Battery device and electric equipment

Abstract

The utility model relates to the technical field of batteries, and provides a battery device and electric equipment. The battery device comprises a first battery part, a second battery part and a circuit board; the first battery part and the second battery part are arranged along a first direction; the first battery part is provided with a first surface and a second surface which are oppositely arranged, and the second battery part is provided with a third surface and a fourth surface which are oppositely arranged; the first surface and the third surface face the same side; the battery device has a mounting area; the mounting area is located between the plane of the first surface and the plane of the third surface; the circuit board is at least partially located in the mounting area; the circuit board is electrically connected with the first battery part and the second battery part respectively; the first direction is perpendicular to the second direction. Through the structural arrangement, the space ratio of the battery device is reduced, and the energy density of the battery device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a battery device and a power consumption equipment. BACKGROUND

[0002] With the increasing demand for electronic products, the performance of the batteries of electronic products is also facing severe challenges, especially the improvement of the energy density of the batteries.

[0003] In the related art, the battery includes a shell, a battery cell and a circuit board, the battery cell and the circuit board are located in the shell, the battery cell and the circuit board are electrically connected, and the voltage, current and temperature of the battery cell are monitored by a battery management system (BMS) on the circuit board to ensure the safe and stable operation of the battery.

[0004] Research shows that under the condition that the volume of the shell of the battery is constant, the space ratio of the circuit board is difficult to reduce, so that the energy density of the battery is not easy to improve. CONTENT OF THE INVENTION

[0005] The present application provides a battery device and a power consumption equipment, which can reduce the space ratio of the circuit board and the space ratio of the battery device, and improve the energy density of the battery device.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0007] In a first aspect, the present application provides a battery device, comprising: a first battery part, a second battery part and a circuit board;

[0008] The first battery part and the second battery part are arranged along a first direction; the first battery part has a first surface and a second surface arranged oppositely, and the second battery part has a third surface and a fourth surface arranged oppositely; the first surface and the third surface face the same side of the battery device;

[0009] The battery device has a mounting area; along a second direction, the mounting area is located between the plane where the first surface is located and the plane where the third surface is located;

[0010] The circuit board is at least partially located in the mounting area; the circuit board is electrically connected to the first battery part and the second battery part respectively;

[0011] The first direction and the second direction are perpendicular.

[0012] As an optional implementation, along the second direction, the second surface and the fourth surface are flush with each other.

[0013] As an optional implementation, edges of the first surface and the second surface along the same side of the third direction are flush.

[0014] edges of the third surface and the fourth surface along the same side of the third direction are flush.

[0015] edges of the second surface and the fourth surface along the same side of the third direction are flush.

[0016] The third direction, the first direction, and the second direction are perpendicular to each other.

[0017] As an optional implementation, the first battery part includes at least one first battery cell; and / or, the second battery part includes at least one second battery cell.

[0018] As an optional implementation, the first battery cell is a plurality, and the plurality of first battery cells are arranged in an array.

[0019] As an optional implementation, the second battery cell is a plurality, and the plurality of second battery cells are arranged in an array.

[0020] As an optional implementation, along the first direction, the extension length of the circuit board is less than or equal to the extension length of the first battery part.

[0021] And / or, along the second direction, the end of the circuit board away from the mounting area is flush with the third surface of the second battery part.

[0022] And / or, along the third direction, the extension length of the circuit board is less than or equal to the extension length of the first battery part.

[0023] As an optional implementation, the first battery part has a first tab, and the first battery part is electrically connected to the circuit board through the first tab.

[0024] The second battery part has a second tab, and the second battery part is electrically connected to the circuit board through the second tab.

[0025] As an optional implementation, the first battery part has a fifth surface, the fifth surface is adjacent to the first surface and the second surface, and the fifth surface is opposite to the second battery part; the first tab is arranged on the fifth surface.

[0026] As an optional implementation, the first tab is bent relative to the fifth surface to form a first tab bending part; along the first direction, the first tab bending part and the fifth surface are at least partially opposite.

[0027] As an optional implementation, the first tab bending portion and the fifth surface have an included angle.

[0028] As an optional implementation, the first tab bending portion and the fifth surface are parallel.

[0029] As an optional implementation, the second tab is disposed on the third surface.

[0030] As an optional implementation, the second tab is bent relative to the third surface to form a second tab bending portion.

[0031] In the second direction, the second tab bending portion and the third surface are at least partially opposite.

[0032] As an optional implementation, the second tab bending portion and the third surface have an included angle.

[0033] As an optional implementation, the second tab bending portion and the third surface are parallel.

[0034] As an optional implementation, the battery device further comprises a connecting assembly; the first tab is adapted to be electrically connected by connecting the connecting assembly and the circuit board;

[0035] And / or, the second tab is adapted to be electrically connected by connecting the connecting assembly and the circuit board.

[0036] As an optional implementation, the connecting assembly comprises a first connecting piece, and the first tab is adapted to be electrically connected by connecting the first connecting piece and the circuit board.

[0037] And / or, the connecting assembly comprises a second connecting piece, and the second tab is adapted to be electrically connected by connecting the second connecting piece and the circuit board.

[0038] As an optional implementation, the first connecting piece and the second connecting piece each comprise a body; the first tab is adapted to be electrically connected by connecting the body of the first connecting piece and the circuit board.

[0039] And / or, the second tab is adapted to be electrically connected by connecting the body of the second connecting piece and the circuit board.

[0040] As an optional implementation, the first connecting piece and the second connecting piece each comprise a connecting portion.

[0041] In the first connecting piece, the connecting portion and the body are connected and electrically conductive;

[0042] And / or, in the second connecting piece, the connecting portion and the body are connected and electrically conductive.

