Battery shell, battery and electric equipment

Abstract

The utility model provides a battery shell, a battery and electric equipment, and relates to the technical field of batteries, the battery shell comprises a plate body with a first opening, the plate body is used for being connected with a shell of the battery, an electric lead-out piece is arranged on one side, opposite to the shell, of the plate body, and the electric lead-out piece is provided with a second opening corresponding to the first opening; the electric lead-out piece is used for being electrically connected with a tab of a battery penetrating through the first opening and the second opening, the insulating piece comprises a first insulating part, the first insulating part is arranged between the plate body and the electric lead-out piece, the insulating piece is provided with a third opening communicating the first opening and the second opening, and the first insulating part is used for insulating the plate body and the electric lead-out piece. The battery shell provided by the utility model can reduce the risk of short circuit in the battery and improve the yield of the battery.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery casing, a battery, and an electrical device. Background Art

[0002] Batteries are commonly used power supply devices in electrical equipment. For example, they can be used in electric vehicles as a power source for electric vehicles.

[0003] The battery mainly includes a shell, a pole core and a cover plate. The shell has an opening, the pole core is arranged in the shell, the lead-out piece in the cover plate is welded to the pole ear on the pole core, and then the cover plate seals the opening, and the cover plate and the shell are sealed by laser welding.

[0004] However, the welding slag generated during the welding process of the lead-out tab and the tab in the above-mentioned related technology will fall into the electrode core, which may easily cause an internal short circuit in the battery and reduce the yield of the battery. Utility Model Content

[0005] The embodiments of the present application provide a battery casing, a battery, and an electrical device, which are used to solve the technical problem in the related art that the welding slag generated during the welding process of the lead-out tab and the tab will fall into the pole core, thereby easily causing an internal short circuit in the battery and reducing the yield of the battery.

[0006] In order to achieve the above objectives, the embodiments of the present application provide the following technical solutions:

[0007] A first aspect of an embodiment of the present application provides a battery housing, comprising:

[0008] case;

[0009] A plate body having a first opening, wherein the plate body is covered on the housing;

[0010] an electrical lead-out member, disposed on a side of the plate body facing away from the housing, the electrical lead-out member having a second opening corresponding to the first opening;

[0011] an insulating member comprising a first insulating portion, the first insulating portion being disposed between the plate body and the electrical lead-out member, the first insulating portion having a third opening communicating with the first opening and the second opening, the electrical lead-out member being configured to electrically connect to a tab of a battery passing through the first opening, the third opening, and the second opening;

[0012] The first insulating portion is used to insulate the board body from the electrical lead.

[0013] An embodiment of the present application provides a battery casing, a battery and an electrical device. The battery casing arranges an electrical lead-out piece on the side of the plate body facing away from the shell, so that the battery's pole tab passes through the first opening on the plate body, the third opening on the first insulating portion and the second opening on the electrical lead-out piece in sequence, and the pole tab is connected to the electrical lead-out piece, so that the pole tab and the electrical lead-out piece are electrically connected outside the shell, thereby reducing the probability of welding slag generated during the welding process of the electrical lead-out piece and the pole tab entering the interior of the pole core in the shell, reducing the risk of internal short circuit in the battery, and improving the yield of the battery.

[0014] Furthermore, since the tabs do not need to be bent multiple times before being welded to the lead-out pieces, the length of the current collector is shortened, and the assembly process between the tabs and the electrical lead-out pieces is simplified, thereby improving the assembly efficiency of the battery housing.

[0015] In addition, in the thickness direction of the plate body, by arranging the first insulating portion of the insulating member between the plate body and the electrical lead, electrical short circuit between the plate body and the electrical lead can be avoided, thereby improving the safety of the battery.

[0016] Based on the above technical solution, this application can also be improved as follows.

[0017] In a possible implementation manner, in the thickness direction of the plate body, the orthographic projections of the first opening, the second opening, and the third opening at least partially overlap.

[0018] In this way, by making the orthographic projections of the first opening, the second opening and the third opening at least partially overlap in the thickness direction of the plate body, it is easy to guide the tab through the first opening, the second opening and the third opening in the thickness direction of the plate body to electrically connect to the electrical lead.

[0019] In a possible implementation, in the width direction of the electrical lead-out member, the second opening is located at the center line of the electrical lead-out member in the width direction;

[0020] Alternatively, the second opening is arranged close to one side of the electrical lead-out member in the width direction.

