Electronic device
By using a combined structure of pressure-sensitive adhesive layer, substrate layer, conductive metal layer and electroreductive adhesive layer in electronic equipment, the damage problem during disassembly of batteries and display screens in electronic equipment is solved, and lossless disassembly and easy installation is achieved , meets users' self-demolition and replacement needs.
Patent Information
- Application Number
- CN202420247328.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-31
AI Technical Summary
In electronic devices, direct pulling and disassembling of the screen and battery can easily cause damage to the copper foil or deforming the battery, resulting in safety problems.
Using a special glue layer structure, including a pressure-sensitive adhesive layer, a substrate layer, a conductive metal layer and an electroporating adhesive layer, the battery and display are realized by energizing the electroporating adhesive layer to reduce its viscosity or lose its viscosity. Lossless disassembly of the screen.
It realizes easy installation and disassembly of the battery and display screen, avoids damage to the equipment by direct pulling and disassembly, and effectively avoids the residue of glue layer, meeting users' needs for self-disassembly and replace.
Smart Images
Figure CN222148032U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present application relate to the field of electronic technology, and in particular, to an electronic device. Background Art
[0002] At present, in electronic devices such as mobile phones and tablets, the conventional adhesive used to bond the screen and the middle frame, as well as the battery and the middle frame has strong viscosity. Direct pulling and disassembly may easily cause damage to the copper foil on the screen installation side, or cause deformation and damage to the battery, thereby causing safety problems. Utility Model Content
[0003] In view of this, an embodiment of the present application provides an electronic device, which uses a special adhesive layer structure to install and remove a battery or a display screen, so that the battery and the display screen can be easily removed from the electronic device, avoiding damage to the battery and the display screen caused by direct pulling and disassembly.
[0004] According to a first aspect of an embodiment of the present application, an electronic device is provided, the electronic device comprising a display screen, a middle frame, a battery and a glue layer structure, the display screen and the battery are respectively arranged on opposite sides of the middle frame, and a copper foil is arranged on a surface of a side of the display screen close to the middle frame; the glue layer structure comprises a pressure-sensitive glue layer, a substrate layer, a conductive metal layer and an electro-induced viscosity-reducing glue layer which are sequentially stacked;
[0005] Wherein, the middle frame includes a metal part, the glue layer structure is arranged between the middle frame and the battery, and one side of the pressure-sensitive glue layer of the glue layer structure is bonded to the battery, and one side of the electro-induced viscosity-reducing glue layer is bonded to the metal part of the middle frame; and / or, the glue layer structure is arranged between the middle frame and the display screen;
[0006] Alternatively, the middle frame is a plastic middle frame, the adhesive layer structure is arranged between the middle frame and the display screen, and one side of the electro-induced viscosity-reducing adhesive layer of the adhesive layer structure is bonded to the display screen, and one side of the pressure-sensitive adhesive layer is bonded to the middle frame.
[0007] The electronic device provided in the embodiment of the present application adopts a special adhesive layer structure to install a battery or a display screen. When the battery and the display screen need to be removed from the electronic device, the battery and the display screen can be conveniently removed from the electronic device by simply energizing the electro-reducing adhesive layer and reducing or losing the adhesiveness after energization, thereby achieving non-destructive disassembly, avoiding damage to the battery and the display screen caused by direct pulling and disassembly, and effectively avoiding the residue of the adhesive layer.
[0008] In the implementation manner of the present application, the middle frame includes a metal part, and the glue layer structure is arranged between the middle frame and the display screen and is specifically:
[0009] One side of the pressure-sensitive adhesive layer of the adhesive layer structure is bonded to the display screen, and one side of the electro-reducing adhesive layer is bonded to the metal part of the middle frame; or one side of the electro-reducing adhesive layer of the adhesive layer structure is bonded to the display screen, and one side of the pressure-sensitive adhesive layer is bonded to the middle frame.
[0010] In the embodiment of the present application, the electrically-induced viscosity-reducing adhesive layer is an adhesive layer whose viscosity is reduced or loses its viscosity after being energized.
[0011] In the implementation manner of the present application, the thickness of the electro-induced anti-viscosity layer is 50 μm-100 μm.
[0012] In the implementation manner of the present application, the difference in viscosity of the electrically induced anti-viscosity layer before and after power is applied is greater than or equal to 70%.
[0013] In the embodiment of the present application, the conductive metal layer is selected from an aluminum layer, an iron layer, a chromium layer, a zinc layer, a copper layer, a silver layer, a tin layer or a nickel layer.
[0014] In the implementation manner of the present application, the thickness of the conductive metal layer is 50nm-100nm.
[0015] In the embodiment of the present application, the substrate layer is a polymer material layer, and the thickness of the substrate layer is 10 μm-50 μm.
[0016] In the implementation manner of the present application, the pressure-sensitive adhesive layer is selected from an acrylic pressure-sensitive adhesive layer, a rubber pressure-sensitive adhesive layer, a polyurethane pressure-sensitive adhesive layer or a thermoplastic elastomer pressure-sensitive adhesive layer.
[0017] In the implementation manner of the present application, the thickness of the pressure-sensitive adhesive layer is 50 μm-100 μm.
[0018] In the implementation manner of the present application, at least part of the portion where the middle frame is bonded to the electro-induced viscosity-reducing adhesive layer is the metal portion.
[0019] In the implementation manner of the present application, at the outer edge of the glue layer structure, the conductive metal layer is partially exposed to form a tab.
