CN107613707B - Shell, manufacturing method thereof and mobile terminal - Google Patents

Shell, manufacturing method thereof and mobile terminal Download PDF

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Publication number
CN107613707B
CN107613707B CN201710928257.7A CN201710928257A CN107613707B CN 107613707 B CN107613707 B CN 107613707B CN 201710928257 A CN201710928257 A CN 201710928257A CN 107613707 B CN107613707 B CN 107613707B
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China
Prior art keywords
micro
sealing layer
housing
gap
medium
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CN201710928257.7A
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Chinese (zh)
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CN107613707A (en
Inventor
王聪
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to CN201710928257.7A priority Critical patent/CN107613707B/en
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Abstract

The invention provides a shell, a manufacturing method of the shell and a mobile terminal. The manufacturing method of the shell comprises the following steps: providing a housing base body, wherein the housing base body is provided with a micro-seam; forming a first sealing layer at the bottom of the micro-seam; forming a second sealant layer within the micro-seam; and forming at least one third sealing layer in the micro-gap to fill the micro-gap. The invention is used for improving the sealing quality of the shell in the mobile terminal.

Description

Shell, manufacturing method thereof and mobile terminal
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a shell, a manufacturing method thereof and a mobile terminal with the shell.
Background
At present, a micro-slit is always arranged on a shell to install a functional component or transmit optical signals, electric signals and the like. Based on this structure, in order to ensure the overall aesthetic appearance and the dustproof and waterproof performance of the case, it is necessary to seal the micro-gap by a sealing medium.
Disclosure of Invention
The invention provides a shell, a manufacturing method thereof and a mobile terminal with the shell, which are used for improving the sealing quality of the shell in the mobile terminal.
The invention also provides a manufacturing method of the shell, which comprises the following steps:
providing a housing base body, wherein the housing base body is provided with a micro-seam;
forming a first sealing layer at the bottom of the micro-seam;
forming a second sealant layer within the micro-seam;
and forming at least one third sealing layer in the micro-gap to fill the micro-gap.
The invention also provides a shell, which comprises a shell substrate, wherein the shell substrate is provided with a micro-gap, the micro-gap is sequentially provided with a first sealing layer, a second sealing layer and at least one third sealing layer, and the first sealing layer is arranged at the bottom of the micro-gap.
The invention also provides a mobile terminal comprising the shell.
According to the shell, the manufacturing method thereof and the mobile terminal provided by the invention, the first sealing layer, the second sealing layer and the at least one third sealing layer are formed in the micro-seam of the shell substrate, wherein the first sealing layer is used for sealing the defects at the bottom of the micro-seam, the second sealing layer is used for further sealing the defects at the bottom of the micro-seam, the third sealing layer is used for filling the micro-seam, and the sealing layer is fully filled in the micro-seam by increasing the forming times of the sealing layer and improving the sealing quality of the sealing layer formed each time, so that the problems of air bubbles generated in the micro-seam, glue leakage caused by insufficient filling of the micro-seam and the like are prevented, the sealing quality of the shell is greatly improved, and the performance of the mobile terminal is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a flowchart of a method for manufacturing a housing according to an embodiment of the present invention.
Fig. 2 is a partially enlarged structural schematic diagram of a housing according to an embodiment of the present invention.
FIG. 3 is a cross-sectional view along AA' of FIG. 2.
Fig. 4 is a schematic diagram of a manufacturing method of a housing according to an embodiment of the present invention.
Fig. 5 is a schematic view of another manufacturing method of the housing according to the embodiment of the invention.
Fig. 6 is a partial structural schematic diagram of a housing according to a first embodiment of the present invention.
Fig. 7 is a partial structural schematic view of another housing according to the first embodiment of the present invention.
Fig. 8 is a partial structural schematic diagram of a housing according to a second embodiment of the present invention.
Fig. 9 is a partial structural schematic diagram of another housing provided in the embodiment of the present invention.
Fig. 10 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Furthermore, the following description of the various embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the invention may be practiced. Directional phrases used in this disclosure, such as, for example, "top," "bottom," "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side," and the like, refer only to the orientation of the appended drawings and are, therefore, used herein for better and clearer illustration and understanding of the invention, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be considered limiting of the invention.
The numerical range represented by "to" in the present specification means a range including numerical values before and after "to" as a minimum value and a maximum value, respectively. In the drawings, structures that are similar or identical are denoted by the same reference numerals.
