Connection structure, battery structure and terminal device

Abstract

The utility model provides a kind of connecting structure, battery structure and terminal device, the connecting structure includes electrolytic glue, first connecting sheet and at least two second connecting sheets;The second connecting sheet is long strip, and at least two second connecting sheets are interval arranged along first direction;The second connecting sheet is adhered to the side of first connecting sheet by electrolytic glue, and the side of second connecting sheet deviating from first connecting sheet is used to be stacked and adhered to battery compartment;The first connecting sheet is used to be stacked and adhered to battery surface;The electrolytic glue is used to be debonded when the second connecting sheet and the first connecting sheet are connected into conducting loop.The utility model in can adjust the quantity of second connecting sheet according to whole machine design demand, reduce the finished product area of second connecting sheet while guaranteeing the connecting strength of connecting structure, can significantly reduce the waste amount generated in die cutting process, to reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of connection structure technology, and in particular to a connection structure, a battery structure and a terminal device. Background Technology

[0002] In existing technologies, batteries are installed in the battery compartment of terminal devices (such as mobile phones, computers, and other electronic devices) using a connection structure. This connection structure includes a first connecting piece, a second connecting piece, and electrolytic adhesive. The first connecting piece is used to bond the battery and the battery compartment. One of the first and second connecting pieces is a negative electrode film, and the other is a positive electrode film. The first and second connecting pieces are connected by electrolytic adhesive, utilizing the adhesive's stickiness and its electrolytic properties in an electric field to allow for battery assembly and disassembly. However, existing second connecting pieces are generally made of a single piece or are irregularly shaped (e.g., U-shaped, U-shaped, etc.), resulting in a large finished product area, high waste, and high cost. Summary of the Invention

[0003] This utility model provides a connection structure, a battery structure, and a terminal device to solve the problems of large finished product area, high waste discharge, and high cost of the second connecting piece in the existing connection structure.

[0004] A connection structure for battery assembly and disassembly includes an electrolytic adhesive, a first connecting piece, and at least two second connecting pieces. The second connecting piece is elongated, and at least two second connecting pieces are spaced apart along the first direction; The second connecting piece is bonded to one side of the first connecting piece by the electrolytic adhesive, and the side of the second connecting piece facing away from the first connecting piece is used for stacking and bonding to the battery compartment; The first connecting piece is used to be stacked and bonded to the surface of the battery; The electrolytic adhesive is used to untie the second connecting piece and the first connecting piece when they are connected to a conductive circuit.

[0005] Preferably, the second connecting piece includes a second main body portion and a second outer portion connected to the edge of the second main body portion located in the second direction; At least a portion of the first connecting piece is used to be laminated on the first surface of the battery in the thickness direction; The second main body is used to be stacked and bonded to the first connecting piece; The second external portion protrudes from the edge of the first connecting piece located in the second direction; the second external portion is used to bypass the side of the battery and connect to the second surface of the battery in the thickness direction.

[0006] Preferably, the dimension of the second external portion in the first direction is the same as the dimension of the second main body portion in the first direction.

[0007] Preferably, the second external part is at least 3 mm longer than the battery thickness in the second direction, and the second main body is at least one-third the length of the battery in the second direction.

[0008] Preferably, the ratio of the dimension of the second external portion in the second direction to the dimension of the second main body portion in the second direction is 0.6-1.

[0009] Preferably, the electrolytic adhesive has an extended adhesive portion that protrudes from the edge of the first connecting piece in the second direction and is used to bond the second external portion to the side of the battery.

[0010] Preferably, the lengths of any two second connecting pieces are the same or different in the second direction; The widths of any two of the second connecting pieces are the same or different in the first direction.

[0011] Preferably, the first connecting piece includes a first main body portion and a first outer portion disposed on the edge of the first main body portion located in a first direction; At least a portion of the first main body is used to be laminated and bonded to a first surface in the thickness direction of the battery; The first external portion is used to bypass the side of the battery and connect to the second surface of the battery in the thickness direction.

[0012] Preferably, the dimension of the first external portion in the second direction is smaller than the dimension of the first main body portion in the second direction.

[0013] Preferably, the first main body is a square main body and the first external part is a square external part.

