CN203887401U - Small welding machine of single circuit board structure - Google Patents
Small welding machine of single circuit board structure Download PDFInfo
- Publication number
- CN203887401U CN203887401U CN201420220939.4U CN201420220939U CN203887401U CN 203887401 U CN203887401 U CN 203887401U CN 201420220939 U CN201420220939 U CN 201420220939U CN 203887401 U CN203887401 U CN 203887401U
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- CN
- China
- Prior art keywords
- radiator
- single circuit
- welding machine
- circuit board
- circuit plate
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 27
- 239000004065 semiconductor Substances 0.000 claims abstract description 11
- 239000011324 bead Substances 0.000 claims description 11
- 239000013078 crystal Substances 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000428 dust Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Arc Welding Control (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses a small welding machine of a single circuit board structure. The small welding machine of the single circuit board structure comprises a case, wherein a fan is arranged on a rear panel of the case, a welding machine main circuit and a control circuit are integrated on a single circuit board, a radiator support is fixed on a bottom plate of the case, a plurality of independent radiators are fixed on the radiator support, the radiators are distributed on the radiator support in an upper and a lower rows, an air baffle plate which is used to prevent supplied air from flowing out from a space between the fan and the radiator and a space between the upper and the lower rows of radiators, and the air which is sent from the fan is sent out from an air channel which consists of the radiator, the air baffle plate and the single circuit board. The small welding machine of the single circuit board structure has the beneficial effects that the small welding machine of the single circuit board structure is unique in design of the air channel, greatly reduces cross section of the air channel, fixes various power semiconductor devices outside the air channel, and can effectively prevent dust by arranging a transistor seat outside a pin when the power semiconductor devices are connected with the single circuit board, thereby improving reliability of the power semiconductor devices.
Description
Technical field
The utility model belongs to electric welding machine field, relates in particular to a kind of miniature welding machine of single circuit plate structure.
Background technology
Traditional welding machine radiator designs for integral type, IGBT is all connected with radiator by seals such as pottery or heat conductive insulating cloth with diode, the circuit of IGBT and diode is all by circuit board (PCB) and wire transmission, has the shortcomings such as assembling difficulty, complex circuit, safety and stability are low.
Electric welding machine, when dispelling the heat, often need to be installed blower fan at cabinet inside, and along blower fan air supply direction, an air channel that is conducive to heat radiation is set in cabinet.Often there is following shortcoming in existing air channel:
(1) air channel arranges in vertical direction, and duct cross-section is long-pending large, and wind-force is not concentrated, and radiating effect is poor, increases welding machine weight, increases production cost.
(2) air channel arranges in the horizontal direction, and control circuit, main circuit and various power device be all arranged on inside, air channel, of long duration can adhere to a large amount of dusts, affects the normal connection of control circuit, main circuit and various power devices.And existing welding machine major loop is divided into a plurality of circuit boards, has that production and processing efficiency is low, connect the integrity problems such as unstable between plate.
Utility model content
The purpose of this utility model is exactly in order to address the above problem, and has proposed a kind of miniature welding machine of simple in structure, single circuit plate structure that thermal diffusivity is good.
To achieve these goals, the utility model adopts following technical scheme:
A kind of miniature welding machine of single circuit plate structure, comprise cabinet, on cabinet rear board, blower fan is installed, main circuit of the welding machine and control circuit are integrated on a single circuit plate, on chassis backplane, be fixed with radiator bearer, some independently radiators are fixed on radiator bearer, and described radiator is two rows and distributes on radiator bearer; Between described blower fan and radiator, be provided with for preventing air-supply from the space between blower fan and radiator and arranging up and down the deep bead that flow out in the space between radiator, the wind that blower fan is sent is sent through the air channel being comprised of described radiator, deep bead and single circuit plate.
Described some independently radiators comprise: IGBT radiator one, IGBT radiator two, IGBT radiator three, diode radiating device one and diode radiating device two.
Between described radiator, insulation arranges, and power device is directly fixed on radiator; Described power device is arranged on outside, described air channel.
Described single circuit plate, when being connected with power semiconductor, is provided for dustproof electric crystal seat outward at connection pin.
On described left plate and right plate, be respectively equipped with the shutter for dispelling the heat.
The beneficial effects of the utility model are:
The utility model electric welding machine structure is simple, and dependable performance can effectively improve radiating efficiency; The various components and parts of major loop and control loop are integrated on a single circuit plate, rather than arranged apart, there is the advantages such as production process is few, cost is low, total quality is good.
Unique Duct design, amasss duct cross-section and greatly reduces, and each power semiconductor is fixed on outside air channel, and when power semiconductor is connected with single circuit plate, pin is outside equipped with electric crystal seat, can be effectively dustproof, improve the reliability of semiconductor device.
Independently heat spreader structures design, reasonably utilizes the limited space of cabinet inside, has realized the mutually insulated between radiator, each power component can directly be connected with radiator by seal, has improved thermal conductivity and reliability, simple in structure, easy accessibility, is applicable to various welding machines.
Accompanying drawing explanation
Fig. 1 is the utility model front view;
Fig. 2 is the utility model left view;
Fig. 3 is the utility model perspective view;
Fig. 4 is the utility model electric crystal seat schematic diagram.
