CN215529065U

CN215529065U - Shell assembly and mobile terminal

Info

Publication number: CN215529065U
Application number: CN202121189759.0U
Authority: CN
Inventors: 钱再军
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2022-01-14
Anticipated expiration: 2031-05-28
Also published as: WO2022247291A1

Abstract

The application relates to a shell assembly and a mobile terminal. The shell assembly comprises a shell, a cover plate and an adhesive. The shell is provided with a bearing surface and a limiting surface, and the limiting surface is connected to one side of the bearing surface at a preset angle. The cover plate comprises a top surface, a bottom surface and a side surface, wherein the top surface and the bottom surface are oppositely arranged, and the side surface is connected between the top surface and the bottom surface in a surrounding mode. The cover plate is arranged on the shell, and the bottom surface of the cover plate and the bearing surface are arranged at intervals to form a first gap. The side face and the limiting face of the cover plate are arranged at intervals to form a second gap, and the first gap is communicated with the second gap. The adhesive is filled in the first gap and the second gap and is exposed out of the second gap. Obviously, the visual effect of narrow frame can be realized to the casing subassembly of this application, and can effectively increase the bonding length between apron and the casing, still can make its inhalant canal prolong by a wide margin, and then effectively improve its waterproof performance.

Description

Shell assembly and mobile terminal

Technical Field

The application relates to the technical field of communication, in particular to a shell assembly and a mobile terminal.

Background

With the vigorous development of communication technology, the updating and upgrading of terminal products are accelerated, large-screen intelligent terminal equipment is more and more favored by users, and the user experience becomes the impetus of various manufacturers. The high screen ratio is the core competitiveness continuously pursued by various manufacturers, and is also an effective means for showing stronger research and development capability to competitors. For example, the industry is pursuing an ultra-narrow bezel to increase the screen ratio, thereby increasing the competitiveness of the product and the technical capability of the company. However, the realization of the ultra-narrow frame is usually based on the premise of sacrificing the reliability or appearance of the product, which easily results in the reliability of the narrow edge bonding, and the problems of water and liquid resistance are more prominent.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a shell assembly and a mobile terminal, which can effectively improve the bonding reliability and the waterproof capability while realizing a narrow frame.

In a first aspect, an embodiment of the present application provides a casing assembly, including a casing, where the casing is provided with a bearing surface and a limiting surface, and the limiting surface is connected to one side of the bearing surface at a preset angle; the cover plate comprises a top surface, a bottom surface and a side surface, wherein the top surface and the bottom surface are oppositely arranged, the side surface is connected between the top surface and the bottom surface in a surrounding mode, the cover plate is installed on the shell, the bottom surface of the cover plate and the bearing surface are arranged at intervals to form a first gap, the side surface of the cover plate and the limiting surface are arranged at intervals to form a second gap, and the first gap is communicated with the second gap; and the viscose is filled in the first gap and the second gap and is exposed out of the second gap. Obviously, the glue is exposed from the second gap by using a dispensing method (for example, glue), so as to fill the second gap with the glue. So, can be when realizing the visual effect of narrow frame for the length of colloid bonding face is showing the extension, can effectively increase the bonding length between apron and the casing, makes housing assembly have sufficient reliability in cylinder test, drop test, and then effectively improves the reliability and the fastness of bonding. Moreover, under the condition that enough adhesive force exists between the cover plate and the shell, the shell assembly can be provided with a narrower bearing surface, namely, the adhered frame can be further greatly narrowed, and further the narrow frame visual effect of the shell assembly is further strengthened. In addition, when the visual effect of the narrow frame is realized, the water inlet path of the shell assembly can be greatly prolonged, and the waterproof performance of the shell assembly is effectively improved.

In a possible design, the casing includes a first casing and a second casing, the second casing includes a first surface and a second surface, the first surface and the second surface are disposed oppositely, the second casing is disposed on the first casing through the second surface, the bearing surface and the limiting surface are disposed on the first surface, and the limiting surface and the bearing surface form an L-shaped structure. Obviously, in the design, the limiting surface and the bearing surface form an L-shaped structure, so that the length of the adhesive bonding surface of the adhesive is obviously lengthened, the water inlet path of the adhesive bonding surface is greatly prolonged, and the waterproof performance of the shell assembly is effectively improved.

In a possible design, the first surface is further provided with an adhesive overflow groove, the adhesive overflow groove is formed by sinking the position of the bearing surface close to the limiting surface to the direction far away from the bottom surface of the cover plate, and the adhesive overflow groove is arranged between the first gap and the second gap and is mutually communicated with the first gap and the second gap. Obviously, in the design, through the design of the glue overflow groove, the length of the glue bonding surface can be obviously lengthened, the water inlet path is greatly prolonged, and the waterproof performance of the shell assembly is effectively improved.

In a possible design, the height of the position of the bearing surface where the glue overflow groove is not arranged is higher than the height of the bottom wall of the glue overflow groove, so that a boss is formed on the bearing surface, and the height of the boss is smaller than the height of the second shell at the top of the second gap. Obviously, in this design, through setting up boss and excessive gluey groove, can avoid the colloid to spill over to between second casing and the apron, avoid causing by excessive gluey inside package assembly of arousing mobile terminal bad for mobile terminal has better performance and user experience.

In one possible design, the first housing is provided with a mounting slot into which the second surface of the second housing is bonded by a back glue. Obviously, in this design, the second housing is attached to the first housing by adhesive backing into the mounting slot of the first housing. Of course, the second surface of the first housing may be connected to the first housing by other methods, which are not limited in particular.

In one possible embodiment, the first housing is made of a metal material and the second housing is made of a plastic material. Obviously, the housing assembly has a wide application range, for example, the housing assembly can be applied to a first housing made of a metal material and a second housing made of a plastic material, and the two housings can be molded through simulated injection molding, so that the complexity of the process is greatly simplified, and the product cost can be greatly reduced.

