Bonding glue, bonding assembly, bonding method and terminal equipment

Abstract

The invention relates to a bonding adhesive, a bonding assembly, a bonding method and terminal equipment, the bonding adhesive comprises a mounting base part, a solid adhesive and a semi-fluid curing adhesive, the solid adhesive is at least partially arranged on the outer surface of the mounting base part, and the solid adhesive comprises at least two bonding surfaces for bonding with different bonding pieces; a closed accommodating cavity is defined by the mounting base part, and the semi-fluid curing adhesive is arranged in the accommodating cavity; wherein the mounting base part and the solid glue are provided with at least one weak part, and the weak part is constructed to enable the weak part to be broken when the borne pressure is not smaller than a first preset pressure, so that the semi-fluid curing glue can flow out of the containing cavity to be used for being bonded with a bonding piece. According to the adhesive, the bonding strength between different bonding pieces can be improved, and the situation of adhesive failure is avoided.

Description

Technical Field

[0001] The present disclosure relates to the technical field of adhesive glue, and in particular, to an adhesive glue, an adhesive assembly and an adhesive method, and a terminal device. Background Art

[0002] In the related art, the backlight structure in the LCD (Liquid Crystal Display) screen is fixed to the lower polarizer by light-shielding glue. The upper side of the light-shielding glue is bonded to the lower polarizer with a wide bonding width and good bonding strength. The lower side of the light-shielding glue is bonded to the light guide assembly and the backlight glue frame. Because the width is divided into two parts and a gap must be left between the light guide assembly and the backlight glue frame, the bonding width between the light-shielding glue and the backlight glue frame is narrow and the bonding strength is poor. The backlight structure mainly fixes the entire backlight by bonding the light-shielding glue to the backlight glue frame. When the bonding strength between the two is insufficient, the light-shielding glue and the backlight glue frame will debond, causing defects such as bright lines on the edges or light leakage. In addition, with the increase in the demand for narrow bezels, the bonding width between the light-shielding glue and the glue frame can only be narrowed, resulting in the light-shielding glue and the backlight glue frame being more prone to debonding. Summary of the Invention

[0003] In order to overcome the problems existing in the related art, the present disclosure provides an adhesive, an adhesive assembly and an adhesive method, and a terminal device to solve the technical problems existing in the related art.

[0004] According to a first aspect of an embodiment of the present disclosure, there is provided an adhesive, comprising a mounting base, a solid adhesive, and a semi-fluid curing adhesive, wherein the solid adhesive is at least partially disposed on an outer surface of the mounting base and includes at least two adhesive surfaces for bonding to different adhesive members; the mounting base defines a closed accommodating cavity, and the semi-fluid curing adhesive is disposed within the accommodating cavity;

[0005] Wherein, the mounting base and the solid glue are provided with at least one weak portion, and the weak portion is constructed so that: when the pressure received is not less than a first preset pressure, the weak portion can break, so that the semi-fluid curing glue can flow out of the accommodating cavity for bonding with the adhesive part.

[0006] In some embodiments, the solid glue includes a first glue segment and a second glue segment disposed opposite to each other along a first direction, and the mounting base includes a first base segment and a second base segment disposed opposite to each other along the first direction;

[0007] The first adhesive segment is provided on the first base segment and forms a first adhesive surface for bonding with a first adhesive member, and the second adhesive segment is provided on the second base segment and forms a second adhesive surface for bonding with a second adhesive member;

[0008] Wherein, the weak portion is provided at the first adhesive segment and the first base segment, and / or the weak portion is provided at the second adhesive segment and the second base segment.

[0009] In some embodiments, the solid glue further comprises a third glue segment, and the mounting base further comprises a third base segment;

[0010] The first base section includes a first base body and a second base body extending along the second direction and connected to each other, and the first glue section includes a first glue body and a second glue body extending along the second direction and connected to each other.

[0011] The first colloid and the third colloid segment are respectively arranged on two outer surfaces of the first colloid that are arranged opposite to each other along the first direction, and the second colloid is arranged on the outer surface of the second base body;

[0012] The third base segment extends along the first direction and is connected to one end of the second base body away from the first base body along the second direction. One end of the second base segment is connected to the third base segment, and the other end of the second base segment is bonded to the third adhesive segment.

