Battery connection structure and mobile device

Abstract

The application relates to the technical field of mobile devices, and discloses a battery connecting structure and a mobile device. The connecting structure comprises a first adhesive component, the first adhesive component comprising a first conductive substrate, the first conductive substrate comprising opposite first and second ends, and the first end wall being adapted to be fixedly connected with the bottom wall of a battery compartment; a second adhesive component, the second adhesive component comprising a second conductive substrate, the second conductive substrate comprising third and fourth ends, and the third end wall being adapted to be fixedly connected with a battery; one of the second end wall and the fourth end wall is provided with an electrically-reduced adhesive layer, and the other is adhesively connected with the electrically-reduced adhesive layer. Thus, through cooperation of the first adhesive component and the second adhesive component, in the process of replacing the battery of the mobile device, the adhesion strength of the electrically-reduced adhesive layer between the first adhesive component and the second adhesive component can be reduced by electrifying the first adhesive component and the second adhesive component, so that the battery can be more easily taken out from the battery compartment.

Description

Technical Field

[0001] This application relates to the field of mobile device technology, and in particular to a battery connection structure and a mobile device having the battery connection structure. Background Technology

[0002] In related technologies, as mobile devices (such as mobile phones and tablets) become increasingly thinner, their batteries are also becoming thinner, and these batteries are attached to the battery compartment on the back of the mobile device. When replacing the battery in a mobile device, using tools such as tweezers to remove the battery can easily cause it to bend or be punctured due to the sharp surfaces of the tools and the thinness of the battery, resulting in battery damage and increasing the maintenance cost of the mobile device. Utility Model Content

[0003] The purpose of this application is to reduce the connection strength between the battery and the battery compartment when replacing the battery in a mobile device, thereby reducing the difficulty of removing the battery from the battery compartment, preventing the battery from being bent or punctured, thus avoiding battery damage and reducing the maintenance cost of the mobile device.

[0004] To achieve the above objectives, this application provides a battery connection structure.

[0005] This application further provides a mobile device.

[0006] The battery connection structure according to this application is applicable to mobile devices, the mobile devices including a battery and a battery compartment for mounting the battery. The connection structure includes: a first adhesive component, the first adhesive component including a first conductive substrate, the first conductive substrate including a first end near the bottom wall of the battery compartment and a second end away from the bottom wall of the battery compartment along the thickness direction of the first adhesive component, the first end wall being adapted to be fixedly connected to the bottom wall of the battery compartment; a second adhesive component, the second adhesive component including a second conductive substrate, the second conductive substrate including a third end near the battery and a fourth end away from the battery along the thickness direction of the second adhesive component, the third end wall being adapted to be fixedly connected to the battery; one of the second end wall and the fourth end wall is provided with an electro-adhesive layer, and the other end wall of the second end wall and the fourth end wall is bonded to the electro-adhesive layer, the adhesive strength of the electro-adhesive layer being weakened or strengthened by energizing or de-energizing the first conductive substrate and the second conductive substrate.

[0007] According to the battery connection structure of this application, by fixing the first adhesive component to the bottom wall of the battery compartment and the second adhesive component to the battery, and providing an electro-adhesive layer between the first adhesive component and the second adhesive component, during the battery replacement process of the mobile device, by energizing the first adhesive component and the second adhesive component, the adhesive strength of the electro-adhesive layer can be reduced, which can reduce the connection strength between the battery and the battery compartment when the mobile device replaces the battery. Compared with the prior art, the connection structure of this application can reduce the difficulty of removing the battery from the battery compartment, thereby preventing the battery from being bent or punctured, thus avoiding battery damage and reducing the maintenance cost of the mobile device.

[0008] In some examples of this application, the circumferential edge of the first conductive substrate is provided with a first conductive terminal, the first conductive terminal extends along a first direction toward a direction away from the first conductive substrate, and the first conductive terminal extends to the outer periphery of the battery; and / or, the circumferential edge of the second conductive substrate is provided with a second conductive terminal, the second conductive terminal extends along a second direction toward a direction away from the second conductive substrate, and the second conductive terminal extends to the outer periphery of the battery; wherein, the first direction is perpendicular to the thickness direction of the first adhesive component, and the second direction is perpendicular to the thickness direction of the second adhesive component.

[0009] In some examples of this application, the first conductive substrate is provided with the first conductive terminal, the second conductive substrate is provided with the second conductive terminal, and the first conductive terminal and the second conductive terminal are spaced apart along the circumferential direction of the first adhesive component.

