CN106714491B - Manufacturing method of sealing assembly and terminal - Google Patents
Manufacturing method of sealing assembly and terminal Download PDFInfo
- Publication number
- CN106714491B CN106714491B CN201710095950.0A CN201710095950A CN106714491B CN 106714491 B CN106714491 B CN 106714491B CN 201710095950 A CN201710095950 A CN 201710095950A CN 106714491 B CN106714491 B CN 106714491B
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- terminal
- substrate
- sealing
- seal
- seal assembly
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/06—Hermetically-sealed casings
- H05K5/061—Hermetically-sealed casings sealed by a gasket held between a removable cover and a body, e.g. O-ring, packing
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Telephone Set Structure (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention discloses a manufacturing method of a sealing assembly and a terminal. The manufacturing method of the sealing assembly comprises the following steps: providing a support sheet comprising a middle portion and an edge portion connecting the middle portion; forming a seal portion on the edge portion; removing the middle portion of the support sheet on which the sealing portion is formed to obtain the sealing assembly. In the manufacturing method of the sealing assembly, the sealing part is supported by the edge part, so that the whole sealing assembly is high in rigidity, and the sealing assembly is not easy to deform and install.
Description
Technical Field
The invention relates to the field of terminals, in particular to a manufacturing method of a sealing assembly and a terminal.
Background
At present, people have more and more functional requirements on terminals such as mobile phones, for example, the terminals need to reach a certain waterproof grade. However, the conventional terminal seal is low in rigidity and easily deformed, which is disadvantageous in mounting the seal.
Disclosure of Invention
The embodiment of the invention provides a manufacturing method of a sealing assembly and a terminal.
The manufacturing method of the sealing assembly comprises the following steps:
providing a support sheet comprising a middle portion and an edge portion connecting the middle portion;
forming a seal portion on the edge portion;
removing the middle portion of the support sheet on which the sealing portion is formed to obtain the sealing assembly.
The terminal of the embodiment of the invention comprises the sealing component manufactured by the manufacturing method of the sealing component of the embodiment.
In the manufacturing method of the sealing assembly and the terminal, the sealing part is supported by the edge part, so that the rigidity of the whole sealing assembly is higher, and the sealing assembly is difficult to deform and easy to install.
Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow chart of a method of making a seal assembly according to an embodiment of the present invention;
FIGS. 2-4 are process schematic diagrams of a method of making a seal assembly according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a sub-seal assembly of an embodiment of the present invention;
fig. 6-7 are schematic views of a process for manufacturing a support sheet according to an embodiment of the present invention;
fig. 8 is a schematic plan view of a support sheet with a seal according to an embodiment of the present invention;
fig. 9 is a schematic plan view of a terminal according to an embodiment of the present invention;
fig. 10 is a perspective view of a terminal according to an embodiment of the present invention;
fig. 11 is an exploded schematic view of a terminal according to an embodiment of the present invention;
FIG. 12 is a schematic cross-sectional view of the terminal of FIG. 10 taken along line XII-XII;
fig. 13 is an enlarged schematic view of a terminal XIII part of fig. 12;
fig. 14 is another schematic cross-sectional view of a terminal according to an embodiment of the present invention;
fig. 15 is an enlarged schematic view of the XV portion of the terminal of fig. 14;
fig. 16 is a schematic cross-sectional view of the terminal of fig. 10 taken along line XVI-XVI.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
Referring to fig. 1 to 4, a method for manufacturing a sealing assembly according to an embodiment of the present invention includes the following steps:
s11, providing a support sheet 200, the support sheet 200 including a middle portion 202 and an edge portion 204 connecting the middle portion 202;
s12, forming a seal 206 on the edge portion 204;
s13, the middle portion 202 of the support sheet 200 formed with the seal 206 is removed to obtain the seal assembly 100.
In the method of manufacturing the seal assembly according to the embodiment of the present invention, the seal portion 206 is supported by the edge portion 204, so that the rigidity of the entire seal assembly 100 is high, and the seal assembly 100 is not easily deformed and is easily mounted.
Specifically, the edge portion 204 may serve as a base for the seal 206, and when the seal assembly 100 is applied to a terminal, the base with the seal 206 may be adhered to a housing surface of the terminal to complete the installation of the seal assembly 100. The substrate may be bonded to the housing surface of the terminal, for example, by adhesive.