[0013] The second base, the third base segment and the second base segment jointly define the accommodating cavity, and the first direction and the second direction are arranged to intersect.

[0014] In some embodiments, the second base segment includes a main body segment, a bend base segment, and a connecting base segment. The main body segment and the connecting base segment both extend along the second direction and are spaced apart in the first direction. One end of the main body segment is connected to the third base segment, the other end of the main body segment is connected to one end of the bend base segment, and the other end of the bend base segment is connected to the connecting base segment. The inner surface of the connecting base segment is bonded to the third adhesive segment.

[0015] The second rubber segment includes a main body rubber segment, a bend rubber segment and a connecting rubber segment which are connected to each other in sequence. The main body rubber segment is arranged on the outer surface of the main body base segment, the bend rubber is arranged on the outer surface of the bend base segment, and the connecting rubber segment is arranged on the outer surface of the connecting base segment; the weak portion is arranged on the main body base segment and the main body rubber segment.

[0016] In some embodiments, the weak portion includes a preset gap extending along the first direction and separated from the accommodating cavity, the preset gap is used to communicate with the outside world, and when the pressure applied to the weak portion in the first direction is not less than a first preset pressure, the preset gap is connected to the accommodating cavity to construct a flow channel, and the flow channel is used to connect the outside world and the accommodating cavity.

[0017] According to the second aspect of the embodiment of the present disclosure, a bonding assembly is also provided, which includes a first bonding member, a second bonding member and the bonding glue, the solid glue includes a first bonding surface and a second bonding surface, the first bonding member is bonded to the first bonding surface, and the second bonding member is bonded to the second bonding surface; wherein the first bonding member and / or the second bonding member is provided with a bonding groove, and the bonding groove is arranged opposite to the weak portion to accommodate the semi-fluid curing glue flowing out of the accommodating cavity.

[0018] In some embodiments, the first adhesive member is configured as a lower polarizer of a display screen, and the second adhesive member is configured as a backlight frame of a display screen; wherein the adhesive groove is provided in the backlight frame; or,

[0019] The first adhesive member is configured as a display screen cover, and the second adhesive member is configured as a middle frame structure of a terminal device; wherein the adhesive groove is provided in the middle frame structure; or,

[0020] The first adhesive component is configured as a battery cover of the terminal device, and the second adhesive component is configured as a middle frame structure of the terminal device; wherein the adhesive groove is provided in the middle frame structure.

[0021] In some embodiments, the bonding groove is gradually expanded in a direction away from the bonding glue.

[0022] According to a second aspect of an embodiment of the present disclosure, a bonding method for a bonding assembly is further provided. The bonding method is applied to the bonding assembly, and the bonding method includes:

[0023] The bonding groove is arranged opposite to the weak portion;

[0024] Adhere the first adhesive member to the first adhesive surface, and adhere the second adhesive member to the second adhesive surface;

[0025] Applying a force no less than the first preset pressure to the weak portion to make the semi-fluid curing adhesive flow from the accommodating cavity into the bonding groove;

[0026] After the semi-fluid curing adhesive flows into the bonding groove, the semi-fluid curing adhesive is left to stand for a first period of time to allow the semi-fluid curing adhesive to cure.

[0027] According to a third aspect of the embodiments of the present disclosure, a terminal device is further provided, and the terminal device includes the bonding assembly.

[0028] The technical solution provided by the embodiments of the present disclosure may include the following beneficial effects: by setting at least one weak portion, and when the pressure applied to the weak portion is not less than a first preset pressure, the weak portion can break, so that the semi-fluid curing glue set in the accommodating cavity can flow out and bond with the adhesive part, thereby improving the bonding strength between different adhesive parts and avoiding the occurrence of debonding.

[0029] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0031] Figure 1 It is a schematic structural diagram of an adhesive according to an embodiment of the present invention.

[0032] Figure 2 It is a schematic structural diagram of an adhesive according to another embodiment of the present invention.