Referring to fig. 1 to 3, fig. 1 is a manufacturing method 10 of a housing according to an embodiment of the present invention, where the manufacturing method 10 is used for manufacturing a housing. Referring to fig. 2 and 3, fig. 2 is a schematic partial structure diagram of the housing 100, and fig. 3 is a cross-sectional view of the housing 100 along the direction AA' in fig. 2. The housing 100 is machined from sheet metal. The housing 100 is applied to a mobile terminal, which may be a mobile phone, a tablet computer, a notebook computer, or the like. In this embodiment, the housing 100 is a rear battery cover of a mobile phone.
Referring to fig. 1, the method 10 for manufacturing the housing includes the following steps.
Step 101, please refer to fig. 2, providing a housing base 110, wherein the housing base 110 has a micro-slit 120.
In this embodiment, the housing base 110 is made of metal and is used for manufacturing a rear battery cover of a mobile phone. The metal case 100 shields electromagnetic waves, so that the built-in antenna of the mobile phone cannot receive and transmit electric signals. In order to solve the problem of shielding electromagnetic waves from the metal case 100 of the mobile phone, a micro-slit 120 is formed on the metal case 100 so that the built-in antenna of the mobile phone radiates signals through the micro-slit 120.
In one embodiment, the step 101 includes the following steps.
Step 1011 provides the housing blank 111.
In this embodiment, referring to fig. 3, the shell rough blank 111 is first cut from a shell raw material, and then is subjected to multiple die stamping to form a shell plate with a uniform thickness, and then the shell plate is subjected to machining, milling, grinding, and cutting by using a Computer Numerical Control (CNC) machine to form the shell rough blank 111. The housing blank 111 is substantially in the form of a rectangular plate. The housing blank 111 has a first surface 1111 and a second surface 1112 disposed opposite the first surface 1111.
Step 1012, forming the substrate 112 on the housing blank 111.
In this embodiment, a substrate 112 is molded on the first surface 1111 of the housing blank 111. The substrate 112 is laminated on the first surface 1111 as a whole. The base 112 is used to provide a support function when the housing blank 111 is processed by a cutting process, so as to prevent the housing blank 111 from bending and deforming.
In one embodiment, the substrate 112 is formed using an injection molding process. The step 1012 includes the following steps.
Step 1, providing a mould. Referring to fig. 4, the mold includes an upper mold 141 and a lower mold 142. The upper mold 141 and the lower mold 142 correspond to the second surface 1112 and the first surface 1111, respectively.
And 2, putting the shell rough blank 111 into the die. A first surface 1111 of the housing blank 111 is provided on the lower die 142, the second surface 1112 faces the upper die 141, and a smaller gap 143 is left between the first surface 1111 and the lower die 142.
And 3, injecting a base raw material into the mold. The base stock material may be a liquid plastic stock. The base raw material is injected into the gap 143 between the first surface 1111 and the upper mold 141.
And 4, forming the substrate 112. The upper mold 141 and the lower mold 142 are pressed against each other, the substrate raw material is pressed to mold the substrate 112, and the substrate 112 is molded on the first surface 1111.
Step 1013, cutting the housing rough blank 111 and the substrate 112.
In this embodiment, referring to fig. 5, the rough shell 111 is placed on a computer numerical control machine, and a CNC milling cutter 150 is used to form the micro-gap 120 in the rough shell 111. Since the substrate 112 is attached to the first surface 1111, cutting from the second surface 1112 toward the first surface 1111 severs only the housing blank 111, without severing the substrate 112, to form the micro-gap 120 extending through between the first surface 1111 and the second surface 1112. When forming the plurality of micro-slits 120, the substrate 112 may be used to support the housing blank 111, and the substrate 112 keeps the cutting process between the adjacent micro-slits 120 from bending and deforming.
In one embodiment, step 1013 further comprises: after cutting the housing blank 111 and the substrate 112, the CNC milling cutter 150 completely cuts through the housing blank 111, so that a recess 123 is formed in the housing blank 111. A CNC milling cutter 150 does not cut the substrate 112, so a groove 121 is formed in the substrate 112. Since the CNC milling cutter 150 cuts the housing blank 111 and the substrate 112 simultaneously, the groove 121 is aligned with the empty groove 123. It is understood that, in the present embodiment, the milling cutter 150 cuts the housing blank 111 means a through cut from the first surface 1111 toward the second surface 1112, rather than cutting the housing blank 111 into two separate pieces.
