Bonding assembly, electronic equipment and foldable equipment

Abstract

The utility model relates to the field of electronic equipment, aims to solve the problem of lateral slippage of a mounting part when the electronic equipment is assembled, and provides a bonding assembly, the electronic equipment and foldable equipment. The bonding assembly comprises a basic part, a bonding structure and a mounting part. The basic part is provided with a glue containing groove. The basic part is provided with a supporting part, the supporting part is provided with a first supporting face and a second supporting face, the first supporting face and the second supporting face are spaced in the first direction, and the orientation of the first supporting face is different from that of the second supporting face. The bonding structure comprises liquid glue and solid glue. The liquid glue is contained in the glue containing groove, and the solid glue is arranged on the supporting face. And the mounting piece is adhered to the glue containing groove of the basic piece through liquid glue, and is adhered to the first supporting surface and the second supporting surface through solid glue. The beneficial effects of the utility model are that the installation member is not easy to slide laterally during assembly, the installation precision is high, and the bonding is firm and reliable.

Description

Technical Field

[0001] The present application relates to the field of electronic devices, and in particular, to adhesive components, electronic devices and foldable devices. Background Art

[0002] When assembling electronic devices such as mobile phones and tablet computers, some structural parts of the electronic devices need to be glued together. For example, the screen or back cover of a mobile phone may need to be glued to the middle frame.

[0003] In some known technologies, when a mounting component (such as a screen) is pressed and assembled onto a base component (such as a middle frame), the mounting component may slide laterally relative to the base component, thereby affecting the assembly accuracy of the mounting component and the base component. Utility Model Content

[0004] The present application provides an adhesive assembly, an electronic device and a foldable device to solve the problem of lateral sliding of mounting parts during assembly of the electronic device.

[0005] In a first aspect, an embodiment of the present application provides an adhesive assembly for an electronic device, comprising a base member, an adhesive structure, and a mounting member. The base member is provided with a glue groove; the base member has a supporting portion, the supporting portion has a first supporting surface and a second supporting surface, the first supporting surface and the second supporting surface are spaced apart along a first direction, and the orientation of the first supporting surface is different from the orientation of the second supporting surface. The adhesive structure comprises liquid glue and solid glue; the liquid glue is contained in the glue groove. The mounting member is bonded to the glue groove of the base member by liquid glue, and the mounting member is bonded to the first supporting surface and the second supporting surface by solid glue.

[0006] In the adhesive assembly of the embodiment of the present application, when the mounting part needs to be assembled to the base part, solid glue is first applied to the first support surface and the second support surface, and liquid glue is injected into the glue tank, and then the mounting part is pressed to the base part. In this way, the mounting part can be quickly bonded to the first support surface and the second support surface of the base part through the solid glue, which can avoid the problem of the mounting part slipping relative to the base part due to the different directions of the first support surface and the second support surface, and ensure the accurate installation position of the mounting part on the base part; after the liquid glue is cured, the mounting part is bonded to the base part through the cured liquid glue at the same time, so that a reliable bonding with accurate position is formed between the mounting part and the base part.

[0007] In a possible implementation, the mounting member is located on one side of the base member along the second direction. The second support surface is oriented parallel to the second direction. The first support surface and the second support surface form an acute angle.

[0008] In this embodiment, the first supporting surface can be set as an inclined surface or an arc surface, which is beneficial to improving the appearance effect.

[0009] In a possible implementation, the mounting member is plate-shaped, and includes a plane area and a top curved surface area, the top curved surface area is connected to an end of the plane area along the first direction close to the first supporting surface, and an end of the plane area along the first direction away from the top curved surface area includes a bottom plane area. The first supporting surface is parallel to the top curved surface area, and the second supporting surface is parallel to the bottom plane area.

[0010] In this embodiment, the top curved surface area and the bottom flat surface area of ​​the mounting member can be well supported and connected to the first supporting surface and the second supporting surface, the connection is reliable, and it is beneficial to improve the appearance effect.

[0011] In a possible implementation manner, the solid glue is ring-shaped, and the solid glue is divided into multiple sections in the circumferential direction.

[0012] In this embodiment, the solid glue is annular, which is conducive to fixing the mounting member on all sides of the circumference and preventing the mounting member from sliding sideways. The disconnection of the solid glue is conducive to structural avoidance and / or preventing the solid glue from sticking unevenly and warping.

[0013] In a possible implementation, the solid glue includes a first glue strip and a second glue strip, the first glue strip is bonded between the first supporting surface and the mounting component, and the second glue strip is bonded between the second supporting surface and the mounting component.

[0014] In this embodiment, the mounting piece is bonded to the first support surface and the second support surface by the first rubber strip and the second rubber strip, which can ensure that the mounting piece is firmly bonded to the support portion during assembly, and further prevent the mounting piece from sliding sideways during assembly.

[0015] In a possible implementation, the glue groove is an annular groove; the support portion is annular, and the support portion is located on the inner side of the glue groove. The support portion is also provided with a third support surface and a fourth support surface, the third support surface and the fourth support surface are spaced along a third direction, and the first support surface, the third support surface, the second support surface and the fourth support surface are connected end to end to form an annular support surface, and the support surface is used to install the mounting member; wherein the third direction is perpendicular to the first direction. The solid glue also includes a third glue strip and a fourth glue strip, the third glue strip is bonded between the third support surface and the mounting member, and the fourth glue strip is bonded between the fourth support surface and the mounting member.

[0016] In this embodiment, the bonding effect of the third rubber strip and the second rubber strip can further prevent the mounting member from sliding sideways during assembly.

[0017] In a possible implementation, the first support surface, the third support surface, and the fourth support surface are oriented to face outwards. The first support surface and the third support surface are transitionally connected via a first transition surface, and the first support surface and the fourth support surface are transitionally connected via a second transition surface; both the first transition surface and the second transition surface are bidirectional curved surfaces. The disconnection point of the solid glue at least includes a point corresponding to the first transition surface and a point corresponding to the second transition surface.

[0018] This implementation can prevent the solid glue from warping at the first transition surface and the second transition surface, thereby affecting the flat and tight adhesion of the mounting member.