[0033] Figure 3 This is a cross-sectional schematic diagram of a terminal device according to an embodiment of the present disclosure, wherein the adhesive is arranged between the lower polarizer and the backlight adhesive frame; and the adhesive is arranged between the display cover and the middle frame structure; and the adhesive is arranged between the battery cover and the middle frame structure.

[0034] Figure 4 1 is a flow chart of a bonding method of a bonding assembly according to an embodiment of the present disclosure.

[0035] Description of Reference Numerals

[0036] 1. Mounting base; 11. First base section; 111. First base; 112. Second base; 12. Second base section; 121. Body base section; 122. Bend base section; 123. Connecting base section; 13. Third base section; 2. Solid glue; 21. First glue section; 210. First bonding surface; 211. First glue; 212. Second glue; 22. Second glue section; 220. Second bonding surface; 221. Body glue section; 222. Bend Folding glue section; 223, connecting glue section; 23, third glue section; 3, semi-fluid curing glue; 10, accommodating cavity; 100, adhesive glue; 1001, weak part; 1002, flow channel; 200, lower polarizer; 300, backlight glue frame; 400, display screen cover; 500, middle frame structure; 600, battery cover; 1000, adhesive groove; 2000, liquid crystal display; 4000, light guide component; A, first direction; B, second direction. DETAILED DESCRIPTION

[0037] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0038] In this disclosure, unless otherwise stated, directional words such as "first direction, second direction" may refer to Figure 1 and Figure 2 As shown; the directional words used such as "inside" and "outside" refer to the inside and outside of the specific structural outline; the terms used such as "first" and "second" are only used to distinguish one element from another element, and do not have order and importance.

[0039] Reference Figures 1 to 3 As shown, an adhesive 100 is disclosed. The adhesive 100 includes a mounting base 1, a solid adhesive 2, and a semi-fluid curing adhesive 3. The solid adhesive 2 is at least partially disposed on the outer surface of the mounting base 1 and includes at least two bonding surfaces for bonding to different adhesive components. The mounting base 1 defines a closed accommodating cavity 10, and the semi-fluid curing adhesive 3 is disposed within the accommodating cavity 10. The mounting base 1 and the solid adhesive 2 are provided with at least one weak portion 1001. The weak portion 1001 is configured such that, when subjected to a pressure not less than a first preset pressure, the weak portion 1001 can break, allowing the semi-fluid curing adhesive 3 to flow out of the accommodating cavity 10 for bonding to the adhesive component.

[0040] In the above technical solution, at least one weak portion 1001 is provided, and when the pressure applied to the weak portion 1001 is not less than a first preset pressure, the weak portion 1001 can break, so that the semi-fluid curing glue 3 provided in the accommodating cavity 10 can flow out and bond with the adhesive part, thereby improving the bonding strength between different adhesive parts and avoiding the occurrence of debonding.

[0041] For example, the above-mentioned adhesive 100 can be applied to the liquid crystal display screen 2000. The adhesive 100 is used to be arranged between the lower polarizer 200 and the backlight adhesive frame 300 inside the liquid crystal display screen 2000. The backlight adhesive frame 300 is provided with an adhesive groove 1000 arranged opposite to the weak portion 1001, and the adhesive groove 1000 can be used to accommodate the semi-fluid curing adhesive 3 flowing out of the accommodating cavity 10, effectively increasing the bonding area without increasing the bonding width of the backlight adhesive frame 300, thereby improving the bonding strength and avoiding the occurrence of debonding.

[0042] In one embodiment, reference Figure 1 and Figure 2 As shown, the solid adhesive 2 includes a first adhesive segment 21 and a second adhesive segment 22 disposed opposite each other along a first direction A. The mounting base 1 includes a first base segment 11 and a second base segment 12 disposed opposite each other along the first direction A. The first adhesive segment 21 is disposed on the first base segment 11 and forms a first bonding surface 210 for bonding with a first adhesive component. The second adhesive segment 22 is disposed on the second base segment 12 and forms a second bonding surface 220 for bonding with a second adhesive component. A weakened portion 1001 is provided on the first adhesive segment 21 and the first base segment 11, and / or on the second adhesive segment 22 and the second base segment 12.

