Button cell and electronic equipment

Abstract

The invention discloses a button cell and electronic equipment, and relates to the technical field of button cells. The button cell comprises a cell body, a first pole connecting piece, a second pole connecting piece and a protection plate, the first pole connecting piece is fixed to a pole column of the cell body and electrically connected with the pole column of the cell body, and the second pole connecting piece is fixed to a cover plate of the cell body and electrically connected with the cover plate of the cell body. The protection plate is fixed to the first pole connecting piece and the second pole connecting piece, the first pole leading-out area of the protection plate is electrically connected with the first pole connecting piece, and the second pole leading-out area of the protection plate is electrically connected with the second pole connecting piece. According to the button cell, through the arrangement of the electric connection structure of the protection plate and the positive second electrode connecting piece, rapid disassembly and assembly of the cell and the terminal equipment are realized, the problem of tedious replacement caused by a traditional welding mode is avoided, and the button cell has the advantages of being convenient to replace, improving the use convenience and reducing the maintenance cost.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of button cell, and particularly relates to a button cell and electronic equipment. BACKGROUND

[0002] Button cells are widely used in various miniature electronic products such as computer mainboards, electronic watches, electronic dictionaries, electronic scales, remote controls, electric toys, cardiac pacemakers, electronic hearing aids, counters, cameras, etc. as power sources or backup power sources due to their small size and other characteristics.

[0003] The traditional button cell structure design has obvious defects. The pole and the cover plate are usually directly welded with wires to achieve electrical connection with the terminal product. This fixed connection method makes the battery replacement process extremely tedious. In actual use, when the battery runs out and needs to be replaced, the maintenance personnel must first remove the welded wires of the old battery, and then re-weld the new battery to the terminal product through the wires. This not only requires professional tools and operation skills, but also easily causes poor contact or solder point falling due to repeated welding.

[0004] In addition, this non-detachable connection method also increases maintenance costs and reduces the convenience of using electronic products. This design defect is more prominent for medical equipment or precision instruments that need to replace batteries frequently. There is a lack of a button cell structure scheme in the prior art that can ensure stable electrical connection and convenient disassembly and assembly. The prior art needs to be improved in view of the above problems. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a button cell and electronic equipment to solve the problem of non-detachable electrical connection between the existing button cell and the terminal product.

[0006] To solve the above problems, on the one hand, the present application provides a button cell, which comprises a battery body, a first pole connecting piece, a second pole connecting piece and a protection plate. The first pole connecting piece is fixed to the pole of the battery body and electrically connected to the pole of the battery body. The second pole connecting piece is fixed to the cover plate of the battery body and electrically connected to the cover plate of the battery body. The protection plate is fixed to the first pole connecting piece and the second pole connecting piece. The first pole lead-out area of the protection plate is electrically connected to the first pole connecting piece, and the second pole lead-out area of the protection plate is electrically connected to the second pole connecting piece.

[0007] As a further improvement of the above technical solution: Optionally, the button cell further comprises an insulation layer, the insulation layer is arranged on the cover plate of the battery body, and the insulation layer is provided with a first through hole and a second through hole, the first through hole is used for electrically connecting the pole of the battery body and the first pole connecting piece, and the second through hole is used for electrically connecting the cover plate of the battery body and the second pole connecting piece.

[0008] Optionally, the first pole connecting piece comprises a first pole bottom sheet, two first pole support sheets and two first pole top sheets, the first pole bottom sheet is fixed to the pole of the battery body, the two first pole support sheets are respectively fixed to opposite sides of the first pole bottom sheet, the two first pole top sheets are respectively fixed to the two first pole support sheets, the first pole top sheet extends away from the other first pole top sheet, the first pole support sheet forms a height difference between the first pole top sheet and the first pole bottom sheet, and the first pole top sheet is insulated from the cover plate of the battery body.

[0009] Optionally, the first pole top sheet is parallel to the first pole bottom sheet, and the first pole support sheet is perpendicular to the first pole top sheet or the first pole bottom sheet.

[0010] Optionally, the second pole connecting piece comprises a second pole bottom sheet, a second pole support sheet and a second pole top sheet, the second pole bottom sheet is fixed to the cover plate of the battery body, the second pole support sheet is fixed to one side of the second pole bottom sheet, and the second pole top sheet is fixed to the second pole support sheet, the second pole support sheet forms a height difference between the second pole top sheet and the second pole bottom sheet, and the second pole top sheet is insulated from the pole of the battery body.

[0011] Optionally, the second pole top sheet is parallel to the second pole bottom sheet, and the second pole support sheet is perpendicular to the second pole top sheet or the second pole bottom sheet.

[0012] Optionally, the button cell further comprises an insulation gasket, the insulation gasket is located between the upper surface of the cover plate of the battery body and the lower surface of the protection plate.

