Electric connector, battery device and electric equipment

Abstract

The utility model discloses an electric connector, a battery device and electric equipment, the electric connector comprises a first mounting seat and a second mounting seat, and the first mounting seat is suitable for being fixedly connected with one of a tab of a battery cell and a board body of a circuit board; the second mounting seat is suitable for being fixedly connected with the other one of the tab and the plate body, and the first mounting seat and the second mounting seat are detachably connected. The electric connecting piece comprises the first mounting seat and the second mounting seat, one of the first mounting seat and the second mounting seat is connected with the tab, the other one of the first mounting seat and the second mounting seat is connected with the circuit board, and the first mounting seat and the second mounting seat are detachably connected; the tabs and the circuit board are electrically connected and replaced through assembly and disassembly of the first mounting seat and the second mounting seat, welding is not needed, and the process is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to an electric connector, a battery device and electric equipment. Background Art

[0002] The connection between the tabs and the circuit board is usually done by laser welding. The positive and negative tabs of the battery cell are connected to the pads on the circuit board by laser spot welding. Before laser spot welding, it is necessary to adjust the welding energy, light frequency, welding times, etc., which is a complicated process. Utility Model Content

[0003] The utility model aims to provide an electrical connector, a battery device and an electrical equipment, wherein welding between the pole ear and the circuit board is unnecessary and the process is simple.

[0004] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0005] In a first aspect, the utility model provides an electrical connector, comprising a first mounting seat and a second mounting seat, wherein the first mounting seat is suitable for being connected and fixed to one of a pole ear of a battery cell and a plate body of a circuit board; the second mounting seat is suitable for being connected and fixed to the other of the pole ear and the plate body, and the first mounting seat and the second mounting seat are detachably connected.

[0006] In one embodiment, the first mounting seat includes a first mounting portion, the second mounting seat includes a second mounting portion, and the first mounting portion is suitable for being snap-fitted with the second mounting portion.

[0007] In one embodiment, the first mounting portion defines a first mounting groove, and the first mounting portion further includes a first protrusion, and the first protrusion is connected to the bottom wall of the first mounting groove; the second mounting portion defines a second mounting groove, and the first protrusion is suitable for cooperating and connecting with the second mounting groove.

[0008] In one embodiment, the second mounting portion is suitable for extending into the first mounting groove.

[0009] In one embodiment, the first mounting portion further includes a spring sheet, which is connected to the bottom wall of the first mounting groove and spaced apart from the first protrusion. The second mounting portion further has a corresponding fixing groove, and the spring sheet is suitable for extending into the fixing groove.

[0010] In one embodiment, the first mounting seat further includes a guide portion, the guide portion is connected to a side wall of the first mounting groove, and the guide portion is suitable for connecting to an outer peripheral surface of the second mounting portion.

[0011] In one embodiment, there are multiple guide portions, and the multiple guide portions are arranged on at least one side wall of the first mounting groove.

[0012] In one embodiment, the first mounting seat is an integrated structure, and / or the second mounting seat is an integrated structure.

[0013] In a second aspect, the utility model provides a battery device, comprising a battery cell, a circuit board and an electrical connector as described in any one of the various embodiments of the first aspect, wherein the battery cell comprises a pole ear, the circuit board comprises a board body, the first mounting seat is connected and fixed to the pole ear, and the second mounting seat is connected and fixed to the board body.

[0014] In a third aspect, the utility model provides an electrical device, comprising an electrical device and the battery device described in the second aspect, wherein the battery device supplies power to the electrical device.