[0021] In this way, when the part of the pole ear passing through the second opening is connected to the surface of the electrical lead-out part facing away from the shell, by arranging the second opening close to one side of the electrical lead-out part in the width direction, the contact area between the pole ear and the surface of the electrical lead-out part facing away from the shell can be increased, thereby increasing the connection stability between the pole ear and the electrical lead-out part.

[0022] In a possible implementation, the battery housing further includes a terminal;

[0023] The terminal is arranged on a side of the electrical lead-out component facing away from the insulating component and is electrically connected to the electrical lead-out component.

[0024] In this way, by arranging the electric lead-out piece on the side of the plate body facing away from the shell, and directly connecting the terminal to the electric lead-out piece on the side of the electric lead-out piece facing away from the shell, not only can the electrical connection between the terminal and the electric lead-out piece be achieved, but the first insulating part of the insulating piece can also insulate not only the plate body and the electric lead-out piece, but also the terminal and the plate body, thereby reducing the number of parts of the battery casing, simplifying the structure of the battery casing and reducing the manufacturing cost of the battery casing and the battery.

[0025] In a possible implementation, the insulating member further includes a second insulating portion;

[0026] The second insulating portion covers an inner edge of the first opening, and the second insulating portion has a fourth opening communicating with the third opening and the second opening;

[0027] The second insulating portion is used to insulate the electrode tab passing through the fourth opening from the plate body.

[0028] In this way, by making the second insulating portion of the insulating member include the inner edge of the second opening, the fourth opening is located on the inner side of the first opening, and the pole tab is connected to the electrical lead-out member through the fourth opening, the third opening and the second opening, the second insulating portion can insulate the portion of the pole tab located in the fourth opening from the inner wall of the first opening, thereby achieving insulation between the pole tab and the plate body, avoiding a short circuit between the battery casing and the pole tab, and improving the safety of battery use.

[0029] In a possible implementation, the insulating member further includes a third insulating portion:

[0030] The third insulating portion is provided on a side of the plate body facing the housing, and the third insulating portion has a fifth opening communicating with the fourth opening;

[0031] The third insulating portion is used to insulate the surface of the plate body facing the housing from the tab.

[0032] In this way, by arranging the third insulating part on the side of the plate body facing the shell, the surface of the plate body facing the shell is insulated from the tabs between the plate body and the shell, thereby further improving the insulation effect between the plate body and the tabs, and improving the practicality of the battery shell and the safety of battery use.

[0033] In a possible implementation, the board body, the electrical lead, and the insulating member are an integral structure formed by injection molding.

[0034] In this way, by injection molding the plate body, the electrical lead-out member, and the insulating member into an integrated structure, the assembly efficiency of the battery housing can be improved, thereby improving the assembly efficiency of the battery.

[0035] In a possible implementation, the insulating member is a plastic insulating member, a rubber insulating member, or a ceramic insulating member.

[0036] In this way, by setting the insulating member as a plastic insulating member, a rubber insulating member or a ceramic insulating member, the structure of the insulating member can be simplified, the manufacturing cost of the insulating member can be reduced, and the manufacturing cost of the battery housing can be reduced.

[0037] In a possible implementation, the electrical lead has a groove on a side facing away from the plate body, the bottom of the groove is connected to the second opening, and the bottom of the groove is used to connect to the portion of the tab passing through the second opening.

[0038] In this way, by providing a groove on the side of the electrical lead-out member facing away from the plate body, and electrically connecting a portion of the tab extending out of the second opening to the bottom of the groove, the height of the battery casing in the thickness direction can be reduced, thereby reducing the space occupancy of the battery casing in the thickness direction.

[0039] Furthermore, by electrically connecting a portion of the tab extending out of the second opening to the bottom of the groove, the collision, extrusion and friction of other structures on the connection between the tab and the electrical lead can be reduced, thereby improving the connection stability between the electrical lead and the tab.

[0040] In a possible implementation, the plate body and the shell are an integrated structure.

[0041] In this way, the assembly process of the battery casing can be simplified and the assembly efficiency can be improved.

[0042] A second aspect of the present invention provides a battery comprising

[0043] The battery cell and the battery casing as described above;

[0044] The pole core is arranged in the shell of the battery housing, and the pole core has a pole ear on the side facing the installation port;

[0045] The tab passes through the first opening of the plate body of the battery case, the third opening of the insulating member, and the second opening of the electrical lead-out member, and is electrically connected to the electrical lead-out member.

