CN103394827B - Rectifier filter radiator unit for torch welder power supply - Google Patents
Rectifier filter radiator unit for torch welder power supply Download PDFInfo
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- CN103394827B CN103394827B CN201310301790.2A CN201310301790A CN103394827B CN 103394827 B CN103394827 B CN 103394827B CN 201310301790 A CN201310301790 A CN 201310301790A CN 103394827 B CN103394827 B CN 103394827B
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Abstract
The invention discloses a rectifier filter radiator unit for a torch welder power supply. The rectifier filter radiator unit comprises a circuit board, an electronic unit and a radiating shell. The electronic unit is connected to the circuit board. The radiating shell made of heat conduction material is tightly clamped and fixed to the outer surface of the electronic unit. One end of the radiating shell is provided with a radiating structure exposed to the upper portion of a handle grip of a torch welder. The radiating shell capable of conducting heat is tightly clamped and fixed to the outside of the electronic unit, part of the radiating shell can be exposed to the handle grip of the torch welder, and accordingly the heat generated by the electronic unit hermetically disposed in a handle can be transmitted to the radiating shell and is timely dissipated by the radiating structure exposed on the handle grip, the problem that radiating of the rectifier filter circuit of the torch welder power supply is difficult is solved, and normal operation of the torch welder is guaranteed.
Description
Technical field
The present invention relates to welding machine technical field, particularly a kind of rectifying and wave-filtering radiating subassembly of pistol welding machine electric power.
Background technology
Inversion transformation technique is technology direct current being changed into alternating current, the commutation technique contrary with inversion transformation technique is then change alternating current into direct current, and welding machine inversion first must prepare dc source, therefore when welding machine electric power adopts inversion transformation technique, current rectifying and wave filtering circuit must be set simultaneously, rectifying and wave-filtering is carried out to input voltage, to obtain direct current.
More heat can be produced during power supply rectification filter circuit work, for ensureing the reliably working of rectifier bridge in current rectifying and wave filtering circuit and capacitor, need to dispel the heat to power supply rectification filter circuit, for the welder equipment that volume is larger, can rectifier bridge be arranged in the air channel of welder equipment with capacitor etc. together with other power devices, by air channel, heat is shed in time, and for the pistol welding machine of small volume, rectifier bridge and capacitor cannot be integrally provided in the air channel of pistol welding machine inside, therefore, there is no reliable sinking path, after heat accumulation, the device in power supply rectification filter circuit will be burnt out, have impact on the trouble free service of pistol welding machine.
In sum, how solving the heat dissipation problem of the current rectifying and wave filtering circuit of pistol welding machine electric power, is those skilled in the art's problem demanding prompt solutions.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of rectifying and wave-filtering radiating subassembly of pistol welding machine electric power, to be distributed by the heat that power supply rectification filter circuit produces in time, ensure the normal work of pistol welding machine.
For achieving the above object, the invention provides following technical scheme:
A rectifying and wave-filtering radiating subassembly for pistol welding machine electric power, comprising:
Circuit board;
Electronic device, described electronic device is connected on described circuit board;
Radiating shell, described radiating shell is Heat Conduction Material, and described radiating shell is close to the outer surface being clamped on described electronic device, and one end of described radiating shell is provided with hand for being exposed to pistol welding machine the radiator structure on tiger's jaw top.
Preferably, in above-mentioned rectifying and wave-filtering radiating subassembly, described electronic device comprises rectifier bridge and filter capacitor, and described radiating shell comprises the first radiating shell and the second radiating shell, and described first radiating shell and described second radiating shell splicing are coated on the outer wall of described filter capacitor.
Preferably, in above-mentioned rectifying and wave-filtering radiating subassembly, described first radiating shell and described second radiating shell are symmetrical structure.
Preferably, in above-mentioned rectifying and wave-filtering radiating subassembly, described radiating shell also comprises the 3rd radiating shell, and described 3rd radiating shell is connected between described first radiating shell and described second radiating shell, and is adjacent to described rectifier bridge.
Preferably, in above-mentioned rectifying and wave-filtering radiating subassembly, described first radiating shell is threaded connection part with described second radiating shell and is fixedly connected with, and the described threaded connector of part runs through described 3rd radiating shell of connection.
Preferably, in above-mentioned rectifying and wave-filtering radiating subassembly, described threaded connector is screw, and the number of described screw is at least three, is at least two through the screw in described 3rd radiating shell.
Preferably, in above-mentioned rectifying and wave-filtering radiating subassembly, described radiator structure is the radiating fin multiple arranged in parallel be spliced to form by described first radiating shell and described second radiating shell.
Preferably, in above-mentioned rectifying and wave-filtering radiating subassembly, the gas channel formed between adjacent two described radiating fins can be parallel with the direction of ventilation of the blower fan of pistol welding machine.
