CN108282569B - Rear cover assembly for mobile terminal and mobile terminal - Google Patents
Rear cover assembly for mobile terminal and mobile terminal Download PDFInfo
- Publication number
- CN108282569B CN108282569B CN201711429074.7A CN201711429074A CN108282569B CN 108282569 B CN108282569 B CN 108282569B CN 201711429074 A CN201711429074 A CN 201711429074A CN 108282569 B CN108282569 B CN 108282569B
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- Prior art keywords
- cover plate
- rear shell
- plastic cover
- plastic
- mobile terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
- H04M1/185—Improving the rigidity of the casing or resistance to shocks
Abstract
The invention relates to a rear cover assembly for a mobile terminal and the mobile terminal, wherein the rear cover assembly comprises a rear shell, a plastic cover plate is arranged on the outer side of the rear shell, an accommodating groove for accommodating the plastic cover plate is formed in one side of the rear shell, which faces the plastic cover plate, the plastic cover plate is arranged in the accommodating groove, and the edge of one side of the plastic cover plate, which faces the rear shell, is relatively and fixedly connected with the rear shell through dispensing. According to the rear cover assembly for the mobile terminal, the plastic plate is adopted to replace 3D curved glass, the cost is reduced while the effect of the 3D glass can be achieved, and the problem of a gap formed by the plastic plate and the rear cover in a matched mode can be solved to a certain extent through dispensing; under the condition that the thickness of the plastic plate is increased, the reliability of the structure can be ensured under the condition that the thickness of the whole machine is not changed through dispensing, and the whole machine is light and thin; and the problem that the periphery of the plastic plate of the whole machine is warped is solved, and the whole cost is low.
Description
Technical Field
The invention relates to the technical field of mobile terminals, in particular to a rear cover assembly for a mobile terminal and the mobile terminal.
Background
With the explosion of mobile terminal market, more and more mobile phones adopt 3D curved glass as a rear cover, however, for part of low-end machines, the adoption of 3D glass as a rear cover of a complete machine obviously faces a very large cost pressure, and therefore, a plate capable of replacing 3D curved glass as a rear cover is needed.
Disclosure of Invention
The invention aims to provide a rear cover assembly for a mobile terminal and the mobile terminal, and solves the problem that in the prior art, a plastic plate is used for replacing 3D curved glass, so that the rear cover assembly has more defects when being assembled to a rear shell.
The technical scheme adopted by the invention for solving the technical problem is as follows: the utility model provides a back cover subassembly for mobile terminal, includes the backshell the outside of backshell is provided with the plastics apron, the backshell orientation one side of plastics apron is formed with and is used for holding the holding tank of plastics apron, the plastics apron is installed in the holding tank, the plastics apron orientation the edge of one side of backshell with through the relative fixed connection of point gluing between the backshell.
Optionally, the dispensing position is located at an end corner of one side of the plastic cover plate facing the rear shell.
Optionally, foam adhesive is further disposed at a position, close to each dispensing position, of an edge of one side of the plastic cover plate, which faces the rear shell.
Optionally, the thicknesses of the dispensing colloid formed by dispensing and the foam cotton are respectively less than 0.3 mm.
Optionally, the edge of one side of the plastic cover plate facing the rear shell and located between the two foam rubbers are further provided with a buffer foam, and the buffer foam is adhered to the plastic cover plate.
Optionally, an excessive glue groove for receiving excessive glue is formed at the end corner of the accommodating groove located at the rear shell in a downward concave manner.
Optionally, a silk-screen layer is printed on one side of the plastic cover plate facing the rear shell.
Optionally, the surface of the plastic cover plate is lower than the end of the notch end of the accommodating groove of the rear shell; a gap is arranged between the end edge of the plastic cover plate and the groove wall of the containing groove of the rear shell, and the gap distance of one end, located outside, of the gap is smaller than the gap distance of one end, located inside, of the gap.
Optionally, the end of the notch end of the accommodating groove corresponding to the rear shell is arc-shaped; the end part of the notch end of the containing groove of the rear shell is in smooth transition with the end edge of the side end of the rear shell through a chamfer, and the chamfer is provided with a transition surface which deviates from the plastic cover plate and is smoothly connected with the surface of one side of the rear shell.