[0043] The first tab is electrically connected to the connecting portion of the first connector;

[0044] And / or, the second electrode tab is electrically connected to the connecting portion of the second connector.

[0045] As an optional embodiment, the first connecting member and the second connecting member each correspond to a plurality of connecting portions;

[0046] In the first connector, at least one of the plurality of connecting portions is connected to the first tab, and at least another connecting portion is connected to the circuit board, so that the first battery unit is electrically connected to the circuit board through the first connector;

[0047] And / or, in the second connector, at least one of the plurality of connecting portions is connected to the second tab, and at least another one is connected to the circuit board, so that the second battery unit is electrically connected to the circuit board through the second connector.

[0048] As an optional implementation, an extension direction of the body of the first connecting member is perpendicular to an extension direction of the body of the second connecting member.

[0049] As an optional embodiment, in the first connecting member, the plurality of connecting portions are spaced apart and distributed along the extension direction of the body;

[0050] And / or, in the second connecting member, the plurality of connecting portions are spaced apart and distributed along the extension direction of the body.

[0051] As an optional embodiment, in the first connecting member, the connecting portion protrudes from a surface of the body close to the first battery portion;

[0052] And / or, in the second connecting member, the connecting portion protrudes from a surface of the body close to the second battery portion.

[0053] As an optional implementation, the first connecting member is located on the first electrode tab.

[0054] As an optional embodiment, the second battery unit has a sixth surface, the sixth surface is adjacent to the third surface and the fourth surface, and the sixth surface is opposite to the first battery unit;

[0055] The sixth surface covers the orthographic projection of the first connecting member on the sixth surface.

[0056] As an optional implementation, the second connecting member is located on the second electrode tab.

[0057] As an optional implementation, the third surface of the second battery part covers a projection of the second connecting piece on a plane where the third surface of the second battery part is located.

[0058] The first surface of the first battery part covers a projection of the second connecting piece on a plane where the first surface of the first battery part is located.

[0059] The battery device provided by the application has the mounting area between the plane where the first surface is located and the plane where the third surface is located, the circuit board is placed in the mounting area, the space utilization of the battery device can be improved, the space proportion of the circuit board is reduced, the space proportion of the battery device is further reduced, and the overall energy density of the battery device is improved. The circuit board is electrically connected with the first battery part and the second battery part respectively, and the circuit communication in the battery device is realized.

[0060] In a second aspect, the application provides a power consumption device including the battery device in the first aspect.

[0061] The power consumption device provided by the application can improve the energy density because the battery device in the first aspect is included. BRIEF DESCRIPTION OF DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.

[0063] Figure 1 The schematic diagram of the battery device provided by the embodiments of the application Figure 1 ;

[0064] Figure 2 The schematic diagram of the first battery part in the battery device provided by the embodiments of the application

[0065] Figure 3 The schematic diagram of the second battery part in the battery device provided by the embodiments of the application

[0066] Figure 4 The schematic diagram of the battery device provided by the embodiments of the application Figure 2 ;

[0067] Figure 5 The schematic diagram of the first connecting piece in the battery device provided by the embodiments of the application

[0068] Figure 6 The schematic diagram of the second connecting piece in the battery device provided by the embodiments of the application

[0069] Figure 7 A schematic view of a circuit board in a battery device provided by an embodiment of the present application.

[0070] Legend of reference signs:

[0071] 100 - battery device;

[0072] 110 - first battery part; 111 - first surface; 112 - second surface; 113 - first tab; 114 - fifth surface;

[0073] 120 - second battery part; 121 - third surface; 122 - fourth surface; 123 - sixth surface; 124 - second tab;

[0074] 130 - circuit board;

[0075] 140 - mounting area;

[0076] 150 - connecting assembly;

[0077] 151 - first connecting piece; 1511 - first body; 1512 - first connecting part;

[0078] 152 - second connecting piece; 1521 - second body; 1522 - second connecting part. DETAILED DESCRIPTION

[0079] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application. The embodiments described below and the features in the embodiments can be combined with each other without conflict.

[0080] With the increasing demand for electronic products, the performance of the batteries of the electronic products also faces severe challenges, especially the improvement of the energy density of the batteries.

[0081] In the related art, a battery includes a shell, a battery cell and a circuit board, the battery cell and the circuit board are located in the shell, the battery cell and the circuit board are electrically connected, and the voltage, current and temperature of the battery cell are monitored by a battery management system (BMS) on the circuit board to ensure the safe and stable operation of the battery.

[0082] Research shows that under the condition that the volume of the shell of the battery is constant, the space ratio of the circuit board is difficult to reduce, so that the energy density of the battery is not easy to improve.

[0083] In order to overcome the defects in the prior art, the application provides a battery device and a power consumption equipment. The battery device comprises a first battery part, a second battery part and a circuit board. The first battery part and the second battery part are arranged along a first direction. The first battery part has a first surface and a second surface arranged oppositely, and the second battery part has a third surface and a fourth surface arranged oppositely. The first surface and the third surface face the same side of the battery device. The battery device has a mounting area. Along a second direction, the mounting area is located between the first surface and the third surface. Through the structural arrangement of the battery device, the circuit board is placed in the mounting area, the space ratio of the circuit board is reduced, the connection between the circuit board and the first battery part and the second battery part is more compact, the space utilization of the battery device is improved, and the energy density of the battery device is further improved.

[0084] The content of the application will be described in detail below with reference to the drawings, so that those skilled in the art can more clearly and detailedly understand the content of the application.

[0085] As Figures 1-7 shown, the application provides a battery device 100, comprising a first battery part 110, a second battery part 120 and a circuit board 130.

