CN108770162B - Anti-static device and terminal equipment - Google Patents
Anti-static device and terminal equipment Download PDFInfo
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- CN108770162B CN108770162B CN201810769437.XA CN201810769437A CN108770162B CN 108770162 B CN108770162 B CN 108770162B CN 201810769437 A CN201810769437 A CN 201810769437A CN 108770162 B CN108770162 B CN 108770162B
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- insulator
- reference ground
- metal part
- metal
- terminal equipment
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/02—Carrying-off electrostatic charges by means of earthing connections
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- Elimination Of Static Electricity (AREA)
- Telephone Set Structure (AREA)
Abstract
The invention discloses an anti-static device and terminal equipment, which are used for releasing static electricity on a metal part of the terminal equipment and avoiding the influence on the signal transmission performance of an antenna caused by the direct ground connection of the metal part and a reference ground. This antistatic device includes: the antenna comprises a metal part, an insulator and a reference ground, wherein the distance between the metal part and the antenna of the terminal equipment is smaller than a first preset value; the insulator is disposed between the metal component and the reference ground, and the insulator can be electrostatically broken down, so that static electricity on the metal component is discharged to the reference ground through the insulator which is electrostatically broken down.
Description
Technical Field
The invention relates to the field of terminal equipment, in particular to an anti-static device and terminal equipment.
Background
In order to prevent the damage caused by static electricity, a separate metal component (such as a camera decoration part) on the terminal device is usually electrically connected with a reference ground of the terminal device by using a conductive material, so that the static electricity generated by the metal component is conducted to the reference ground through the conductive material to be discharged.
For some metal parts at special positions in the terminal equipment, for example, metal parts near the radio frequency antenna, if a conductive material is used to connect with the reference ground, these metal parts may become extensions of the reference ground, which may affect the radiation of the antenna and reduce the signal transmission performance of the antenna. If the metal parts are suspended, the influence on the antenna radiation can be avoided, but the static electricity generated on the metal parts can be randomly released to other surrounding parts, and the normal operation of the terminal equipment is easily influenced.
Disclosure of Invention
The embodiment of the invention provides an anti-static device and terminal equipment, which are used for releasing static electricity on a metal part of the terminal equipment and avoiding the influence on the signal transmission performance of an antenna caused by the direct connection between the metal part and a reference ground.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an anti-static device is provided, which is applied to a terminal device, and includes: the antenna comprises a metal part, an insulator and a reference ground, wherein the distance between the metal part and the antenna of the terminal equipment is smaller than a first preset value; the insulator is disposed between the metal component and the reference ground, and the insulator can be electrostatically broken down, so that static electricity on the metal component is discharged to the reference ground through the insulator which is electrostatically broken down.
In a second aspect, there is provided a terminal device comprising the antistatic apparatus as described in the first aspect.
According to the anti-static device and the terminal equipment provided by the embodiment of the invention, the insulator is arranged between the metal part and the reference ground, so that the metal part is prevented from being directly connected with the reference ground, and the signal transmission performance of the antenna is improved; in addition, the insulator can be broken down by static electricity, so that the static electricity on the metal component is released to a reference ground, the static electricity on the metal component can be released in time, the influence of the static electricity release on the performance of the terminal equipment is avoided, and the performance of the terminal equipment is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an anti-static device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an antistatic device according to another 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 some, not all, embodiments of the present invention. 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.
As shown in fig. 1, an embodiment of the present invention provides an antistatic device, including: the metal member 110, the insulator 120, the conductive body 130, and the ground 140, each of which will be described in detail below.
The metal part 110 in this embodiment is generally a separate part on the terminal device, and generates static electricity during the daily use of the terminal device, and is electrically isolated from other conductive parts on the terminal device. The metal part 110 is typically a decoration, a key, etc. of the terminal device, and may specifically be at least one of the following: camera decoration, earphone decoration, metal side button etc..