[0015] By setting an electrical connector including a first mounting seat and a second mounting seat, one of the first mounting seat and the second mounting seat is connected to the pole ear, and the other is connected to the circuit board, and the first mounting seat and the second mounting seat are detachably connected, the pole ear and the circuit board are electrically connected and replaced through assembly and disassembly of the first mounting seat and the second mounting seat, without welding, and the process is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a schematic diagram of a battery cell and a first mounting seat of an embodiment;

[0018] Figure 2 is a schematic diagram of a circuit board and a second mounting seat of an embodiment;

[0019] Figure 3 is a top view of a first mounting base of an embodiment;

[0020] Figure 4 is a perspective view of a first mounting base of an embodiment;

[0021] Figure 5 is a top view of a second mounting base of an embodiment;

[0022] Figure 6 is a perspective view of a second mounting base of an embodiment;

[0023] Figure 7 The present invention is a cross-sectional schematic diagram of an electrical connector according to an embodiment.

[0024] Description of reference numerals:

[0025] 100-battery cell, 11-body, 12-ear;

[0026] 200-circuit board, 21-board body;

[0027] 300-electrical connector, 31-first mounting seat, 311-first mounting portion, 312-first plate, 313-first mounting groove, 314-first protrusion, 315-spring, 316-guide portion, 32-second mounting seat, 321-second mounting portion, 322-second plate, 323-second mounting groove, 324-fixing groove;

[0028] H - first height. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0031] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0032] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0033] An embodiment of the utility model provides an electric device, including an electric device and a battery device in the embodiment of the utility model, and the battery device supplies power to the electric device.

[0034] Optionally, the electrical device may be an electric vehicle, a hybrid vehicle, a base station, a household electrical load, etc., and may also be used in electronic devices such as laptop computers, mobile phones, etc.

[0035] Optionally, the battery device may be a power battery device, an energy storage battery device, etc., without specific limitation.

[0036] The embodiment of the utility model further provides a battery device, including a battery cell, a circuit board and an electrical connector in the embodiment of the utility model.

[0037] Optional, such as Figure 1 and Figure 2 As shown, the battery cell 100 includes a body 11 and a tab 12, and the tab 12 is connected to the body 11. The circuit board 200 includes a board body 21, and the electrical connector 300 connects the tab 12 and the board body 21.

[0038] Optionally, the battery cell 100 may be a laminated battery cell 100 , a wound battery cell 100 , etc., without limitation.

[0039] Optionally, the battery cell 100 includes a positive electrode sheet, a negative electrode sheet and a separator, and the positive electrode sheet, the separator and the negative electrode sheet are stacked in sequence. The tab 12 includes a positive electrode tab 12 and a negative electrode tab 12, and the positive electrode tab 12 and the negative electrode tab 12 can be arranged at the same end of the battery cell 100, or respectively at two opposite or adjacent ends of the battery cell 100, without specific limitation.

[0040] Optionally, the connection method between the electrode tab 12 and the current collector may be welding, bonding, clamping, screwing, etc., without specific limitation.

[0041] Optionally, the battery device further comprises a housing, the housing comprising a housing bottom plate and a plurality of side plates, the side plates being connected to the housing bottom plate and enclosing to form a receiving cavity. The receiving cavity is open at one end opposite to the housing bottom plate, and the battery cell 100 is received in the receiving cavity.

[0042] Optionally, the shell is made of a material with high structural strength, specifically metal materials, high-strength plastics, ceramics, etc., and metal materials such as aluminum, aluminum alloys, magnesium alloys, iron and iron alloys, etc. The shell can be an integrated structure, that is, the shell bottom plate and the side plates are an integrated structure made by an integrated molding process, and the integrated molding process can be specifically stamping, casting, etc., without limitation. The shell can also be a split structure, and the side plates and the shell bottom plate can be connected and fixed by welding, bonding, clamping, screwing, etc. The wall thickness of the shell can be roughly uniform everywhere, that is, the thickness of the side plates can be roughly uniform, and the thickness of the shell bottom plate and the side plates can also be roughly the same.

[0043] Optionally, the battery device further comprises a shell cover plate, which is connected to the opening of the shell to close the accommodating cavity. The shell cover plate and the shell can be connected by welding, bonding, clamping, screwing, etc., without limitation. The shape of the shell cover plate can be substantially the same as that of the shell bottom plate.

