CN2741707Y - Gas protective welding power source - Google Patents
Gas protective welding power source Download PDFInfo
- Publication number
- CN2741707Y CN2741707Y CN 200420118013 CN200420118013U CN2741707Y CN 2741707 Y CN2741707 Y CN 2741707Y CN 200420118013 CN200420118013 CN 200420118013 CN 200420118013 U CN200420118013 U CN 200420118013U CN 2741707 Y CN2741707 Y CN 2741707Y
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- Prior art keywords
- power supply
- transformer
- gas
- circuit
- framework
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- Expired - Lifetime
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Abstract
The utility model discloses a gas protective welding power source, comprising an outer casing and verious elements which are arranged inside the outer casing to form a power circuit. The outer casing comprises a frame, and the bottom of the frame is provided with a bottom board. The circumference and the top part of the frame are provided with openable cover boards. An air channel is formed between a front and a back cover boards which are respectively provided with an air intake and an air outlet. The elements of the power circuit are fixed inside the air channel and electrically connected with each other. The inner part of the air chaneel is provided with a blower at the position of the air intake. The transformers of the elements of the power circuit are fixed on the bottom board inside the air channel adjacent to the inner side of the blower. The heat produced by the transformers during operation is carried away directly by the cold air entering the air intake, in order to ensure the normal work of the transformers and prolong the service life of the gas protective welding power source.
Description
Technical field
The utility model relates to a kind of gas and protects weldering power supply, especially a kind of gas shielded welding machine power supply feeding mechanism that can effectively solve heat dissipation problem.
Background technology
In welding procedure, consumable electrode gas is protected weldering and is compared with manual electric arc welding, has advantages such as welding quality is good, welding cost is low, welding surroundings improvement, and development in recent years is very fast, and the trend that replaces manual electric arc welding is arranged greatly.And gas guarantor weldering power supply is the important component part of gas-shielded welder, is used to detect, control the duty of gas-shielded welder, and suitable power supply is provided, and the quality of its performance directly affects the quality of welding.Therefore gas is protected the also silicon controlled rectifier power supply from using at first of weldering power supply, develops into the power supply of present widely used employing rectification-direct current-switch-inversion-AC-DC principle design.This power supply includes rectification circuit; under-voltage protecting circuit; the equipment overheat holding circuit; the voltage sensor feedback circuit; central control circuit etc.; as disclosed in No. the 99201357.7th, the Chinese patent; components and parts in these circuit reasonably are arranged in the shell body; in order to save the space of shell body; generally the transformer in the circuit is placed on the air outlet place in shell body inner ventilation road; the wind that will cause being used for the transformer heat radiation so has not been the cold air that has just entered from air inlet; but mix the hot-air that has other components and parts to give out heat; this radiating effect to transformer is not good; and transformer is the components and parts that caloric value is the highest and must dispel the heat in the whole power supply; because of the effect of transformer directly has influence on the result of use of whole power supply, therefore there is the imperfect problem of transformer radiating effect in existing power supply.In addition, in order to make all air can both pass through transformer,, and make the air that just enters enter the space that the radiator both sides are provided with the circuit elements device from air inlet so that take away more heat transfer, to cause the part dust also to enter in this space that circuit elements device is set, influence the service life of components and parts.
For this reason, creator in the utility model relies on it to be engaged in the experience and the practice of relevant industries for many years, and, create a kind of transformer that can make finally and fully dispel the heat, and can make components and parts be in relatively clean space and can increase the gas in service life and protect the weldering power supply through concentrating on studies and developing.
Summary of the invention
Main purpose of the present utility model is to provide a kind of gas to protect the weldering power supply, and this gas is protected the weldering power supply and can fully be cooled off transformer, guarantees the operate as normal of transformer.
Another purpose of the present utility model is to provide a kind of gas to protect the weldering power supply, and this gas is protected the weldering power supply can guarantee that the circuit elements device is in the space of a cleaning, is not subjected to the pollution of dust, has the function that increases service life.
A purpose more of the present utility model is to provide a kind of gas to protect the weldering power supply, and this gas is protected the weldering power supply can avoid external interference, guarantees the operate as normal of transformer.
