CN200941554Y - Full non-locking security unit - Google Patents
Full non-locking security unit Download PDFInfo
- Publication number
- CN200941554Y CN200941554Y CN 200620063513 CN200620063513U CN200941554Y CN 200941554 Y CN200941554 Y CN 200941554Y CN 200620063513 CN200620063513 CN 200620063513 CN 200620063513 U CN200620063513 U CN 200620063513U CN 200941554 Y CN200941554 Y CN 200941554Y
- Authority
- CN
- China
- Prior art keywords
- reed
- circuit board
- resetter
- thermistor
- security unit
- 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
Links
Images
Landscapes
- Fire-Detection Mechanisms (AREA)
Abstract
A fully self-returning protection unit, comprising a incoming reed arranged in the enclosure and connected to consumer line end, an outlet reed connected to the exchanger. The incoming reed and the outlet reed are arranged on an electrical board. A self-returning component, a discharging tube, a thermistor and an alarming reed are arranged on the electrical board. The consumer line end is connected to the self-returning component through the incoming reed and the electrical board, then connected to the discharging tube, the common joint of the thermistor, finally connected to the outlet reed; Two self-returning components at left and right and the discharging tube are separately arranged on the electrical board in the front and in the rear; Two discharging tubes are hold on one end of thermal distortion material in bar shape; The end of the thermal distortion material is fixed on the electrical board, another end is suspended; The thermal distortion material is connected to the ground; Two self-returning components is hold on left and right side of the thermal distortion material through left and right two insulation conductive material. The utility model has the advantage of flexible operation, high safety degree, long life time and brand application prospect.
Description
Technical field
The utility model relates to a kind of Security Unit, particularly a kind of full self-resetting type Security Unit of communications equipment room switch one-level over-voltage and over-current protection.
Background technology
The existing communication machine room requires protector: when power line touches that load is 40 Ω and 10 Ω in the test, the outside line input of protector should open a way or current limliting to 50mA, and in 3 minutes, send lasting visible alarm signal.
The failure protection device of common protector generally adopts low-melting alloy as the inefficacy material, utilizes the low-melting alloy melted by heat to make the actuating mechanism open circuit.But this failure protection device is destructive and irreversible, generally needs could use through maintain and replace.
Also have and adopt the self-resetting type protector of thermal deformation metal material as the inefficacy material, thermal deformation metal material wherein adopts thrermostatic bimetal-plate or memorial alloy or temperature-sensitive magnet more, they utilize thrermostatic bimetal-plate temperature distortion or temperature-sensitive magnet reduced by thermomagnetion and form the action of threading off, allow d/d actuating mechanism back down the inlet wire shell fragment, no longer contact, thereby make outside line input open circuit with the inlet wire stator.The self-resetting type protector of this structure is owing to the operate time of mechanical switch is uncertain, make loop current sport the open circuit cut-off state, in the loop in the moment that disconnects arcing appears inevitably between switch contact, thereby inevitably damage switch contact, and then cause the contact resistance of getting an electric shock indirectly to increase, be easy to generate the communication line fault.
Also have minority producer to add two preposition organic PTCs as analog switch, but result of use is bad: strike sparks when being subjected to heavy current impact, and when thunderbolt to be also on fire easily, to the great hidden danger of the security presence of distributing frame at the front end of discharge tube.
The utility model content
Technical problem to be solved in the utility model be to provide a kind of simple and reasonable, cost of manufacture is low, the full self-resetting type Security Unit of flexible operation, safe coefficient height, long service life, to overcome weak point of the prior art.
The technical scheme in the invention for solving the above technical problem is: a kind of full self-resetting type Security Unit, comprise and be arranged on the inlet wire reed that joins with user's line end in the housing, with the outlet reed that joins with the switch end, inlet wire reed and outlet reed are arranged on the circuit board, its architectural feature is that circuit board is provided with from resetter, discharge tube, thermistor and alarm reed, user's line end passes through the inlet wire reed, connects behind resetter by circuit board, points of common connection with discharge tube, thermistor links to each other again, is connected to the outlet reed at last; About being respectively arranged with before and after on the circuit board two from resetter and discharge tube; Two discharge tubes are clamped in heat deformable material one end of strip; This end of heat deformable material is fixed on the circuit board, and its other end is outstanding to be established; Heat deformable material is connected with ground; Two from resetter by about two insulation heat-transfer matcrials be clamped in the left and right sides at heat deformable material middle part.
Above-mentioned heat deformable material is the combination of thrermostatic bimetal-plate or memory metal or thrermostatic bimetal-plate, memory metal and other metal.
Above-mentioned is low resistance thermistor or temperature control device from resetter.
Above-mentioned discharge tube, from resetter and thermistor respectively by the reed clamping and be fixed on the circuit board.
Above-mentioned reed is a laminated structure, and that its middle part is provided with is outwards outstanding, be with flexible compressing piece.
An above-mentioned inlet wire reed and an end of outlet reed are installed on the circuit board, and its other end is outstanding to be established, and corresponding inlet wire reed and outlet reed are respectively arranged with perforate on housing and the circuit board.
Above-mentioned inlet wire reed, be electrically connected with circuit board respectively from resetter, discharge tube, thermistor, alarm reed and outlet reed, wherein the inlet wire reed, from resetter, discharge tube, thermistor and outlet reed symmetric arrangement.
Of the present utility model from resetter through repeatedly the experiment, the thunderbolt and the heavy current impact process in can effectively avoid electric elements on fire, guaranteed the safety of Security Unit and communications equipment room.
The utility model can repeatedly recover after the emergency protection automatically, and Security Unit can be reused, and has improved the useful life of Security Unit greatly, has improved the economy of Security Unit.
The utility model adopts noncontacting switch, and the arcing of having avoided the mechanical switch action to cause has realized the full-automatic recovery of Security Unit, and is more more stable and reliable than existing manual recovery Security Unit performance.
The utility model is simple and reasonable, cost of manufacture is low, flexible operation, safe coefficient height, long service life, application prospect are wide.
Description of drawings
Fig. 1 is the perspective view of the utility model one embodiment.
Fig. 2 is the structural representation after Fig. 2 removes housing.
Fig. 3 is the assembly structure schematic diagram of Fig. 2.
Fig. 4 is the circuit theory diagrams of the utility model one embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1-Fig. 4, this full self-resetting type Security Unit comprises the circuit board 3 that is arranged in the housing 11, outlet reed 6 and heat deformable material 7 that circuit board 3 is provided with the inlet wire reed 1 that joins with user's line end, joins from resetter 2, discharge tube 4, thermistor 5, alarm reed 9, with the switch end; Wherein discharge tube 4, be two respectively from resetter 2, insulation heat-transfer matcrial 8 and thermistor 5, be symmetrical arranged, see Fig. 2-Fig. 4; One end of inlet wire reed 1 and outlet reed 6 is installed on the circuit board 3, and its other end is outstanding to be established, and corresponding inlet wire reed 1 and outlet reed 6 are respectively arranged with perforate on housing 11 and the circuit board 3.Discharge tube 4, from resetter 2 and thermistor 5 respectively by reed 12 clampings and be fixed on the circuit board 3; Reed 12 is a laminated structure, and that its middle part is provided with is outwards outstanding, be with flexible compressing piece, sees Fig. 4.Two discharge tubes 4 are clamped in heat deformable material 7 one ends of strip; This end of heat deformable material 7 is fixed on the circuit board 3, and its other end is outstanding to be established.Heat deformable material is connected with ground.About resetter 2 is two, two from resetter 2 by about two insulation heat-transfer matcrials 8 be clamped in the left and right sides at heat deformable material 7 middle parts.During action, heat deformable material 7 these end ends join with alarm reed 9; Thermistor 5 be about two, divide to be located at heat deformable material 7 both sides.Inlet wire reed 1, discharge tube 4, thermistor 5, outlet reed 6, alarm reed 9, light-emitting diode 10 are electrically connected with circuit board 3 respectively; Alarm reed 9 links to each other with light-emitting diode 10 in the Security Unit.Whole device is installed in the housing 11.Be serially connected with from resetter 2 and thermistor 5 between inlet wire reed 1 and the outlet reed 6.User's line end a, b pass through inlet wire reed 1, are connected to behind resetter 2 by circuit board 3, and the points of common connection with discharge tube 4, thermistor 5 links to each other again, connect outlet reed 6 at last to switch end a ', b ', see Fig. 1.Among the figure, SA is a discharge tube, and E is a ground connection, and S is an alarm, and PCT1～PCT4 is a thermistor.
Wherein, heat deformable material 7 is the combination of thrermostatic bimetal-plate or memory metal or thrermostatic bimetal-plate, memory metal and other metal.From resetter 2 is low resistance thermistor or temperature control device.
When it was in normal operating conditions, user's line end a, b were connected to from resetter 2 through circuit board 3 by inlet wire reed 1, are connected to thermistor 5 through circuit board 3 again, to outlet reed 6, and the communication line operate as normal.
When overcurrent entered, thermistor 5 was in high-impedance state, with whole talking path blocking-up, with the protection switch device.When overvoltage enters, thermistor 5 is in high-impedance state, discharge tube 4 discharges over the ground, the heat transferred that continuous discharge produces is to heat deformable material 7, connect alarm reed 9 by the physical deformation of heat deformable material 7, so, the lumination of light emitting diode in the Security Unit, the alarm loop is connected, and realizes the normal alarm function of protector.When the discharge tube discharging current is big, owing to the heat that the electric current of flowing through produces moves, be in high-impedance state from resetter 2, whole loop is equivalent to open-circuit condition.Dependence is delivered to heat deformable material 7 from the heat that resetter 2 high-impedance states produce by insulating material 8, keeps the continuous output of alarm signal.
When user's line end is reduced to just often, thermistor is connected the switch end, and discharge tube stops discharge, heating, and heat deformable material 7 is reinstatement voluntarily at short notice, and circuit automatically restores to normal operating conditions.