[0013] Optionally, the upper surface of the cover plate of the battery body, the lower surface of the protection plate and the insulation gasket form an insulation cavity, the first pole connecting piece and the second pole connecting piece are located in the insulation cavity, and the protection plate is provided with a glue injection through hole, the glue injection through hole is used for the glue injection head of a glue injection device to pass through and inject glue into the insulation cavity.

[0014] Optionally, the button cell further comprises an insulation adhesive tape, the insulation adhesive tape is wrapped on the outer side wall of the battery body and the protection plate and the bottom of the battery body.

[0015] In another aspect, the embodiment of the present application provides an electronic device, which comprises a power consuming device and the button cell as described above, a battery compartment of the power consuming device is provided with a first pole elastic contact point and a second pole elastic contact point, the button cell is installed in the battery compartment of the power consuming device, and the first pole elastic contact point is electrically connected with the first pole leading-out area of the protection plate, and the second pole elastic contact point is electrically connected with the second pole leading-out area of the protection plate.

[0016] The button cell and the electronic device provided by the embodiment of the present application have at least the following beneficial effects compared with the prior art: the electric connection structure of the protection plate and the first pole connecting piece and the second pole connecting piece is arranged, the button cell and the terminal device are quickly disassembled and assembled, the problem of complicated replacement caused by the traditional welding method is avoided, and the advantages of convenient replacement, improved use convenience and reduced maintenance cost are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0018] Figure 1 is a structural schematic diagram of a button cell provided in an embodiment of the present application; Figure 2 is a structural schematic diagram of an internal structure of a button cell provided in an embodiment of the present application; Figure 3 is a structural schematic diagram of a battery body of a button cell provided in an embodiment of the present application; Figure 4 is a structural schematic diagram of an insulating layer of a button cell provided in an embodiment of the present application; Figure 5 is a structural schematic diagram of a positive pole connecting piece of a button cell provided in an embodiment of the present application; Figure 6 is a structural schematic diagram of a negative pole connecting piece of a button cell provided in an embodiment of the present application.

[0019] The reference signs in the description are explained as follows: 100 - button cell, 110 - cell body, 111 - pole, 112 - cover plate, 120 - positive electrode connecting piece, 121 - positive electrode bottom sheet, 122 - positive electrode support sheet, 123 - positive electrode top sheet, 130 - negative electrode connecting piece, 131 - negative electrode bottom sheet, 132 - negative electrode support sheet, 133 - negative electrode top sheet, 140 - protection plate, 141 - positive electrode lead-out area, 142 - negative electrode lead-out area, 143 - glue injection through hole, 150 - insulating layer, 151 - first through hole, 152 - second through hole, 160 - insulating washer, 170 - insulating adhesive tape. DETAILED DESCRIPTION

[0020] In order to make the technical problems solved by the present application, the technical solutions and beneficial effects clearer, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application.

[0021] In the description of the present application, it should be understood that the terms "longitudinal", "radial", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0022] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] In the prior art, button cells are widely used in miniature electronic devices due to their small size, but the traditional structure adopts a wire welding method to connect the pole and the cover plate, which results in the need to remove the old wire and re-weld the new battery when replacing the battery, and the operation process is complicated and there is a risk of damaging the circuit board. For example, in the context of cardiac pacemaker maintenance, frequent welding can affect the device's sealing and increase the maintenance time cost.

[0024] To solve the above problems, researchers found that the irreversible connection of wire welding is the core factor leading to the difficulty of replacement. By analyzing the contact structure of the battery compartment of electronic devices, it is realized that a detachable standardized electrical connection interface needs to be established. Based on this, it is proposed to set up independent connectors outside the battery body 110, which can not only stably conduct with the battery electrodes, but also form a standardized contact area, thereby avoiding welding operations.

[0025] The present embodiment takes the first electrode as the positive electrode and the second electrode as the negative electrode as an example.

[0026] Please refer to Figure 1 , Figure 2 and Figure 3 , the application proposes a button cell 100 including a battery body 110, a positive electrode connector 120, a negative electrode connector 130 and a protection plate 140. The positive electrode connector 120 is fixed to the pole 111 of the battery body 110 and forms an electrical connection, the negative electrode connector 130 is fixed to the cover plate 112 of the battery body 110 and forms an electrical connection, and the protection plate 140 is fixed to the positive and negative electrode connectors at the same time, the positive electrode lead-out area 141 is in conductive with the positive electrode connector 120, and the negative electrode lead-out area 142 is in conductive with the negative electrode connector 130.

[0027] Among them, the battery body 110 refers to a cylindrical energy storage unit containing the positive electrode pole 111 and the negative electrode cover plate 112, which can be realized by adopting lithium ion or alkaline battery structure, as the core component of electrical energy storage. The positive electrode connector 120 refers to the conductive component connected with the pole 111, which can be formed by stamping nickel sheet and fixed by laser welding, used to establish a repeatable conductive path. The negative electrode connector 130 refers to the conductive component connected with the cover plate 112, which can be formed by bending copper-aluminum composite sheet, and is in conductive with the cover plate 112 through riveting, forming a stable current transmission interface. The protection plate 140 refers to an insulating substrate with positive and negative electrode contact areas, which can be made of FR4 material, with copper on the surface to form a conductive area, used as the electrical contact interface between the standardized battery and the external device.

