CN101064178A - Electrostatic protection device for CD ROM - Google Patents
Electrostatic protection device for CD ROM Download PDFInfo
- Publication number
- CN101064178A CN101064178A CN 200610074894 CN200610074894A CN101064178A CN 101064178 A CN101064178 A CN 101064178A CN 200610074894 CN200610074894 CN 200610074894 CN 200610074894 A CN200610074894 A CN 200610074894A CN 101064178 A CN101064178 A CN 101064178A
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- CN
- China
- Prior art keywords
- rom drive
- circuit
- protecting device
- naked
- pallet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Elimination Of Static Electricity (AREA)
Abstract
This invention relates to one driver electrostatic protection device, which is of one print circuit board set between driver tray and panel and in front end of tray with key, display lamp hole and emergency exit hole, wherein the device comprises one trigger switch circuit for key to start driver exit disc, light diode circuit and at least one bar circuit formed on the circuit board earth bare circuit set with trigger switch, light diode and emergency disc exit hole; the tray back is covered with one metal bottom board and bare circuit through flexible wires to form earth main circuit board to exclude electrostatic.
Description
Technical field
The relevant a kind of electrostatic protection apparatus of the present invention, especially about in the CD-ROM drive in order to lead static electrification, to prevent the electrostatic protection apparatus of electrostatic breakdown precision component except that operator institute.
Background technology
CD-ROM drive in the household electrical appliances information products needs very accurate electronic component, with the high density data on the discs in the read-write high speed rotating.So in CD-ROM drive service firing process, accurate electronic component very easily is subjected to the influence and the destruction of user institute static electrification, needs electrostatic defending badly.
As shown in Figure 1, traditional CD-ROM drive 1 mainly comprises the shell 2 and a disk tray 3 of a metal material.Shell 2 has a hollow region can allow pallet 3 pass in and out.And the motor of rotary CD sheet, the read head that reads and writes data and relevant control electronic component are configured on the pallet 3.The front end of pallet 3 is established a thin printed circuit board (PCB) 4, establish a CD-ROM drive operating switch 5 on it, the place ahead of pallet 3 is then in abutting connection with a panel 6, panel 6 is established a button 7 in the position of relative switch 5, can pass perforation 8 touch switch 5 of panel 6, one sheet metal 9 is installed in the back side of panel 6, has slotted eye 10 on it around this perforation 8, and between sheet metal 9 and panel 6, partly be provided with sheet rubber 11, with the elasticity of reinforcement metal sheet 9, when making pallet 3 enter CD-ROM drive 1, compress sheet metal 9 with sheet rubber 11, allow sheet metal 9 contact with shell 2.
When the button 7 of pushing CD-ROM drive 1 as the user carries out placing, the user with static, finger 12 by button, with with static via perforation 8 slits of 7 of panel 6 and buttons, be discharged to sheet metal 9, by sheet metal 9 static is led shell 11 through contact, get rid of static by the ground connection of shell 11 again.To avoid the precise electronic part of electrostatic current on pallet 12, reach the purpose of electrostatic protection.Yet traditional CD-ROM drive need additionally be provided with sheet metal 9 and lead removal apparatus with sheet rubber 11 static such as grade, not only part increases assembling more and causes the manufacturing cost height man-hour, and should the tradition CD-ROM drive only at pallet when entering shell, just led and destaticed, and shift out from shell at pallet, make electric rotating machine, the read head of disc and contain the printed circuit board (PCB) of controlling electronic component when directly exposing to the open air outside, static can't be led on the contrary and be removed, very easily cause the precise electronic part impaired, reduce the quality of CD-ROM drive.Therefore, the electrostatic defending of traditional CD-ROM drive, it is to be solved to still have problem to have.
Summary of the invention
The object of the present invention is to provide a kind of CD-ROM drive electrostatic protecting device, form electrostatic protection apparatus, directly lead destaticing, with simplified construction and reduction manufacturing cost by the original touch switch printed circuit board (PCB) of CD-ROM drive.