[0020] In some embodiments of the present application, the middle frame includes a metal portion, and the electronic device is further provided with a first external port and / or a second external port;
[0021] The positive terminal of the first external port is electrically connected to the conductive metal layer in the glue layer structure bonded to the battery, the negative terminal of the first external port is electrically connected to the metal part of the middle frame, and the first external port is used to connect to an external power source;
[0022] The positive terminal of the second external port is electrically connected to the conductive metal layer in the glue layer structure bonded to the display screen, and the negative terminal of the second external port is electrically connected to the metal part of the middle frame or the copper foil on one side surface of the display screen, and the second external port is used to connect an external power source;
[0023] The external power source is used to energize the electrically induced viscosity-reducing adhesive layer in the adhesive layer structure bonded to the battery, and the viscosity is reduced or lost after the energization.
[0024] In some other embodiments of the present application, the middle frame is a plastic middle frame, and the electronic device is further provided with a second external port, the positive terminal of the second external port is electrically connected to the conductive metal layer in the glue layer structure bonded to the display screen, the negative terminal of the second external port is electrically connected to the copper foil on one side surface of the display screen, and the second port is used to connect an external power source;
[0025] The external power source is used to energize the electrically induced anti-adhesion adhesive layer in the adhesive layer structure bonded to the display screen, and the adhesiveness is reduced or lost after being energized.
[0026] In some other embodiments of the present application, the electronic device further includes a mainboard, and the middle frame includes a metal part;
[0027] The metal part of the middle frame and the conductive metal layer in the glue layer structure bonded to the battery are electrically connected to the main board, and the main board is used to control the electrically induced viscosity-reducing glue layer in the glue layer structure bonded to the battery to be energized and reduce or lose viscosity after energization;
[0028] And / or, the metal part of the middle frame or the copper foil on one side surface of the display screen, and the conductive metal layer in the glue layer structure bonded to the display screen are electrically connected to the mainboard, and the mainboard is used to control the electrically induced anti-viscosity glue layer in the glue layer structure bonded to the display screen to be energized and reduce or lose viscosity after energization.
[0029] In an embodiment of the present application, the electronic device further comprises a cover plate disposed on a side of the display screen away from the middle frame, and a back cover disposed on a side of the battery away from the middle frame, and the middle frame is fixedly connected between the cover plate and the back cover.
[0030] The electronic device provided in the embodiment of the present application can realize easy installation and removal of the display screen and the battery, and the operation is simple and practical, so that it is convenient for users to complete the removal and replacement of the display screen and the battery by themselves, better meet the needs of users, and can be widely used in various electronic devices with the needs of installation and removal of display screens and batteries. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1A schematic cross-sectional structure diagram of an electronic device 10 provided in one embodiment of the present application;
[0032] Figure 2 A schematic cross-sectional structure diagram of an electronic device 10 provided in another embodiment of the present application;
[0033] Figure 3 A schematic cross-sectional structure diagram of an electronic device 10 provided in another embodiment of the present application;
[0034] Figure 4 This is a schematic diagram of the structure of the adhesive layer structure 100 in the embodiment of the present application;
[0035] Figure 5 for Figure 4 Schematic diagram of the electrically induced viscosity-reducing adhesive layer 104 being electrically induced to reduce viscosity;
[0036] Figure 6 for Figure 1 Schematic diagram of the specific structure;
[0037] Figure 7 for Figure 6 Schematic diagram of the electrically induced viscosity-reducing adhesive layer 104 being electrically induced to reduce viscosity;
[0038] Figure 8 for Figure 2 Schematic diagram of the specific structure;
[0039] Fig. 9 for Figure 8 Schematic diagram of the electrically induced viscosity-reducing adhesive layer 104 being electrically induced to reduce viscosity;
[0040] Fig.10 for Figure 2 Schematic diagram of the specific structure;
[0041] Fig.11 for Figure 8 Schematic diagram of the electrically induced viscosity-reducing adhesive layer 104 being electrically induced to reduce viscosity;
[0042] Fig.12 and Fig.13 for Figure 3 Schematic diagram of the specific structure;
[0043] Fig.14 Schematic diagram of bonding the battery 13 to the middle frame 12;
[0044] Fig.15 Schematic diagram of bonding the display screen 11 and the middle frame 12;
[0045] Fig.16 This is a schematic diagram of the configuration of the first external port 111 in the electronic device 10 in one embodiment of the present application;
[0046] Fig.17This is a schematic diagram of the configuration of the second external port 112 in the electronic device 10 in one embodiment of the present application;
[0047] Fig.18 is a schematic diagram of the connection between the metal part and the conductive metal layer 102 and the main board;
[0048] Fig.19 It is a schematic diagram of the connection between the copper foil on one surface of the metal part or display screen 11, and the conductive metal layer 102 and the mainboard. DETAILED DESCRIPTION
[0049] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.
[0050] See also Figure 1 , Figure 2 and Figure 3 , Figure 1 , Figure 2 and Figure 3 The cross-sectional structure diagram of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 includes a display screen 11, a middle frame 12, a battery 13 and a glue layer structure 100, the display screen 11 and the battery 13 are respectively arranged on opposite sides of the middle frame 12, and a copper foil is arranged on the surface of the display screen 11 close to the middle frame 12.