[0086] Among them, the first battery part 110 and the second battery part 120 are arranged along a first direction. The first battery part 110 has a first surface 111 and a second surface 112 arranged oppositely, and the second battery part 120 has a third surface 121 and a fourth surface 122 arranged oppositely. The first surface 111 and the third surface 121 face the same side of the battery device 100. The battery device 100 has a mounting area 140. Along a second direction, the mounting area 140 is located between the plane where the first surface 111 is located and the plane where the third surface 121 is located. The circuit board 130 is at least partially located in the mounting area 140. The circuit board 130 is electrically connected to the first battery part 110 and the second battery part 120 respectively. The first direction and the second direction are perpendicular.

[0087] According to the battery device 100 provided by the application, the mounting area 140 is located between the plane where the first surface 111 is located and the plane where the third surface 121 is located. The circuit board 130 is placed in the mounting area 140, which can improve the space utilization of the battery device 100, reduce the space ratio of the circuit board 130, further reduce the space ratio of the battery device 100, and thus improve the overall energy density of the battery device 100. The circuit board 130 is electrically connected to the first battery part 110 and the second battery part 120 respectively, realizing the electrical connection in the battery device 100.

[0088] The specific structure of the battery device 100 and various possible embodiments are described in detail below.

[0089] The battery device 100 provided by the embodiments of the present application can be applied in the fields of new energy vehicles, electronic devices, energy storage devices, etc., and the embodiments of the present application do not limit this.

[0090] For example, the first battery part 110 and the second battery part 120 in the embodiments of the present application are arranged along a first direction (Y), where the first direction can be the length direction of the first battery part 110, or the thickness direction of the first battery part 110.

[0091] The embodiments of the present application take the first battery part 110 and the second battery part 120 along the length direction (Y) of the first battery part 110 as an example for description. The first battery part 110 has a first surface 111 and a second surface 112, and the first surface 111 and the second surface 112 are oppositely arranged along the Z direction. The second battery part 120 has a third surface 121 and a fourth surface 122, and the third surface 121 and the fourth surface 122 are also oppositely arranged along the Z direction. Wherein, along the Z direction, the first surface 111 and the third surface 121 are towards the same side of the battery device 100. Correspondingly, the second surface 112 and the fourth surface 122 are towards the same side of the battery device 100.

[0092] The mounting area 140 of the battery device 100 is located between the plane where the first surface 111 is located and the plane where the second surface 112 is located. That is to say, the first surface 111 and the second surface 112 have a spacing along the Z direction. The circuit board 130 is arranged in the mounting area 140 to reduce the overall space ratio of the battery device 100, which helps to improve the energy density of the battery device 100.

[0093] As an optional embodiment, along the second direction (Z), the second surface 112 and the fourth surface 122 are flush with each other. In this way, the overall structure of the battery device 100 is regular, which is convenient for packaging of the battery device 100. The mounting area 140 in the embodiments of the present application is only located between the first surface 111 and the third surface 121.

[0094] In some embodiments, by arranging the first battery part 110 and the second battery part 120 along the first direction with the same shape, the spacing between the first battery part 110 and the second battery part 120 can be reduced, the components of the battery device 100 are relatively compact, the space utilization in the battery device 100 is improved, and the energy density of the battery device 100 is further improved.

[0095] For example, the shapes of the first battery part 110 and the second battery part 120 can both be columnar, or both be square, etc.

[0096] As an optional embodiment, edges of the first surface 111 and the second surface 112 along the same side of the third direction (X) are flush; edges of the third surface 121 and the fourth surface 122 along the same side of the third direction are flush; edges of the second surface 112 and the fourth surface 122 along the same side of the third direction are flush; wherein the third direction, the first direction, and the second direction are perpendicular to each other.

[0097] For example, when the first battery part 110 and the second battery part 120 are arranged along the Y direction, edges of the first surface 111 and the second surface 112 along the same side of the X direction are flush, and the first battery part 110 has a regular square structure. Edges of the third surface 121 and the fourth surface 122 along the same side of the X direction are flush, and the second battery part 120 also has a regular square structure. In the embodiment of the application, edges of the second surface 112 and the fourth surface 122 along the same side of the X direction are flush. Through the structural arrangement of the first battery part 110 and the second battery part 120, the structure of the battery device 100 is regular, which facilitates the installation and packaging of the battery device 100.

[0098] Optionally, the first battery part 110 includes at least one first battery cell; and / or, the second battery part 120 includes at least one second battery cell. In this way, the energy density of the battery device 100 can be improved.

[0099] For example, the first battery part 110 can include one first battery cell, and the second battery part 120 can include one or more second battery cells. It should be noted that in the embodiment of the application, the first surface 111 of the first battery part 110 and the third surface 121 of the second battery part 120 still have a spacing along the second direction, and the installation area 140 of the battery device 100 is still located between the surface where the first surface 111 is located and the surface where the third surface 121 is located.

[0100] In another embodiment, the first battery part 110 can include a plurality of first battery cells, and the second battery part 120 can include one or more second battery cells. It should be noted that no matter how the plurality of first battery cells are arranged in the first battery part 110 and how the plurality of second battery cells are arranged in the second battery part 120, the first surface 111 of the first battery part 110 and the third surface 121 of the second battery part 120 still have a spacing along the second direction, and the installation area 140 of the battery device 100 is still located between the surface where the first surface 111 is located and the surface where the third surface 121 is located. Through such a setting in the embodiment of the application, the space occupancy ratio of the battery device 100 is reduced, the space utilization rate of the battery device 100 is improved, and the energy density of the battery device 100 is also improved.