Step 1014, obtaining the housing base 110.
In this embodiment, referring to fig. 5, the housing base 110 includes a housing rough blank 111, a base 112, and a micro-slit 120. The substrate 112 is attached to the first surface 1111 of the housing blank 111. The micro-gap 120 penetrates through the housing blank 111 to form a hollow 123 in the housing blank 111, and the micro-gap 120 partially extends into the substrate 112 to form the groove 121 on the substrate 112.
To ensure the overall hermeticity of the housing 100, the micro-slits 120 need to be sealed. In the molding process of the substrate 112, defects such as air holes and gaps may exist in the substrate 112 due to defects of the injection molding process, and the like, and the defects such as air holes and gaps are also exposed at the bottom of the micro-gap 120 in the cutting process of the micro-gap 120. During the process of sealing the micro-gap 120, the defects such as air holes and gaps at the bottom of the micro-gap 120 may cause problems such as poor sealing or generation of air bubbles and glue leakage, thereby affecting the overall appearance and sealing quality of the housing 100.
By forming the first sealing layer 131, the second sealing layer 132 and at least one third sealing layer 133 in the micro-gap 120 of the housing substrate, wherein the first sealing layer 131 is used for sealing the defect at the bottom of the micro-gap 120, the second sealing layer 132 is used for further sealing the defect at the bottom of the micro-gap 120, and the third sealing layer 133 is used for filling the micro-gap 120, the sealing layer is fully filled in the micro-gap 120 by increasing the forming times of the sealing layer and improving the sealing quality of the sealing layer formed each time, so that the problems of air bubbles generated in the micro-gap 120 or glue leakage caused by the fact that the micro-gap 120 is not fully filled are prevented, the sealing quality of the housing is greatly improved, and the performance of the mobile terminal is improved.
Referring to fig. 1, the method 10 for manufacturing the housing includes the following steps.
Step 102, forming a first sealing layer 131 on the bottom of the micro-seam 120.
In this embodiment, referring to fig. 6, by using the first sealing layer 131 at the bottom of the micro-gap 120, at this time, the micro-gap 120 is not filled with the first sealing layer 131, and in the sealing process, by adjusting the forming process of the first sealing layer 131, the first sealing layer 131 is fully filled in the defects of the hole 124, the gap, and the like at the bottom of the micro-gap 120, so as to improve the sealing quality of the micro-gap 120.
In one embodiment, the step 102 includes the following steps.
Step 1, please refer to fig. 7, a first medium is filled into the bottom of the micro-gap 120. The first medium may be a liquid glue, which has a good fluidity and can flow into the smaller holes 124, gaps in the bottom of the micro-gap 120.
And 2, processing the first medium to form a first sealing layer 131. Wherein the first sealant 131 fills the recess 121.
In this embodiment, the first sealing layer 131 is formed by curing the first medium through a thermal curing process or an ultraviolet curing process.
Optionally, in the process of curing the first medium by a heating and curing process, the temperature of the heat curing may be 80 to 110 ℃, and a lower temperature is selected as far as possible for curing, so as to avoid that the first medium cracks or shrinks or deforms or separates from the inner peripheral wall of the micro-seam 120 due to an excessively high curing temperature.
Optionally, the time for thermal curing can be 0.5-1 h. If the curing time is too short, the first medium may not be completely cured, and if the curing time is too long, the first medium may be cracked and deformed.
Optionally, after solidifying the first medium, cooling the first medium to 20-40 ℃. If the temperature of the first medium is too high, the fluidity and shrinkage performance of the subsequent second medium may be affected, and the sealing performance of the housing 100 may be affected.
Referring to fig. 1, the method 10 for manufacturing the housing includes the following steps.
Step 103, forming a second sealant 132 in the micro-seam 120.
In this embodiment, referring to fig. 6, a second sealing layer 132 is formed on the first sealing layer 131, the second sealing layer 132 does not fill the micro-gap 120, and the second sealing layer 132 is used to further seal the defects of the air holes, gaps, and the like at the bottom of the micro-gap 120, and cooperates with the first sealing layer 131 to improve the sealing quality at the bottom of the micro-gap 120 and reduce the defects of the air holes, gaps, and the like.