In the present example, the supporting sheet 200 is a rectangular parallelepiped sheet, but in other examples, the supporting sheet 200 may be a sheet having other shapes. The width of the edge portion 204 can be determined according to actual needs. The edge portion 204 is the portion of the support sheet that ultimately remains on the seal assembly 100.
The middle portion 202 may be blanked away with a knife.
In some embodiments, referring to fig. 1 and 4, the edge portion 204 is annular and the sealing portion 206 is annular.
In this manner, the seal assembly 100 may be manufactured in a ring shape such that the seal assembly 100 may provide uniform waterproofing performance for each orientation of the terminal.
Specifically, in one example, the seal 206 may be formed on the rim portion 204 by an injection molding process. Specifically, the support sheet 200 may be first placed in the mold cavity, and then the molten seal material may be injected into the mold cavity. After the sealing material is cured, the mold is removed, so that the sealing portion 206 is formed on the support sheet. The sealing material may be silicone. In some examples, the seal material may cover the entire surface of the support sheet 200. In other examples, the seal material may cover only the surface of the edge portion 204 to form the support sheet 200 with the seal 206 as shown in fig. 3.
In removing the intermediate portion 202, the support sheet 200 with the seal 206 may be blanked with an annular knife to form an annular edge portion 204 and seal 206. The size of the annular cutter matches the size of the intermediate portion 202 to be removed.
In some embodiments, the method of making a seal assembly further comprises the steps of: the seal assembly 100 is cut into a plurality of sub-seal assemblies 208.
Thus, the sub-seal assembly 208 is installed at a portion of the terminal where water is required, so that the structure of the terminal is simple.
Specifically, referring to fig. 5, each sub-seal assembly 208 includes an edge portion 204 and a seal 206 formed on the edge portion 204. Similarly, when the sub-seal assembly 208 is applied to the terminal, the rim portion 204 with the seal 206 is bonded to the surface of the housing to be waterproofed of the terminal.
In some embodiments, the material of the support sheet 200 includes polyethylene terephthalate (PET), and the material of the seal 206 includes silicone or foam.
Therefore, the cost is low and the waterproof effect is good.
When foam is used as the material of the sealing portion 206, foam may be directly sprayed on the edge portion 204 when the sealing portion 206 is formed on the edge portion 204. When the material of the sealing portion 206 is silicon, the sealing portion 206 may be formed on the edge portion 204 by an injection molding process.
In some embodiments, the step of providing a support sheet comprises:
providing a flat sheet 300;
the sheet 300 is processed in a matched mold manner to form the support sheet 200 a.
Thus, the support sheet 200a can be formed into a desired shape.
Specifically, in an example, referring to fig. 6 and 7, an upper die 400 and a lower die 402 may be provided, wherein a processing block 404 is protruded from a lower surface of the upper die 400, a processing surface 406 of the processing block 404 is in a shape required to be processed by the supporting sheet 200a, a processing cavity 410 is formed in an upper surface 408 of the lower die 402, a bottom surface of the processing cavity 410 is in a shape required to be processed by the supporting sheet 200a, and a shape of the processing surface 406 of the processing block 404 is matched with a shape of the bottom surface of the processing cavity 410.
The flat sheet 300 is placed in the processing chamber 410, and then the upper mold 400 and the lower mold 402 are closed so that the processing surface 406 and the bottom surface of the processing chamber 410 process the flat sheet 300 into a shape matching the shape of the processing surface 406 and the shape of the bottom surface of the processing chamber 410 to form the supporting sheet 200 a.
In the present example, the support sheet 200a formed after the mold clamping process includes a first flat portion 210, a slant portion 212, and a second flat portion 214, and the slant portion 212 connects the first flat portion 210 and the second flat portion 214. When the seal assembly 100 is subsequently formed, the resulting edge portion includes a first planar portion 210, a beveled portion 212, and a second planar portion 214, respectively. Thus, the method is suitable for the surface of the shell with the convex-concave shape, and the surface of the shell with the convex-concave shape can be beneficial to the assembly of the shell.
In some embodiments, referring to fig. 8, the edge portion 204 defines a plurality of openings 216 spaced apart along the circumference of the middle portion 202.
The step of forming a seal 206 on the rim portion 204 includes:
the sealing portion 206 is caused to fill the plurality of openings 216.
Thus, the sealing portion 206 has high bonding strength with the edge portion 204, and the sealing portion 206 is not easy to fall off from the edge portion 204, thereby ensuring the waterproof effect of the sealing assembly 100.