[0101] As an optional embodiment, there are multiple first battery cells, and the multiple first battery cells are arranged in an array. In this way, the multiple first battery cells arranged in the array are effectively and reasonably arranged so that the first battery unit 110 can accommodate a relatively large number of first battery cells, thereby increasing the energy density of the battery device 100.

[0102] The plurality of first battery cells may be arranged in a linear array along the Y direction, or in a linear array along the Z direction, or in a linear array along the Z direction. Of course, the plurality of first battery cells may be arranged in a "田"-shaped array. This embodiment of the present application does not make specific requirements for this.

[0103] As an optional embodiment, there are multiple second battery cells, and the multiple second battery cells are arranged in an array. In this way, the multiple second battery cells arranged in the array are effectively and reasonably arranged so that the second battery unit 120 can accommodate a relatively large number of second battery cells, thereby increasing the energy density of the battery device 100.

[0104] The plurality of second battery cells may be arranged in a linear array along the Y direction, or in a linear array along the Z direction, or in a linear array along the Z direction. Of course, the plurality of second battery cells may be arranged in a "田"-shaped array. This embodiment of the present application does not make specific requirements for this.

[0105] It should be noted that the shape of the first battery cell and the shape of the second battery cell in the embodiment of the present application can be the same, for example, the first battery cell and the second battery cell can both be square batteries or round batteries. Alternatively, the first battery cell and the second battery cell can have different shapes, for example, the first battery cell can be square and the second battery cell can be round.

[0106] In the embodiment of the present application, the first battery unit 110 and the second battery unit 120 are respectively electrically connected to the circuit board 130. There are various ways to electrically connect the first battery unit 110 and the circuit board 130. As an optional embodiment, the first battery unit 110 has a first tab 113, and the first battery unit 110 is electrically connected to the circuit board 130 via the first tab 113; the second battery unit 120 has a second tab 124, and the second battery unit 120 is electrically connected to the circuit board 130 via the second tab 124.

[0107] In this way, the first battery unit 110 is directly connected to the circuit board 130 via the first tab 113, and the second circuit board 130 is directly connected to the circuit board 130 via the second tab 124. This reduces the resistance of the electrical connection path, lowers the power loss of the battery device 100, and improves the operating efficiency of the system. Furthermore, this simplifies the installation of the first battery unit 110, the second battery unit 120, and the circuit board 130, reducing the complexity and time cost of assembly and maintenance of the battery device 100.

[0108] It should be noted that the number of the first tabs 113 in the embodiments of the present application can be multiple, wherein a part of the number of the first tabs 113 can serve as the positive electrode of the first battery part 110, and another part of the number of the first tabs 113 can serve as the negative electrode of the first battery part 110. Similarly, for the second battery part 120, the number of the second tabs 124 of the second battery part 120 can be multiple, wherein a part of the number of the second tabs 124 can serve as the positive electrode of the second battery part 120, and another part of the number of the second tabs 124 can serve as the negative electrode of the second battery part 120.

[0109] Optionally, referring to Figure 2 , the first battery part 110 has a fifth surface 114, the fifth surface 114 is adjacent to the first surface 111 and the second surface 112, and the fifth surface 114 is opposite to the second battery part 120; the first tab 113 is arranged on the fifth surface 114. In this way, arranging all the first tabs 113 on the fifth surface 114 facilitates the installation and production of the first battery part 110 itself, and also facilitates the mutual electrical connection between each first battery monomer in the first battery part 110.

[0110] The first tab 113 protrudes from the fifth surface 114 of the first battery part 110 with respect to the first battery part 110. For example, the first tab 113 extends along the Y direction, which causes the first battery part 110 and the second battery part 120 to have a gap along the Y direction, which easily causes the space ratio of the battery device 100 to be difficult to reduce.

[0111] Therefore, the embodiments of the present application provide an optional implementation, the first tab 113 is bent with respect to the fifth surface 114 to form a first tab bending part; along the first direction, the first tab bending part and the fifth surface 114 are at least partially opposite.

[0112] The first tab 113 can extend along the Y direction and protrude from the fifth surface 114 to connect with the circuit board 130 to realize the electrical conduction connection between the circuit board 130 and the first battery part 110. The first tab 113 in the embodiments of the present application is bent with respect to the fifth surface 114. After the first tab 113 is bent, part of the first tab 113 forms a first tab bending part and is opposite to the fifth surface 114. In this way, by bending the first tab 113, the distance between the first battery part 110 and the second battery part 120 is reduced, and the space ratio of the battery device 100 is further reduced, which is beneficial to improving the energy density of the battery device 100.

[0113] After the first tab 113 is bent with respect to the fifth surface 114, the first tab bending part and the fifth surface 114 have an included angle. That is, the first tab bending part is arranged obliquely with respect to the fifth surface 114.

[0114] Alternatively, in an optional embodiment, the first tab bending portion is parallel to the fifth surface 114. In this way, the space between the first battery portion 110 and the second battery portion 120 can be reduced, and the space structure between the first battery portion 110 and the second battery portion 120 is compact, thereby reducing the space ratio of the battery device 100.

[0115] Optionally, referring to Figure 3 The second tab 124 is arranged on the third surface 121. In this way, the first tab 113 and the second tab 124 are located at different positions of the battery device 100, facilitating the circuit board 130 to be electrically connected through the first tab 113 and the first battery portion 110, and the circuit board 130 to be electrically connected through the second tab 124 and the second battery portion 120. At the same time, the problem of internal short circuit of the battery device 100 caused by accidental contact of the second tab 124 and the first tab 113 can be prevented, and the safety and reliability of the electrical connection of the battery device 100 are improved. In addition, the second tab 124 and the first tab 113 are located on different sides of the battery device 100, facilitating heat dissipation of the battery device 100 and preventing heat concentration of the battery device 100.

