CN1011298B - Transformer type arc welder with tapping - Google Patents
Transformer type arc welder with tappingInfo
- Publication number
- CN1011298B CN1011298B CN 89107682 CN89107682A CN1011298B CN 1011298 B CN1011298 B CN 1011298B CN 89107682 CN89107682 CN 89107682 CN 89107682 A CN89107682 A CN 89107682A CN 1011298 B CN1011298 B CN 1011298B
- Authority
- CN
- China
- Prior art keywords
- post
- elementary
- winding
- coil
- primary coil
- 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
Links
Images
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Arc Welding Control (AREA)
Abstract
The present invention relates to a transformer type arc welder with a tap, which has an iron core in the shape of the Chinese character 'kou'. A primary coil and a secondary coil are wound on two side columns. The connecting mode of a secondary winding is changed by a set of movable contact, and the idle part of the coil is fully used. Magnetic leakage is intensified, and the ratio of copper and ferrum of a transformer is reduced. The present invention is an arc welding power source with high efficiency and low cost.
Description
The present invention relates to a kind of Arc Welding Power, particularly the method with the conversion coil tap changes leakage field, regulates the transformer type arc welder with tapping of welding current.
The arc welder of tapped transformer formula has a square shape iron core, and one is the first terminal that is wound with based on primary coil in two side columns, and another is the secondary post that is wound with based on secondary coil.The primary coil separated into two parts respectively has tap, is enclosed within respectively on elementary post and the secondary post.A change over switch that is serially connected in the primary coil branch road is regulated welding current by the conversion tap.Secondary coil is separated into two parts also, and a winding is arranged on elementary post, and two windings are arranged on the secondary post.Two kinds of bind modes of secondary winding: when using big welding current, with winding positive polarity series connection on a winding on the secondary post and the elementary post; When using little welding current, with two winding positive polaritys series connection on the secondary post.
There are two problems in this arc welder: the one, and idle idle winding is many, has increased amount of copper consuming.The 2nd, leakage reactance is little, thereby coil turn is many, makes transformer copper iron than big, and efficient is low, cost is high.Therefore this class welding machine only suits to make the specification of little electric current, low cyclic duration factor.
Be sort this problem out, 1988 the 1st phases, the 11 pages of propositions of " electric welding machine " magazine are connected in series a part of winding in the primary coil reversed polarity, to increase leakage reactance, to reduce electric current.The method of playing a reversed role has two kinds: a kind of is to play a reversed role when specially being equipped with a winding for little electric current gear, its shortcoming is to have increased new idle winding when other electric current gears, another kind is to use the idle winding of part, but elementary effective turn is reduced, exciting curent increases, the corresponding reduction of leakage reactance has weakened the effect that leakage reactance is increased because of playing a reversed role.And be subjected to the restriction of core sataration, can participate in the number of turn of playing a reversed role can not be many, make total effect little.
The objective of the invention is to provide a kind of copper iron than little, the transformer type arc welder with tapping that cost is low.
The object of the present invention is achieved like this: by one group of activity contact, when using big electric current with secondary post on after the secondary winding homopolarity parallel connection of two equal turn numbers and secondary winding positive polarity series connection on the elementary post, reduced idle winding; When using little electric current with secondary post on two secondary winding positive polaritys series connection backs connect with secondary winding reversed polarity on the elementary post, utilize idle winding to play a reversed role, increase leakage reactance, minimizing welding current.
The voltage that the voltage that the present invention is offset because of the reversed polarity series connection increases from secondary windings in series on the secondary post, ratio is big, thereby the leakage reactance increase is big, and welding current is little.Make primary coil can adopt the less number of turn, add and reduced idle winding, transformer copper iron is reduced than reduction, efficient raising, cost.
The concrete structure of invention is provided by following embodiment and accompanying drawing.
Fig. 1 is the electric hookup of the transformer type arc welder with tapping of proposition according to the present invention.