[0051] In the present application, the electronic device 10 may be, but is not limited to, a mobile phone, a tablet computer, a laptop computer, a large screen, a wearable device (such as glasses, a bracelet, a watch, etc.), a vehicle-mounted device, etc.
[0052] See also Figure 4 , Figure 4 1 is a schematic diagram of the structure of the adhesive layer structure 100 in the embodiment of the present application. The adhesive layer structure 100 includes a substrate layer 101, a conductive metal layer 102 and a pressure-sensitive adhesive layer 103 respectively arranged on opposite sides of the substrate layer 101, and an electro-induced anti-adhesion adhesive layer 104 arranged on a side of the conductive metal layer 102 away from the substrate layer 101; that is, the adhesive layer structure 100 includes the pressure-sensitive adhesive layer 103, the substrate layer 101, the conductive metal layer 102 and the electro-induced anti-adhesion adhesive layer 104 stacked in sequence.
[0053] In the embodiments of the present application, the electro-reducing adhesive layer 104 is an adhesive layer whose viscosity decreases or loses viscosity after power is applied. In some embodiments of the present application, the electro-reducing adhesive layer 104 includes a pressure-sensitive adhesive and a movable electrolyte, wherein the pressure-sensitive adhesive may include an acrylic pressure-sensitive adhesive, a rubber pressure-sensitive adhesive, a polyurethane pressure-sensitive adhesive, or a thermoplastic elastomer pressure-sensitive adhesive. The movable electrolyte may include an ionic liquid or a solid conductive salt.
[0054] See also Figure 5 , Figure 5 for Figure 4Schematic diagram of the electrically induced viscosity reduction layer 104 being electrically induced to reduce viscosity. In the present application, the mechanism of the electrically induced viscosity reduction layer 104 may be:
[0055] The adhesive layer structure 100 is bonded to the conductive substrate 1 through the electro-viscosity reducing adhesive layer 104. By electrifying the conductive metal layer 102 and the conductive substrate 1, the randomly distributed movable electrolytes in the electro-viscosity reducing adhesive layer 104 migrate directionally in the electro-viscosity reducing adhesive layer 104 under the action of the electric field, and the cations move to the negative electrode, and the anions move to the positive electrode. The contact interface of the electro-viscosity reducing adhesive layer 104 and the conductive substrate 1 rapidly undergoes an electrochemical reaction in the presence of the electric field, so that the adhesive force between the electro-viscosity reducing adhesive layer 104 and the conductive substrate 1 is reduced or eliminated, that is, the electro-viscosity reducing is achieved, so that the peeling between the electro-viscosity reducing adhesive layer 104 and the conductive substrate 1 becomes easy, so that the conductive substrate 1 can be easily peeled off. From this mechanism, it can be seen that one side of the electro-viscosity reducing adhesive layer 104 of the adhesive layer structure 100 needs to be bonded to the conductive surface in order to achieve peeling after electrification.
[0056] In order to achieve good peeling under power-on, in the embodiment of the present application, the difference in viscosity of the electro-induced anti-viscosity adhesive layer 104 before and after power-on is greater than or equal to 70%. In some embodiments, the difference in viscosity of the electro-induced anti-viscosity adhesive layer 104 before and after power-on is greater than or equal to 80%, or greater than or equal to 85%, or greater than or equal to 90%, or greater than or equal to 95%. It can be understood that the greater the difference in viscosity of the electro-induced anti-viscosity adhesive layer 104 before and after power-on, the more conducive it is to maintain the stable combination of the adhered parts on both sides of the adhesive layer structure 100 when power is not turned on, and to achieve easy peeling of the adhesive layer structure 100 and the adhered parts after power-on.
[0057] In the embodiment of the present application, the thickness of the electro-reducing adhesive layer 104 is 50 μm-100 μm. In some embodiments, the thickness of the electro-reducing adhesive layer 104 can be, but is not limited to, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, or 100 μm. The appropriate thickness is conducive to the electro-reducing adhesive layer 104 to play a better bonding role when not powered on, and to better realize the peeling of the adhesive layer structure after power is turned on.
[0058] In the present application, the conductive metal layer 102 is used to connect an external power source together with the conductive substrate 1, so that the electro-induced viscosity-reducing adhesive layer 104 is energized and the viscosity is reduced or lost after the energization, so that the conductive substrate 1 and the adhesive layer structure 100 can be peeled off. Specifically in the electronic device 10, the conductive substrate 1 can be a copper foil on the surface of the display screen 11 or a metal part of the middle frame 12.
[0059] In the embodiment of the present application, the conductive metal layer 102 may be selected from an aluminum layer, an iron layer, a chromium layer, a zinc layer, a copper layer, a silver layer, a tin layer or a nickel layer. These metal material layers have good electrical conductivity and can be well connected to an external power source as an electrode to form a circuit. In the embodiment of the present application, the thickness of the conductive metal layer 102 may be 50nm-100nm. In some embodiments, the thickness of the conductive metal layer 102 may be, but is not limited to, 50nm, 60nm, 70nm, 80nm, 90nm, 100nm. The conductive metal layer 102 may be plated by electroplating, sputtering, etc., that is, the conductive metal layer 102 is a conductive metal plating layer. The above thickness can not only achieve good conductive performance, but also avoid the negative effects of occupying space and increasing costs caused by the overall thickness of the adhesive layer structure 100.