With this construction, the step of forming the second sealant 132 within the micro-slits 120 includes:
step 1, filling a second medium in the micro-gap 120. The second medium may be a liquid glue, which has good fluidity and can flow into the smaller holes and gaps in the bottom of the micro-gap 120. The second medium and the first medium may be the same material or different materials.
Step 2, processing the second medium to form a second sealing layer 132. The second medium may be processed in the same process as the first medium. The second medium is cured by heating or ultraviolet light irradiation to form the second sealing layer 132.
In one embodiment, referring to fig. 8, in the step of obtaining the housing base 110, due to the different materials of the substrate 112 and the housing blank 111, during the injection molding cooling process, the substrate 112 and the housing blank 111 have different shrinkage rates, so that a gap 122 is formed between the substrate 112 and the housing blank 111. Wherein the gap 122 is located between the groove 121 and the empty groove 123. Specifically, the top wall of the substrate 112 is attached to the first surface 1111, and the gap 122 extends from the groove into the space between the top wall of the substrate 112 and the first surface 1111. At this time, the micro-gap 120 is filled with a second medium, and the second medium flows into the gap 122, so that the second sealing layer 132 fills the gap 122, thereby overcoming the defects in the micro-gap 120 and improving the sealing quality of the micro-gap 120.
Referring to fig. 1, the method 10 for manufacturing the housing includes the following steps.
Step 104, please refer to fig. 8, at least one third sealing layer 133 is formed in the micro-gap 120 to fill the micro-gap 120. In this embodiment, at least one third sealing layer 133 is used to fill the empty trench 123. The number of layers of the third sealing layer 133 may be determined according to an actual filling space. Preferably, the number of the third sealing layer 133 may be 3 to 10.
In one embodiment, the step 104 includes the following steps.
Step 1, filling a third medium in the micro-gap 120. The third medium may be a liquid glue, which has good fluidity and fills the empty groove 123.
Further, the third medium has a degree of flow that is less than the degree of flow of the first medium and the second medium, wherein the degree of flow represents a measure of fluid flowability. The reason is that the size of the holes 124 and the size of the gaps 122 in the groove 121 are smaller than the size of the micro-slits 120, and the first medium and the second medium have relatively good fluidity, so that the first medium and the second medium can be sufficiently filled in the holes 124 and the gaps 122 in the groove 121, thereby improving the sealing quality of the housing 100.
And 2, processing the third medium to form a third sealing layer 133. The third sealing layer 133 is disposed in the empty groove 123. The process of the third medium may be the same as the process of the first medium. The third medium is cured by heating or ultraviolet light irradiation to form the third sealing layer 133.
In one embodiment, step 104 further comprises the following steps.
Step 1, after the third sealing layer 133 is formed, whether the micro-gap 120 is filled is determined.
And 2, if not, continuing to form a third sealing layer 133 in the micro-seam 120.
And 3, if so, stopping forming the third sealing layer 133 in the micro-seam 120.
In this embodiment, whether to continue to fill the third medium is determined by determining whether to fill the micro-gap 120 after filling the third sealing layer 133, which is convenient for accurately controlling the filling process.
In one embodiment, after the step of forming at least one third sealant 133 within the micro-gap 120, the third sealant 133 protrudes from the micro-gap 120. The step of obtaining the housing further comprises the steps of: grinding the micro-slits 120 of the housing substrate 110 to make the surface of the third sealing layer 133 flush with the second surface 1112 of the housing blank 111 to increase the smooth feeling of the second surface 1112 of the housing blank 111, thereby increasing the user experience.
In another embodiment, the step of forming at least one third sealant 133 within the micro-cracks 120 is further followed by the steps of: a fourth sealing layer 134 is molded into the micro-crack 120, the fourth sealing layer 134 being configured to fill the micro-crack 120.
The step of forming fourth sealant layer 134 in the micro-slits 120 includes the following steps.
Step 1, filling a fourth medium in the micro-gap 120.
And 2, processing the fourth medium to form a fourth sealing layer 134. Wherein the fourth medium may be a liquid size. The fourth medium is mixed with pigment, and after the fourth medium is solidified, the colored micro-seam 120 packaging tape is formed, and can play a role in marking and decorating.