[0028] Specifically, the positive electrode connector 120 is connected with the pole 111 through mechanical fixation, and the negative electrode connector 130 is in conductive with the cover plate 112 through physical contact, both of which extend to the specific area of the protection plate 140. The protection plate 140 as an intermediate carrier, its positive electrode lead-out area 141 is in conductive with the positive electrode connector 120 through conductive glue or welding point, and its negative electrode lead-out area 142 is in conductive with the negative electrode connector 130 through the same way. When the battery is installed in the device, the elastic contact of the device battery compartment directly contacts the positive and negative electrode lead-out areas 142 of the protection plate 140, forming a complete current path. This structure design makes it only need to take out the old battery and put in the new battery when replacing the battery, without any welding operation.

[0029] Compared with the prior art, the traditional scheme relies on wire welding to form a permanent connection, while the present scheme combines with the standardized protection plate 140 through a detachable connecting piece to build a reusable electrical contact interface with the elastic contact of the battery compartment of the terminal product. The prior art needs to destroy the original connection and rebuild a new connection every time it is replaced, while the present scheme realizes plug-and-play non-destructive replacement, significantly reducing the operation complexity.

[0030] Through the above technical scheme, the present application realizes the quick and lossless replacement of the button cell 100, eliminating the influence of welding operation on the equipment circuit. In the maintenance scene of medical equipment, medical staff can directly replace the battery without professional welding tools, which not only guarantees the sealing integrity of the equipment, but also shortens the single maintenance time by about 70%. For consumer electronics product users, this design makes the battery replacement operation as simple as replacing ordinary dry batteries.

[0031] Please refer to Figure 2 and Figure 4 The present application further proposes that the button cell 100 comprises an insulating layer 150, which is laid on the cover plate 112 of the battery body 110, and the insulating layer 150 is provided with a first through hole 151 and a second through hole 152, the first through hole 151 is used for electrical connection between the pole 111 of the battery body 110 and the positive connecting piece 120, and the second through hole 152 is used for electrical connection between the cover plate 112 of the battery body 110 and the negative connecting piece 130.

[0032] Among them, the insulating layer 150 refers to a non-conductive material layer covering the surface of the cover plate 112 of the battery body 110, which can be realized by polyimide film or epoxy resin sheet, and is used to block the direct contact between the positive connecting piece 120 and the cover plate 112. The first through hole 151 refers to a circular hole passing through the insulating layer 150, which can be formed by punching or laser cutting process, and is used to expose the top of the pole 111 to realize the welding conduction of the positive connecting piece 120. The second through hole 152 refers to a rectangular hole distributed separately from the first through hole 151, which can be processed by mold forming, and is used to expose the surface area of the cover plate 112 to realize the fixed conduction of the negative connecting piece 130.

[0033] Specifically, during the assembly of the battery body 110, the insulating layer 150 is preattached to the surface of the cover plate 112, and the first through hole 151 and the second through hole 152 correspond to the position of the pole 111 and the conductive area of the cover plate 112, respectively. When the positive electrode connecting piece 120 is welded to the pole 111, the bottom thereof directly contacts the metal surface of the pole 111 through the first through hole 151, and the insulating layer 150 blocks the potential short circuit path between the positive electrode connecting piece 120 and the cover plate 112. The negative electrode connecting piece 130 is welded to the cover plate 112 through the second through hole 152, and at this time, the insulating layer 150 only retains the contact area between the negative electrode connecting piece 130 and the cover plate 112, and the remaining part still maintains the insulating isolation state.

[0034] Compared with the prior art, the negative cover plate 112 of the conventional button cell 100 is insulatedly connected with the positive pole 111, and the insulating layer 150 is not arranged, and there is a risk of short circuit when the positive electrode connecting piece 120 directly contacts the cover plate 112. The scheme covers the surface of the cover plate 112 with the insulating layer 150, and only the through holes are arranged at necessary positions, thereby guaranteeing the reliable conduction of the positive and negative electrode connecting pieces.

[0035] Through the above technical scheme, the physical isolation between the positive electrode connecting piece 120 and the battery body 110 is realized, the short circuit problem caused by the contact between the positive electrode connecting piece 120 and the cover plate 112 with negative electricity is avoided, and the through hole structure is retained to ensure the electrical connection function. The design simplifies the battery assembly process, enables the connecting piece to be quickly positioned and installed, and does not need to additionally increase the insulating treatment process.