[0060] In the embodiment of the present application, the substrate layer 101 is a polymer material layer, and specifically, for example, it can be a polyethylene terephthalate (PET) layer or a polyimide (PI) layer. In the embodiment of the present application, the thickness of the substrate layer 101 can be 10μm-50μm. In some embodiments, the thickness of the substrate layer 101 can be, but is not limited to, 10μm, 20μm, 30μm, 40μm, and 50μm. The substrate layer 101 is made of a polymer material, which can not only play a good bearing role, but also facilitate the formation of the conductive metal layer 102, and can better fit with the adhered parts. The control of the thickness of the substrate layer 101 is conducive to playing a bearing role and controlling the overall adhesive layer structure 100 to be relatively thin.
[0061] In the embodiment of the present application, the pressure-sensitive adhesive layer 103 may be selected from an acrylic pressure-sensitive adhesive layer, a rubber pressure-sensitive adhesive layer, a polyurethane pressure-sensitive adhesive layer or a thermoplastic elastomer pressure-sensitive adhesive layer. The thermoplastic elastomer pressure-sensitive adhesive layer may be, for example, a styrene thermoplastic elastomer pressure-sensitive adhesive layer. The pressure-sensitive adhesive used in the pressure-sensitive adhesive layer 103 is a type of adhesive that is sensitive to pressure. The pressure-sensitive adhesive has good adhesion and anti-aging properties, and can improve the bonding reliability of the adhered parts.
[0062] In the embodiment of the present application, the thickness of the pressure-sensitive adhesive layer 103 is 50 μm-100 μm. In some embodiments, the thickness of the pressure-sensitive adhesive layer 103 may be, but is not limited to, 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, or 100 μm. As the adhesive layer directly bonded to the adhered component, the pressure-sensitive adhesive layer 103 has a suitable thickness control, which is conducive to ensuring the bonding force between the pressure-sensitive adhesive layer and the adhered component, and can also avoid the negative effects such as space occupation caused by the adhesive layer structure 100 being too thick as a whole.
[0063] See also Figure 4 In some embodiments of the present application, at the outer edge of the glue layer structure 100 , the conductive metal layer 102 is partially exposed to form a tab 105 .
[0064] In some embodiments of the present application, the middle frame 12 includes a metal part, see Figure 1 and Figure 6 , Figure 6 for Figure 1 The adhesive layer structure 100 is disposed between the middle frame 12 and the battery 13, and one side of the pressure-sensitive adhesive layer 103 of the adhesive layer structure 100 is bonded to the battery 13, and one side of the electro-induced adhesive layer 104 is bonded to the metal part of the middle frame 12. Figure 7 , Figure 7 for Figure 6 Schematic diagram of the electro-induced viscosity-reducing adhesive layer 104 being energized for viscosity reduction; when the metal portion of the middle frame 12 and the conductive metal layer 102 are connected to an external power source together, wherein the conductive metal layer 102 is connected to the positive electrode of the external power source, and the metal portion of the middle frame 12 is connected to the negative electrode of the external power source, a conductive path is constructed between the conductive metal layer 102 and the metal portion of the middle frame 12, and the electro-induced viscosity-reducing adhesive layer 104 is energized. Under the action of the electric field, the cations in the electro-induced viscosity-reducing adhesive layer 104 move toward the negative electrode side, and the anions move toward the positive electrode side, wherein the cations undergo an electrochemical reaction on the negative electrode side, so that the adhesion between the electro-induced viscosity-reducing adhesive layer 104 and the metal portion of the middle frame 12 is reduced or eliminated, thereby enabling the adhesive layer structure 100 to be peeled off from the middle frame 12, and the battery 13 is removed from the middle frame 12.
[0065] In some other embodiments of the present application, the middle frame 12 includes a metal part, see Figure 2 The glue layer structure 100 is disposed between the middle frame 12 and the display screen 11 .
[0066] In some embodiments, see Figure 8 , Figure 8 for Figure 2 The adhesive layer structure 100 is disposed between the middle frame 12 and the display screen 11. Specifically, one side of the pressure-sensitive adhesive layer 103 of the adhesive layer structure 100 is bonded to the display screen 11, and one side of the electro-induced adhesive layer 104 is bonded to the metal part of the middle frame 12. Fig. 9 , Fig. 9 for Figure 8Schematic diagram of the electro-induced viscosity-reducing adhesive layer 104 being energized for viscosity reduction; when the metal portion of the middle frame 12 and the conductive metal layer 102 are connected to an external power source together, wherein the conductive metal layer 102 is connected to the positive electrode of the external power source, and the metal portion of the middle frame 12 is connected to the negative electrode of the external power source, a conductive path is constructed between the conductive metal layer 102 and the metal portion of the middle frame 12, and the electro-induced viscosity-reducing adhesive layer 104 is energized. Under the action of the electric field, the cations in the electro-induced viscosity-reducing adhesive layer 104 move toward the negative electrode side, and the anions move toward the positive electrode side, wherein the cations undergo an electrochemical reaction on the negative electrode side, so that the adhesion between the electro-induced viscosity-reducing adhesive layer 104 and the metal portion of the middle frame 12 is reduced or eliminated, thereby enabling the adhesive layer structure 100 to be peeled off from the middle frame 12, and the display screen 11 is removed from the middle frame 12.