[0043] In this embodiment, the weak portion 1001 can be provided in the first adhesive segment 21 and the first base segment 11, and the weak portion 1001 can be provided opposite to the first adhesive member, and can be bonded to the first adhesive member after the semi-fluid curing adhesive 3 flows out of the accommodating cavity 10. Alternatively, the weak portion 1001 can be provided in the second adhesive segment 22 and the second base segment 12, and the weak portion 1001 can be provided opposite to the second adhesive member, and can be bonded to the second adhesive member after the semi-fluid curing adhesive 3 flows out of the accommodating cavity 10. Alternatively, two weak portions 1001 can be provided, that is, the weak portion 1001 is provided both in the first adhesive segment 21 and the first base segment 11, and in the second adhesive segment 22 and the second base segment 12, and can be bonded to either the first adhesive member or the second adhesive member after the semi-fluid curing adhesive 3 flows out of the accommodating cavity 10. This disclosure is not limited to this.

[0044] Optionally, refer to Figure 1 As shown, the solid glue 2 also includes a third glue segment 23, and the mounting base 1 also includes a third base segment 13. The first base segment 11 includes a first base 111 and a second base 112 extending along the second direction B and connected to each other. The first glue segment 21 includes a first glue body 211 and a second glue body 212 extending along the second direction B and connected to each other. The first glue body 211 and the third glue segment 23 are respectively disposed on two outer surfaces of the first glue body 211 that are opposite to each other along the first direction A, and the second glue body 212 is disposed on the outer surface of the second glue body 112. The third base segment 13 extends along the first direction A and is connected to one end of the second glue body 112 that is away from the first base 111 along the second direction B. One end of the second base segment 12 is connected to the third base segment 13, and the other end of the second base segment 12 is bonded to the third glue segment 23. The second base 112, the third base segment 13, and the second base segment 12 collectively define a accommodating cavity 10, where the first direction A intersects the second direction B.

[0045] In this embodiment, the first adhesive segment 21 can be bonded to the first adhesive component, the second adhesive segment 22 can be bonded to the second adhesive component, and the third adhesive segment 23 can be bonded to the third adhesive component, thereby achieving bonding between different adhesive components. In addition, the second base body 112, the third base segment 13, and the second base segment 12 jointly define the accommodating cavity 10. The weak portion 1001 can be provided in the second adhesive body 212 and the second base body 112, and / or the weak portion 1001 can be provided in the second base segment 12 and the second adhesive segment 22. The semi-fluid curing adhesive 3 flowing out of the accommodating cavity 10 can be bonded to the first adhesive component and / or the second adhesive component, thereby improving the bonding strength between the different adhesive components and preventing debonding.

[0046] For example, the above-mentioned first adhesive component can be constructed as the lower polarizer 200 inside the liquid crystal display screen 2000, the second adhesive component can be constructed as the backlight glue frame 300 inside the liquid crystal display screen 2000, and the backlight glue frame 300 is provided with a bonding groove 1000 for accommodating the semi-fluid curing glue 3, and the third adhesive component can be constructed as the light guide component 4000 inside the liquid crystal display screen 2000, and the weak portion 1001 is provided in the second base section 12 and the second glue section 22. When the weak portion 1001 is broken, the semi-fluid curing glue 3 in the accommodating cavity 10 flows into the bonding groove 1000 and gradually solidifies, thereby effectively increasing the bonding area without increasing the bonding width of the backlight glue frame 300, thereby improving the bonding strength and avoiding the problem of debonding.

[0047] Reference Figure 1 As shown, the second base segment 12 includes a main body segment 121, a bend segment 122, and a connecting segment 123. The main body segment 121 and the connecting segment 123 all extend along the second direction B and are spaced apart in the first direction A. One end of the main body segment 121 is connected to the third base segment 13, the other end of the main body segment 121 is connected to one end of the bend segment 122, and the other end of the bend segment 122 is connected to the connecting segment 123. The inner surface of the connecting segment 123 is bonded to the third adhesive segment 23. The second adhesive segment 22 includes a main body adhesive segment 221, a bend adhesive segment 222, and a connecting adhesive segment 223, which are sequentially connected to each other. The main body adhesive segment 221 is disposed on the outer surface of the main body segment 121, the bend adhesive segment 222 is disposed on the outer surface of the bend segment 122, and the connecting adhesive segment 223 is disposed on the outer surface of the connecting segment 123. The weak portion 1001 is disposed on the main body segment 121 and the main body adhesive segment 221.