Preferably, in above-mentioned rectifying and wave-filtering radiating subassembly, described filter capacitor is cylindrical structural, and described first radiating shell docks with described second radiating shell and forms clamping hole, and described clamping hole is identical with the diameter of described filter capacitor.
Preferably, in above-mentioned rectifying and wave-filtering radiating subassembly, the number in described filter capacitor and described clamping hole is equal, and is at least two.
Compared with prior art, the invention has the beneficial effects as follows:
The rectifying and wave-filtering radiating subassembly of pistol welding machine electric power provided by the invention, owing to being close in the outside of electronic device, clamping have can the radiating shell of heat conduction, part radiating shell can be exposed to the hand of pistol welding machine above tiger's jaw, therefore, be sealed in hand and the heat that interior electronic device produces can be passed to radiating shell, and by being exposed to hand, heat is distributed by radiator structure above tiger's jaw in time, thus solve the problem of the heat radiation difficulty of the current rectifying and wave filtering circuit of pistol welding machine electric power, ensure that pistol welding machine normally works.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or scheme of the prior art, be briefly described to describing the required accompanying drawing used in embodiment or prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those skilled in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the rectifying and wave-filtering radiating subassembly of a kind of pistol welding machine electric power that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the right view of Fig. 1;
The structural representation of the first radiating shell in the rectifying and wave-filtering radiating subassembly of a kind of pistol welding machine electric power that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 is the right view of Fig. 4;
Fig. 6 is the sectional drawing in the A-A cross section of Fig. 5.
In above-mentioned Fig. 1-Fig. 6, circuit board 1, electronic device 2, rectifier bridge 21, filter capacitor 22, radiating shell 3, first radiating shell 31, second radiating shell 32, the 3rd radiating shell 33, radiator structure 34, clamping hole 35, NTC thermistor 4, threaded connector 5.
Detailed description of the invention
The invention provides a kind of rectifying and wave-filtering radiating subassembly of pistol welding machine electric power, can in time the heat that power supply rectification filter circuit produces be distributed, ensure the normal work of the safety of pistol welding machine.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on embodiments of the invention, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belong to the scope of protection of the invention.
Please refer to Fig. 1-Fig. 6, the structural representation of the rectifying and wave-filtering radiating subassembly of a kind of pistol welding machine electric power that Fig. 1 provides for the embodiment of the present invention; Fig. 2 is the left view of Fig. 1; Fig. 3 is the right view of Fig. 1; The structural representation of the first radiating shell in the rectifying and wave-filtering radiating subassembly of a kind of pistol welding machine electric power that Fig. 4 provides for the embodiment of the present invention; Fig. 5 is the right view of Fig. 4; Fig. 6 is the sectional drawing in the A-A cross section of Fig. 5.
Embodiments provide a kind of rectifying and wave-filtering radiating subassembly of pistol welding machine electric power, hereinafter referred to as rectifying and wave-filtering radiating subassembly, as shown in Fig. 1-Fig. 3, comprise circuit board 1, electronic device 2 and radiating shell 3; Wherein, circuit board 1 is generally pcb board (printed circuit board (PCB)), is the supporter of electronic device 2; Electronic device 2 is fixing on the circuit card 1, is communicated with by each electronic device 2 by the circuit of circuit board 1; Radiating shell 3 is Heat Conduction Material, it can be the material that the thermal conductivity such as aluminium, copper is good, radiating shell 3 is fixing on the circuit card 1, and radiating shell 3 is close to the outer surface being clamped on electronic device 2, radiating shell 3 and electronic device 2 realize contacting well, and one end of radiating shell 3 is provided with the hand for being exposed to pistol welding machine the radiator structure 34 on tiger's jaw top, the heat produced by whole current rectifying and wave filtering circuit by radiator structure 34 is distributed from the hand handle of pistol welding machine.
The operation principle of above-mentioned rectifying and wave-filtering radiating subassembly is: because electronic device 2 is generally all arranged on the hand of pistol welding machine inner, the heat produced in operation is difficult to discharge, therefore, the radiating shell 3 with good heat conductive performance is coated with at the outer surface of electronic device 2, radiating shell 3 fully contacts with the outer surface of electronic device 2, heat can be transmitted to fast on radiating shell 3, finally by the hand that can be exposed to pistol welding machine, heat is distributed by the radiator structure 34 on tiger's jaw top, thus solve the difficult problem of current rectifying and wave filtering circuit heat radiation, thus ensured the normal work of the safety of pistol welding machine.