[0046] An embodiment of the present application provides a battery, which, by using the above-mentioned battery casing and electrically connecting the electrical lead of the battery casing to the tab on the pole core, can prevent welding slag from falling into the pole core, reduce the probability of short circuit in the pole core, and improve the safety and yield of the battery.

[0047] In a possible implementation, the tab includes:

[0048] an extension section, one end of which is connected to the pole core, and the other end of which is passed through the first opening, the second opening, and the third opening;

[0049] a connecting section connected to an end of the extending section facing away from the pole core and provided on a surface of the electrical lead-out member facing away from the pole core;

[0050] In this way, the number of times the tab is bent can be reduced, the assembly time between the tab and the electrical lead can be shortened, and the space occupied by the tab in the housing can be reduced, thereby improving the assembly efficiency of the battery.

[0051] In a possible implementation, an extending direction of the extending section is perpendicular to an extending direction of the connecting section.

[0052] A third aspect of an embodiment of the present application provides an electrical device, which includes an electrical device and the battery as described above, wherein the battery is used to provide electrical energy to the electrical device.

[0053] An embodiment of the present application provides an electrical device, which uses the above-mentioned battery to provide electrical energy to the electrical device, thereby reducing the use risk of the power supply process and improving the safety of the electrical device. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0055] Figure 1 A schematic structural diagram of a battery housing provided in an embodiment of the present application;

[0056] Figure 2 An exploded view of the front of the plate body, electrical lead-out member, and insulating member of the battery housing provided in an embodiment of the present application;

[0057] Figure 3 An exploded view of the back of the plate body, electrical lead-out member, and insulating member of the battery housing provided in an embodiment of the present application;

[0058] Figure 4 A top view of the plate body, electrical lead-out member, and insulating member of the battery housing provided in an embodiment of the present application;

[0059] Figure 5 A cross-sectional view of the plate body, electrical lead-out member, and insulating member of the battery housing provided in an embodiment of the present application;

[0060] Figure 6A cross-sectional view of a battery provided in an embodiment of the present application.

[0061] Description of reference numerals:

[0062] 10-battery shell; 20-shell; 30-pole core;

[0063] 21-installation port; 31-ear; 31a-extension section; 31b-connection section;

[0064] 100-board body;

[0065] 110-first opening; 120-limiting groove;

[0066] 200-electrical lead;

[0067] 210 - second opening; 220 - groove;

[0068] 300-insulation parts;

[0069] 310-first insulating portion; 320-second insulating portion; 330-third insulating portion:

[0070] 311 - third opening; 321 - fourth opening; 331 - fifth opening;

[0071] 400-terminal. DETAILED DESCRIPTION

[0072] As described in the background art, the welding slag generated during the welding process of the lead-out tab and the tab in the related art will fall into the electrode core, which can easily cause an internal short circuit in the battery and reduce the battery yield.

[0073] The reason for this problem is that the cover plate in the related technology includes a main body, a lead-out piece and a terminal, two insulating parts. The lead-out piece is arranged on the side of the main body facing the battery shell, and the lead-out piece is welded to the inside of the shell and the pole ear on the pole core. In this way, the welding slag generated in the process of welding the pole ear and the lead-out piece will fall into the inside of the pole core in the shell, which will cause a short circuit inside the pole core, thereby reducing the yield of the battery.

[0074] Furthermore, because the lead-out piece in the related art is disposed on the side of the battery body facing the housing, an insulating member is required between the battery body and the lead-out piece to insulate the battery body from the lead-out piece. Furthermore, because the terminal is disposed on the side of the battery body facing away from the housing, the terminal passes through the battery body and is electrically connected to the lead-out piece, so an insulating member is required between the terminal and the battery body to insulate the terminal from the battery body, thereby increasing the number of structural components of the battery housing.

[0075] In response to the above technical problems, an embodiment of the present application provides a battery casing, a battery and an electrical device. The battery casing arranges the electrical lead-out piece on the side of the plate body facing away from the shell, so that the battery's pole ear passes through the first opening on the plate body, the third opening on the first insulating part and the second opening on the electrical lead-out piece in sequence, and the pole ear is connected to the electrical lead-out piece, so that the pole ear and the electrical lead-out piece are electrically connected outside the shell, thereby reducing the probability of welding slag generated during the welding process of the electrical lead-out piece and the pole ear entering the interior of the pole core in the shell, reducing the risk of internal short circuit in the battery, and improving the yield of the battery.