The invention also provides a mobile terminal which comprises the rear cover assembly.
The rear cover assembly for the mobile terminal and the mobile terminal have the following beneficial effects: according to the rear cover assembly for the mobile terminal, the plastic plate is adopted to replace 3D curved glass, the cost is reduced while the effect of the 3D glass can be achieved, and the problem of a gap formed by the plastic plate and the rear cover in a matched mode can be solved to a certain extent through dispensing; under the condition that the thickness of the plastic plate is increased, the reliability of the structure can be ensured under the condition that the thickness of the whole machine is not changed through dispensing, and the whole machine is light and thin; and the problem that the periphery of the plastic plate of the whole machine is warped is solved, and the whole cost is low.
Drawings
Fig. 1 is a schematic structural view of a rear cover assembly for a mobile terminal according to the present invention.
Detailed Description
The structure and specific implementation of the rear cover assembly for a mobile terminal and the mobile terminal of the present invention are further described with reference to the accompanying drawings and embodiments:
it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention relates to a mobile terminal including a rear cover assembly.
As shown in fig. 1, a rear cover assembly for a mobile terminal includes a rear case 1, and a plastic cover plate 2 is provided at an outer side of the rear case 1. Wherein, one side of backshell 1 towards plastic cover plate 2 is formed with the holding tank (not marking in the figure) that is used for holding plastic cover plate 2, and plastic cover plate 2 installs in the holding tank, through some relative fixed connection of point between the edge of one side of plastic cover plate 2 towards backshell 1 and backshell 1. The dispensing body 3 formed by dispensing is shown in the figure. Preferably, the glue dispensing position is located at the end corner of the side of the plastic cover plate 2 facing the rear shell 1, so that the glue dispensing can be prevented from entering the shell carelessly to damage an internal circuit; meanwhile, the problem that the periphery of the plastic cover plate 2 is warped can be solved. The plastic cover plate 2 may be made of PC or PMMA, or a composite and plastic cover plate made of PC and PMMA.
The plastic cover plate 2 is generally thicker than the 3D glass, so that the overall thickness is increased. The strong viscosity through some glue can still guarantee the steadiness of being connected between plastic cover plate 2 and backshell 1 when reducing the thickness of colloid, and then reach and guarantee that complete machine thickness is unchangeable.
The downward concave part of the containing groove at the end corner of the rear shell 1 is provided with an overflow glue groove 4 for receiving excessive glue, so that when glue dispensing operation is performed on the rear shell 1 conveniently, the risk of glue hiding caused by excessive glue amount and no place is avoided.
The edge of one side of the plastic cover plate 2 facing the rear shell 1 and the position close to each dispensing position are respectively provided with foam rubber 5. Through increasing bubble celloidin 5 at local position and pasting, can reduce the cost with gluing, also can prevent to use a large amount of some glue to lead to getting into the risk that has destruction internal circuit in the casing.
The thicknesses of the dispensing body 3 and the foam cotton 5 formed by dispensing are respectively less than 0.3mm, and preferably, the thicknesses of the dispensing body 3 and the foam cotton 5 formed by dispensing are respectively 0.2 mm. Through reducing some colloid 3 and 5 thickness of bubble celloidin in order to compensate the thickness that plastic cover plate 2 increases than 3D glass, and through using the point to glue, though some colloid 3 and the thickness of bubble celloidin 5 are little, still can guarantee the fastness. The thickness of the foam rubber 5 is 0.3mm, but the thickness is difficult to position and not good to adhere to the plastic cover plate 2, so that the problem that the foam rubber 5 is difficult to position and not good to adhere can be solved by reducing the thickness of the foam rubber 5, and the adhesion stability can be ensured.
The surface of the plastic cover plate 2 is lower than the end 6 of the notch end of the receiving groove of the rear case 1. Utilize plastic cover plate 2 to replace 3D glass, cause easily and float high phenomenon, be less than the terminal surface at the topmost of backshell 1 through the surface with plastic cover plate 2, can avoid floating high phenomenon. Wherein the surface of the plastic cover plate 2 is lower than the end part 6 of the groove opening end of the containing groove of the rear shell 1 by 0.05mm-0.08 mm.