[0044] Optionally, the circuit board 200 is a circuit board 200 commonly used in the art, such as a flexible circuit board 200, a rigid circuit board 200, a hard-soft integrated circuit board 200, a hard-soft combined circuit board 200, a printed circuit board 200 (PCB), a ceramic circuit board 200, etc., without specific limitation.

[0045] Optionally, the shape of the plate body 21 can be rectangular, square, circular, irregular polygonal, etc., without specific limitation.

[0046] Optionally, there is no limit to the number of electrical connectors 300 , and the number may be 2, 4, 6, 8, etc. The number of electrical connectors 300 may correspond to the number of tabs 12 , and there is no specific limit.

[0047] In the prior art, the connection between the tabs 12 and the circuit board 200 is usually achieved by laser welding. The positive and negative tabs 12 of the battery cell 100 are connected to the nickel bricks on the circuit board 200 by laser spot welding. During welding, the battery cell 100 and the circuit board 200 are placed in a spot welding jig and welded outside the line; or the battery cell 100 and the PCBA are placed in a plastic frame and automatic spot welding is used. Both processes require adjustment of welding energy, light frequency and number of times before spot welding. And it is troublesome to replace the battery cell 100 after welding is completed.

[0048] This method does not meet the new EU law's requirements for portable batteries to be removable and replaceable. The regulations require that users can replace the battery cells themselves without the use of special tools, except for the free provision of proprietary tools or disassembly solvents.

[0049] The battery device in the embodiment of the utility model realizes a detachable connection between the tab 12 and the circuit board 200 by adopting the electrical connector 300 in the embodiment of the utility model, without welding, and is convenient for replacing the battery cell 100.

[0050] The electrical connector 300 in the embodiment of the present utility model is described in detail below.

[0051] Please refer to Figure 1 and Figure 2The embodiment of the utility model further provides an electrical connector 300, comprising a first mounting seat 31 and a second mounting seat 32. The first mounting seat 31 is suitable for being connected and fixed to one of the tab 12 of the battery cell 100 and the board body 21 of the circuit board 200, and the second mounting seat 32 is suitable for being connected and fixed to the other of the tab 12 and the board body 21, and the first mounting seat 31 and the second mounting seat 32 are detachably connected.

[0052] Optionally, one of the first mounting seat 31 and the second mounting seat 32 is electrically connected to the tab 12, and the other is electrically connected to the board body 21. When the first mounting seat 31 and the second mounting seat 32 are connected, the first mounting seat 31 and the second mounting seat 32 are also electrically connected, so that the tab 12 and the board body 21 can be electrically connected through the electrical connector 300.

[0053] Optionally, the material of the electrical connector 300 may be nickel, nickel-plated copper, tin-copper alloy, gold-plated material, etc., without specific limitation.

[0054] Optionally, the first mounting seat 31 is connected to the tab 12 by SMT (surface mount technology) or laser spot welding. When laser spot welding is used, the solder joints can be arranged in 2×3 according to the process, the width of the tab 12 and the test standard, and the solder joint tension is ≥ 2Kgf.

[0055] Optionally, the second mounting seat 32 and the board body 21 can be connected by welding, bonding, clamping, screwing, etc., without limitation. Alternatively, the second mounting seat 32 and the circuit board 200 can be pre-welded together and then assembled, saving welding steps during installation.

[0056] Optional, such as Figure 1 and Figure 2 As shown, in one embodiment, the first mounting seat 31 is connected and fixed to the pole ear 12 of the battery cell 100, and the second mounting seat 32 is connected and fixed to the board body 21 of the circuit board 200; or, the first mounting seat 31 is connected and fixed to the board body 21 of the circuit board 200, and the second mounting seat 32 is connected and fixed to the pole ear 12 of the battery cell 100, without limitation.

[0057] Optionally, the first mounting seat 31 and the second mounting seat 32 may be connected in a rotating manner, a snap connection, etc., which is not specifically limited.

