CN1937878A - Static discharge protection management structure for electronic device - Google Patents
Static discharge protection management structure for electronic device Download PDFInfo
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- CN1937878A CN1937878A CN 200510106415 CN200510106415A CN1937878A CN 1937878 A CN1937878 A CN 1937878A CN 200510106415 CN200510106415 CN 200510106415 CN 200510106415 A CN200510106415 A CN 200510106415A CN 1937878 A CN1937878 A CN 1937878A
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- housing
- static
- guide hole
- electronic installation
- static guide
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Abstract
It is protection and management structure of an electronic device of electrostatic discharge (ESD), including the first shell, the second shell and the grounding end. The first shell is provided with the first surface and the second shell is provided with the second surface. Along the first surface and the second surface, there is surface distance (Clearance), which is characterized by: There is at least one electrostatic pilot hole between the first shell and the second shell and the length of electrostatic pilot hole is less than the length of the surface. These electrostatic discharges to the grounded end along electrostatic pilot hole to protect electronic components from static discharge damage, when there is a few of electrostatic charge existing around the electronic devices.
Description
Technical field
The relevant a kind of preventing electro-static discharge of the present invention produces the electronic installation that destroys function, and particularly relevant for a kind of electronic installation with protection and management static discharge.
Background technology
Static discharge phenomenon (Electro static discharge) is that the occurring in nature current potential changes fast, and this phenomenon often causes the damage of electronic installation.
Please refer to Figure 1A, Figure 1A illustrates the mobile phone stereogram.Electronic installation such as mobile phone 100 comprise body 101 and casing 103.Comprise circuit board and many electronic building bricks such as transistor, resistance and electric capacity etc. in the body 101.When manufacturer all can reserve tolerance clearance during at assembling electronic device, in order to assembling.Yet also because so, the gap of mechanism and formation that structure is assembled also becomes the path of static discharge flow of charge warp.Shown in Figure 1A, the inlet that electrostatic charge flowed into when minim gap between button 105 and the casing 103 102 became static discharge with regard to regular meeting.Please refer to Figure 1B, Figure 1B is an electronic installation static discharge profile.Electrostatic charge is flowed in the casing 103 outward by casing 103 by gap 102, to discharge.If electrostatic charge is in high potential with respect to electronic building brick 119 or during than electronegative potential, discharge with the electronic building brick 119 of the mobile phone 100 of flowing through or to electronic building brick 119, when electrostatic charge and 119 potential differences of electronic building brick are excessive, just easily cause the damage of mobile phone 100 internal electrical components 119 this moment.
At present in the electronic product, the practice that solves the static discharge phenomenon is to utilize seamless system shell or conductive surface, cover or the conducting district of conduction and ground connection as static discharge, yet such practice but define the material on electronic product surface and influence attractive in appearance, and as above-mentioned Figure 1A and 1B in the reservation tolerance clearance at button edge but be to accomplish Electrostatic protection.
In view of this be necessary to propose a kind of in fact for the do one electrostatic defending measure of place, casing ectosome slit.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of safeguard structure, when the static discharge phenomenon produces, can pass through electric safeguard structure with managing electronic device static discharge, the guiding electrostatic charge of safety makes electrostatic charge can not cause damage to the assembly in the electronic installation.
According to purpose of the present invention, a kind of static managerial structure is proposed, comprising: first housing, second housing, at least one static guide hole and at least one earth terminal.Second housing has a contact-making surface and a noncontact face, wherein has a creepage distance along the composition surface that first housing engages with second housing.The static guide hole is between noncontact face and the composition surface or between noncontact face and the contact-making surface, and wherein the noncontact face end of static guide hole to contact-making surface end has a conduction distance, and the conduction distance is less than creepage distance.And earth terminal is corresponding to the position of static guide hole.When wherein having several electrostatic charges around the electronic installation and existing, so these electrostatic charges are discharged to earth terminal along the static guide hole.