[0014] Preferably, the first connecting piece includes a first adhesive layer and a first conductive layer, wherein the first adhesive layer is bonded between the battery and the first conductive layer; The second connecting piece includes a second adhesive layer and a second conductive layer, wherein the second adhesive layer is used to bond the battery compartment and the second conductive layer; The electrolytic adhesive is disposed between the first conductive layer and the second conductive layer.

[0015] Preferably, the connection structure further includes a first release film and a second release film, wherein the first release film is disposed on the side of the first adhesive layer opposite to the first conductive layer, and the second release film is disposed on the side of the second adhesive layer opposite to the second conductive layer.

[0016] A battery structure includes a battery and the aforementioned connection structure, wherein a first connecting piece is stacked and bonded to the surface of the battery.

[0017] A terminal device includes a battery compartment and a battery structure, wherein the battery structure is disposed within the battery compartment, and a second connecting piece is adhered to the battery compartment.

[0018] Preferably, the battery compartment is an insulated battery compartment.

[0019] Compared with the prior art, the connection structure provided by this utility model embodiment can adjust the number of second connecting pieces according to the overall machine design requirements. While ensuring the connection strength of the connection structure, it reduces the finished area of ​​the second connecting pieces, which can significantly reduce the amount of waste generated in the die-cutting process, thereby reducing production costs. When it is necessary to install the battery, the side of the second connecting piece away from the first connecting piece is stacked and bonded to the battery compartment, and the first connecting piece is stacked and bonded to the battery surface. This allows the battery to be installed in the battery compartment through the connection structure. When it is necessary to remove the battery, the electrolytic adhesive is unbonded when the second connecting piece and the first connecting piece are connected into a conductive circuit. Specifically, an electrical device is used to energize each second connecting piece and the first connecting piece, so that each second connecting piece and the first connecting piece form a conductive circuit. At this time, the electrolytic adhesive between each second connecting piece and the first connecting piece can be electrolyzed in the electric field environment, thus unbonding the battery, making it easier to remove the battery from the battery compartment. At the same time, the electrolytic adhesive is melted and no adhesive residue remains in the battery compartment. This can reduce the difficulty of battery installation and removal and improve the efficiency of battery installation and removal. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a bottom view of the connection structure in one embodiment of the present invention; Figure 2 This is a cross-sectional view of the connection structure in one embodiment of the present invention; Figure 3 This is a first cross-sectional view of the terminal device in one embodiment of the present invention; Figure 4 This is a second sectional view of the terminal device in one embodiment of the present invention; Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0022] Among them, 1. Electrolytic adhesive; 11. Extended adhesive part; 2. First connecting piece; 21. First main body part; 22. First external part; 23. First adhesive layer; 24. First conductive layer; 3. Second connecting piece; 31. Second main body part; 32. Second external part; 33. Second adhesive layer; 34. Second conductive layer; 4. Battery; 5. Battery compartment. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0024] In the description of this application, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0026] This utility model embodiment provides a connection structure, see reference Figures 1-5 The connection structure is used for the assembly and disassembly of battery 4, and includes electrolytic adhesive 1, a first connecting piece 2, and at least two second connecting pieces 3; the second connecting pieces 3 are elongated, and at least two second connecting pieces 3 are spaced apart along a first direction; the second connecting pieces 3 are bonded to one side of the first connecting piece 2 by electrolytic adhesive 1, and the side of the second connecting piece 3 facing away from the first connecting piece 2 is used for stacking and bonding to battery compartment 5; the first connecting piece 2 is used for stacking and bonding to the surface of battery 4; the electrolytic adhesive 1 is used to untie the second connecting pieces 3 and the first connecting pieces 2 when they are connected to the conductive circuit.

[0027] The first direction is either the width or length of the battery 4.

