CN212625106U

CN212625106U - Laminated bus-bar type winding and transformer using same

Info

Publication number: CN212625106U
Application number: CN202021541581.7U
Authority: CN
Inventors: 黄文华
Original assignee: Shenzhen Fengya Electronics Co ltd
Current assignee: Shenzhen Fengya Electronics Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-02-26
Anticipated expiration: 2030-07-30

Abstract

The utility model relates to a female transformer of arranging formula winding and applied this winding of stromatolite solves current copper sheet winding and connects unreliable easy contact failure's problem. Including a plurality of single circle copper sheets of range upon range of, two adjacent positive and negative alternate arrangement of single circle copper sheets, keep apart its characterized in that through insulating spacer between two adjacent single circle copper sheets: the two leading-out ends of the single-turn copper sheets are respectively provided with a sheet-shaped welding end, and the vertically corresponding welding ends of the two adjacent single-turn copper sheets are welded together, so that a first pin, a second pin and a third pin of the winding are formed. Therefore, during vibration, the flaky welding ends are welded together to have elastic buffering, and are not easy to crack, so that the connection is firm and reliable.

Description

Laminated bus-bar type winding and transformer using same

Technical Field

The utility model relates to a female transformer of arranging formula winding and applied this winding of stromatolite.

Background

The existing copper sheet winding comprises a plurality of single-turn copper sheets which are arranged in a stacked mode, two adjacent single-turn copper sheets are alternately arranged in a positive and negative mode, the two adjacent single-turn copper sheets are isolated through insulating spacers, the leading-out ends of the winding are welded together through vertical copper columns which are the same in height as the winding, namely, a plurality of sections of copper bars are adopted for connection, and the joint is usually fixed in a tin soldering mode. The more copper bar connections, the more the risk points of structural failure are increased, and the structural fatigue caused by the creep risk of the soldering structure is often shown in the transformer, particularly on a vehicle-mounted equal-motion platform. In the vibration process of the winding, the welding part is easy to damage, the connection is unreliable and poor contact is easy to occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the connection of the existing copper sheet winding is unreliable and poor in contact easily.

For solving the utility model provides a technical scheme that technical problem adopted does: the utility model discloses a female formula winding of arranging of stromatolite is including a plurality of single circle copper sheets of range upon range of range, two adjacent positive and negative alternate arrangement of single circle copper sheet, keep apart through insulating spacer between two adjacent single circle copper sheets, the both ends of drawing forth of single circle copper sheet all be equipped with a flaky welding end, the welding end welding of the vertical correspondence of two adjacent single circle copper sheets is in the same place to form the first pin of winding, second pin and third pin.

Use the utility model discloses a female transformer that arranges formula winding of stromatolite, the transformer including the magnetic core, the coil on the magnetic core is located to the cover, and female formula winding of arranging of stromatolite.

Right the utility model discloses do further limited technical scheme and include:

the single-turn copper sheet is rectangular with an opening, and two welding ends are respectively led out from two ends of the opening of the single-turn copper sheet.

And the middle parts of the first pin, the second pin and the third pin are respectively punched with a mounting through hole.

The single-turn copper sheet and the insulating spacer are arranged in the center correspondingly, and the edge of the insulating spacer protrudes out of the edge of the single-turn copper sheet.

The magnetic core is formed by pressing two symmetrical openings of an upper E-shaped magnetic core and a lower E-shaped magnetic core together.

The magnetic core is sleeved with a framework, the coil and the laminated bus-bar winding are arranged on the framework, and the framework is provided with an air guide opening.

The transformer still including with the left heat conduction aluminum hull and the right heat conduction aluminum hull of the laminating setting of magnetic core both sides.

The transformer further comprises an upper heat-conducting silica gel gasket and a lower heat-conducting silica gel gasket which are vertically attached to the magnetic core.

The transformer further comprises an upper heat conduction aluminum shell and a lower heat conduction aluminum shell which are vertically attached to the upper heat conduction silica gel gasket and the lower heat conduction silica gel gasket.

Through the technical scheme, the beneficial effects of the utility model are that: the utility model discloses a both ends of drawing forth of female row's formula winding of stromatolite single circle copper sheet all are equipped with a flaky welding end, and the welding end welding of the vertical correspondence of two adjacent single circle copper sheets is in the same place to form the first pin of winding, second pin and third pin, thereby during the vibration, flaky welding end welding is elastic buffer together, is difficult to the fracture, thereby firm in connection is reliable.

Drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of a laminated busbar type winding according to the present invention.

Fig. 2 is a schematic diagram of a three-dimensional structure of a transformer according to the present invention.

Fig. 3 is a schematic structural diagram of the explosion of the transformer according to the present invention.

Fig. 4 is the schematic diagram of the sectioning structure of the transformer of the present invention.

Fig. 5 is a schematic diagram of a sectioning structure of a transformer of the present invention.