In a possible design, the housing includes a first housing, the bearing surface and the limiting surface are both disposed on the first housing, and the limiting surface and the bearing surface form an L-shaped structure. Obviously, in the design, the limiting surface and the bearing surface form an L-shaped structure, so that the length of the adhesive bonding surface of the adhesive is obviously lengthened, the water inlet path of the adhesive bonding surface is greatly prolonged, and the waterproof performance of the shell assembly is effectively improved.

In one possible design, the thickness of the glue filled in the first gap is a first thickness; or the thickness of the viscose filled in the first gap is a second thickness; wherein the second thickness is greater than the first thickness. Obviously, in the design, the shell assembly can be used for different types of products, the visual effect of the narrow frame can be realized, and the shell assembly has better waterproof performance.

In a possible design, the casing includes a first casing and a second casing, the second casing includes a first surface and a second surface, the first surface and the second surface are disposed oppositely, the second casing is disposed on the first casing through the second surface, the bearing surface is disposed on the first casing, the limiting surface is disposed on the first surface, the height of the bearing surface is less than that of the second surface, and the bearing surface and the limiting surface form an L-shaped structure. Obviously, in the design, the limiting surface and the bearing surface form an L-shaped structure, so that the length of the adhesive bonding surface of the adhesive is obviously lengthened, the water inlet path of the adhesive bonding surface is greatly prolonged, and the waterproof performance of the shell assembly is effectively improved.

In one possible design, the cover plate is a glass cover plate, and the bottom surface of the cover plate is connected to the display module. Obviously, the shell assembly of the design can realize extremely narrow frame, and the bonding reliability is high, and has exquisite outward appearance.

In one possible design, the display module is a 2.5D screen or a 3D screen. Obviously, in the design, the shell assembly can be used for different types of products, the visual effect of the narrow frame can be realized, and the shell assembly has better waterproof performance.

In one possible design, the cover plate is a battery cover. Obviously, in the design, the shell assembly can be used for different types of products, the visual effect of the narrow frame can be realized, and the shell assembly has better waterproof performance.

In a second aspect, an embodiment of the present application provides a mobile terminal, which includes a display module and the housing assembly of any one of the possible designs of the first aspect and the above-mentioned first aspect, where the display module is mounted on the housing and attached to the bottom surface.

In one possible design, the mobile terminal further includes a battery cover constituting the cover plate.

In one possible design, the display module is a 2.5D screen or a 3D screen.

In addition, the technical effects brought by the second aspect can be referred to the description related to the housing assembly related to the first aspect and the possible design, and are not described herein again.

Drawings

FIGS. 1a, 1b, and 1c are schematic views of a conventional 2.5D screen bonding scheme;

FIGS. 2a, 2b, and 2c are schematic views of another conventional 2.5D screen bonding scheme;

fig. 3a, 3b, 3c and 3D are schematic views of two conventional 3D screen bonding schemes;

FIG. 4 is a schematic view of a housing assembly provided in accordance with a first embodiment of the present application;

FIG. 5 is an assembled schematic view of the housing assembly of FIG. 4;

FIG. 6 is a schematic view showing the bonding length of the cover plate to the second housing in the housing assembly of FIG. 4;

FIG. 7 is a schematic view of the water-tight path of the housing assembly of FIG. 4;

FIG. 8 is a schematic view of a housing assembly provided in accordance with a second embodiment of the present application;

FIG. 9 is an assembled schematic view of the housing assembly of FIG. 8;

FIGS. 10a and 10b are schematic views of a housing assembly according to a third embodiment of the present application;

FIG. 11 is an assembled view of the housing assembly of FIG. 10 b;

fig. 12a and 12b are schematic views of a housing assembly according to a fourth embodiment of the present application;

FIG. 13 is an assembled view of the housing assembly of FIG. 12 b;

fig. 14a and 14b are schematic views of a housing assembly according to a fifth embodiment of the present application;

fig. 15 is an assembled view of the housing assembly of fig. 14 b.

Description of the main elements

The following detailed description will further illustrate the present application in conjunction with the above-described figures.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

The terminology used in the following examples is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the specification of the present application and the appended claims, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, such as "one or more", unless the context clearly indicates otherwise. It should also be understood that in the following embodiments of the present application, "at least one", "one or more" means one, two or more. The term "and/or" is used to describe an association relationship that associates objects, meaning that three relationships may exist; for example, a and/or B, may represent: a alone, both A and B, and B alone, where A, B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

Reference throughout this specification to "one embodiment" or "some embodiments," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," or the like, in various places throughout this specification are not necessarily all referring to the same embodiment, but rather "one or more but not all embodiments" unless specifically stated otherwise. The terms "comprising," "including," "having," and variations thereof mean "including, but not limited to," unless expressly specified otherwise.

For example, please refer to fig. 1a to 1c and fig. 2a to 2c together, which are two conventional 2.5D screen bonding schemes. Specifically, the solution is a conventional circumferential dispensing solution, i.e., the cap plate 300 and the first housing 400 are connected by the glue 200 (see fig. 1a), or the cap plate 300 and the second housing 500 are connected by the glue 200 (see fig. 2 a). Wherein, the second housing 500 is also connected with the first housing 400 through the adhesive. However, this solution may cause the effective bonding length or width of the housing (e.g. the first housing 400 or the second housing 500) and the cover 300 to be smaller (see the length L1 and the width W1 in fig. 1b and fig. 2b), which results in poor bonding reliability. Furthermore, this solution generates a plurality of water inlet paths, such as a water inlet path P1 (see fig. 1c and 2c) entering along the side of the housing (e.g. the first housing 400 or the second housing 500), a water inlet path P2 (see fig. 1c and 2c) entering along the side of the cover plate 300, and a water inlet path P3 (see fig. 1c and 2c) entering along the side of the colloid 200, thereby causing the water-proof and liquid-feeding problems to be more prominent.