[0028] As an example, this connection structure is used for the assembly and disassembly of battery 4, specifically including electrolytic adhesive 1, a first connecting piece 2, and at least two second connecting pieces 3. For example, the first connecting piece 2 is a positive electrode film, and the second connecting piece 3 is a negative electrode film; or, for another example, the first connecting piece 2 is a negative electrode film, and the second connecting piece 3 is a positive electrode film. During manufacturing, the second connecting pieces 3 are elongated, and at least two second connecting pieces 3 are spaced apart along a first direction, for example, two elongated second connecting pieces 3 are spaced apart along the width direction of battery 4. Each second connecting piece 3 is bonded to one side of the first connecting piece 2 with electrolytic adhesive 1, so that electrolytic adhesive 1, the first connecting piece 2, and at least two second connecting pieces 3 are assembled into a connection structure. Compared with the prior art, the number of second connecting pieces 3 can be adjusted according to the overall design requirements, reducing the finished area of ​​the second connecting pieces 3 while ensuring the connection strength of the connection structure. This can significantly reduce the amount of waste generated in the die-cutting process, thereby reducing production costs and achieving weight reduction and cost reduction in the battery structure. When battery 4 needs to be installed, the side of the second connecting piece 3 facing away from the first connecting piece 2 is stacked and bonded to the battery compartment 5, and the first connecting piece 2 is stacked and bonded to the surface of battery 4. This allows battery 4 to be installed inside the battery compartment 5 via a connecting structure. When battery 4 needs to be removed, the electrolytic adhesive 1 unbonds when the second connecting piece 3 and the first connecting piece 2 are connected in a conductive circuit. Specifically, an electrical device is used to energize each second connecting piece 3 and the first connecting piece 2, forming a conductive circuit. At this time, the electrolytic adhesive 1 between each second connecting piece 3 and the first connecting piece 2 can be electrolyzed and unbonded in the electric field environment, making it easier to remove battery 4 from the battery compartment 5. Simultaneously, the electrolytic adhesive 1 is melted, leaving no residue inside the battery compartment 5. This reduces the difficulty of installing and removing battery 4 and improves the efficiency of battery installation and removal. Both the first connecting piece 2 and the second connecting piece 3 are metal films, such as aluminum films.

[0029] In one embodiment, reference is made to Figure 1 and Figure 4 The second connecting piece 3 includes a second main body portion 31 and a second external portion 32 connected to the edge of the second main body portion 31 in the second direction; at least a portion of the first connecting piece 2 is used to be laminated on the first surface in the thickness direction of the battery 4; the second main body portion 31 is used to be laminated and bonded to the first connecting piece 2; the second external portion 32 protrudes from the edge of the first connecting piece 2 in the second direction; the second external portion 32 is used to bypass the side of the battery 4 and connect to the second surface in the thickness direction of the battery 4.

[0030] The second direction is perpendicular to the first direction, and the second direction is the length or width direction of the battery 4.

[0031] As an example, the second connecting piece 3 is a continuous sheet structure, including a second main body portion 31 and a second outer portion 32. The second outer portion 32 is a part of the second connecting piece 3 that connects to the edge of the second main body portion 31 located in the second direction. Alternatively, the second connecting piece 3 is a composite structure, including a second main body portion 31 and a second outer portion 32. The second outer portion 32 is a component that connects to the edge of the second main body portion 31 located in the second direction. During manufacturing, the second main body portion 31 is stacked and bonded to the first connecting piece 2, thereby assembling the first connecting piece 2 and the second connecting piece 3 into a connecting structure.

[0032] When it is necessary to install the battery 4, at least a portion of the first connecting piece 2 is used to be stacked on the first surface of the battery 4 in the thickness direction, and the second external part 32 protrudes from the edge of the first connecting piece 2 in the second direction; the second main body part 31 is stacked and bonded to the battery compartment 5 on the side away from the first connecting piece 2, and the second external part 32 bypasses the side of the battery 4 and is connected to the second surface of the battery 4 in the thickness direction. In this way, the battery 4 is installed in the battery compartment 5 through the connecting structure. When it is necessary to remove the battery 4, it is convenient to connect the second external part 32 to the external circuit to form a conductive circuit, so that the electrolytic adhesive 1 can be unbonded, which provides convenience for the installation and removal of the battery 4.

[0033] In one embodiment, reference is made to Figure 1 and Figure 3 The dimensions of the second external portion 32 in the first direction are the same as those of the second main body portion 31 in the first direction.

[0034] As an example, the dimensions of the second external portion 32 in the first direction are the same as those of the second main body portion 31 in the first direction. This arrangement makes the second external portion 32 and the second main body portion 31 more uniform and consistent in appearance, improving the overall aesthetics of the product. Within a limited space, a consistent size design helps to more rationally plan the positions of each component, avoiding space waste or unreasonable layout caused by size differences. When the dimensions of the second external portion 32 and the second main body portion 31 are the same in the first direction, the force can be more evenly distributed on the two components when subjected to external forces, reducing local stress concentration. The second connecting piece 3 can adopt a continuous sheet structure, simplifying the structure and processing.