In the prior art of metal parts, one possible phenomenon is: the metal part is not provided with a fixed static electricity discharge path, so that static electricity is easy to accumulate and other electronic components of the terminal equipment are damaged; another phenomenon is that: the metal part and the reference ground are directly electrically connected, so that the metal part becomes an extension of the reference ground and influences the signal transmission capability of the terminal equipment antenna.
The insulator 120 is disposed between the metal part 110 and the conductor 130, and mainly functions to block the direct electrical connection between the metal part 110 and the reference ground 140, so as to prevent the metal part 110 from extending to the reference ground 140, and further prevent the metal part 110 from affecting the radiation of the antenna, thereby improving the signal transmission performance of the antenna.
In order to increase the connection strength between the metal member 110 and the insulator 120, the metal member 110 and the insulator 120 may be bonded, and particularly may be fixed by bonding of an insulating double-sided tape, such as a PET double-sided tape. Of course, in other embodiments, the metal member 110 and the insulator 120 may be adhesively connected by a conductive adhesive.
The insulator 120 can be broken down by static electricity so that static electricity accumulated on the metal member 110 can be finally discharged to the ground 140 through the conductive body 130, particularly, see a static electricity discharge path shown by an arrow in fig. 1.
Preferably, the insulator 120 is made of porous material, so that when the electrostatic charge on the metal part 110 is accumulated, the electrostatic charge can be discharged to the conductor 130 through the cavity inside the insulator, and finally the electrostatic charge is conducted to the ground 140 by the conductor 130 to be discharged.
Preferably, the insulator 120 is a foam, which is a porous material with a cavity (or opening) inside. Thus, when static electricity is accumulated on the metal member 110, the static electricity can be discharged to the reference ground 140 through the opening inside the foam via the conductive body 130 according to the principle of the point discharge. Alternatively, the insulator 120 is specifically semi-open cell pure foam of Nitto SCF400TT, having a thickness of 0.1 mm.
Generally, the distance between the metal part 110 and the reference ground 140 is not fixed, but the insulator 120 in this embodiment may specifically conduct static electricity through tip discharge in order to adapt to the distance between the metal part 110 and the reference ground 140; the complexity of the structural design of the anti-static device is reduced; the application range of the anti-static device provided by the present application is expanded, the conductive body 130 is arranged between the insulator 120 and the reference ground 140, and the conductive body 130 can release the static electricity on the metal part 110 to the reference ground 140 in time.
Preferably, the conductive body 130 is specifically 3M-MSG6060F conductive foam, and the thickness of the conductive foam is 0.6 mm, but the conductive body 130 may also be made of other conductive materials such as metal.
In order to timely discharge the static electricity accumulated on the metal part 110 to the reference ground 140, preferably, the thickness of the insulator 120 may be smaller than a predetermined value, for example, smaller than 0.1 mm, wherein one end of the insulator 120 in the thickness direction is the metal part 110, and the other end is the reference ground 140. The thickness direction of the insulator 120 is specifically referred to the vertical direction of the insulator 120 in fig. 1.
It should be noted that, in the present embodiment, the conductive body 130 is disposed between the insulating body 120 and the reference ground 140, and in other embodiments, for example, when the distance between the metal part 110 and the reference ground 140 is small, the conductive body 120 may be omitted, in which case, one end of the insulating body is connected to the metal part, and the other end of the insulating body is directly connected to the reference ground. In the present embodiment, the conductive body 130 can be widely adapted to different distances between the metal member 110 and the reference ground 140; meanwhile, the complexity of the structural design of the anti-static device is reduced; the application range of the antistatic device provided by the application is expanded.
In order to increase the connection strength between the insulator 120 and the conductor 130, the insulator 120 and the conductor 130 may be bonded, and particularly, may be fixed by bonding of a conductive double-sided tape. Of course, since the thickness of the insulating glue is small, the electrostatic discharge is not affected in general, and in order to save cost, in other embodiments, the insulator 120 and the conductor 130 may be connected by bonding with the insulating glue with a low price.