[0036] Please refer to Figure 2 and Figure 5 , the application further proposes that the positive electrode connecting piece 120 of the button cell 100 comprises a positive electrode bottom sheet 121, two positive electrode support sheets 122, and two positive electrode top sheets 123, the positive electrode bottom sheet 121 is fixed to the pole 111 of the battery body 110, the two positive electrode support sheets 122 are respectively fixed to the opposite sides of the positive electrode bottom sheet 121, the two positive electrode top sheets 123 are respectively fixed to the two positive electrode support sheets 122, and the positive electrode top sheet 123 extends away from the other positive electrode top sheet 123, the positive electrode support sheet 122 forms a height difference between the positive electrode top sheet 123 and the positive electrode bottom sheet 121, so that the protective plate 140 is insulated from the pole 111 of the battery body 110, and the positive electrode top sheet 123 is insulated from the pole 111 of the battery body 110, thereby avoiding causing short circuit.

[0037] The positive electrode bottom sheet 121 refers to a metal sheet structure in direct contact with the pole 111 of the battery body 110, which can be realized by stamping nickel alloy, and its function is to conduct the current of the pole 111 to the support sheet. The positive electrode support sheet 122 refers to a metal member perpendicular to the bottom sheet and extending upward, which can be realized by forming an L-shaped structure by bending process, and its function is to provide vertical support force for the top sheet and form a current transmission path. The positive electrode top sheet 123 refers to a horizontally extending metal sheet at the end of the support sheet, which can be realized by laser welding to the top of the support sheet, and its function is to form a detachable elastic contact with the positive electrode lead-out area 141 of the protection plate 140.

[0038] Specifically, the positive electrode bottom sheet 121 is fixed on the surface of the pole 111 by laser welding or conductive adhesive, and the two positive electrode support sheets 122 are symmetrically distributed on both sides of the bottom sheet and form an integral structure with the bottom sheet by stamping process. The positive electrode top sheet 123 extends outward in the form of a cantilever beam, and when the protection plate 140 is installed, the top sheet is elastically deformed under pressure to form stable contact with the positive electrode lead-out area 141 of the protection plate 140. This structure makes the positive electrode connector 120 have independent deformation ability through split design, avoiding poor contact caused by assembly error.

[0039] Compared with the prior art, the traditional scheme directly welds the pole 111 and the protection plate 140 with a single wire, which requires welding points to be damaged when replacing the battery. The combination of the positive electrode bottom sheet 121, the support sheet and the top sheet makes the protection plate 140 form a repeatable mechanical contact with the pole 111, without the need for welding operation to complete the battery replacement.

[0040] Through the above technical scheme, the present application realizes the modular design of the positive electrode connection structure, so that the protection plate 140 can be quickly disassembled without damaging the connector. When replacing the battery, the old battery can be separated by simply moving the protection plate 140 away from the top sheet contact area, and then the top sheet of the new battery is re-aligned and pressed with the protection plate 140, which significantly reduces the operation complexity.

[0041] For details, please refer to Figure 5 The present application further proposes that the positive electrode top sheet 123 is parallel to the positive electrode bottom sheet 121, and the positive electrode support sheet 122 is perpendicular to the positive electrode top sheet 123 or the positive electrode bottom sheet 121.

[0042] The parallel of the positive electrode top sheet 123 and the positive electrode bottom sheet 121 means that the two are kept in the same plane extension relationship, and specifically, the top sheet and the bottom sheet can be processed into plane sheets by stamping forming process to realize the parallel structure, which can increase the contact area with the protection plate 140. The positive electrode support sheet 122 is perpendicular to the top sheet or the bottom sheet, which means that the support sheet forms a right angle bending structure, and specifically, the support sheet and the top sheet or the bottom sheet can form a 90-degree angle to realize the perpendicular structure, which can provide support stiffness for the top sheet.

[0043] Specifically, the positive electrode bottom sheet 121 is fixed on the surface of the pole 111 of the battery body 110 by welding, the two positive electrode support sheets 122 are respectively bent upward from the two sides of the bottom sheet to form a vertical column structure, and the two positive electrode top sheets 123 are respectively extended horizontally from the top ends of the support sheets to form a contact plane parallel to the bottom sheet. For example, the perpendicular bending structure of the support sheet and the top sheet can form a stable three-dimensional frame, so that the top sheet is not easy to deform when bearing external pressure, and the parallel arrangement of the top sheet and the bottom sheet can ensure that the positive electrode lead-out area 141 of the protection plate 140 is in surface contact with the top sheet.

[0044] Compared with the prior art, the positive electrode connecting piece 120 of the traditional button cell 100 is mostly a single plane structure, which is easy to cause poor contact due to uneven stress when the protection plate 140 is installed. By setting the vertical support sheet and the parallel top sheet structure, the mechanical load applied by the protection plate 140 can be dispersed to avoid plastic deformation of the connecting piece, and the stability of current conduction can be improved.

[0045] Through the above technical solution, the positive electrode connecting piece 120 is realized to be three-dimensionally supported in a limited space, and the problem of increased contact resistance caused by the deformation of the traditional plane connecting piece under pressure is solved. For example, the vertical support sheet can effectively resist the lateral extrusion force when the protection plate 140 is installed, and the parallel top sheet can ensure uniform stress on the contact surface with the protection plate 140, thereby maintaining a stable electrical connection state.