[0058] The electrical connector 300 in the embodiment of the utility model is provided with a first mounting seat 31 and a second mounting seat 32. One of the first mounting seat 31 and the second mounting seat 32 is connected to the pole ear 12, and the other is connected to the circuit board 200. The first mounting seat 31 and the second mounting seat 32 are detachably connected. The pole ear 12 and the circuit board 200 are electrically connected and replaced through the first mounting seat 31 and the second mounting seat 32. No welding is required, and the process is simple.

[0059] Optional, such as Figure 3 and Figure 5 As shown, the first mounting seat 31 includes a first mounting portion 311 , and the second mounting seat 32 includes a second mounting portion 321 . The first mounting portion 311 is suitable for being engaged with the second mounting portion 321 .

[0060] Optionally, when the first mounting portion 311 is engaged with the second mounting portion 321 , the first mounting seat 31 is electrically connected to the second mounting seat 32 , so that the tab 12 and the plate body 21 are electrically connected through the electrical connector 300 .

[0061] Optional, such as Figure 1 and Figure 3 As shown, when the first mounting seat 31 is connected and fixed to the tab 12 of the battery cell 100 , the first mounting seat 31 further includes a first plate 312 , one side of the first plate 312 is connected to the first mounting portion 311 , and the other side opposite thereto is connected to the tab 12 .

[0062] First define the direction. Figure 3 As shown, X is the first direction, Y is the second direction, and Z is the third direction.

[0063] Optionally, the shape of the first plate 312 can be square, circular, polygonal, etc., without specific limitation.

[0064] The first mounting seat 31 can be an integrated structure, that is, the first plate body 312 and the first mounting portion 311 are an integrated structure made by an integrated molding process, and the integrated molding process can be stamping, casting, etc., without limitation. The first mounting seat 31 can also be a split structure, and the first plate body 312 and the first mounting portion 311 can be connected and fixed by welding, bonding, clamping, screwing, etc.

[0065] Optional, such as Figure 3 As shown, the orthographic projection of the first mounting portion 311 on the first plate body 312 is located inside the first plate body 312 , and the contact area between the first plate body 312 and the tab 12 is large, and the connection is stable.

[0066] Optional, such as Figure 2 and Figure 5 As shown, when the second mounting seat 32 is connected and fixed to the board body 21 of the circuit board 200 , the second mounting seat 32 further includes a second board body 322 , one side of the second board body 322 is connected to the second mounting portion 321 , and the other side opposite thereto is connected to the board body 21 .

[0067] Optionally, the second plate body 322 is connected to the plate body 21 in the third direction Z.

[0068] Similarly, the connection relationship between the second plate body 322 and the second mounting portion 321 is similar to that between the first plate body 312 and the first mounting portion 311 , which can be referred to and will not be described in detail.

[0069] By setting the first mounting portion 311 of the first mounting seat 31 to be engaged with the second mounting portion 321 of the second mounting seat 32, the tab 12 can be fixed between the first mounting seat 31 and the second mounting seat 32, and welding between the tab 12 and the electrical connector 300 is not required, which is convenient for processing. When the battery cell 100 needs to be replaced, the first mounting portion 311 and the second mounting portion 321 can be separated to replace the battery cell 100.

[0070] Optionally, the first mounting seat 31 is an integrated structure, and / or the second mounting seat 32 is an integrated structure. The first mounting seat 31 and / or the second mounting seat 32 can be an integrated structure manufactured by an integrated molding process to facilitate mass production.

[0071] Optional, such as Figure 4 and Figure 6 As shown, the first mounting portion 311 defines a first mounting groove 313 , and the first mounting portion 311 further includes a first protrusion 314 , which is connected to the bottom wall of the first mounting groove 313 ; the second mounting portion 321 defines a second mounting groove 323 , and the first protrusion 314 is suitable for being matched and connected with the second mounting groove 323 .

[0072] Optionally, the cross-sectional shape of the first installation groove 313 may be square, circular, polygonal, etc., without specific limitation.

