CN2252073Y

CN2252073Y - Portable miniature DC electric welder

Info

Publication number: CN2252073Y
Application number: CN 96202550
Authority: CN
Inventors: 计平
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-02-18
Filing date: 1996-02-18
Publication date: 1997-04-16
Anticipated expiration: 2006-02-18

Abstract

The utility model provides a portable miniature direct current electric welder which is composed of a machine shell (1), a transformer (2), a rectifier (3), a capacitor (4), a cooling plate (5), a radiator (6), a voltage meter (7), a current meter (8), a binding post (9), a rheotrope (10), an indicating lamp (11), an adjustable handle (12), a universal guide wheel (13), etc., wherein, coils of the transformer adopt a winding structure with double superposition, the cooling plate and the capacitor are additionally arranged, so the utility model has the advantages of small size, less power consumption, high safety, low cost, etc.

Description

Portable minisize dc electric welding machine

The utility model relates to a kind of dc welding machine, particularly a kind of portable minisize dc electric welding machine.

At present, domestic common employed electric welding machine, particularly dc welding machine are nothing more than two kinds of conventional DC electric welding machine, silicon dc welding machines.Their shortcoming is that volume is big, big energy-consuming (must adopt power), and very inconvenient in production, transportation and use, having is exactly that its noise is bigger again, and coefficient of safety is low, has brought a lot of danger to the operator in use.In addition, because complex manufacturing, the volume of this electric welding machine are big, caused the waste of a lot of materials, price is very expensive, has exactly to be not easy to carry when work high above the ground again.

The purpose of this utility model be to provide that a kind of volume is little, little power consumption, coefficient of safety height, portable minisize dc electric welding machine that cost is low.

The purpose of this utility model is to realize like this, this electric welding machine is by casing, transformer, rectifying tube, capacitor, heating panel, radiator, voltage, ammeter, binding post, rheotrope, indicator light, adjustable handle, critical pieces such as universal directive wheel are formed, its transformer is installed in the bosom position of casing, two radiators are separately positioned on the both sides of transformer, two rectifying tubes are installed on each radiator, capacitor is set at the top of the radiator in left side, front panel is provided with the voltage and current table on the casing, rheotrope and output wiring terminal; Rear board is provided with lead-in clamp and indicator light, two adjustable handles are installed in two ends, the left and right sides above the casing, four universal directive wheels be arranged on casing below, the coil of its transformer is to adopt two-fold coincide type winding construction, power output is big, be provided with four groups of heating panels in the both sides of transformer silicon steel sheet, heating panel adopts iron plate to make matrix, and adopts double-decker; Capacitor is connected in parallel on the output of bridge rectifier, can improve 1.4 times of output voltages, and sparking is convenient, and welding is level and smooth; Ammeter is connected on output by shunt, and indicator light is connected in parallel on input, and output wiring terminal adopts butterfly screws, and wiring is convenient.

The utility model is owing to adopted above-mentioned structure, and promptly the coil of transformer has adopted the winding construction of two-fold coincide type, has set up heating panel and capacitor and has made this electric welding machine that following advantage be arranged:

(1) little (500 * 250 * 300mm of this dc welding machine volume ³), be 1/4 of common welding machine, (32kg) in light weight is 1/3 of common welding machine, price is low, carries and uses convenient.

(2) floating voltage can reach 75-105V (dividing five grades), and operating voltage is 25-35V, and operating current 100-250A, its input voltage only use civilian electric 220V safe and reliable.Being particularly suitable for individual light maintenance factory uses.

(3) but make its more energy-conservation long-play owing to set up heating panel and capacitor, and sparking is easily, welding steadily, it is more extensive that it can weld white steel, cast iron and sheet applications scope.

(4) cost of this welding machine only is 1400 yuan, so be that 1/5 price of common welding machine is more easy.

(5) because adjustable handle has been installed, more convenient to use, binding post adopts butterfly screws, and wiring is convenient.

Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.

Fig. 1 is portable minisize dc electric welding machine perspective view.

Fig. 2 is portable minisize dc electric welding machine rear panel structure schematic diagram.

Fig. 3 is portable minisize dc electric welding machine circuit theory diagrams.

Describe concrete structure of the present utility model and working condition in detail below in conjunction with accompanying drawing, this electric welding machine is by casing 1, transformer 2, rectifying tube 3, capacitor 4, heating panel 5, radiator 6, voltage, ammeter 7,8, binding post 9, rheotrope 10, indicator light 11, adjustable handle 12, universal directive wheel 13 critical pieces such as grade are formed, its transformer 2 is installed in the bosom position of casing 1, two radiators 6 are separately positioned on the both sides of transformer 2, two rectifying tubes 3 are installed on each radiator 6, capacitor 4 is set at the top of the radiator 6 in left side, front panel is provided with voltage and current table 7 on the

casing

1,8, rheotrope 10 and output wiring terminal 9; Rear board is provided with lead-in clamp 14 and indicator light 11, two adjustable handles 12 are installed in two ends, the left and right sides above the casing 1, four universal directive wheels 13 be arranged on casing 1 below, the coil of its transformer 2 is to adopt two-fold coincide type winding construction, power output is big, be provided with four groups of heating panels 5 in the both sides of transformer silicon steel sheet, heating panel 5 adopts iron plate to make matrix, and adopts double-decker; Capacitor 4 is connected in parallel on the output of bridge rectifier, can improve 1.4 times of output voltages, and sparking is convenient, welding is level and smooth, voltmeter 7 and capacitor 4 parallel connections, and ammeter 8 is by shunt series connection output, indicator light and 11 is associated in input, and output wiring terminal 9 adopts butterfly screws, and wiring is convenient.Working condition, to import termination power, the signal of telecommunication passes through transformer 2 transformations after 3 rectifications of over commutation device make floating voltage improve 1.4 times by capacitor 4, export from output, rheotrope 10 can be regulated five shelves, and I represents to cut binding post, and II is the big fire binding post, III is big moderate heat binding post, IV is the moderate heat binding post, and V is little fiery binding post (can weld thin plate), and the user can regulate the different gears of rheotrope according to the needs of actual welding like this.

Claims

1, a kind of portable minisize dc electric welding machine, this electric welding machine is by casing (1), transformer (2), rectifying tube (3), capacitor (4), heating panel (5) radiator (6), voltage, ammeter (7), (8), binding post (9), rheotrope (10), indicator light (11), adjustable handle (12), universal directive wheel critical pieces such as (13) is formed, it is characterized in that: transformer (2) is installed in the bosom position of casing (1), two radiators (6) are separately positioned on the both sides of transformer (2), two rectifying tubes (3) are installed on each radiator (6), capacitor (4) is set at the top of the radiator (6) in left side, and casing (1) is gone up front panel and is provided with voltage and current table (7), (8) rheotrope (10) and output wiring terminal (9); Rear board is provided with lead-in clamp (14) and indicator light (11), and two adjustable handles (12) are installed in two ends, the left and right sides above the casing (1), four universal directive wheels (13) be arranged on casing (1) below;

2, a kind of portable minisize dc electric welding machine according to claim 1, it is characterized in that: the coil of described transformer (2) is to adopt two-fold coincide type winding construction, be provided with four groups of heating panels (5) in the both sides of transformer silicon steel sheet, heating panel (5) adopts iron plate to make matrix, and adopts double-decker;

3, a kind of portable minisize dc electric welding machine according to claim 1, it is characterized in that: described capacitor (4) is connected in parallel on the output of bridge rectifier, voltmeter (7) and capacitor (4) parallel connection, ammeter (8) is by shunt series connection output, indicator light (1) is connected in parallel on input, and output wiring terminal (9) adopts butterfly screws.