CN2437067Y - Multi-function circuit protector - Google Patents
Multi-function circuit protector Download PDFInfo
- Publication number
- CN2437067Y CN2437067Y CN 00215458 CN00215458U CN2437067Y CN 2437067 Y CN2437067 Y CN 2437067Y CN 00215458 CN00215458 CN 00215458 CN 00215458 U CN00215458 U CN 00215458U CN 2437067 Y CN2437067 Y CN 2437067Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- control circuit
- utility
- protector
- 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
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model relates to a multifunctional circuit protector. The utility model is characterized in that a primary protection circuit 2, a control circuit II7, and a zero sequence mutual inductor B < 1 > 6 are successively connected; a main power circuit 1 is respectively connected with the primary protection circuit 2, a secondary power circuit 3, and a control circuit I4; the secondary power circuit 3 is respectively connected with the control circuit II7 and a voltage comparing circuit 5; the zero sequence mutual-inductor B < 1 > 6, the voltage comparing circuit 5, and the control circuit I4 are successively connected.
Description
The utility model relates to multifunctional circuit protector technical field.
The present circuit brake function singleness of using, sensitivity is not high, and the fault that causes thus often causes the property heavy losses.
The purpose of this utility model is a kind of multifunctional circuit protector of design, and it is made up of main power circuit, elementary protective circuit, secondary source circuit, control circuit and voltage comparator circuit etc. and can realizes multinomial controls such as overvoltage, electric fire and electric leakages.
The utility model is achieved in that elementary protective circuit 2, control circuit II 7 and zero property instrument transformer B
16 connect successively, and main power circuit 1 connects elementary protective circuit 2, secondary source circuit 3 and control circuit I 4 respectively, and secondary source circuit 3 connects control circuit II 7 and voltage comparator circuit 5 respectively, zero property instrument transformer B
16, voltage comparator circuit 5 is connected successively with control circuit I 4.
The utility model has the advantages that: circuit design is ingenious, and is novel, can realize multinomial control to power circuit by this protector, and low cost of manufacture is highly sensitive.
Below in conjunction with accompanying drawing, the utility model is described further with embodiment:
Fig. 1 theory diagram, Fig. 2 circuit diagram.
In the accompanying drawing: 1, main power circuit, 2, elementary protective circuit, 3, the secondary source circuit, 4, the control circuit I, 5, voltage comparator circuit, 6, zero property instrument transformer B
1, 7, the control circuit II.
When circuit occurs surpassing 250V voltage, piezo-resistance V
RBe low resistive state, electric current is through V
RForm the loop, prevented that overcurrent from entering late-class circuit and having protected power consumption equipment, avoided electric fire to take place.
When sealing in because of various reasons in the circuit or responding to superhigh pressure, and above-mentioned elementary protective circuit 2 is when inoperative, and A point current potential moment is too high, and this voltage is through resistance R
2The step-down shunting, D
5Rectification, B point current potential is more preceding progressively to be increased, when this current potential surmounts comparative voltage and goes up the allowance limit most, 741 amplifier piece A
1And A
26 pin output high potential is through D
6And D
7Rectification is through R
7To controllable silicon V
STrigger electrode makes its conducting work, and electric current is through relay J
LMake it get electric work, its normally-closed contact J
K1And J
K2Disconnection has made main circuit loss protecting power consumption equipment has prevented that electric fire from taking place.
When electricity consumption is improper when causing short circuit or the serious electric leakage of sparking, cause circuit voltage low excessively, this moment A point hypopotenia, B point current potential is low equally excessively, when being lower than the lower limit allowance value of voltage comparator, 741 amplifier piece A
1And A
26 pin output high potential, electric current is through D
6And D
7Rectification is through R
7To controllable silicon V
STrigger electrode makes its conducting, relay J
LWork makes J
K1And J
K2Prevented that electric fire from taking place thereby disconnect.
When circuit generation people and animals get an electric shock, zero property instrument transformer B
1Secondary coil output electric shock signal voltage, this voltage makes controllable silicon V
SConducting, relay J
LGet electric work and make its normally-closed contact J
K1And J
K2Disconnect, thereby avoided people and animals' electric shock.
As 741 amplifier piece A
1And A
2Its signal voltage of voltage comparator that constitutes when two specify between the comparative voltages, A
1And A
2So 6 pin no-output voltages are relay J
LDo not work and make the normal electricity consumption of user.
Claims (1)
1, multifunctional circuit protector is characterized in that: elementary protective circuit (2), control circuit II (7) and zero property instrument transformer B
1(6) connect successively, main power circuit (1) connects elementary protective circuit (2), secondary source circuit (3) and control circuit I (4) respectively, and secondary source circuit (3) connects control circuit II (7) and voltage comparator circuit (5) respectively, zero property instrument transformer B
1(6), voltage comparator circuit (5) is connected successively with control circuit I (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00215458 CN2437067Y (en) | 2000-07-13 | 2000-07-13 | Multi-function circuit protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00215458 CN2437067Y (en) | 2000-07-13 | 2000-07-13 | Multi-function circuit protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2437067Y true CN2437067Y (en) | 2001-06-27 |
Family
ID=33581393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00215458 Expired - Fee Related CN2437067Y (en) | 2000-07-13 | 2000-07-13 | Multi-function circuit protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2437067Y (en) |
-
2000
- 2000-07-13 CN CN 00215458 patent/CN2437067Y/en not_active Expired - Fee Related
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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 |