between two adjacent first cooling channels 1263, so that the heat conductive member 123 can improve the temperature uniformity between the two adjacent first cooling channels 1263, so that the first cold plate 126 can evenly dissipate heat for the battery cell 12 of the first battery cell module. At the same time, since the heat conductive member 123 connects the first cold plate 126 and the second cold plate 127, the heat conductive member 123 can allow each first cooling channel 1263 to exchange heat with the second cold plate 127, thereby improving the temperature uniformity between the first cold plate 126 and the second cold plate 127, thereby reducing the temperature difference between the battery cell 12 of the first battery cell module and the second battery cell module, improving the temperature uniformity of the battery pack, and facilitating the improvement of the cycle life of the battery pack.

[0155] In some embodiments, Fig.11 and Fig.12 The second cold plate 127 is formed with at least two second flow channel groups 1271 , wherein a second accommodating space 1272 is provided between two adjacent second flow channel groups 1271 , and part of the heat conducting member 123 is located in the second accommodating space 1272 .

[0156] It can be understood that at least two second flow channel groups 1271 are connected in sequence, and part of the heat conductive member 123 is set in the second accommodating space 1272 between two adjacent second flow channel groups 1271, so that the heat conductive member 123 can improve the temperature uniformity between the two adjacent second flow channel groups 1271, so that the second cold plate 127 can evenly dissipate heat for the second battery module. At the same time, since the heat conductive member 123 connects the first cold plate 126 and the second cold plate 127, the heat conductive member 123 can allow each second flow channel group 1271 to exchange heat with the first cold plate 126, thereby improving the temperature uniformity between the first cold plate 126 and the second cold plate 127, thereby reducing the temperature difference between the battery cell 12 of the first battery module and the second battery module, improving the temperature uniformity of the battery pack, and helping to improve the cycle life of the battery pack.

[0157] In some embodiments, Fig.11 and Fig.12 The second flow channel group 1271 includes at least two second cooling flow channels 1273 , and part of the heat conducting element 123 is located between two adjacent second cooling flow channels 1273 .

[0158] It can be understood that at least two second cooling channels 1273 are connected in sequence, and part of the heat conductive member 123 is arranged between two adjacent second cooling channels 1273, so that the heat conductive member 123 can improve the temperature uniformity between the two adjacent second cooling channels 1273, so that the second cold plate 127 can evenly dissipate heat for the second battery module. At the same time, since the heat conductive member 123 connects the first cold plate 126 and the second cold plate 127, the heat conductive member 123 can allow each second cooling channel 1273 to exchange heat with the first cold plate 126, thereby improving the temperature uniformity between the first cold plate 126 and the second cold plate 127, thereby reducing the temperature difference between the battery cell 12 of the first battery module and the second battery module, improving the temperature uniformity of the battery pack, and facilitating the improvement of the cycle life of the battery pack.

[0159] In some embodiments, at least two first flow channel groups 1261 and at least two second flow channel groups 1271 are arranged alternately. The cooling uniformity of the bottom plate 112 of the first battery module can be effectively improved, so that the bottom plate 112 of the first battery module can evenly dissipate heat for the battery 12 of the first battery module and the second battery module, thereby reducing the temperature difference between the battery 12 of the first battery module and the second battery module.

[0160] According to an embodiment of the second aspect of the present application, the electrical equipment includes the above-mentioned battery pack.

[0161] According to the electric device of the embodiment of the present application, the battery pack installs the cell module 6 in the accommodating cavity 41 of the box body 4, and arranges at least part of the heat transfer component 9 outside the accommodating cavity 41, so that at least part of the heat transfer component 9 does not occupy the space of the accommodating cavity 41, which can reduce the size of the accommodating cavity 41, and further reduce the volume of the box body 4. After the volume of the box body 4 is reduced, the weight will also be reduced, and further reduce the weight of the battery pack, thereby reducing the cost of the battery pack.

[0162] At the same time, the heat transfer component 9 is arranged outside the accommodating cavity 41. When the heat transfer component 9 of the battery pack needs to be inspected and replaced, the box body 4 does not need to be opened, which is convenient for the maintenance of the battery pack and further facilitates the inspection and maintenance of the electrical equipment.

[0163] It should be noted that the electrical equipment may be a vehicle, an aircraft, or a household appliance. It should be noted that the above is only an example of an electrical equipment and does not specifically limit the electrical equipment.

