CN2517160Y - Safety unit of main distribution frame - Google Patents
Safety unit of main distribution frame Download PDFInfo
- Publication number
- CN2517160Y CN2517160Y CN 01277133 CN01277133U CN2517160Y CN 2517160 Y CN2517160 Y CN 2517160Y CN 01277133 CN01277133 CN 01277133 CN 01277133 U CN01277133 U CN 01277133U CN 2517160 Y CN2517160 Y CN 2517160Y
- Authority
- CN
- China
- Prior art keywords
- framework
- switch
- protection
- alarm
- wiring board
- 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 - Fee Related
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a secure unit of coil holder, an arrangement disposed on the coil holder for protecting the phone switch, comprising an inner and outer trim, grounding and warning trim, connected to the framework, which is fixed on the circuit board with indicators, and the protection element manifold block CLP which is also connected on the circuit board and separately connected with the two ends of the sampling resistance between the inner and outer trim, the grounding and warning trim, and a protection switch which is connected with the outer trim, an invalidation switch which is connected between the grounding and warning trim, connecting with the base and disposed in the housing. The invalidation switch comprises a ground lug, disposed on the framework and clinging to spring, which is connected with the hot frit of outside plastic through a closely-linked grounding plate, the warning plate, disposed on the circuit board, and the manifold block CLP, closely-link with the hot frit. The utility model has the advantages that the protection and invalidation switch can be repaired and used repeatedly, the protection function is more perfect in order to improve the reliability and sensitivity of the guard, and the using is safer.
Description
Technical field
The utility model relates to a kind of post and telecommunications; be installed in the device that is used to protect telephone exchange safety on the main frame; the Security Unit of main frame carries out overvoltage, overcurrent first class of protection with it to telephone exchange user plate, protection attendant's the personal safety and the normal operation of switch.
Background technology
Though the Security Unit of existing main frame is various in style, function is different; but majority still adopts gas, semiconductor discharge tube to make over-voltage protection element, heat coil or semistor PTC and makes overflow protecting element, and overcurrent, each alarm device of overvoltage protection are arranged.
It is a kind of with the Security Unit of integrated CLP as the main frame of overcurrent, over-voltage protection element that number of patent application 01253385.8 " Security Unit of main frame " just provides.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of Security Unit of main frame is provided, makes its protective value more perfect, use safety and reliability,, satisfy requirements of different users for market provides many kinds, and highly sensitive, protection speed is fast.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the Security Unit of main frame is by in one pair; outer stitch; grounding leg; the alarm pin is connected on the framework; be fixed on the wiring board of tape light; also be connected with protection component integrated package CLP on the wiring board; respectively with interior; the two ends of the sample resistance that connects between outer stitch connect and grounding leg; the alarm pin connects; and the stitch place is connected with protection switch outside; grounding leg; be connected with the thermal failure switch between the alarm signal end; constitute whole the composition in the housing with being installed in after base is connected; and described thermal failure switch is by ground strip is installed on the described framework; and be close to spring; spring is connected with the hot melt piece of outsourcing plastic sheet by the ground connection moving plate of being close to again; also be connected with fixing alarm sheet in the circuit board, described hot melt piece is close to integrated package CLP.
Compared with prior art; advantage of the present utility model is: protection beginning and thermal failure switch in the Security Unit of the main frame of this structure all can be repaired; reuse; and the lower hot melt piece of heat fusion joint has been adopted in the thermal failure beginning; the structure of being close to core protection component integrated package CLP, needing only one has big electric current to pass through, and makes integrated package CLP heating; the hot melt piece will melt, and thermal failure switch just action reaches the purpose that long-term alarm is exported.The thermal failure switch of this kind structure; be installed in and make its more compact structure, volume little in the framework; can be supporting with various Security Units dissimilar, the main frame that has core protection component integrated package CLP structure, use, the protection reliability and the sensitivity that have improved it are used safer.
Description of drawings
Fig. 1. structural representation of the present utility model (cutaway view);
Fig. 2. the A-A view of Fig. 1;
Fig. 3. structural representation of the present utility model;
Fig. 4. the utility model overvoltage, overcurrent protection line map.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Base (13) has 6 jacks on the bottom surface, and protruding button (19) is arranged in the middle of the two side.
The integral body that has the protection switch frame of stairstepping cavity and the holder formation that the lower end has 6 open slots on framework (12) is served as reasons.
The top edge welding of wiring board (3) front is indicator light (2) light-emitting diode fixedly, lower end welding fixed card is connected on a pair of outer stitch (14) and the alarm pin (15) on the framework (12), and lower end, back side welding fixed card is connected on a pair of interior stitch (18) and grounding leg (16) on the framework (12).Fixedly integrated package CLP (5) is also welded in positive upper end, and its 1 leading foot is connected (alarm signal end) with the positive pole of indicator light (2) light-emitting diode, and 2,5 leading foots connect a pair of interior stitch (18) a ', b ' and a pair of sample resistance (4) R
1, R
2An end, 3,4 leading foots that bull welds together and two protection switches (7) k
1, k
2An end and the in addition end of sample resistance connect, protection beginning end in addition is connected with a pair of outer stitch (14) a, b.