Wherein, the end part 6 of the notch end of the containing groove corresponding to the rear shell 1 is arc-shaped. The smooth transition of tip 6 to the end edge of backshell 1 of the groove mouth end of the holding tank that backshell 1 corresponds is passed through chamfer 7, and chamfer 7 has the transition face that deviates from one side surface smoothness of backshell 1 with plastics apron 2 and meets. The phenomenon of scraping hands when the user touches can be avoided through the design.
Wherein, be equipped with clearance 8 between the cell wall of the holding tank of the edge of plastics apron 2 and backshell 1, the clearance distance that the clearance 8 lies in the one end of outside is less than the clearance distance that the clearance 8 lies in the one end of inside. That is to say, the matching surface of the plastic cover plate 2 and the rear shell 1 adopts a mode of being tight outside and loose inside, and on the premise of ensuring that the appearance gap is smaller, the matching difficulty caused by processing errors can be better reduced.
The edge of one side of the plastic cover plate 2 facing the rear shell 1 and positioned between the two foam rubbers 5 are also provided with buffer foam 9, and the buffer foam 9 is stuck on the plastic cover plate 2. The plastic cover plate 2 is lower in overall strength relative to 3D glass, good in softness, and capable of absorbing assembly gaps by arranging buffering foam 9. The buffering foam 9 is adhered to the back surface of the plastic cover plate 2 instead of the buffering foam 9 generally adhered to the surface of the rear shell 1, so that the anti-extrusion deformation capacity of the plastic cover plate 2 can be indirectly improved, the buffering foam 9 is utilized to absorb the extrusion of the rear shell 1 on the plastic cover plate 2, and the problem of sinking of the plastic cover plate 2 when the plastic cover plate is externally stressed can be effectively solved.
A silk-screen layer 11 is printed on the side of the plastic cover plate 2 facing the rear shell 1, so that the plastic cover plate 2 can present different patterns.
The rear cover assembly provided by the invention adopts the plastic cover plate 2 to replace 3D glass, so that the cost is reduced. The design of the rear cover component can solve the problem of integral floating height of the plastic cover plate 2; the problem of a gap between the plastic cover plate 2 and the rear shell 1 can be solved to a certain extent; the buffer foam 9 is additionally arranged on the surface of the plastic cover plate 2, so that the assembly gap is absorbed, and the problem of sinking of the plastic cover plate 2 in the pressing process is greatly reduced; under the condition that the thickness of the plastic cover plate 2 is increased, the reliability of structural testing can be ensured, the thickness of the whole machine is unchanged, and the whole machine is light and thin; and solves the problem that the periphery of the plastic cover plate 2 of the whole machine is warped; the problem of scratching hands by touching the back is solved; a sectional type foam adhesive 5 bonding mode is provided, and the cost of the whole machine is effectively reduced.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A rear cover assembly for a mobile terminal comprises a rear shell and is characterized in that a plastic cover plate (2) is arranged on the outer side of the rear shell (1), an accommodating groove for accommodating the plastic cover plate (2) is formed in one side, facing the plastic cover plate (2), of the rear shell (1), the plastic cover plate (2) is installed in the accommodating groove, and the edge, facing one side of the rear shell (1), of the plastic cover plate (2) is relatively and fixedly connected with the rear shell (1) through dispensing; foam cotton glue (5) is respectively arranged at the edge of one side of the plastic cover plate (2) facing the rear shell (1) and at the position close to each glue dispensing position; a buffer foam (9) is further arranged on the edge of one side, facing the rear shell (1), of the plastic cover plate (2) and between the two foam glues (5), and the buffer foam (9) is adhered to the plastic cover plate (2);
wherein the surface of the plastic cover plate (2) is lower than the end part (6) of the groove opening end of the accommodating groove of the rear shell (1); a gap (8) is arranged between the end edge of the plastic cover plate (2) and the groove wall of the containing groove of the rear shell (1), and the gap distance of one end, located outside, of the gap (8) is smaller than the gap distance of one end, located inside, of the gap (8).