Detailed Description

The structure of the present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1 to 5, a laminated busbar type winding 10 includes a plurality of single-turn copper sheets 11 arranged in a laminated manner, two adjacent single-turn copper sheets are alternately arranged in a positive and negative direction, the two adjacent single-turn copper sheets are isolated by an insulating spacer 12, two lead-out ends of the single-turn copper sheets are respectively provided with a sheet-shaped welding end 13, and vertically corresponding welding ends of the two adjacent single-turn copper sheets are welded together to form a first pin 14, a second pin 15 and a third pin 16 of the winding. Therefore, during vibration, the flaky welding ends are welded together to have elastic buffering, and are not easy to crack, so that the connection is firm and reliable. In the embodiment, the single-turn copper sheet is rectangular with an opening, and two welding ends are respectively led out from two ends of the opening of the single-turn copper sheet. And a mounting through hole 17 is punched in the middle of each of the first pin, the second pin and the third pin. Thereby with first pin, second pin and third pin crimping together reduce the vibration fracture, greatly reduced the vibration stress failure rate of transformer, promoted circuit and consumer reliability thereof, at first pin, the middle part punching press installation through-hole of second pin and third pin provides convenience for the installation of power. The contact resistance at the connection is also reduced while the mounting reliability is improved. In the embodiment, the single-turn copper sheet and the insulating spacer are arranged in a centered manner, and the edge of the insulating spacer protrudes out of the edge of the single-turn copper sheet. The insulating spacer may be aramid 1313(NOMEX), polyimide, or nylon (PA 66) with high temperature resistance and high insulating property. During implementation, the edge of the insulating spacer can protrude over 0.5mm from the edge of the single-turn copper sheet.

Use the utility model discloses a female formula of arranging winding's of stromatolite transformer 20, the transformer is including magnetic core 21, the coil 22 on the magnetic core is located to the cover, and female formula of arranging winding 10 of stromatolite. In this embodiment, the core 21 is formed by pressing two E-shaped upper cores 211 and lower cores 212 together with symmetrical openings. The magnetic core is internally sleeved with a framework 23, the coil and the laminated bus-bar winding are arranged on the framework, and the framework is provided with an air guide port 231. Therefore, the structure is simple, the installation is convenient, and meanwhile, the air guide opening on the framework provides a heat conduction air channel for circulating air flow, so that the internal temperature of the transformer is effectively reduced. In this embodiment, the transformer further includes a left heat-conducting aluminum shell 24 and a right heat-conducting aluminum shell 25 attached to the two sides of the magnetic core. Thereby facilitating the heat dissipation of the magnetic core from the left and right sides. In this embodiment, the transformer further includes an upper thermal conductive silicone gasket 26 and a lower thermal conductive silicone gasket 27, which are vertically attached to the magnetic core. And an upper heat-conducting aluminum shell 28 and a lower heat-conducting aluminum shell 29 which are vertically attached to the upper heat-conducting silica gel gasket and the lower heat-conducting silica gel gasket. Thereby being convenient for the magnetic core to be fixed and simultaneously being beneficial to the heat dissipation of the upper side and the lower side of the magnetic core. Go up heat conduction silica gel gasket and play the vibration cushioning effect with lower heat conduction silica gel gasket messenger magnetic core upper and lower both sides ability heat dissipation simultaneously.

While the present invention has been described in detail and with reference to the accompanying drawings, it is not to be understood as limited by the scope of the invention. Various modifications and changes may be made by those skilled in the art without inventive work within the scope of the present invention as described in the claims.

Claims

1. The utility model provides a female formula winding that arranges of stromatolite, is including a plurality of single-turn copper sheets of range upon range of range, two adjacent single-turn copper sheets positive and negative alternate arrangement, keeps apart its characterized in that through insulating spacer between two adjacent single-turn copper sheets: the two leading-out ends of the single-turn copper sheets are respectively provided with a sheet-shaped welding end, and the vertically corresponding welding ends of the two adjacent single-turn copper sheets are welded together, so that a first pin, a second pin and a third pin of the winding are formed.

2. The laminated busbar winding of claim 1, wherein: the single-turn copper sheet is rectangular with an opening, and two welding ends are respectively led out from two ends of the opening of the single-turn copper sheet.

3. The laminated busbar winding of claim 1, wherein: and the middle parts of the first pin, the second pin and the third pin are respectively punched with a mounting through hole.

4. The laminated busbar winding of claim 1, wherein: the single-turn copper sheet and the insulating spacer are arranged in the center correspondingly, and the edge of the insulating spacer protrudes out of the edge of the single-turn copper sheet.

5. A transformer using a laminated bus-bar winding according to any one of claims 1-4, wherein: the transformer comprises a magnetic core, a coil sleeved on the magnetic core, and the laminated busbar type winding as claimed in any one of claims 1 to 4.

6. A transformer according to claim 5, characterised in that: the magnetic core is formed by pressing two symmetrical openings of an upper E-shaped magnetic core and a lower E-shaped magnetic core together.

7. A transformer according to claim 5, characterised in that: the magnetic core is sleeved with a framework, the coil and the laminated bus-bar winding are arranged on the framework, and the framework is provided with an air guide opening.

8. A transformer according to claim 5, characterised in that: the transformer still including with the left heat conduction aluminum hull and the right heat conduction aluminum hull of the laminating setting of magnetic core both sides.

9. A transformer according to claim 5, characterised in that: the transformer further comprises an upper heat-conducting silica gel gasket and a lower heat-conducting silica gel gasket which are vertically attached to the magnetic core.

10. A transformer according to claim 9, wherein: the transformer further comprises an upper heat conduction aluminum shell and a lower heat conduction aluminum shell which are vertically attached to the upper heat conduction silica gel gasket and the lower heat conduction silica gel gasket.