[0073] Optionally, in one embodiment, the bottom wall of the first mounting groove 313 is the first plate body 312 ; or, the bottom wall of the first mounting groove 313 is closer to the end of the first mounting portion 311 facing away from the first plate body 312 than the first plate body 312 , without specific limitation.

[0074] Optionally, the shape of the first protrusion 314 may be block-shaped or column-shaped, such as a cylinder, a prism, etc., and the number of the first protrusion 314 may be one or more, and there is no specific limitation.

[0075] Optionally, the first mounting portion 311 may be an integrated structure, or the first protrusion 314 and the bottom wall of the first mounting groove 313 may be connected and fixed by welding, bonding, clamping, screwing, etc., without limitation.

[0076] Optionally, the shape of the second installation groove 323 may correspond to the first protrusion 314 , and there is no specific limitation.

[0077] Optionally, the depth of the second mounting groove 323 may be the same as the height of the first protrusion 314, or may be slightly greater than the height of the first protrusion 314. That is, the dimension of the second mounting groove 323 in the third direction Z may be the same as the dimension of the first protrusion 314 in the third direction Z, or may be slightly greater than the dimension of the first protrusion 314 in the third direction Z. When the first mounting portion 311 is engaged with the second mounting portion 321, the end of the second mounting groove 323 at the first protrusion 314 away from the bottom surface of the first mounting groove 313 may contact the bottom wall of the second mounting groove 323, or may have a gap with the bottom wall of the second mounting groove 323, and there is no specific limitation.

[0078] By setting the first mounting portion 311 to open a first mounting groove 313, the first protrusion 314 is connected to the bottom wall of the first mounting groove 313, and when the first mounting portion 311 and the second mounting portion 321 are clamped, the first protrusion 314 and the second mounting groove 323 are matched and connected, so that the electrical connection between the pole ear 12 and the circuit board 200 can be achieved, and there is no need for welding connection between the pole ear 12 and the circuit board 200, and the process is simple.

[0079] Optionally, the second mounting portion 321 is suitable for extending into the first mounting groove 313 .

[0080] Optionally, the shape of the second mounting portion 321 may correspond to the first mounting groove 313 , and there is no specific limitation thereto.

[0081] Optionally, the height of the second mounting portion 321 may be the same as the depth of the first mounting groove 313 , or may be slightly smaller than the depth of the first mounting groove 313 to avoid assembly interference.

[0082] That is, the size of the second mounting portion 321 in the third direction Z may be the same as the size of the first mounting groove 313 in the third direction Z, or may be slightly smaller than the size of the first mounting groove 313 in the third direction Z. When the first mounting portion 311 is engaged with the second mounting portion 321, the end of the second mounting portion 321 away from the bottom surface of the second mounting groove 323 may contact the bottom wall of the first mounting groove 313, or may have a gap with the bottom wall of the first mounting groove 313, and there is no specific limitation.

[0083] When the first mounting portion 311 is engaged with the second mounting portion 321, the second mounting portion 321 extends into the first mounting groove 313, and the first convex portion extends into the second mounting groove 323. The first mounting portion 311 and the second mounting portion 321 cooperate with each other through the concave-convex fit, which can improve the connection stability of the first mounting seat 31 and the second mounting seat 32.

[0084] Optional, such as Figure 4 and Figure 6As shown, the first mounting portion 311 further includes an elastic sheet 315 , which is connected to the bottom wall of the first mounting groove 313 and spaced apart from the first protrusion 314 . The second mounting portion 321 further has a corresponding fixing groove 324 , and the elastic sheet 315 is suitable for extending into the fixing groove 324 .

[0085] Optionally, the shape of the spring piece 315 is not limited and may be square, rectangular, polygonal, etc.

[0086] Optionally, the first mounting portion 311 may be an integrated structure, or the spring piece 315 and the bottom wall of the first mounting groove 313 may be connected and fixed by welding, bonding, clamping, screwing, etc., without limitation.

[0087] Optionally, the number of the spring pieces 315 may be one or more, and there is no specific limitation.