Specifically, the opening 216 may be formed by a blind hole or a through hole opened in the surface of the edge portion 204.
Referring to fig. 9, a terminal 500 according to an embodiment of the present invention includes a sealing assembly 100 manufactured by the method for manufacturing a sealing assembly according to any of the above embodiments.
In the terminal 500 according to the embodiment of the present invention, the sealing portion 206 is supported by the edge portion 204, so that the rigidity of the entire sealing assembly 100 is high, and the sealing assembly 100 is not easily deformed and is easily mounted.
Specifically, the terminal 500 may be an electronic terminal or other terminal requiring a waterproof function. The electronic terminal is, for example, an electronic terminal such as a mobile phone, a tablet computer, or a smart watch. In the example shown in fig. 9, the electronic terminal is a mobile phone.
It should be noted that the above explanation of the technical features and advantages of the manufacturing method of the sealing assembly is also applicable to the terminal 500 of the embodiment of the present invention, and is not detailed herein to avoid redundancy.
In some embodiments, referring to fig. 10-12, terminal 500 includes:
a first case 10, the first case 10 including a first surface 11, the edge portion 204 being adhered to the first surface 11 along a circumferential direction of the first case 11;
a second housing 20, the second housing 20 including a second surface 21, the seal assembly 100 sealingly connecting the second surface 21 and the first surface 11.
Since the sealing member 100 is adhered to the first surface 11, the sealing member 100 and the first housing 10 can be formed separately, and then the sealing member 100 and the first housing 10 are adhered and fixed together, so that the cost of the terminal can be reduced, and a wide range of applications can be facilitated.
Specifically, the first housing 10 and the second housing 20 are combined to form a sealed chamber 102, and water is difficult to enter the sealed chamber 102.
It can be understood that the electronic terminal includes electronic components (not shown) such as a circuit board and a battery, and the electronic components can be disposed in the sealed chamber 102, so that the electronic components can be prevented from being out of normal use due to short circuit and other faults, and the service life of the terminal is prolonged.
The first and second housings 10 and 20 may have a rectangular parallelepiped shape such that the housing formed after the first and second housings 10 and 20 are assembled has a rectangular parallelepiped shape. In order to make the shell more beautiful, the corner positions of the shell can be rounded, so that the shell is in a rounded rectangle shape.
The first casing 10 may be an integrally formed structure, and the second casing 20 may be an integrally formed structure, so that the sealing effect of the first casing 10 and the second casing 20 is better. In one example, when the first and second housings 10 and 20 are made of plastic, both the first and second housings 10 and 20 may be formed through an injection molding process.
In another example, when the first and second housings 10 and 20 are made of metal, the first and second housings 10 and 20 may be formed by CNC (Computer numerical control) machining.
The first housing 10 may be a front case of the terminal, and correspondingly, the second housing 20 is a rear cover of the terminal. Of course, the first housing 10 may also be a rear cover of the terminal, while the second housing 20 is a front shell of the terminal.
When the first housing 10 is a front case of the terminal, it can be understood that a display assembly of the electronic terminal is disposed on the first housing 10. As such, the user is enabled to view the content displayed by the display component. The display assembly comprises a touch panel, a display screen and a flexible circuit board connected with the display screen, and the touch panel covers the display screen and the flexible circuit board. The display screen may be connected to a main circuit board of the electronic terminal through a flexible circuit board.
In some embodiments, referring to fig. 12 and 13, in some embodiments, the first housing 10 includes a first substrate 13 and a first sidewall 14 extending from a periphery of the first substrate 13, the first sidewall 14 includes a first surface 11, and the first surface 11 is opposite to the first substrate 13.
The second housing 20 includes a second substrate 23 and a second sidewall 24 extending from a periphery of the second substrate 23, the second substrate 23 includes a second surface 21, and the second sidewall 24 is connected to the first sidewall 14.
In this manner, the sealing portion 206 may seal the gap between the first sidewall 14 of the first casing 10 and the second substrate 23 of the second casing 20, so that water may be prevented from entering the space formed by the first casing 10 and the second casing 10.
In certain embodiments, the second sidewall 24 covers the first sidewall 14.
In this way, when water flows into the seal chamber 102 from the gap between the first side wall 14 and the second side wall 24, the path along which the water flows is lengthened and the flow direction is changed, so that the waterproof effect of the seal assembly 100 can be further improved.