[0019] In a possible implementation, the second support surface is perpendicularly oriented toward the mounting member, and the third support surface and the fourth support surface are oriented in an inclined manner toward the outside. The second support surface and the third support surface are transitionally connected via a third transition surface, and the second support surface and the fourth support surface are transitionally connected via a fourth transition surface; the third transition surface and the fourth transition surface are both unidirectional curved surfaces. The solid glue is in a continuous state at the third transition surface and the fourth transition surface.

[0020] In this embodiment, the solid glue is continuous at the third transition surface and the fourth transition surface, which can improve the integration of the structure at this location.

[0021] In a possible implementation, the solid adhesive is a double-sided adhesive, the width of the solid adhesive is ≥ 0.6 mm, and / or the thickness of the solid adhesive is 0.1 mm to 0.25 mm.

[0022] In this embodiment, the limitation of the width range and thickness range of the solid glue can ensure that the solid glue provides reliable bonding ability.

[0023] In a possible embodiment, the base member also includes an annular outer peripheral wall, the support portion is annular and connected to the inner side of the outer peripheral wall; the glue containing groove is formed at the junction of the outer peripheral wall and the support portion, and the support portion is located on the inner side of the glue containing groove.

[0024] In this embodiment, the liquid glue contained in the glue containing groove and the solid glue attached to the supporting part can achieve the bonding of the mounting part with internal and external spacing, and the connection is reliable.

[0025] In a possible implementation, the base component is a middle frame, and the mounting component is a display screen, a battery cover, or a camera decorative component.

[0026] This embodiment shows possible selections of base members and mounting members.

[0027] In a second aspect, an embodiment of the present application provides an electronic device, which includes the aforementioned adhesive assembly, wherein the base member is a middle frame of the electronic device, and the mounting member is a back cover of the electronic device or a glass cover of a display screen.

[0028] The electronic device in this embodiment uses the above-mentioned adhesive assembly, and the glass cover plate of the rear cover or display screen is not prone to lateral slippage when being assembled to the middle frame.

[0029] In a possible implementation, the electronic device is a straight-panel device, and the mounting member is a glass cover plate of a display screen of the straight-panel device. The width direction of the display screen is parallel to the first direction. The display screen is a single-sided curved screen with a curved surface on one side and a flat surface on the other side along the width direction. The curved surface side of the glass cover plate along the width direction is connected to the first supporting surface, and the flat surface side of the glass cover plate along the width direction is connected to the second supporting surface.

[0030] This embodiment provides an example of application to a single-sided curved screen device, which has the technical effect of preventing the glass cover from sliding sideways during assembly.

[0031] In a third aspect, an embodiment of the present application provides a foldable device, which includes a shell assembly and a flexible screen. The shell assembly includes a first body, a second body and a hinge assembly; the first body is rotatably connected to the second body through the hinge assembly; the first body and the second body are connected along the height direction of the foldable device. The flexible screen is connected to the front of the shell assembly and covers the first body, the hinge assembly and the second body. Among them, the first body includes the aforementioned adhesive assembly, the base member of the adhesive assembly is the middle frame of the first body, and the mounting member of the adhesive assembly is the glass cover plate of the secondary display screen of the first body. The side of the secondary display screen away from the second body is a curved surface, and the side close to the second body is a flat surface. The curved surface portion of the glass cover plate of the secondary display screen away from the second body is connected to the first support surface, and the flat surface portion of the glass cover plate close to the second body is connected to the second support surface.

[0032] The embodiments of the present application provide an example of applying the above-mentioned adhesive assembly to a foldable device, which has the technical effect of preventing the glass cover from slipping laterally during assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 A schematic diagram of the structure of a foldable device in an unfolded state according to an embodiment of the present application;

[0035] Figure 2 for Figure 1 Schematic diagram of the back side of a foldable device;

[0036] Figure 3 for Figure 1 A schematic diagram of a foldable device in a folded state;

[0037] Figure 4 for Figure 1Schematic diagram of a foldable device in an intermediate state;

[0038] Figure 5 for Figure 1 A three-dimensional view of a first body of a foldable device;

[0039] Figure 6 for Figure 5 An exploded view of the first body;

[0040] Figure 7 for Figure 5 A top view of the first body with the secondary display screen hidden;

[0041] Figure 8 for Figure 5 A top view of a first body;

[0042] Fig. 9 for Figure 8 Section view along line AA;

[0043] Fig.10 for Figure 8 Sectional view along line BB;

[0044] Fig.11 for Figure 8 Sectional view along line CC;

[0045] Fig.12 for Fig.11 The enlarged view of point D;

[0046] Fig.13 for Fig.11 The enlarged view of point E;

[0047] Fig.14 for Figure 7 An exploded view of a portion of the middle frame and solid glue;

[0048] Fig.15 for Figure 7 An exploded view of the middle frame and another part of the solid glue area;

[0049] Fig.16 for Figure 7 An exploded view of the middle frame and solid glue;

[0050] Fig.17 for Figure 5 A three-dimensional view of a second body of a foldable device;

[0051] Fig.18 for Fig.17 An exploded view of the second body;

[0052] Fig.19 This is a schematic diagram of the structure of a straight-bar device according to an embodiment of the present application;

[0053] Fig. 20 for Fig.19 A cross-sectional view of a candy bar device along line FF.