Gas in the utility model is protected the weldering power supply and is mainly included shell body and be located at inner each components and parts that constitutes power circuit of this shell body, described shell body includes a framework, be provided with a base plate in the bottom of described framework, around this framework, be provided with openable cover plate with the top, between front and rear cover plate, form a ventilating duct, and on described front and rear cover plate, be respectively arranged with an air inlet and an air outlet, the components and parts of described circuit fixedly are located in the described ventilating duct, and be electrically connected mutually, being positioned at the air inlet place in described ventilating duct is provided with a blower fan in addition, it is characterized in that: the transformer in each components and parts of described circuit fixedly is located on the interior base plate of described ventilating duct, and is adjacent to the inboard of described blower fan.
Described framework is divided into two-layer accommodation space up and down by a dividing plate, and described transformer fixedly is located in the lower layer space.
Described transformer respectively is provided with deep bead in its both sides.
Described transformer is equipped with at least one magnet ring on its output line.
Printed circuit board (PCB) in the described circuit elements device is fixed in the upper strata accommodation space that described framework forms by dividing plate by connector.
Gas in the utility model is protected the structure distribution of weldering power supply by framework, realize the reasonable Arrangement of position resolver, make the cold wind at air inlet place directly take away the heat that transformer produces, effectively reduce the transformer temperature, and further by means of the interference of deep bead, make through the wind behind the transformer and enter radiator, take away and be fixed on the radiator sidewall heat that the road components and parts are distributed that powers on, circuit elements device on the radiator sidewall is in the environment of a cleaning, prolongs the service life of circuit elements device.
In addition, the gas in the utility model is protected the weldering power supply and is nested with the electromagnetic interference that the external world was avoided or reduced to magnetic ring by the output at transformer, effectively avoids other circuit elements device to be subjected to the interference in magnetic field.
Description of drawings
Fig. 1 is that the master of power supply looks schematic diagram in the utility model;
Fig. 2 is the schematic rear view of power supply in the utility model;
Fig. 3 is that power supply goes schematic side view behind the side cover in the utility model;
Fig. 4 is the front elevational schematic that power supply removes opposite side behind the side cover in the utility model;
Fig. 5 is the circuit theory diagrams of power supply in the utility model;
Fig. 6 is along the cross-sectional schematic of A-A line among Fig. 1;
Fig. 7 is the schematic side view of the radiator in the utility model.
The specific embodiment
The specific embodiment of the utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figures 1 to 4; gas during this is practical is protected the weldering power supply and is included a shell body and the power circuit that is located at shell body inside; wherein; power circuit has adopted the principle of rectification-direct current-switch-inversion-interchange-direct current; include rectification circuit, under-voltage protecting circuit, equipment overheat holding circuit; voltage sensor feedback circuit, central control circuit etc.; as shown in Figure 5; the concrete annexation of each circuit and each components and parts in the circuit all adopt prior art, therefore its operation principle and circuit are described in detail no longer separately.
As Fig. 3, Fig. 4 and shown in Figure 6, shell body includes a framework 1, the bottom of this framework 1 is fixed with a base plate by connector, be provided with dismountable cover plate with the top by connector all around, portion is divided into two-layer up and down by the dividing plate 2 that is positioned at the middle and upper part within it, in framework 1, form two- layer accommodation space 7 and 8 up and down by means of dividing plate 2, cover plate and base plate, wherein in upper strata accommodation space 7, be provided with printed circuit board (PCB) 16 and the lower components and parts of part heat production, and in lower layer space 8, be provided with the higher circuit elements device of heat production.Be provided with shutter 9 at front and rear cover plate 3,4 at the position that is positioned at lower floor's accommodation space 8, form air inlet 10 and air outlet 11 respectively, thereby form a ventilating duct by the lower layer space 8 of the air inlet on the front shroud 3 10, framework 1 and the air outlet 11 on the back shroud 3, as shown in Figure 6, the direction of wind flow shown in this figure.
