CN2779814Y - A guide rail having electrostatic protection function - Google Patents
A guide rail having electrostatic protection function Download PDFInfo
- Publication number
- CN2779814Y CN2779814Y CN 200420085119 CN200420085119U CN2779814Y CN 2779814 Y CN2779814 Y CN 2779814Y CN 200420085119 CN200420085119 CN 200420085119 CN 200420085119 U CN200420085119 U CN 200420085119U CN 2779814 Y CN2779814 Y CN 2779814Y
- Authority
- CN
- China
- Prior art keywords
- guide rail
- protection function
- pcb board
- groove
- rail body
- 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.)
- Expired - Lifetime
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- Mounting Of Printed Circuit Boards And The Like (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The utility model relates to a guide rail with electrostatic protection function, which is fixed on a metal transverse beam of a machine case of a communication device. The utility model comprises a guide rail body and a metal electrostatic ring, wherein the guide rail body is provided with a groove for a PCB plate clamp to insert in, the electrostatic ring is provided with a metal elastic sheet which extends outwards along the groove of the guide rail, covers the bottom surface of the guide rail and is electrically connected with the transverse beam. The device with the structure causes that electrostatic charges generated by inserting and pulling the PCB plate clamp share the same earthing path. The utility model has the advantages of simple structure and stable performance.
Description
Technical field
The utility model proposes a kind of guide rail, refer in particular to a kind of being fixed in the communication apparatus cabinet, plant, and form the guide rail of good grounding path for PCB (printed circuit board (PCB)) integrated circuit board of specific function with antistatic protection function.
Background technology
Along with development of Communication Technique, operator is more and more higher to the requirement of the functions that communication equipment possessed such as base station.In order to expand product function in time, and then satisfy the needs of operator, equipment vendor generally will reserve the guide rail that has slot of some when its product export, so that later on as required to realize the expansion of product function by the corresponding pcb board card of planting.
The guide rail of comparatively popular in the market plant pcb board card has three kinds: (1) metal guide rail, though this kind guide rail has good electrical conductivity, and can guarantee and the pcb board card between good ground connection effect, but because of metal guide rail cost height, weight big, can't reduce product cost effectively, in addition, because of density metal big, cause the weight of product big, be unfavorable for the transportation and the installation of product.(2) plastic guide rail, though this kind guide rail has low, the lightweight characteristics of cost, but because of it does not have conductivity, can't in pcb board card plug process, form effective grounding path, thereby the electrostatic charge of gathering the pcb board card can't be plugged the time is led away timely, cause the pcb board card to produce high voltage because of assembling too much electrostatic charge easily, and then puncture is arranged on the electronic component on the pcb board and damage whole pcb board card.
In order to intercept the advantage of above-mentioned two kinds of guide rails, abandon these two kinds of guide rails deficiency separately simultaneously, current the third comparatively popular Guide Rail Design method is: rail body adopts plastics to make, two ends are provided with the metallic conduction ring that forms grounding path with the pcb board card, like this on the basis that reduces product cost effectively, the electrostatic charge that accumulates on the pcb board card in the plug process is in time led away, avoided product too much to damage integrated circuit board because of build-up of static charges.As the guide rail of 3684.204,3684.205 models announced in the 315th page of the 29 phase catalogue of issue German RITTAL (prestige figure) company in April, 1998, it promptly adopts this thinking to design.The two ends of this guide rail respectively are provided with 3 square holes and 1 circular hole, and wherein square hole is used for preventing that pcb board from mispluging, and circular hole is then as the metal guide finger jack on this guide rail drawing-aid device.Then be divided into two parts in order to form the metallic conduction ring that grounding path uses with the pcb board card, one of them metal clips is installed on the slot of guide rail, and its bottom contacts with metal beam in the communication equipment cabinet; The another one metal clips then is installed in the circular hole of drawing-aid device, the one end also exposes guide rail metal beam outer and in the cabinet and contacts, when inserting the pcb board card, since the ground connection coating on the pcb board card be arranged on guide rail on slot in metal clips contact, thereby can realize the metal beam release that the electrostatic charge on the pcb board card is provided with successively on the ground connection coating on the pcb board card, metal clips on the guide rail slot and cabinet; And when extracting the pcb board card, the electrostatic charge that installation personnel carries then discharges by the metal clips and the crossbeam at drawing-aid device, guide rail circular hole place successively, and then realizes omnibearing electrostatic grounding purpose.
Overcome the deficiency that adopts above-mentioned two kinds of Guide Rail Design though this kind is provided with, its complex structure, part are more, thereby cause the mould smelting of making this guide rail corresponding complexity of structure of signing an undertaking, and assembling procedure increases, and can't reduce cost effectively.
Summary of the invention
The purpose of this utility model is to provide a kind of guide rail with antistatic protection function, and it is simple in structure, becoming can effectively lower and stable performance, reliable.
