CN201167281Y

CN201167281Y - Integral structure for an inversion welding power supply

Info

Publication number: CN201167281Y
Application number: CNU2007200048379U
Authority: CN
Inventors: 张宝民
Original assignee: Tangshan Matsushita Industrial Equipment Co Ltd
Current assignee: Panasonic Welding Systems Tangshan Co Ltd
Priority date: 2007-02-09
Filing date: 2007-02-09
Publication date: 2008-12-17
Anticipated expiration: 2017-02-09

Abstract

An overall structure of an inverter welding power source comprises a front face plate, a rear face plate, a left face plate, a right face plate, a pedestal, and a cover plate; wherein a sealed compartment is formed on the front face plate, and a circuit board is installed on the inner side of the compartment opposite to the front face plate. The overall structure is characterized in that the overall structure has an upper layer, a middle layer and a lower layer, which are partitioned by two partitioning plates (an upper partitioning plate and a lower partitioning plate), the two partitioning plates are connected with the rear face plate and the wall of the compartment, a cooling fan is arranged in the upper layer for blowing downwards, an air duct inlet port is arranged on the upper partitioning plate, and a shutter is arranged on each side plate (a left side plate and a right side plate) corresponding to the upper layer; the middle layer is a sealed layer for installing a main power device, the rear face plate, the wall of the compartment and the left and the right side plates corresponding to the middle layer are sealed, two heat radiating plates connected with the upper and the lower partitioning plates, and a front connecting plate and a rear connecting plate together form a sealed chamber positioned in the middle layer.

Description

A kind of overall structure of inversion welding source

Technical field

The utility model relates to a kind of overall structure of inversion welding source.

Background technology

When the inversion welding source lowered in field environment was used, dust, salt fog, adverse circumstances such as drench with rain were easy to cause power supply to damage, and especially main power device etc. is to the easier damage of breaking down of the higher portion's product of environmental requirement.The inversion welding source type of cooling in the past is the air channel, front and back or goes up lower air duct, as Fig. 1 is the situation in air channel, front and back, forward and backward plate has shutter, fan in the back, main power device and main transformer, reactor etc. are in the air channel, dust, salt fog, moisture etc. are easy to amass on the surface like this, cause portion's product to damage; Though Fig. 2 is the situation of last lower air duct, the main power device blow-by so still be subjected to the erosion of dust, salt fog, moisture etc., causes portion's product to damage.In a word, in the past in the structure of power supply, need radiating part product such as main power device and main transformer, reactor all place the air channel, when the serious environment of dust uses, the main power device dust is piled up serious, cause the discharge of charged position, the power device scaling loss is when salt mist environment uses, seriously corroded, cause electrode loose contact even open circuit, cause the parts scaling loss, or wet environment is when using, the parts insulate reduction causes parts scaling loss or the like, so not only damage the part replacement trouble, and maintenance cost is higher, all brings for user and manufacturer than burden.This power supply architecture is effectively avoided the damage of the main power device that adverse circumstances cause, and prolongs the useful life of the source of welding current.

The utility model content

The purpose of this utility model solves the above problems exactly, and the main power device of rapid wear is placed sealant, and the intrusion of avoiding dust under the adverse circumstances, salt fog and drenching with rain prolongs useful life of power device.

Source of welding current structure generally comprises front and back panel, left side plate, base and cover plate, is formed with an enclosed compartment on the front panel, mounting circuit boards on the compartment walls inboard relative with front panel.For achieving the above object, the utility model adopts the upper, middle and lower three-decker, and special-purpose air channel both had been beneficial to radiating part product efficiently radiates heat, the influence that solves adverse circumstances again.Separated by two dividing plates for these three layers, these two dividing plates are connected on rear board and the compartment walls, and cooling fan places the upper strata, and the wind direction is blown from the top down, and upper spacer is provided with the air channel air inlet, and the plate portion corresponding with the upper strata has shutter; The intermediate layer is the main power device sealant, the rear board corresponding with the intermediate layer, compartment walls and left and right side board are divided into sealing, and the common enclosed cavity that is arranged in the intermediate layer of forming of the two module radiator plates that link to each other with upper and lower dividing plate and forward and backward two connecting plates, this chamber is inner as the air channel that communicates with levels, wherein, main power device is installed on the heat-radiator plate outer surface, and space, main power device place is the independent sealed space with respect to air channel and power supply architecture outside; Main transformer and reactor are located in the lower floor, and lower clapboard is provided with ducting outlet, and plate portion corresponding with lower floor and base all have exhaust vent, take away the heat of main transformer and reactor.

Description of drawings

Below in conjunction with drawings and Examples the utility model is elaborated:

Fig. 1 is air channel figure before and after the power supply in the past;

Fig. 2 is lower air duct figure on the power supply in the past;

Fig. 3 a and 3b are respectively air channel of the present utility model schematic diagram and three-layered node composition, and its cover plate and side plate are removed, and in Fig. 3 b, 1 is fan, and 2 is upper spacer, and 3 is lower clapboard; Fig. 3 c is the cutaway view of intermediate seal layer, and wherein, 4 is left plate, and 5 is right plate, and 6 is front panel, and 7 is rear board, and 8 is the left side radiator, and 9 is the right side radiator, and 10 is preceding connecting plate, and 11 is the back connecting plate, and 12 is compartment;

Fig. 4 a and 4b are respectively the structure charts in the anti-rain side plate of the present utility model inboard and the outside, and among Fig. 4 a, A is the anti-baffle plate A unit that drenches, and B is for preventing drenching baffle plate B unit;

Fig. 5 is an anti-rain side plate key diagram of the present utility model, is added with the anti-baffle plate that drenches in the side plate inboard, and wherein, 13 are the anti-baffle plate that drenches;

Fig. 6 is traditional side plate key diagram.