[0054] Description of main component symbols:

[0055] Electronic devices 100

[0056] Foldable device 100a

[0057] Shell component 1

[0058] Flexible screen 2

[0059] First body 1a

[0060] Second body 1b

[0061] Shaft assembly 1c

[0062] Middle frame 10,50,70

[0063] Outer wall 11

[0064] Supporting part 12

[0065] Medium plate 13

[0066] Secondary display 20

[0067] Glass cover 20a, 4a

[0068] Plane Area 21

[0069] Bottom side plane area 21a

[0070] Top side curved area 22

[0071] Side curved areas 23a, 23b

[0072] Bonding structure 30

[0073] Liquid glue 31

[0074] Solid glue 32

[0075] First rubber strip 32a

[0076] Second rubber strip 32b

[0077] The third rubber strip 32c

[0078] Fourth rubber strip 32d

[0079] First rubber section 321

[0080] Second rubber section 322

[0081] The third rubber section 323

[0082] Fourth rubber section 324

[0083] Fifth rubber section 325

[0084] Sixth rubber section 326

[0085] Seventh rubber section 327

[0086] The eighth rubber section 328

[0087] Ninth rubber section 329

[0088] Camera assembly 40

[0089] Back cover 60,80

[0090] Candy bar device 100b

[0091] Body 3

[0092] Display 4

[0093] Large surface P11

[0094] Arc surface P12

[0095] Adhesive Kit M10

[0096] Base part M1

[0097] Mounting piece M2

[0098] Glue tank C1

[0099] Support surface P20

[0100] First support surface P21

[0101] Second supporting surface P22

[0102] The third support surface P23

[0103] Fourth support surface P24

[0104] First transition surface P25

[0105] Second transition surface P26

[0106] The third transition surface P27

[0107] Fourth transition surface P28

[0108] Disconnection point f1

[0109] First break point f11

[0110] Second break point f12

[0111] Marking hole K1

[0112] Height direction Y

[0113] Thickness direction Z

[0114] Pressing direction Z1

[0115] Width direction X

[0116] First direction Y1

[0117] Second direction Y2

[0118] The third direction Y3 DETAILED DESCRIPTION

[0119] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0120] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a centered element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a centered element. When an element is considered to be "set on" another element, it may be directly set on the other element or there may also be a centered element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0121] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0122] Some embodiments of the present application are described in detail. In the absence of conflict, the following embodiments and features of the embodiments can be combined with each other.

[0123] Example

[0124] This embodiment provides an electronic device, such as a mobile phone, a tablet computer, a smart wearable device (such as a smart watch, a smart bracelet, AR glasses), etc.

[0125] When assembling electronic devices, some structural parts of the electronic devices need to be glued together to achieve reliable connection and / or form a sealant line. For example, the screen or back cover of a mobile phone may need to be glued to the middle frame by glue dispensing.

[0126] Figure 1-Figure 4 The electronic device 100 shown is a foldable device 100a, and specifically may be a foldable mobile phone.

[0127] The foldable device 100a is a longitudinally foldable mobile phone, which can be folded longitudinally (or folded up and down) so that the height Y dimension of the foldable device 100a in the folded state is half or nearly half of that in the unfolded state, so as to facilitate carrying.

[0128] The foldable device 100a includes a housing assembly 1 and a flexible screen 2. The housing assembly 1 includes a first body 1a, a second body 1b and a hinge assembly 1c. The first body 1a is rotatably connected to the second body 1b through the hinge assembly 1c. The first body 1a and the second body 1b are connected along the height direction Y of the foldable device 100a through the hinge assembly 1c. The flexible screen 2 is connected to the front of the housing assembly 1 and covers the first body 1a, the hinge assembly 1c and the second body 1b.

[0129] The first body 1a includes a middle frame 10 and a secondary display screen 20. The secondary display screen 20 is connected to the middle frame 10 and is disposed on the back of the first body 1a (i.e., the surface opposite to the flexible screen 2). The secondary display screen 20 can be used to assist in displaying information such as time and weather.

[0130] In this embodiment, the flexible screen 2 can be an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED) display screen, an organic light-emitting diode (OLED) display screen, a mini organic light-emitting diode (mini organic light-emitting diode) display screen, a micro organic light-emitting diode (micro organic light-emitting diode) display screen, a quantum dot light emitting diode (QLED) display screen, etc.

[0131] In this embodiment, the secondary display screen 20 can be a light-emitting diode (LED) display screen, or it can be an active-matrix organic light-emitting diode or active-matrix organic light-emitting diode (AMOLED) display screen, an organic light-emitting diode (OLED) display screen, a mini light-emitting diode (mini organic light-emitting diode) display screen, a micro organic light-emitting diode (micro organic light-emitting diode) display screen, a quantum dot light emitting diode (QLED) display screen, etc.

[0132] The foldable device 100a in this embodiment also includes structures such as a battery, a main board, and a camera assembly. These structures can be arranged in the first body 1a or the second body 1b as needed.

[0133] For example, Figures 2 to 4 As shown in the figure, a rear camera assembly 40 is disposed on the back of the first body 1a, and the camera assembly 40 is used to shoot images or videos. In this embodiment, optionally, the secondary display screen 20 occupies the entire area of ​​the back of the first body 1a, forming a full screen on the back of the first body 1a, and the rear camera assembly 40 can be drilled out of the secondary display screen 20 from a top corner of the secondary display screen 20.

[0134] In the expanded state (see Figure 1 and Figure 2 ), the first body 1a and the second body 1b of the foldable device 100a are relatively flat, and the flexible screen 2 located on the front is also in a flat state, with a large display area. The secondary display screen 20 located on the back can display information toward the back side of the foldable device 100a, or be in a closed state to reduce power consumption.

[0135] In the folded state (such as Figure 3 ), the first body 1a and the second body 1b of the foldable device 100a are overlapped along the thickness direction Z, and the flexible screen 2 is folded in half and sandwiched between the first body 1a and the second body 1b, and is more reliably protected. The secondary display screen 20 is exposed to the outside and can still maintain the display function. That is, when the foldable device 100a is in the folded state, the user can still conveniently obtain information such as time and weather from the foldable device 100a.

[0136] See also Figure 4 Optionally, the foldable device 100a in this embodiment can also hover in an intermediate state between the unfolded state and the folded state at a certain hovering angle. The hovering angle refers to the angle between the first body 1a and the second body 1b when the foldable device 100a is stably maintained in a certain intermediate state. The hovering angle of the foldable device 100a can be one or multiple discrete ones or continuous and infinite. For example, commonly, the hovering angle is 90°, 120°, etc. At this time, the flexible screen 2 includes two parts at an angle, which can be used in split screen, that is, the two parts of the flexible screen 2 are used to display different interfaces (such as interfaces for displaying two different applications). Of course, the foldable device 100a may not have a hovering function as needed, but only have an unfolded state and a folded state.