[0088] For example, Figure 4 As shown, there are two spring pieces 315 , and one spring piece 315 is disposed on two opposite sides of the first protrusion 314 in the second direction Y, respectively.

[0089] Optionally, the position and number of the fixing grooves 324 may correspond to the spring pieces 315 , which will not be described in detail.

[0090] By configuring the first mounting portion 311 to also include a spring piece 315 and the second mounting portion 321 to also correspondingly open a fixing groove 324, when the first mounting portion 311 and the second mounting portion 321 are engaged, the spring piece 315 is suitable for extending into the fixing groove 324, thereby further improving the connection stability between the first mounting portion 311 and the second mounting portion 321.

[0091] Optional, such as Figure 4 As shown, the first mounting seat 31 further includes a guide portion 316 , which is connected to the side wall of the first mounting groove 313 , and is suitable for connecting to the outer peripheral surface of the second mounting portion 321 .

[0092] Optionally, the first mounting seat 31 can be an integrated structure, that is, the guide portion 316 and the first mounting portion 311 are an integrated structure made by an integrated molding process, and the integrated molding process can be stamping, casting, etc., without limitation. Alternatively, the guide portion 316 and the bottom wall of the first mounting groove 313 are connected and fixed by welding, bonding, clamping, screwing, etc.

[0093] Optionally, the shape of the guide portion 316 is not specifically limited. Figure 4As shown, the guide portion 316 is in an arc shape, and the guide portion 316 protrudes outward relative to the side wall of the first mounting groove 313. When the first mounting portion 311 and the second mounting portion 321 are clamped together along the third direction Z, the guide portion 316 contacts the outer surface of the second mounting portion 321, guiding and positioning the second mounting portion 321, so that the second mounting portion 321 extends into the first mounting groove 313.

[0094] By setting the first mounting seat 31 to also include a guide portion 316, the guide portion 316 is connected to the outer peripheral surface of the second mounting portion 321. When the first mounting portion 311 and the second mounting portion 321 are clamped, the guide portion 316 contacts the outer surface of the second mounting portion 321, guides and positions the second mounting portion 321, and improves the connection stability.

[0095] Optionally, there are multiple guide portions 316 , and the multiple guide portions 316 are disposed on at least one side wall of the first installation groove 313 .

[0096] Optionally, a plurality of guide portions 316 may be disposed on adjacent and / or opposite side walls of the first mounting groove 313 , without specific limitation.

[0097] Optionally, there may be two, four, etc. guide portions 316, which are not specifically limited. The first mounting groove 313 is provided with guide portions 316 on two side walls opposite to each other in the first direction X, or the first mounting groove 313 is provided with guide portions 316 on two side walls opposite to each other in the second direction Y, or the first mounting groove 313 is provided with guide portions 316 on two side walls opposite to each other in the first direction X and two side walls opposite to each other in the second direction Y. All of the above methods are possible, which are not specifically limited.

[0098] For example, Figure 4 As shown, two side walls of the first installation slot 313 opposite to each other in the second direction Y are respectively provided with guide parts 316. There are four guide parts 316, and one guide part 316 is respectively provided at both ends of the side wall of the first installation slot 313 in the second direction Y along the first direction X.

[0099] By setting a plurality of guide portions 316, wherein the plurality of guide portions 316 are arranged on at least one side wall of the first mounting groove 313, when the first mounting portion 311 is engaged with the second mounting portion 321, the guide portion 316 contacts the outer surface of the second mounting portion 321, guides and positions the second mounting portion 321, and improves the connection stability.

[0100] Optionally, when the first mounting portion 311 is engaged with the second mounting portion 321, Figure 7 As shown, the first mounting seat 31 and the second mounting seat 32 are buckled, and the electrical connector 300 has a first height H in the third direction Z, satisfying: 0.7 mm≤H≤1.8 mm.

[0101] Optionally, the value of the first height H satisfies: 0.9 mm ≤ H ≤ 1.5 mm. The value of the first height H may be 0.9 mm, 1.2 mm, 1.5 mm, etc., without any specific limitation.

