CN202534474U - Electric resistance welding transformer and water cooling double-layer coil thereof - Google Patents
Electric resistance welding transformer and water cooling double-layer coil thereof Download PDFInfo
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- CN202534474U CN202534474U CN2011204208369U CN201120420836U CN202534474U CN 202534474 U CN202534474 U CN 202534474U CN 2011204208369 U CN2011204208369 U CN 2011204208369U CN 201120420836 U CN201120420836 U CN 201120420836U CN 202534474 U CN202534474 U CN 202534474U
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Abstract
The utility model discloses a water cooling double-layer coil comprising a coil body, a busbar, an internal pre-embedded pure copper pipe, a water inlet copper pipe, and a water outlet copper pipe, which are arranged in an integrated structure by using the casting method. In the water cooling double-layer coil provided in the utility model, the coil body, the busbar, the internal pre-embedded pure copper pipe, the water inlet copper pipe, and the water outlet copper pipe are formed in an integrated structure by using the casting method, therefore the problem of weak welding strength of the busbar and the casting body can be solved, the leakage problem of the threaded connection between the water inlet copper pipe and the coil body and between the water outlet copper pipe and the coil body can be solved, the service lifetime can be prolonged, and the safety can be improved. In addition, the internal pre-embedded pure copper pipe, the water inlet copper pipe, the water outlet copper pipe, and the coil body are arranged in an integrated structure by using the casting method, and are made of pure copper materials, and therefore the cooling effect can be improved. The utility model also discloses an electric resistance welding transformer provided with the water cooling double-layer coil thereof.
Description
Technical field
The utility model relates to electric resistance welding transformer technology field, more particularly, relates to a kind of electric resistance welding transformer and water cooled double-layered coil thereof.
Background technology
Resistance weldering is that the resistance that utilizes electric current to pass through the metal joint place produces heat, and exerts pressure in the joint metal is welded at this place.During the resistance weldering, secondary circuit is conducting, does not need higher arcing voltage, so required voltage is lower, but electric current is very big, still can produce enough heats in the contact position and weld.At this moment secondary impedance is also more stable, and it only plays metering function, does not require that power supply has the external characteristic of falling suddenly.Therefore, resistance weldering transformer is the special transformer of a kind of low-voltage, big electric current, low leakage reactance, and its auxiliary winding is generally combined by one or several parallel loop.Voltage is generally 1～30 volt, more than the hundreds of peaces of electric current, looks the weldment thickness and decides.Resistance weldering transformer can be used for spot welding, seam weldering and butt welding etc., also can be used for the multiple spot welding.
At present, be applied to electric resistance welding field water cooled double-layered coil and mainly contain two kinds, a kind of is to be formed by the coiling of rectangle copper tube, is used for connecting through welding manner the bus-bar of external cable, links together with coil body.Be used for the inlet and outlet pipe lines of logical cooling water, link together through threaded water nozzle and rectangle copper tube.Its shortcoming is: 1. in the double-layer coil winding process, be prone to cause copper tube stretcher strain, increased internal resistance, and cause the copper tube boring to block easily, reduce cooling water flow; 2. each weld has increased the coil internal resistance, and each junction intensity is relatively poor, leaks easily; 3. production efficiency is low.Therefore, with the transformer that the double-layer coil winding of this structure is made, interior damage is big, and it is little to exert oneself, and in case because metal fatigue and external force cause each junction to leak, with causing hidden danger and even whole the danger that transformer is scrapped.Another kind forms for pre-buried stainless steel tube monoblock cast, though internal resistance is little, it is big to exert oneself, and has the problem of cooling capacity difference.
Therefore, how on the basis that guarantees cooling capacity, reduce internal resistance, avoid because the phenomenon that metal fatigue and external force cause each junction to leak becomes the technical problem that those skilled in the art need to be resolved hurrily.
The utility model content
In view of this, the utility model provides a kind of electric resistance welding transformer and water cooled double-layered coil thereof, with on the basis that guarantees cooling capacity, reduces internal resistance, avoids because the phenomenon that metal fatigue and external force cause each junction to leak.
For realizing above-mentioned purpose, the utility model provides following technical scheme:
A kind of water cooled double-layered coil comprises coil body, bus-bar, inner pre-buried pure copper tube, water inlet copper pipe and water outlet copper pipe, and said coil body, bus-bar, inner pre-buried pure copper tube, water inlet copper pipe and water outlet copper pipe are casting integrated formula structure.
Preferably, in above-mentioned water cooled double-layered coil, the pre-buried pure copper tube in said inside is connected with said water inlet copper pipe and water outlet copper pipe respectively.
A kind of electric resistance welding transformer comprises the water cooled double-layered coil, and said water cooled double-layered coil is as above each described water cooled double-layered coil.
Can find out from above-mentioned technical scheme; The water cooled double-layered coil that the utility model provides; Through being casting integrated formula structure, solved the problem of bus-bar and foundry goods body weld strength difference, the water inlet copper pipe water outlet copper pipe seepy question that is threaded with coil body with coil body, bus-bar, inner pre-buried pure copper tube, water inlet copper pipe and water outlet copper tube design; Prolong useful life, improved fail safe.Inner in addition pre-buried pure copper tube, water inlet copper pipe, water outlet copper pipe and coil body are that the integral type cast forms, and are the fine copper material, so improved cooling effect.