[0076] Furthermore, since the tabs do not need to be bent multiple times before being welded to the lead-out pieces, the length of the current collector is shortened, and the assembly process between the tabs and the electrical lead-out pieces is simplified, thereby improving the assembly efficiency of the battery housing.

[0077] In addition, in the thickness direction of the plate body, by arranging the first insulating portion of the insulating member between the plate body and the electrical lead, electrical short circuit between the plate body and the electrical lead can be avoided, thereby improving the safety of the battery.

[0078] In order to make the above-mentioned purposes, features and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings 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 ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0079] refer to Figure 1 The present invention provides a battery housing 10. The battery housing 10 may include a housing 20, a board body 100, an electrical lead 200, and an insulating member 300. In some embodiments, the board body 100 may be integrally formed with the housing 20. The housing 20 may further include a mounting opening 21. The board body 100 may be positioned over and seal the mounting opening 21.

[0080] refer to Figure 2 and Figure 3 The plate body 100 has a first opening 110, and the first opening 110 is connected to the plate body 100 in the thickness direction (such as Figure 2 The battery tabs 31 can pass through the first opening 110. The plate body 100 is used to connect to the battery housing 20. The plate body 100 can be a metal cover plate and can be connected to the housing 20 by welding.

[0081] refer to Figure 4 and Figure 5The electrical lead-out member 200 is arranged on the side of the board body 100 facing away from the shell 20. The electrical lead-out member 200 has a second opening 210 corresponding to the first opening 110. The first opening 110 is connected to the second opening 210. The electrical lead-out member 200 is used to electrically connect to the battery tab 31 passing through the first opening 110 and the second opening 210.

[0082] refer to Figure 5 and Figure 6 In some embodiments, the electrical lead 200 can also be a conductive metal member. The tab 31 passes through the first opening 110 and the second opening 210 to reach the surface of the electrical lead 200 facing away from the housing 20. The portion of the tab 31 that passes through the second opening 210 can be connected to the surface of the electrical lead 200 facing away from the housing 20 by welding. In this case, the tab 31 located at the first opening 110, the second opening 210, and the surface of the electrical lead 200 facing away from the housing 20 can be approximately L-shaped. This can increase the connection area between the electrical lead 200 and the tab 31 and improve the connection stability between the electrical lead 200 and the tab 31.

[0083] An embodiment of the present application provides a battery casing 10, a battery and an electrical device. The battery casing 10 sets an electrical lead-out piece 200 on the side of the board body 100 facing away from the shell 20, so that the battery's pole tab 31 passes through the first opening 110 on the board body 100 and the second opening 210 on the electrical lead-out piece 200, and the pole tab 31 is connected to the electrical lead-out piece 200, so that the pole tab 31 and the electrical lead-out piece 200 are electrically connected outside the shell 20, thereby reducing the probability of welding slag generated during the welding process of the electrical lead-out piece 200 and the pole tab 31 entering the pole core 30 in the shell 20, reducing the risk of internal short circuit in the battery, and improving the yield of the battery.

[0084] Furthermore, since the tab 31 does not need to be bent multiple times before being welded to the lead-out member, the length of the current collector is shortened, and the assembly process between the tab 31 and the electrical lead-out member 200 is simplified, thereby improving the assembly efficiency of the battery housing 10.

[0085] refer to Figure 2 and Figure 5 The insulating member 300 may include a first insulating portion 310 disposed between the board body 100 and the electrical lead 200. The insulating member 300 has a third opening 311 communicating with the first opening 110 and the second opening 210. The tab 31 can pass through the first opening 110, the third opening 311, and the second opening 210 to reach the surface of the electrical lead 200 facing away from the housing 20. The first insulating portion 310 is used to insulate the board body 100 from the electrical lead 200.

[0086] In this way, in the thickness direction of the board body 100, by arranging the first insulating cloth of the insulating member 300 between the board body 100 and the electrical lead 200, an electrical short circuit between the board body 100 and the electrical lead 200 can be avoided, thereby improving the safety of the battery.

[0087] In some embodiments, the first opening 110, the second opening 210 and the third opening 311 are all long strip openings, and the first opening 110, the second opening 210 and the third opening 311 are all along the length direction of the plate body 100 (eg Figure 2 Y direction).