[0010] In some examples of this application, the electro-adhesive layer is disposed on the second end wall, and the first adhesive assembly further includes a first substrate layer. The first substrate layer is fixed to the first end wall so that the first conductive substrate and the bottom wall of the battery compartment are mutually insulated and spaced apart. The first substrate layer has a first insulating portion, which is disposed opposite to the first conductive terminal along the thickness direction of the first adhesive assembly.

[0011] In some examples of this application, the first adhesive component further includes a first adhesive layer, which is fixed to the side of the first substrate layer near the bottom wall of the battery compartment, and the first adhesive layer is bonded to the bottom wall of the battery compartment.

[0012] In some examples of this application, the first adhesive layer is constructed as a pressure-sensitive adhesive layer.

[0013] In some examples of this application, the electro-adhesive layer is disposed on the second end wall, and the second adhesive assembly further includes a second substrate layer, which is fixed to the third end wall so that the second conductive substrate and the battery are mutually insulated and spaced apart, and the second substrate layer has a second insulating portion, which is disposed opposite to the second conductive terminal along the thickness direction of the second adhesive assembly.

[0014] In some examples of this application, the second adhesive component further includes a second adhesive layer, which is fixed to the side of the second substrate layer near the battery and is bonded to the battery.

[0015] In some examples of this application, the second adhesive layer is constructed as a weak adhesive layer.

[0016] The mobile device according to this application includes the aforementioned battery connection structure.

[0017] According to the mobile device of this application, the mobile device is provided with a connection structure. By fixing a first adhesive component of the connection structure to the bottom wall of the battery compartment and fixing a second adhesive component to the battery, and providing an electro-adhesive layer between the first adhesive component and the second adhesive component, during the battery replacement process of the mobile device, by energizing the first adhesive component and the second adhesive component, the adhesive strength of the electro-adhesive layer can be reduced, thereby reducing the connection strength between the battery and the battery compartment when the mobile device replaces the battery. Compared with the prior art, the connection structure of this application can reduce the difficulty of removing the battery from the battery compartment, thereby preventing the battery from being bent or punctured, thus avoiding battery damage and reducing the maintenance cost of the mobile device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the connection structure of this application embodiment disposed between the bottom wall of the battery compartment and the battery;

[0019] Figure 2 This is a front view of the first adhesive component according to an embodiment of this application;

[0020] Figure 3 This is a front view of the second adhesive component according to an embodiment of this application.

[0021] In the diagram, 100 is the connecting structure; 200 is the battery; and 300 is the bottom wall of the battery compartment.

[0022] 1. First adhesive assembly; 11. First conductive substrate; 12. First end; 13. Second end; 14. First conductive terminal; 15. First substrate layer; 16. First insulating portion; 17. First adhesive layer;

[0023] 2. Second adhesive assembly; 21. Second conductive substrate; 22. Third end; 23. Fourth end; 24. Second conductive terminal; 25. Second substrate layer; 26. Second insulating portion; 27. Second adhesive layer;

[0024] 3. Electro-adhesive layer 3. Detailed Implementation

[0025] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.

[0026] like Figures 1-3 As shown in the figure, a connection structure 100 for a battery 200 is provided in an embodiment of this application. The connection structure 100 is applicable to a mobile device, such as a mobile phone or a tablet computer. The mobile device includes a battery compartment and a battery 200. The battery compartment is located inside the outer shell of the mobile device, and the battery 200 is fixedly installed inside the battery compartment. The connection structure 100 of this application is installed between the battery compartment and the battery 200, and the battery 200 is fixedly connected to the bottom wall 300 of the battery compartment through the connection structure 100.

[0027] like Figures 1-3 As shown, the connection structure 100 according to an embodiment of this application includes: a first adhesive component 1 and a second adhesive component 2. The first adhesive component 1 includes a first conductive substrate 11, which is capable of conducting electricity. Along the thickness direction of the first adhesive component 1, the first conductive substrate 11 includes a first end 12 near the bottom wall 300 of the battery compartment and a second end 13 away from the bottom wall 300 of the battery compartment. The end wall of the first end 12 is adapted to be fixedly connected to the bottom wall 300 of the battery compartment. It should be noted that the thickness direction of the first adhesive component 1 can refer to... Figure 2 The up and down directions in the middle.