In some embodiments, referring to fig. 14 and 15, the first housing 10 includes a first substrate 13 and a first sidewall 14a extending from a periphery of the first substrate 13, the first substrate 13 includes a first surface 11 a;
the second casing 20 includes a second substrate 23 and a second sidewall 24a extending from a periphery of the second substrate 23, the second sidewall 24a includes a second surface 21a, the second surface 21a is opposite to the second substrate 23, and the second sidewall 24a is connected to the first sidewall 14a in a matching manner.
In this manner, the sealing portion 206 may seal the gap between the second sidewall 24a of the second housing 20 and the first substrate 13 of the first housing 10, so that water may be prevented from entering the space formed by the first housing 10 and the second housing.
In certain embodiments, the first sidewall 14a covers the second sidewall 24 a.
In this way, when water flows into the seal chamber 102 from the gap between the first side wall 14a and the second side wall 24a, the path along which the water flows is lengthened and the flow direction is changed, so that the waterproof effect of the seal assembly 100 can be further improved.
In some embodiments, the number of the seal assemblies 100 is plural, and the plurality of seal assemblies 100 are arranged at intervals in the thickness direction of the first sidewall.
As shown in the example of fig. 13 and 15, the number of the seal assemblies 100 is two, and the two seal assemblies 100 are arranged at intervals in the left-right direction. It is understood that in other embodiments, the number of seal assemblies 100 may be more than two, such as three, four, or five, etc. As such, the sealing connection of the plurality of seal assemblies 100 may further improve the waterproofing effect of the seal assemblies 100.
In some embodiments, referring to fig. 11, the sealing assembly 100 continuously extends along the circumference of the first housing 10 to form a ring shape.
In this way, the annular seal assembly 100 seals the gap between the first casing 10 and the second casing 20 over the entire surface, thereby further improving the waterproof effect of the seal assembly 100.
Specifically, the seal assembly 100 is annular, and correspondingly, the rim portion 204 and the seal portion 206 are also annular.
In other embodiments, the seal assembly 100 includes a plurality of sub-seal assemblies 208 spaced apart along the circumference of the first casing 10.
In some embodiments, referring to fig. 11, the first surface 11 includes a first concave-convex surface 15, the second surface 21 includes a second concave-convex surface 25, and the first concave-convex surface 15 and the second concave-convex surface 25 are sealed and coupled by the sealing assembly 100.
In this way, the first concave-convex surface 15 and the second concave-convex surface 25 are connected in a matching manner, so that the first shell 10 and the second shell 20 can be conveniently assembled in place.
Specifically, referring to fig. 11 and 16, in the embodiment of the present invention, the first surface 11 includes two first planes 16 and two first convexities 15, the two first planes 16 are respectively located at the upper and lower sides of the terminal 500, the two first convexities 15 are respectively located at the left and right sides of the terminal 500, and each first plane 16 connects the two first convexities 15. The second surface 25 includes two second flat surfaces (not shown) respectively located at the upper and lower sides of the terminal 500 and two second convexo-concave surfaces 25 respectively located at the left and right sides of the terminal 500. The first plane 16 is disposed opposite the second plane.
The first convexoconcave surface 15 includes a first sub-plane 151, a first inclined surface 152 and a second sub-plane 153, the first inclined surface 152 connects the first sub-plane 151 and the second sub-plane 153, the first sub-plane 151 connects the first plane 16 located at the lower side, the second sub-plane 153 connects the first plane 16 located at the upper side, and the second sub-plane 153 is higher than the first sub-plane 151.
The second convexoconcave surface 25 includes a third sub-plane 251, a second inclined surface 252 and a fourth sub-plane 253, the second inclined surface 252 connects the third sub-plane 251 and the fourth sub-plane 253, the third sub-plane 251 connects the second plane located at the lower side, the fourth sub-plane 253 connects the second plane located at the upper side, and the third sub-plane 251 is lower than the fourth sub-plane 253.
Thus, the structure of the convex-concave surface is simpler.
It will be appreciated that in other embodiments, the concave-convex surface may be other configurations of concave-convex surfaces, and in other embodiments, the concave-convex surface may be located in other orientations of the terminal.