[0137] The unfolding, folding or hovering functions of the foldable device 100a are realized by the hinge assembly 1c. The specific structure of the hinge assembly 1c can adopt the hinge assembly 1c of the known technology, which will not be described here.

[0138] The rotating shaft assembly 1c can also realize the synchronous opening and closing function and the damping function of the first body 1a and the second body 1b, which will not be elaborated here.

[0139] In some implementations of this embodiment, in the unfolded state (see Figure 2 ), the back of the foldable device 100a generally includes a large surface P11 in the middle and a circular arc surface P12 on the outer periphery, which can improve the appearance and / or grip feel of the back of the foldable device 100a. On the back of the first body 1a, the top side (i.e., the side away from the second body 1b along the height direction Y) and the left and right sides (i.e., the two sides along the width direction X) are both configured as curved surfaces extending from the large surface P11 toward the flexible screen 2, while the bottom side of the first body 1a (i.e., the side close to the second body 1b along the height direction Y) maintains a plane coplanar with the large surface P11 to ensure that the junction of the first body 1a and the second body 1b is coplanar in the unfolded state, avoiding the arc-shaped concave junction of the first body 1a and the second body 1b, which affects the overall sense of the foldable device 100a in the unfolded state.

[0140] See also Figure 5 and Figure 6 In this embodiment, the middle frame 10 of the first body 1a serves as a base component M1, the sub-display screen 20 includes an inner screen and a glass cover plate 20a, and the glass cover plate 20a of the sub-display screen 20 serves as a mounting component M2. During assembly, the glass cover plate 20a of the sub-display screen 20 (together with the inner screen of the sub-display screen 20) is bonded to the middle frame 10 through the bonding structure 30 to form an adhesive assembly M10.

[0141] In some known technologies, the bonding method of the middle frame of an electronic device and the glass cover plate of a display screen is to set glue spots on the middle frame, and then press the display screen to the middle frame along a pressing direction (parallel to the thickness direction of the electronic device). After the glue spots are cured, the glass cover plate of the display screen is reliably connected to the middle frame.

[0142] / In this embodiment, the surface of the middle frame 10 used for bonding with the glass cover plate 20a includes multiple parts in different directions. When the above-mentioned known scheme is used for bonding, during the lamination process, the direction of the combined force of the support forces of different parts of the middle frame 10 on the auxiliary display screen 20 will be inclined relative to the lamination direction, so that the combined force has a component force perpendicular to the lamination direction Z1 (the lamination direction Z1 is parallel to the thickness direction Z), so that the auxiliary display screen 20 may slide laterally along the lamination direction Z1, affecting the relative position accuracy of the auxiliary display screen 20 and the middle frame 10. At the same time, the lateral sliding of the auxiliary display screen 20 will also cause problems such as deformation of the glue line formed by the glue point or the glue point falling out of the glue holding groove of the middle frame 10, affecting the bonding quality of the auxiliary display screen 20 and the middle frame 10.

[0143] In view of this, the present embodiment provides a bonding assembly M10, which can overcome the problems in the above-mentioned known technologies and ensure that the mounting member M2 (such as the glass cover 20a) is reliably and accurately bonded to the base member M1 (such as the middle frame 10).

[0144] See also Figure 7 and Figure 8 In this embodiment, the middle frame 10 as the base member M1 is provided with a glue containing groove C1 (also shown in Fig. 9 and Fig.10 ), the glue holding groove C1 is used to hold the liquid glue 31.

[0145] The liquid glue 31 in this embodiment refers to a glue material that is in liquid state before being applied and can be cured by certain physical or chemical treatments. For example, the liquid glue 31 is a light-curing glue, AB glue, hot melt glue, etc., which can be applied to the glue holding groove C1 of the middle frame 10 in liquid state by a glue dispenser or other equipment. After the secondary display screen 20 is assembled to the middle frame 10, the liquid glue 31 is cured by light (such as ultraviolet light irradiation), chemical reaction, or cooling, so that the glass cover plate 20a is firmly bonded to the middle frame 10.

[0146] Continue to see Figure 7 and Figure 8 In this embodiment, the middle frame 10 includes an outer peripheral wall 11 and a support portion 12. The outer peripheral wall 11 is annular, and the outer surface of the outer peripheral wall 11 forms a part of the outer peripheral surface of the foldable device 100a. The support portion 12 is annular, and the support portion 12 is connected to the inner side of the outer peripheral wall 11. The outer peripheral wall 11 and the support portion 12 can also be referred to Fig. 9 and Fig.10 .

[0147] The middle frame 10 may further include a middle plate 13 located inside the support portion 12. The middle plate 13 may be used to carry components installed inside the first body 1a (such as a rear camera assembly, etc.). The middle plate 13 may have a number of openings for avoiding and / or providing positioning for other structures.

[0148] In this embodiment, the glue groove C1 is an annular groove, and the glue groove C1 is formed at the junction of the outer peripheral wall 11 and the support portion 12. In this way, after the liquid glue 31 applied in the glue groove C1 is cured, an annular rubber ring can be obtained, thereby achieving a sealing and waterproof effect between the middle frame 10 and the glass cover plate 20a.

[0149] Continue to see Figures 7 to 10 In this embodiment, the support portion 12 of the middle frame 10 has a support surface P20 on the side facing the secondary display screen 20, and the outer edge of the glass cover plate 20a is bonded to the support surface P20 by solid glue 32. The solid glue 32 mentioned here can be a double-sided adhesive, which can be attached to the support surface P20 by equipment or manually.

[0150] Optionally, the solid glue 32 in this embodiment is annular and has a plurality of break points f1. The break points f1 are used for structural avoidance or for ensuring that the solid glue 32 is pasted flatly without warping, which will be described in detail later.

