CN101330793A - Electrostatic safeguard structure - Google Patents
Electrostatic safeguard structure Download PDFInfo
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- CN101330793A CN101330793A CNA2007101120693A CN200710112069A CN101330793A CN 101330793 A CN101330793 A CN 101330793A CN A2007101120693 A CNA2007101120693 A CN A2007101120693A CN 200710112069 A CN200710112069 A CN 200710112069A CN 101330793 A CN101330793 A CN 101330793A
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- circuit board
- protection structure
- electrostatic protection
- elasticity
- contact
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- Elimination Of Static Electricity (AREA)
Abstract
A static protective structure is arranged between a circuit board and a conductor; a compression elastic part, a combination part and a connection part is formed by a conductive wire rod. A first contact surface is formed on the combination part to be welded to the circuit board; a second contact surface is formed on the connection part and in continuous contact with the conductor; therefore, the circuit board is electrically connected with the conductor, and the circuit board is statically protected. Furthermore, the impact-resistant static protective structure with low development cost is provided.
Description
Technical field
The present invention relates to the electrostatic protection structure of electronic installation, particularly a kind of easy manufacturing assembling and the cheap electrostatic protection structure of development cost.
Background technology
In order to meet user's demand, many electronic products are all towards light and handy and powerful target development, but along with the electronic product volume constantly dwindles, the space of also just representing electronic product inside to provide is more and more limited.In this case, printed circuit board (PCB) in the electronic product can only be dealt with to dwindle area, and the integrated circuit on the printed circuit board (PCB) also must promote data processing speed with higher frequency, and all factors all can make the electromagnetic interference phenomenon (EMI) that produces because of galvanomagnetic effect on the printed circuit board (PCB) continue to increase the weight of.On the other hand, because the circuit arrangement on the printed circuit board (PCB) is accurate more, make printed circuit board surface and air rub and the also usually generation of situation of generation static mutually.Electromagnetic interference and electrostatic phenomenon all may have influence on the running of circuit on the circuit board, cause system's shakiness of electronic product or work as machine.In addition, if electromagnetic interference and electric charge that electrostatic phenomenon produced continue accumulation on circuit board, then electricity is hindered the user or is damaged circuit on the circuit board accidentally.
Therefore, on the printed circuit board (PCB) of electronic product, all can be provided with at present the related mechanism of electrostatic defending (ESD), will derive because of the electric charge of electromagnetic interference or electrostatic effect generation on the printed circuit board (PCB) at any time, make the circuit on the printed circuit board (PCB) maintain normal operation, and the situation of avoiding getting an electric shock accidentally take place.As shown in Figure 1, be a kind of common grounding elastic part that is used for electrostatic defending 10, it is formed by metal clips bending, and has a weld part 11 and a contact site 12.Weld part 11 is used to be welded to the printed circuit board (PCB) of electronic product, but contact site 12 then is connected with a conductive component (as the metal chassis of electronic product), but make printed circuit board (PCB) and conductive component reach electric connection, and then guide out the electric charge that produces on the printed circuit board (PCB), to reach the effect of electrostatic defending.Yet, the structure of this grounding elastic part 10 and can't bear sudden surge power, for example when electronic product falls ground accidentally, its metal chassis can give grounding elastic part 10 powerful moment impact, make grounding elastic part 10 produce permanent deformation even fracture damage, and the ability of forfeiture electrostatic defending.
The novel patent M295836 of TaiWan, China and for example, it has disclosed a kind of anti-deformation grounding elastic part that is used for electronic product, to solve the not impact-resistant shortcoming of aforementioned grounding elastic part 10.But grounding elastic part in the M295836 case and aforesaid grounding elastic part 10 all are repeatedly to be bent by sheet metal to form, with regard to its processing and manufacturing aspect, not only formality is quite complicated, and but these two kinds of shell fragments all need be at the spacing again die sinking design of printed circuit board (PCB) with conductive component, the time and the human cost of development are heightened, add strict for spatial configuration of electronic product now, in the electrostatic defending design, often have suitable difficulty.More than some all makes grounding elastic part and aforesaid grounding elastic part 10 in the M295836 case can't meet at present the electronic product development requirement of replacement fast.
Summary of the invention
In view of grounding elastic part manufacture complexity and the too high problem of development cost in the prior art, the object of the present invention is to provide a kind of electrostatic protection structure, to solve the existing for a long time problem of known grounding elastic part.
For solving aforesaid problem, the invention provides a kind of electrostatic protection structure, include an elasticity of compression portion, a joint portion and a junction.This kind electrostatic protection structure is by an electric wire coiling and molding, and is arranged between a circuit board and an electric conductor, and wherein electric wire can be a metal wire rod.The joint portion extends a side of elasticity of compression portion, forms one first contact-making surface and reeled in the plane by above-mentioned electric wire, and is soldered to circuit board with its first contact-making surface and reaches electric connection.Connecting portion system extends the opposite side of elasticity of compression portion, and by above-mentioned electric wire reel in the plane form one second contact-making surface and joint portion back to, and be electrically connected to electric conductor with its second contact-making surface.Be pasted with the diaphragm that a macromolecular material is made on second contact-making surface of connecting portion,, use for the board absorption of carrying out surperficial adhesion process to form an absorption plane in electrostatic protection structure one side.Elasticity of compression portion is reeled by aforementioned electric wire to form, and provides second contact-making surface of elastic force pushing and pressing connecting portion to contact electric conductor normally in order to be compressed, and makes connecting portion continue to keep electrically connecting with electric conductor.Use electrically connecting circuit board and electric conductor, and carry out electrostatic defending for circuit board.