[0067] In other embodiments, see Fig.10 , Fig.10 for Figure 2 The adhesive layer structure 100 is disposed between the middle frame 12 and the display screen 11. Specifically, one side of the electro-induced adhesive layer 104 of the adhesive layer structure 100 is bonded to the display screen 11, and one side of the pressure-sensitive adhesive layer 103 is bonded to the middle frame 12. Fig.11 , Fig.11 for Figure 8 Schematic diagram of the electro-induced viscosity-reducing adhesive layer 104 being energized for viscosity reduction; when the copper foil on the side surface of the display screen 11 close to the middle frame 12 is connected to an external power source together with the conductive metal layer 102, wherein the conductive metal layer 102 is connected to the positive electrode of the external power source, and the copper foil on the surface of the display screen 11 is connected to the negative electrode of the external power source, a conductive path is constructed between the conductive metal layer 102 and the copper foil on the surface of the display screen 11, and the electro-induced viscosity-reducing adhesive layer 104 is energized. Under the action of the electric field, the cations in the electro-induced viscosity-reducing adhesive layer 104 move toward the negative electrode side, and the anions move toward the positive electrode side, wherein the cations undergo an electrochemical reaction on the negative electrode side, so that the adhesion between the electro-induced viscosity-reducing adhesive layer 104 and the display screen 11 is reduced or eliminated, thereby enabling the adhesive layer structure 100 to be peeled off from the display screen 11, and the display screen 11 is removed from the middle frame 12. Relative Figure 8 The structure shown, Fig.10 The structure shown can better protect the display screen 11 from damage when the display screen 11 is disassembled.
[0068] In some other embodiments of the present application, the middle frame 12 includes a metal part, see Fig.12 The glue layer structure 100 is arranged between the middle frame 12 and the battery 13, and one side of the pressure-sensitive adhesive layer 103 of the glue layer structure 100 is bonded to the battery 13, and one side of the electro-induced anti-adhesion adhesive layer 104 is bonded to the metal part of the middle frame 12; at the same time, the glue layer structure 100 is arranged between the middle frame 12 and the display screen 11, one side of the electro-induced anti-adhesion adhesive layer 104 of the glue layer structure 100 is bonded to the display screen 11, and one side of the pressure-sensitive adhesive layer 103 is bonded to the middle frame 12.
[0069] In some other embodiments of the present application, the middle frame 12 includes a metal part, see Fig.13 The glue layer structure 100 is arranged between the middle frame 12 and the battery 13, and one side of the pressure-sensitive adhesive layer 103 of the glue layer structure 100 is bonded to the battery 13, and one side of the electro-induced anti-adhesion adhesive layer 104 is bonded to the metal part of the middle frame 12; at the same time, the glue layer structure 100 is arranged between the middle frame 12 and the display screen 11, one side of the pressure-sensitive adhesive layer 103 of the glue layer structure 100 is bonded to the display screen 11, and one side of the electro-induced anti-adhesion adhesive layer 104 is bonded to the metal part of the middle frame 12.
[0070] In the embodiment of the present application, when the metal part of the middle frame 12 is used as the negative electrode, in order to better realize the energization and de-adhesion of the electro-reducing adhesive layer, at least part of the part where the middle frame 12 is bonded to the electro-reducing adhesive layer 104 is a metal part. It can be understood that the more metal parts there are where the middle frame 12 is bonded to the electro-reducing adhesive layer 104, the more conducive it is for the electro-reducing adhesive layer 104 to achieve a uniform distribution of cations on the side of the electro-reducing adhesive layer 104 close to the negative electrode after power is applied, and finally achieve a good peeling of the entire surface of the side of the electro-reducing adhesive layer 104 close to the negative electrode from the metal part of the middle frame 12. In some embodiments, the parts where the middle frame 12 is bonded to the electro-reducing adhesive layer 104 are all metal parts.
[0071] In some embodiments of the present application, the electronic device 10 further includes a cover plate disposed on the side of the display screen 11 away from the middle frame 12, and further includes a back cover disposed on the side of the battery 13 away from the middle frame 12, and the middle frame 12 is fixedly connected between the cover plate and the back cover. The middle frame 12 and the back cover may be a separate structure or an integrally formed structure.
[0072] See also Fig.14 , Fig.14 Schematic diagram of bonding the battery 13 to the middle frame 12; when bonding the battery 13 to the middle frame 12, the battery 13 is bonded to the battery compartment of the middle frame 12, and the adhesive layer side of the battery bonded with the adhesive layer structure 100 is bonded to the middle frame 12. To facilitate the application of voltage to the electro-induced adhesive layer 104, in some embodiments of the present application, a tab 1051 is provided on the conductive metal layer 102 of the adhesive layer structure 100 as a positive tab, and a tab 106 is provided on the metal part of the middle frame 12 as a negative tab.
[0073] See also Fig.15 , Fig.15Schematic diagram of bonding the display screen 11 and the middle frame 12; when bonding the display screen 11 and the middle frame 12, the copper foil side of the display screen 11 is bonded to the glue layer side of the middle frame 12 bonded with the glue layer structure 100. The glue layer structure 100 may be arranged corresponding to the edge area of the display screen 11. The specific position and size of the glue layer structure 100 between the display screen 11 and the middle frame 12 are not particularly limited in the present application, as long as the display screen 11 can be firmly bonded. In order to facilitate the application of voltage to the electro-induced viscosity-reducing adhesive layer 104, in some embodiments of the present application, a pole ear 1052 is arranged on the conductive metal layer 102 of the glue layer structure 100 as a positive pole ear, and a pole ear 107 is arranged on the copper foil of the display screen 11 as a negative pole ear. In other embodiments, a pole ear may be arranged on the conductive metal layer 102 of the glue layer structure 100 as a positive pole ear, and a pole ear may be arranged on the metal part of the middle frame 12 as a negative pole ear.