[0028] The second adhesive component 2 includes a second conductive substrate 21, which is capable of conducting electricity. In some specific embodiments, both the first conductive substrate 11 and the second conductive substrate 21 can be constructed as metal foil (e.g., aluminum foil) or metal plating (e.g., electroplated aluminum). Along the thickness direction of the second adhesive component 2, the second conductive substrate 21 includes a third end 22 near the battery 200 and a fourth end 23 away from the battery 200. The end wall of the third end 22 is adapted to be fixedly connected to the battery 200. It should be noted that the thickness direction of the second adhesive component 2 can refer to... Figure 3 The thickness direction of the first adhesive component 1 is consistent with the thickness direction of the second adhesive component 2, and the first adhesive component 1 and the second adhesive component 2 can be stacked together.

[0029] An electro-adhesive layer 3 is provided on one of the end walls of the second end 13 of the first conductive substrate 11 and the fourth end 23 of the second conductive substrate 21, and the other end wall of the second end 13 and the fourth end 23 are bonded to the electro-adhesive layer 3. That is, the second end 13 of the first conductive substrate 11 is provided with an electro-adhesive layer 3, and the fourth end 23 of the second conductive substrate 21 is bonded to the electro-adhesive layer 3, or the fourth end 23 of the second conductive substrate 21 is provided with an electro-adhesive layer 3, and the second end 13 of the first conductive substrate 11 is bonded to the electro-adhesive layer 3.

[0030] By applying or de-energizing the first conductive substrate 11 and the second conductive substrate 21, the adhesive strength of the electro-adhesive layer 3 can be weakened or enhanced. Specifically, when the first conductive substrate 11 and the second conductive substrate 21 are de-energized, the electro-adhesive layer 3 possesses the high adhesive strength of conventional pressure-sensitive adhesives, which can reliably bond the first adhesive component 1 and the second adhesive component 2 together, thereby allowing the battery 200 to be securely installed in the battery compartment via the connection structure 100.

[0031] When the first conductive substrate 11 and the second conductive substrate 21 are energized, for example, when the first conductive substrate 11 is connected to the positive terminal of the power supply and the second conductive substrate 21 is connected to the negative terminal of the power supply, the power supply, the first conductive substrate 11, the electro-adhesive layer 3, and the second conductive substrate 21 form a closed circuit structure. Electrochemical oxidation-reduction reaction or interface charge migration occurs inside the electro-adhesive layer 3, thereby reducing the adhesive strength of the electro-adhesive layer 3. During the replacement of the battery 200 in the mobile device, by energizing the first adhesive component 1 and the second adhesive component 2, the adhesive strength of the electro-adhesive layer 3 can be reduced, which can reduce the connection strength between the battery 200 and the battery compartment when the battery 200 is replaced in the mobile device. Compared with the prior art, the connection structure 100 of this application can reduce the difficulty of removing the battery 200 from the battery compartment, thereby preventing the battery 200 from being bent or punctured, thus avoiding damage to the battery 200 and reducing the maintenance cost of the mobile device.

[0032] It should be understood that the electro-adhesive material used in the electro-adhesive layer 3 has been described in detail in the prior art and will not be elaborated here.

[0033] like Figure 1 , Figure 2As shown, in some embodiments of this application, a first conductive terminal 14 may be provided on the circumferential edge of the first conductive substrate 11. The first conductive terminal 14 extends along a first direction away from the first conductive substrate 11 and extends to the outer periphery of the battery 200. The first direction is perpendicular to the thickness direction of the first adhesive component 1. The first direction may be the radial direction of the first conductive substrate 11, i.e., the length direction or width direction of the first conductive substrate 11. By providing the first conductive terminal 14 on the first conductive substrate 11, when the battery 200 is installed in the battery compartment, an external power source can supply power to the first conductive substrate 11 through the first conductive terminal 14. The first conductive terminal 14 can reduce the difficulty of connecting the external power source and the first conductive substrate 11, thereby improving the operational convenience of the connection structure 100.

[0034] like Figure 1 , Figure 3 As shown, in some other embodiments of this application, a second conductive terminal 24 may be provided on the circumferential edge of the second conductive substrate 21. The second conductive terminal 24 extends along a second direction away from the second conductive substrate 21 and extends to the outer periphery of the battery 200. The second direction is perpendicular to the thickness direction of the second adhesive component 2 and may be the radial direction of the second conductive substrate 21, i.e., the length or width direction of the second conductive substrate 21. By providing the second conductive terminal 24 on the second conductive substrate 21, when the battery 200 is installed in the battery compartment, an external power source can supply power to the second conductive substrate 21 through the second conductive terminal 24. The second conductive terminal 24 can reduce the difficulty of connecting the external power source and the second conductive substrate 21, thereby improving the operational convenience of the connection structure 100. In some preferred embodiments, the connection structure 100 may simultaneously provide a first conductive terminal 14 and a second conductive terminal 24, thereby effectively improving the operational convenience of the connection structure 100.