[0048] In this embodiment, by configuring the second base segment 12 to include three parts, namely, the main body base segment 121, the bend base segment 122, and the connecting base segment 123, it is convenient to enclose the accommodating cavity 10 with the first base segment 11 and the third base segment 13; in addition, by configuring the second rubber segment 22 to include three parts, namely, the main body rubber segment 221, the bend rubber segment 222, and the connecting rubber segment 223, it is convenient to fit the second rubber segment 22 to the main body base segment 121, the bend base segment 122, and the connecting base segment 123, thereby preventing the second rubber segment 22 from detaching from the second base segment 12.

[0049] In other embodiments, referring to Figure 2 As shown, the mounting base 1 of the adhesive 100 is constructed into a rectangular shape in the cross-section defined by the first direction A and the second direction B, and the solid adhesive 2 is covered and arranged on the mounting base 1, and the solid adhesive 2 is also constructed into a rectangular shape in the cross-section defined by the first direction A and the second direction B.

[0050] In an alternative embodiment, referring to Figure 1 and Figure 2 As shown, the weak portion 1001 includes a preset gap extending along the first direction A and separated from the accommodating cavity 10. The preset gap is used to communicate with the outside world, and when the pressure applied to the weak portion 1001 in the first direction A is not less than the first preset pressure, the preset gap is connected with the accommodating cavity to construct a flow channel 1002. The flow channel 1002 is used to connect the outside world and the accommodating cavity 10, but the present disclosure does not limit the specific structure of the weak portion 1001.

[0051] Furthermore, the mounting base 1 can be made of any suitable material, for example, PET (polyethylene terephthalate), providing a mounting base for the solid adhesive 2 and the semi-fluid curing adhesive 3. The solid adhesive 2 can be made of any suitable material, for example, acrylate or polyurethane. Furthermore, the semi-fluid curing adhesive 3 can be made of any suitable material, for example, epoxy resin adhesive.

[0052] The present disclosure further provides an adhesive assembly, which includes a first adhesive member, a second adhesive member and the above-mentioned adhesive glue 100, and the solid glue 2 includes a first adhesive surface 210 and a second adhesive surface 220, the first adhesive member is bonded to the first adhesive surface 210, and the second adhesive member is bonded to the second adhesive surface 220; wherein, the first adhesive member and / or the second adhesive member is provided with an adhesive groove 1000, and the adhesive groove 1000 is arranged opposite to the weak portion 1001 to accommodate the semi-fluid curing glue 3 flowing out of the accommodating cavity 10.

[0053] In the above technical solution, by setting a bonding groove 1000 on the first adhesive part and / or the second adhesive part, and the bonding groove 1000 is set opposite to the weak part 1001 to accommodate the semi-fluid curing glue 3 flowing out of the accommodating cavity 10, the bonding area can be effectively increased, the bonding strength can be improved, and the first adhesive part and the second adhesive part can be prevented from debonding.

[0054] The first adhesive member and the second adhesive member may be constructed in any appropriate structure, which is not limited in the present disclosure.

[0055] For example, the first adhesive component can be constructed as the lower polarizer 200 of the display screen, and the second adhesive component can be constructed as the backlight glue frame 300 of the display screen; wherein, the adhesive groove 1000 is provided on the backlight glue frame 300, which effectively increases the adhesive area without increasing the adhesive width of the backlight glue frame 300, improves the adhesive strength between the lower polarizer 200 and the backlight glue frame 300, prevents the glue from coming apart, and effectively reduces the size of the terminal device frame. In addition, the height of the backlight glue frame 300 can be appropriately reduced, and the height can be adapted to the light guide component 4000 to avoid the increase in thickness caused by the setting of the adhesive 100. In addition, the adhesive groove 1000 can be provided on the three sides of the backlight glue frame 300 that are not adjacent to the LED light.

