CN2146802Y - Multi-functional fuse box - Google Patents
Multi-functional fuse box Download PDFInfo
- Publication number
- CN2146802Y CN2146802Y CN 93206391 CN93206391U CN2146802Y CN 2146802 Y CN2146802 Y CN 2146802Y CN 93206391 CN93206391 CN 93206391 CN 93206391 U CN93206391 U CN 93206391U CN 2146802 Y CN2146802 Y CN 2146802Y
- Authority
- CN
- China
- Prior art keywords
- fuse
- plug
- box
- utility
- model
- 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
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model provides a multi-function fuse box, which is provided with two forms of a plug-in structure and a safe structure. The plug-in structure is composed of a socket and a plug. A fuse tube and an over voltage protection element are installed on the plug, and when the power supply and the power use are not normal, (over current and over voltage), the fuse box can timely fuse the fuse to cut off the circuit and protect an electric appliance. The safe structure is that a fuse tube and a voltage protection element are connected with a knife fuse, and the safe structure is used for the rebuilding of the present knife fuse. The utility model has the function of over current and over voltage protection, the replacement of the fuse is convenient, and the utility model is used for the power use fuse of AC/DC users, such as residential buildings, offices, etc.
Description
The utility model has related to the security personnel's device in a kind of electrical field, specifically a kind of multi-functional safety box.Be applicable to the security insurance of residential building electricity consumption, also can be used for enterprise, the power safety of unit.
Number of patent application 93200382.6 is released and a kind ofly can be carried out overvoltage, overcurrent protection to indoor all electrical appliances, and over-voltage protection element can reusable multi-functional safety box, and is rational in infrastructure, easy to use.But over-voltage protection element is made up of a resistance and a bidirectional triode thyristor in this safety box.Bidirectional triode thyristor by with conducting be that size by the electric current of the resistance of flowing through decides, in resistance branch, exist electric current all the time, influence the useful life of bidirectional triode thyristor, and cause misoperation easily.Unfavorable to protective circuit.
The purpose of this utility model is to release and a kind ofly can reuses in circuit, do not produce misoperation, does not produce the multi-functional safety box of power consumption under normal power supply voltage, so that multi-functional safety box is able to higher generalization and use.
Design of the present utility model is to utilize the switching characteristic of the voltage-sensitive characteristic of piezo-resistance and bidirectional triode thyristor that circuit formation short circuit is cut off the electricity supply to realize overvoltage protection.
The utility model can be made inserter structure, also can make a multifunctional protecting box and be fitted on the present guillotine type safety box.Inserter structure is mainly used in the update of guillotine type safety box, is made up of plug, socket two parts, and four jacks of two rows are arranged on the socket, and two jacks of last row connect power line, and two jacks of following row connect load line.For preventing with power end and load end wrong, the pitch-row of two supply hubs and two load jacks does not wait, plug and present attaching plug appearance similar, there are four not equidistant pins of two rows in the plug front, the top is two power end pins, bottom is two load end pins, connect an electric current protective tube between the load pin of each power pin of plug inside and correspondence, two anodes of bidirectional triode thyristor are attempted by between two load pins, and the gate pole other end of piezo-resistance one termination bidirectional triode thyristor and an end of diode join.The anode of another termination bidirectional triode thyristor of diode.Just often piezo-resistance is not by there being gate current when supply voltage, and bidirectional triode thyristor ends, the power supply circuits operate as normal.When supply voltage raises when reaching the voltage protection value for some reason, piezo-resistance conducting trigger current is by gate pole, the bidirectional triode thyristor conducting, and short circuit, short circuit current blowout current protective tube is cut off the electricity supply, and has protected electrical appliance.Diode of the present utility model is provided with for the misoperation that the pulse in the power supply and surge current cause in order to prevent high-sensitive bidirectional triode thyristor.
The utility model has prolonged the useful life of over-voltage protection element owing to adopted piezo-resistance and bidirectional triode thyristor as over-voltage protection element, and is safe and reliable, all can use for a long time under AC and DC, high and low pressure voltage.
Plug of the present utility model, socket can be used bakelite; insulating material manufacturings such as plastics; security personnel's box structure is mainly used in to be transformed existing guillotine type safety box; specific practice is that insurance of the electric current of the Lower Half of original guillotine type safety box and protective cover are removed; contain above-mentioned overcurrent with one, security personnel's box of over-voltage protection element replaces.Security personnel's box can be made a square box, electric current protective tube, bidirectional triode thyristor, piezo-resistance, diode correctly is fastened in the box, and security personnel's box is up and down respectively drawn two lead-in wires in two ends, and the correspondence respectively of will go between during use is attached on four terminal screws of former guillotine type safety box and gets final product.
Embodiment of the present utility model is provided by following accompanying drawing:
Embodiment 1:
Embodiment 1 is used for replacing fully the guillotine type safety box.