[0074] In some embodiments of the present application, when the middle frame 12 includes a metal part, in order to achieve the connection of an external power source, an external port may be provided on the electronic device 10 to connect the external power source, so that the electrically induced anti-adhesion adhesive layer 104 is energized. Fig.16 and Fig.17 In some embodiments, the electronic device 10 is further provided with a first external connection port 111 and / or a second external connection port 112; Fig.16 This is a schematic diagram of the configuration of the first external port 111 in the electronic device 10 in one embodiment of the present application; Fig.17 FIG. 1 is a schematic diagram of the configuration of the second external port 112 in the electronic device 10 according to an embodiment of the present application.
[0075] like Fig.16 As shown, the positive terminal of the first external connection port 111 is electrically connected to the conductive metal layer 102 in the glue layer structure 100 bonded to the battery 13, and the negative terminal of the first external connection port 111 is electrically connected to the metal part of the middle frame 12. The first external connection port 111 is used to connect an external power source, so that the electrically induced viscosity-reducing adhesive layer 104 in the glue layer structure 100 bonded to the battery 13 is energized and the viscosity is reduced or lost after energization. In a specific embodiment, the tab 105 provided on the conductive metal layer 102 in the glue layer structure 100 bonded to the battery 13 is used as a positive tab, and the metal part of the middle frame 12 is provided with a tab as a negative tab. The positive tab is connected to the positive terminal of the first external connection port 111 through a wire, and the negative tab is connected to the negative terminal of the first external connection port 111 through a wire.
[0076] In the present application, the first external port 111 may be provided on the frame of the electronic device 10, specifically on the middle frame 12. The specific position of the first external port 111 on the middle frame 12 is not limited, and may be provided on both sides, or on the top or bottom. Fig.16The location of the first external port 111 is only for illustration and does not limit the location of the first external port 111 on the middle frame 12 of the present application.
[0077] like Fig.17 As shown, the positive terminal of the second external port 112 is electrically connected to the conductive metal layer 102 in the glue layer structure 100 bonded to the display screen 11, and the negative terminal of the second external port 112 is electrically connected to the metal part of the middle frame 12 or the copper foil on the surface of one side of the display screen 11. The second external port 112 is used to connect an external power source; the external power source is used to energize the electrically induced viscosity-reducing glue layer in the glue layer structure 100 bonded to the display screen 11 and reduce or lose viscosity after energization. In a specific embodiment, the tab 105 provided on the conductive metal layer 102 in the glue layer structure 100 bonded to the display screen 11 serves as a positive tab, and a tab is provided on the metal part of the middle frame 12 as a negative tab. The positive tab is connected to the positive terminal of the second external port 112 through a wire, and the negative tab is connected to the negative terminal of the second external port 112 through a wire. In another specific embodiment, the tab 105 provided on the conductive metal layer 102 in the adhesive layer structure 100 bonded to the display screen 11 serves as a positive tab, and a tab is provided on the copper foil on one side of the display screen 11 as a negative tab. The positive tab is connected to the positive terminal of the second external port 112 through a wire, and the negative tab is connected to the negative terminal of the second external port 112 through a wire.
[0078] In the present application, the second external port 112 may be disposed on the frame of the electronic device 10, specifically on the middle frame 12. The specific position of the second external port 112 on the middle frame 12 is not limited, and may be disposed on both sides, or on the top or bottom. Fig.17 The location of the second external port 112 is only for illustration and does not constitute a limitation on the location of the second external port 112 on the middle frame 12 of the present application.
[0079] In some other embodiments of the present application, the middle frame 12 includes a metal part, and the electronic device 10 also includes a mainboard. The electrically induced anti-viscosity adhesive layer 104 may be energized by controlling the mainboard, and the mainboard is disposed inside the electronic device 10 .
[0080] See also Fig.18 , Fig.18 Schematic diagram of the connection between the metal part and the conductive metal layer 102 and the mainboard; Fig.18As shown, the metal part of the middle frame 12 and the conductive metal layer in the glue layer structure bonded to the battery 13 are electrically connected to the main board, and the main board is used to control the electrical reduction adhesive layer 104 in the glue layer structure 100 bonded to the battery 13 to be energized and reduce or lose viscosity after energization; in a specific embodiment, the pole ear 105 provided on the conductive metal layer 102 in the glue layer structure 100 bonded to the battery 13 is used as a positive pole ear, and the metal part of the middle frame 12 is provided with a pole ear as a negative pole ear, and the positive pole ear and the negative pole ear are connected to the corresponding connection points on the main board through a wire. The main board includes a controller and a switch, and the controller realizes the control of powering on and off of the electrical reduction adhesive layer 104 by controlling the opening and closing of the switch.