Effect of the present invention is, electrostatic protection structure is by electric wire (metal wire rod) coiling and molding, make it can finish the size and the profile of various needs by a spring production machine platform, and electrostatic protection structure can cooperate the installing space to carry out elastic telescopic because of having elasticity of compression portion, not only save development cost and time effectively, also can bear unexpected external impacts and keep the effect of electrostatic defending.
Below in execution mode, be described in detail detailed features of the present invention and advantage, its content is enough to make those skilled in the art to understand technology contents of the present invention and implements according to this, and according to the disclosed content of this specification, claims and accompanying drawing, those skilled in the art can understand purpose and the advantage that the present invention is correlated with easily.
Above about content of the present invention explanation and the explanation of following execution mode in order to demonstration with explain principle of the present invention, and explain for claims of the present invention provide further.
Description of drawings
Fig. 1 is the schematic perspective view of known grounding elastic part.
Fig. 2 is the schematic perspective view of elasticity electrostatic protection structure and diaphragm in the first embodiment of the invention.
Fig. 3 is the schematic perspective view of elasticity electrostatic protection structure in the first embodiment of the invention.
Fig. 4 is elasticity electrostatic protection structure, circuit board and the preceding floor map of electric conductor assembling among the present invention.
Fig. 5 is the floor map after elasticity electrostatic protection structure, circuit board and electric conductor are assembled among the present invention.
Fig. 6 is the schematic perspective view of elasticity electrostatic protection structure and diaphragm in the second embodiment of the invention.
Fig. 7 is the schematic perspective view of elasticity electrostatic protection structure in the second embodiment of the invention.
Fig. 8 is the schematic perspective view of elasticity electrostatic protection structure in the third embodiment of the invention.
Wherein, description of reference numerals is as follows:
10 grounding elastic parts, 11 weld parts, 12 contact sites
20 electrostatic protection structures, 21 joint portions, 211 first contact-making surfaces
22 connecting portions, 221 second contact-making surfaces, 23 elasticity of compression portions
24 diaphragms, 241 absorption planes, 30 circuit boards
31 electric conductor L1 raw footage L2 reduction lengths
Embodiment
For making purpose of the present invention, structure, feature and function thereof there are further understanding, now cooperate embodiment to be described in detail as follows.
See also Fig. 2, Fig. 3 is shown in Figure 4, is first embodiment of electrostatic protection structure of the present invention, electrostatic protection structure 20 of the present invention includes a joint portion 21, a junction 22 and an elasticity of compression portion 23 among the figure.This kind electrostatic protection structure 20 in order to be arranged at 31 of a circuit board 30 and electric conductors, makes circuit board 30 and electric conductor 31 reach electric connection by an electric wire coiling and molding, and wherein aforementioned electric wire can be but is not limited to a metal wire rod.
Connecting portion 22 extends the opposite side of elasticity of compression portion 23, and is wound into circular tabularly in the plane by above-mentioned electric wire, and forms one second contact-making surface 221, wherein first contact-making surface 211 of second contact-making surface 221 and joint portion 21 back to.Connecting portion 22 is electrically connected to electric conductor 31 with its second contact-making surface 221, for example utilizes second contact-making surface 221 directly to attach contact electric conductor 31.Again, because of the general object of all drawing the desire welding of board of carrying out surface mount technology in the mode of vacuum suction, so be pasted with a diaphragm 24 of making by macromolecular material (for example KAPTON MYLAR material) on the connecting portion 22, to form an absorption plane 241 in connecting portion 22 1 sides.Absorption plane 241 can provide board adsorption electrostatic safeguard structure 20 usefulness of carrying out surface mount technology, and after joint portion 21 is soldered to circuit board 30 and finishes soon diaphragm 24 remove.
Elasticity of compression portion 23 is wound into a three-dimensional spiral helicine compression spring by a spring production machine platform with above-mentioned electric wire, makes elasticity of compression portion 23 have elasticity and can be compressed.Elasticity of compression portion 23 is connected in joint portion 21 and connecting portion 22 between the two, and wherein joint portion 21, connecting portion 22 and elasticity of compression portion 23 are one-body molded by aforesaid electric wire.So, when joint portion 21 is soldered to circuit board 30, also representing connecting portion 22 also to reach electric connection, making unnecessary electric charge on the circuit board 30 can see through joint portion 21 and successfully be directed on the connecting portion 22 with elasticity of compression portion 23 with circuit board 30.