According to purpose of the present invention, reintroduce a kind of safeguard structure of electronic installation static discharge, it comprises first housing, second housing and an earth terminal.First housing has a first surface, second housing has a second surface, composition surface along first surface and second surface, has a creepage distance, it is characterized in that: have at least one static guide hole between first housing and second housing, and the length of static guide hole system is less than the length of creepage distance, and earth terminal is corresponding to the position setting of static guide hole.
For above-mentioned purpose of the present invention, characteristics and advantage can be become apparent, a preferred embodiment cited below particularly, and conjunction with figs. is elaborated.
Description of drawings
Figure 1A is the mobile phone stereogram.
Figure 1B is an electronic installation static discharge profile.
Fig. 2 is at the profile that engages between two housings arbitrarily according to electronic installation among the present invention one first embodiment.
Fig. 3 engages profile between the electronic installation different housings of second embodiment.
Fig. 4 is the notebook schematic bottom view.
Fig. 5 A is the mobile phone button of the 4th embodiment and the profile between casing.
Fig. 5 B directly offers static guide hole profile on first housing.
Embodiment
A kind of safeguard structure with managing electronic device static discharge, it comprises first housing, second housing and earth terminal, first housing has a first surface, second housing has second surface, along between the composition surface of first surface and second surface, has creepage distance, be characterized in: have at least one static guide hole between first housing and second housing, and the length of static guide hole is less than the length of creepage distance, when wherein having several electrostatic charges around the electronic installation and existing, so these electrostatic charges are discharged to earth terminal along the static guide hole.
First embodiment
For example in mobile phone, personal digital assistant and the notebook, the housing that the housing of different parts is coupled all can have a composition surface to electronic installation.For example, has a composition surface between the battery accommodating groove of notebook and the battery, the button of mobile phone and the composition surface of casing.And the situation that many static discharges generations destroy is to stem from this composition surface.Below will illustrate in any electronic installation how on this composition surface, to protect electronic installation by the management electrostatic discharge protection structure.
Please refer to Fig. 2, it is at the profile that engages between two housings arbitrarily according to electronic installation among the present invention one first embodiment.Electrostatic discharge protective and managerial structure comprise: first housing 201, second housing 203 and an earth terminal 207.First housing 201 and second housing 203 can be identical material, and for example both are similarly plastics.Therefore for convenience of description, first housing 201 and second housing 203 have identical electrical conductivity in this embodiment, and earth terminal 207 is to be positioned on the circuit board 205 of electronic installation.The many electronic building bricks of configuration are for example on the circuit board 205: integrated circuit (IC), transistor, electric capacity, resistance and diode etc., and to control function such as exclusive disjunction.
On first housing 201, have first surface 209, the second housings 203 and then have second surface 211.Second housing 203 is in order to organizing first housing 201.For the user, the contact-making surface 204 of second housing 203 (housing is outer) is for can contact the face that brushes up against.The face that the noncontact face 208 of second housing 203 (in the housing) can not brush up against for the user.And be the composition surface between the surface of 208 in contact-making surface 204 and noncontact face, this composition surface is the surface of first surface 209 and second surface 211 contacts.And between the composition surface of 211 of first surface 209 and second surfaces, having a creepage distance L, this creepage distance L is contact-making surface 204 arrives noncontact face 208 along the composition surface distance.In the present embodiment, the length of creepage distance L is L=L1+L2+L3, L1-L3 is respectively the contact distance of first surface 209 and 211 different sections of second surface, wherein L1 is the vertical range of the turning point 217a of contact-making surface 204 to second housings 203, L3 is the vertical range of noncontact face 208 to turning point 217a, and L2 is the horizontal range of turning point 217a to another turning point 217b.In the present embodiment, ESD-protection structure is between noncontact face 208 and composition surface, for example offers a static guide hole 213 on the second surface 211 of second housing 204.The length of static guide hole 213 is L3, so the total length of creepage distance L is greater than L1+L3, and wherein L1+L3 is the conduction distance of present embodiment, that is the conduction distance is less than creepage distance.When the carrier in electronic installation 200 external worlds had the negative electrical charge of static, negative electrical charge was easy to and can flows into along crack between 211 of first surface 209 and the second surfaces.At first surface 209 with identical material and second surface 211, its electrical conductivity is identical.Therefore for negative electrical charge, can natural direction flow toward shortest path.Therefore, when negative electrical charge slips into the turning point 217a that arrives first surface 209 and second surface 211, can select the path flow of static guide hole 213.And owing to can prearrange the position of configuration earth terminal 207, so negative electrical charge can directly be discharged to earth terminal 207, electrically to neutralize.Mode whereby, the electronic building brick 219 below first surface 209 and second surface 211 can not cause damage because of static discharge.