[0081] See also Fig.19 , Fig.19 Schematic diagram of the connection between the copper foil on one side of the metal part or display screen 11 and the conductive metal layer 102 and the mainboard; Fig.19 As shown, the metal part of the middle frame 12 or the copper foil on one side of the display screen 11, and the conductive metal layer 102 in the glue layer structure 100 bonded to the display screen 11 are electrically connected to the main board, and the main board is used to control the electrically induced viscosity-reducing glue layer 104 in the glue layer structure 100 bonded to the display screen 11 to be energized and reduce or lose viscosity after energization. In a specific embodiment, the pole ear 105 provided on the conductive metal layer 102 in the glue layer structure 100 bonded to the display screen 11 is used as a positive pole ear, and the metal part of the middle frame 12 is provided with a pole ear as a negative pole ear, and the positive pole ear and the negative pole ear are connected to the corresponding connection point on the main board through a wire. In another specific embodiment, the pole ear 105 provided on the conductive metal layer 102 in the glue layer structure 100 bonded to the display screen 11 is used as a positive pole ear, and the copper foil on one side of the display screen 11 is provided with a pole ear as a negative pole ear, and the positive pole ear and the negative pole ear are connected to the corresponding connection point on the main board through a wire. The main board includes a controller and a switch. The controller controls the opening and closing of the switch to realize the power-on and power-off control of the electro-induced anti-adhesion adhesive layer 104 .
[0082] It can be understood that in a normal bonding state, the mainboard controls the electro-induced anti-adhesion adhesive layer 104 to be in a power-off state, and when disassembly is required, the mainboard controls the electro-induced anti-adhesion adhesive layer 104 to be in a power-on state.
[0083] In the embodiment of the present application, when a glue layer structure 100 is provided between the display screen 11 and the middle frame 12, and between the battery 13 and the middle frame 12, the two glue layer structures 100 may both use the above-mentioned external port to realize the power-on of the electro-induced anti-viscosity glue layer 104; or both use the above-mentioned mainboard control method to realize the power-on of the electro-induced anti-viscosity glue layer 104; or one of them may use the above-mentioned external port method to realize the power-on of the electro-induced anti-viscosity glue layer 104, and the other may use the above-mentioned mainboard control method to realize the power-on of the electro-induced anti-viscosity glue layer 104.
[0084] In some other embodiments of the present application, the middle frame 12 is a plastic middle frame, see Fig.10 The adhesive layer structure 100 is disposed between the middle frame 12 and the display screen 11, and one side of the electro-induced anti-adhesion adhesive layer 104 of the adhesive layer structure 100 is bonded to the display screen 11, and one side of the pressure-sensitive adhesive layer 103 is bonded to the middle frame 12. The mechanism of the electro-induced anti-adhesion adhesive layer 104 is as follows: Fig.11 As shown, no further description is given here.
[0085] In this embodiment, see Fig.17 In order to achieve the connection of an external power source, the electronic device 10 is further provided with a second external port 112. The positive terminal of the second external port 112 is electrically connected to the conductive metal layer 102 in the glue layer structure 100 bonded to the display screen 11, and the negative terminal of the second external port 112 is electrically connected to the metal part of the middle frame 12 or the copper foil on the surface of one side of the display screen 11. The second external port 112 is used to connect an external power source; the external power source is used to energize the electrically induced viscosity-reducing adhesive layer in the glue layer structure 100 bonded to the display screen 11 and reduce or lose viscosity after energization. In a specific embodiment, the pole ear 105 provided on the conductive metal layer 102 in the glue layer structure 100 bonded to the display screen 11 is used as a positive pole ear, and a pole ear is provided on the copper foil on the surface of one side of the display screen 11 as a negative pole ear. The positive pole ear is connected to the positive terminal of the second external port 112 through a wire, and the negative pole ear is connected to the negative terminal of the second external port 112 through a wire.
[0086] In this embodiment, see Fig.17 , the copper foil on one side of the display screen 11, and the conductive metal layer 102 in the adhesive layer structure 100 bonded to the display screen 11 are electrically connected to the main board, and the main board is used to control the electrically induced viscosity-reducing adhesive layer 104 in the adhesive layer structure 100 bonded to the display screen 11 to be energized and to reduce or lose viscosity after energization. In a specific embodiment, the tab 105 provided on the conductive metal layer 102 in the adhesive layer structure 100 bonded to the display screen 11 is used as a positive tab, and a tab is provided on the copper foil on one side of the display screen 11 as a negative tab, and the positive tab and the negative tab are connected to corresponding connection points on the main board through wires.
[0087] The electronic device provided in the embodiment of the present application can achieve effective viscosity reduction of the adhesive layer structure by applying a certain voltage, which is beneficial to reducing disassembly damage, thereby achieving non-destructive disassembly and recycling of the battery and display screen; and because the display screen and battery can be easily installed and disassembled, it is convenient for users to complete the disassembly and replacement of the display screen and battery by themselves, thereby better meeting user needs.
[0088] It should be understood that the first, second and various numerical numbers involved in this document are only distinguished for the convenience of description and are not used to limit the scope of the present application.
[0089] In this application, "and / or" describes the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the associated objects are in an "or" relationship.
[0090] In this application, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, "at least one of a, b, or c", or "at least one of a, b, and c" can all mean: a, b, c, ab (i.e., a and b), ac, bc, or abc, where a, b, c can be single or multiple, respectively.
[0091] In this application, “-” represents a range value, including the endpoint values at both ends. For example, the value of a can be 0.5-15, which means that the value of a can be between 0.5 and 15, and includes the endpoint values 0.5 and 15.