[0151] In this embodiment, the outer contour of the first body 1a is roughly rectangular (such as a rounded rectangle), and the peripheral wall 11 and the support portion 12 of the middle frame 10 are also roughly rectangular. In this way, the support surface P20 of the support portion 12 includes a first support surface P21, a second support surface P22, a third support surface P23 and a fourth support surface P24, and the first support surface P21, the third support surface P23, the second support surface P22 and the fourth support surface P24 are connected end to end to form a rectangular ring-shaped support surface P20. The first support surface P21 and the second support surface P22 are spaced along the first direction Y1 (parallel to the height direction Y of the foldable device 100a), and the third support surface P23 and the fourth support surface P24 are spaced along the third direction Y3 (parallel to the width direction X of the foldable device 100a, perpendicular to the first direction Y1).

[0152] Solid glue 32 is distributed on the first supporting surface P21 , the second supporting surface P22 , the third supporting surface P23 and the fourth supporting surface P24 , and the four sides of the glass cover plate 20 a are bonded and installed by the solid glue 32 .

[0153] See also Fig. 9 and Fig.10 In this embodiment, the orientation of the first support surface P21 is different from the orientation of the second support surface P22. For example, the orientation of the second support surface P22 is parallel to the second direction Y2 (see Fig.10), wherein the second direction Y2 refers to the side of the middle frame 10 facing the glass cover plate 20a (i.e., the thickness direction Z of the first body 1a), that is, the second support surface P22 is perpendicular to the glass cover plate 20a. The direction of the first support surface P21 forms an acute angle with the second direction Y2 (see Fig. 9 ), such as the first supporting surface P21 is inclined outward, that is, the first supporting surface P21 is inclined toward a side away from the second supporting surface P22.

[0154] Correspondingly, the glass cover plate 20a is plate-shaped and includes a plane area 21 (also shown in Figure 8 ) and a top curved surface area 22, the top curved surface area 22 is connected to one end of the plane area 21 along the first direction Y1 close to the first supporting surface P21, and one end of the plane area 21 along the first direction Y1 away from the top curved surface area 22 includes a bottom plane area 21a. The first supporting surface P21 is parallel to the top curved surface area 22, and the second supporting surface P22 is parallel to the bottom plane area 21a.

[0155] Thus, during assembly, the top curved area 22 of the glass cover plate 20a is biased toward the top curved area 22 by the combined force of the support force of the first support surface P21 and the support force of the bottom flat area 21a by the second support surface P22. If the pressing method of the known technology is adopted, there is a risk of lateral slippage of the glass cover plate 20a. However, with the solution of this embodiment, due to the presence of the solid glue 32, the glass cover plate 20a will be instantly bonded to the support surface P20 (including the first support surface P21 and the second support surface P22) of the middle frame 10 by the solid glue 32 when pressed down. Even if there is a situation where the above-mentioned combined force is biased, the glass cover plate 20a will not slip laterally.

[0156] See also Figure 11-13 In this embodiment, optionally, the third support surface P23 is oriented to be inclined outward, that is, the third support surface P23 is oriented to be inclined away from the fourth support surface P24. The fourth support surface P24 is oriented to be inclined outward, that is, the fourth support surface P24 is oriented to be inclined away from the third support surface P23. Correspondingly, the glass cover plate 20a has a side curved surface area 23a and a side curved surface area 23b (also shown in FIG. 20b ) on both sides of the width direction X. Figure 8 ), in this way, the sub-display screen 20 has arc surfaces on both sides in the width direction X (parallel to the third direction Y3), so that the sub-display screen 20 has a curved screen effect, which is beneficial to improving the appearance and grip feel.

[0157] The top curved surface area 22, the side curved surface area 23a and the side curved surface area 23b of the glass cover plate 20a enable the outer periphery of the back side of the foldable device 100a to have the aforementioned arc curved surface P12 (see Figure 2). The portion of the glass cover 20a inside the top curved surface area 22, the side curved surface area 23a and the side curved surface area 23b constitutes a portion of the large surface P11 in the middle portion of the back side of the foldable device 100a.

[0158] See also Fig.14 In this embodiment, the first support surface P21 and the third support surface P23 are connected by a first transition surface P25 in an arc transition. Since the first support surface P21 is tilted outward along the height direction Y of the foldable device 100a and the third support surface P23 is tilted outward along the width direction X, in order to achieve a smooth transition, the orientation of the first transition surface P25 includes both a component tilted outward along the height direction Y and a component tilted outward along the width direction X, so that the first transition surface P25 is a bidirectional curved surface (a bidirectional curved surface refers to a surface that is tilted and curved in two directions). For the first transition surface P25 that is a bidirectional curved surface, the commonly used strip-shaped solid glue 32 (such as double-sided glue) will be lifted up along the thickness direction Z when it is attached thereto, affecting the bonding quality of the glass cover plate 20a. In this embodiment, the breaking point f1 of the solid glue 32 includes a first breaking point f11 corresponding to the first transition surface P25. The first breaking point f11 can avoid the problem of the solid glue 32 lifting up at the first transition surface P25, ensuring the smooth bonding of the glass cover plate 20a.

[0159] Similarly, the first support surface P21 and the fourth support surface P24 are connected by a second transition surface P26 (see Figure 7 ) arc transition connection, since the first support surface P21 is inclined outward along the height direction Y and the fourth support surface P24 is inclined outward along the width direction X, in order to achieve a smooth transition, the orientation of the second transition surface P26 includes both a component inclined outward along the height direction Y and a component inclined outward along the width direction X, that is, the second transition surface P26 is a bidirectional curved surface. For the second transition surface P26 that is a bidirectional curved surface, the commonly used strip-shaped solid glue 32 (such as double-sided glue) will be lifted up along the thickness direction Z when attached thereto, affecting the bonding quality of the glass cover plate 20a. In this embodiment, the disconnection point f1 of the solid glue 32 includes a second disconnection point f12 corresponding to the second transition surface P26 (as can be seen in Figure 7 ), the second disconnection point f12 can avoid the problem of the solid glue 32 warping at the second transition surface P26, ensuring the smooth bonding of the glass cover plate 20a.