[0046] Please refer to Figure 2 and Figure 6 The button cell 100 further includes a negative electrode connecting piece 130, the negative electrode connecting piece 130 includes a negative electrode bottom sheet 131, a negative electrode support sheet 132 and a negative electrode top sheet 133, the negative electrode bottom sheet 131 is fixed to the cover plate 112 of the battery body 110, the negative electrode support sheet 132 is fixed to one side of the negative electrode bottom sheet 131, and the negative electrode top sheet 133 is fixed to the negative electrode support sheet 132. The negative electrode support sheet 132 forms a height difference between the negative electrode top sheet 133 and the negative electrode bottom sheet 131, so that the protection plate 140 is insulated from the cover plate 112 of the battery body 110, and the negative electrode top sheet 133 is insulated from the pole 111 of the battery body 110, which can avoid short circuit.

[0047] The negative electrode bottom sheet 131 refers to a conductive part in direct contact with the cover plate 112 of the battery body 110, which can be fixed by welding or conductive adhesive, and is used to conduct the negative electrode current from the cover plate 112. The negative electrode support sheet 132 refers to a vertical transition structure connecting the negative electrode bottom sheet 131 and the negative electrode top sheet 133, which can be formed by bending a metal sheet, and is used to provide mechanical support and maintain the installation height of the negative electrode top sheet 133. The negative electrode top sheet 133 refers to a conductive part connected to the negative electrode lead-out area 142 of the protection plate 140, which can be a stamped metal sheet, and is used to conduct current to the protection plate 140.

[0048] Specifically, the negative electrode bottom sheet 131 is fixed on the surface of the battery cover plate 112 by welding or conductive adhesive to form a stable electrical connection. The negative electrode support sheet 132 extends vertically from one side of the negative electrode bottom sheet 131 and forms a support structure of a certain height through a bending process. The negative electrode top sheet 133 is fixed on the top of the support sheet and is electrically connected to the negative electrode lead-out area 142 of the protection plate 140 through welding or elastic contact. This layered structure allows the negative electrode connector 130 to form a stable current path in a limited space, while providing a reliable installation basis for the protection plate 140.

[0049] Compared with the prior art, the prior art directly welds a wire on the surface of the cover plate 112, which requires the welding point to be damaged when replacing the battery. The present application uses a split negative electrode connector 130 to form a separable modular structure between the protection plate 140 and the battery body 110, so that only the fixation between the protection plate 140 and the connector needs to be released when replacing the battery, without damaging the original welding point.

[0050] Through the above technical solution, the present application realizes the detachability of the battery negative electrode connection, avoids repeated damage to the welding points of the terminal product during battery replacement, and significantly reduces the operation complexity. The layered support structure also enhances the stability of the connector in a vibrating environment and prevents poor contact caused by mechanical stress.

[0051] Please refer to Figure 1 and Figure 6 The present application further proposes a button cell 100, which includes a battery body 110, a positive electrode connector 120, a negative electrode connector 130, and a protection plate 140. The negative electrode connector 130 includes a negative electrode bottom sheet 131, a negative electrode support sheet 132, and a negative electrode top sheet 133. The negative electrode top sheet 133 is parallel to the negative electrode bottom sheet 131, and the negative electrode support sheet 132 is perpendicular to the negative electrode top sheet 133 or the negative electrode bottom sheet 131.

[0052] The negative electrode top sheet 133 refers to a metal conductive sheet arranged on the top of the support sheet, which can be realized by stamping a nickel alloy, and its plane extension direction is parallel to the negative electrode bottom sheet 131 to form a stable conductive contact surface. The negative electrode bottom sheet 131 refers to a metal substrate fixed on the surface of the battery cover plate 112, which can be realized by laser welding of copper material and serves as the basic carrier for negative electrode current conduction. The negative electrode support sheet 132 refers to a vertical transition structure connecting the bottom sheet and the top sheet, which can be realized by bending a steel strip, and forms a mechanical support and current conduction dual role through a vertical angle.

[0053] Specifically, the negative electrode bottom sheet 131 is fixed on the surface of the battery cover plate 112 by welding, the support sheet extends vertically upward from the edge of the bottom sheet to form a three-dimensional support structure, and the top sheet extends horizontally at the top end of the support sheet in parallel to the bottom sheet. During assembly, the top sheet forms a plane contact with the negative electrode lead-out area 142 of the protection plate 140, and the vertically arranged support sheet can withstand external pressure and keep the position of the top sheet stable. The parallel arrangement of the top sheet and the bottom sheet forms a symmetrical structure, making the current conduction path have directional consistency and avoiding poor contact caused by angle deviation.