Claims (8)
1. full self-resetting type Security Unit, comprise and be arranged on the inlet wire reed (1) that joins with user's line end in the housing (11), with the outlet reed (6) that joins with the switch end, inlet wire reed and outlet reed are arranged on the circuit board (3), it is characterized in that described circuit board is provided with from resetter (2), discharge tube (4), thermistor (5) and alarm reed (9), user's line end is through the inlet wire reed, connect behind resetter by circuit board (3), again with discharge tube (4), the points of common connection of thermistor (5) links to each other, and is connected to outlet reed (6) at last; About being respectively arranged with before and after circuit board (3) is gone up two from resetter (2) and discharge tube (4); Two discharge tubes (4) are clamped in heat deformable material (7) one ends of strip; This end of heat deformable material is fixed on the circuit board, and its other end is outstanding to be established; Heat deformable material is connected with ground; Two about resetter (2) passes through two insulation heat-transfer matcrials (8) be clamped in the left and right sides at heat deformable material (7) middle part.
2. full self-resetting type Security Unit according to claim 1 is characterized in that the combination of described heat deformable material (7) for thrermostatic bimetal-plate or memory metal or thrermostatic bimetal-plate, memory metal and other metal.
3. full self-resetting type Security Unit according to claim 1 is characterized in that described is low resistance thermistor or temperature control device from resetter (2).
4. full self-resetting type Security Unit according to claim 1, it is characterized in that described discharge tube (4), from resetter (2) and thermistor (5) respectively by reed (12) clamping and be fixed on the circuit board (3).
5. full self-resetting type Security Unit according to claim 4 is characterized in that described reed (12) for laminated structure, and that its middle part is provided with is outwards outstanding, be with flexible compressing piece.
6. full self-resetting type Security Unit according to claim 1, an end that it is characterized in that described inlet wire reed (1) and outlet reed (6) is installed on the circuit board (3), its other end is outstanding to be established, and housing (11) and circuit board (3) are gone up corresponding inlet wire reed and the outlet reed is respectively arranged with perforate.
7. full self-resetting type Security Unit according to claim 1, it is characterized in that described inlet wire reed (1), be electrically connected with circuit board (3) respectively from resetter (2), discharge tube (4), thermistor (5), alarm reed (9) and outlet reed (6), wherein the inlet wire reed, from resetter, discharge tube, thermistor and outlet reed symmetric arrangement.
8. full self-resetting type Security Unit according to claim 1 is characterized in that described circuit board (3) is provided with light-emitting diode (10), and light-emitting diode is electrically connected with alarm reed (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620063513 CN200941554Y (en) | 2006-08-24 | 2006-08-24 | Full non-locking security unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620063513 CN200941554Y (en) | 2006-08-24 | 2006-08-24 | Full non-locking security unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200941554Y true CN200941554Y (en) | 2007-08-29 |
Family
ID=38747729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620063513 Expired - Fee Related CN200941554Y (en) | 2006-08-24 | 2006-08-24 | Full non-locking security unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200941554Y (en) |
-
2006
- 2006-08-24 CN CN 200620063513 patent/CN200941554Y/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130200986A1 (en) | Varistor fuse element | |
| CN104813432B (en) | Surge protection device having short-circuit current protection function | |
| CN204089185U (en) | Surge protection device | |
| CN201302965Y (en) | Hand-operated restoring open-circuit protector | |
| CN206099331U (en) | Circuit board is with big through -flow power surge protection device | |
| CN211826423U (en) | Piezoresistor failure alarm device | |
| CN201515206U (en) | Surge protector | |
| CN101847858B (en) | Lightning-protection fuse with reliable alarm and overvoltage surge protection device thereof | |
| CN200941554Y (en) | Full non-locking security unit | |
| CN111613493A (en) | High-voltage current-limiting fusing protection device | |
| CN201266524Y (en) | Surge protector | |
| CN106655139B (en) | Surge Protector | |
| CN201681780U (en) | Lightening-proof fuse with reliable alarming and surge overvoltage protection device thereof | |
| CN2783497Y (en) | Releasing and alarm device for pressure sensitive assembly of lighting protector | |
| CN209642317U (en) | A kind of pcb board load formula surge protector | |
| CN201035101Y (en) | Device sending out alarming indication when grounding system appears unconventionality | |
| CN201638767U (en) | Surge protection device | |
| CN202550215U (en) | Supply socket with the function of protection | |
| CN203166500U (en) | Surge protection device applied to improved circuit board | |
| CN215267635U (en) | Switch type lightning protection module with remote signaling and tripping functions | |
| CN220510775U (en) | Surge protector with backup protection function | |
| CN221551808U (en) | Breaking device and lightning protection device | |
| CN2777818Y (en) | Self-restoring safety unit | |
| CN201075675Y (en) | Full electronic break type repeatedly-usable TBU safety unit | |
| CN201075678Y (en) | Full electronic break type disposable TBU safety unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070829 Termination date: 20130824 |