[0056] For example, the first adhesive component can be constructed as a display cover 400, and the second adhesive component can be constructed as a middle frame structure 500 of the terminal device; wherein, the adhesive groove 1000 is arranged in the middle frame structure 500 to enhance the bonding strength between the display cover 400 and the middle frame structure 500.

[0057] For example, the above-mentioned first adhesive component can be constructed as the battery cover 600 of the terminal device, and the second adhesive component can be constructed as the middle frame structure 500 of the terminal device; wherein, the adhesive groove 1000 is arranged in the middle frame structure 500 to enhance the bonding strength between the battery cover 600 and the middle frame structure 500.

[0058] In addition, refer to Figure 3 As shown, the bonding groove 1000 can be gradually expanded in the direction away from the adhesive 100, that is, the cross-section of the bonding groove 1000 can be constructed in the shape of a dovetail groove. When the semi-fluid curing glue 3 flows into the bonding groove 1000 and is cured, it is stuck in the bonding groove 1000 and is not easy to detach from the bonding groove 1000, thereby improving the firmness of the bonding.

[0059] In other embodiments, the bonding groove 1000 can be obtained by milling. During the machining, a tail back groove (not shown) can be provided to facilitate the entry and exit of the milling cutter. That is, when machining the bonding groove 1000, the tool can start machining from the back groove and finally exit from the back groove. The design of the tail back groove can be used to avoid components of the middle frame structure 500, facilitating the machining of the bonding groove 1000. For example, the tail back groove can be provided at the front shell support column (not shown) of the middle frame structure. In addition, the bonding groove 1000 can be rounded to avoid sharp corners and burrs at the end of the material.

[0060] Reference Figure 4 As shown, the present disclosure provides a bonding method for a bonding assembly, the bonding method is applied to the above-mentioned bonding assembly, and the bonding method includes:

[0061] S11; The bonding groove 1000 is disposed opposite to the weak portion 1001;

[0062] S12: Adhere the first adhesive member to the first adhesive surface 210, and adhere the second adhesive member to the second adhesive surface 220;

[0063] S13; applying a force not less than a first preset pressure to the weak portion 1001 so that the semi-fluid curing adhesive 3 flows from the accommodating cavity 10 into the bonding groove 1000;

[0064] S14: After the semi-fluid curing adhesive 3 flows into the bonding groove 1000, it is left to stand for a first period of time to allow the semi-fluid curing adhesive 3 to cure.

[0065] By providing the bonding groove 1000 , which is arranged opposite to the weak portion 1001 to accommodate the semi-fluid curing adhesive 3 flowing out of the accommodating cavity 10 , the bonding area can be effectively increased, the bonding strength can be improved, and debonding can be avoided.

[0066] The present disclosure further provides a terminal device, which includes the above-mentioned bonding assembly.

[0067] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0068] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An adhesive, characterized in that: The adhesive comprises a mounting base, solid adhesive, and semi-fluid curing adhesive, wherein the solid adhesive is at least partially disposed on an outer surface of the mounting base and comprises at least two adhesive surfaces for bonding to different adhesive members; the mounting base defines a closed accommodating cavity, and the semi-fluid curing adhesive is disposed within the accommodating cavity; Wherein, the mounting base and the solid glue are provided with at least one weak portion, and the weak portion is constructed so that: when the pressure received is not less than a first preset pressure, the weak portion can break, so that the semi-fluid curing glue can flow out of the accommodating cavity for bonding with the adhesive part.

2. The adhesive according to claim 1, characterized in that The solid glue comprises a first glue segment and a second glue segment disposed opposite to each other along a first direction, and the mounting base comprises a first base section and a second base section disposed opposite to each other along the first direction; The first adhesive segment is provided on the first base segment and forms a first adhesive surface for bonding with a first adhesive member, and the second adhesive segment is provided on the second base segment and forms a second adhesive surface for bonding with a second adhesive member; Wherein, the weak portion is provided at the first adhesive segment and the first base segment, and / or the weak portion is provided at the second adhesive segment and the second base segment.