[0035] like Figure 1 As shown, in some embodiments of this application, when the first conductive substrate 11 is provided with a first conductive terminal 14 and the second conductive substrate 21 is provided with a second conductive terminal 24, the first conductive terminal 14 and the second conductive terminal 24 are spaced apart along the circumferential direction of the first adhesive component 1. By spaced apart the first conductive terminal 14 and the second conductive terminal 24, it is possible to prevent the first conductive terminal 14 and the second conductive terminal 24 from contacting each other as much as possible, thereby preventing short circuits in the connection structure 100. Furthermore, this arrangement can prevent the first conductive terminal 14 and the second conductive terminal 24 from blocking each other, thereby facilitating the electrical connection of the power supply to the first conductive terminal 14 and the second conductive terminal 24 respectively.

[0036] like Figure 2As shown, in some embodiments of this application, the electro-adhesive layer 3 is disposed on the end wall of the second end 13 of the first conductive substrate 11, and the first adhesive assembly 1 further includes a first substrate layer 15, which is fixed to the end wall of the first end 12 of the first conductive substrate 11 so that the first conductive substrate 11 and the bottom wall 300 of the battery compartment are mutually insulated and spaced apart. The first substrate layer 15 has a first insulating portion 16, which is disposed opposite to the first conductive terminal 14 along the thickness direction of the first adhesive assembly 1.

[0037] In some preferred embodiments, the first substrate layer 15 can be a PET (Polyethylene Terephthalate) film. By using the first substrate layer 15 to separate the first conductive substrate 11 from the bottom wall 300 of the battery compartment, electrical connection between the battery compartment and the first conductive substrate 11 can be prevented. This can prevent the first conductive substrate 11 from charging and causing a decrease in the adhesive strength of the electrostatic adhesive layer 3 when other components of the mobile device are leaking current. It can also prevent current from being conducted to other components of the mobile device when the first conductive substrate 11 is energized, thus avoiding short circuit damage to other components of the mobile device.

[0038] And, as Figure 2 As shown, the first substrate layer 15 has a first insulating portion 16, which is disposed opposite to the first conductive terminal 14 along the thickness direction of the first adhesive assembly 1. The first insulating portion 16 can be formed from the edge of the first substrate layer 15. By utilizing the first insulating portion 16 to at least partially shield the first conductive terminal 14, when the connection structure 100 is installed in the battery compartment, the first insulating portion 16 can minimize contact between the first conductive terminal 14 and other components of the mobile device, thereby preventing short circuits in other components of the mobile device.

[0039] like Figure 2 As shown, in some embodiments of this application, the first adhesive component 1 further includes a first adhesive layer 17, which is fixed to the side of the first substrate layer 15 near the bottom wall 300 of the battery compartment. The first adhesive layer 17 is bonded to the bottom wall 300 of the battery compartment. Specifically, by applying adhesive to the first substrate layer 15, the adhesive solidifies to form the first adhesive layer 17. By bonding the first adhesive layer 17 to the bottom wall 300 of the battery compartment, the first adhesive component 1 is fixedly connected to the battery compartment. During the assembly of the mobile device, maintenance personnel can first bond the first adhesive component 1 to the bottom wall 300 of the battery compartment, and then bond the second adhesive component 2, which holds the battery 200, to the first adhesive component 1, thereby indirectly fixing the battery 200 within the battery compartment via the connecting structure 100.

[0040] Furthermore, the first adhesive layer 17 is constructed as a pressure-sensitive adhesive layer. Specifically, the pressure-sensitive adhesive layer can be formed by coating the first substrate layer 15 with an acrylic adhesive. In some specific embodiments, the adhesive strength of the pressure-sensitive adhesive layer can be 10N / 25mm / 25mm, that is, the average peel force of the pressure-sensitive adhesive layer measured on a 25mm wide tape using a 180° peel method is 10N to 30N. Preferably, the adhesive strength of the pressure-sensitive adhesive layer can be 20N / 25mm to 30N / 25mm, which ensures reliable adhesion between the pressure-sensitive adhesive layer and the bottom wall 300 of the battery compartment, preventing the first adhesive component 1 from loosening from the battery compartment. After the first adhesive component 1 is placed in the preset installation position of the battery compartment, pressing the first adhesive component 1 causes the pressure-sensitive adhesive layer to be compressed and bonded to the first substrate layer 15 and the bottom wall 300 of the battery compartment, thereby achieving the technical effect of fixing the first adhesive component 1 to the battery compartment.