In order to timely discharge the static electricity accumulated on the metal part 110 to the ground reference 140, it is preferable that a protrusion, specifically, a pyramid-shaped protrusion or a needle-shaped protrusion, is further disposed on the upper surface of the conductive body 130 to facilitate a point discharge and timely discharge the static electricity accumulated on the metal part 110 to the ground reference 140. As the upper surface of the conductive body 130, specifically, a surface where the conductive body 130 is in contact with the insulator 120 may be mentioned.
It is understood that in other embodiments, if the upper conductive body 130 is not provided, a protrusion may be directly provided on the upper surface of the reference ground 140, which can also facilitate the point discharge, so as to timely discharge the static electricity accumulated on the metal part 110 to the reference ground 140, and specifically, for the upper surface of the reference ground 140, the surface of the reference ground 140 contacting the insulator 120 may be used.
In order to increase the connection strength between the conductive body 130 and the reference ground 140, the conductive body 130 and the reference ground 140 may also be adhered, and particularly may be fixed by adhering a conductive double-sided adhesive tape.
The reference ground 140 may be a common reference ground in the circuit of the terminal device, and may be referred to as a zero potential point as a base point potential of all element potentials in the terminal device.
According to the anti-static device provided by the embodiment of the invention, the insulator is arranged between the metal part and the reference ground, so that the metal part is prevented from being directly connected with the reference ground, and the signal transmission performance of the antenna is improved; in addition, the insulator can be subjected to electrostatic breakdown, so that static electricity accumulated on the metal component is released to a reference ground, the static electricity on the metal component can be released in time, the influence of the static electricity release on the performance of the terminal equipment is avoided, and the performance of the terminal equipment is improved.
In addition, by the antistatic device provided by the embodiment of the invention, when the antenna position of the terminal equipment conflicts with the requirement of electrostatic processing, more design space is provided for the structural design of the terminal equipment, which is beneficial to the optimal design of the structure of the terminal equipment.
As shown in fig. 2, in the static electricity prevention apparatus according to another embodiment of the present invention, a distance between the metal part 110 and the antenna (specifically, see the antenna area shown in fig. 2) may be smaller than a preset value, and preferably, the preset value is 5mm, which does not affect the radiation performance of the antenna, so that not only is the signal transmission capability of the antenna improved, but also the static electricity is prevented from being released to other parts 150 on the terminal device to affect the performance of the terminal device, so that the performance of the terminal device is improved.
Preferably, as shown in fig. 2, the insulator 120 is embodied as semi-open cell pure insulating foam of helidong SCF400TT, having a thickness of 0.1 mm or less. The conductor 130 is specifically 3M-MSG6060F conductive foam, and the thickness of the conductive foam is 0.6 mm.
Through setting up insulator 120 as insulating bubble cotton, conductor 130 sets up as the electrically conductive bubble cotton, no matter be insulating bubble cotton or the cotton hardness of electrically conductive bubble is lower, can play the cushioning effect for the motion of metal part 110 and reference ground 140, has further improved terminal equipment's anti falling performance.
The thickness of the insulating foam used by the insulator 120 is less than or equal to 0.1 mm, so that the insulating property is satisfied, the thickness of the insulating foam is small, static electricity on the metal part is easily released to a reference ground through a cavity in the insulating foam made of the porous material, and the static electricity releasing capacity of the anti-static device is further improved.
Alternatively, in other embodiments, the insulator 120 may also be an insulator with a grid-like structure similar to a window screen, and the cavity in the middle of the insulator forms an electrostatic conduction path.
Based on the above anti-static device provided by the embodiment of the present invention, the present invention further provides a terminal device, where the terminal device includes an antenna and the anti-static device according to the foregoing embodiment, and the anti-static device is disposed in the terminal device body.
The terminal device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal device, a wearable device, a pedometer, and the like.