[0035] In one embodiment, reference is made to Figure 1 and Figure 4 The second external part 32 is more than 3 mm longer than the thickness of the battery 4 in the second direction, and the second main body part 31 is greater than or equal to one-third of the length of the battery 4 in the second direction.

[0036] As an example, the second external portion 32 is at least 3mm longer than the thickness of the battery 4 in the second direction. When the battery is installed in the battery compartment, the second external portion 32 can be extended from the side of the battery, exposing its end. When the battery 4 needs to be replaced, the exposed end of the second external portion 32 is connected to the external circuit to release the electrolytic adhesive 1. In addition, the exposed end of the second external portion 32 can serve as an operating handle, making it convenient for the user to grasp and remove the battery 4. Compared to designs with similar dimensions to the battery 4, this design makes it easier and more convenient for the user to replace the battery 4, especially for devices with limited space where the battery 4 is installed deep. The second main body 31 is at least one-third the length of the battery 4 in the second direction, providing a sufficiently large connection area between the second main body 31 and the battery 4, thereby enhancing the connection performance between the second main body 31 and the battery 4.

[0037] In one embodiment, reference is made to Figure 1 and Figure 4 The ratio of the dimension of the second external portion 32 in the second direction to the dimension of the second main body portion 31 in the second direction is 0.6-1.

[0038] As an example, the ratio of the dimension of the second outer portion 32 in the second direction to the dimension of the second main body portion 31 in the second direction is 0.6-1. This arrangement ensures that the dimensions of the second outer portion 32 and the second main body portion 31 are relatively coordinated in the second direction. When the second connecting piece 3 is subjected to external force, this coordinated dimensional relationship allows the force to be distributed more evenly between the second outer portion 32 and the second main body portion 31, thereby improving the resistance to damage of the second connecting piece 3 and enhancing its stability.

[0039] In one embodiment, reference is made to Figure 4 and Figure 5 The electrolytic adhesive 1 has an extended adhesive portion 11 that protrudes from the edge of the first connecting piece 2 in the second direction and is used to bond the second external part 32 to the side of the battery 4.

[0040] As an example, the electrolytic adhesive 1 has an extended adhesive portion 11 that protrudes from the edge of the first connecting piece 2 in the second direction, specifically protruding from the edge of the first main body 21 in the second direction, and is used to bond the second external portion 32 to the side of the battery 4. This allows the extended adhesive portion 11 to be positioned between the battery 4 and the second external portion 32. By covering the outer side of the cut edge of the first main body 21 of the first connecting piece 2 with the extended adhesive portion 11, an insulating barrier structure is formed using the insulating properties of the electrolytic adhesive 1, achieving physical isolation between the first connecting piece 2 and the second connecting piece 3, effectively solving the risk of short circuits. Furthermore, each second external portion 32 is also bonded to the surface of the battery 4 exposed in the battery compartment (such as the surface of the battery 4 away from the battery compartment 5) using the electrolytic adhesive 1 or conventional double-sided adhesive. This effectively fixes the second external portion 32, further preventing the second external portion 32 from contacting the first connecting piece 2 and causing a short circuit.

[0041] In one embodiment, the lengths of any two second connecting pieces 3 may be the same or different in the second direction; the widths of any two second connecting pieces 3 may be the same or different in the first direction. Figure 1 In the middle, the two second connecting pieces 3 have different lengths in the second direction, and the two second connecting pieces 3 have the same width in the first direction.

[0042] As an example, the shape and size of any two second connecting pieces 3 are introduced. The lengths of any two second connecting pieces 3 in the second direction can be the same or different; the widths of any two second connecting pieces 3 in the first direction can be the same or different. The shape and size of any two second connecting pieces 3 can be designed according to actual needs to improve its applicability.

[0043] In one embodiment, reference is made to Figure 1 and Figure 3 The first connecting piece 2 includes a first main body portion 21 and a first external portion 22 disposed on the edge of the first main body portion 21 in a first direction; at least a portion of the first main body portion 21 is used to be laminated and bonded to a first surface in the thickness direction of the battery 4; the first external portion 22 is used to bypass the side of the battery 4 and connect to a second surface in the thickness direction of the battery 4.

