CN202930929U - Inverter wiring anti-sparking circuit - Google Patents
Inverter wiring anti-sparking circuit Download PDFInfo
- Publication number
- CN202930929U CN202930929U CN 201220676635 CN201220676635U CN202930929U CN 202930929 U CN202930929 U CN 202930929U CN 201220676635 CN201220676635 CN 201220676635 CN 201220676635 U CN201220676635 U CN 201220676635U CN 202930929 U CN202930929 U CN 202930929U
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- Prior art keywords
- inverter
- current
- sparking
- pass switch
- accessed
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- 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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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to an inverter wiring anti-sparking circuit, which comprises an inverter body and is characterized in that: the outside of an internal capacitor bank in the inverter body is connected in series with an anti-sparking subcircuit which is composed of a current-limiting resistor and a by-pass switch which are connected in parallel. Before a storage battery is accessed to the inverter, the by-pass switch is turned on. Then, the storage battery is accessed. As the current-limiting resistor is connected in series, transient impulse current is reduced and the sparking phenomenon is avoided. After the storage battery is accessed, the by-pass switch is connected for normal use. In addition, as costs of the by-pass switch and the current-limiting resistor are low, the inverter wiring anti-sparking circuit is very economical.
Description
Technical field
The utility model relates to the anti-firing circuit of a kind of inverter wiring.
Background technology
Direct current when high-power inverter is worked in order to reduce inversion improves conversion efficiency etc., generally all adopts and improves DC input voitage, no longer adopts 12V or 24V direct current supply.In order to improve conversion efficiency and to reduce instantaneous pressure drop of inversion etc., inverter inside all is designed with jumbo capacitance group, and these capacitance group can be dissipated the electric weight of storage by circuit after the inverter shutdown, and the voltage that makes capacitance group is near 0V.When assembling inverter, we need to connect batteries to inverter, wire with the inverter Contact, the charging of electric capacity can produce huge electric current, immediate current can reach amperes up to a hundred, because loose contact appears in the contact of moment, can cause the very large spark of huge heat generation, serious meeting causes copper tip moment meltdown, also can cause personnel's injury.Adopt special-purpose switch to address this problem, but high cost.Adopt common switch can avoid personnel's injury, can't separating brake but switch is easy to adhesion occur lifting one's head.
Summary of the invention
[0003] the purpose of this utility model is to provide in order to overcome the deficiencies in the prior art a kind of and can occur striking sparks and the cheap anti-firing circuit of inverter wiring when connecting upper batteries to inverter.
To achieve these goals, the utility model discloses the anti-firing circuit of a kind of inverter wiring, comprise the inverter body, it is characterized in that: in described inverter body, the outside of capacitance group is serially connected with the anti-sparking branch road that is in parallel and is consisted of by current-limiting resistance and by-pass switch.
Adopt above-mentioned setting, before the access batteries, open by-pass switch, and then the access batteries, this moment is owing to being serially connected with by current-limiting resistance, reduced the moment impact electric current, avoided spark phenomenon, after connecing appropriate batteries, again that by-pass switch is closed, can normally use, and by-pass switch and current-limiting resistance cheap, very economical.
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Description of drawings
Accompanying drawing 1 is the utility model specific embodiment circuit theory diagrams.
Embodiment
As shown in Figure 1, firing circuit is prevented in the inverter wiring, comprises inverter body 1, and in described inverter body 1, the outside of interior capacitance group C1 is serially connected with the anti-sparking branch road that is in parallel and is consisted of by current-limiting resistance RX and by-pass switch mouth K1.Described inverter body 1 is provided with battery terminal, and described anti-sparking branch road is connected between battery terminal and interior capacitance group C1.Current-limiting resistance RX can select small-power 30 ~ 50W resistance, and the large I of resistance is calculated with Ohm's law according to cell voltage and maximum constraints electric current, and current-limiting resistance RX power can be used P=I
2R calculates maximum power, and the operating time of current-limiting resistance RX can be used t=RCln
Calculate, its operating time is very short, so the actual power of current-limiting resistance RX is optional little, because the charging interval is short, in practical operation is medium when connecting wire, capacitance group C1 voltage is full of substantially, large electric current can not occur on contact when close by-pass switch mouth K1 this moment.
Claims (2)
1. the anti-firing circuit of inverter wiring, comprise the inverter body, and it is characterized in that: in described inverter body, the outside of capacitance group is serially connected with the anti-sparking branch road that is in parallel and is consisted of by current-limiting resistance and by-pass switch.
2. firing circuit is prevented in inverter wiring according to claim 1, and it is characterized in that: described inverter body is provided with battery terminal, and described anti-sparking branch road is connected between battery terminal and interior capacitance group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220676635 CN202930929U (en) | 2012-12-06 | 2012-12-06 | Inverter wiring anti-sparking circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220676635 CN202930929U (en) | 2012-12-06 | 2012-12-06 | Inverter wiring anti-sparking circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202930929U true CN202930929U (en) | 2013-05-08 |
Family
ID=48220839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220676635 Expired - Fee Related CN202930929U (en) | 2012-12-06 | 2012-12-06 | Inverter wiring anti-sparking circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202930929U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654738A (en) * | 2016-11-22 | 2017-05-10 | 昊翔电能运动科技(昆山)有限公司 | Communication electric plug connection part of ignition power prevention type |
| CN106785698A (en) * | 2016-11-22 | 2017-05-31 | 昊翔电能运动科技(昆山)有限公司 | Power-type communicates electrical connectors |
-
2012
- 2012-12-06 CN CN 201220676635 patent/CN202930929U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106654738A (en) * | 2016-11-22 | 2017-05-10 | 昊翔电能运动科技(昆山)有限公司 | Communication electric plug connection part of ignition power prevention type |
| CN106785698A (en) * | 2016-11-22 | 2017-05-31 | 昊翔电能运动科技(昆山)有限公司 | Power-type communicates electrical connectors |
| CN106785698B (en) * | 2016-11-22 | 2019-02-05 | 昊翔电能运动科技(昆山)有限公司 | Power-type communicates electrical connectors |
| CN106654738B (en) * | 2016-11-22 | 2019-05-07 | 昊翔电能运动科技(昆山)有限公司 | Anti- sparking power-type communicates electrical connectors |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20181206 |