Second embodiment
Please refer to Fig. 3, Fig. 3 engages profile between the electronic installation different housings of second embodiment.In a second embodiment, first housing 301 and second housing 303 are plastic material, yet the hole wall 314 that is different from the static guide hole 313 of previous embodiment is gone back the electrodepositable metal, as metal materials such as copper facing, silver or gold.Because the material electrical conductivity of metal is higher than the electrical conductivity of material such as plastics, therefore more can make the electric charge of static discharge quicken to flow into the earth terminal 307 of circuit board 305, avoids static discharge and produce the function of destroying and reach better protection electronic building brick 319.It should be noted that, to be higher than the electrical conductivity of materials such as plastics only be an embodiment to the material electrical conductivity of metal among this embodiment, right hypothesis housing be the carbon fiber material also can, the spirit of present embodiment is that the hole wall 314 of static guide hole 313 can have the electrical conductivity that an electrical conductivity is higher than housing.
The 3rd embodiment
With notebook in the electronic installation is example, please refer to Fig. 4, and Fig. 4 is the notebook schematic bottom view.The Winchester disk drive 408 of notebook 400 configuration can be assembled in the groove 424 of casing.Be easy to have electrostatic charge flows on the composition surface of groove 424 and Winchester disk drive 408.The present is offered several static guide holes 413 on the sidewall of groove 424, when there was static charge buildup in the external world, these static guide holes 413 became the path of flow of charge warp.And different be that these static guide holes 413 need not be connected to the earth terminal of circuit board, and can be connected to the earth terminal 407 at casing or other place, also can reach to prevent that static discharge from producing the result who destroys to electronic building brick.
The 4th embodiment
Please refer to Fig. 5 A, Fig. 5 A is the mobile phone button of the 4th embodiment and the profile between casing.When between first housing 501 (casing) of mobile phone and second housing 503 (button), have two composition surfaces, in present embodiment, also can offer two static guide hole 513a and 513b in second housing, 503 correspondences.So that electrostatic charge is directed to earth terminal 507a and 507b.
And the another kind of practice please refer to Fig. 5 B, and Fig. 5 B directly offers static guide hole profile on first housing.On first housing 501, can offer static guide hole 513c adjacent to first surface 509, and 513 times earth terminal 507 is set at the static guide hole, the electric charge that accumulates on first housing 501 by the practice like this can directly enter among the static guide hole 513c, and can be by infiltrating in the first surface 509.
The described safeguard structure of the foregoing description is offered static guide hole (shortest path) when first housing and second housing are all insulator such as plastics, electrostatic charge can be by naturally being directed into earth terminal with shortest path, and can not damage other electronic building brick.Therefore to manufacturer and Yan Buxu changes manufacture craft and increases cost, the material that need not change electronic installation is metal for example, only needs can reach anti-Du's static discharge and produce the purpose of destroying by offer the static guide hole in housing.
In sum; though the present invention discloses as above with a preferred embodiment; yet it is not in order to limit the present invention; any person skilled in the art person without departing from the spirit and scope of the present invention; when the variation that can do various equivalences or replacement, so protection scope of the present invention is when looking accompanying being as the criterion that the application's claim scope defined.
Claims (10)
1. static managerial structure comprises:
One first housing;
One second housing has a contact-making surface and a noncontact face, and wherein this first housing has a composition surface and from this contact-making surface to this noncontact face one creepage distance arranged along this composition surface with this second housing place of engaging;
At least one static guide hole, between this noncontact face and this composition surface or between this noncontact face and this contact-making surface, wherein this noncontact face end of this static guide hole to this contact-making surface end has a conduction distance, and should conduct electricity distance less than this creepage distance; And
At least one earth terminal is corresponding to the position of this static guide hole.