Another purpose of the present invention is to provide a kind of CD-ROM drive electrostatic protecting device, when pallet enters or shift out housing, all can effectively lead destaticing, to strengthen the CD-ROM drive electrostatic protecting function.
In order to reach the purpose of aforementioned invention, CD-ROM drive electrostatic protecting device of the present invention is the circuit of a printed circuit board (PCB), be located between CD ROM support tray and the panel, and be sticked at the pallet front end face, panel is provided with button, shows lamp hole and urgent placing hole, electrostatic protection apparatus comprises that a touch switch circuit starts CD-ROM drive placing, circuit of LED and at least one naked circuit for button, naked circuit is formed on the exposed circuit of ground connection on the printed circuit board (PCB), and is located near this touch switch, light emitting diode and the urgent placing hole.Tray back covers a metal bottom and contacts with naked circuit, connects main circuit board via soft arranging wire and forms ground connection, to get rid of static.
Description of drawings
Fig. 1 is the sectional view of traditional CD-ROM drive electrostatic protecting device.
Fig. 2 is for using the back side parts explosion of electrostatic protection apparatus CD-ROM drive of the present invention.
Fig. 3 shifts out the side diagrammatic cross-section of housing for pallet of the present invention.
Fig. 4 is that CD-ROM drive is assembled back partial side diagrammatic cross-section along A-A among Fig. 2.
Fig. 5 is the front elevation of electrostatic protection apparatus of the present invention.
Fig. 6 is the front elevation of another embodiment of the present invention electrostatic protection apparatus.
The primary clustering symbol description
20 CD-ROM drives
21 housings
22 lower houses
23 electrostatic protection apparatus
24 pallets
25 base plates
26 panels
27 buttons
28 show lamp hole
29 urgent placing holes
30 flanges
31 touch switch
32 light emitting diodes
33 naked circuit
34 guide rails
35 upper shells
36 main circuit boards
37 discs
38 spindle motors
39 read heads
40 secondary circuit boards
41 soft arranging wires
The electrostatic protection apparatus of 43 another embodiment
44 touch switch
45 light emitting diodes
46 naked circuit
47 strengthen naked circuit
Embodiment
Relevant the present invention is for reaching above-mentioned purpose, and technological means that is adopted and effect thereof are now lifted preferred embodiment, and conjunction with figs. is illustrated as follows.
Please refer to Fig. 2, the back side parts explosion for the CD-ROM drive 20 that is provided with electrostatic protection apparatus of the present invention wherein removes the lower house 22 (please join Fig. 3) in CD-ROM drive 20 housings 21, shows electrostatic protection apparatus 23 of the present invention with clear.This CD-ROM drive 20 comprises housing 21, electrostatic protection apparatus 23, pallet 24, base plate 25, panel 26 and button 27 etc.The main utilization is sticked at the electrostatic protection apparatus 23 of pallet 24 front end faces, touches button 27 on the panel 26 the user, with static when passing button 27 slots such as grade, guiding static removes via base plate 25 ground connection the leading at pallet 24 back sides.
Wherein, pallet 24 front ends connect a panel 26; panel 26 is provided with button 27, shows lamp hole 28 and urgent placing hole 29 etc.; the back side of pallet 24 covers a base plate 25; this base plate 25 is a metal material; in order to prevent the electronic component in EMI electromagnetic interference (EMI) such as (Electromagnetic Interference) and the protection pallet 24, the front end of base plate 25 is provided with the flange 30 of several bendings.The relative wherein position of a flange 30, the front end face of pallet 24 electrostatic protection apparatus 23 that has been sticked, electrostatic protection apparatus 23 is the circuit of a printed circuit board (PCB), be provided with touch switch 31, light emitting diodes such as LED 32 and naked circuit 33 (shown in dotted line), touch switch 31 is located at the relative position of button 27, touch the on-off circuit of CD-ROM drive placing during for pressing keys 27, light emitting diode 32 is located at the position of relative demonstration lamp hole 28, in order to show the operating conditions of CD-ROM drive, 33 in naked circuit is that CD-ROM drive is when shaping touch switch 31 and light emitting diode 32 printed circuit board (PCB)s, do not influencing under the normal circuit, button 27 at relative panel 26, show that lamp hole 28 and urgent placing hole 29 etc. have near the position of hole, form exposed circuit with vacant or increase part circuit, with guiding electrostatic grounding.