Further optimization rectifying and wave-filtering radiating subassembly, in the invention process, the electronic device 2 of composition current rectifying and wave filtering circuit generally comprises rectifier bridge 21, filter capacitor 22 and NTC thermistor 4 etc., NTC thermistor 4 is also called negative tempperature coefficient thermistor, namely resistance value raises with temperature and reduces, the charging current of electric capacity is reduced, to reduce the impact to electrical network when being used for powering on.Radiating shell 3 is spliced by the first radiating shell 31 is relative with the second radiating shell 32, after first radiating shell 31 and the second radiating shell 32 have spliced, by closely coated for the outer wall of filter capacitor 22, thus filter capacitor 22 is contacted with the seamless unoccupied place of radiating shell 3, the heat that filter capacitor 22 can be produced passes to radiating shell 3 in time, is discharged by radiating shell 3.
As optimization, the symmetrical configuration of the first radiating shell 31 and the second radiating shell 32, conveniently designs processing; Certainly, the structure of the first radiating shell 31 and the second radiating shell 32 can also be asymmetric, if two radiating shells can be stitched together and by filter capacitor 22 closely coated just can, be not specifically limited at this; Except adopting splicing construction, radiating shell 3 can also be integrative-structure, is enclosed within radiating shell 3 by filter capacitor 22, realizes thermal contact conductance.
In order to carry out heat conduction and heat radiation better, radiating shell 3 in the embodiment of the present invention also comprises the 3rd radiating shell 33,3rd radiating shell 33 is between the first radiating shell 31 and the second radiating shell 32, and be connected with the first radiating shell 31 and the second radiating shell 32, the 3rd radiating shell 33 is close to the outer surface of rectifier bridge 21; Like this, the heat that rectifier bridge 21 produces can pass to the 3rd radiating shell 33, then passes to the first and second radiating shells, eventually through the hand being exposed to pistol welding machine, the radiator structure 34 on tiger's jaw top is distributed, therefore, the radiating efficiency of radiating shell 3 is added.
In the embodiment of the present invention, first radiating shell 31 is threaded connection part 5 with the second radiating shell 32 and is fixedly connected with, and a part of threaded connector 5 runs through connection the 3rd radiating shell 33 while connection first radiating shell 31 and the second radiating shell 32, namely the first radiating shell 31 and the second radiating shell 32 splice well, now, 3rd radiating shell 33 is positioned between the two, some threaded connectors 5 are tightened in the place contacted separately at the first radiating shell 31 and the second radiating shell 32, some threaded connectors 5 are tightened equally in the place that three radiating shells all contact, a kind of concrete connected mode of the present embodiment as seen from Figure 3, certain link position is not limited to the scheme that the present embodiment provides surely.
As optimization, threaded connector 5 is screw, more preferably, screw adopts M3 screw, the number of screw is at least three, number for the screw running through the 3rd radiating shell 33 is at least two, and the screw in the present embodiment is specially three, wherein has two screws through in the 3rd radiating shell 33; Certainly, the size of screw determines according to the size of the rectifying and wave-filtering radiating subassembly of reality; In addition, threaded connector 5 can also be screw or bolt etc., is not specifically limited at this.
In the embodiment of the present invention, radiator structure 34 on radiating shell 3 is spliced by the head-bent part of the first radiating shell 31 and the second radiating shell 32, this sweep is multiple radiating fins arranged in parallel, namely the platy structure be parallel to each other, radiating fin and radiating shell 3 are structure as a whole, radiating fin is exposed to the top of hand tiger's jaw of pistol welding machine, adds area of dissipation; Certainly, radiating fin also can not parallelly be arranged.
As optimization, gas channel is formed between adjacent two radiating fins, after installing rectifying and wave-filtering radiating subassembly, the conducting direction of gas channel can be parallel with the direction of ventilation of the blower fan of pistol welding machine, as shown in Figure 2 and Figure 5, the direction of arrow in Fig. 2 is exactly the direction of ventilation of blower fan, the object of such setting is to reduce the circulating resistance of air-flow at radiating fin place, pass through with can making airflow smooth, heat is taken away in time, increase the contact area of air-flow and radiating fin simultaneously, make heat radiation faster.As can be seen from Fig. 1-Fig. 6; radiating fin crosses wind face and electric capacity axis has an angle; the overall lateral surface perpendicular to the first radiating shell 31 and the second radiating shell 32 of radiating fin; certainly; can also be parallel to the first and second radiating shells to arrange; as long as the structure of thermolysis can be played, all belong to protection scope of the present invention.
Filter capacitor 22 in the embodiment of the present invention is cylindrical structural, correspondingly, after first radiating shell 31 and the second radiating shell 32 splice, form columniform clamping hole 35, the diameter in clamping hole 35 is identical with the diameter of filter capacitor 22, and just that filter capacitor 22 is closely clamping in clamping hole 35, the first radiating shell 31 and the second radiating shell 32 have clamping hole 35 structure of semicircle respectively, like this, filter capacitor 22 just can carry out thermal contact conductance with radiating shell 3; If filter capacitor 22 is not cylindrical structural, then correspondingly, the shape in clamping hole 35 and the profile of filter capacitor 22 are coincide, thus the close contact both realizing, be conducive to quick heat radiating.