2. static managerial structure as claimed in claim 1 is characterized in that this static guide hole is connected directly to this earth terminal.
3. static managerial structure as claimed in claim 1 is characterized in that this earth terminal is arranged at a circuit board of this electronic installation.
4. static managerial structure as claimed in claim 1 is characterized in that this first housing and this second housing have identical material.
5. static managerial structure as claimed in claim 4, the material that it is characterized in that this first housing and this second housing is plastics.
6. static managerial structure as claimed in claim 1 is characterized in that this static guide hole coated metal is in the hole wall of this static guide hole.
7. static managerial structure as claimed in claim 1, it is characterized in that this electronic installation be selected from a mobile phone, a personal digital assistant and a computer one of them.
8. the safeguard structure of an electronic installation static discharge, it comprises one first housing, one second housing and an earth terminal, this first housing has a first surface, this second housing has a second surface, along this first surface and this second surface one composition surface is arranged, have a creepage distance between this first housing and this second housing, it is characterized in that:
Have at least one static guide hole between this first housing and this second housing, and the length of this static guide hole is less than the length of this creepage distance, this earth terminal is corresponding to the position of this static guide hole.
9. the safeguard structure of electronic installation static discharge as claimed in claim 8 is characterized in that this static guide hole is along offering on this first surface or this second surface.
10. the safeguard structure of electronic installation static discharge as claimed in claim 8 is characterized in that this static guide hole is adjacent to offering on this first surface or this second surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510106415 CN1937878A (en) | 2005-09-23 | 2005-09-23 | Static discharge protection management structure for electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510106415 CN1937878A (en) | 2005-09-23 | 2005-09-23 | Static discharge protection management structure for electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1937878A true CN1937878A (en) | 2007-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510106415 Pending CN1937878A (en) | 2005-09-23 | 2005-09-23 | Static discharge protection management structure for electronic device |
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| CN (1) | CN1937878A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101646297B (en) * | 2008-08-05 | 2011-11-09 | 英业达股份有限公司 | Electronic device with electrostatic guide structure |
| CN101925271B (en) * | 2009-06-16 | 2012-01-11 | 元镫金属股份有限公司 | Metal processing piece with high bonding force |
| CN103873610A (en) * | 2012-12-13 | 2014-06-18 | 上海共联通信信息发展有限公司 | Public telephone terminal device with long service life |
| CN105407666A (en) * | 2015-12-14 | 2016-03-16 | 重庆瑞阳科技股份有限公司 | Electronic component assembly structure |
| CN113596208A (en) * | 2020-07-31 | 2021-11-02 | 三星电子株式会社 | Electronic device including conductive member |
| CN114449075A (en) * | 2021-07-23 | 2022-05-06 | 荣耀终端有限公司 | Camera dress trim cover and electronic equipment |
-
2005
- 2005-09-23 CN CN 200510106415 patent/CN1937878A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101646297B (en) * | 2008-08-05 | 2011-11-09 | 英业达股份有限公司 | Electronic device with electrostatic guide structure |
| CN101925271B (en) * | 2009-06-16 | 2012-01-11 | 元镫金属股份有限公司 | Metal processing piece with high bonding force |
| CN103873610A (en) * | 2012-12-13 | 2014-06-18 | 上海共联通信信息发展有限公司 | Public telephone terminal device with long service life |
| CN105407666A (en) * | 2015-12-14 | 2016-03-16 | 重庆瑞阳科技股份有限公司 | Electronic component assembly structure |
| CN113596208A (en) * | 2020-07-31 | 2021-11-02 | 三星电子株式会社 | Electronic device including conductive member |
| US11903149B2 (en) | 2020-07-31 | 2024-02-13 | Samsung Electronics Co., Ltd. | Electronic device including conductive member |
| CN114449075A (en) * | 2021-07-23 | 2022-05-06 | 荣耀终端有限公司 | Camera dress trim cover and electronic equipment |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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