Please consult Fig. 4 and shown in Figure 5 again, when populated circuit board 30, electric conductor 31 and electrostatic protection structure 20, elasticity of compression portion 23 can be extruded and shorten the pitch of its electric wire, and promptly the length of elasticity electrostatic protection structure 20 is compressed into reduction length L2 (as shown in Figure 5) by raw footage L1 (as shown in Figure 4).So, elasticity of compression portion 23 can cooperate the circuit board 30 and the actual pitch of electric conductor 31 to carry out trace adjustment, and can be by the elastic force of elasticity of compression portion 23 distortion generations, second contact-making surface 221 of pushing and pressing connecting portion 22 keeps in touch it normally with electric conductor 31, electrically connect circuit board 30 and electric conductor 31 thus.Therefore, the unnecessary electric charge on the circuit board 30 can see through electrostatic protection structure 20 and successfully be directed on the electric conductor 31, to carry out electrostatic defending for circuit board 30.In addition, when electric conductor 31 was subjected to external impacts accidentally, elasticity of compression portion 23 also can absorb the energy that impacts by compression in good time, and kept the relation of electric conductor 31 and 30 electric connections of circuit board later in external impacts.
And for example Figure 6 and Figure 7 is second embodiment of electrostatic protection structure of the present invention, and its embodiment is identical with the first embodiment of the present invention, and both difference parts only are the external form that joint portion 21 and connecting portion 23 are reeled.Joint portion 21 all is wound into rectangular plate shape by electric wire in the plane with connecting portion 23 among second embodiment, can certainly be other as triangle or irregular kenel, or joint portion 21 is wound into different profiles with connecting portion 23.But, the kenel of joint portion 21 and connecting portion 23 is not as limit, get final product so long as can form the plane that contacts with circuit board 30 and electric conductor 31 (as shown in Figure 4) in electrostatic protection structure 20 both sides, the effect of electrostatic defending is provided with the environment that cooperates the inner actual installation of electronic building brick.
And for example shown in Figure 8, the 3rd embodiment for electrostatic protection structure of the present invention, its embodiment is identical with the first embodiment of the present invention, and both difference parts are only in elasticity of compression portion 23 kenel linearly, and its two ends are connected to joint portion 21 and connecting portion 22, make electrostatic protection structure 20 itself still can provide the effect of compression and electrostatic defending.
Though the present invention adopts aforesaid embodiment to describe, so it is not in order to limit the present invention.Without departing from the spirit and scope of the present invention, change of doing and retouching all belong to scope of patent protection of the present invention.Please refer to appending claims about the protection range that the present invention defined.
Claims (6)
1. an electrostatic protection structure is arranged between a circuit board and an electric conductor, and it includes:
One elasticity of compression portion is formed by an electric wire, and an elastic force is provided in order to be compressed;
One joint portion extends this elasticity of compression portion one side, and forms one first contact-making surface by this electric wire coiling, and this joint portion is soldered to this circuit board with this first contact-making surface; And
A junction extends this elasticity of compression portion opposite side, and forms one second contact-making surface by this electric wire, and this connecting portion contacts this electric conductor with this second contact-making surface normally in order to promoted by this elastic force, to electrically connect this circuit board and this electric conductor.
2. electrostatic protection structure as claimed in claim 1, wherein this elasticity of compression portion is a compression spring of being reeled and being formed by this electric wire.
3. electrostatic protection structure as claimed in claim 1, wherein this connecting portion is reeled by this electric wire and is formed this second contact-making surface.
4. electrostatic protection structure as claimed in claim 1 wherein also includes a diaphragm, and this diaphragm is attached on second contact-making surface of this connecting portion, uses for absorption to form an absorption plane.
5. electrostatic protection structure as claimed in claim 4, wherein this diaphragm is that macromolecular material is made.
6. electrostatic protection structure as claimed in claim 1, wherein electric wire is a metal wire rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101120693A CN101330793A (en) | 2007-06-22 | 2007-06-22 | Electrostatic safeguard structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101120693A CN101330793A (en) | 2007-06-22 | 2007-06-22 | Electrostatic safeguard structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101330793A true CN101330793A (en) | 2008-12-24 |
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ID=40206316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101120693A Pending CN101330793A (en) | 2007-06-22 | 2007-06-22 | Electrostatic safeguard structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101330793A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102398556A (en) * | 2010-09-17 | 2012-04-04 | 北汽福田汽车股份有限公司 | Electrostatic guide device of metallic oil tank |
| CN102123572B (en) * | 2010-01-07 | 2013-07-24 | 创见资讯股份有限公司 | Electronic device and electromagnetic interference and electrostatic discharge protection module thereof |
-
2007
- 2007-06-22 CN CNA2007101120693A patent/CN101330793A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102123572B (en) * | 2010-01-07 | 2013-07-24 | 创见资讯股份有限公司 | Electronic device and electromagnetic interference and electrostatic discharge protection module thereof |
| CN102398556A (en) * | 2010-09-17 | 2012-04-04 | 北汽福田汽车股份有限公司 | Electrostatic guide device of metallic oil tank |
| CN102398556B (en) * | 2010-09-17 | 2013-09-11 | 北汽福田汽车股份有限公司 | Electrostatic guide device of metallic oil tank |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081224 |