[0088] In this way, by setting the first opening 110 , the second opening 210 and the third opening 311 as long strip openings, the foil-shaped tab 31 can be easily passed through, which facilitates the assembly and welding process of the battery housing 10 and the tab 31 .

[0089] refer to Figure 2 and Figure 5 In some embodiments, the board body 100 has a limiting groove 120 on the side facing away from the electrical lead-out member 200, and the bottom of the limiting groove 120 is connected to the first opening 110. The electrical lead-out member 200 can be arranged in the limiting groove 120 to limit the displacement of the electrical lead-out member 200 in the horizontal direction perpendicular to the thickness direction of the board body 100, thereby improving the connection stability between the electrical lead-out member 200 and the board body 100.

[0090] The first insulating portion 310 of the insulating member 300 is arranged in the limiting groove 120, and a portion of the first insulating portion 310 is arranged at the bottom of the limiting groove 120, so as to insulate the portion of the plate body 100 corresponding to the bottom of the limiting groove 120 from the electrical lead-out member 200. A portion of the first insulating portion 310 is also arranged on the groove wall of the limiting groove 120, which can insulate the portion of the plate body 100 corresponding to the inner side wall of the limiting groove 120 from the electrical lead-out member 200.

[0091] refer to Figure 5 In some embodiments, in the thickness direction of the plate body 100 (eg Figure 5 In the X direction), the orthographic projections of the first opening 110, the second opening 210 and the third opening 311 at least partially overlap, so that the tab can pass through the first opening 110, the second opening 210 and the third opening 311.

[0092] In other embodiments, in the thickness direction of the plate body 100 (eg Figure 5In the X direction), the orthographic projections of the first opening 110, the second opening 210 and the third opening 311 can almost completely overlap, so that the joints of the first opening 110, the second opening 210 and the third opening 311 can be relatively flat, and the tab 31 will not be blocked by the protrusions at the joints when passing through the first opening 110, the second opening 210 and the third opening 311.

[0093] In this way, by making the orthographic projections of the first opening 110, the second opening 210 and the third opening 311 at least partially overlap in the thickness direction of the plate body 100, it is possible to facilitate guiding the tab 31 through the first opening 110, the second opening 210 and the third opening 311 in the thickness direction of the plate body 100 to electrically connect the electrical lead 200.

[0094] refer to Figure 5 In some embodiments, in the width direction of the electrical lead 200 (eg Figure 5 The second opening 210 is located at the center line of the width direction of the electrical outlet 200. It should be noted that the center line M is only used to define the relative position of the second opening 210 on the electrical outlet 200 and is not a physical structure.

[0095] In other embodiments, the first opening 110 deviates from the center line of the width direction of the electrical lead 200 (eg Figure 2 Alternatively, the first opening 110 can be arranged close to one side of the electrical lead-out member 200 in the width direction.

[0096] In this way, when the part of the pole tab 31 passing through the second opening 210 is connected to the surface of the electrical lead-out component 200 facing away from the shell 20, by arranging the second opening 210 close to one side of the electrical lead-out component 200 in the width direction, the contact area between the pole tab 31 and the surface of the electrical lead-out component 200 facing away from the shell 20 can be increased, thereby increasing the connection stability between the pole tab 31 and the electrical lead-out component 200.

[0097] In some embodiments, if the thickness of the battery is greater than 18 mm, the width of the battery housing 10 may also be greater than 18 mm, and the width of the electrical lead-out member 200 may also be greater than 18 mm. At this time, the second opening 210 can be set in the middle of the width direction of the electrical lead-out member 200, and can ensure that there is a larger connection area between the tab 31 and the surface of the electrical lead-out member 200 facing away from the shell 20.

[0098] If the thickness of the battery is less than 18 mm, the width of the battery casing 10 may also be less than 18 mm, and the width of the electrical lead 200 may also be less than 18 mm, which will cause the width of the electrical lead 200 to be narrower. If the first opening 110 is set in the middle, it may cause the connection area between the tab 31 and the surface of the electrical lead 200 facing away from the shell 20 to be smaller, affecting the connection stability between the tab 31 and the electrical lead 200.

[0099] refer to Figure 2 and Figure 5 In some embodiments, the electrical lead 200 has a groove 220 on the side facing away from the board body 100 , and the bottom of the groove 220 is connected to the second opening 210 , and the bottom of the groove 220 is used to connect to the portion of the tab 31 passing through the second opening 210 .

[0100] In this way, by providing a groove 220 on the side of the electrical lead-out member 200 facing away from the plate body 100, and electrically connecting a portion of the tab 31 extending through the second opening 210 to the bottom of the groove 220, the height of the battery housing 10 in the thickness direction can be reduced, thereby reducing the space occupancy of the battery housing 10 in the thickness direction.

[0101] Furthermore, by electrically connecting a portion of the tab 31 passing through the second opening 210 and the bottom of the groove 220, the collision, extrusion and friction of other structures on the connection between the tab 31 and the electrical lead 200 can be reduced, thereby improving the connection stability between the electrical lead 200 and the tab 31.

[0102] refer to Figure 2 and Figure 5 In some embodiments, the insulating member 300 may further include a second insulating portion 320, which may be connected to the first insulating portion 310. The second insulating portion 320 and the first insulating portion 310 may be an integral structure. In some examples, the second insulating portion 320 and the first insulating portion 310 may be separate and connected.

[0103] The second insulating portion 320 covers the inner edge of the first opening 110 and has a fourth opening 321 that communicates with the third opening 311 and the second opening 210. The fourth opening 321 is located within the first opening 110 and can be coaxial with the first opening 110. The second insulating portion 320 is used to insulate the tab 31 passing through the fourth opening 321 from the board body 100.

[0104] In this way, the second insulating portion 320 of the insulating member 300 can cover the inner edge of the second opening 210, the fourth opening 321 is located on the inner side of the first opening 110, and the pole tab 31 is connected to the electrical lead-out member 200 through the fourth opening 321, the third opening 311 and the second opening 210. The second insulating portion 320 can insulate the portion of the pole tab 31 located in the fourth opening 321 from the inner wall of the first opening 110, thereby achieving insulation between the pole tab 31 and the board body 100, avoiding a short circuit between the battery casing 10 and the pole tab 31, and improving the safety of the battery.

[0105] refer to Figure 2 and Figure 5 In some embodiments, the insulating member 300 may further include a third insulating portion 330, which may be connected to the second insulating portion 320, so that the third insulating portion 330 is connected to the first insulating portion 310 through the second insulating portion 320. Alternatively, the third insulating portion 330, the second insulating portion 320, and the first insulating portion 310 may be an integrated structure.

[0106] The third insulating portion 330 is disposed on the side of the board body 100 facing the housing 20 . The third insulating portion 330 has a fifth opening 331 communicating with the fourth opening 321 . The third insulating portion 330 is used to insulate the surface of the board body 100 facing the housing 20 from the tab 31 .

[0107] In this way, by arranging the third insulating portion 330 on the side of the board body 100 facing the shell 20, the surface of the board body 100 facing the shell 20 is insulated from the tab 31 located between the board body 100 and the shell 20, thereby further improving the insulation effect between the board body 100 and the tab 31, and improving the practicality of the battery casing 10 and the safety of the battery.

[0108] In some embodiments, in the thickness direction of the plate body 100 (eg Figure 5 In the X direction in FIG, the orthographic projections of the third opening 311, the fourth opening 321 and the fifth opening 331 can overlap.

[0109] refer to Figure 5 In some embodiments, the board body 100, the electrical lead 200 and the insulating member 300 are an integral structure formed by injection molding.

[0110] In this way, by injection molding the plate body 100 , the electrical lead-out member 200 and the insulating member 300 into an integrated structure, the assembly efficiency of the battery housing 10 can be improved, thereby improving the assembly efficiency of the battery.

[0111] In other embodiments, the board body 100 , the electrical lead 200 and the insulating member 300 can also be connected by riveting.

[0112] In some embodiments, the insulating member 300 is a plastic insulating member, a rubber insulating member, or a ceramic insulating member.

[0113] In this way, by setting the insulating member 300 as a plastic insulating member, a rubber insulating member or a ceramic insulating member, the structure of the insulating member 300 can be simplified, the manufacturing cost of the insulating member 300 can be reduced, and the manufacturing cost of the battery housing 10 can be reduced.

[0114] In some embodiments, when the board body 100, electrical lead 200, and insulating member 300 are injection-molded into an integrated structure, the insulating member 300 may be made of an insulating plastic material suitable for nano-injection molding. When the board body 100, electrical lead 200, and insulating member 300 are riveted together, the insulating member 300 may be made of an insulating plastic or rubber material. When the board body 100, electrical lead 200, and insulating member 300 are welded together, the insulating member 300 may be made of an insulating ceramic material.