[0164] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A battery pack, characterized in that: include: A box body is formed with a receiving cavity; A battery cell module, comprising a plurality of battery cells, wherein the plurality of battery cells are arranged in the accommodation cavity; A heat transfer component is connected to the battery core module, and is used for exchanging heat with the battery core module. At least part of the heat transfer component is located outside the accommodating cavity.

2. The battery pack according to claim 1, characterized in that: At least part of the heat transfer component is arranged on the outer wall surface of the box body.

3. The battery pack according to claim 1 or 2, characterized in that: The battery pack also includes an electrical component, which is connected to the battery cell module, and at least part of the electrical component is located outside the accommodating cavity.

4. The battery pack according to claim 3, characterized in that: At least part of the electrical components are arranged on the outer wall surface of the box.

5. The battery pack according to claim 3, characterized in that: The battery pack also includes a second cover plate, which is connected to the outer wall of the box body. A second space is formed between the second cover plate and the outer wall of the box body. At least part of the heat transfer component and / or at least part of the electrical component is located in the second space.

6. The battery pack according to claim 3, characterized in that: The battery pack also includes a connection row, one end of which is located in the accommodating cavity and electrically connected to the battery cell module, and the other end of which extends outside the accommodating cavity and is connected to the electrical component.

7. The battery pack according to claim 6, characterized in that: The box body is formed with a first connection hole connected to the accommodating cavity, the first connection hole is opposite to the output pole of the battery cell module, and the other end of the connection row is passed through the first connection hole to be located outside the accommodating cavity.

8. The battery pack according to claim 7, characterized in that: The heat transfer component includes a liquid cooling pipe, which is connected to a cooling channel of the battery core module, and at least a portion of the liquid cooling pipe is located outside the accommodating cavity.

9. The battery pack according to claim 8, characterized in that: The liquid cooling pipe is passed through the first connecting hole, and the liquid cooling pipe is spaced apart from the connecting row.

10. The battery pack according to claim 9, characterized in that: The connection row includes a first connection block and a second connection block connected in sequence, the first connection block is inserted into the first connection hole and connects the second connection block and the battery module, and an installation space is formed between the second connection block and the outer wall surface of the box body; The liquid cooling pipeline includes a first secondary pipeline and a second secondary pipeline connected in sequence, the first secondary pipeline is passed through the first connecting hole and connects the second secondary pipeline and the cooling channel of the battery module, and the second secondary pipeline is located in the installation space.

11. The battery pack according to claim 6, characterized in that: The electrical component includes a high-voltage connector and a high-voltage plug-in connector. The high-voltage connector is arranged on the outer wall of the box, and the other end of the connection row is electrically connected to the high-voltage connector. The high-voltage plug-in connector is arranged on the outer wall of the box, and the other end of the connection row is electrically connected to the high-voltage connector through the high-voltage plug-in connector.

12. The battery pack according to claim 3, characterized in that: The electrical component includes a BMS module, the BMS module is arranged on the outer wall surface of the box, and the battery cell module is electrically connected to the BMS module; The box body is formed with a second connecting hole communicating with the accommodating cavity, and the electrical component includes a connecting harness, one end of the connecting harness is electrically connected to the battery cell module, and the other end of the connecting harness is passed through the second connecting hole and electrically connected to the BMS module, and at least part of the connecting harness is located outside the accommodating cavity.

13. The battery pack according to claim 3, characterized in that: The electrical component includes an MSD module, and the MSD module is arranged on the outer wall of the box; and / or, The electrical component includes a PDU module, and the PDU module is arranged on the outer wall surface of the box.

14. The battery pack according to claim 3, characterized in that: At least part of the electrical components and at least part of the heat transfer components are arranged on the same outer wall surface of the box body, or at least part of the electrical components and at least part of the heat transfer components are respectively arranged on different outer wall surfaces of the box body.

15. The battery pack according to claim 3, characterized in that: The box body comprises a main body and a top cover, wherein the top cover is connected to the main body, the top cover and the main body are arranged to form the accommodating cavity, and a sealing member is arranged at the connection between the top cover and the main body.

16. An electrical equipment, characterized in that: Comprising a battery pack as claimed in any one of claims 1 to 15.

Images