Fig. 2 is the installation diagram of the activity contact of a kind of embodiment of proposition according to the present invention.
Describe the details and the working condition of the concrete device that proposes according to the present invention in detail below in conjunction with accompanying drawing.
Among Fig. 1, A and B are respectively the elementary post and the secondary posts of transformer square shape iron core.Be with elementary winding W on the A
1A, secondary winding W
2A, be with elementary winding W on the B
1B, secondary winding W
2B1, W
2B2Change over switch K
1Be connected in series elementary winding W
1A, W
1BBack and power supply U
1Link.By change over switch K
1Change primary coil on elementary post and secondary post distribution proportion and change the leakage field size, can the fine tuning welding current.Sequence number (1), (3), (5) and (2), (4), (6) are respectively secondary coil W
2B1, W
2B2, W
2AEnd of the same name and different name end.The welding current coarse adjustment is to make secondary winding form two kinds of bind modes by one group of activity contact: big electric current gear is that (1), (3), (6) and (2), (4) link respectively with (5), (4) output voltage U
2, promptly solid line joins.Little electric current gear be (4), (6) and (2), (3) link respectively with (5), (1) output voltage U '
2, promptly dotted line joins.
This group activity contact can be directly to link with bolt; Also can change with a commutator; Also can connect with conducting strip shown in Figure 2.E, F are porose conducting strips among Fig. 2, and G is a conducting bolt, and numbering expression bolt links to each other with the leading-out terminal of the corresponding numbering of secondary winding on it.The position of change conducting strip can allow E, F that (1), (3), (6) are linked and (2), (4) link or (4), (6) are linked and (2), (3) link.
Secondary winding on the elementary post can be the secondary winding series connection on all or part of participation and the secondary post.
Secondary winding on the elementary post also can be made up of the part of two equal turn numbers.After its homopolarity parallel connection and secondary winding positive polarity series connection on the secondary post, the secondary winding reversed polarity is connected on its positive polarity series connection back and the secondary post.
Claims (1)
- A kind of transformer type arc welder with tapping, this device have a square shape iron core, and one is the elementary post that is wound with based on primary coil in two side columns, and another is the secondary post that is wound with based on secondary wire coil; Primary coil divides two parts, and tap is respectively arranged, and is enclosed within respectively on elementary post and the secondary post, and a change over switch that is serially connected in the primary coil branch road is regulated welding current by the conversion tap; Secondary coil is separated into two parts also, a winding is arranged on elementary post, two windings are arranged on the secondary post, and one group of activity contact makes two windings on the secondary post make positive polarity series connection back into by parallel connection to connect with the winding reversed polarity on the elementary post when it is characterized in that little electric current gear.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 89107682 CN1011298B (en) | 1989-09-30 | 1989-09-30 | Transformer type arc welder with tapping |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 89107682 CN1011298B (en) | 1989-09-30 | 1989-09-30 | Transformer type arc welder with tapping |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1040754A CN1040754A (en) | 1990-03-28 |
CN1011298B true CN1011298B (en) | 1991-01-23 |
Family
ID=4857300
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 89107682 Expired CN1011298B (en) | 1989-09-30 | 1989-09-30 | Transformer type arc welder with tapping |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1011298B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100337781C (en) * | 2002-06-27 | 2007-09-19 | 住友金属工业株式会社 | Material for welding and welded article |
-
1989
- 1989-09-30 CN CN 89107682 patent/CN1011298B/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100337781C (en) * | 2002-06-27 | 2007-09-19 | 住友金属工业株式会社 | Material for welding and welded article |
Also Published As
Publication number | Publication date |
---|---|
CN1040754A (en) | 1990-03-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C13 | Decision | ||
GR02 | Examined patent application | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
C57 | Notification of unclear or unknown address | ||
DD01 | Delivery of document by public notice |
Addressee: Wu Renqi Document name: Notice of termination |