CN202121313U - Infrared probe and discharge circuit thereof - Google Patents
Infrared probe and discharge circuit thereof Download PDFInfo
- Publication number
- CN202121313U CN202121313U CN201120207933XU CN201120207933U CN202121313U CN 202121313 U CN202121313 U CN 202121313U CN 201120207933X U CN201120207933X U CN 201120207933XU CN 201120207933 U CN201120207933 U CN 201120207933U CN 202121313 U CN202121313 U CN 202121313U
- Authority
- CN
- China
- Prior art keywords
- circuit
- capacitor
- infrared detectors
- discharge circuit
- output
- 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
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model is applied to the field of circuit protection and provides an infrared probe and a discharge circuit thereof, which is connected with an infrared probe interface circuit, an infrared probe signal processing circuit and a voltage stabilizing protection circuit. The discharge circuit comprises an inductor, a capacitor and a machine casing. A first end of the inductor serves as an input end of the discharge circuit, the first end of the inductor is connected with an equipotential ground, a second end of the inductor serves as an output end of the discharge circuit, and the second end of the inductor is simultaneously connected with a first input end of the signal processing circuit of the infrared probe and a second output end of the voltage stabilizing protection circuit. The first end of the capacitor is simultaneously connected with the first end of the inductor, a first output end of the voltage stabilizing protection circuit and the equipotential ground. The machine casing is connected with a second end of the capacitor. The problem that under the condition that an infrared probe device with a metal casing does not utilize a special ground wire, when static or lightning stroke occurs, a halted system or wrong probing results of the probe device are likely to occur is resolved so that the infrared probe is protected against the static and the lighting stroke when the special ground wire is used, and accordingly the rate of system halting and wrong probing results is greatly reduced.
Description
Technical field
The utility model belongs to circuit protection field, relates in particular to a kind of Infrared Detectors and discharge circuit thereof.
Background technology
At present, the infrared acquisition equipment with metal shell all need use special-purpose ground wire, yet, under the situation of not using special-purpose ground wire, when static taking place or be struck by lightning, very easily cause this detecting devices the problem of deadlock, result of detection mistake to occur.
The utility model content
The purpose of the utility model is to provide a kind of Infrared Detectors and discharge circuit thereof; Be intended to solve owing to do not use under the situation of special-purpose ground wire at infrared acquisition equipment with metal shell; When static taking place or be struck by lightning, very easily cause this detecting devices the problem of deadlock, result of detection mistake to occur.
The utility model is achieved in that a kind of discharge circuit, is connected with Infrared Detectors interface circuit, Infrared Detectors signal processing circuit and protective circuit of voltage regulation, and the discharge circuit of said Infrared Detectors comprises:
First end is the input of said discharge circuit; And said first end is connected with equipotential ground; Second end is the output of said discharge circuit, and the inductance that is connected with second output of the first input end of said Infrared Detectors signal processing circuit and said protective circuit of voltage regulation simultaneously of said second end;
The electric capacity that first end is connected with first output and the equipotential ground of first end of said inductance, said protective circuit of voltage regulation simultaneously; And
The casing that is connected with second end of said electric capacity.
Another purpose of the utility model is to provide a kind of Infrared Detectors, and said Infrared Detectors comprises above-mentioned discharge circuit, and said discharge circuit comprises:
First end is the input of said discharge circuit; And said first end is connected with equipotential ground; Second end is the output of said discharge circuit, and the inductance that is connected with second output of the first input end of said Infrared Detectors signal processing circuit and said protective circuit of voltage regulation simultaneously of said second end;
The electric capacity that first end is connected with first output and the equipotential ground of first end of said inductance, said protective circuit of voltage regulation simultaneously; And
The casing that is connected with second end of said electric capacity.
In the utility model; Through comprising that first end is connected with equipotential ground; The inductance that second end is connected with second output of the first input end of Infrared Detectors signal processing circuit and protective circuit of voltage regulation simultaneously; First end simultaneously with the discharge circuit of first output of first end of this inductance, this protective circuit of voltage regulation and electric capacity that equipotential ground is connected and the casing that is connected with second end of this electric capacity; Realized under the situation of not using special-purpose ground wire, Infrared Detectors has been carried out the purpose of lightning protection, antistatic protection, made that crashing appears in Infrared Detectors, the probability of result of detection mistake greatly reduces.