Description of drawings
The structural representation of the water cooled double-layered coil that Fig. 1 provides for the utility model embodiment;
The vertical view of the water cooled double-layered coil that Fig. 2 provides for the utility model embodiment;
The front view of the water cooled double-layered coil that Fig. 3 provides for the utility model embodiment.
Embodiment
The utility model discloses a kind of electric resistance welding transformer and water cooled double-layered coil thereof,, reduce internal resistance, avoid because the phenomenon that metal fatigue and external force cause each junction to leak with on the basis that guarantees cooling capacity.
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1-Fig. 3, the structural representation of the water cooled double-layered coil that Fig. 1 provides for the utility model embodiment; The vertical view of the water cooled double-layered coil that Fig. 2 provides for the utility model embodiment; The front view of the water cooled double-layered coil that Fig. 3 provides for the utility model embodiment.
The water cooled double-layered coil that the utility model embodiment provides; Comprise coil body 3, bus-bar 2, inner pre-buried pure copper tube 1, water inlet copper pipe 4 and water outlet copper pipe 5; Wherein, coil body 3, bus-bar 2, inner pre-buried pure copper tube 1, water inlet copper pipe 4 and water outlet copper pipe 5 are casting integrated formula structure.
The water cooled double-layered coil that the utility model provides is through being casting integrated formula structure with coil body, bus-bar, inner pre-buried pure copper tube, water inlet copper pipe and water outlet copper tube design.Compare with traditional rectangular copper tube coiling water cooled double-layered coil, it has solved the problem of bus-bar and foundry goods body weld strength difference, and the water inlet copper pipe water outlet copper pipe seepy question that is threaded with coil body has prolonged useful life, has improved fail safe.Form the water cooled double-layered coil and compare with burying the stainless steel tube monoblock cast, its inner pre-buried pure copper tube, water inlet copper pipe, water outlet copper pipe and coil body are that the integral type cast forms, and are the fine copper material, so improved cooling effect.
In the present embodiment; Bus-bar 2 is casting integrated formula structure with coil body 3; Promptly directly bus-bar 2 is cast on the coil body 3, avoids the welding connecting mode of bus-bar 2 and foundry goods body 3, promptly avoided the problem of bus-bar 2 with foundry goods body 3 weld strength differences.
In the present embodiment; Inner pre-buried pure copper tube 1 is connected with water inlet copper pipe 4 and water outlet copper pipe 5 respectively, and is casting integrated formula structure, promptly directly the pre-buried pure copper tube in inside 1, water inlet copper pipe 4 and water outlet copper pipe 5 is made of one the formula structure; Avoid connected mode that water inlet copper pipe and water outlet copper pipe are threaded with coil body; Promptly avoid water inlet copper pipe and the water outlet copper pipe seepy question that is threaded with coil body, prolonged useful life, improved fail safe.
The electric resistance welding transformer that the utility model embodiment provides comprises the water cooled double-layered coil, and wherein, this water cooled double-layered coil is the as above disclosed snap close mounting structure of embodiment.Because this electric resistance welding transformer has the disclosed water cooled double-layered coil of the foregoing description, therefore have above-mentioned technique effect equally, this case is repeated no more at this, and concrete effect can be consulted the disclosed content of the foregoing description.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (3)
1. water cooled double-layered coil; Comprise coil body (3), bus-bar (2), inner pre-buried pure copper tube (1), water inlet copper pipe (4) and water outlet copper pipe (5); It is characterized in that said coil body (3), bus-bar (2), inner pre-buried pure copper tube (1), water inlet copper pipe (4) and water outlet copper pipe (5) are casting integrated formula structure.
2. water cooled double-layered coil according to claim 1 is characterized in that, the pre-buried pure copper tube in said inside (1) is connected with said water inlet copper pipe (4) and water outlet copper pipe (5) respectively.
3. an electric resistance welding transformer comprises the water cooled double-layered coil, it is characterized in that, said water cooled double-layered coil is like each described water cooled double-layered coil of claim 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204208369U CN202534474U (en) | 2011-10-31 | 2011-10-31 | Electric resistance welding transformer and water cooling double-layer coil thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204208369U CN202534474U (en) | 2011-10-31 | 2011-10-31 | Electric resistance welding transformer and water cooling double-layer coil thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534474U true CN202534474U (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204208369U Expired - Fee Related CN202534474U (en) | 2011-10-31 | 2011-10-31 | Electric resistance welding transformer and water cooling double-layer coil thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202534474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982977A (en) * | 2012-12-20 | 2013-03-20 | 无锡市南方电器制造有限公司 | Secondary winding of resistance welding transformer |
| CN103295742A (en) * | 2013-05-30 | 2013-09-11 | 浙江金华巨能电子科技有限公司 | Secondary coil of transformer of welding machine |
-
2011
- 2011-10-31 CN CN2011204208369U patent/CN202534474U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982977A (en) * | 2012-12-20 | 2013-03-20 | 无锡市南方电器制造有限公司 | Secondary winding of resistance welding transformer |
| CN102982977B (en) * | 2012-12-20 | 2015-07-15 | 无锡市南方电器制造有限公司 | Secondary winding of resistance welding transformer |
| CN103295742A (en) * | 2013-05-30 | 2013-09-11 | 浙江金华巨能电子科技有限公司 | Secondary coil of transformer of welding machine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20131031 |