Referring to fig. 2 to 10, fig. 10 is a mobile terminal 200 according to an embodiment of the present invention. The mobile terminal 200 may be any device with communication and storage functions, such as: the system comprises intelligent equipment with a network function, such as a tablet personal computer, a mobile phone, an electronic reader, a remote controller, a personal computer, a notebook computer, vehicle-mounted equipment, a network television, wearable equipment and the like. The mobile terminal 200 includes a housing 100, and the housing 100 has a micro-slit 120. The number of the micro-slits 120 may be plural, such as 120a and 120b in fig. 1.
Referring to fig. 2 and fig. 3, fig. 2 is a partially enlarged view of the housing 100 of the mobile terminal 200 in fig. 10, wherein the housing 100 includes a housing base 110. The housing base 110 includes a micro-slit 120. The micro-gap 120 is sequentially provided with a first sealing layer 131, a second sealing layer 132 and at least one third sealing layer 133 for sealing the micro-gap 120. Wherein the first sealing layer 131 is disposed at the bottom of the micro-gap 120.
Optionally, the micro-slit 120 may be a strip-shaped through hole, a circular through hole, a square through hole, an irregular through hole, or the like. The slit width of the micro-slit 120 or the inner diameter of the through-hole may be less than 1 mm.
In the present embodiment, by forming a plurality of sealing layers (3 layers or more) in the micro-gap 120, wherein the first sealing layer 131 is used to seal the defect at the bottom of the micro-gap 120, the second sealing layer 132 is used to further seal the defect at the bottom of the micro-gap 120, and the third sealing layer 133 is used to fill up the micro-gap 120, the sealing layer is made to fully fill the micro-gap 120 by increasing the number of times of forming the sealing layer and improving the sealing quality of the sealing layer formed each time, thereby preventing the problems of glue leakage and the like caused by bubbles generated in the micro-gap 120 or insufficient gap filling, greatly improving the sealing quality of the housing 100, and improving the performance of the mobile terminal 200.
First embodiment
Referring to fig. 6, the housing base 110 includes a housing rough blank 111 and a substrate 112. The base 112 is attached to the bottom wall of the housing blank 111. The micro-slits 120 penetrate through the housing blank 111 to form empty slots 123. The micro-slits 120 extend into the substrate 112 to form recesses 121.
In this embodiment, the housing blank 111 includes a first surface 1111 (i.e., a bottom wall of the housing blank 111) and a second surface 1112 that are oppositely disposed. The empty groove 123 penetrates through the first surface 1111 and the second surface 1112.
Referring to fig. 6, a first sealant 131 is formed at the bottom of the micro-gap 120, and the first sealant 131 is filled in the groove 121.
In one embodiment, a first medium is filled at the bottom of the micro-gap 120 one or more times, and after the filling is completed, the first medium is cured by an ultraviolet curing or thermal curing process to form a first sealing layer 131, and the first sealing layer 131 fills the groove 121.
In another embodiment, the first medium is filled into the bottom of the micro-gap 120, the first medium is cured, and the first medium is filled into the micro-gap and then cured for a plurality of times until the groove 121 is filled.
In the embodiment, the filling amount of the first medium filled in a single time is reduced and the filling times are increased to ensure that the first medium has better fluidity, so that the problems of glue leakage and the like caused by bubbles generated in the micro-gaps 120 or insufficient filling of the micro-gaps 120 are reduced.
The present application is not limited to the specific composition of the first medium. The first medium may be resin, ultraviolet light curing glue, etc. It is understood that the first medium is a liquid colloid and has fluidity.
In this embodiment, the base 112 is a rubber material, and the shell blank 111 is made of a metal material. The housing blank 111 and the substrate 112 are made of different materials, so that the bonding reliability of the two is poor. During the molding process of the substrate 112, defects such as air holes, gaps, etc. may exist in the substrate 112, and during the cutting process of the micro-cracks 120, the defects such as air holes, gaps, etc. are also exposed at the bottom of the micro-cracks 120.
In one embodiment, referring to fig. 7, the bottom wall of the groove 121 has a hole 124, and the first medium is filled at the bottom of the micro-gap 120, so that the first sealing layer 131 is filled in the hole 124, thereby improving the sealing quality of the housing 100.
Referring to fig. 7, a second sealing layer 132 and at least one third sealing layer 133 are formed in the micro-gap, the second sealing layer 132 is used to further seal the defect at the bottom of the micro-gap 120, and the at least one third sealing layer 133 is used to fill the empty groove 123.