[0054] Compared with the prior art, the negative electrode connecting piece 130 of the traditional button cell 100 usually adopts a single-layer sheet structure or a non-vertical support design, which is prone to deformation and contact failure under external pressure. The combination of the vertical support sheet and the parallel top sheet in this scheme forms a three-dimensional support system, which not only maintains stable conductivity but also enhances mechanical strength. The inclined or curved support structure in the prior art leads to a detour of the current path, while the vertical support sheet in this scheme minimizes the electronic conduction path.

[0055] Through the above technical scheme, the structural stability of the negative electrode connecting piece 130 under external impact is realized, and the protection plate 140 and the negative electrode lead-out area 142 always maintain effective contact. The vertical support structure avoids the displacement risk caused by vibration of the traditional plane connecting piece, and the parallel top sheet design maximizes the contact area, effectively reducing the contact resistance. This structure allows reliable connection through simple plug-in operation when replacing the battery, without the need for welding or removing fixed components.

[0056] Please refer to Figure 2 The button cell 100 further includes an insulating gasket 160, which is located between the upper surface of the cover plate 112 of the battery body 110 and the lower surface of the protection plate 140, and the upper surface of the cover plate 112 of the battery body 110, the lower surface of the protection plate 140, and the insulating gasket 160 form an insulating cavity, and the positive electrode connecting piece 120 and the negative electrode connecting piece 130 are located in the insulating cavity.

[0057] The insulating gasket 160 refers to a ring-shaped structure for isolating the electrical contact between the battery body 110 and the protective plate 140, which can be implemented by using a polyimide film or rubber material, and the thickness thereof can range from 0.1 mm to 0.5 mm. By physically isolating the positive electrode connecting piece 120 or the negative electrode connecting piece 130 from the cover plate 112, the short circuit between them can be avoided.

[0058] The insulating cavity refers to a closed space formed by the cover plate 112, the protective plate 140, and the insulating gasket 160, which can be implemented by filling an insulating material such as epoxy resin or silicone through a glue injection process. The insulating cavity is used to completely wrap the positive electrode connecting piece 120 and the negative electrode connecting piece 130, thereby eliminating the interference of the external environment on the electrode connection.

[0059] Specifically, the insulating gasket 160 is pressed between the cover plate 112 and the protective plate 140, and the insulating glue is injected into the insulating cavity through the glue injection hole 143, so that the positive electrode connecting piece 120 and the negative electrode connecting piece 130 are wrapped and fixed by the insulating glue. Since the positive electrode connecting piece 120 and the negative electrode connecting piece 130 are limited in the insulating cavity, the electrical gap between them and the cover plate 112 is maintained, avoiding the risk of electrode contact short circuit caused by vibration or external force. In addition, the curing process of the insulating glue can be realized by adjusting the glue injection pressure to ensure uniform filling and no air bubbles remaining in the insulating cavity.

[0060] Compared with the prior art, the traditional button cell 100 does not have an insulating cavity structure, and the positive and negative electrode connecting pieces are directly exposed to the external environment, which is prone to short circuit caused by foreign matter invasion or mechanical impact. However, the present application realizes the physical fixation of the electrode connection through the insulating cavity and the glue injection process, and forms a double protective barrier through the insulating glue, which significantly improves the safety and reliability of the battery under complex working conditions.

[0061] Through the above technical solutions, the short circuit risk problem of the traditional button cell 100 caused by the exposure of the electrode connecting piece is solved, and the battery assembly process is simplified. The insulating cavity structure enables the electrode connecting piece to form an integrated package after glue injection, without the need for additional welding or insulating wrapping operations, thereby reducing the production complexity and ensuring the stable electrical performance of the battery during repeated replacement or use.

[0062] Please refer to Figure 1 The protective plate 140 is provided with a glue injection hole 143, and the glue injection hole 143 is used for the glue injection head of the glue injection equipment to pass through and inject glue into the insulating cavity.

[0063] The glue injection hole 143 refers to a through-hole structure arranged on the protection plate 140, which can be realized by laser cutting or stamping process. The hole diameter can be adapted to the insertion requirements of different types of glue injection heads, and is used to establish a communication channel between the external glue injection equipment and the insulation cavity. The insulation cavity refers to a closed space surrounded by the upper surface of the cover plate 112, the lower surface of the protection plate 140 and the insulation gasket 160. Liquid insulation material can be injected through the glue injection hole 143 to wrap and fix the positive electrode connecting piece 120 and the negative electrode connecting piece 130, thereby eliminating the risk of internal short circuit.

[0064] Specifically, after the assembly of the positive electrode connecting piece 120 and the negative electrode connecting piece 130 is completed, the glue injection head of the glue injection equipment can directly approach the insulation cavity through the glue injection hole 143 of the protection plate 140. When the liquid insulation glue is injected into the insulation cavity through the glue injection head, the glue spreads uniformly along the inner wall of the cavity, wrapping the exposed conductive parts of the positive electrode connecting piece 120 and the negative electrode connecting piece 130. After injection is completed, the glue solidifies to form an insulation protection layer, effectively isolating the conductive parts from the external environment. For example, the glue injection hole 143 can be circular or elliptical, and its diameter can be 1.5-3.0 mm, which can ensure smooth insertion of the glue injection head and avoid backflow of the glue.