[0092] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution, some or all of the steps can be executed in parallel or sequentially, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
Claims
1. An electronic device, characterized in that: The electronic device comprises a display screen, a middle frame, a battery and a glue layer structure, wherein the display screen and the battery are respectively arranged on opposite sides of the middle frame, and a copper foil is arranged on a surface of a side of the display screen close to the middle frame; the glue layer structure comprises a pressure-sensitive glue layer, a substrate layer, a conductive metal layer and an electro-induced viscosity-reducing glue layer which are stacked in sequence; Wherein, the middle frame includes a metal part, the glue layer structure is arranged between the middle frame and the battery, and one side of the pressure-sensitive glue layer of the glue layer structure is bonded to the battery, and one side of the electro-induced viscosity-reducing glue layer is bonded to the metal part of the middle frame; and / or, the glue layer structure is arranged between the middle frame and the display screen; Alternatively, the middle frame is a plastic middle frame, the adhesive layer structure is arranged between the middle frame and the display screen, and one side of the electro-induced viscosity-reducing adhesive layer of the adhesive layer structure is bonded to the display screen, and one side of the pressure-sensitive adhesive layer is bonded to the middle frame.
2. The electronic device according to claim 1, wherein: The middle frame includes a metal part, and the glue layer structure is arranged between the middle frame and the display screen and is specifically: One side of the pressure-sensitive adhesive layer of the adhesive layer structure is bonded to the display screen, and one side of the electro-reducing adhesive layer is bonded to the metal part of the middle frame; or one side of the electro-reducing adhesive layer of the adhesive layer structure is bonded to the display screen, and one side of the pressure-sensitive adhesive layer is bonded to the middle frame.
3. The electronic device according to claim 1 or 2, characterized in that: The electrically induced anti-viscosity adhesive layer is an adhesive layer whose viscosity is reduced or loses its viscosity after being energized; the thickness of the electrically induced anti-viscosity adhesive layer is 50 μm-100 μm.
4. The electronic device according to claim 3, characterized in that: The difference in viscosity of the electrically induced anti-viscosity layer before and after power is applied is greater than or equal to 70%.
5. The electronic device according to claim 1, wherein: The conductive metal layer is selected from an aluminum layer, an iron layer, a chromium layer, a zinc layer, a copper layer, a silver layer, a tin layer or a nickel layer.
6. The electronic device according to claim 1 or 5, characterized in that: The thickness of the conductive metal layer is 50nm-100nm.
7. The electronic device according to claim 1 or 2, characterized in that: The substrate layer is a polymer material layer, and the thickness of the substrate layer is 10 μm-50 μm.
8. The electronic device according to claim 1, wherein: The pressure-sensitive adhesive layer is selected from an acrylic pressure-sensitive adhesive layer, a rubber pressure-sensitive adhesive layer, a polyurethane pressure-sensitive adhesive layer or a thermoplastic elastomer pressure-sensitive adhesive layer.
9. The electronic device according to claim 1 or 8, characterized in that: The thickness of the pressure-sensitive adhesive layer is 50 μm-100 μm.
10. The electronic device according to claim 1 or 2, characterized in that: The portion where the middle frame is bonded to the electro-induced viscosity-reducing adhesive layer is at least partially the metal portion.
11. The electronic device according to claim 1 or 2, characterized in that: At the outer edge of the glue layer structure, the conductive metal layer is partially exposed to form a tab.
12. The electronic device according to claim 1 or 2, characterized in that: The middle frame includes a metal part, and the electronic device is also provided with a first external port and / or a second external port; The positive terminal of the first external port is electrically connected to the conductive metal layer in the glue layer structure bonded to the battery, the negative terminal of the first external port is electrically connected to the metal part of the middle frame, and the first external port is used to connect to an external power source; The positive terminal of the second external port is electrically connected to the conductive metal layer in the glue layer structure bonded to the display screen, and the negative terminal of the second external port is electrically connected to the metal part of the middle frame or the copper foil on one side surface of the display screen, and the second external port is used to connect an external power source; The external power source is used to energize the electrically induced viscosity-reducing adhesive layer in the adhesive layer structure bonded to the battery, and the viscosity is reduced or lost after the energization.
13. The electronic device according to claim 1 or 2, characterized in that: The middle frame is a plastic middle frame, and the electronic device is also provided with a second external port, the positive terminal of the second external port is electrically connected to the conductive metal layer in the glue layer structure bonded to the display screen, and the negative terminal of the second external port is electrically connected to the copper foil on one side surface of the display screen. The second external port is used to connect an external power supply, and the external power supply is used to energize the electrically induced anti-viscosity adhesive layer in the glue layer structure bonded to the display screen and reduce or lose viscosity after energization.
14. The electronic device according to claim 1 or 2, characterized in that: The electronic device further includes a mainboard, and the middle frame includes a metal part; The metal part of the middle frame and the conductive metal layer in the glue layer structure bonded to the battery are electrically connected to the main board, and the main board is used to control the electrically induced viscosity-reducing glue layer in the glue layer structure bonded to the battery to be energized and reduce or lose viscosity after energization; And / or, the metal part of the middle frame or the copper foil on one side surface of the display screen, and the conductive metal layer in the glue layer structure bonded to the display screen are electrically connected to the mainboard, and the mainboard is used to control the electrically induced anti-viscosity glue layer in the glue layer structure bonded to the display screen to be energized and reduce or lose viscosity after energization.
15. The electronic device according to claim 1 or 2, characterized in that: The electronic device further comprises a cover plate arranged on a side of the display screen away from the middle frame, and a back cover arranged on a side of the battery away from the middle frame, and the middle frame is fixedly connected between the cover plate and the back cover.