[0160] See also Fig.15In this embodiment, the second support surface P22 and the third support surface P23 are transitionally connected by the third transition surface P27. Since the second support surface P22 is perpendicular to the glass cover plate 20a, and the third support surface P23 is inclined outward along the width direction X, the third transition surface P27 is a unidirectional curved surface (a unidirectional curved surface refers to a surface that is inclined and curved in one direction, or a cylindrical surface). The commonly used solid glue 32 can be bent in one direction to be attached to the unidirectional curved surface without warping. Therefore, in this embodiment, the solid glue 32 is set to be continuous at the second transition surface P26 and the fourth transition surface P28 without being disconnected.

[0161] Similarly, the second support surface P22 and the fourth support surface P24 are connected by a fourth transition surface P28 (which can be seen at Figure 7 ) transition connection. Since the second supporting surface P22 is perpendicular to the glass cover plate 20a, and the fourth supporting surface P24 is inclined outward along the width direction X, the fourth transition surface P28 is a unidirectional curved surface. The commonly used solid glue 32 can be bent in one direction to be attached to the unidirectional curved surface without warping. Therefore, in this embodiment, the solid glue 32 is set to be continuous at the second transition surface P26 and the fourth transition surface P28 without being disconnected.

[0162] See also Fig.16 In this embodiment, the solid glue 32 is annular, and the solid glue 32 is broken into multiple sections in the circumferential direction. There is no solid glue 32 entity at the breaking point f1, and structural avoidance can be achieved. For example, it can be used to avoid the area where the marking hole K1 on the middle frame 10 is located, wherein the marking hole K1 is used to visually locate the middle frame 10 when assembling the secondary display screen 20 to the middle frame 10, ensuring that the secondary display screen 20 is accurately aligned and assembled.

[0163] In this embodiment, the solid glue 32 includes a first glue strip 32a, a second glue strip 32b, a third glue strip 32c and a fourth glue strip 32d. The first glue strip 32a is bonded between the first support surface P21 and the glass cover plate 20a, the second glue strip 32b is bonded between the second support surface P22 and the glass cover plate 20a; the third glue strip 32c is bonded between the third support surface P23 and the glass cover plate 20a, and the fourth glue strip 32d is bonded between the fourth support surface P24 and the glass cover plate 20a.

[0164] The first rubber strip 32a is divided into three sections, which are respectively defined as a first rubber section 321 , a second rubber section 322 and a third rubber section 323 . The second rubber section 322 is located between the first rubber section 321 and the third rubber section 323 .

[0165] The second rubber strip 32b is broken into two sections, which are respectively defined as a fourth rubber section 324 and a fifth rubber section 325. The fourth rubber section 324 and the fifth rubber section 325 are respectively located at two ends of the second support surface P22 in the length direction.

[0166] The third rubber strip 32 c is broken into two segments, which are defined as a sixth rubber segment 326 and a seventh rubber segment 327 .

[0167] The fourth rubber strip 32d is broken into two segments, which are defined as an eighth rubber segment 328 and a ninth rubber segment 329 respectively.

[0168] There is the aforementioned first disconnection point f11 between the sixth adhesive segment 326 and the first adhesive segment 321, and there is the aforementioned second disconnection point f12 between the eighth adhesive segment 328 and the third adhesive segment 323. The first disconnection point f11 corresponds to the first transition surface P25, and the second disconnection point f12 corresponds to the second transition surface P26. That is, the first transition surface P25 and the second transition surface P26 are not provided with solid adhesive 32, so that the solid adhesive 32 attached to the first transition surface P25 and the second transition surface P26 of the bidirectional curved surface can be avoided, resulting in the solid adhesive 32 being unable to be attached flatly and bulging at that place, causing the auxiliary display screen 20 attached thereto to float.

[0169] The fourth adhesive segment 324 and the seventh adhesive segment 327 are transitionally connected at the third transition surface P27 without being disconnected, thereby improving the integrity of the connection. Moreover, since the third transition surface P27 is a unidirectional curved surface, the solid adhesive 32 there will not warp.

[0170] Similarly, the fifth adhesive segment 325 and the eighth adhesive segment 328 are transitionally connected at the fourth transition surface P28 without being disconnected, thereby improving the integrity of the connection. Moreover, since the fourth transition surface P28 is a unidirectional curved surface, the solid adhesive 32 there will not warp.

[0171] In this embodiment, optionally, the width d of the solid glue 32 is ≥ 0.6 mm, and the thickness is 0.1 mm to 0.25 mm. In this way, the bonding strength of the solid glue 32 to the glass cover plate 20 a and the middle frame 10 can be ensured, further avoiding slippage when the secondary display screen 20 is assembled to the middle frame 10 .

[0172] In this embodiment, optionally, the inner edge of the solid glue 32 is retracted from the inner side edge of the support surface P20 by a distance of ≥0.4mm to avoid the structure inside the support portion 12. In this way, even if the solid glue 32 is deformed and protruded laterally after being pressed between the middle frame 10 and the glass cover plate 20a, it will not interfere with the inner structural parts. Similarly, the outer edge of the solid glue is retracted from the outer side edge of the support surface P20 by a distance of ≥0.4mm to avoid the solid glue 32 deforming and protruding into the glue containing groove C1 and affecting the filling range of the liquid glue 31.

[0173] In summary, the adhesive component M10 of the first body 1a of the foldable device 100a in the embodiment of the present application, when the glass cover plate 20a needs to be assembled to the middle frame 10, firstly, the solid glue 32 is applied to the support surface P20 and the liquid glue 31 is injected into the glue tank C1, and then the glass cover plate 20a is pressed to the middle frame 10. In this way, the glass cover plate 20a can be quickly bonded to the support surface P20 of the middle frame 10 through the solid glue 32, and the problem of the glass cover plate 20a slipping relative to the middle frame 10 due to the different directions of the first support surface P21 and the second support surface P22 can be avoided, and the installation position of the glass cover plate 20a on the middle frame 10 is ensured to be accurate; after the liquid glue 31 is cured, the glass cover plate 20a is bonded to the middle frame 10 through the cured liquid glue 31 at the same time, so that the glass cover plate 20a and the middle frame 10 are accurately and reliably bonded.