[0102] In the prior art, the tab 12 is connected to the pad on the board body 21 of the circuit board 200, the thickness of the pad is about 0.5 mm, and the thickness of the tab 12 is about 0.15 mm. Combined with the product thickness, after welding, there will be a height difference of at least 0.5 mm between the top of the tab 12 and the outer shell cover of the battery device, and the outer shell cover is easy to bend and deform to produce abnormal sound.

[0103] The electrical connector 300 in the embodiment of the utility model can adjust the first height H of the electrical connector 300 according to the gap between the circuit board 200 and the outer shell cover of the battery device to reduce the distance between the electrical connector 300 and the outer shell cover. The side of the cover body facing away from the base is in contact with the outer shell cover and can also play a certain supporting role for the outer shell cover.

[0104] Optionally, an elastic member is further provided on the side of the outer shell cover facing the electrical connector 300. When the battery device supplies power to the electrical device, the first mounting seat 31 of the electrical connector 300 is snapped into the second mounting seat 32, and the outer shell cover is connected to the outer shell. At this time, the elastic member abuts against the electrical connector 300, which can further improve the connection stability of the electrical connector 300 and prevent the first mounting seat 31 from separating from the second mounting seat 32.

[0105] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0106] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. An electrical connector (300), characterized in that: include: A first mounting seat (31) adapted to be connected and fixed to one of a tab (12) of the battery cell (100) and a body (21) of the circuit board (200); The second mounting seat (32) is suitable for being connected and fixed to the other of the pole ear (12) and the plate body (21), and the first mounting seat (31) and the second mounting seat (32) are detachably connected.

2. The electrical connector (300) according to claim 1, characterized in that: The first mounting seat (31) comprises a first mounting portion (311), the second mounting seat (32) comprises a second mounting portion (321), and the first mounting portion (311) is suitable for being snap-fitted with the second mounting portion (321).

3. The electrical connector (300) according to claim 2, characterized in that: The first mounting portion (311) is provided with a first mounting groove (313), and the first mounting portion (311) further includes a first protrusion (314), and the first protrusion (314) is connected to the bottom wall of the first mounting groove (313); the second mounting portion (321) is provided with a second mounting groove (323), and the first protrusion (314) is suitable for being matched and connected with the second mounting groove (323).

4. The electrical connector (300) according to claim 3, characterized in that: The second mounting portion (321) is suitable for extending into the first mounting groove (313).

5. The electrical connector (300) according to claim 3, characterized in that: The first mounting portion (311) further comprises a spring sheet (315), wherein the spring sheet (315) is connected to the bottom wall of the first mounting groove (313) and is spaced apart from the first protrusion (314); the second mounting portion (321) further comprises a corresponding fixing groove (324), and the spring sheet (315) is adapted to extend into the fixing groove (324).

6. The electrical connector (300) according to claim 3, characterized in that: The first mounting seat (31) further comprises a guide portion (316), wherein the guide portion (316) is connected to a side wall of the first mounting groove (313), and the guide portion (316) is suitable for connecting to an outer peripheral surface of the second mounting portion (321).

7. The electrical connector (300) according to claim 6, characterized in that: There are a plurality of guide portions (316), and the plurality of guide portions (316) are arranged on at least one side wall of the first installation groove (313).

8. The electrical connector (300) according to claim 1, characterized in that: The first mounting seat (31) is an integrated structure, and / or the second mounting seat (32) is an integrated structure.

9. A battery device, characterized in that: The invention comprises a battery cell (100), a circuit board (200) and an electrical connector (300) according to any one of claims 1 to 8, wherein the battery cell (100) comprises a pole ear (12), the circuit board (200) comprises a board body (21), the first mounting seat (31) is connected and fixed to the pole ear (12), and the second mounting seat (32) is connected and fixed to the board body (21).

10. An electrical device, characterized in that: It comprises an electric device and the battery device as claimed in claim 9, wherein the battery device supplies power to the electric device.

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