[0115] refer to Figure 6 In some embodiments, the battery housing 10 may further include a terminal 400, which is disposed on a side of the electrical lead-out member 200 facing away from the insulating member 300 and is electrically connected to the electrical lead-out member 200. The terminal 400 can be welded to the electrical lead-out member 200. The tab 31 extends to a side of the electrical lead-out member 200 facing away from the housing 20 and is electrically connected to the electrical lead-out member 200. The terminal 400 is electrically connected to the electrical lead-out member 200, thereby enabling current to be transmitted to the electrical lead-out member 200 through the tab 31, and further transmitted from the electrical lead-out member 200 to the terminal 400.

[0116] In this way, by arranging the electric lead-out member 200 on the side of the plate body 100 facing away from the shell 20, and directly connecting the terminal 400 to the electric lead-out member 200 on the side of the electric lead-out member 200 facing away from the shell 20, not only can the electrical connection between the terminal 400 and the electric lead-out member 200 be achieved, but the first insulating portion 310 of the insulating member 300 can insulate the plate body 100 from the electric lead-out member 200 and also insulate the terminal 400 from the plate body 100, thereby reducing the number of components of the battery casing 10, simplifying the structure of the battery casing 10 and reducing the manufacturing cost of the battery casing 10 and the battery.

[0117] refer to Figure 1 and Figure 6 , an embodiment of the present application further provides a battery, which may include a pole core 30 and the above-mentioned battery casing 10.

[0118] The housing 20 in the battery housing 10 has an installation opening 21. The pole core 30 is disposed in the housing 20. The pole core 30 has a tab 31 on the side facing the installation opening 21. The tab 31 passes through the first opening 110 of the plate body 100 of the battery housing 10, the third opening 311 of the insulating member 300, and the second opening 210 of the electrical lead 200, and is electrically connected to the surface of the electrical lead 200 facing away from the housing 20. The battery housing 10 is covered with the installation opening 21.

[0119] An embodiment of the present application provides a battery, which uses the above-mentioned battery housing 10 and electrically connects the electrical lead 200 of the battery housing 10 to the tab 31 on the pole core 30, thereby preventing welding slag from falling into the pole core 30, reducing the probability of short circuit in the pole core 30, and improving the safety and yield of the battery.

[0120] In some embodiments, the battery may further include a pole core insulating film and an explosion-proof valve. The pole core insulating film is coated on the outer surface of the pole core 30 to insulate the pole core 30 from the shell 20. The explosion-proof valve can be set in the shell 20 to improve the safety of battery use.

[0121] refer to Figure 6 In some embodiments, the tab 31 may include an extension segment 31a and a connecting segment 31b. One end of the extension segment 31a is connected to the pole core 30, and the other end of the extension segment 31a is inserted into the first opening 110, the second opening 210, and the third opening 311. The connecting segment 31b is connected to the end of the extension segment 31a facing away from the pole core 30 and can be disposed on the surface of the electrical lead 200 facing away from the pole core 30. The extension segment 31a extends perpendicular to the direction of extension of the connecting segment 31b.

[0122] In this way, the number of times the tab 31 is bent can be reduced, the assembly time between the tab 31 and the electrical lead 200 can be shortened, and the space occupied by the tab 31 in the housing 20 can be reduced, thereby improving the assembly efficiency of the battery.

[0123] An embodiment of the present application further provides an electrical device, which may include an electrical device and a battery as described above, wherein the battery is used to provide electrical energy to the electrical device.

[0124] An embodiment of the present application provides an electrical device, which uses the above-mentioned battery to provide electrical energy to the electrical device, thereby reducing the use risk of the power supply process and improving the safety of the electrical device.

[0125] In some embodiments, the electrical equipment can be a vehicle or an energy storage device. The vehicle can be a new energy vehicle (New Energy Vehicle), such as a pure electric vehicle (Pure Electric Vehicle / Battery Electric Vehicle; abbreviated as: PEV / BEV), a range extended electric vehicle (Range Extended Electric Vehicle; abbreviated as: REEV), a hybrid electric vehicle (Hybrid Electric Vehicle; abbreviated as: HEV), or a fuel cell electric vehicle. The vehicle can also be any vehicle with a battery.

[0126] The various embodiments or implementation methods in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referenced to each other.