In addition, housing 21 both sides are provided with guide rail 34, slide into support pallet 24 and skid off housing 21.As shown in Figure 3, for pallet 24 shifts out the side diagrammatic cross-section of housing 21, housing 21 constitutes a hollow form by upper shell 35 and lower house 22, and the rear end is provided with a main circuit board 36, and front end then has an opening and slides into for pallet 24 and skid off housing 21.Pallet 24 is provided with the spindle motor 38 of rotating disc sheet 37, radially slides read head 39 to read and write data along discs 37, and the secondary circuit board 40 etc. that is provided with electronic component such as control IC.36 of the secondary circuit board 40 of pallet 24 and main circuit boards, utilize a soft arranging wire 41 to form and electrically connect, except that power supply source, control signal and data transmission, soft arranging wire 41 still has a circuit to connect base plate 25, via main circuit board 36 or direct conducting housing 21 ground connection.
As shown in Figure 4, assemble back partial side diagrammatic cross-section for CD-ROM drive among Fig. 2 along A-A.Electrostatic protection apparatus 23 of the present invention, link panel 26 at pallet 24 front ends, panel 26 is provided with hole slot 42 and wears for button 27, the be sticked front end face of pallet 24 of electrostatic protection apparatus 23, and between pallet 24 and panel 26, at button 27 relative positions, electrostatic protection apparatus 23 is provided with touch switch 31.The back side of pallet 24 covers base plate 25, the flange 30 of base plate 25 front ends bending, and button is butted on the front-end edge of pallet 24, and pushes down electrostatic protection apparatus 23.Electrostatic protection apparatus 23 is provided with naked circuit 33 at the end near base plate 25, and naked circuit 33 can contact with the flange 30 of base plate 25 bendings and form and conducting.Near button 27, demonstration lamp hole 28 and urgent placing hole 29 on the panel 26, make the static that passes described slot by naked circuit 33, be directed to base plate 25 by naked circuit 33 nearby, get rid of via main circuit board 36 or direct conducting housing 21 ground connection through soft arranging wire 41 again.
Therefore, as shown in Figure 5, the present invention just can be by the printed circuit board (PCB) of the original supply touch switch 31 of CD-ROM drive with light emitting diode 32, in suitable vacant space, and position near slots such as panel button, demonstration lamp hole and urgent placing holes, form naked circuit 33, constitute electrostatic protection apparatus 23, and utilize the original member of CD-ROM drive such as base plate, soft arranging wire and main circuit board etc. to form grounding circuit, destatic to lead, not only can delete cost of parts such as sheet metal, and can reduce the part of assembling with simplified construction, quicken built-up time, reduce the whole manufacturing cost of CD-ROM drive.Movable type by soft arranging wire connects simultaneously, and when pallet shifted out housing, the present invention also can effectively lead and destatic, to strengthen the CD-ROM drive electrostatic protecting function.
As shown in Figure 6, be the electrostatic protection apparatus 43 of another embodiment of the present invention.The electrostatic protection apparatus 43 of present embodiment is for supplying with the printed circuit board (PCB) of CD-ROM drive touch switch 44 and light emitting diode 45, and the structure of establishing naked circuit 46, basically roughly the same with preceding embodiment electrostatic protection apparatus 23, main difference is that present embodiment is outside former printed circuit board (PCB), increase again and strengthen naked circuit 47, make naked circuit 46 strengthen naked circuit 47 around urgent placing hole 29 by U-shaped, get rid of effect to strengthen static.Strengthening naked circuit 47 simultaneously also can form comparatively and stretch out, when making pallet 24 move into CD-ROM drive, directly contact housing 21, reach static and lead the purpose of removing, and needn't get rid of static via base plate 25 ground connection, can reach the purpose that simplified construction of the present invention reduces cost of parts equally.
