CN201166386Y

CN201166386Y - Ignition device

Info

Publication number: CN201166386Y
Application number: CNU2007203025218U
Authority: CN
Inventors: 刘克光; 车东; 李路; 郭朝晖; 陈威; 刘文强
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2007-12-29
Filing date: 2007-12-29
Publication date: 2008-12-17
Anticipated expiration: 2017-12-29

Abstract

The utility model provides an ignition device includes: the electromagnetic valve group is provided with a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, wherein a first side port of each electromagnetic valve is communicated with the air inlet, and a second side port of each electromagnetic valve is communicated with the air outlet of the corresponding air inlet; a pulse igniter; the electronic control device is characterized by further comprising an electronic control device, wherein the electronic control device is provided with two input ports which are respectively connected with the first switch and the second switch, and four output ports which are respectively connected with the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve and the pulse igniter. The utility model discloses save the air supply, reduced the risk that the work air supply leaked and be convenient for operate to the at utmost.

Description

Igniter

Technical field

The utility model relates to a kind of igniter.

Background technology

The ignition process of prior art fast ignitor is " first source of the gas is connected igniting again ", therefore produces the waste of work source of the gas after connecting source of the gas with before the igniting action; After weld job stopped on the other hand, existing igniter was not in time controlled in time closing of welding protection source of the gas nitrogen, causes the waste of protection source of the gas.

Because in the ignition process of prior art, it is asynchronous with igniting that source of the gas is connected, thus under the weld job state when accidentally welding torch being bumped, the switch of igniter can be triggered and cause the work source of the gas to leak, thereby produces potential safety hazard.On the other hand, the igniter of prior art is because transformer is arranged on igniter inside, so high pressure 220V occurs in igniter inside to the conversion of low pressure, therefore when certain station carries out weld job, may contact high pressure in the working region, this is absolutely unsafe.

From the above mentioned, there is the source of the gas waste on the one hand in the prior art igniter, has potential safety hazard on the other hand.

The utility model content

The utility model is devoted to overcome the above-mentioned defective of prior art just and is made.The purpose of this utility model is to propose a kind of igniter and comprises: the magnetic valve group, have first, second and the 3rd magnetic valve, and first side ports of each magnetic valve is communicated with air inlet, and second side ports is communicated with the gas outlet of corresponding air inlet; Pulse igniter; It is characterized in that, comprise that also electronic-controlled installation, electronic-controlled installation have two input ports that connect first switch and second switch respectively, and four output ports that connect first, second, third magnetic valve and pulse igniter respectively.

Electronic-controlled installation is a single-chip microcomputer, and single-chip microcomputer responds the closure of first switch and controls the 3rd solenoid valve conduction.

Preferably, during first switch closure, first control signal of single-chip microcomputer response second switch is controlled first, second magnetic valve conducting and while trigger impulse igniter together.

Preferably, the disconnection that single-chip microcomputer responds first switch is controlled first, second magnetic valve and is disconnected simultaneously, and the 3rd magnetic valve postpones to disconnect than first, second magnetic valve.

Preferably, first switch is a Piezoelectric switches, and igniter has support or the hook that triggers first switch.

Preferably, second switch is the pulsed arc switch.

Preferably, the power access end of transformer and igniter is external.

Preferably, heat sink is connected with first switch.

Preferably, heat sink is a fan.

Preferably, igniter has the stator that is used for fixing igniter.

Because igniter of the present utility model; control the magnetic valve group by single-chip microcomputer responding to switch signal and make that source of the gas connection and igniting are synchronous; and after weld job stops, can controlling protection-gas welding source nitrogen time-delay closing, therefore can save source of the gas to greatest extent.

On the other hand, the utility model is implemented the secondary protection for dangerous work source of the gas (liquefied gas, oxygen), welding torch, the welding pharos mouth picked up on support/hook are clicked the control of two steps near the pulsed arc switch, just can finish the electric arc origin of igniting, work synchronously and connect, effectively stop on the support/hook of prior art igniter the welding torch and bumped the liquefied gas, the oxygen that the cause potential safety hazard that leaks in a large number unintentionally.

Moreover, because transformer and igniter power access end are external,, therefore there is the electric leakage potential safety hazard during operation so high pressure and low pressure conversion are in outside the working region.

Should be appreciated that above generality is described and the following detailed description is all enumerated and illustrative, purpose is in order to provide further instruction to claimed the utility model.

Description of drawings

Accompanying drawing is formed the part of this specification, with helping further understand the utility model.These accompanying drawings illustrate embodiment more of the present utility model, and can be used for illustrating principle of the present utility model with specification.In the accompanying drawing:

Fig. 1 shows the schematic diagram of the utility model igniter.

The specific embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.Identical in the accompanying drawings parts are represented with identical label.

