CN215933358U - High-frequency resistance welding transformer - Google Patents
High-frequency resistance welding transformer Download PDFInfo
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- CN215933358U CN215933358U CN202121899594.6U CN202121899594U CN215933358U CN 215933358 U CN215933358 U CN 215933358U CN 202121899594 U CN202121899594 U CN 202121899594U CN 215933358 U CN215933358 U CN 215933358U
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Abstract
A high-frequency resistance welding transformer comprises a secondary current connecting seat assembly, a secondary coil arranged below the secondary current connecting seat assembly, an iron core sleeved on the secondary coil, a primary coil arranged between the secondary coils, a primary current wiring terminal led out by the primary coil, an anode connecting plate and a cathode connecting piece arranged on the secondary current connecting seat assembly, an anode output seat connected with the anode connecting plate, a cathode input seat connected with the cathode connecting piece, a rectifier diode arranged between two adjacent anode connecting plates and clamped by a clamping plate, wherein the anode connecting plates are arranged in parallel in the front and back direction, the clamping plate is far away from the cathode connecting piece, the distance between the anode connecting plate and the cathode connecting piece is not less than 20mm, the anode output seat is arranged at the top of the anode connecting plate, and the cathode input seat is arranged at the top of the cathode connecting piece. The eddy current that its reduction splint produced can be great improves the high frequency current output ability of resistance welding transformer, improves resistance welding performance, satisfies high frequency welding production needs.
Description
Technical Field
The utility model relates to a resistance welding transformer, in particular to a high-frequency resistance welding transformer.
Background
Resistance welding is an important device for realizing welding automation in the welding field. With the development of industry and the continuous improvement of the requirements of modern society on the product quality, the resistance welding is widely applied to the automobile and aviation industries by virtue of excellent corrosion resistance and good welding performance.
The positive connecting plate in the existing resistance welding transformer is arranged left and right, the clamping plates can only be arranged on the left side and the right side of the positive connecting plate, the clamping plates between the positive connecting plate and the negative connecting piece generate more eddy currents, the high-frequency current output capacity of the resistance welding transformer is weak, the welding performance of the resistance welding transformer is poor, and the requirements of high-frequency welding production cannot be met.
Disclosure of Invention
The utility model aims to solve the technical problems and provides a high-frequency resistance welding transformer which can greatly reduce eddy current generated by clamping plates, improve the high-frequency current output capacity of the resistance welding transformer, improve the welding performance of resistance welding and meet the production requirement of high-frequency welding.
The technical solution of the utility model is as follows:
the utility model provides a high frequency resistance welds transformer, including secondary current connection seat assembly, set up the secondary coil below secondary current connection seat assembly, the iron core of suit on the secondary coil, set up the primary coil between the secondary coil, the primary current wiring end of drawing forth by the primary coil, set up polylith positive connecting plate and negative pole connecting piece above secondary current connection seat assembly, the positive output seat of being connected with positive connecting plate, the negative pole input seat of being connected with the negative pole connecting piece, positive connecting plate and negative pole connecting piece are arranged about, set up between two adjacent positive connecting plates and through the rectifier diode of splint centre gripping, at positive output seat, positive connecting plate, secondary current connection seat assembly, secondary coil, be equipped with the cooling water course in negative pole connecting piece and the negative pole input seat, its special character lies in: the anode connecting plate is arranged in parallel in the front and at the back, the clamping plate is far away from the cathode connecting piece, the distance between the clamping plate and the cathode connecting piece is more than or equal to 20mm, the anode output seat is arranged at the top of the anode connecting plate, and the cathode input seat is arranged at the top of the cathode connecting piece.
Furthermore, the iron core is an amorphous iron core or a nanocrystalline iron core, so that the single piece of the iron core is thinner, the magnetic force line is stronger, the magnetic saturation density of the iron core is improved, and high-frequency output is facilitated.
Furthermore, the negative electrode connecting piece is columnar, so that the specific surface area is increased, the current output capacity under high frequency is improved, and the bending resistance is improved.
Furthermore, the secondary current connecting seat assembly is composed of a negative electrode bottom plate, two positive electrode middle seats arranged in front and back, and a negative electrode top seat which is positioned on the negative electrode bottom plate, insulated from the positive electrode middle seats and electrically connected with the negative electrode bottom plate.
Furthermore, the positive electrode middle seat arranged in front and back is a long step and a short step which are high at the left and low at the right and have upward step surfaces, the bottom of the negative electrode top seat is provided with an L-shaped step with a downward step surface, and the L-shaped step, the long step and the short step are buckled, so that the secondary current connecting seat assembly is compact and regular in structure.
Furthermore, the primary coil is formed by winding a plurality of strands of T2 flat copper enameled wires in parallel, the T2 flat copper enameled wires after parallel connection are wrapped by epoxy resin layers, the overall size of the primary coil is reduced, the insulating property is improved, the processing is convenient, the specific surface area of a primary coil conductor is increased, the primary current conduction rate is improved, and the requirements of a high-power medium-high frequency transformer are met.
Furthermore, the iron core is an amorphous iron core, and the thickness of each amorphous iron core is 0.03-0.04 mm.
Further, the iron core is a nanocrystalline iron core, and the thickness of each nanocrystalline is 0.02-0.03 mm.
Furthermore, a Rogowski coil is arranged on the positive electrode output seat or the negative electrode connecting seat.
The utility model has the beneficial effects that: arranging a plurality of positive connecting plates in parallel front and back to ensure that the clamping plates are far away from the negative connecting piece and the shortest distance between the clamping plates and the negative connecting piece is more than or equal to 20 mm; the positive output seat is arranged at the top of the positive connecting plate, the negative input seat is arranged at the top of the negative connecting piece, so that the current directions of the positive connecting plate and the negative connecting seat are parallel, the eddy current is reduced, the current output capacity under high frequency is improved, the high frequency current with the output frequency of 3k-10kHZ is output by the high frequency resistance welding transformer, the current value reaches 2-4 ten thousand A, and the production requirement of high frequency welding is met.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the secondary current connector assembly of FIG. 1;
fig. 3 is a schematic structural view of the negative electrode top seat in fig. 2;
in the figure: 1-secondary current connecting seat assembly, 2-secondary coil, 3-iron core, 4-primary coil, 5-primary current terminal, 6-positive connecting plate, 7-negative connecting piece, 8-Rogowski coil, 9-positive output seat, 10-negative input seat, 11-rectifier diode, 12-clamping plate, 13-cooling water channel, 101-negative bottom plate, 102-positive middle seat and 103-negative top seat.
Detailed Description
As shown in fig. 1-3, the high-frequency resistance welding transformer comprises a secondary current connecting seat assembly 1, a secondary coil 2, an iron core 3 and a primary coil 4, wherein the secondary current connecting seat assembly 1 is composed of a negative electrode bottom plate 101, two positive electrode middle seats 102 arranged in front and back, and a negative electrode top seat 103 located on the negative electrode bottom plate 101, insulated from the positive electrode middle seats 102 and electrically connected with the negative electrode bottom plate 101, the positive electrode middle seats 102 on the front and back sides are long steps and short steps with the left high and the right low and the step surfaces upward, an L-shaped step with the step surface downward is arranged at the bottom of the negative electrode top seat 103, and the L-shaped step is buckled with the long step and the short step; the secondary coil 2 is in a U-shaped tubular shape, is arranged in parallel from left to right and is divided into two groups from front to back, a primary iron core 3 is embedded between two secondary coils 2 arranged in parallel from left to right, a primary coil 4 is clamped between the two secondary coils 2 arranged in parallel from front to back, the secondary coil 2 is inserted and welded in a mounting hole on the lower surface of a secondary current connecting seat assembly 1, the iron core 3 is a nanocrystalline iron core 3, the thickness of each nanocrystalline is 0.025mm, the primary coil 4 is formed by winding a plurality of T2 flat copper enameled wires in parallel, the T2 flat copper enameled wires after parallel connection are wrapped with an epoxy resin layer, a primary current terminal 5 is connected at the leading-out end of the primary coil 4, a plurality of positive connecting plates 6 and columnar negative connecting pieces 7 which are arranged in parallel from front to back and are arranged on the secondary current connecting seat assembly 1, the positive connecting plates 6 and the negative connecting pieces 7 are arranged from left to right, and the Rogowski coil 8 is arranged on the negative connecting seat, an anode output seat 9 is arranged at the upper end of the anode connecting plate 6, a cathode input seat 10 is arranged at the upper end of the cathode connecting plate 7, the anode output seat is arranged at the top of the anode connecting plate, the cathode input seat is arranged at the top of the cathode connecting plate, a rectifier diode 11 is arranged between two adjacent anode connecting plates 6, the rectifier diode 11 is clamped by a clamping plate 12 arranged outside the anode connecting plate at the outer side, the clamping plate 12 is far away from the cathode connecting plate 7, the distance between the two is not less than 20mm, and mutually communicated cooling water channels 13 are arranged in the anode output seat 9, the anode connecting plate 6, the secondary current connecting seat assembly 1, the secondary coil 2, the cathode connecting plate 7 and the cathode input seat 10.