Similarly, please refer to fig. 3a to 3D together, which illustrate two conventional 3D screen bonding schemes. Specifically, the solution generally employs a bottom-of-screen adhesive, a conventional tail-dispensing, bonding and filling solution (see fig. 3a and 3b) or a circumferential seam-filling and bottom-of-screen adhesive (see fig. 3c and 3d) between the cover plate 300 and the first housing 400. However, the two solutions may cause yellowing of the acid and alkali resistant test screen (see fig. 3a and 3b), i.e. the appearance must be sacrificed. Alternatively, the gel width may be relatively long (see fig. 3c and fig. 3d, which show 0.9mm), i.e. the product may have a problem of relatively wide black edge in view.

Therefore, the embodiment of the application provides a shell assembly, which can effectively improve the bonding reliability and has better waterproof capability. Specifically, referring to fig. 4, a housing assembly 100 is provided according to a first embodiment of the present application. The housing assembly 100 includes a cover plate 10, a housing 30 and an adhesive 50.

In the present embodiment, the cover plate 10 is a protection panel of the display module 600. The cover plate 10 may be a transparent hard plate member to protect internal parts of the mobile terminal (e.g., the display module 600) and to achieve a good light transmission effect. In the embodiment, the cover plate 10 is a glass cover plate, and is suitable for the display module 600 of a 2.5D screen. The cover plate 10 includes a top surface 11, a bottom surface 12, and side surfaces 13. Wherein the top surface 11 is arranged opposite to the bottom surface 12. The side surfaces 13 connect the top surface 11 and the bottom surface 12 in a surrounding manner. One side of the bottom surface 12 is provided with a display module 600.

It is understood that, in the present embodiment, the housing 30 includes a first housing 31 and a second housing 32. The first housing 31 may be a middle frame of the mobile terminal, which is made of a metal material. The second casing 32 may be a frame of the mobile terminal, which may be made of plastic. The second housing 32 is disposed on the first housing 31 and can be formed by in-mold injection molding with the first housing 31.

The first housing 31 includes a mounting groove 310. The second housing 32 includes at least a first surface 321 and a second surface 322. The first surface 321 is disposed opposite to the second surface 322. The second surface 322 is connected to the first housing 31 so that the second housing 32 is mounted to the first housing 31. For example, the second surface 322 may be adhered into the mounting groove 310 of the first housing 31 by the back adhesive 60 to be connected to the first housing 31. Of course, the second surface 322 of the first shell 31 can be connected to the first shell 31 by other methods, which are not limited in particular. The first surface 321 is provided with a bearing surface 323 and a limiting surface 324. The supporting surface 323 extends substantially parallel to the cover plate 10 and is spaced apart from the bottom surface 12 of the cover plate 10, thereby forming a first gap 325 therebetween.

In one embodiment, the limiting surface 324 is vertically connected or substantially vertically connected to one end of the supporting surface 323 and is spaced apart from the side surface 13 of the cover plate 10, so as to form a corresponding second gap 326 therebetween. The second slit 326 and the first slit 325 communicate with each other. In one embodiment, the first slit 325 and the second slit 326 form a substantially L-shaped structure.

It is understood that, in the present embodiment, the first surface 321 of the second casing 32 is further provided with an adhesive overflow groove 327. The glue overflow channel 327 is substantially rectangular. The glue overflow groove 327 is formed by recessing the position of the bearing surface 323 adjacent to the limiting surface 324 in a direction away from the bottom surface 12 of the cover plate 10. The glue overflow groove 327 is disposed between the first gap 325 and the second gap 326 and is connected to each other. In addition, the height of the position of the bearing surface 323 not provided with the glue overflow groove 327 is higher than the height of the bottom wall of the glue overflow groove 327, so that a boss 328 is formed on the bearing surface 323. The boss 328 is used to contact the bottom 12 of the cover plate 10 via the adhesive 50 to prevent the adhesive 50 from overflowing in a direction away from the limiting surface 324. It will be appreciated that the height of the boss 328 is less than the height of the second housing 32 at the top location where the second slot 326 is provided.

It will be appreciated that the adhesive 50 includes a first portion 51, a connecting portion 52 and a second portion 53. The first portion 51 is formed in a first gap 325 between the bearing surface 323 on the boss 328 and the bottom surface 12. The bearing surface 323 of the second housing 32 is adhered to the bottom surface 12 of the cap plate 10 by the first portion 51. The connection portion 52 is disposed in the glue overflow groove 327, so that another portion of the second housing 32 is adhered to the bottom surface 12 of the cover plate 10 through the connection portion 52. The second portion 53 is disposed in the second gap 326 between the stopper surface 324 and the side surface 13, so that the stopper surface 324 of the second housing 32 is adhered to the side surface 13 of the cover plate 10 by the second portion 53.

Referring to fig. 5, when assembling the housing assembly 100, the glue 40 is dropped onto the supporting surface 323 corresponding to the protrusion 328 by manual work or a dispenser (see fig. 5 (a)). The cover plate 10 can then be placed on the second housing 32 by using a robot, such that the bottom surface 12 of the cover plate 10 abuts against the bosses 328, and the glue 40 on the bosses 328 is simultaneously pressed to form the first portion 51, such that the second housing 32 is adhered to the bottom surface 12 of the cover plate 10 by the first portion 51. Meanwhile, a part of the glue 40 flows to the overflow groove 327 to form the connection portion 52, gradually flows into and overflows from the second gap 326 between the limiting surface 324 of the second housing 32 and the side surface 13 of the cover plate 10 to form the second portion 53, and the limiting surface 324 of the second housing 32 and the side surface 13 of the cover plate 10 are bonded by the second portion 53 (see fig. 5 (b)). That is, in the present embodiment, the glue 40 is formed by pressing to form the glue 50 including the first portion 51, the connecting portion 52 and the second portion 53. Next, the glue 40 overflowing the second gap 326 between the limiting surface 324 of the second housing 32 and the side surface 13 of the cover plate 10 can be wiped off by a glue spreader (e.g., a six-axis glue spreader) to obtain the housing assembly 100 (see fig. 4 and 5 (c)). Optionally, finally, the housing assembly 100 may be subjected to pressure maintaining and standing by using a pressing device.