Wherein, 1. base plate, 2. front panel, 3. rear board, 4. shutter, 5.IGBT radiator one, 6.IGBT radiator two, 7.IGBT radiator three, 8. diode radiating device one, 9. diode radiating device two, 10. electric crystal seat, 11. blower fans, 12. single circuit plates, 13. deep beads, 14. radiator bearers, 15. handles.
The specific embodiment:
Below in conjunction with accompanying drawing and embodiment, the utility model is described further:
If Fig. 1 is to as shown in Fig. 4, the utility model relates to a kind of miniature welding machine of novel single circuit plate structure.
The utility model single circuit plate structure adopts the design of single circuit plate, the various components and parts that comprise input rectifying filtering, inversion, secondary rectification output, control loop are integrated on a single circuit plate, have the advantages such as production process is less, cost is lower, total quality is better.
Horizontal duct is simple in structure, and dependable performance can effectively improve radiating efficiency.It comprises front panel 2 and the rear board 3 that is arranged at base plate 1 rear and front end, and plate 3 is installed blower fan 11 in the back; On base plate 1, be provided with radiator bearer 14, radiator is two rows and is separately fixed on radiator bearer 14, blower fan top and on arrange between radiator top and between blower fan side and radiator bearer, be provided for respectively preventing air-supply in the space between blower fan 11 and radiator and the deep bead 13 flowing out in the space of arranging up and down between radiator.
The horizontal duct that the wind-force that blower fan 11 produces forms by welding machine enclosure interior is taken away heat.Horizontal duct comprises front panel 2 and the rear board 3 that is arranged at base plate rear and front end, and plate 3 is installed blower fan 14 in the back; On base plate 1, be provided with radiator bearer 18, radiator is two rows and is separately fixed on radiator bearer 18, and fixing radiator, single circuit plate 15 and deep bead 13 (comprising deep bead and side deep bead above) form air channel.Power semiconductor (IGBT and diode) is fixed on outside air channel.Deep bead is connected respectively with upper row's radiator top with blower fan top above, for preventing that air-supply is from the upper space outflow between blower fan 11 and radiator; Side deep bead is connected with radiator bearer with blower fan side respectively, for preventing that air-supply from flowing out from the lateral space between blower fan 11 and radiator and the space of arranging up and down between radiator.Concrete structure as shown in Figure 3.
The heat spreader structures of independently cutting apart, comprises IGBT radiator 1, IGBT radiator 26, IGBT radiator 37, diode radiating device 1 and diode radiating device 29.Described heat spreader structures is that five module radiators are independently placed between radiator bearer 14 and single circuit plate 12, mutually insulated between radiator, and IGBT and diode constant power device are directly fixed on radiator.
When power semiconductor is connected with single circuit plate 12, pin is outside equipped with electric crystal seat 10, can be effectively dustproof, improve the reliability of semiconductor device.
On cabinet front and back panel, be equipped with shutter 4, be conducive to heat and get rid of in time.Welding machine top is provided with the handle 15 of arch, is convenient for carrying.
Although above-mentioned, by reference to the accompanying drawings the specific embodiment of the present utility model is described; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (5)
1. the miniature welding machine of a single circuit plate structure, comprise cabinet, it is characterized in that, on cabinet rear board, blower fan is installed, main circuit of the welding machine and control circuit are integrated on a single circuit plate, on chassis backplane, be fixed with radiator bearer, some independently radiators are fixed on radiator bearer, and described radiator is two rows and distributes on radiator bearer; Between described blower fan and radiator, be provided with for preventing air-supply from the space between blower fan and radiator and arranging up and down the deep bead that flow out in the space between radiator, the wind that blower fan is sent is sent through the air channel being comprised of described radiator, deep bead and single circuit plate.
2. a kind of miniature welding machine with single circuit plate structure as claimed in claim 1, it is characterized in that, described some independently radiators comprise: IGBT radiator one, IGBT radiator two, IGBT radiator three, diode radiating device one and diode radiating device two.
3. the miniature welding machine of a kind of single circuit plate structure as claimed in claim 1, is characterized in that, between described radiator, insulation arranges, and power device is directly fixed on radiator; Described power device is arranged on outside, described air channel.
4. the miniature welding machine of a kind of single circuit plate structure as claimed in claim 1, is characterized in that, described single circuit plate, when being connected with power semiconductor, is provided for dustproof electric crystal seat outward at connection pin.
5. the miniature welding machine of a kind of single circuit plate structure as claimed in claim 1, is characterized in that, is respectively equipped with the shutter for dispelling the heat on described left plate and right plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420220939.4U CN203887401U (en) | 2014-04-30 | 2014-04-30 | Small welding machine of single circuit board structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420220939.4U CN203887401U (en) | 2014-04-30 | 2014-04-30 | Small welding machine of single circuit board structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203887401U true CN203887401U (en) | 2014-10-22 |
Family
ID=51713849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420220939.4U Expired - Lifetime CN203887401U (en) | 2014-04-30 | 2014-04-30 | Small welding machine of single circuit board structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203887401U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975820A (en) * | 2017-03-27 | 2017-07-25 | 朱宣辉 | A kind of three phase mains IGBT single-tube contravariant manual arc welders |
-
2014
- 2014-04-30 CN CN201420220939.4U patent/CN203887401U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975820A (en) * | 2017-03-27 | 2017-07-25 | 朱宣辉 | A kind of three phase mains IGBT single-tube contravariant manual arc welders |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |
|
| CX01 | Expiry of patent term |