[0127] It should be noted that phrases such as "in a specific implementation," "in some embodiments," "in this embodiment," and "exemplarily" mentioned in the specification indicate that the described embodiment may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0128] Generally speaking, terms should be understood, at least in part, based on the context in which they are used. For example, as used herein, the term "one or more" can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" can also be understood to convey either singular or plural usage, depending at least in part on the context.

[0129] It should be readily understood that “on,” “above,” and “over” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0130] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be in other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0131] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery housing (10), characterized in that: include: housing (20); A plate body (100) having a first opening (110), the plate body (100) being arranged on the housing (20); an electrical lead-out member (200) disposed on a side of the plate body (100) facing away from the housing (20), the electrical lead-out member (200) having a second opening (210) corresponding to the first opening (110); An insulating member (300) comprising a first insulating portion (310), the first insulating portion (310) being disposed between the plate body (100) and the electrical lead-out member (200), the first insulating portion (310) having a third opening (311) communicating with the first opening (110) and the second opening (210), the electrical lead-out member (200) being used to electrically connect to a tab (31) of a battery passing through the first opening (110), the third opening (311), and the second opening (210); The first insulating portion (310) is used to insulate the board body (100) from the electrical lead (200).

2. The battery housing according to claim 1, wherein: In the thickness direction of the plate body (100), the orthographic projections of the first opening (110), the second opening (210) and the third opening (311) at least partially overlap.

3. The battery housing according to claim 2, wherein: In the width direction of the electrical lead-out piece (200), the second opening (210) is located on the center line of the electrical lead-out piece (200) in the width direction; Alternatively, the second opening (210) is arranged close to one side of the electrical lead-out member (200) in the width direction.

4. The battery housing according to any one of claims 1 to 3, characterized in that: The battery housing further includes a terminal (400); The terminal (400) is arranged on a side of the electrical lead-out piece (200) facing away from the insulating piece (300) and is electrically connected to the electrical lead-out piece (200).

5. The battery housing according to any one of claims 1 to 3, characterized in that: The insulating member (300) further includes a second insulating portion (320); The second insulating portion (320) is covered on the inner edge of the first opening (110), and the second insulating portion (320) has a fourth opening (321) communicating with the third opening (311); The second insulating portion (320) is used to insulate the tab (31) passing through the fourth opening (321) from the plate body (100).

6. The battery housing according to claim 5, characterized in that The insulating member (300) further includes a third insulating portion (330): The third insulating portion (330) is provided on a side of the plate body (100) facing the housing (20), and the third insulating portion (330) has a fifth opening (331) communicating with the fourth opening (321); The third insulating portion (330) is used to insulate the surface of the plate body (100) facing the housing (20) from the tab (31).

7. The battery housing according to any one of claims 1 to 3, characterized in that: The plate body (100), the electrical lead-out member (200) and the insulating member (300) are an integral structure formed by injection molding.

8. The battery housing according to any one of claims 1 to 3, characterized in that: The insulating member (300) is a plastic insulating member (300), a rubber insulating member (300) or a ceramic insulating member (300).

9. The battery housing according to any one of claims 1 to 3, characterized in that: The electrical lead (200) has a groove (220) on a side facing away from the plate body (100), the bottom of the groove (220) being connected to the second opening (210), and the bottom of the groove (220) being used to connect to the portion of the tab (31) passing through the second opening (210).

10. The battery housing according to claim 1, wherein: The plate body (100) and the shell (20) are an integrated structure.

11. A battery, characterized in that: Comprising a pole core (30), and a battery housing (10) according to any one of claims 1 to 10; The pole core (30) is arranged in the shell (20) of the battery housing (10), and the pole core (30) has a pole ear (31) on a side facing the installation opening (21); The tab (31) passes through the first opening (110) of the plate body (100) of the battery housing (10), the third opening (311) of the insulating member (300), and the second opening (210) of the electrical lead (200), and is electrically connected to the electrical lead (200).

12. The battery according to claim 11, characterized in that The tab (31) comprises: an extension section (31a), one end of which is connected to the pole core (30), and the other end of which is passed through the first opening (110), the second opening (210), and the third opening (311); The connecting section (31b) is connected to one end of the extending section (31a) facing away from the pole core (30), and is arranged on a surface of the electrical lead-out member (200) facing away from the pole core (30).

13. The battery according to claim 12, characterized in that The extending direction of the extending section (31a) is perpendicular to the extending direction of the connecting section (31b).

14. An electrical device, characterized in that: The invention comprises an electric device and the battery as claimed in claim 11, wherein the battery is used to provide electric energy to the electric device.

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