As shown in fig. 6, in the above structure, the glue (e.g., the glue 50) is dispensed to overflow the second gap 326 between the limiting surface 324 of the second housing 32 and the side surface 13 of the cover 10, so as to fill the second gap 326 with the glue, and erase the glue overflowing the outer surface of the housing assembly 100. As shown in fig. 2a to fig. 2c and fig. 5(c), compared with the solutions shown in fig. 2a to fig. 2c, the housing assembly 100 of the present embodiment can also achieve the narrow frame effect. It can be understood that, while the housing assembly 100 realizes a narrow bezel, the length of the adhesive bonding surface can be significantly increased by flowing the adhesive 50 into the adhesive overflow groove 327 and the second gap 326 and overflowing from the second gap 326, i.e. increasing the longitudinal filling height d thereof, without changing the distance a from the transverse display module 600 to the boss 328, the width b of the transverse boss 328, and the width c of the gap between the transverse cover plate 10 and the second housing 32 (i.e. the second gap 326), i.e. increasing the longitudinal filling height d thereof (see fig. 6, the bonding length with the cover plate 10 is L2, and the bonding length with the second housing 32 is L3), so that the bonding length between the cover plate 10 and the second housing 32 can be effectively increased, and the housing assembly 100 has sufficient reliability in the roll test and the drop test, and further, the bonding reliability and firmness can be effectively improved.

Moreover, under the condition that the sufficient adhesion force is provided between the protective cover 10 and the second housing 32, the housing assembly 100 may be provided with a narrower bearing surface 323, that is, the adhered frame (i.e., the second housing 32) may be further narrowed, thereby further improving the visual effect of the narrow frame of the housing assembly 100.

In addition, referring to fig. 7, by disposing the adhesive 50, and making the adhesive 50 fill the first gap 325, the second gap 326 and the glue overflow groove 327 between the second housing 32 and the cover plate 10, the water inlet paths (as shown in the figure, the two water inlet paths are P4 and P5, respectively) can be greatly extended while the effect of the narrow frame is achieved, so as to effectively improve the waterproof performance of the housing assembly 100.

It is understood that, in the process, the glue (e.g., the first portion 51) on the boss 328 and the glue (e.g., the connecting portion 52) in the glue overflow groove 327 adhere and fix the bottom surface 12 of the cover plate 10 and the first surface 321 of the second housing 32. During the process of pressing the glue (e.g., the first portion 51) on the protrusion 328, the protrusion 328 and the cover plate 10 can effectively prevent the glue from overflowing in a direction away from the limiting surface 324, and the glue enters the glue overflow groove 327. Therefore, the glue can be prevented from overflowing to the position between the second shell 32 and the cover plate 10, and the problem of poor assembly structure inside the mobile terminal caused by glue overflow is avoided, so that the mobile terminal has better performance and user experience.

Please refer to fig. 8, which is a housing assembly 100a according to a second embodiment of the present application. The housing assembly 100a is similar to the housing assembly 100 of the first embodiment, i.e. includes a cover plate 10, a housing 30a and an adhesive 50 a. The shape, structure, material and other parameters of the cover plate 10 in the housing assembly 100a are the same as or similar to those of the cover plate 10 in the housing assembly 100, and are not described herein again.

It is understood that, in the present embodiment, the housing assembly 100a is different from the housing assembly 100 in that the housing 30a in the housing assembly 100a includes only the first housing 31a and does not include the second housing 32, i.e., the second housing 32 is omitted.

In this embodiment, the first housing 31a is directly connected to the cover plate 10 by the adhesive 50 a. Specifically, the first housing 31a includes a bearing surface 311 and a limiting surface 312. The bearing surface 311 is substantially a horizontal surface and is substantially parallel to and spaced apart from the bottom surface 12 of the cover plate 10. The limiting surface 312 is a substantially vertical surface, and is perpendicular or substantially perpendicular to the supporting surface 311. Of course, in the embodiment of the present application, the limiting surface 312 is not limited to be perpendicular or substantially perpendicular to the bearing surface 311, and may also be in other connection relationships, which are not specifically limited herein. For example, the limiting surface 312 may also be an inclined surface having an inclined angle, which is connected with the bearing surface 311 at a certain angle or arc.

It is understood that in the second embodiment, since the housing 30a is not provided with the second housing 32 in the housing assembly 100a, the structure of the adhesive 50a is different from that of the adhesive 50 in the first embodiment. For example, in the present embodiment, the adhesive 50a is substantially L-shaped, and includes a first portion 51a disposed between the carrying surface 311 and the bottom surface 12 and a second portion 53a disposed between the limiting surface 312 and the side surface 13, that is, the adhesive 50a does not include the connecting portion 52 as shown in the first embodiment.

It can be understood that, referring to fig. 4 and 8, in the second embodiment, the thickness of the first portion 51a (i.e., the adhesive 50a filled in the first gap 325) is equivalent to the thickness of the first portion 51 (i.e., the adhesive 50 filled in the first gap 325) in the first embodiment. The length or height of the second portion 53a (i.e., the adhesive 50a filled in the second gap 326) is comparable to the length or height of the second portion 53 (i.e., the adhesive 50 filled in the second gap 326) in the first embodiment.