[0116] The second tab 124 can extend along the Z direction and protrude from the third surface 121 to connect with the circuit board 130, realizing electrical conduction connection between the circuit board 130 and the second battery portion 120. As an optional embodiment, the second tab 124 is bent relative to the third surface 121 to form a second tab bending portion, and the second tab bending portion and the third surface 121 are at least partially opposite in the second direction. In this way, by bending the second tab 124, the space structure ratio of the battery device 100 along the Z direction is reduced, which helps to improve the energy density of the battery device 100.

[0117] After the second tab 124 is bent relative to the third surface 121, the second tab bending portion and the third surface 121 have an included angle. That is, the second tab bending portion is arranged obliquely relative to the third surface 121.

[0118] Alternatively, in an optional embodiment, the second tab bending portion is parallel to the third surface 121. In this way, the structure size of the second battery portion 120 along the Z direction is further reduced, so that the structure of the second battery portion 120 is compact, and the space ratio of the battery device 100 is further reduced.

[0119] As an optional implementation, the extension length of the circuit board 130 in the first direction is less than or equal to the extension length of the first battery part 110; and / or, the end of the circuit board 130 away from the mounting area 140 is flush with the third surface 121 of the second battery part 120 in the second direction; and / or, the extension length of the circuit board 130 in the third direction is less than or equal to the extension length of the first battery part 110. In this way, by configuring the circuit board 130, the first battery part 110 and the second battery part 120, the space occupancy of the circuit board 130 and the overall space occupancy of the battery device 100 are reduced, which helps to improve the energy density of the battery device 100.

[0120] As an optional implementation, the battery device 100 further comprises a connecting assembly 150; the first tab 113 is adapted to be electrically connected by connecting the connecting assembly 150 and the circuit board 130; and / or, the second tab 124 is adapted to be electrically connected by connecting the connecting assembly 150 and the circuit board 130. In this way, by using the connecting assembly 150 to connect the circuit board 130 and the first battery part 110 and the second battery part 120, the assembly process of the battery device 100 becomes more convenient and fast. In addition, when maintaining and replacing the assembly, the circuit can also be disconnected and reconnected more easily.

[0121] For example, the connecting assembly 150 can include a copper bar, an aluminum bar or a wire, etc., and the embodiments of the present application do not make specific limitations thereto.

[0122] Optionally, in combination with Figures 1-6 The connecting assembly 150 includes a first connecting piece 151, and the first tab 113 is adapted to be electrically connected by connecting the first connecting piece 151 and the circuit board 130. In this way, by providing the first connecting piece 151, the electrical connection between the first tab 113 and the circuit board 130 is realized, which facilitates the installation and maintenance between the first battery part 110 and the circuit board 130.

[0123] Optionally, the connecting assembly 150 includes a second connecting piece 152, and the second tab 124 is adapted to be electrically connected by connecting the second connecting piece 152 and the circuit board 130. In this way, by providing the second connecting piece 152, the electrical connection between the second tab 124 and the circuit board 130 is realized, which facilitates the installation and maintenance between the second battery part 120 and the circuit board 130.

[0124] It should be noted that when the first tab 113 is electrically connected to the circuit board 130 through the first connecting piece 151, the second tab 124 can also be electrically connected to the circuit board 130 through the second connecting piece 152.

[0125] In an optional embodiment of the present application, the first connecting member 151 and the second connecting member 152 each comprise a body; the first tab 113 is adapted to be electrically connected by connecting the body of the first connecting member 151 and the circuit board 130; and / or, the second tab 124 is adapted to be electrically connected by connecting the body of the second connecting member 152 and the circuit board 130.

[0126] For the convenience of those skilled in the art to understand the embodiments of the present application, the body of the first connecting member 151 is defined as the first body 1511, and the body of the second connecting member 152 is defined as the second body 1521.

[0127] It can be understood that the first tab 113 can be connected and electrically conducted with the circuit board 130 through the first body 1511, and when the first tab 113 is multiple, the first tabs 113 with the same polarity can be connected and electrically conducted with the circuit board 130 through the same first body 1511. In this way, the connection between the components of the battery device 100 is simple, and at the same time, the number of the first body 1511 can be reduced, further reducing the space ratio of the battery device 100, thereby helping to improve the energy density of the battery device 100.

[0128] It should be noted that the second tab 124 can be connected and electrically conducted with the circuit board 130 through the second body 1521, and when the second tab 124 is multiple, the second tabs 124 with the same polarity can be connected and electrically conducted with the circuit board 130 through the same second body 1521. In this way, the connection between the components of the battery device 100 is simple, and at the same time, the number of the second body 1521 can be reduced, further reducing the space ratio of the battery device 100, thereby helping to improve the energy density of the battery device 100.

[0129] Optionally, the first connecting member 151 and the second connecting member 152 each comprise a connecting portion; in the first connecting member 151, the connecting portion and the body are connected and electrically conducted; and / or, in the second connecting member 152, the connecting portion and the body are connected and electrically conducted; the first tab 113 is electrically connected with the connecting portion of the first connecting member 151; and / or, the second tab 124 is electrically connected with the connecting portion of the second connecting member 152.

[0130] For the convenience of those skilled in the art to understand the embodiments of the present application, the connecting portion of the first connecting member 151 is defined as the first connecting portion 1512, and the connecting portion of the second connecting member 152 is defined as the second connecting portion 1522.