Description of drawings
Fig. 1 is the structure chart of the discharge circuit that provides of the utility model embodiment;
Fig. 2 is the structure chart of the protective circuit of voltage regulation that is connected with discharge circuit that provides of the utility model embodiment.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 shows the structure of the discharge circuit that the utility model embodiment provides, and for the ease of explanation, only shows the part relevant with the utility model.
This discharge circuit is connected with Infrared Detectors interface circuit, Infrared Detectors signal processing circuit and protective circuit of voltage regulation, and this discharge circuit comprises:
Inductance L 1, capacitor C 1 and casing PGND.
First end of inductance L 1 is connected with equipotential ground; Second end of inductance L 1 is connected with the first input end of Infrared Detectors signal processing circuit and second output of protective circuit of voltage regulation simultaneously; And first end of this inductance L 1 is the input of this discharge circuit, and second end of this inductance L 1 is the output of this discharge circuit;
First end of capacitor C 1 is connected with first end of inductance L 1, first output and the equipotential ground of protective circuit of voltage regulation simultaneously; And
The casing PGND that is connected with second end of this capacitor C 1.
As the utility model one embodiment, this capacitor C 1 is a safety electric capacity.
As the utility model one embodiment; This protective circuit of voltage regulation comprises transient voltage restraining diode TR1, fuse F1, piezo-resistance RV1, rectifier bridge BR1, electrochemical capacitor C2, capacitor C 3, capacitor C 4, electrochemical capacitor C5, inductance L 2 and power Vcc; First end of this transient voltage restraining diode TR1 is connected with first output of Infrared Detectors interface circuit and first end of this fuse F1 simultaneously; Second end of this transient voltage restraining diode TR1 is connected with second output of Infrared Detectors interface circuit and second end of this piezo-resistance RV1 simultaneously; Second end of this fuse F1 is connected with first end of this piezo-resistance RV1 and the positive input terminal of this rectifier bridge BR1 simultaneously; Second end of this piezo-resistance RV1 is connected with the negative input end of this rectifier bridge BR1; The earth terminal ground connection of this rectifier bridge BR1; The output of this rectifier bridge BR1 is connected with the positive pole of this electrochemical capacitor C2, first end of capacitor C 3 and first end of inductance L 2 simultaneously; The negative pole of this electrochemical capacitor C2 is connected with second end of this capacitor C 3 and the input of discharge circuit simultaneously; Second end while of this inductance L 2 is connected with first end of the positive pole of this power Vcc, this electrochemical capacitor C4, capacitor C 5 and the first input end of this Infrared Detectors signal processing circuit is connected, and the negative pole of this electrochemical capacitor C4 output, second end of this capacitor C 5 and second input of this Infrared Detectors signal processing circuit of this discharge circuit simultaneously is connected.
The utility model embodiment also provides a kind of Infrared Detectors that comprises above-mentioned discharge circuit.
Operation principle is:
When thunderbolt or static occurring, high voltage thunderbolt interference or electrostatic high-pressure disturb and through casing PGND capacitor C 1 are charged, and 1 pair of equipotential ground of capacitor C discharges, and at this moment, inductance L 1 plays infrared acquisition signal processing circuit insulation blocking effect.In addition, the components and parts in the circuit also can transform the electrostatic energy of a part.In the circuit working process; Transient voltage restraining diode TR1 in the protective circuit of voltage regulation can be limited in the too high abnormal voltage of input within the scope of a safety; Use insurance and the zinc oxide piezo-resistance RV1 as the material sintering, utilize its nonlinear characteristic and high surge absorbability protection back circuit, rectifier bridge heap BR1 plays rectified action; No matter the device input terminal voltage is that interchange or direct current are equal, all can be subsequent conditioning circuit direct voltage is provided.Electrochemical capacitor C2, capacitor C 3, electrochemical capacitor C4, capacitor C 5 and inductance L 2 are formed π type filter circuit, to stablize subsequent conditioning circuit voltage.
In the utility model, this discharge circuit comprises inductance L 1, capacitor C 1 and casing PGND.The utility model is connected with equipotential ground through first end of inductance L 1; Second end of inductance L 1 is connected with the first input end of Infrared Detectors signal processing circuit and second output of protective circuit of voltage regulation simultaneously; First end of capacitor C 1 is connected with first end of inductance L 1, first output and the equipotential ground of protective circuit of voltage regulation simultaneously; Casing PGND is connected with second end of capacitor C 1, has solved owing to not using at the infrared acquisition equipment with metal shell under the situation of special-purpose ground wire, when static taking place or be struck by lightning; Very easily cause this detecting devices the problem of deadlock, result of detection mistake to occur; Thereby make under the situation of not using special-purpose ground wire, Infrared Detectors is carried out the purpose of lightning protection, antistatic protection, greatly reduce that crashing appears in Infrared Detectors, the probability of result of detection mistake.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (6)
1. a discharge circuit is connected with Infrared Detectors interface circuit, Infrared Detectors signal processing circuit and protective circuit of voltage regulation, it is characterized in that said discharge circuit comprises:
First end is the input of said discharge circuit; And said first end is connected with equipotential ground; Second end is the output of said discharge circuit, and the inductance that is connected with second output of the first input end of said Infrared Detectors signal processing circuit and said protective circuit of voltage regulation simultaneously of said second end;
The electric capacity that first end is connected with first output and the equipotential ground of first end of said inductance, said protective circuit of voltage regulation simultaneously; And
The casing that is connected with second end of said electric capacity.
2. discharge circuit as claimed in claim 1 is characterized in that, said electric capacity is safety electric capacity.
3. discharge circuit as claimed in claim 1; It is characterized in that; Said protective circuit of voltage regulation comprises transient voltage restraining diode TR1, fuse F1, piezo-resistance RV1, rectifier bridge BR1, electrochemical capacitor C2, capacitor C 3, capacitor C 4, electrochemical capacitor C5, inductance L 2 and power Vcc; First end of said transient voltage restraining diode TR1 is connected with first output of Infrared Detectors interface circuit and first end of said fuse F1 simultaneously; Second end of said transient voltage restraining diode TR1 is connected with second output of Infrared Detectors interface circuit and second end of said piezo-resistance RV1 simultaneously; Second end of said fuse F1 is connected with first end of said piezo-resistance RV1 and the positive input terminal of said rectifier bridge BR1 simultaneously; Second end of said piezo-resistance RV1 is connected with the negative input end of said rectifier bridge BR1; The earth terminal ground connection of said rectifier bridge BR1; The output of said rectifier bridge BR1 is connected with the positive pole of said electrochemical capacitor C2, first end of capacitor C 3 and first end of inductance L 2 simultaneously; The negative pole of said electrochemical capacitor C2 is connected with second end of said capacitor C 3 and the input of discharge circuit simultaneously; Second end while of said inductance L 2 is connected with first end of the positive pole of said power Vcc, said electrochemical capacitor C4, capacitor C 5 and the first input end of said Infrared Detectors signal processing circuit is connected, and the negative pole of said electrochemical capacitor C4 output, second end of said capacitor C 5 and second input of said Infrared Detectors signal processing circuit of said discharge circuit simultaneously is connected.
4. an Infrared Detectors is characterized in that, said Infrared Detectors comprises discharge circuit, and said discharge circuit comprises:
First end is the input of said discharge circuit; And said first end is connected with equipotential ground; Second end is the output of said discharge circuit, and the inductance that is connected with second output of the first input end of said Infrared Detectors signal processing circuit and said protective circuit of voltage regulation simultaneously of said second end;
The electric capacity that first end is connected with first output and the equipotential ground of first end of said inductance, said protective circuit of voltage regulation simultaneously; And
The casing that is connected with second end of said electric capacity.
5. Infrared Detectors as claimed in claim 4 is characterized in that, said electric capacity is safety electric capacity.
6. Infrared Detectors as claimed in claim 4; It is characterized in that; Said protective circuit of voltage regulation comprises transient voltage restraining diode TR1, fuse F1, piezo-resistance RV1, rectifier bridge BR1, electrochemical capacitor C2, capacitor C 3, capacitor C 4, electrochemical capacitor C5, inductance L 2 and power Vcc; First end of said transient voltage restraining diode TR1 is connected with first output of Infrared Detectors interface circuit and first end of said fuse F1 simultaneously; Second end of said transient voltage restraining diode TR1 is connected with second output of Infrared Detectors interface circuit and second end of said piezo-resistance RV1 simultaneously; Second end of said fuse F1 is connected with first end of said piezo-resistance RV1 and the positive input terminal of said rectifier bridge BR1 simultaneously; Second end of said piezo-resistance RV1 is connected with the negative input end of said rectifier bridge BR1; The earth terminal ground connection of said rectifier bridge BR1; The output of said rectifier bridge BR1 is connected with the positive pole of said electrochemical capacitor C2, first end of capacitor C 3 and first end of inductance L 2 simultaneously; The negative pole of said electrochemical capacitor C2 is connected with second end of said capacitor C 3 and the input of discharge circuit simultaneously; Second end while of said inductance L 2 is connected with first end of the positive pole of said power Vcc, said electrochemical capacitor C4, capacitor C 5 and the first input end of said Infrared Detectors signal processing circuit is connected, and the negative pole of said electrochemical capacitor C4 output, second end of said capacitor C 5 and second input of said Infrared Detectors signal processing circuit of said discharge circuit simultaneously is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120207933XU CN202121313U (en) | 2011-06-20 | 2011-06-20 | Infrared probe and discharge circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120207933XU CN202121313U (en) | 2011-06-20 | 2011-06-20 | Infrared probe and discharge circuit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202121313U true CN202121313U (en) | 2012-01-18 |
Family
ID=45462350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120207933XU Expired - Lifetime CN202121313U (en) | 2011-06-20 | 2011-06-20 | Infrared probe and discharge circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202121313U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347043A (en) * | 2018-03-06 | 2018-07-31 | 合肥中科离子医学技术装备有限公司 | A kind of electrical protection systems of cyclotron electrostatic deflection plates |
-
2011
- 2011-06-20 CN CN201120207933XU patent/CN202121313U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108347043A (en) * | 2018-03-06 | 2018-07-31 | 合肥中科离子医学技术装备有限公司 | A kind of electrical protection systems of cyclotron electrostatic deflection plates |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104362608A (en) | Overvoltage suppression and under-voltage surge detection circuit | |
| CN201001023Y (en) | Power supply protective circuit of apparatus instrument | |
| CN202121313U (en) | Infrared probe and discharge circuit thereof | |
| CN204190381U (en) | A kind of antisurge interference prevention device based on power meter reading system | |
| CN203491680U (en) | Automatic reset electric leakage overvoltage/undervoltage protection circuit | |
| CN107394769B (en) | Power supply protector and communication in moving satellite communication antenna equipment | |
| CN202373958U (en) | Over/under voltage protection circuit | |
| CN207689592U (en) | A kind of lightning arrester monitor with impact current for measuring | |
| CN105977910A (en) | Secondary protection measurement and control system based on current transformer | |
| CN103326344B (en) | A kind of overvoltage limiting circuit | |
| CN104638897A (en) | Device with anti-surge function and filter function | |
| CN204464983U (en) | Novel lightning protecting laptop circuit | |
| CN204012686U (en) | A kind of serial interface circuit with lightning protection function | |
| CN202997329U (en) | Lightning-protection power distribution cabinet | |
| CN208890636U (en) | Power supply over-voltage spike detection circuit | |
| CN207571206U (en) | A kind of lightning arrestor movement detecting system based on traveling wave detector | |
| CN202134911U (en) | Detection protection circuit for preventing reverse connection of power supply fire wire and zero wire | |
| CN204012691U (en) | Prevent from collecting the composite type thunder resisting equipment that recording electric energy meter is destroyed by thunder and lightning | |
| CN104113054A (en) | Combined type anti-thunder equipment capable of preventing concentrated copy electric energy meter from being damaged by thunder and lightning | |
| CN206195713U (en) | Solar energy photovoltaic power generation system | |
| CN205080676U (en) | Electronic circuit high pressure warning protection circuit | |
| CN202533499U (en) | Three-phase combined type overvoltage protection counter with remote display | |
| CN203479890U (en) | Counting device of lightning protection equipment | |
| CN103906332A (en) | Aerial electricity receiver | |
| CN103683245B (en) | There is the communication base station controller of carrying out surge protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Shenzhen City, Guangdong Province, Guangming New District 518000 000 Daiheng Guangming high tech Industrial Park, building fourth, building fifth, first floor Patentee after: Zhong An (Shenzhen) Co., Ltd. Address before: 518106 security and manufacturing (China) Industrial Park, 4, 5 buildings, Chang Chun village, public road, Guangming District, Shenzhen, Guangdong Patentee before: Shenzhen Haoen Safety Technology Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 fourth buildings and fifth first floor of Wan Dai Heng Guangming hi tech Industrial Park, Guangming New District, Shenzhen, Guangdong Patentee after: Shenzhen Haoen Safety Technology Co., Ltd. Address before: 518000 fourth buildings and fifth first floor of Wan Dai Heng Guangming hi tech Industrial Park, Guangming New District, Shenzhen, Guangdong Patentee before: Zhong An (Shenzhen) Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120118 |