[0174] See also Fig.17 and Fig.18 In this embodiment, the middle frame 50 and the back cover 60 of the second body 1b of the foldable device 100a can also be bonded together using the above-mentioned bonding method to prevent the back cover 60 from sliding sideways during assembly.

[0175] In this embodiment, the second body 1b of the foldable device 100a includes a middle frame 50 and a back cover 60 (also shown in FIG. Figure 2 ), the back cover 60 covers the side surface of the middle frame 50 of the second body 1b that is away from the flexible screen 2.

[0176] Optionally, in the second body 1b, the back cover 60 can be used as a mounting member M2 and bonded to the middle frame 50 as the base member M1 through the bonding structure 30, thereby forming another bonding assembly M10. In the bonding assembly M10, the bonding structure 30 also includes a solid glue 32 and a liquid glue 31. In this way, when the back cover 60 is assembled to the middle frame 50, the back cover 60 can first be quickly and reliably bonded to the middle frame 50 by the solid glue 32 (such as back glue); after the liquid glue 31 is cured, the back cover 60 can be bonded to the middle frame 50 by the solid glue 32 and the cured liquid glue 31, ensuring bonding reliability and achieving a certain waterproof effect.

[0177] In this embodiment, the back of the back cover 60 is flat on one side close to the first body 1a and curved on the other side away from the first body 1a, so that the support surface P20 of the middle frame 50 of the second body 1b is flat on one side and curved on the other side, and the two are oriented in different directions. In this case, when the back cover 60 is assembled to the middle frame 50, since the solid glue 32 can quickly bond and position the back cover 60, even if there is the above-mentioned problem of different orientations, the back cover 60 is not prone to lateral slippage during assembly, ensuring accurate and reliable bonding.

[0178] Fig.19 and Fig. 20The electronic device 100 of another embodiment of the present application is shown, and the electronic device 100 is a straight panel device 100b, specifically a straight panel mobile phone. The straight panel mobile phone mentioned here refers to a mobile phone that does not have a foldable or rollable flexible display screen.

[0179] See also Fig.19 and Fig. 20 The bar device 100b in this embodiment includes a body 3 and a display screen 4. The body 3 is a non-foldable bar body, which includes components such as a middle frame 70, a battery, a main board, and a back cover 80. The display screen 4 is a non-foldable display screen 4, and the glass cover of the display screen 4 is fixedly connected to the front of the middle frame 70 through an adhesive structure 30. The back cover 80 is connected to the back of the middle frame 70. The battery, the main board, etc. are arranged inside the bar device 100b.

[0180] In this embodiment, the display screen 4 is a single-sided curved screen with one side (left side) being flat and the other side (right side) being curved along the first direction Y1 (i.e., the width direction of the straight-screen device). The straight-screen mobile phone is a single-sided curved screen mobile phone.

[0181] As the base member M1, the middle frame 70 of the straight-panel device 100b is provided with a glue-containing groove C1 and has a support portion 12, and the support surface P20 of the support portion 12 has a first support surface P21 and a second support surface P22, the first support surface P21 and the second support surface P22 are spaced apart along the first direction Y1, and the orientation of the first support surface P21 is different from the orientation of the second support surface P22. The orientation of the second support surface P22 is perpendicular to the plane area of ​​the display screen 4, and the orientation of the first support surface P21 is tilted outward relative to the display screen 4, and forms an acute angle with the second support surface P22.

[0182] The bonding structure 30 includes a liquid adhesive 31 and a solid adhesive 32 ; the liquid adhesive 31 is contained in the adhesive containing groove C1 , and the solid adhesive 32 is disposed on the supporting surface P20 .

[0183] As the mounting member M2, the glass cover plate 4a of the display screen 4 is bonded to the glue groove C1 of the middle frame 70 by liquid glue 31, and the glass cover plate 4a is bonded to the first support surface P21 and the second support surface P22 by solid glue 32. Specifically, the curved side of the glass cover plate 4a of the display screen 4 along the first direction Y1 is connected to the first support surface P21 by the solid glue 32, and the flat side of the glass cover plate 4a of the display screen 4 along the first direction Y1 is connected to the second support surface P22 by the solid glue 32.

[0184] The solid glue 32 may include multiple disconnected segments. Figure 1-Figure 16 The implementation methods in the illustrated embodiments are not described in detail here.

[0185] In the bar device 100b of this embodiment, the back cover 80 as the mounting member M2 and the middle frame 70 as the base member M1 are bonded by the bonding structure 30 to form another bonding assembly M10, which can ensure that the back cover 80 is accurately and reliably bonded to the middle frame 70.

[0186] Comprehensive Figure 1-Figure 20 As can be seen from the corresponding description, in the embodiment of the present application, the mounting member M2 and the base member M1 are bonded by the bonding structure 30, and the base member M1 is provided with a glue containing groove C1; the base member M1 has a supporting portion 12, and the supporting portion 12 has a first supporting surface P21 and a second supporting surface P22, the first supporting surface P21 and the second supporting surface P22 are spaced apart along the first direction Y1, and the orientation of the first supporting surface P21 and the orientation of the second supporting surface P22 are different; the bonding structure 30 includes a liquid glue 31 and a solid glue 32; the liquid Glue 31 is contained in the glue groove C1, and solid glue 32 is arranged on the supporting surface P20; the mounting component M2 is bonded to the glue groove C1 of the base component M1 through the liquid glue 31, and the mounting component M2 is bonded to the first supporting surface P21 and the second supporting surface P22 through the solid glue 32. When the mounting component M2 needs to be assembled to the base component M1, the solid glue 32 is first applied to the first supporting surface P21 and the second supporting surface P22, and the liquid glue 31 is injected into the glue groove C1, and then the mounting component M2 is pressed to the base component M1. In this way, the mounting component M2 can be quickly bonded to the first supporting surface P21 and the second supporting surface P22 of the base component M1 through the solid glue 32, which can avoid the problem of the mounting component M2 slipping relative to the base component M1 due to the different directions of the first supporting surface P21 and the second supporting surface P22, thereby ensuring that the mounting component M2 is accurately installed on the base component M1; after the liquid glue 31 is cured, the mounting component M2 is also bonded to the base component M1 through the cured liquid glue 31, thereby forming an accurately positioned and reliable bond between the mounting component M2 and the base component M1.