[0131] In combination Figures 1-6The first connecting part 1512 is connected with and electrically connected with the first body 1511, the first tab 113 is connected with and electrically connected with the first connecting part 1512, and the circuit board 130 can be connected with the first body 1511, so that the first battery part 110 and the circuit board 130 are connected and electrically connected through the connection of the first tab 113 and the first connecting part 151.

[0132] The second connecting part 1522 is connected with and electrically connected with the second body 1521, the second tab 124 is connected with and electrically connected with the second connecting part 1522, and the circuit board 130 can be connected with the second body 1521, so that the second battery part and the circuit board 130 are connected and electrically connected through the connection of the second tab 124 and the second connecting part 152.

[0133] In an alternative embodiment, the first connecting part 151 and the second connecting part 152 each have a plurality of corresponding connecting parts; in the first connecting part 151, at least one of the plurality of connecting parts is connected with the first tab 113, and at least another connecting part is connected with the circuit board 130, so that the first battery part 110 is electrically connected with the circuit board 130 through the first connecting part 151; and / or, in the second connecting part 152, at least one of the plurality of connecting parts is connected with the second tab 124, and at least another connecting part is connected with the circuit board 130, so that the second battery part 120 is electrically connected with the circuit board 130 through the second connecting part 152.

[0134] The first connecting part 1512 is two, one of the two first connecting parts 1512 is connected with the first tab 113, and the other is connected with the circuit board 130, so that the first battery part 110 and the circuit board 130 are connected and electrically connected through the first connecting part 151.

[0135] The second connecting part 1522 is two, one of the two second connecting parts 1522 is connected with the second tab 124, and the other is connected with the circuit board 130, so that the second battery part 120 and the circuit board 130 are connected and electrically connected through the second connecting part 152.

[0136] In the embodiment, the extension direction of the body of the first connecting part 151 is perpendicular to the extension direction of the body of the second connecting part 152.

[0137] The extension direction of the first body 1511 is along the Z direction, and the extension direction of the second body 1521 is along the Y direction. The extension direction of the first body 1511 is perpendicular to the extension direction of the second body 1521. In this way, the space can be effectively utilized, especially in limited installation space, so that the layout of the battery device 100 is more compact, thereby reducing the space ratio of the battery device 100.

[0138] When the connecting portions of the first connecting member 151 and the second connecting member 152 are both multiple, as an optional embodiment, in the first connecting member 151, the multiple connecting portions are spaced apart along the extension direction of the body; and / or, in the second connecting member 152, the multiple connecting portions are spaced apart along the extension direction of the body. In this way, the spaced-apart connecting portions can effectively disperse and conduct heat, avoid overheating at a local position inside the battery device 100, and improve the thermal management performance and safety of the battery device 100.

[0139] Referring to Figure 5 , the first connecting portions 1512 are two, and the two first connecting portions 1512 are spaced apart along the extension direction (Z) of the first body 1511. The second connecting portions 1522 are two, and the two second connecting portions 1522 are spaced apart along the extension direction (Y) of the second body 1521.

[0140] For example, in combination with Figure 1 , Figure 4 and Figure 5 , in the first connecting member 151, the connecting portion protrudes from the face of the body close to the first battery portion 110; and / or, in the second connecting member 152, the connecting portion protrudes from the face of the body close to the second battery portion 120. In this way, the protruding design of the connecting portion can shorten the current transmission path, reduce resistance and energy loss, improve the overall working efficiency of the battery device 100, and also make the butt joint between the first battery portion 110 and the circuit board 130 through the first connecting member 151, and the butt joint between the second battery portion 120 and the circuit board 130 through the second connecting member 152 intuitive and easy, simplify the assembly process, and reduce the assembly time and cost.

[0141] Specifically, the first connecting portion 1512 is connected to the side of the first body 1511 along the Y direction towards the first surface 111, and the first connecting portion 1512 extends along the Y direction. In this way, the first connecting portion 1512 is connected and electrically conducted through the part protruding from the first body 1511 and the first tab 113.

[0142] The second connecting portion 1522 is connected to the side of the second body 1521 along the Z direction towards the third surface 121, and the second connecting portion 1522 extends along the Z direction. In this way, the second connecting portion 1522 is connected and electrically conducted through the part protruding from the second body 1521 and the second tab 124.

[0143] In combination with the foregoing embodiments, the first connecting member 151 is located on the first tab 113. Specifically, the first connecting portion 1512 of the first connecting member 151 is located on the first tab bending portion, such that after the first tab 113 is bent relative to the fifth surface 114, the first connecting member 151 is parallel to the fifth surface 114, the spacing between the first battery portion 110 and the second battery portion 120 is reduced, the structure of the battery device 100 is compact, the space ratio of the battery device 100 is easily reduced, and the energy density of the battery device 100 is further improved.

[0144] Optionally, the second battery portion 120 has a sixth surface 123, the sixth surface 123 is adjacent to the third surface 121 and the fourth surface 122, and the sixth surface 123 is opposite to the first battery portion 110; the sixth surface 123 covers the orthogonal projection of the first connecting member 151 on the sixth surface 123.

[0145] It can be understood that in the embodiments of the present application, the extension length of the first connecting member 151 in the Z direction is less than or equal to the extension length of the sixth surface 123 in the direction, and the extension length of the first connecting member 151 in the X direction is less than or equal to the extension length of the sixth surface 123 in the direction, so that the orthogonal projection of the first connecting member 151 on the sixth surface 123 can be covered by the sixth surface 123. In this way, by arranging the structure of the first connecting member 151, the structure of the battery device 100 is regular and compact, the space ratio of the battery device 100 is reduced, and the energy density of the battery device 100 is further improved.