It should be noted that, in order to ensure the waterproofing effect, the shape of the sealing assembly 100 matches the shape of the first convexo-concave surface 15, as shown in fig. 16.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A method of making a seal assembly for a terminal, comprising the steps of:
providing a support piece, wherein the support piece is a cuboid-shaped sheet, the support piece comprises a middle part and an edge part connected with the middle part, the support piece comprises a first plane part, an inclined plane part and a second plane part, and the inclined plane part is connected with the first plane part and the second plane part;
forming a sealing part on the upper surface of the edge part, wherein the edge part is a substrate of the sealing part, the support sheet is made of polyethylene terephthalate, the sealing part is made of silica gel or foam, and the sealing part is formed by the following steps: placing the support sheet in a mold cavity, injecting a molten sealing part material into the mold cavity, and demolding after the sealing part material is solidified, so that the sealing part is formed on the support sheet;
removing the middle portion of the support sheet on which the sealing portion is formed to obtain the sealing assembly, the middle portion being blanked off by a cutter;
the edge part is provided with a plurality of openings which are distributed at intervals along the circumferential direction of the middle part,
the step of forming a seal portion on the edge portion includes:
filling the plurality of openings with the sealing portion.
2. The method of making a seal assembly according to claim 1, wherein said edge portion is annular and said seal portion is annular.
3. The method of making a seal assembly according to claim 2, further comprising the steps of:
cutting the seal assembly into a plurality of sub-seal assemblies.
4. The method of making a seal assembly according to claim 1, wherein said step of providing a support tab comprises:
providing a flat sheet;
processing the sheet material in a matched mold manner to form the support sheet.
5. A terminal comprising a seal assembly made by the method of making a seal assembly of claim 1.
6. The terminal of claim 5, wherein the terminal comprises:
a first case including a first surface to which the edge portion is bonded in a circumferential direction of the first case;
a second housing including a second surface, the seal assembly sealingly connecting the second surface and the first surface.
7. The terminal of claim 6, wherein the first housing includes a first substrate and a first sidewall extending from a periphery of the first substrate, the first sidewall including the first surface, the first surface opposite the first substrate;
the second shell comprises a second substrate and a second side wall extending from the periphery of the second substrate, the second substrate comprises the second surface, and the second side wall is connected with the first side wall in a matched mode.
8. The terminal of claim 6, wherein the first housing includes a first base plate and a first sidewall extending from a periphery of the first base plate, the first base plate including the first surface;
the second casing comprises a second substrate and a second side wall extending from the periphery of the second substrate, the second side wall comprises a second surface, the second surface is opposite to the second substrate, and the second side wall is connected with the first side wall in a matching mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095950.0A CN106714491B (en) | 2017-02-22 | 2017-02-22 | Manufacturing method of sealing assembly and terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710095950.0A CN106714491B (en) | 2017-02-22 | 2017-02-22 | Manufacturing method of sealing assembly and terminal |
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| CN106714491A CN106714491A (en) | 2017-05-24 |
| CN106714491B true CN106714491B (en) | 2019-12-27 |
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| CN201710095950.0A Active CN106714491B (en) | 2017-02-22 | 2017-02-22 | Manufacturing method of sealing assembly and terminal |
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| CN111065011A (en) * | 2018-10-16 | 2020-04-24 | 北京小米移动软件有限公司 | Sealing member, sealing structure and terminal device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| MY120112A (en) * | 1996-04-02 | 2005-09-30 | Meguro Chemical Industry Co Ltd | Sealing tape and method and apparatus for its production, and method of repairs with it |
| JP2002161981A (en) * | 2000-11-27 | 2002-06-07 | Nissan Motor Co Ltd | Seal ring and manufacturing method of seal ring and oil hydraulic seal device |
| JP2007092904A (en) * | 2005-09-29 | 2007-04-12 | Nichias Corp | Sheet gasket and its manufacturing method |
| CN102102760A (en) * | 2009-12-17 | 2011-06-22 | 刘邦民 | Dust-proof seal ring and manufacturing process |
| CN105374765B (en) * | 2014-09-02 | 2018-05-04 | 中芯国际集成电路制造(上海)有限公司 | A kind of chip seal ring structure and preparation method thereof |
| JP6476002B2 (en) * | 2015-02-19 | 2019-02-27 | 日立オートモティブシステムズ株式会社 | Electronic control device, motor control device, and electric fluid pump |
| JP2017026062A (en) * | 2015-07-23 | 2017-02-02 | 河村電器産業株式会社 | Seal member and method for mounting seal member to electric equipment housing box |
| CN106358413A (en) * | 2016-11-04 | 2017-01-25 | 广东欧珀移动通信有限公司 | Waterproof component and electronic device |
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