It should be understood that, referring to fig. 9 together, similar to the first embodiment, when assembling the housing assembly 100a, the glue 40 may be firstly dropped onto the supporting surface 311 by a person or a dispenser (see fig. 9(a)), and then the cover plate 10 may be placed on the first housing 31a by a robot, so that the bottom surface 12 of the cover plate 10 is supported by the glue on the supporting surface 311, and the glue 40 on the supporting surface 311 is pressed at the same time, so as to fill the first gap 313 between the supporting surface 311 of the first housing 31 and the bottom surface 12 of the cover plate 10, so as to form the first portion 51 a. Meanwhile, a part of the colloid 40 gradually overflows from the second gap 314 between the stopper surface 312 of the first housing 31a and the side surface 13 of the cap plate 10 to form a second portion 53a, and the stopper surface 312 of the first housing 31a and the side surface 13 of the cap plate 10 are bonded by the second portion 53a (see fig. 9 (b)). Next, the glue overflowing between the position-limiting surface 312 of the first housing 31a and the side surface 13 of the cover plate 10 may be wiped off by a glue spreader (e.g., a six-axis glue spreader) to obtain the housing assembly 100a (see fig. 8 and 9 (c)). Optionally, finally, the housing assembly 100a may be subjected to pressure maintaining and standing by using a pressing device.

It is understood that in the present embodiment, the principle of erasing the overflowed glue by the glue wiper and performing the pressure maintaining and standing on the housing assembly 100a is similar to that of the first embodiment, and will not be described herein again.

Obviously, as in the first embodiment, in the above structure, the glue (for example, the glue 50a) is dispensed to overflow the second gap 314 between the limiting surface 312 of the first housing 31a and the side surface 13 of the cover plate 10, so as to fill the second gap 314 with the glue, and erase the glue overflowing the appearance surface of the housing assembly 100 a. As shown in fig. 1a to fig. 1c and fig. 8, compared with the solution shown in fig. 1a to fig. 1c, the housing assembly 100a of the present embodiment can also achieve a narrow frame effect. It can be understood that, while the housing assembly 100a realizes a narrow bezel, the adhesive 50a flows into the second slit 314 and overflows from the second slit 314 without changing the distance a1 from the transverse display module 600 to the supporting surface 311, the width b 1 of the transverse supporting surface 311, and the width c 1 of the gap (i.e., the second slit 314) between the transverse cover plate 10 and the first housing 31a, i.e., increasing the longitudinal filling height d1, so that the length of the adhesive bonding surface can be significantly increased, i.e., the bonding length between the cover plate 10 and the first housing 31a can be effectively increased, and the housing assembly 100a has sufficient reliability in the roll test and the drop test, thereby effectively improving the reliability and the firmness of the bonding. Moreover, under the condition that the protective cover 10 and the first shell 31a have sufficient adhesive force therebetween, the shell assembly 100a may have a narrower bearing surface 311, that is, the adhered frame (i.e., the first shell 31a) may be further narrowed, thereby further improving the visual effect of the narrow frame of the shell assembly 100 a.

In addition, by providing the adhesive 50a, and making the adhesive 50a fill the first gap 313 and the second gap 314 between the first housing 31a and the cover plate 10, the water inlet path can be greatly extended while the effect of the narrow frame is achieved, and the waterproof performance of the housing assembly 100a is effectively improved.

It can be understood that the glue 50a is disposed such that the glue 50a fills the first gap 313 and the second gap 314 between the first shell 31a and the cover plate 10. Thus, the cover plate 10 and the first shell 31a can be bonded in multiple directions, and the side surface 13 of the cover plate 10 and the limiting surface 312 of the first shell 31a are connected in a hard-soft-hard manner. Therefore, the adhesive 50a can play a role of buffering when the mobile terminal is collided or pressed, thereby reducing the risk of the cover plate 10 being chipped.

Please refer to fig. 10a and 10b together, which are a housing assembly 100b according to a third embodiment of the present application. The housing assembly 100b is similar to the housing assembly 100 of the first embodiment, i.e. includes a cover plate 10, a housing 30b and an adhesive 50 b. The housing 30b includes a first housing 31 and a second housing 32 b. The shape, structure, material and other parameters of the cover plate 10 in the housing assembly 100b are the same as or similar to those of the cover plate 10 in the housing assembly 100, and are not described herein again. Similarly, the shape, structure, material, etc. of the first housing 31 in the housing 30b are the same as or similar to those of the first housing 31 in the housing assembly 100, and will not be described herein again.

It is understood that, in the present embodiment, the housing assembly 100b is different from the housing assembly 100 in that the height of the first slit 325b in the housing assembly 100b in a predetermined direction (e.g., in a direction perpendicular to the cover plate 10) is different from the height of the first slit 325 in the first embodiment. In the present embodiment, the first slit 325b is disposed between the bearing surface 311 of the first casing 31 and the bottom surface 12, that is, the first slit 325b extends from the bearing surface 323 of the second casing 32b to the direction of the first casing 31, and further penetrates through the bearing surface 311 of the first casing 31. In the present embodiment, one side of the first slit 325b communicates with the display module 600, and the other side communicates with the second slit 326 between the limiting surface 324 of the second casing 32a and the side surface 13 of the cover plate 10.

It can be understood that, referring to fig. 4 and fig. 10b together, in the present embodiment, the height of the first gap 325b is greater than that of the first gap 325 in the first embodiment, so that the thickness of the first portion 51b filled in the first gap 325b is greater than that of the first portion 51 in the first embodiment.

It can be understood that, referring to fig. 11, when assembling the housing assembly 100b, the glue 40 is firstly dropped into the first gap 325b by a manual or a dispenser (see fig. 11(a)), and then the cover plate 10 is placed on the second housing 32b by a robot, so that the bottom surface 12 of the cover plate 10 is abutted against the bearing surface 311 of the first housing 31 through the glue in the first gap 325b, thereby forming the first portion 51 b. At the same time, the cap plate 10 presses the gel in the first gap 325 b. Thus, the glue in the first gap 325b adheres to the display module 600, and a part of the glue gradually flows into and overflows from the second gap 326 between the limiting surface 324 of the second casing 32b and the side surface 13 of the cover plate 10 to form a second part 53b, and adheres the limiting surface 324 of the second casing 32b and the side surface 13 of the cover plate 10 through the second part 53b (see fig. 11 (b)). Next, the glue overflowing between the limiting surface 324 of the second housing 32b and the side surface 13 of the cover plate 10 can be wiped off by a glue wiper (e.g., a six-axis glue wiper) to obtain the housing assembly 100b (see fig. 10b and fig. 11 (c)). Optionally, finally, the housing assembly 100b may be subjected to pressure maintaining and standing by using a pressing device.