Embodiment

Referring to Fig. 3 a and 3b, side plate and cover plate all are removed in the drawings, so that be more clearly visible internal structure.Inverter overall structure of the present utility model comprises front and back panel, left side plate, base and cover plate, is formed with an enclosed compartment on the front panel, mounting circuit boards on the compartment walls inboard relative with front panel.According to the utility model, this overall structure is three layers of design.Separated by two dividing plates for these three layers, these two dividing plates are connected on rear board and the compartment walls, and wherein, fan places the upper strata, and fan is the form of drying from top to bottom, have shutter corresponding to the plate portion on upper strata, and upper spacer is provided with the air channel air inlet.The intermediate layer is the main power device sealant, and side plate corresponding with it, compartment walls and faceplate part seal, so the sealing layer has constituted a closed system.Also be formed with a chamber in the sealing layer, its top communicates with the upper strata, and the bottom communicates with lower floor.This chamber is inner as the air channel that is communicated with the upper and lower.Shown in Fig. 3 c, the sidewall in this chamber is to be made of jointly the two module radiator plates that link to each other with dividing plate and two connecting plates.Heat-radiator plate, connecting plate are connected by screw with dividing plate, and their joint portion can be added with encapsulant, so that air channel and sealant are isolated.As the alternative that screw connects, also can adopt welding or alternate manner.In addition, as selection, the sidewall in this chamber also can be made of four module radiator plates, perhaps is made of jointly two module radiator plates and rear board and compartment walls, perhaps is made of jointly two module radiator plates, connecting plate and rear board.Heat-radiator plate can be zigzag towards the surface of inboard, chamber, perhaps can be that other helps the structure that dispels the heat; The outer surface of heat-radiator plate is flat.Shown in Fig. 3 c, main power device is installed on the heat-radiator plate outer surface as left and right sides sidewall.This chamber self has constituted a closed system, and wind from the air channel process of this inside, chamber, is taken away heat from the top down, realizes the power device efficiently radiates heat.Simultaneously power device space of living in isolates with the air channel, and is seal cavity, and the intrusion of humidity such as avoid dust accumulation, the salt air corrosion that adverse circumstances cause and drench with rain is for main power device provides reliable operational environment.Main transformer and reactor are in lower floor, and lower clapboard is provided with the air channel air outlet so that this lower floor communicates with the air channel, and the plate portion corresponding with lower floor has elliptical aperture, and base also has ventilation hole, effectively the heat of main transformer and reactor are taken away.Total makes that power device space of living in is a sealed environment, and rational air channel structure is arranged, and has both effectively protected power device, has taken away the heat of heat generating part product again.

Referring to Fig. 4 a and 4b, side plate top is the fresh air inlet of structure upper strata correspondence therewith, and the bottom is an elliptical aperture, and the air-out effective area is big.In addition, for reaching the IP23 requirement, preventing to drench with rain enters rainwater, and the side plate inboard increases the anti-baffle plate that drenches, and anti-pouring baffle plate is spoted weld on the side plate or with screw to be connected on the side plate.Selectively, anti-pouring baffle plate and side plate are structure as a whole.Anti-structure of drenching baffle plate can be two cellular constructions as shown in the figure, maybe can be a cellular construction, and perhaps the increase according to side plate practical application size is the anti-baffle arrangement that drenches of multiple unit.Fig. 5 is an anti-rain side plate key diagram, after rainwater is entered by elliptical aperture, beat anti-and drench on the baffle plate, flow down along baffle plate, the baffle plate bottom has the bending part that the rainwater side plate that leads is flowed down, avoid the anti-baffle plate place rainwater that drenches to splash on the power supply unit product, Fig. 6 is common side plate key diagram, does not have the anti-baffle plate that drenches again, after rainwater is entered by elliptical aperture, directly enter power supply inside, portion's product such as main transformer and reactor are gone up with regard to rainy water intrusion, can not reach the IP23 requirement.

Claims

1. the overall structure of an inversion welding source, it comprises front and back panel, left side plate, base and cover plate, be formed with an enclosed compartment on the front panel, mounting circuit boards on the compartment walls inboard relative with front panel, it is characterized in that, this overall structure is three layers of design of upper, middle and lower, separate by two dividing plates for these three layers, these two dividing plates are connected on rear board and the compartment walls, cooling fan places the upper strata, the wind direction is blown from the top down, and upper spacer is provided with the air channel air inlet, and the plate portion corresponding with the upper strata has shutter; The intermediate layer is the main power device sealant, the rear board corresponding with the intermediate layer, compartment walls and left and right side board are divided into sealing, and the common enclosed cavity that is arranged in the intermediate layer of forming of the two module radiator plates that link to each other with upper and lower dividing plate and forward and backward two connecting plates, this chamber is inner as the air channel that communicates with levels, wherein, main power device is installed on the heat-radiator plate outer surface, and space, main power device place is the independent sealed space with respect to air channel and power supply architecture outside; Main transformer and reactor are located in the lower floor, and lower clapboard is provided with ducting outlet, and plate portion corresponding with lower floor and base all have exhaust vent, take away the heat of main transformer and reactor.

2. the overall structure of inversion welding source according to claim 1 is characterized in that, inner the increasing of the plate portion corresponding with lower floor prevents drenching baffle plate, avoids rainwater to enter power supply inside.