2. Rear cover assembly according to claim 1, characterized in that the dispensing location is located at the corner of the side of the plastic cover plate (2) facing the rear shell (1).
3. The rear cover assembly according to claim 1, wherein the dot glue body (3) formed by dispensing and the foam (5) each have a thickness of less than 0.3 mm.
4. The rear cover assembly according to claim 1, wherein an adhesive overflow groove (4) for receiving excess adhesive is formed at the end corner of the receiving groove located at the rear shell (1) and recessed downward.
5. Rear cover assembly according to claim 1, characterized in that a silk-screen layer (11) is printed on the side of the plastic cover plate (2) facing the rear shell (1).
6. The rear cover assembly according to claim 1, wherein the end (6) of the notch end of the receiving groove corresponding to the rear shell (1) is arc-shaped; the end part (6) of the groove opening end of the containing groove of the rear shell (1) is in smooth transition with the end edge of the side end of the rear shell (1) through a chamfer (7), and the chamfer (7) is provided with a transition surface which deviates from the plastic cover plate (2) and is smoothly connected with the surface of one side of the rear shell (1).
7. A mobile terminal, characterized in that it comprises a back cover assembly according to any of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429074.7A CN108282569B (en) | 2017-12-26 | 2017-12-26 | Rear cover assembly for mobile terminal and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711429074.7A CN108282569B (en) | 2017-12-26 | 2017-12-26 | Rear cover assembly for mobile terminal and mobile terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108282569A CN108282569A (en) | 2018-07-13 |
| CN108282569B true CN108282569B (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711429074.7A Active CN108282569B (en) | 2017-12-26 | 2017-12-26 | Rear cover assembly for mobile terminal and mobile terminal |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112045495A (en) * | 2020-09-27 | 2020-12-08 | 海信电子科技（深圳）有限公司 | Method for processing battery cover and mobile terminal |
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| CN205266073U (en) * | 2015-10-10 | 2016-05-25 | 深圳市嘉信成光电科技有限公司 | Adopt electronic equipment lid of control by temperature change IML technology |
| CN107231774A (en) * | 2017-07-31 | 2017-10-03 | 广东欧珀移动通信有限公司 | Electronic device housing, electronic installation and electronic device housing processing method |
| CN107241882A (en) * | 2017-07-31 | 2017-10-10 | 广东欧珀移动通信有限公司 | Electronic device housing, electronic installation and electronic device housing processing method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951741A (en) * | 2009-07-10 | 2011-01-19 | 深圳富泰宏精密工业有限公司 | Case and manufacturing method thereof |
| CN203278921U (en) * | 2013-04-27 | 2013-11-06 | 北京华懋伟业精密电子有限公司 | New structure of dispensing process |
| CN205510130U (en) * | 2016-01-28 | 2016-08-24 | 福建省石狮市通达电器有限公司 | Novel lid behind metal mobile phone |
| CN206100140U (en) * | 2016-08-31 | 2017-04-12 | 上海锐鸿通信技术有限公司 | Mobile phone rear shell and cell -phone |
| CN106784444B (en) * | 2017-01-24 | 2020-05-19 | 捷开通讯(深圳)有限公司 | Intelligent terminal external member, intelligent terminal and lid behind detachable intelligence thereof |
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2017
- 2017-12-26 CN CN201711429074.7A patent/CN108282569B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205266073U (en) * | 2015-10-10 | 2016-05-25 | 深圳市嘉信成光电科技有限公司 | Adopt electronic equipment lid of control by temperature change IML technology |
| CN107231774A (en) * | 2017-07-31 | 2017-10-03 | 广东欧珀移动通信有限公司 | Electronic device housing, electronic installation and electronic device housing processing method |
| CN107241882A (en) * | 2017-07-31 | 2017-10-10 | 广东欧珀移动通信有限公司 | Electronic device housing, electronic installation and electronic device housing processing method |
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| CN108282569A (en) | 2018-07-13 |
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