It is understood that in the present embodiment, the principle of erasing the overflowed glue by the glue wiper and performing the pressure maintaining and standing on the housing assembly 100b is similar to that of the first embodiment, and will not be described herein again.

Obviously, in the third embodiment, the gap between the cover plate 10 and the second casing 32a is filled with the targeted glue (i.e., the second gap 326 is filled), i.e., the glue 50b is a specific glue, and the glue overflowing the outer surface of the casing assembly 100b is wiped off. As shown in fig. 2a to 2c and fig. 11(c), compared with the scheme shown in fig. 2a to 2c, the distance between the horizontal display module 600 and the second casing 32b in the casing assembly 100b is a2, and the casing assembly 100b is not provided with a boss, so that the width of the horizontal boss is reduced to zero (i.e., the glue in the first gap 325b is directly connected to the display module 600), and the narrow bezel effect can be effectively achieved. Meanwhile, the longitudinal filling height d2 of the adhesive 50a can be effectively increased by the housing assembly 100b in this embodiment, so that the length of the adhesive surface of the housing assembly 100b is significantly increased while the narrow frame effect is achieved, that is, the adhesive length between the cover plate 10 and the first housing 31 or the second housing 32b can be effectively increased, the housing assembly 100b has sufficient reliability in the roller test and the drop test, and the reliability and the firmness of adhesion are effectively improved.

Moreover, under the condition that the protective cover 10 and the second housing 32b have sufficient adhesion, the first slit 325b can be provided to provide a narrower bearing surface 323, i.e., the adhered frame (i.e., the second housing 32b) can be further narrowed, thereby further improving the visual effect of the narrow frame of the housing assembly 100 b.

In addition, through setting up first gap 325b, when first gap 325b packs corresponding viscose 50b in, can effectively increase its and the display module 600's under the apron 10 bonding area, and then realize effectively improving the reliability and the fastness of bonding.

It will be appreciated that in this embodiment, a targeted glue may be used to fill the gap between the cover plate 10 and the second housing 32b, i.e. the glue 50b is a specific glue. Optionally, the adhesive 50b is a hot melt adhesive, so that the bonding can be performed quickly and the bonding tightness can be realized. The overflowing glue is wiped off, the outer layer glue (namely the exposed glue) can be hardened by curing and other methods, and the inner layer glue forms soft glue by moisture curing and other methods. That is, the hardness of the outer layer glue is greater than that of the inner layer glue, so that the cover plate 10 and the display module 600 under the cover plate 10 are not damaged. In addition, in terms of adhesion reliability, the bottom of the cover plate 10 (i.e., the adhesion between the first housing 31 and the second housing 32b) is mainly back-glued, and the peripheral glue plays an auxiliary role. In the aspect of corrosion resistance, the adhesive mainly depends on the periphery glue, so that the bonding reliability is ensured, the liquid inlet corrosion is prevented, the step-free bonding can be realized, and the extremely-finished frame and the delicate appearance are realized.

Fig. 12a and 12b are combined to provide a housing assembly 100c according to a fourth embodiment of the present application. The housing assembly 100c is similar to the housing assembly 100b of the third embodiment, i.e. includes a cover plate 10, a housing 30c and an adhesive 50 c. The housing 30c includes a first housing 31 c. The shape, structure, material and other parameters of the cover plate 10 in the housing assembly 100c are the same as or similar to those of the cover plate 10 in the housing assembly 100b, and are not described herein again.

It is understood that in the present embodiment, the housing assembly 100c is different from the housing assembly 100b in that the housing 30c in the housing assembly 100c does not include the second housing 32b, i.e., the second housing 32b is omitted. The first housing 31c is directly connected to the cover plate 10 by the adhesive 50 c. Specifically, the first housing 31c is provided with a first slit 313 c. One side of the first gap 313c is connected to the display module 600, and the other side is communicated with the second gap 314 between the limiting surface 312 of the first housing 31c and the side surface 13 of the cover plate 10.

It can be understood that, in the present embodiment, the height of the first gap 313c is equivalent to the height of the first gap 325b in the third embodiment, that is, the thickness of the glue 50c filled in the first gap 313c is equivalent to the thickness of the glue 50b filled in the first gap 325 in the third embodiment.

Referring to fig. 13, when assembling the housing assembly 100c, the glue 40 is dropped into the first gap 313c manually or by a dispenser (see fig. 13(a)), and then the cover plate 10 is placed on the first housing 31c by a robot, so that the bottom surface 12 of the cover plate 10 is pressed against the bearing surface 311 of the first housing 31c by the glue in the first gap 313 c. At the same time, the cap plate 10 presses the gel in the first gap 313 c. Thus, the glue in the first gap 313c adheres to the display module 600, and a part of the glue gradually flows into the second gap 314 between the stopper surface 312 of the first housing 31c and the side surface 13 of the cover plate 10 and overflows, and adheres to the stopper surface 312 of the first housing 31c and the side surface 13 of the cover plate 10 (see fig. 13 (b)). Next, the glue overflowing between the limiting surface 312 of the first housing 31c and the side surface 13 of the cover plate 10 can be wiped off by a glue spreader (e.g., a six-axis glue spreader) to obtain a housing assembly 100c (see fig. 12b and 13 (c)). Optionally, finally, the housing assembly 100c may be subjected to pressure maintaining and standing by using a pressing device. It is understood that the beneficial effects of the housing assembly 100c in the fourth embodiment are similar to the housing assembly 100b in the third embodiment, and are not described again here.