3. The adhesive according to claim 2, characterized in that: The solid glue further includes a third glue segment, and the mounting base further includes a third base segment; The first base section includes a first base body and a second base body extending along the second direction and connected to each other, and the first glue section includes a first glue body and a second glue body extending along the second direction and connected to each other. The first colloid and the third colloid segment are respectively arranged on two outer surfaces of the first colloid that are arranged opposite to each other along the first direction, and the second colloid is arranged on the outer surface of the second base body; The third base segment extends along the first direction and is connected to one end of the second base body away from the first base body along the second direction. One end of the second base segment is connected to the third base segment, and the other end of the second base segment is bonded to the third adhesive segment. The second base, the third base segment and the second base segment jointly define the accommodating cavity, and the first direction and the second direction are arranged to intersect.

4. The adhesive according to claim 3, characterized in that: The second base segment includes a main body segment, a bend base segment, and a connecting base segment. The main body segment and the connecting base segment both extend along the second direction and are spaced apart in the first direction. One end of the main body segment is connected to the third base segment, the other end of the main body segment is connected to one end of the bend base segment, and the other end of the bend base segment is connected to the connecting base segment. The inner surface of the connecting base segment is bonded to the third adhesive segment. The second rubber segment includes a main body rubber segment, a bend rubber segment and a connecting rubber segment which are connected to each other in sequence. The main body rubber segment is arranged on the outer surface of the main body base segment, the bend rubber is arranged on the outer surface of the bend base segment, and the connecting rubber segment is arranged on the outer surface of the connecting base segment; the weak portion is arranged on the main body base segment and the main body rubber segment.

5. The adhesive according to claim 1, characterized in that: The weak portion includes a preset gap extending along the first direction and separated from the accommodating cavity. The preset gap is used to communicate with the outside world, and when the pressure applied to the weak portion in the first direction is not less than a first preset pressure, the preset gap is connected to the accommodating cavity to form a flow channel. The flow channel is used to connect the outside world and the accommodating cavity.

6. A bonding assembly, characterized in that: The adhesive assembly includes a first adhesive member, a second adhesive member and the adhesive glue described in any one of claims 1-5, the solid glue includes a first adhesive surface and a second adhesive surface, the first adhesive member is bonded to the first adhesive surface, and the second adhesive member is bonded to the second adhesive surface; wherein, the first adhesive member and / or the second adhesive member is provided with an adhesive groove, and the adhesive groove is arranged opposite to the weak portion to accommodate the semi-fluid curing glue flowing out of the accommodating cavity.

7. The bonding assembly according to claim 6, wherein: The first adhesive member is configured as a lower polarizer of the display screen, and the second adhesive member is configured as a backlight frame of the display screen; wherein the adhesive groove is provided in the backlight frame; or, The first adhesive member is configured as a display screen cover, and the second adhesive member is configured as a middle frame structure of the terminal device; wherein the adhesive groove is provided in the middle frame structure; or, The first adhesive component is configured as a battery cover of the terminal device, and the second adhesive component is configured as a middle frame structure of the terminal device; wherein the adhesive groove is provided in the middle frame structure.

8. The bonding assembly according to claim 6, wherein: The bonding groove is gradually expanded in a direction gradually away from the bonding glue.

9. A method for bonding an adhesive assembly, characterized in that: The bonding method is applied to the bonding assembly according to any one of claims 6 to 8, and the bonding method comprises: The bonding groove is arranged opposite to the weak portion; Adhere the first adhesive member to the first adhesive surface, and adhere the second adhesive member to the second adhesive surface; Applying a force no less than the first preset pressure to the weak portion to make the semi-fluid curing adhesive flow from the accommodating cavity into the bonding groove; After the semi-fluid curing adhesive flows into the bonding groove, the semi-fluid curing adhesive is left to stand for a first period of time to allow the semi-fluid curing adhesive to cure.

10. A terminal device, characterized in that: The terminal device comprises the bonding assembly according to any one of claims 6 to 8.

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