With reference to figure 1, the utility model comprises transformer, first, second switch, heat sink, electronic-controlled installation, pulse igniter and first, second, third magnetic valve.Electronic-controlled installation is a single-chip microcomputer in the present embodiment, be connected with first switch between the first input end mouth 1 of single-chip microcomputer and the transformer as can be seen from Figure 1, be connected with second switch between second input port 2 and the transformer, first, second,

third output port

4,5,6 be electrically connected with the coil of first, second, third magnetic valve respectively in case can response signal the break-make of control magnetic valve, the 4th output port 3 is electrically connected with pulse igniter, and pulse igniter can receive control signal with the generation electric arc of igniting from single-chip microcomputer.First side ports of first magnetic valve is communicated with the liquefied gas air inlet, and second side ports is communicated with the liquefied gas gas outlet; Accordingly, the corresponding port of second, third magnetic valve connects the break-make of the air inlet/outlet of oxygen, nitrogen with the control origin respectively.The power access end of transformer and igniter is external.

When weld job, by the stator that is arranged on the igniter this igniter is fixed on the workbench, the welding torch that will be connected with igniter by the source of the gas path takes off from the hook of igniter, then hook triggers first switch and is in closure state, single-chip microcomputer responded the closure of first switch and controlled the 3rd solenoid valve conduction and to welding torch the supply of nitrogen this moment, meanwhile can control the heat sink (being that phoenix fans in the utility model) of connect with first switch and start working; Then the welding torch burner is promptly triggered second switch (being the pulsed arc switch in the utility model) near the igniting of the pulse firing place of igniting, particularly, first control signal of the second switch of single-chip microcomputer response is at this moment controlled first, second magnetic valve conducting supply liquefied gas and oxygen and the igniting of trigger impulse igniter realization simultaneously together.In whole weld job process, external transformer is placed on beyond the working region, and operating personnel can not have the risk that touches high pressure during operation.

When stopping weld job, welding torch is hung on the hook of igniter, make the switch off state of winning, single-chip microcomputer responds the disconnection of first switch and controls the supply that first, second magnetic valve disconnects cut-out liquefied gas and oxygen simultaneously, after about 10 seconds, Single-chip Controlling the 3rd magnetic valve disconnects stop supplies nitrogen.It is oxidized that the delay of the 3rd magnetic valve disconnects the workpiece that can prevent from still to be in heated condition, and reduce the discharging of nitrogen under the off working state.

From the above mentioned as can be known, first switch is a master switch in the utility model, and when first switch cut out, each in the magnetic valve group all is in off-state can not the trigger impulse igniter; And when when no matter triggering first switch and make it closed for need of work or maloperation, short of triggering second switch, then second, third magnetic valve just can the conducting air feed, can the trigger impulse igniter yet.That is, the utility model makes work source of the gas (oxygen, liquefied gas) obtain the secondary protection by the control of single-chip microcomputer to magnetic valve group and pulse igniter.

Although the utility model is illustrated with reference to accompanying drawing and preferred embodiment, obviously, for a person skilled in the art, under the prerequisite that does not deviate from spirit and scope of the present utility model, can make various changes and variation to the utility model.Various change of the present utility model, the content that changes by appending claims and equivalent thereof contain.

Claims

1. igniter comprises:

The magnetic valve group has first, second and the 3rd magnetic valve, and first side ports of each magnetic valve is communicated with air inlet, and second side ports is communicated with the gas outlet of corresponding air inlet;

Pulse igniter;

It is characterized in that, also comprise electronic-controlled installation, described electronic-controlled installation has two input ports (1 that connect first switch and second switch respectively, 2) four output ports (4,5 that, and respectively connect described first, second, third magnetic valve and pulse igniter, 6,3).

2. igniter according to claim 1 is characterized in that, described electronic-controlled installation is a single-chip microcomputer, and described single-chip microcomputer responds the closure of described first switch and controls described the 3rd solenoid valve conduction.

3. igniter according to claim 2 is characterized in that, during described first switch closure, and described first, second magnetic valve of first control signal control that described single-chip microcomputer responds described second switch conducting and trigger described pulse igniter simultaneously together.

4. igniter according to claim 3 is characterized in that, described first, second magnetic valve of disconnection control that described single-chip microcomputer responds described first switch disconnects simultaneously, and described the 3rd magnetic valve postpones to disconnect than described first, second magnetic valve.

5. igniter according to claim 4 is characterized in that, described first switch is a Piezoelectric switches, and described igniter has support or the hook that triggers described first switch.

6. igniter according to claim 5 is characterized in that, described second switch is the pulsed arc switch.

7. igniter according to claim 6 is characterized in that described igniter also comprises transformer, and the power access end of described transformer and described igniter is external.

8. igniter according to claim 7 is characterized in that described igniter also comprises heat sink, and described heat sink is connected with described first switch.

9. igniter according to claim 8 is characterized in that, described heat sink is a fan.

10. igniter according to claim 9 is characterized in that described igniter has the stator that is used for fixing described igniter.