[0044] As an example, the first connecting piece 2 is a continuous sheet structure, including a first main body 21 and a first external part 22. The first external part 22 is a portion of the first connecting piece 2 connected to the edge of the first main body 21 located in the first direction. Alternatively, the first connecting piece 2 is a combined structure, including a first main body 21 and a second external part 32. The second external part 32 is a component connected to the edge of the second main body 31 located in the first direction. During installation, at least a portion of the first main body 21 is stacked and bonded to the first surface in the thickness direction of the battery 4. The first external part 22 bypasses the side of the battery 4 and is connected to the second surface in the thickness direction of the battery 4. This allows the first connecting piece 2 of the connecting structure to be securely installed on the battery 4, so that the battery 4 can be installed in the battery compartment 5 through the connecting structure. When it is necessary to remove the battery 4, it is convenient to connect the first external part 22 to the external circuit to form a conductive circuit, so that the electrolytic adhesive 1 can be unbonded, providing convenience for the installation and removal of the battery 4.

[0045] In one embodiment, reference is made to Figure 1 The dimension of the first external portion 22 in the second direction is smaller than the dimension of the first main body portion 21 in the second direction.

[0046] As an example, the size of the first external part 22 in the second direction is smaller than the size of the first main body part 21 in the second direction. With this configuration, the larger size of the first main body part 21, which is the main load-bearing part of the connection structure, can provide more reliable connection performance. The smaller size of the first external part 22 can directly reduce the amount of material used, reduce manufacturing costs, and achieve weight reduction and cost reduction of the battery structure.

[0047] In one embodiment, reference is made to Figure 1 The first main body 21 is a square main body, and the first external part 22 is a square external part.

[0048] As an example, the first main body 21 is a square main body, and the first outer connecting part 22 is a square outer connecting part. The design of the square structure is relatively simple because its regular shape eliminates the need for complex curved or inclined surface designs, reducing manufacturing difficulty and cost. The square connection structure has strong compatibility and can be connected to various types of batteries 4. This compatibility makes the square connection structure more flexible in the upgrading and expansion of the battery system, reducing system modification costs and risks.

[0049] In one embodiment, reference is made to Figure 2 , Figure 3 , Figure 4 and Figure 5The first connecting piece 2 includes a first adhesive layer 23 and a first conductive layer 24. The first adhesive layer 23 is bonded between the battery 4 and the first conductive layer 24. The second connecting piece 3 includes a second adhesive layer 33 and a second conductive layer 34. The second adhesive layer 33 is used to bond between the battery compartment 5 and the second conductive layer 34. Electrolytic adhesive 1 is disposed between the first conductive layer 24 and the second conductive layer 34.

[0050] As an example, the first connecting piece 2 includes a first adhesive layer 23 and a first conductive layer 24, and the second connecting piece 3 includes a second adhesive layer 33 and a second conductive layer 34. During installation, electrolytic adhesive 1 is placed between the first conductive layer 24 and the second conductive layer 34 to connect the first connecting piece 2 and the second connecting piece 3 together to form a connection structure. The first adhesive layer 23 is bonded between the battery 4 and the first conductive layer 24 to install the connection structure on the battery 4. The second adhesive layer 33 is bonded between the battery compartment 5 and the second conductive layer 34 to install the battery 4 in the battery compartment 5 through the connection structure. When it is necessary to remove battery 4, an electrical device is used to energize each second connecting piece 3 and the first connecting piece 2, so that each second connecting piece 3 and the first connecting piece 2 form a conductive circuit. At this time, the electrolytic adhesive 1 between each second connecting piece 3 and the first connecting piece 2 can be electrolyzed and de-adheded in the electric field environment, thereby making it easier to remove battery 4 from battery compartment 5. At the same time, the electrolytic adhesive 1 is melted and no adhesive residue remains in battery compartment 5. This can reduce the difficulty of installing and removing battery 4 and improve the efficiency of battery 4 installation and removal.

[0051] In one embodiment, the connection structure further includes a first release film and a second release film, wherein the first release film is disposed on the side of the first adhesive layer 23 opposite to the first conductive layer 24, and the second release film is disposed on the side of the second adhesive layer 33 opposite to the second conductive layer 34.