For realizing the utility model purpose, the utility model has adopted following technical scheme.
A kind of guide rail with antistatic protection function, be fixed on the metal beam of communicator cabinet, comprise plastic guide rail main body and metal electrostatic ring, wherein the plastic guide rail main body is provided with the groove of planting for the pcb board card, and described electrostatic ring stretches out along guide rail groove and is provided with the metal clips that coats guide rail end surface and bottom surface and be electrically conducted with crossbeam.
Described electrostatic ring is arranged near the two ends of plastic guide rail main body, is formed by the metal integrated punching, and is provided with fixed part with the guide rail fixing from the both sides of aforementioned metal shell fragment.
Positioning pin column and the elasticity seam that is provided with the affixed usefulness of cabinet crossbeam extended at two ends, described rail body bottom surface.
In addition, according to demand, also scribble the color that prevents pcb board card wrong plug position at the two ends of described rail body.
Also be provided with protuberance curved in groove on the described rail body side.
Because electrostatic ring of the present utility model adopts the single type setting, and extend along guide rail groove by electrostatic ring and to be provided with the metal clips that coats guide rail end surface and bottom surface and be electrically conducted with crossbeam.Thereby the electrostatic charge shared grounding path that makes pcb board be stuck in to gather in the plug process, thereby simple in structure, dependable performance is stable.
Description of drawings
Fig. 1 is a perspective exploded view of the present utility model.
Fig. 2 is the utility model electrostatic ring structural representation.
Fig. 3 is a three-dimensional combination schematic diagram of the present utility model.
Fig. 4 is that the utility model is installed in the position view in the communication equipment cabinet.
Fig. 5 is that the utility model is installed in the position view on the crossbeam.
Fig. 6 be the utility model with a crossbeam interlock wherein after solid combination schematic diagram.
1. rail body among the figure, 2. groove, 3. convex closure, 4. elasticity seam, 5. boss, 6. fixing socket, 7. electrostatic ring, 8. fixed part, 9. metal clips, 10. guide rail, 11. cabinets, 12. back rest, 13. central sill, 14. front-axle beams, 15. static electrification ring guide rails, 16. flanges, 17. dowel holes.
Embodiment
In order to understand technical solutions of the utility model better, be illustrated below in conjunction with relevant indicators.Please refer to shown in Figure 1, the guide rail of the static electrification safeguard function that the utility model discloses mainly is made up of two parts: the insulating guide rail main body (1) for the plant of pcb board card that (1) is made by high flame retardant ABS material, (2) are installed near the conduction electrostatic ring (7) that plays the electrostatic defending effect of rail body (1) two lengthwise end.
Insulating guide rail main body (1) roughly is longitudinal, be formed with the elongated slot (2) that surrounds jointly by bottom surface and two sides, wherein a side is provided with several convex closures (3) curved and that have a favorable elasticity in groove (2) and (is set to 2 in the present embodiment, also can on two sides, be provided with simultaneously as required), smooth and easy when plugging for pcb board card (not shown), that avoids again simultaneously that excesssive gap because of pcb board card and conduit causes rocks easily.In addition, respectively be provided with the fixedly socket (6) of a pair of upper and lower perforation near close two ends, bottom surface, pegging graft to fix for electrostatic ring (7) wherein (is detailed later).And in this two fixing the same side of socket (6), respectively extend laterally a boss (5) be set, with the structural strength that increases guide rail (10) and and cabinet (11) on crossbeam between fixing effect.And in groove (2) bottom surface near the fixing outside of socket (6), extend vertically downward respectively an alignment pin (not shown) and elasticity seam (4) are set, wherein alignment pin and elasticity seam (4) keep at a certain distance away, borrow alignment pin and elasticity seam (4) flange (16) to be set and dowel hole (17) cooperates, the utility model guide rail (10) firmly can be installed in cabinet (11) casing interior (specifically shown in Fig. 4,5,6) with crossbeam both sides on the cabinet (11).In order to prevent the wrong plug of pcb board card, also can indicate different colors by two ends and realize at guide rail (10).
Please refer to again shown in Figure 2, the conduction electrostatic ring (7) make by the sheet metal integrated punching, be installed in the set fixedly socket (6) in aforementioned rail body (1) two ends.It is provided with is close to the electroconductive elastic sheet that guide rail (10) end face, bottom surface are extended and coated in guide rail (10) groove (2) bottom surface, be symmetrically arranged with respectively from these metallic conduction shell fragment both sides and fixing socket (6) fixing and the fixed part (8) that electrically contacts with crossbeam on the cabinet (11), wherein the equal general curved of each fixed part (8) takes the shape of the letter U, top in this fixed part (8), also be provided with some fairleads along conduit, so that in pcb board card plug process to guiding, its finally be installed on the guide rail (10) the position as shown in Figure 3.In addition, in the utility model, have good electrical conductivity and elastic performance, also need this electrostatic ring (7) is carried out further surface treatment in order to make electrostatic ring (7).