Fig. 14a and 14b are combined to provide a housing assembly 100d according to a fifth embodiment of the present application. The housing assembly 100d includes a cover plate 10d, a housing 30d and an adhesive 50 d.

In the present embodiment, the cover plate 10d is a protection panel of the display module 600 a. The cover plate 10d may be a transparent hard plate to protect the internal parts (e.g., the display module 600a) of the mobile terminal and to achieve a good light transmission effect. In this embodiment, the cover plate 10D is a glass cover plate, and is suitable for the display module 600a of the 3D screen. The cover plate 10d includes a top surface 11d, a bottom surface 12d, and a side surface 13 d. Wherein the top surface 11d is disposed opposite to the bottom surface 12 d. The side surface 13d connects the top surface 11d and the bottom surface 12d in a surrounding manner. One side of the bottom surface 12d is provided with a display module 600 a. Of course, in the present embodiment, the type of the cover plate 10d is not limited. For example, the cover plate 10d may also be a battery cover.

The housing 30d includes a first housing 31 d. The first housing 31d may be a middle frame, which is made of a metal material. The first housing 31d at least includes a carrying surface 311d and a limiting surface 312 d. The limiting surface 312d may be a side surface of the first housing 31d, which is connected to the bearing surface 311d with a certain curvature. The bearing surface 311d may be a bottom surface of the first housing 31 d. When the cover plate 10d is disposed on the first casing 31d, the display module 600a disposed on the bottom surface 12d of the cover plate 10d can be adhered to the first casing 31d through the adhesive 60 d. One side of the back adhesive 60d is further spaced from the limiting surface 312d, and forms a first gap 313d together with the limiting surface 312d and the bearing surface 311 d. Meanwhile, when the cover plate 10d is disposed on the first housing 31d, the side surface 13d of the cover plate 10d and the side surface of the display module 600a are disposed at an interval with the limiting surface 312d, so as to form a second gap 314d together with the limiting surface 312 d. The second slit 314d communicates with the first slit 313d and is substantially L-shaped.

Further, referring to fig. 15, when assembling the housing assembly 100d, the glue 40 may be dropped into the first gap 313d manually or by a dispenser (see fig. 15(a)), and then the cover plate 10d may be placed on the first housing 31d by a robot, so that the display module 600a on the bottom surface 12d of the cover plate 10d is adhered to the first housing 31d by the adhesive 60 d. Meanwhile, the side surface 13d of the cover plate 10d and the side surface of the display module 600 press the glue 40 in the first gap 313d to fill the first gap 313d and form the first portion 51d, and then the bottom of the display module 600a and the first shell 31d are adhered by the first portion 51 d. Meanwhile, a part of the glue 40 flows into the second gap 314d to form a second portion 53d, and the side surface of the display module 600a and the peripheral wall (e.g., the limiting surface 312d) of the first housing 31d are bonded by the glue 40 through the second portion 53 d. Further, a part of the adhesive 40 gradually overflows from the second gap 314d between the stopper surface 312d of the first case 31d and the side surface 13d of the lid plate 10, and adheres the stopper surface 312d of the first case 31d and the side surface 13d of the lid plate 10d (see fig. 15 (b)). Next, the glue overflowing between the limiting surface 312d of the first housing 31d and the side surface 13d of the cover plate 10d can be wiped off by a glue wiper, so as to obtain the housing assembly 100d (see fig. 15 (c)). Optionally, the housing assembly 100d may be wiped with alcohol or directly pressed with a pressing device.

It is understood that in the present embodiment, the principle of erasing the overflowed glue by the glue wiper and performing the pressure-maintaining standing on the housing assembly 100d is similar to that of the previous embodiment, and will not be described herein again.

Obviously, in the fifth embodiment, the gap between the cover plate 10d and the first housing 31d is filled with a specific glue, i.e., the glue 50d is a specific glue, and the glue overflowing the appearance surface is wiped off. Thus, compared to the solutions shown in fig. 3a to fig. 3d, the housing assembly 100d can reduce the distance from the lateral display module 600d to the supporting surface 311d to zero (i.e., the sealant in the first gap 313d is directly connected to the display module 600d), and thus a narrow frame effect can be effectively achieved. Meanwhile, the longitudinal filling height of the adhesive 50d can be effectively increased for the shell assembly 100d in the embodiment, so that the length of the adhesive bonding surface of the shell assembly 100d is remarkably lengthened while the narrow frame effect is realized, the bonding length between the cover plate 10d and the first shell 31d can be effectively increased, the shell assembly 100d has sufficient reliability in the roller test and the drop test, and the bonding reliability and firmness are effectively improved.

Furthermore, when the protective cover 10d and the first shell 31d have sufficient adhesion, the first gap 313d and the second gap 314d are formed, so that the adhered frame (e.g., the first shell 31d) can be further narrowed, and the visual effect of the narrow frame of the shell assembly 100d is further improved.

In addition, the adhesive 50d can effectively increase the bonding area between the display module 600a and the cover plate 10d, thereby effectively improving the reliability and firmness of bonding.

Also, it is understood that in the fifth embodiment, a gap between the cover plate 10d and the first shell 31d may be filled with a targeted glue, i.e. the glue 50d is a specific glue. The overflowing glue is wiped off, the outer layer glue (namely the exposed glue) can be hardened by curing and other methods, and the inner layer glue forms soft glue by moisture curing and other methods. That is, the hardness of the outer layer glue is greater than that of the inner layer glue, so that the cover plate 10d and the display module 600a under the cover plate 10d are not damaged. Moreover, in terms of adhesion reliability, the bottom of the cover plate 10d is mainly coated with a back glue, and the peripheral glue plays an auxiliary role. In the aspect of corrosion resistance, the adhesive mainly depends on the periphery glue, so that the bonding reliability is ensured, the liquid inlet corrosion is prevented, the step-free bonding can be realized, and the extremely-finished frame and the delicate appearance are realized.