[0052] As an example, the connection structure also includes a first release film and a second release film. When the connection structure is not used, the first release film is placed on the side of the first adhesive layer 23 away from the first conductive layer 24, and the second release film is placed on the side of the second adhesive layer 33 away from the second conductive layer 34. With this arrangement, the release film acts as a temporary protective layer, which can effectively prevent dust, moisture, oil and other contaminants from contacting the adhesive layer (first adhesive layer 23, second adhesive layer 33) and the conductive layer (first conductive layer 24, second conductive layer 34), preventing the adhesive layer from becoming less viscous or its conductivity from deteriorating, and preventing the conductive layer from being affected by scratches or corrosion, thus preventing signal transmission or current conduction. When the connection structure is used, the first release film and the second release film are separated, and the first adhesive layer 23 and the second adhesive layer 33 are then bonded to the battery and the battery compartment, respectively.

[0053] This utility model provides a battery structure, as shown in the following embodiment. Figures 1-5 It includes a battery 4 and a connecting structure, wherein the first connecting piece 2 is stacked and bonded to the surface of the battery 4.

[0054] As an example, the battery structure includes a battery 4 and a connection structure for assembling and disassembling the battery 4. Specifically, the connection structure includes an electrolytic adhesive 1, a first connecting piece 2, and at least two second connecting pieces 3. When the battery 4 needs to be installed, the second connecting pieces 3 are stacked and bonded to the battery compartment 5 with the side facing away from the first connecting piece 2, and the first connecting pieces 2 are stacked and bonded to the surface of the battery 4. This allows the battery 4 to be installed in the battery compartment 5 via the connection structure. When the battery 4 needs to be disassembled, the electrolytic adhesive 1 unbonds when the second connecting pieces 3 and the first connecting pieces 2 are connected in a conductive circuit. Specifically, an electrical device is used to energize each second connecting piece 3 and the first connecting piece 2, forming a conductive circuit. At this time, the electrolytic adhesive 1 between each second connecting piece 3 and the first connecting piece 2 can be electrolyzed in the electric field environment, causing it to unbond. This facilitates the removal of the battery 4 from the battery compartment 5, and the electrolytic adhesive 1 is melted, leaving no residue in the battery compartment 5. This reduces the difficulty of installing and disassembling the battery 4 and improves the efficiency of battery assembly and disassembly.

[0055] This utility model provides a terminal device, as shown in the following embodiment. Figures 1-5 The terminal device includes a battery compartment 5 and a battery structure. The battery structure is located inside the battery compartment 5, and the second connecting piece 3 is bonded to the battery compartment 5.

[0056] As an example, the terminal device includes a battery compartment 5 and a battery structure, the battery structure including a battery 4 and a connection structure for assembling and disassembling the battery 4, specifically including an electrolytic adhesive 1, a first connecting piece 2 and at least two second connecting pieces 3. When battery 4 needs to be installed, the second connecting piece 3 is stacked and bonded to the battery compartment 5 on the side opposite to the first connecting piece 2, and the first connecting piece 2 is stacked and bonded to the surface of battery 4. This allows battery 4 to be installed in battery compartment 5 through the connecting structure. When battery 4 needs to be removed, the electrolytic adhesive 1 is unbonded when the second connecting piece 3 and the first connecting piece 2 are connected in a conductive circuit. Specifically, an electrical device is used to energize each second connecting piece 3 and the first connecting piece 2, so that each second connecting piece 3 and the first connecting piece 2 forms a conductive circuit. At this time, the electrolytic adhesive 1 between each second connecting piece 3 and the first connecting piece 2 can be electrolyzed in the electric field environment, thus unbonding, making it easier to remove battery 4 from battery compartment 5. At the same time, the electrolytic adhesive 1 is melted and no adhesive residue remains in battery compartment 5. This reduces the difficulty of installing and removing battery 4 and improves the efficiency of battery 4 installation and removal.

[0057] In one embodiment, the battery compartment 5 is an insulated battery compartment.