Fig. 1 is circuit theory diagrams of the present utility model
Fig. 2 is a structural representation of the present utility model
Fig. 2 a is the plug interior structure schematic diagram
Fig. 2 b is the plug side view
Fig. 2 c is a socket internal structure schematic diagram
Fig. 2 d is the outline drawing of socket
As Fig. 1, two safety boxs (1), be serially connected between power supply and the load wiring end through plug (6), (7) socket (5), (8), two anodes of bidirectional triode thyristor (4) are attempted by between two load ends of plug inside, one of piezo-resistance (2) terminates on the gate pole G of bidirectional triode thyristor (4), another terminating diode (3), the anode A 2 of another termination bidirectional triode thyristor (4) of diode (3).Plug insertion socket, circuit is connected, and supply voltage is just often; piezo-resistance (2) is ended; do not have trigger current, bidirectional triode thyristor (4) ends, the circuit operate as normal; when supply voltage raises when reaching overvoltage protection value of the present utility model for some reason; piezo-resistance (2) conducting, bidirectional triode thyristor (4) conducting that is triggered forms short circuit; short circuit current blowout current protective tube (1) is cut off the electricity supply, and has protected electrical appliance.
Embodiment 2:
Fig. 3 is a structural representation of the present utility model
Fig. 3 a is the utility model internal structure schematic diagram
Fig. 3 b is the utility model outline drawing
As figure (1) is the electric current protective tube.(2) be piezo-resistance.(3) be diode, (4) are bidirectional triode thyristor.
Claims (1)
- A kind of plug-in type safety box and guillotine type security personnel box that contains overcurrent protection; it is characterized in that in the plug of this plug-in type safety box piezo-resistance (2) being housed also; diode (3); the over-voltage protection element that bidirectional triode thyristor (4) is formed; guillotine type security personnel box is by protective tube (1); piezo-resistance (2), diode (3) bidirectional triode thyristor (4) are assembled in security personnel's box and constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93206391 CN2146802Y (en) | 1993-03-22 | 1993-03-22 | Multi-functional fuse box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93206391 CN2146802Y (en) | 1993-03-22 | 1993-03-22 | Multi-functional fuse box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2146802Y true CN2146802Y (en) | 1993-11-17 |
Family
ID=33789412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93206391 Expired - Fee Related CN2146802Y (en) | 1993-03-22 | 1993-03-22 | Multi-functional fuse box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2146802Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008067686A1 (en) * | 2006-12-04 | 2008-06-12 | Zte Corporation | Protection circuit for single-board dc power source interface |
| CN105591378A (en) * | 2015-09-21 | 2016-05-18 | 中石化石油工程技术服务有限公司 | Seismic data acquisition system power supply polarity and overload protector |
-
1993
- 1993-03-22 CN CN 93206391 patent/CN2146802Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008067686A1 (en) * | 2006-12-04 | 2008-06-12 | Zte Corporation | Protection circuit for single-board dc power source interface |
| CN105591378A (en) * | 2015-09-21 | 2016-05-18 | 中石化石油工程技术服务有限公司 | Seismic data acquisition system power supply polarity and overload protector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2146802Y (en) | Multi-functional fuse box | |
| CN202917751U (en) | Intelligent power supply distribution unit | |
| CN2143016Y (en) | Multi-function fuse box | |
| CN2166534Y (en) | Multi-plug receptacle with overcurrent overvoltage protector | |
| CN2469581Y (en) | Multifunction autodistinguishing shockproof safety jack | |
| CN213340255U (en) | Power module with lightning and surge protection function | |
| CN2044375U (en) | Multi-functional safety case | |
| CN204905838U (en) | Simple and easy overvoltage protection trigger device | |
| CN114156702B (en) | Zero line broken wire protection type power strip | |
| CN2063712U (en) | Over-voltage and -current protective device for electric appliances | |
| CN217282194U (en) | Digital intelligent leakage circuit breaker capable of improving safety performance | |
| CN2505912Y (en) | Electron master control computer plug socket | |
| CN2502426Y (en) | Socket with over-voltage protecting function | |
| CN2183062Y (en) | Arrangement for protection of power supply of wire TV set | |
| CN2164125Y (en) | Safety plug | |
| CN220857068U (en) | Electrified quick replacement device for electric energy meter | |
| CN202949096U (en) | Power socket with overvoltage protection function | |
| CN2131219Y (en) | Household lightning arresting socket | |
| CN2305855Y (en) | Electronic hanging net for killing insects | |
| CN2559151Y (en) | Electric appliance protection eathing monitoring device | |
| CN210468769U (en) | Intelligent circuit breaker | |
| CN2259712Y (en) | Lightning protector | |
| CN2140577Y (en) | Intelligent energy saving protector for electric motor | |
| CN2151556Y (en) | Single phase distributor | |
| CN2737000Y (en) | Safety socket with power-down protection and over-voltage protection |
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 |