The terminal device provided by the embodiment of the invention can achieve the same technical effects as the anti-static device provided by the embodiment, and the details are not repeated herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. An antistatic device is applied to terminal equipment and is characterized by comprising:
a metal part, an insulator and a ground reference, wherein,
the distance between the metal part and the antenna of the terminal equipment is smaller than a first preset value, and the first preset value is 5 mm;
the insulator is arranged between the metal component and the reference ground, the insulator is made of a porous material and can be subjected to electrostatic breakdown, static electricity on the metal component is released to the reference ground through the insulator subjected to electrostatic breakdown, and the surface of the reference ground, which is in contact with the insulator, is provided with a protrusion.
2. The device of claim 1, wherein the anti-static device further comprises an electrical conductor, wherein the electrical conductor is disposed between the insulator and the reference ground.
3. The antistatic device of claim 2,
the metal member, the insulator, the conductor, and the reference ground include at least one of the following connection relationships:
the metal component and the insulator are bonded;
the insulator and the conductor are bonded;
the conductor is bonded to the reference ground.
4. The antistatic device of claim 3,
the metal component and the insulator are bonded through insulating glue; or
The insulator and the conductor are bonded through conductive adhesive; or
The conductive body and the reference ground are bonded through conductive adhesive.
5. The antistatic device of claim 1,
the thickness of the insulator is less than a second preset value.
6. The antistatic device of claim 5,
the insulator is foam.
7. The static dissipative apparatus as claimed in claim 1, wherein said metal component comprises at least one of the following of said terminal device:
a camera trim piece;
an earpiece trim; and the number of the first and second groups,
metal side keys.
8. A terminal device, characterized in that it comprises an antistatic device as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810769437.XA CN108770162B (en) | 2018-07-13 | 2018-07-13 | Anti-static device and terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810769437.XA CN108770162B (en) | 2018-07-13 | 2018-07-13 | Anti-static device and terminal equipment |
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| Publication Number | Publication Date |
|---|---|
| CN108770162A CN108770162A (en) | 2018-11-06 |
| CN108770162B true CN108770162B (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810769437.XA Active CN108770162B (en) | 2018-07-13 | 2018-07-13 | Anti-static device and terminal equipment |
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| CN (1) | CN108770162B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426880B (en) * | 2019-08-14 | 2022-02-11 | 昆山国显光电有限公司 | Display panel and device |
| CN115279001B (en) * | 2021-08-27 | 2023-07-28 | 荣耀终端有限公司 | Electrostatic protection structure and electronic equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807563A (en) * | 2009-02-17 | 2010-08-18 | 和硕联合科技股份有限公司 | Electrostatic protection element and electronic device |
| CN206575462U (en) * | 2017-01-20 | 2017-10-20 | 广东欧珀移动通信有限公司 | A kind of mobile terminal |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0917592A (en) * | 1995-04-28 | 1997-01-17 | Casio Comput Co Ltd | Static electricity infiltration preventing structure for electronic equipment |
| SE513069C2 (en) * | 1997-03-03 | 2000-07-03 | Ericsson Telefon Ab L M | Protection against electrostatic discharge in a portable communication device |
| CN206100241U (en) * | 2016-10-28 | 2017-04-12 | 广州视源电子科技股份有限公司 | Camera electrostatic protection structure |
| CN207531214U (en) * | 2017-11-24 | 2018-06-22 | 维沃移动通信有限公司 | A kind of electronic equipment |
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2018
- 2018-07-13 CN CN201810769437.XA patent/CN108770162B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101807563A (en) * | 2009-02-17 | 2010-08-18 | 和硕联合科技股份有限公司 | Electrostatic protection element and electronic device |
| CN206575462U (en) * | 2017-01-20 | 2017-10-20 | 广东欧珀移动通信有限公司 | A kind of mobile terminal |
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| CN108770162A (en) | 2018-11-06 |
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