[0058] As an example, battery compartment 5 is an insulated battery compartment, which enables weight and cost reduction in the terminal device and effectively isolates battery 4 from external metal components or conductive environments, preventing short circuits caused by damage to battery compartment 5, improper installation, or intrusion of external conductive substances. The arc resistance of the insulated battery compartment can prevent the spread of arcs, preventing fires or explosions. The insulated battery compartment can reduce the parasitic capacitance and inductance between battery 4 and the external environment, reducing signal interference and energy loss. The insulating material typically has low thermal conductivity, which can reduce heat exchange between battery 4 and the external environment, preventing localized overheating or overcooling. The insulating material (such as polycarbonate and polyamide) has excellent chemical corrosion resistance, resisting electrolyte leakage from battery 4, salt spray or moisture corrosion in the environment, extending the service life of the battery compartment.

[0059] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A connection structure for assembling and disassembling a battery, characterized in that, Includes electrolytic adhesive, a first connecting piece, and at least two second connecting pieces; The second connecting piece is elongated, and at least two second connecting pieces are spaced apart along the first direction; The second connecting piece is bonded to one side of the first connecting piece by the electrolytic adhesive, and the side of the second connecting piece facing away from the first connecting piece is used for stacking and bonding to the battery compartment; The first connecting piece is used to be stacked and bonded to the surface of the battery; The electrolytic adhesive is used to untie the second connecting piece and the first connecting piece when they are connected to a conductive circuit.

2. The connection structure according to claim 1, characterized in that, The second connecting piece includes a second main body portion and a second external portion connected to the edge of the second main body portion located in the second direction; At least a portion of the first connecting piece is used to be laminated on the first surface of the battery in the thickness direction; The second main body is used to be stacked and bonded to the first connecting piece; The second external portion protrudes from the edge of the first connecting piece located in the second direction; the second external portion is used to bypass the side of the battery and connect to the second surface of the battery in the thickness direction.

3. The connection structure according to claim 2, characterized in that, The dimensions of the second external portion in the first direction are the same as the dimensions of the second main body portion in the first direction.

4. The connection structure according to claim 3, characterized in that, The second external part is more than 3 mm longer than the battery thickness in the second direction, and the second main body is greater than or equal to one-third of the battery length in the second direction.

5. The connection structure according to claim 4, characterized in that, The ratio of the dimension of the second external part in the second direction to the dimension of the second main body part in the second direction is 0.6-1.

6. The connection structure according to claim 2, characterized in that, The electrolytic adhesive has an extended adhesive portion that protrudes from the edge of the first connecting piece in the second direction and is used to bond the second external portion to the side of the battery.

7. The connection structure according to claim 1, characterized in that, The lengths of any two of the second connecting pieces are the same or different in the second direction; The widths of any two of the second connecting pieces are the same or different in the first direction.

8. The connection structure according to claim 1, characterized in that, The first connecting piece includes a first main body portion and a first outer portion disposed on the edge of the first main body portion located in a first direction; At least a portion of the first main body is used to be laminated and bonded to a first surface in the thickness direction of the battery; The first external portion is used to bypass the side of the battery and connect to the second surface of the battery in the thickness direction.

9. The connection structure according to claim 8, characterized in that, The dimension of the first external portion in the second direction is smaller than the dimension of the first main body portion in the second direction.

10. The connection structure according to claim 8, characterized in that, The first main body is a square main body, and the first external part is a square external part.

11. The connection structure according to claim 1, characterized in that, The first connecting piece includes a first adhesive layer and a first conductive layer, wherein the first adhesive layer is bonded between the battery and the first conductive layer; The second connecting piece includes a second adhesive layer and a second conductive layer, wherein the second adhesive layer is used to bond the battery compartment and the second conductive layer; The electrolytic adhesive is disposed between the first conductive layer and the second conductive layer.

12. The connection structure according to claim 11, characterized in that, The connection structure further includes a first release film and a second release film. The first release film is disposed on the side of the first adhesive layer opposite to the first conductive layer, and the second release film is disposed on the side of the second adhesive layer opposite to the second conductive layer.

13. A battery structure, characterized in that, Includes a battery and the connection structure as described in any one of claims 1-11, wherein the first connecting piece is stacked and bonded to the surface of the battery.

14. A terminal device, characterized in that, The terminal device includes a battery compartment and a battery structure as described in any one of claims 1-13, wherein the battery structure is disposed within the battery compartment, and the second connecting piece is adhered to the battery compartment.

15. A terminal device according to claim 14, characterized in that, The battery compartment is an insulated battery compartment.

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