The above person, only in order to convenient explanation the preferred embodiments of the present invention, scope of the present invention is not limited to described preferred embodiment, and is all according to any change that the present invention did, and in not breaking away under the spirit of the present invention, all belongs to scope of the present invention.
Claims (13)
1. a CD-ROM drive electrostatic protecting device is the circuit of a printed circuit board (PCB), comprising:
One touch switch is for the on-off circuit that starts the CD-ROM drive placing; And
At least one naked circuit is formed on the exposed circuit of ground connection on the printed circuit board (PCB), and is located near this touch switch.
2. CD-ROM drive electrostatic protecting device according to claim 1, wherein this CD-ROM drive further comprises a pallet, and front end connects a panel, and electrostatic protection apparatus is between pallet and panel.
3. CD-ROM drive electrostatic protecting device according to claim 2, wherein this electrostatic protection apparatus is located on the pallet front end face.
4. CD-ROM drive electrostatic protecting device according to claim 2, wherein this panel is provided with a button in relative touch switch position.
5. CD-ROM drive electrostatic protecting device according to claim 2, wherein this electrostatic protection apparatus further comprises the circuit of the printed circuit board (PCB) of light emitting diode, naked circuit extends near the light emitting diode.
6. CD-ROM drive electrostatic protecting device according to claim 5, wherein this panel is provided with a demonstration lamp hole in relative light emitting diode position.
7. CD-ROM drive electrostatic protecting device according to claim 2, wherein this panel is provided with a urgent placing hole, near the urgent placing hole naked circuit of this electrostatic protection apparatus extends to.
8. CD-ROM drive electrostatic protecting device according to claim 7, wherein this naked circuit is to strengthen naked circuit around urgent placing hole.
9. CD-ROM drive electrostatic protecting device according to claim 2, wherein this tray back covers a metal bottom and contacts with naked circuit.
10. CD-ROM drive electrostatic protecting device according to claim 9, wherein the front end of this base plate flange that is provided with at least one bending contacts with naked circuit.
11. CD-ROM drive electrostatic protecting device according to claim 9, wherein this CD-ROM drive further comprises a housing, establishes a main circuit board in the housing, and base plate connects main circuit board via soft arranging wire and forms ground connection.
12. CD-ROM drive electrostatic protecting device according to claim 11, wherein this base plate is connected to housing via soft arranging wire and forms ground connection.
13. CD-ROM drive electrostatic protecting device according to claim 2, wherein this CD-ROM drive further comprises a housing, allows pallet pass in and out housing, and naked circuit is strengthened naked circuit to stretch out, and when making pallet move into CD-ROM drive, directly contacts housing and forms ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610074894 CN101064178A (en) | 2006-04-25 | 2006-04-25 | Electrostatic protection device for CD ROM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610074894 CN101064178A (en) | 2006-04-25 | 2006-04-25 | Electrostatic protection device for CD ROM |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101064178A true CN101064178A (en) | 2007-10-31 |
Family
ID=38965119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610074894 Pending CN101064178A (en) | 2006-04-25 | 2006-04-25 | Electrostatic protection device for CD ROM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101064178A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430893B (en) * | 2007-11-07 | 2010-12-01 | 广明光电股份有限公司 | Transmission mechanism of CD player |
-
2006
- 2006-04-25 CN CN 200610074894 patent/CN101064178A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430893B (en) * | 2007-11-07 | 2010-12-01 | 广明光电股份有限公司 | Transmission mechanism of CD player |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20071031 |