In this embodiment, the second sealant 132 and the at least one third sealant 133 may be formed in the same manner as the first sealant 131.
In one embodiment, the third sealant 133, furthest from the first sealant 131, is mixed with a colorant to facilitate easy recognition of the location of the antenna micro-gap 120 by a user; or the color material is consistent with the color presented by the second surface 1112, so as to achieve the consistency of appearance color.
Further, the surface of the third sealant 133 furthest from the first sealant 131 is flush with the second surface 1112 of the housing blank 111 to increase the feel of smoothness of the touch of the housing 100, thereby increasing the user experience.
In this embodiment, the first sealing layer 131 is sealed in the groove 121, and since the size of the groove 121 is smaller than that of the micro-slit 120, the first medium needs to have better fluidity.
In one embodiment, the filling amount of the first medium is smaller than the filling amounts of the second medium and the third medium. Because the filling amount of the first medium is relatively small, the first medium has relatively good fluidity in the micro-gap 120 and can flow into the groove 121, so that the first sealing layer 131 is fully filled in the groove 121, thereby preventing the problems of air bubbles generated at the bottom of the micro-gap 120, glue leakage caused by insufficient filling of the groove 121, and the like, and further improving the overall performance of the housing 100 of the mobile terminal 200.
In another embodiment, the fluidity of the first medium is greater than the fluidity of the second medium and the fluidity of the third medium. Because the first medium has relatively good fluidity in the micro-gap 120, the first medium can flow into the groove 121, so that the problems of air bubbles generated at the bottom of the micro-gap 120, glue leakage caused by insufficient filling of the micro-gap 120 and the like are prevented.
Optionally, the materials of the first medium, the second medium and the third medium may be the same or different.
In other embodiments, the first sealing layer 131, the second sealing layer 132, and the third sealing layer 133 may be formed by filling different media a plurality of times.
Second embodiment
Referring to fig. 8, unlike the first embodiment, the micro-slit 120 further includes a gap 122. The gap 122 is disposed between the groove 121 and the empty groove 123. The second sealing layer 132 is filled in the gap 122 to seal the gap 122.
In this embodiment, the fluidity of the second medium is higher than the fluidity of the third medium. Because the second medium has relatively good fluidity in the micro-gap 120, the second medium can flow into the gap 122, thereby preventing the problems of glue leakage and the like caused by bubbles generated at the bottom of the micro-gap 120 and insufficient filling of the gap 122.
In summary, although the present invention has been described with reference to the preferred embodiments, the present invention is not limited to the preferred embodiments, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention is defined by the appended claims.

Claims (17)

1. A shell manufacturing method is characterized by comprising the following steps:
providing a shell base body, wherein the shell base body comprises a shell rough blank and a substrate arranged on the shell rough blank, the shell base body is provided with a micro-seam, and the micro-seam comprises a hollow groove arranged on the shell rough blank and a groove arranged on the substrate;
forming a first sealing layer at the bottom of the micro-seam, wherein the first sealing layer fills the groove and is filled in the hole on the bottom wall of the groove;
forming a second sealing layer in the micro-seam, wherein the second sealing layer is at least used for further filling the hole of the bottom wall of the groove;
and forming at least one third sealing layer in the micro-gap to fill the micro-gap.
2. The method of manufacturing a housing of claim 1, wherein the step of providing a housing base includes:
providing a shell rough blank;
forming a substrate on the housing blank;
cutting the shell rough blank and the substrate;
a housing base is obtained.
3. The method of making a housing of claim 2, wherein said step of forming a substrate on said housing blank comprises:
providing a mould;
placing the shell blank into the mold;
injecting a base raw material into the mold;
and forming the substrate.
4. The method of manufacturing a housing of claim 2, wherein said step of cutting said housing blank and said substrate comprises: forming a groove on the substrate and forming a hollow groove in the shell rough blank, wherein the groove is opposite to the hollow groove.
5. The method of making a housing of claim 4, wherein said step of forming a first sealant layer on the bottom of said micro-slits comprises:
filling a first medium to the bottom of the micro-seam;
processing the first medium to form a first sealing layer;
wherein the first sealing layer fills the recess.
6. The method for manufacturing a housing according to claim 5, wherein in the step of obtaining the housing base body, a gap is provided between the substrate and the housing blank, wherein the gap is located between the groove and the empty groove;
the step of forming a second sealant layer within the micro-seam comprises:
filling a second medium in the micro-gap;
processing the second medium to form a second sealing layer;
wherein the second sealing layer also fills the gap.