[0146] Optionally, the second connecting member 152 is located on the second tab 124. Specifically, the second connecting portion 1522 of the second connecting member 152 is located on the second tab bending portion, such that after the second tab 124 is bent relative to the third surface 121, the second connecting member 152 is parallel to the third surface 121, the space ratio of the second battery portion 120 in the Z direction is reduced, and the overall structure of the battery device 100 is compact, thereby reducing the space ratio of the battery device 100 and further improving the energy density of the battery device 100.

[0147] In the embodiments of the present application, the second connecting member 152 extends in the Y direction to connect the second tab 124 of the second battery portion 120 and the circuit board 130, and the second connecting member 152 can extend to the mounting area 140. Then, the third surface 121 of the second battery portion 120 covers the orthogonal projection of the second connecting member 152 on the surface where the third surface 121 of the second battery portion 120 is located; and the first surface 111 of the first battery portion 110 covers the orthogonal projection of the second connecting member 152 on the surface where the first surface 111 of the first battery portion 110 is located. In this way, by arranging the structure of the second connecting member 152, the structure of the battery device 100 is regular and compact, the space ratio of the battery device 100 is reduced, and the energy density of the battery device 100 is further improved.

[0148] The battery device 100 provided by the application comprises a first battery part 110, a second battery part 120 and a circuit board 130; the first battery part 110 and the second battery part 120 are arranged along a first direction; the first battery part 110 has a first surface 111 and a second surface 112 arranged oppositely, and the second battery part 120 has a third surface 121 and a fourth surface 122 arranged oppositely; the first surface 111 and the third surface 121 are towards the same side of the battery device 100; the battery device 100 has a mounting area 140; along a second direction, the mounting area 140 is located between the plane where the first surface 111 is located and the plane where the third surface 121 is located; the circuit board 130 is at least partially located in the mounting area 140; the circuit board 130 is electrically connected to the first battery part 110 and the second battery part 120 respectively; the first direction and the second direction are perpendicular. Through such a structure, the space proportion of the circuit board 130 and the space proportion of the battery device 100 are reduced, and the energy density of the battery device 100 is improved.

[0149] In addition, the application can also provide a power consumption device comprising the battery device 100 in any of the foregoing embodiments.

[0150] The power consumption device provided by the application can improve the energy density due to comprising the battery device 100 in any of the foregoing embodiments.

[0151] For example, the power consumption device in the embodiments of the application can be a vehicle, such as a hybrid car or an electric car.

[0152] It should be noted that the terms "one embodiment", "an embodiment", "example embodiment", "some embodiments" and the like as mentioned in the specification do not necessarily refer to the same embodiment, but instead can refer to different embodiments. Furthermore, these terms are not necessarily used in the context of claiming or otherwise with respect to the embodiments.

[0153] In general, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. For example, the use of the terms "one" or "said" can be used to describe any feature, structure, or characteristic in the singular in a given instance, but the use of the terms "one" or "said" can also be used in the context of describing features, structures, or characteristics in the plural even though the particular features, structures, or characteristics are described in the singular. Similarly, the use of the term "a" or "an" can be used to describe any feature, structure, or characteristic in the singular in a given instance, but the use of the term "a" or "an" can also be used in the context of describing features, structures, or characteristics in the plural even though the particular features, structures, or characteristics are described in the singular.

[0154] It should be readily understood that "on," "over," and "above" in the present application are to be interpreted in the broadest context, such that "on" means not only "directly on" but also includes the meaning of "on" with intervening features or layers therebetween, and "over" or "above" includes not only the meaning of "over" or "above" but also the meaning of "over" or "above" with no intervening features or layers therebetween (i.e., directly on).

[0155] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90° or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0156] Finally, it should be noted that the above-described embodiments are merely intended for describing and illustrating, not limiting, the technical solutions of the present application; even though the present application has been described in detail with reference to the above-described embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the above-described embodiments, or equivalently replace some or all of the technical features thereof; and such modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery device (100), characterized in that: include: A first battery unit (110), a second battery unit (120), and a circuit board (130); The first battery unit (110) and the second battery unit (120) are arranged along a first direction; the first battery unit (110) has a first surface (111) and a second surface (112) that are arranged opposite to each other, and the second battery unit (120) has a third surface (121) and a fourth surface (122) that are arranged opposite to each other; the first surface (111) and the third surface (121) face the same side of the battery device (100); The battery device (100) has an installation area (140); along the second direction, the installation area (140) is located between the plane where the first surface (111) is located and the plane where the third surface (121) is located; The circuit board (130) is at least partially located in the installation area (140); the circuit board (130) is electrically connected to the first battery unit (110) and the second battery unit (120); The first direction and the second direction are perpendicular.

2. The battery device (100) according to claim 1, characterized in that Along the second direction, the second surface (112) and the fourth surface (122) are flush with each other.

3. The battery device (100) according to claim 1, characterized in that The edges of the first surface (111) and the second surface (112) on the same side along the third direction are flush; The third surface (121) and the fourth surface (122) are flush with each other along the same side of the third direction; The second surface (112) and the fourth surface (122) are flush with each other along the same side of the third direction; The third direction, the first direction, and the second direction are perpendicular to each other.

4. The battery device (100) according to any one of claims 1 to 3, characterized in that: The first battery unit (110) includes at least one first battery cell; And / or, the second battery unit (120) includes at least one second battery cell.

5. The battery device (100) according to claim 4, characterized in that There are a plurality of first battery cells, and the plurality of first battery cells are arranged in an array.

6. The battery device (100) according to claim 4, characterized in that There are a plurality of second battery cells, and the plurality of second battery cells are arranged in an array.