Further, the number in filter capacitor 22 and clamping hole 35 is equal, and being at least two, the number in the clamping hole 35 in the present embodiment is preferably three, certainly, according to the need of work of the current rectifying and wave filtering circuit of reality, the number of corresponding filter capacitor 22 is set, can is one, two, or more, correspondingly, the quantity in clamping hole 35, depending on filter capacitor 22, should ensure that the quantity in clamping hole 35 is less than or equal to the quantity of filter capacitor 22.
It is fixing on the circuit card 1 that radiating shell 3 in the embodiment of the present invention is threaded connection part, preferably adopts M2 screw to fix, and fix as a whole by rectifier bridge 21 and filter capacitor 22.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. a rectifying and wave-filtering radiating subassembly for pistol welding machine electric power, is characterized in that, comprising:
Circuit board (1):
Electronic device (2), described electronic device (2) is connected on described circuit board (1), and described electronic device (2) comprises rectifier bridge (21) and filter capacitor (22);
Radiating shell (3), described radiating shell (3) is Heat Conduction Material, described radiating shell (3) is close to the outer surface being clamped on described electronic device (2), and one end of described radiating shell (3) is provided with hand for being exposed to pistol welding machine outside and be positioned at the radiator structure (34) on the tiger's jaw top of described hand handle, described radiating shell (3) comprises the first radiating shell (31) and the second radiating shell (32), described first radiating shell (31) and described second radiating shell (32) splicing are coated on the outer wall of described filter capacitor (22).
2. rectifying and wave-filtering radiating subassembly according to claim 1, is characterized in that, described first radiating shell (31) and described second radiating shell (32) are symmetrical structure.
3. rectifying and wave-filtering radiating subassembly according to claim 1, it is characterized in that, described radiating shell (3) also comprises the 3rd radiating shell (33), described 3rd radiating shell (33) is connected between described first radiating shell (31) and described second radiating shell (32), and is adjacent to described rectifier bridge (21).
4. rectifying and wave-filtering radiating subassembly according to claim 3, it is characterized in that, described first radiating shell (31) is threaded connection part (5) with described second radiating shell (32) and is fixedly connected with, and the described threaded connector of part (5) runs through described 3rd radiating shell (33) of connection.
5. rectifying and wave-filtering radiating subassembly according to claim 4, it is characterized in that, described threaded connector (5) is screw, and the number of described screw is at least three, is at least two through the screw in described 3rd radiating shell (33).
6. rectifying and wave-filtering radiating subassembly according to claim 1, it is characterized in that, described radiator structure (34) is the radiating fin multiple arranged in parallel be spliced to form by described first radiating shell (31) and described second radiating shell (32).
7. rectifying and wave-filtering radiating subassembly according to claim 6, is characterized in that, the gas channel formed between adjacent two described radiating fins can be parallel with the direction of ventilation of the blower fan of pistol welding machine.
8. rectifying and wave-filtering radiating subassembly according to claim 1, it is characterized in that, described filter capacitor (22) is cylindrical structural, described first radiating shell (31) is docked with described second radiating shell (32) and is formed clamping hole (35), and described clamping hole (35) is identical with the diameter of described filter capacitor (22).
9. rectifying and wave-filtering radiating subassembly according to claim 8, is characterized in that, the number in described filter capacitor (22) and described clamping hole (35) is equal, and is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301790.2A CN103394827B (en) | 2013-07-17 | 2013-07-17 | Rectifier filter radiator unit for torch welder power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310301790.2A CN103394827B (en) | 2013-07-17 | 2013-07-17 | Rectifier filter radiator unit for torch welder power supply |
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| Publication Number | Publication Date |
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| CN103394827A CN103394827A (en) | 2013-11-20 |
| CN103394827B true CN103394827B (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310301790.2A Active CN103394827B (en) | 2013-07-17 | 2013-07-17 | Rectifier filter radiator unit for torch welder power supply |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106347155B (en) * | 2016-09-14 | 2023-08-29 | 深圳市沃尔核材股份有限公司 | Charging gun with automatic heat dissipation function |
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| CN103143810A (en) * | 2013-03-15 | 2013-06-12 | 温州市小港电气有限公司 | Handheld gun-type electric arc welder |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201327617Y (en) * | 2008-12-01 | 2009-10-14 | 联想(北京)有限公司 | Computer system and CPU radiator thereof |
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| CN2478166Y (en) * | 2001-04-16 | 2002-02-20 | 鼎沛股份有限公司 | Radiator structure |
| JP2006167806A (en) * | 2004-12-13 | 2006-06-29 | Lincoln Global Inc | Power module cartridge |
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