As Fig. 3, Fig. 4 and shown in Figure 6, be positioned at ventilating duct in the inboard of air inlet 10 and be set with a blower fan 12 by connector, and on the base plate 5 of blower fan 12 inboards, be fixed with transformer 13 in the power circuit, make transformer 13 be positioned at air inlet 10 places, thereby make by blower fan 12 and drive the heat that the cold wind that enters is directly taken away transformer 13 generations, this transformer 13 is connected with circuit elements device in being located at upper and lower layer accommodation space 7 and 8, because this is connected to prior art, therefore no longer describe in detail.Respectively be fixed with in the both sides of transformer 13 simultaneously and be the deep bead 14 that certain inclination angle is provided with, this two deep bead 14 forms trumpet-shaped opening, and opening is towards transformer 13 and blower fan 12, rear side at deep bead 14 is provided with two opposed radiators 15, as shown in Figure 6 and Figure 7, this radiator 15 is for to be made by the higher metal material of thermal conductivity factor, and wherein a side is a flat board, be used for fixing the circuit elements device, opposite side has a plurality of fins that be arranged in parallel to form ventilating duct.But because the slit that between deep bead 14 and radiator 15, does not have air feed to pass through, and under effect in conjunction with the sidewall cover plate, also approximate sealing is provided with between deep bead 14 and the sidewall cover plate, therefore the circuit elements device that is fixed on the radiator sidewall is in the environment of a cleaning, make and enter the power supply dust in air and do not have influence on this and be located at components and parts on the radiator 15, prolong the service life of each components and parts, simultaneously, under the effect of blower fan 12, the air that enters power supply is discharged from air outlet 11 by ventilating duct, and dust in air is also directly discharged by ventilating duct, can not influence the circuit elements device that is located in the upper strata accommodation space 7, prolong the service life of power supply.
As shown in Figure 3, the gas in the utility model is protected the weldering power supply and be equipped with magnet ring on the output line of transformer, utilizes this magnet ring to eliminate and reduce the electromagnetic interference in the external world, further prolongs the service life of power supply.
Gas in the utility model is protected the weldering power supply because after the position of transformer changed, can make cold air directly take away the heat that transformer work is produced, effectively to the transformer processing of lowering the temperature, guarantee the operate as normal of transformer, utilize the reasonable Arrangement of deep bead simultaneously, the circuit elements device is in the environment of a cleaning, reduces the pollution that the circuit elements device is subjected to dust, prolong its service life.
Claims (5)
1. a gas is protected the weldering power supply, include shell body and be located at inner each components and parts that constitutes power circuit of this shell body, described shell body includes a framework, be provided with a base plate in the bottom of described framework, around this framework, be provided with openable cover plate with the top, between front and rear cover plate, form a ventilating duct, and on described front and rear cover plate, be respectively arranged with an air inlet and an air outlet, the components and parts of described circuit fixedly are located in the described ventilating duct, and be electrically connected mutually, being positioned at the air inlet place in described ventilating duct is provided with a blower fan in addition, it is characterized in that: the transformer in each components and parts of described circuit fixedly is located on the interior base plate of described ventilating duct, and is adjacent to the inboard of described blower fan.
2. protect the weldering power supply according to the gas described in the claim 1, it is characterized in that: described framework is divided into two-layer accommodation space up and down by a dividing plate, and described transformer fixedly is located in the lower layer space.
3. protect the weldering power supply according to the gas described in the claim 1, it is characterized in that: described transformer respectively is provided with deep bead in its both sides.
4. protect the weldering power supply according to the gas described in the claim 1, it is characterized in that: described transformer is equipped with at least one magnet ring on its output line.
5. protect the weldering power supply according to the gas described in the claim 1, it is characterized in that: the printed circuit board (PCB) in the described circuit elements device is fixed in the upper strata accommodation space that described framework forms by dividing plate by connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420118013 CN2741707Y (en) | 2004-10-25 | 2004-10-25 | Gas protective welding power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420118013 CN2741707Y (en) | 2004-10-25 | 2004-10-25 | Gas protective welding power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2741707Y true CN2741707Y (en) | 2005-11-23 |
Family
ID=35477181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420118013 Expired - Lifetime CN2741707Y (en) | 2004-10-25 | 2004-10-25 | Gas protective welding power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2741707Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8253069B2 (en) | 2010-03-15 | 2012-08-28 | Lincoln Global, Inc. | Slideable welding power source housing assembly |
-
2004
- 2004-10-25 CN CN 200420118013 patent/CN2741707Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8253069B2 (en) | 2010-03-15 | 2012-08-28 | Lincoln Global, Inc. | Slideable welding power source housing assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141025 Granted publication date: 20051123 |