7. The battery device (100) according to any one of claims 1 to 3, characterized in that: Along the first direction, the extension length of the circuit board (130) is less than or equal to the extension length of the first battery unit (110); and / or, along the second direction, the end of the circuit board (130) facing away from the mounting area (140) is flush with the third surface (121) of the second battery portion (120); And / or, along the third direction, the extension length of the circuit board (130) is less than or equal to the extension length of the first battery unit (110).

8. The battery device (100) according to claim 1, characterized in that The first battery unit (110) has a first tab (113), and the first battery unit (110) is electrically connected to the circuit board (130) via the first tab (113); The second battery unit (120) has a second tab (124), and the second battery unit (120) is electrically connected to the circuit board (130) via the second tab (124).

9. The battery device (100) according to claim 8, characterized in that The first battery portion (110) has a fifth surface (114), the fifth surface (114) is adjacent to the first surface (111) and the second surface (112), and the fifth surface (114) is opposite to the second battery portion (120); The first electrode tab (113) is arranged on the fifth surface (114).

10. The battery device (100) according to claim 9, characterized in that The first tab (113) is bent relative to the fifth surface (114) to form a first tab bent portion; Along the first direction, the first tab bent portion and the fifth surface (114) are at least partially opposite to each other.

11. The battery device (100) according to claim 10, characterized in that The first tab bent portion and the fifth surface (114) form an included angle.

12. The battery device (100) according to claim 10, characterized in that The first tab bent portion is parallel to the fifth surface (114).

13. The battery device (100) according to claim 8, characterized in that The second electrode tab (124) is arranged on the third surface (121).

14. The battery device (100) according to claim 13, characterized in that The second tab (124) is bent relative to the third surface (121) to form a second tab bent portion; Along the second direction, the second tab bent portion and the third surface (121) are at least partially opposite to each other.

15. The battery device (100) according to claim 14, characterized in that The second tab bent portion and the third surface (121) have an included angle.

16. The battery device (100) according to claim 14, characterized in that The second tab bent portion is parallel to the third surface (121).

17. The battery device (100) according to claim 8, characterized in that It also includes a connection component (150); the first tab (113) is suitable for being electrically connected to the circuit board (130) by connecting the connection component (150); And / or, the second tab (124) is suitable for being electrically connected to the circuit board (130) by connecting the connection component (150).

18. The battery device (100) according to claim 17, characterized in that The connection assembly (150) includes a first connection member (151), and the first tab (113) is suitable for being electrically connected to the circuit board (130) by connecting the first connection member (151); And / or, the connection assembly (150) includes a second connection member (152), and the second tab (124) is suitable for being electrically connected to the circuit board (130) by connecting the second connection member (152).

19. The battery device (100) according to claim 18, characterized in that The first connector (151) and the second connector (152) both include a body; the first tab (113) is adapted to be electrically connected to the circuit board (130) by connecting the body of the first connector (151); And / or, the second tab (124) is suitable for being electrically connected to the body of the second connector (152) and the circuit board (130).

20. The battery device (100) according to claim 19, characterized in that The first connecting member (151) and the second connecting member (152) both include a connecting portion; In the first connecting member (151), the connecting portion and the body are connected and electrically conductive; and / or, in the second connecting member (152), the connecting portion and the body are connected and electrically conductive; The first tab (113) and the connecting portion of the first connecting member (151) are electrically connected; And / or, the second electrode tab (124) and the connecting portion of the second connecting member (152) are electrically connected.

21. The battery device (100) according to claim 20, characterized in that The first connecting member (151) and the second connecting member (152) each correspond to a plurality of connecting portions; In the first connecting member (151), at least one of the plurality of connecting portions is connected to the first tab (113), and at least another connecting portion is connected to the circuit board (130), so that the first battery unit (110) is electrically connected to the circuit board (130) through the first connecting member (151); And / or, in the second connector (152), at least one of the plurality of connecting portions is connected to the second tab (124), and at least another one is connected to the circuit board (130), so that the second battery portion (120) is electrically connected to the circuit board (130) through the second connector (152).

22. The battery device (100) according to claim 21, characterized in that The extension direction of the body of the first connecting member (151) is perpendicular to the extension direction of the body of the second connecting member (152).

23. The battery device (100) according to claim 21, characterized in that In the first connecting member (151), a plurality of connecting portions are spaced apart and distributed along the extension direction of the body; And / or, in the second connecting member (152), a plurality of the connecting portions are distributed at intervals along the extension direction of the body.

24. The battery device (100) according to claim 20, characterized in that In the first connecting member (151), the connecting portion protrudes from a surface of the body close to the first battery portion (110); And / or, in the second connecting member (152), the connecting portion protrudes from a surface of the body close to the second battery portion (120).

25. The battery device (100) according to claim 18, characterized in that The first connecting member (151) is located on the first electrode tab (113).

26. The battery device (100) according to claim 25, characterized in that The second battery unit (120) has a sixth surface (123), the sixth surface (123) is adjacent to the third surface (121) and the fourth surface (122), and the sixth surface (123) is opposite to the first battery unit (110); The sixth surface (123) covers the orthographic projection of the first connecting member (151) on the sixth surface (123).

27. The battery device (100) according to claim 18, characterized in that The second connecting member (152) is located on the second pole tab (124).

28. The battery device (100) according to claim 27, characterized in that The third surface (121) of the second battery unit (120) covers the orthographic projection of the second connecting member (152) on the surface where the third surface (121) of the second battery unit (120) is located; The first surface (111) of the first battery part (110) covers the orthographic projection of the second connecting member (152) on the surface where the first surface (111) of the first battery part (110) is located.

29. An electrical device, characterized in that: A battery device (100) comprising any one of claims 1-28.

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