[0187] In the embodiment of the present application, the base component M1 can be the aforementioned middle frame 10, 50, 70, or the middle frame or shell of a tablet computer, smart watch or other electronic device; the mounting component M2 can be the aforementioned glass cover 20a, 4a or back cover 60, or it can be a camera decoration, a speaker or other structural parts or electronic components, which are not limited here.

[0188] The above implementation modes are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the above preferred implementation modes, a person skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A bonding assembly for electronic equipment, characterized in that: The bonding assembly comprises: A base member, wherein the base member is provided with a glue containing groove; the base member has a supporting portion, wherein the supporting portion has a first supporting surface and a second supporting surface, wherein the first supporting surface and the second supporting surface are spaced apart along a first direction, and the orientation of the first supporting surface is different from the orientation of the second supporting surface; The bonding structure comprises liquid glue and solid glue; the liquid glue is contained in the glue containing groove; The mounting member is bonded to the adhesive groove of the base member by the liquid adhesive, and the mounting member is bonded to the first supporting surface and the second supporting surface by the solid adhesive.

2. The adhesive assembly according to claim 1, characterized in that: The mounting member is located on one side of the base member along the second direction; The second supporting surface is oriented parallel to the second direction; The orientation of the first supporting surface forms an acute angle with the orientation of the second supporting surface.

3. The adhesive assembly according to claim 2, characterized in that: The mounting member is in a plate shape, and includes a plane area and a top curved area, wherein the top curved area is connected to an end of the plane area along the first direction close to the first supporting surface, and an end of the plane area along the first direction away from the top curved area includes a bottom plane area; The first supporting surface is parallel to the top curved surface area, and the second supporting surface is parallel to the bottom flat surface area.

4. The adhesive assembly according to claim 1, characterized in that: The solid glue is annular, and is divided into multiple sections in the circumferential direction.

5. The adhesive assembly according to any one of claims 1 to 4, characterized in that: The solid glue includes a first glue strip and a second glue strip, the first glue strip is bonded between the first supporting surface and the mounting member, and the second glue strip is bonded between the second supporting surface and the mounting member.

6. The adhesive assembly according to claim 5, characterized in that: The adhesive containing groove is an annular groove; the supporting portion is annular, and the supporting portion is located inside the adhesive containing groove; The support portion is further provided with a third support surface and a fourth support surface, the third support surface and the fourth support surface are spaced apart along a third direction, and the first support surface, the third support surface, the second support surface and the fourth support surface are connected end to end to form an annular support surface, and the support surface is used to install the mounting member; wherein the third direction is perpendicular to the first direction; The solid glue also includes a third glue strip and a fourth glue strip. The third glue strip is bonded between the third supporting surface and the mounting member, and the fourth glue strip is bonded between the fourth supporting surface and the mounting member.

7. The adhesive assembly according to claim 6, characterized in that: The first supporting surface, the third supporting surface and the fourth supporting surface are respectively inclined outwards; The first supporting surface and the third supporting surface are transitionally connected via a first transition surface, and the first supporting surface and the fourth supporting surface are transitionally connected via a second transition surface; both the first transition surface and the second transition surface are bidirectional curved surfaces; The disconnection point of the solid glue at least includes a point corresponding to the first transition surface and a point corresponding to the second transition surface.

8. The adhesive assembly according to claim 7, characterized in that: The second supporting surface is perpendicularly oriented toward the mounting member, and the third supporting surface and the fourth supporting surface are oriented in an inclined manner toward the outside. The second support surface and the third support surface are transitionally connected via a third transition surface, and the second support surface and the fourth support surface are transitionally connected via a fourth transition surface; the third transition surface and the fourth transition surface are both unidirectional curved surfaces; The solid glue is in a continuous state at the third transition surface and the fourth transition surface.

9. The adhesive assembly according to claim 1, characterized in that: The solid adhesive is a double-sided adhesive; The width of the solid glue is ≥0.6 mm, and / or the thickness of the solid glue is 0.1 mm to 0.25 mm.

10. The adhesive assembly according to claim 1, characterized in that: The base member also includes an annular outer peripheral wall, the support portion is annular and connected to the inner side of the outer peripheral wall; the glue containing groove is formed at the intersection of the outer peripheral wall and the support portion, and the support portion is located on the inner side of the glue containing groove.

11. The adhesive assembly according to claim 1, characterized in that: The base component is a middle frame, and the mounting component is a display screen, a battery cover, or a camera decorative component.

12. An electronic device, characterized in that: include: The bonding assembly according to any one of claims 1 to 11; Wherein, the base component is a middle frame of the electronic device, and the mounting component is a back cover of the electronic device or a glass cover plate of a display screen.

13. The electronic device according to claim 12, characterized in that: The electronic device is a bar device, and the mounting piece is a glass cover plate of a display screen of the bar device; The width direction of the display screen is parallel to the first direction; The display screen is a single-sided curved screen with one side being curved and the other side being flat along the width direction; the curved side of the glass cover plate along the width direction is connected to the first supporting surface, and the flat side of the glass cover plate along the width direction is connected to the second supporting surface.

14. A foldable device, characterized in that: include: A housing assembly, comprising a first body, a second body and a shaft assembly; the first body is rotatably connected to the second body through the shaft assembly; the first body and the second body are connected along a height direction of the foldable device; A flexible screen connected to the front of the housing assembly and covering the first body, the shaft assembly and the second body; Wherein, the first body comprises the adhesive assembly according to any one of claims 1 to 11, the base member of the adhesive assembly is a middle frame of the first body, and the mounting member of the adhesive assembly is a glass cover plate of the secondary display screen of the first body; The side of the secondary display screen away from the second body is a curved surface, and the side close to the second body is a flat surface. The curved surface portion of the glass cover plate of the secondary display screen away from the second body is connected to the first supporting surface, and the flat surface portion of the glass cover plate close to the second body is connected to the second supporting surface.

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