[0041] like Figure 3 As shown, when the electro-adhesive layer 3 is disposed on the end wall of the second end 13 of the first conductive substrate 11, the second adhesive assembly 2 further includes a second substrate layer 25. The second substrate layer 25 is fixed to the end wall of the third end 22 of the second conductive substrate 21 so that the second conductive substrate 21 and the battery 200 are mutually insulated and spaced apart. In some preferred embodiments, the second substrate layer 25 can be a PET film. By using the second substrate layer 25 to space the second conductive substrate 21 and the battery 200 apart, the battery 200 can be prevented from being electrically connected to the second conductive substrate 21. This can prevent the second conductive substrate 21 from charging when the battery 200 leaks current, thus reducing the adhesive strength of the electro-adhesive layer 3. It can also prevent the current from being conducted to the battery 200 when the second conductive substrate 21 is energized, thus avoiding short circuit damage to the battery 200.

[0042] And, as Figure 3 As shown, the second substrate layer 25 has a second insulating portion 26, which is disposed opposite to the second conductive terminal 24 along the thickness direction of the second adhesive assembly 2. The second insulating portion 26 can be formed from the edge of the second substrate layer 25. By utilizing the second insulating portion 26 to at least partially shield the second conductive terminal 24, when the connection structure 100 is installed in the battery compartment, the second insulating portion 26 can minimize contact between the second conductive terminal 24 and other components of the mobile device, thereby preventing short circuits in other components of the mobile device.

[0043] like Figure 3As shown, in some embodiments of this application, the second adhesive component 2 further includes a second adhesive layer 27. The second adhesive layer 27 is fixed to the side of the second substrate layer 25 near the battery 200, and the second adhesive layer 27 is bonded to the battery 200. Specifically, by applying adhesive to the second substrate layer 25, the second adhesive layer 27 is formed after the adhesive solidifies. By bonding the second adhesive layer 27 to the battery 200, the technical effect of fixing the second adhesive component 2 to the battery 200 can be achieved. During the assembly of mobile devices, maintenance personnel can first bond the second adhesive component 2 to the battery 200, and then bond the second adhesive component 2 to the first adhesive component 1, thereby indirectly fixing the battery 200 to the battery compartment through the connecting structure 100.

[0044] Furthermore, the second adhesive layer 27 can be configured as a weak adhesive layer. Specifically, the weak adhesive layer can be formed by applying a sterilized acrylic adhesive to the second substrate layer 25. Sterilization refers to chemically treating the acrylic adhesive to reduce its adhesive strength; for example, reducing the amount of divinylbenzene or ethylene glycol dimethacrylate in the acrylic adhesive can significantly reduce the peel force of the weak adhesive layer. In some specific embodiments, the adhesive strength of the weak adhesive layer can be 3N / 25mm to 10N / 25mm, that is, the average peel force of the weak adhesive layer measured on a 25mm wide tape at a 180° peel angle is 3N to 10N. Preferably, the adhesive strength of the weak adhesive layer can be 3N / 25mm to 5N / 25mm, and the adhesive strength of the second adhesive layer 27 is weaker than that of the first adhesive layer 17.

[0045] When the first adhesive component 1 and the second adhesive component 2 are bonded together, the weak adhesive layer ensures that the battery 200 is reliably fixed in the battery compartment, preventing the battery 200 from moving around in the battery compartment. When the first adhesive component 1 and the second adhesive component 2 are separated, the weak adhesive layer is easily separated from the battery 200, which makes it easier for maintenance personnel to replace the second adhesive component 2 on the battery 200. This ensures that the battery 200 will not move around when it is reinstalled in the battery compartment, thereby improving the user experience after mobile device maintenance.

[0046] Based on this, this application further discloses a mobile device, which, according to an embodiment of this application, includes the connection structure 100 described above.