In the lump with reference to shown in Fig. 4,5,6, for the utility model is installed in the interior structural representation of communication equipment cabinet (11).When mounted, earlier static electrification ring guide rail (15) is installed in as required between the front-axle beam (14), central sill (13) or the back rest (12) that are made of metal in the cabinet (11), the central sill (13), and electrostatic ring (7) is contacted with each crossbeam, to form the conductive path of ground connection.And make dowel hole (17), flange (16) interlock that is provided with on alignment pin set on guide rail (10) bottom surface, two ends, elasticity seam (4) and the crossbeam, to realize the secure fixation between guide rail (10) and crossbeam.
In the time of in the pcb board card inserts this real new recess (2); its electrostatic charge of gathering in the plug process goes up the electrostatic ring (7) and the crossbeam that are provided with by the ground connection coating on the pcb board, guide rail (10) and discharges; and when extracting the pcb board card, the electrostatic charge that installation personnel carries then discharges by electrostatic ring (7) and crossbeam on the ground of the protection on drawing-aid device, pcb board coating, the guide rail (10) successively.
Owing to by technical solutions of the utility model, realized shared same grounding path in the pcb board card plug process, thereby simplified the structure and the technology of static electrification ring guide rail (15) greatly, and made the ground connection performance reliable more, stable.
Claims (5)
1. guide rail with antistatic protection function, be fixed on the metal beam of cabinet, comprise rail body and conduction electrostatic ring, wherein rail body is provided with the groove of planting for the pcb board card, and it is characterized in that: described electrostatic ring stretches out to be provided with along guide rail groove and coats to the guide rail bottom surface and the electroconductive elastic sheet that is electrically conducted with crossbeam.
2. the guide rail of tool antistatic protection function as claimed in claim 1, it is characterized in that: described electrostatic ring is arranged near the two lengthwise ends of rail body, and form by the sheet metal integrated punching, in addition, also be provided with and the fixing fixed part of rail body in the both sides of described electroconductive elastic sheet.
3. the guide rail of tool antistatic protection function as claimed in claim 2 is characterized in that: above the fixed part of described electrostatic ring, also be provided with the fairlead that the pcb board card is guided along groove.
4. the guide rail of tool antistatic protection function as claimed in claim 1 is characterized in that: two ends, described rail body bottom surface are respectively arranged with the cabinet crossbeam stablizes positioning pin column and the elasticity seam that fixing is used.
5. the guide rail of tool antistatic protection function as claimed in claim 4 is characterized in that: also be provided with protuberance curved in groove on the side of rail body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420085119 CN2779814Y (en) | 2004-08-10 | 2004-08-10 | A guide rail having electrostatic protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420085119 CN2779814Y (en) | 2004-08-10 | 2004-08-10 | A guide rail having electrostatic protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779814Y true CN2779814Y (en) | 2006-05-10 |
Family
ID=36753899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420085119 Expired - Lifetime CN2779814Y (en) | 2004-08-10 | 2004-08-10 | A guide rail having electrostatic protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2779814Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101237753B (en) * | 2007-01-30 | 2010-08-04 | 华硕电脑股份有限公司 | Sliding structure and its applied portable electronic device |
| CN101202096B (en) * | 2006-12-11 | 2011-01-19 | 广明光电股份有限公司 | Device for protecting CD ROM static electricity |
| CN111295029A (en) * | 2020-03-27 | 2020-06-16 | 广东智源机器人科技有限公司 | Destaticizing device and meal delivery system |
-
2004
- 2004-08-10 CN CN 200420085119 patent/CN2779814Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101202096B (en) * | 2006-12-11 | 2011-01-19 | 广明光电股份有限公司 | Device for protecting CD ROM static electricity |
| CN101237753B (en) * | 2007-01-30 | 2010-08-04 | 华硕电脑股份有限公司 | Sliding structure and its applied portable electronic device |
| CN111295029A (en) * | 2020-03-27 | 2020-06-16 | 广东智源机器人科技有限公司 | Destaticizing device and meal delivery system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Effective date of registration: 20070510 Pledge (preservation): Pledge |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20100413 Granted publication date: 20060510 Pledgee: National Development Bank Pledgor: Datang Mobile Communications Equipment Co|Shanghai Datang Mobile Communications Equipment Co|Telecom Research Institute of science and technology Registration number: 2007110000354 |
|
| ASS | Succession or assignment of patent right |
Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20110406 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100191 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110406 Address after: 100191 Haidian District, Xueyuan Road, No. 40, Patentee after: Inst of Telecommunication Science and Technolgoy Address before: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: Datang Mobile Communication Equipment Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140810 Granted publication date: 20060510 |