In summary, the housing assembly 100/100a/100b/100c/100d has at least the following advantages:

1. realize extremely narrow frame, realize the excessive cooperation of filling of glue extrusion promptly through the point is glued, can effectively realize the frame and narrow, further promote narrow frame competitiveness by a wide margin.

2. The bonding reliability is high, namely the problem of the contradiction between the bonding reliability and the ultra-narrow frame competitiveness in the conventional bonding scene is solved, and the high-reliability bonding under the ultra-narrow frame bonding is realized.

3. Waterproof ability promotes, and the waterproof route of glue of super narrow frame is short promptly, and waterproof feed liquor corrodes the problem risk height, and the scheme in this application embodiment can effectively solve waterproof and super narrow frame competitiveness contradiction problem, reduces the risk of feed liquor corruption by a wide margin.

4. The cost is greatly reduced, namely the scheme in the embodiment of the application greatly simplifies the complexity of the process, and compared with the scheme of bonding and external joint filling, the cost of the product can be greatly reduced.

5. The method has the advantages of being exquisite in appearance, solving the problem of contradiction between bonding reliability and ultra-narrow frame competitiveness in the conventional bonding scene, improving the product screen occupation ratio, achieving seamless bonding and improving the exquisite appearance competitiveness of the product.

It can be understood that the embodiment of the application also provides a mobile terminal. The mobile terminal comprises a shell assembly and a display module. The display module is arranged on the bottom surface of the cover plate in the shell assembly. It is understood that the housing assembly may be the housing assembly 100/100a/100b/100c/100d described above. The display module may be the display module 600/600a described above. The mobile terminal can be a mobile phone, a tablet computer, a notebook computer or a liquid crystal display and the like. The display module 600 is disposed on the bottom surface 12 of the cover plate 10 in the housing assembly 100/100a/100b/100c/100 d.

It can be understood that the mobile terminal can ensure that a narrower frame can be provided to achieve large screen display through the housing assembly, and has a better waterproof function to ensure the overall appearance effect, and specific beneficial effects thereof can be found in the housing assembly 100/100a/100b/100c/100d, which are not described herein again.

It should be understood that the embodiments of the present application may be arbitrarily combined, for example, may be used alone, or may be used in combination with each other to achieve different technical effects, which is not limited thereto.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A housing assembly, comprising:

the device comprises a shell, a bearing surface and a limiting surface, wherein the bearing surface and the limiting surface are arranged on the shell, and the limiting surface is connected to one side of the bearing surface at a preset angle;

the cover plate comprises a top surface, a bottom surface and a side surface, wherein the top surface and the bottom surface are oppositely arranged, the side surface is connected between the top surface and the bottom surface in a surrounding mode, the cover plate is installed on the shell, the bottom surface of the cover plate and the bearing surface are arranged at intervals to form a first gap, the side surface of the cover plate and the limiting surface are arranged at intervals to form a second gap, and the first gap is communicated with the second gap; and

and the viscose is filled in the first gap and the second gap and is exposed out of the second gap.

2. The housing assembly of claim 1, wherein the housing comprises a first housing and a second housing, the second housing comprises a first surface and a second surface, the first surface and the second surface are disposed opposite to each other, the second housing is disposed on the first housing through the second surface, the bearing surface and the limiting surface are disposed on the first surface, and the limiting surface and the bearing surface form an L-shaped structure.

3. The housing assembly of claim 2, wherein the first surface further comprises an overflow groove, the overflow groove is formed by recessing the position of the bearing surface adjacent to the limiting surface in a direction away from the bottom surface of the cover plate, and the overflow groove is disposed between the first gap and the second gap and is communicated with the first gap and the second gap.

4. The housing assembly of claim 3, wherein the height of the carrying surface without the glue overflow groove is higher than the height of the bottom wall of the glue overflow groove, so as to form a protrusion on the carrying surface, and the height of the protrusion is smaller than the height of the second housing at the top of the second gap.

5. The housing assembly of claim 2, wherein the first housing is provided with a mounting slot, the second surface of the second housing being bonded into the mounting slot by a backsize.

6. The housing assembly of claim 2, wherein the first housing is made of a metal material and the second housing is made of a plastic material.

7. The casing assembly of claim 1, wherein the casing comprises a first casing, the bearing surface and the limiting surface are disposed on the first casing, and the limiting surface and the bearing surface form an L-shaped structure.

8. The housing assembly of claim 7 wherein the thickness of the adhesive filled in the first gap is a first thickness; or

The thickness of the viscose filled in the first gap is a second thickness;

wherein the second thickness is greater than the first thickness.

9. The housing assembly of claim 1, wherein the housing comprises a first housing and a second housing, the second housing comprises a first surface and a second surface, the first surface and the second surface are disposed opposite to each other, the second housing is disposed on the first housing through the second surface, the bearing surface is disposed on the first housing, the limiting surface is disposed on the first surface, the bearing surface has a height smaller than that of the second surface, and the bearing surface and the limiting surface form an L-shaped structure.

10. The housing assembly of claim 1, wherein the cover plate is a glass cover plate, and a bottom surface of the cover plate is coupled to a display module.

11. The housing assembly of claim 10, wherein the display module is a 2.5D screen or a 3D screen.

12. The housing assembly of claim 1, wherein the cover plate is a battery cover.

13. A mobile terminal comprising a housing assembly according to any one of claims 1 to 10 and a display module mounted to the housing and attached to the bottom surface.

14. The mobile terminal of claim 13, further comprising a battery cover, the battery cover constituting the cover plate.

15. The mobile terminal of claim 13, wherein the display module is a 2.5D screen or a 3D screen.