[0047] According to an embodiment of this application, the mobile device is provided with a connection structure 100. By fixing the first adhesive component 1 of the connection structure 100 to the bottom wall 300 of the battery compartment and fixing the second adhesive component 2 to the battery 200, and providing an electro-adhesive layer 3 between the first adhesive component 1 and the second adhesive component 2, during the replacement of the battery 200 in the mobile device, by energizing the first adhesive component 1 and the second adhesive component 2, the adhesive strength of the electro-adhesive layer 3 can be reduced, thereby reducing the connection strength between the battery 200 and the battery compartment when the battery 200 is replaced. Compared with the prior art, the connection structure 100 of this application can reduce the difficulty of removing the battery 200 from the battery compartment, thereby preventing the battery 200 from being bent or punctured, thus avoiding damage to the battery 200 and reducing the maintenance cost of the mobile device.

[0048] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this application, and these improvements and substitutions should also be considered within the scope of protection of this application.

Claims

1. A battery connection structure suitable for a mobile device, the mobile device including a battery and a battery compartment for mounting the battery, characterized in that, The connection structure includes: A first adhesive assembly includes a first conductive substrate. Along the thickness direction of the first adhesive assembly, the first conductive substrate includes a first end near the bottom wall of the battery compartment and a second end away from the bottom wall of the battery compartment. The first end wall is adapted to be fixedly connected to the bottom wall of the battery compartment. The second adhesive assembly includes a second conductive substrate. Along the thickness direction of the second adhesive assembly, the second conductive substrate includes a third end close to the battery and a fourth end away from the battery. The end wall of the third end is adapted to be fixedly connected to the battery. One of the second end wall and the fourth end wall is provided with an electro-adhesive layer, and the other end wall of the second end wall and the fourth end wall is bonded to the electro-adhesive layer. By applying or de-energizing the first conductive substrate and the second conductive substrate, the bonding strength of the electro-adhesive layer can be weakened or enhanced.

2. The battery connection structure according to claim 1, characterized in that, The first conductive substrate has a first conductive terminal on its circumferential edge. The first conductive terminal extends in a first direction away from the first conductive substrate and extends to the outer periphery of the battery. And / or, The second conductive substrate has a second conductive terminal on its circumferential edge. The second conductive terminal extends along a second direction toward a direction away from the second conductive substrate and extends to the outer periphery of the battery. The first direction is perpendicular to the thickness direction of the first adhesive component, and the second direction is perpendicular to the thickness direction of the second adhesive component.

3. The battery connection structure according to claim 2, characterized in that, The first conductive substrate is provided with the first conductive terminal, and the second conductive substrate is provided with the second conductive terminal. The first conductive terminal and the second conductive terminal are arranged at intervals along the circumferential direction of the first adhesive component.

4. The battery connection structure according to claim 3, characterized in that, The electro-adhesive layer is disposed on the second end wall. The first adhesive assembly further includes a first substrate layer, which is fixed to the first end wall so that the first conductive substrate and the bottom wall of the battery compartment are mutually insulated and spaced apart. The first substrate layer has a first insulating portion, which is disposed opposite to the first conductive terminal along the thickness direction of the first adhesive assembly.

5. The battery connection structure according to claim 4, characterized in that, The first adhesive assembly further includes a first adhesive layer, which is fixed to the side of the first substrate layer near the bottom wall of the battery compartment, and the first adhesive layer is bonded to the bottom wall of the battery compartment.

6. The battery connection structure according to claim 5, characterized in that, The first adhesive layer is a pressure-sensitive adhesive layer, and the adhesive strength of the pressure-sensitive adhesive layer is 10N / 25mm to 30N / 25mm.

7. The battery connection structure according to claim 3, characterized in that, The electro-adhesive layer is disposed on the second end wall. The second adhesive assembly further includes a second substrate layer, which is fixed to the third end wall so that the second conductive substrate and the battery are mutually insulated and spaced apart. The second substrate layer has a second insulating portion, which is disposed opposite to the second conductive terminal along the thickness direction of the second adhesive assembly.

8. The battery connection structure according to claim 7, characterized in that, The second adhesive assembly further includes a second adhesive layer, which is fixed to the side of the second substrate layer near the battery and is bonded to the battery.

9. The battery connection structure according to claim 8, characterized in that, The second adhesive layer is a weak adhesive layer, and the adhesive strength of the weak adhesive layer is 3N / 25mm to 10N / 25mm.

10. A mobile device, characterized in that, The battery connection structure includes any one of claims 1-9.

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