[0065] Compared with the prior art, the insulation treatment of the conventional button cell 100 usually adopts pre-installed insulation sheet or manual coating of glue, which has the problems of uneven coverage and low operation efficiency. The present scheme realizes precise glue injection through the glue injection hole 143, and the glue flows under control in the closed cavity, which not only avoids pollution of the battery surface by the overflow of the glue, but also ensures that the conductive parts are completely covered, significantly improving the insulation reliability.

[0066] Through the above technical scheme, the present application solves the short circuit risk caused by incomplete insulation treatment of the conventional button cell 100, and simplifies the production process. The glue injection hole 143 makes the insulation glue injection process standardizable, and the glue filling amount can be accurately controlled by the glue injection equipment, avoiding the problems of missed coating or excessive coating that easily occur during manual coating, thereby improving the product yield and batch consistency.

[0067] Please refer to Figure 1 and Figure 2 The present application further proposes that the button cell 100 further comprises an insulation glue paper 170, which is wrapped on the outer side wall of the battery body 110 and the protection plate 140 and the bottom of the battery body 110.

[0068] The insulating adhesive paper 170 refers to a flexible thin layer material with electrical insulation performance, which can be implemented by polyimide film or polyester film material, and is fixed on the surface of the battery by heat pressing or adhesive to isolate the conductive components from the external environment. The outer side wall of the battery body 110 and the protection plate 140 and the bottom of the battery body 110 refer to that the insulating adhesive paper 170 covers the side wall of the battery shell, the edge of the protection plate 140 and the bottom area of the battery to form a continuous closed insulation layer 150 to avoid contact between the exposed metal part of the battery and the external conductive object.

[0069] Specifically, the insulating adhesive paper 170 is cut to match the size of the battery shape, and covers the side wall of the battery body 110 and the protection plate 140 by wrapping, and extends to the bottom of the battery for complete wrapping. During installation, the edges of the insulating adhesive paper 170 can be sealed by heat sealing or adhesive process to ensure that the metal shell of the battery, the edge and the bottom of the protection plate 140 are all isolated by the insulating material. This design makes the battery not accidentally contact with other metal parts inside the electronic device during installation or disassembly, thereby avoiding the risk of short circuit.

[0070] In some embodiments, the thickness of the insulating adhesive paper 170 can be controlled in the range of 0.05 mm to 0.2 mm, which not only ensures the insulation performance, but also does not significantly increase the volume of the battery. The joint of the insulating adhesive paper 170 can use overlapping bonding, for example, a 5 mm to 10 mm overlapping area is formed at the edge of the battery bottom to enhance the sealing performance.

[0071] Compared with the prior art, the traditional button cell 100 only relies on the insulation coating or local insulation pad of the battery shell, which is easy to cause insulation failure due to mechanical wear in long-term use. The present scheme forms a physical isolation layer by covering the insulating adhesive paper 170, which not only has a larger coverage area, but also provides additional protection when the battery is subjected to external pressure or friction, and simplifies the assembly process of the insulation structure.

[0072] Through the above technical scheme, the problem that the exposed metal part of the battery is easy to contact with the external conductor to cause short circuit is effectively solved, the safety hidden danger caused by improper operation during battery replacement is reduced, and the insulation reliability of the battery in complex use environment is prolonged. The overall wrapping design of the insulating adhesive paper 170 also avoids the damage of the insulation layer 150 that may be caused by traditional welding of wires, making the battery replacement operation more convenient and safe.

[0073] The application further provides an electronic device, comprising a power-consuming device and a button cell 100, a battery compartment of the power-consuming device is provided with a positive elastic contact and a negative elastic contact, the button cell 100 is installed in the battery compartment of the power-consuming device, and the positive elastic contact is electrically connected with an outer surface of a positive lead-out area 141 of the protection plate 140, and the negative elastic contact is electrically connected with an outer surface of a negative lead-out area 142 of the protection plate 140.

[0074] The positive elastic contact refers to an elastic conductive part, which can be specifically implemented by a spring sheet or a conductive spring sheet, and is used to form stable contact with the outer surface of the positive lead-out area 141 of the protection plate 140 when the button cell 100 is installed in the battery compartment.

[0075] The negative elastic contact refers to an elastic conductive part corresponding to the positive contact, which can be specifically implemented by a metal spring sheet or a spiral spring structure, and is used to maintain continuous conduction with the outer surface of the negative lead-out area 142 of the protection plate 140 after the battery is installed.

[0076] The positive lead-out area 141 and the negative lead-out area 142 of the protection plate 140 refer to the metallized areas on the protection plate 140 which are in conduction with the positive connecting piece 120 and the negative connecting piece 130 respectively, and can be specifically formed by gold plating, nickel plating or welding a conductive layer, and are used to transmit the internal power of the battery to the external contact.