7. The method of making a casing of claim 6, wherein said step of forming at least one third sealant layer within said micro-seam comprises:
filling a third medium in the micro-gap;
processing the third medium to form a third sealing layer;
wherein the third sealing layer is arranged in the empty groove.
8. The method of making a casing of claim 7, wherein the step of forming at least one third sealant layer within the micro-seam further comprises: after the third sealing layer is formed, judging whether the micro-seams are filled; if not, continuing to form a third sealing layer in the micro-seam; and if so, stopping forming the third sealing layer in the micro-seam.
9. A casing manufacturing method according to any one of claims 1 to 8, wherein the step of forming at least one third sealing layer in the micro-cracks is followed by the further step of: forming a fourth sealant layer in the micro-seam.
10. The method of making a housing of claim 9, wherein said step of forming a fourth sealant layer in said micro-slits comprises:
filling a fourth medium in the micro-gap;
processing the fourth medium to form a fourth sealing layer;
wherein a colorant is mixed in the fourth medium.
11. The method of manufacturing a housing of claim 7, wherein the step of obtaining the housing comprises: and grinding the micro-seams of the shell substrate to enable the surface of the third sealing layer to be flush with the surface of the shell substrate.
12. The method of manufacturing a casing according to claim 7, wherein in the step of filling the micro-gap with a third medium, a fluidity of the third medium is smaller than fluidity of the first medium and the second medium.
13. The utility model provides a shell, a serial communication port, the casing includes the casing base member, the casing base member includes casing rough blank and basement, the basement laminate in the diapire of casing rough blank, the casing base member is equipped with the slit, the slit run through in the casing rough blank to form the dead slot, just the slit stretches into in the basement, in order to form the recess, be equipped with first sealing layer, second sealing layer and at least one deck third sealing layer in proper order in the bottom of slit, first sealing layer is located the bottom of slit, first sealing layer is filled the recess, wherein, the diapire of recess has the hole, first sealing layer fill in the hole, the second sealing layer is used for further right at least the hole of the diapire of recess is filled.
14. The housing of claim 13, wherein the micro-slit further comprises a gap, the gap being disposed between the groove and the void, the second sealing layer filling the gap.
15. The housing of claim 14, wherein the at least one third sealant layer fills the void.
16. The casing of claim 15, wherein a surface of the third seal layer, distal from the first seal layer, of the at least one third seal layer is flush with a surface of the casing blank.
17. A mobile terminal characterized by comprising the housing of any one of claims 13 to 16.
CN201710928257.7A 2017-09-30 2017-09-30 Shell, manufacturing method thereof and mobile terminal Expired - Fee Related CN107613707B (en)

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CN105517389A (en) * 2016-01-08 2016-04-20 广东欧珀移动通信有限公司 Mobile terminal housing and processing method thereof
CN105530788A (en) * 2014-12-26 2016-04-27 比亚迪股份有限公司 Communication equipment metal shell and preparation method thereof
CN105855127A (en) * 2016-04-20 2016-08-17 广东欧珀移动通信有限公司 Hair crack filling method for structural component, structural component and mobile terminal
CN105960131A (en) * 2016-06-23 2016-09-21 东莞劲胜精密组件股份有限公司 3C (Computer, Communication, Consumer Electronics) product shell and preparation method thereof
CN105979741A (en) * 2016-06-30 2016-09-28 东莞劲胜精密组件股份有限公司 3C electronic product shell and manufacturing method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105530788A (en) * 2014-12-26 2016-04-27 比亚迪股份有限公司 Communication equipment metal shell and preparation method thereof
CN105517389A (en) * 2016-01-08 2016-04-20 广东欧珀移动通信有限公司 Mobile terminal housing and processing method thereof
CN105855127A (en) * 2016-04-20 2016-08-17 广东欧珀移动通信有限公司 Hair crack filling method for structural component, structural component and mobile terminal
CN105960131A (en) * 2016-06-23 2016-09-21 东莞劲胜精密组件股份有限公司 3C (Computer, Communication, Consumer Electronics) product shell and preparation method thereof
CN105979741A (en) * 2016-06-30 2016-09-28 东莞劲胜精密组件股份有限公司 3C electronic product shell and manufacturing method thereof

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