Heat portective switch k3 is by in the cavity of framework (12) upper end; put into ground strip (11) successively; and be close to spring (10); spring (10) is close to ground connection moving plate (9) and the outer hot melt piece (6) that is surrounded by plastic sheet (17) again; the alarm sheet (8) that framework (12) cavity opening part is weldingly fixed on the wiring board (3) in addition constitutes, and hot melt piece (6) one end faces on it are close to integrated package CLP (5) and are installed.
The wiring board (3) that assembles is inserted base (13) respectively by a pair of inside and outside stitch (18) on it, (14) and grounding leg (16), alarm pin (15) to be gone up in the corresponding jack, put shell (1) and utilize two protruding buttons (19) and shell (1) on the base (13) to connect into integral body, the Security Unit of main frame is assembled into.
When circuit generation overcurrent or overvoltage; overcurrent, overvoltage stitch (14) outside a pair of enters; arrive integrated package CLP (5) inside; go up detected overcurrent, overpressure situation according to sample resistance (4); or door action make outside line over the ground, to alarm pin closure, thereby realize discharging overvoltage, overcurrent over the ground, reach the purpose of overvoltage, overcurrent protection; while outputting alarm signal, indicator light (2) is bright.
When if long-time high voltage or big electric current take place in circuit, integrated package CLP (5) is except that having above-mentioned action, produce a large amount of heats simultaneously, make hot melt piece (6) fusing of being close to it,, upwards promote ground connection moving plate (9) by the effect of spring (10), it is contacted with alarm sheet (8) on the wiring board (3), and, make connected indicator light (2) bright by alarm sheet (8), send alarm signal.Then, make protection switch (7) action, reach the purpose of outside line open circuit, thereby eliminated because the hidden danger that high voltage or big electric current are encroached on personal and equipment has improved the reliability of protection by a large amount of heats of generation.
Claims (2)
1. the Security Unit of a main frame; be connected on the framework (12) by a pair of inside and outside stitch (18), (14), grounding leg (16), alarm pin (15); be fixed on the wiring board (3) of tape light (2); also be connected with protection component integrated package CLP (5) on the wiring board (3); respectively with inside and outside stitch (18), (14) between the two ends of the sample resistance (4) that is connected connect and grounding leg (16), alarm pin (15) connect; and stitch (14) locates to be connected with protection switch (7) outside, is connected with the thermal failure K switch between grounding leg (16), alarm signal end
3, be installed in housing (1) after base (13) is connected in constitute whole the composition, it is characterized in that described thermal failure K switch
3By ground strip (11) is installed on the described framework (12), and be close to spring (10), spring (10) is connected with the hot melt piece (6) of outsourcing plastic sheet (17) by the ground connection moving plate of being close to (9) again, also be connected with the alarm sheet (8) that is fixed on the wiring board (3), described hot melt piece (6) is close to integrated package CLP (5).
2. Security Unit according to claim 1 is characterized in that framework (12) has the protection switch frame of stairstepping cavity by the upper end and holder that the lower end has 6 open slots constitutes heat portective switch K
3By in the cavity of framework (12) upper end, put into the alarm sheet (8) that ground strip (11), spring (10), ground connection moving plate (9) and outer hot melt piece (6), framework (12) the cavity opening part that is surrounded by plastic sheet (17) be weldingly fixed on the wiring board (3) in addition successively and constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01277133 CN2517160Y (en) | 2001-12-26 | 2001-12-26 | Safety unit of main distribution frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01277133 CN2517160Y (en) | 2001-12-26 | 2001-12-26 | Safety unit of main distribution frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2517160Y true CN2517160Y (en) | 2002-10-16 |
Family
ID=33681004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01277133 Expired - Fee Related CN2517160Y (en) | 2001-12-26 | 2001-12-26 | Safety unit of main distribution frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2517160Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494134A (en) * | 2008-01-21 | 2009-07-29 | 内桥艾斯泰克股份有限公司 | Protective element |
| CN105449471A (en) * | 2016-01-05 | 2016-03-30 | 征泰电子有限公司 | Socket capable of powering off automatically under overheat condition |
-
2001
- 2001-12-26 CN CN 01277133 patent/CN2517160Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101494134A (en) * | 2008-01-21 | 2009-07-29 | 内桥艾斯泰克股份有限公司 | Protective element |
| CN101494134B (en) * | 2008-01-21 | 2013-07-03 | 内桥艾斯泰克股份有限公司 | Protective element |
| CN105449471A (en) * | 2016-01-05 | 2016-03-30 | 征泰电子有限公司 | Socket capable of powering off automatically under overheat condition |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |