CN203589690U - An electric arc protective device - Google Patents
An electric arc protective device Download PDFInfo
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- CN203589690U CN203589690U CN201320268240.0U CN201320268240U CN203589690U CN 203589690 U CN203589690 U CN 203589690U CN 201320268240 U CN201320268240 U CN 201320268240U CN 203589690 U CN203589690 U CN 203589690U
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Abstract
The utility model provides an electric arc protective device comprising a multi-phase voltage sampling module used for acquiring voltage signals in a circuit; a multi-phase current sampling module used for acquiring current signals in the circuit; a micro-processing module used for receiving the voltages signals and the current signals transmitted by the multi-phase voltage sampling module and the multi-phase current sampling module, detecting whether electric-arc-faults exist in the circuit, and controlling an alarm and protection muddle according to detection results; the alarm and protection muddle connected with the micro-processing module and used for carrying out alarming and protection when the electric-arc-faults exist when the micro-processing module determines the electric-arc-faults exist in the circuit; and a control module connected with the micro-processing module and used for setting voltage threshold values and current threshold values. According to the utility model, by means of providing the electric arc protective device, when the electric-arc-faults are determined to exist in the circuit, alarm and motion protection is triggered to carry out alarming, and then the circuit is switched off so as to protect the circuit, so that a user is enabled to take precautions against calamity, and losses are reduced.
Description
Technical field
The utility model relates to electric circuit protection equipment field, particularly a kind of arc protection device.
Background technology
In daily life, industry, can fire hazard in the use procedure of all kinds of electric equipments, the generation of fire will bring a large amount of people's wealth losses.Appliance fire mainly contain reason: the appliance fire being caused by electric current factor and the appliance fire being caused by fault electric arc.
The appliance fire being caused by electric current factor is mainly to have short circuit and overload, and this factor conventionally can touch circuit breaker due to the large electric current of generation or air switch instantaneous operation is cut off the electricity supply, and avoids fire.And the fire that fault electric arc causes causes mainly due to wire outer skin oxidation, aging, electric wire virtual connection, loosening etc.Electric arc factor is because fault electric arc has electric wire overlap joint, but continues to bring near the high temperature combustible that is easy to ignite, but the electric current that earth fault causes is less, and deficiency is so that circuit breaker action tripping operation is cut off the electricity supply, and pyric factor is difficult to precognition.
Utility model content
(1) technical problem solving
The technical problem that the utility model solves is to provide a kind of arc protection device, for judging in time arc fault, takes to report to the police and action protection.
(2) technical scheme
The utility model provides a kind of arc protection device, and described device comprises: ployphase voltages sampling module, multiphase current sampling module, micro treatment module, warning and protection module and control module;
Ployphase voltages sampling module, for the voltage signal of Acquisition Circuit;
Multiphase current sampling module, for the current signal of Acquisition Circuit;
Micro treatment module, be connected with multiphase current sampling module with ployphase voltages sampling module, the voltage signal and the current signal that for receiving ployphase voltages sampling module and multiphase current sampling module, send, and in checking circuit, whether have fault electric arc, and control and report to the police and protection module according to assay;
Report to the police and protection module, be connected with micro treatment module, for reporting to the police when micro treatment module decision circuitry exists fault electric arc and protecting;
Control module, is connected with micro treatment module, for voltage threshold and current threshold are set.
Preferably, micro treatment module comprises follow circuit and AD converter, and follow circuit is connected with multiphase current sampling module with ployphase voltages sampling module respectively, and AD converter is connected with follow circuit;
Follow circuit, for the voltage signal of ployphase voltages sampling module Acquisition Circuit is amplified, also for the current signal of multiphase current sampling module Acquisition Circuit is amplified, and then by the current signal after the voltage signal after amplifying and amplification, carry out filtering;
AD converter, is converted to digital signal for analog signal after follow circuit is processed.
Preferably, micro treatment module also comprises Data Management Analysis module, Data Management Analysis module is connected with AD converter, and for when voltage signal and current signal are after follow circuit and AD converter are processed, the current signal to the voltage signal after processing and after processing calculates respectively.
Preferably, Data Management Analysis module is also for comparing voltage phase signals and voltage threshold, electric current phase signals and current threshold;
When electric current phase signals is greater than current threshold and voltage phase signals and is less than voltage threshold, in circuit, there is fault electric arc;
Described voltage phase signals is the signal that voltage signal obtains after Data Management Analysis resume module, and described electric current phase signals is the signal of current signal after Data Management Analysis resume module.
Preferably, warning is connected with Data Management Analysis module with protection module, and while there is fault electric arc in circuit, Data Management Analysis module trigger alarm and protection module are reported to the police, and reports to the police and protection module open circuit.
(3) beneficial effect
The utility model is by a kind of arc protection device is provided, and while there is arc fault in decision circuit, trigger alarm and action protection are reported to the police, and then open circuit protects circuit, and user is prevented trouble before it happens, and has reduced loss.
Accompanying drawing explanation
Fig. 1 is structure drawing of device of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described.
The utility model provides a kind of arc protection device, and as shown in Figure 1, described device comprises: ployphase voltages sampling module, multiphase current sampling module, micro treatment module, warning and protection module and control module;
Ployphase voltages sampling module, for the voltage signal of Acquisition Circuit;
Multiphase current sampling module, for the current signal of Acquisition Circuit;
Micro treatment module, be connected with multiphase current sampling module with ployphase voltages sampling module, the voltage signal and the current signal that for receiving ployphase voltages sampling module and multiphase current sampling module, send, and in checking circuit, whether have fault electric arc, and control and report to the police and protection module according to assay;
Micro treatment module comprises follow circuit and AD converter, and follow circuit is connected with multiphase current sampling module with ployphase voltages sampling module respectively, and AD converter is connected with follow circuit;
Follow circuit, for the voltage signal of ployphase voltages sampling module Acquisition Circuit is amplified, also for the current signal of multiphase current sampling module Acquisition Circuit is amplified, and then by the current signal after the voltage signal after amplifying and amplification, carry out filtering;
AD converter, is converted to digital signal for analog signal after follow circuit is processed.
Micro treatment module also comprises Data Management Analysis module, Data Management Analysis module is connected with AD converter, for when voltage signal and current signal are after follow circuit and AD converter are processed, respectively the voltage signal after processing and the current signal after processing are calculated.
It is to calculate according to following formula that current signal to the voltage signal after processing and after processing calculates:
D
v=|V
n-1+V
n+1-2V
n| （1）
D
i=|I
n-1+I
n+1-2I
n| （
2）
Wherein, D
vand D
ibe respectively voltage phase signals and electric current phase signals, V
n-1and I
n-1be respectively voltage value and current values that ployphase voltages sampling module and multiphase current sampling module are measured within the period 1, V
nand I
n-1be respectively voltage value and current values that ployphase voltages sampling module and multiphase current sampling module are measured within second round; V
n+1and I
n+1be respectively voltage value and current values that ployphase voltages sampling module and multiphase current sampling module are measured within the period 3.
Control module, is connected with micro treatment module, for voltage threshold and current threshold are set.
Data Management Analysis module is also for comparing voltage phase signals and voltage threshold, electric current phase signals and current threshold;
When electric current phase signals is greater than current threshold and voltage phase signals and is less than voltage threshold, in circuit, there is fault electric arc;
When voltage phase signals is greater than voltage threshold, electric current phase signals may be for being greater than current threshold, when voltage phase signals is greater than voltage threshold and electric current phase signals and is greater than current threshold, in circuit, is normal arc; This situation is in circuit, to access suddenly a powerful electrical equipment.
Described voltage phase signals is the signal that voltage signal obtains after Data Management Analysis resume module, and described electric current phase signals is the signal of current signal after Data Management Analysis resume module.
Report to the police and protection module, be connected with micro treatment module, for reporting to the police when micro treatment module decision circuitry exists fault electric arc and protecting;
Warning is connected with Data Management Analysis module with protection module, and while there is fault electric arc in circuit, Data Management Analysis module trigger alarm and protection module are reported to the police, and reports to the police and protection module open circuit.
Above execution mode is only for illustrating the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that not departing from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (4)
1. an arc protection device, is characterized in that, described device comprises: ployphase voltages sampling module, multiphase current sampling module and micro treatment module;
Ployphase voltages sampling module, sends to micro treatment module by the voltage signal in the circuit collecting;
Multiphase current sampling module, sends to micro treatment module by the current signal in the circuit collecting;
Micro treatment module receiver voltage signal and current signal, to realize the protection of electric arc.
2. device according to claim 1, is characterized in that, micro treatment module comprises follow circuit and AD converter, and follow circuit is connected with multiphase current sampling module with ployphase voltages sampling module respectively, and AD converter is connected with follow circuit;
Follow circuit, the current signal by the voltage signal after amplifying and after amplifying sends to AD converter;
AD converter, receive the voltage signal after the amplification that follow circuit sends and amplify after current signal, the current signal by the voltage signal after amplifying and after amplifying is converted to digital signal.
3. device according to claim 1, is characterized in that, described device also comprises:
Data Management Analysis module, for voltage phase signals and voltage threshold, electric current phase signals and current threshold are compared, sends to judge module by comparative result;
, while being less than voltage threshold for be greater than current threshold and voltage phase signals when electric current phase signals, in decision circuitry, there is fault electric arc in described judge module;
Described voltage phase signals is the signal that voltage signal obtains after Data Management Analysis resume module, and described electric current phase signals is the signal of current signal after Data Management Analysis resume module.
4. according to the device described in any one in claim 1～2; it is characterized in that; described device also comprises: report to the police and protection module; be connected with Data Management Analysis module; while there is fault electric arc in circuit; Data Management Analysis module trigger alarm and protection module are reported to the police, and report to the police and protection module open circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320268240.0U CN203589690U (en) | 2013-05-16 | 2013-05-16 | An electric arc protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320268240.0U CN203589690U (en) | 2013-05-16 | 2013-05-16 | An electric arc protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203589690U true CN203589690U (en) | 2014-05-07 |
Family
ID=50587542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320268240.0U Expired - Fee Related CN203589690U (en) | 2013-05-16 | 2013-05-16 | An electric arc protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203589690U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242264A (en) * | 2014-08-29 | 2014-12-24 | 天津市鸿远电气股份有限公司 | Arc fault protection device for three-phase circuit |
| CN111913084A (en) * | 2020-08-14 | 2020-11-10 | 浙江恒捷智能科技有限公司 | Intelligent fault arc detector |
-
2013
- 2013-05-16 CN CN201320268240.0U patent/CN203589690U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242264A (en) * | 2014-08-29 | 2014-12-24 | 天津市鸿远电气股份有限公司 | Arc fault protection device for three-phase circuit |
| CN111913084A (en) * | 2020-08-14 | 2020-11-10 | 浙江恒捷智能科技有限公司 | Intelligent fault arc detector |
| CN111913084B (en) * | 2020-08-14 | 2023-04-11 | 浙江恒捷智能科技有限公司 | Intelligent fault arc detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20150516 |
|
| EXPY | Termination of patent right or utility model |