[0077] Specifically, the button cell 100 directly contacts with the elastic contact in the battery compartment through the outer surfaces of the positive and negative lead-out areas of the protection plate 140, without the need for wire welding. When the battery needs to be replaced, the old battery is only taken out from the battery compartment, and then the new battery is placed in the same direction, and the elastic contact automatically contacts and conducts with the lead-out area of the protection plate 140 of the new battery by relying on its own deformation restoring force. The battery compartment structure can be designed as a buckle type or a sliding rail type to ensure that the contact and the lead-out area are aligned after the battery is installed.

[0078] Compared with the prior art, the existing button cell 100 needs to be fixed to the terminal product by wire welding, and when it needs to be replaced, the old battery needs to be disassembled and welded, and the new battery needs to be re-welded, which is complicated and has the risk of damage to the welding points. The present application realizes the plug-and-play of the battery by the direct contact of the elastic contact and the lead-out area of the protection plate 140, avoiding the welding process.

[0079] Through the above technical solutions, the application solves the problem that the button cell 100 needs to be repeatedly welded when it is replaced, simplifies the battery disassembly and installation steps, so that the battery replacement process can be completed without professional tools, and the maintenance efficiency of the electronic device and the user experience are improved.

[0080] The above-described embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A button cell battery, characterized in that, The device includes a battery body, a first electrode connector, a second electrode connector, and a protection plate. The protection plate includes an insulated first electrode outlet area and a second electrode outlet area. The first electrode connector is fixed to and electrically connected to the terminal post of the battery body. The second electrode connector is fixed to and electrically connected to the cover plate of the battery body. The protection plate is fixed to the first electrode connector and the second electrode connector, and the first electrode outlet area is electrically connected to the first electrode connector, and the second electrode outlet area is electrically connected to the second electrode connector.

2. The button cell battery according to claim 1, characterized in that, The button cell battery also includes an insulating layer, which is laid on the cover plate of the battery body. The insulating layer has a first through hole and a second through hole. The first through hole is used for the terminal post of the battery body to be electrically connected to the first electrode connector, and the second through hole is used for the cover plate of the battery body to be electrically connected to the second electrode connector.

3. The button cell battery according to claim 1, characterized in that, The first electrode connector includes a first electrode base plate, two first electrode support plates, and two first electrode top plates. The first electrode base plate is fixed to the electrode post of the battery body. The two first electrode support plates are respectively fixed to opposite sides of the first electrode base plate. The two first electrode top plates are fixed to the two first electrode support plates one-to-one, and the first electrode top plates extend in a direction away from the other first electrode top plate. The first electrode support plates create a height difference between the first electrode top plates and the first electrode base plate, and the first electrode top plates are insulated from the cover plate of the battery body.

4. The button cell battery according to claim 3, characterized in that, The first pole top plate is parallel to the first pole bottom plate, and the first pole support plate is perpendicular to the first pole top plate or the first pole bottom plate.

5. The button cell battery according to claim 1, characterized in that, The second electrode connector includes a second electrode base plate, a second electrode support plate, and a second electrode top plate. The second electrode base plate is fixed to the cover plate of the battery body, the second electrode support plate is fixed to one side of the second electrode base plate, and the second electrode top plate is fixed to the second electrode support plate. The second electrode support plate creates a height difference between the second electrode top plate and the second electrode base plate, and the second electrode top plate is insulated from the terminal post of the battery body.

6. The button cell battery according to claim 5, characterized in that, The second pole top plate is parallel to the second pole bottom plate, and the second pole support plate is perpendicular to the second pole top plate or the second pole bottom plate.

7. The button cell battery according to claim 1, characterized in that, The button cell also includes an insulating gasket located between the upper surface of the cover plate of the battery body and the lower surface of the protective plate.

8. The button cell battery according to claim 7, characterized in that, The upper surface of the cover plate of the battery body, the lower surface of the protective plate, and the insulating gasket form an insulating cavity. The first electrode connector and the second electrode connector are both located in the insulating cavity. The protective plate has an injection hole for the injection head of the injection equipment to pass through and inject adhesive into the insulating cavity.

9. The button cell battery according to claim 1, characterized in that, The button cell also includes insulating tape, which covers the outer wall of the battery body and the protective plate, as well as the bottom of the battery body.

10. An electronic device, characterized in that, The electronic device includes an electrical device and a button cell battery as described in any one of claims 1 to 9. The battery compartment of the electrical device is provided with a first-pole elastic contact and a second-pole elastic contact. The button cell battery is installed in the battery compartment of the electrical device, and the first-pole elastic contact is electrically connected to the outer surface of the first-pole outlet area of ​​the protection plate, and the second-pole elastic contact is electrically connected to the outer surface of the second-pole outlet area of ​​the protection plate.

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