The current flowing through the positive connecting plate 6 is parallel to the current flowing through the negative connecting seat, so that eddy current is reduced, the current output capacity under high frequency is improved, the high frequency resistance welding transformer outputs high frequency current with the frequency of 3k-10kHZ, the current value reaches 2-4 ten thousand A, and the requirement of high frequency welding production is met.
The above description is only exemplary of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a high frequency resistance welds transformer, including secondary current connection seat assembly, set up the secondary coil below secondary current connection seat assembly, the iron core of suit on the secondary coil, set up the primary coil between the secondary coil, the primary current wiring end of drawing forth by the primary coil, set up polylith positive connecting plate and negative pole connecting piece above secondary current connection seat assembly, the positive output seat of being connected with positive connecting plate, the negative pole input seat of being connected with the negative pole connecting piece, positive connecting plate and negative pole connecting piece are arranged about, set up between two adjacent positive connecting plates and through the rectifier diode of splint centre gripping, at positive output seat, positive connecting plate, secondary current connection seat assembly, secondary coil, be equipped with the cooling water course in negative pole connecting piece and the negative pole input seat, a serial communication port: the anode connecting plate is arranged in parallel in the front and at the back, the clamping plate is far away from the cathode connecting piece, the distance between the clamping plate and the cathode connecting piece is more than or equal to 20mm, the anode output seat is arranged at the top of the anode connecting plate, and the cathode input seat is arranged at the top of the cathode connecting piece.
2. The high-frequency resistance welding transformer according to claim 1, characterized in that: the iron core is an amorphous iron core or a nanocrystalline iron core.
3. The high-frequency resistance welding transformer according to claim 1, characterized in that: the negative pole connecting piece is columnar.
4. The high-frequency resistance welding transformer according to claim 1, characterized in that: the secondary current connecting seat assembly is composed of a negative pole bottom plate, two positive pole middle seats arranged in front and back, and a negative pole top seat which is positioned on the negative pole bottom plate, insulated with the positive pole middle seats and electrically connected with the negative pole bottom plate.
5. The high-frequency resistance welding transformer according to claim 4, characterized in that: the positive electrode middle seat arranged in the front and back is a long step and a short step which are high at the left and low at the right and have upward step surfaces, the bottom of the negative electrode top seat is provided with an L-shaped step with a downward step surface, and the L-shaped step is buckled with the long step and the short step.
6. The high-frequency resistance welding transformer according to claim 1, characterized in that: the primary coil is formed by winding a plurality of T2 flat copper enameled wires in parallel, and the T2 flat copper enameled wire which is connected in parallel is wrapped with an epoxy resin layer.
7. The high-frequency resistance welding transformer according to claim 2, characterized in that: the iron core is an amorphous iron core, and the thickness of each amorphous iron core is 0.03-0.04 mm.
8. The high-frequency resistance welding transformer according to claim 2, characterized in that: the iron core is a nanocrystalline iron core, and the thickness of each nanocrystalline is 0.02-0.03 mm.
9. The high-frequency resistance welding transformer according to claim 1, characterized in that: the Rogowski coil is arranged on the positive electrode output seat or the negative electrode connecting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121899594.6U CN215933358U (en) | 2021-08-13 | 2021-08-13 | High-frequency resistance welding transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121899594.6U CN215933358U (en) | 2021-08-13 | 2021-08-13 | High-frequency resistance welding transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215933358U true CN215933358U (en) | 2022-03-01 |
Family
ID=80422683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121899594.6U Active CN215933358U (en) | 2021-08-13 | 2021-08-13 | High-frequency resistance welding transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215933358U (en) |
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2021
- 2021-08-13 CN CN202121899594.6U patent/CN215933358U/en active Active
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