CN203579029U - Inverter welding machine with stepped temperature heat protection function - Google Patents
Inverter welding machine with stepped temperature heat protection function Download PDFInfo
- Publication number
- CN203579029U CN203579029U CN201320629383.XU CN201320629383U CN203579029U CN 203579029 U CN203579029 U CN 203579029U CN 201320629383 U CN201320629383 U CN 201320629383U CN 203579029 U CN203579029 U CN 203579029U
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- welding machine
- control circuit
- temperature
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Abstract
The utility model relates to an inverter welding machine with a stepped temperature heat protection function. Circuits of the inverter welding machine comprise a working circuit, a control circuit, a protecting arithmetic circuit and a thermosensitive resistor arranged on a protected component, wherein the thermosensitive resistor is connected with the protecting arithmetic circuit, the protecting arithmetic circuit outputs signals to the control circuit, and the control circuit controls the working circuit to be closed or opened and controls the current intensity of the working circuit. When the inverter welding machine works, the protecting arithmetic circuit tracking temperature in real time through the thermosensitive resistor, when excess usage reach a primary temperature protecting limit, the protecting arithmetic circuit reduces the secondary output current of the inverter welding machine through the control circuit, and therefore the inverter welding machine can still work normally and remind an operator to pay attention to the continuous duty cycle of the welding machine in a lamp flashing mode; if the operator continues to use the machine excessively with the excess duty cycle, when the temperature of a semiconductor rises to a secondary temperature protecting limit, the protecting arithmetic circuit will forcibly cut off the current in the working circuit through the control circuit.
Description
technical field:
The utility model relates to electric welding machine technical field, particularly a kind of inverter type welder with step temperature heat protection function.
background technology:
Inverter type welder is little with volume, lightweight, environmental protection, energy-conservation, come into the market in a large number, liked by client, inverter type welder work output current is large, efficiency is high, temperature rise, during inverter main circuit work, caloric value is large, and the power device using in circuit, semiconductor components and devices has temperature maximum limit, if will damage semiconductor devices during without temperature protection high temperature, cause serious consequence, electric welding machine is in the market all simply at machine intimate, to load onto one or more temperature relays, as long as surpass temperature, just cut off by force secondary current, welder's operation is brought to a lot of inconvenience.
summary of the invention:
Given this, be necessary to design a kind of protection and inverter type welder with step temperature heat protection function of reminding of having concurrently.
An inverter type welder with step temperature heat protection function, its circuit comprises: operating circuit, control circuit, protection computing circuit and be arranged on the thermo-sensitive resistor on protected components and parts; Wherein, thermo-sensitive resistor is connected with protection computing circuit, and protection computing circuit is exported to control circuit by signal, the size of electric current in the break-make of control circuit control operating circuit and operating circuit.
Preferably, signal output apparatus is connected to signal lamp.
The utility model protects computing circuit to pass through thermo-sensitive resistor real-time tracking temperature when work; along with semiconductor components and devices temperature raises, exceeding the quata to use when reaching temperature and once protecting the limit; protection computing circuit reduces the secondary output current of inverter type welder by control circuit; make normal output current be adjusted downward to 70% of former setting operating current; now, inverter type welder can also normally work and in flashing light mode, remind that operative employee notes welding machine continue to account for the rate of carrying.If continuing to exceed the quata to account for the rate of carrying, operative employee uses; the temperature of semiconductor components and devices raises while reaching the temperature second protection limit; protection computing circuit by the electric current cutting off by force in operating circuit, carries out standby by control circuit, guarantees the normal service life of inverter type welder.
accompanying drawing explanation:
Accompanying drawing 1 is the frame diagram of the inverter type welder with step temperature heat protection function of a width better embodiment.
the specific embodiment:
As shown in Figure 1, a kind of inverter type welder with step temperature heat protection function, its circuit comprises: operating circuit, control circuit, protection computing circuit and be arranged on the thermo-sensitive resistor on protected components and parts; Wherein, thermo-sensitive resistor is connected with protection computing circuit, and protection computing circuit is exported to control circuit by signal, the size of electric current in the break-make of control circuit control operating circuit and operating circuit.Signal output apparatus is connected to signal lamp.
The utility model protects computing circuit to pass through thermo-sensitive resistor real-time tracking temperature when work; along with semiconductor components and devices temperature raises, exceeding the quata to use when reaching temperature and once protecting the limit; protection computing circuit reduces the secondary output current of inverter type welder by control circuit; make normal output current be adjusted downward to 70% of former setting operating current; now, inverter type welder can also normally work and in flashing light mode, remind that operative employee notes welding machine continue to account for the rate of carrying.If continuing to exceed the quata to account for the rate of carrying, operative employee uses; the temperature of semiconductor components and devices raises while reaching the temperature second protection limit; protection computing circuit by the electric current cutting off by force in operating circuit, carries out standby by control circuit, guarantees the normal service life of inverter type welder.
Claims (2)
1. an inverter type welder with step temperature heat protection function, is characterized in that: its circuit comprises: operating circuit, control circuit, protection computing circuit, signal output apparatus and be arranged on the thermo-sensitive resistor on protected components and parts; Wherein, thermo-sensitive resistor is connected with protection computing circuit, and protection computing circuit is exported to control circuit by signal, the size of electric current in the break-make of control circuit control operating circuit and operating circuit, and signal output apparatus is connected with protection computing circuit.
2. the inverter type welder with step temperature heat protection function as claimed in claim 1, is characterized in that: signal output apparatus is connected to signal lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320629383.XU CN203579029U (en) | 2013-10-13 | 2013-10-13 | Inverter welding machine with stepped temperature heat protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320629383.XU CN203579029U (en) | 2013-10-13 | 2013-10-13 | Inverter welding machine with stepped temperature heat protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203579029U true CN203579029U (en) | 2014-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320629383.XU Expired - Fee Related CN203579029U (en) | 2013-10-13 | 2013-10-13 | Inverter welding machine with stepped temperature heat protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203579029U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026654A (en) * | 2019-04-26 | 2019-07-19 | 吴忠市黄河电焊机有限公司 | A kind of anti-interference good digital source of welding current of wide scope input |
-
2013
- 2013-10-13 CN CN201320629383.XU patent/CN203579029U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110026654A (en) * | 2019-04-26 | 2019-07-19 | 吴忠市黄河电焊机有限公司 | A kind of anti-interference good digital source of welding current of wide scope input |
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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: 20140507 Termination date: 20161013 |