CN219370767U

CN219370767U - Novel high-frequency transformer

Info

Publication number: CN219370767U
Application number: CN202223454729.5U
Authority: CN
Inventors: 汪均华; 胡菊缨; 汪小琴; 刘志杨
Original assignee: Zhongshan Xinya Electronics Co ltd
Current assignee: Zhongshan Xinya Electronics Co ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-07-18
Anticipated expiration: 2032-12-23

Abstract

The utility model provides a novel high-frequency transformer which increases the safety distance between a coil and a pin, effectively improves the insulation protection effect of the transformer and effectively prevents oil seepage of the transformer. Including the skeleton, the bobbin of setting on the skeleton, winding group, the setting of winding on the bobbin are two rows of pins and last magnetic core and lower magnetic core in the skeleton bottom, lower magnetic core embedded assembly is on the skeleton, the bobbin is located between upper magnetic core and the lower magnetic core, and winding group is including last magnetic core and lower magnetic core cladding, go up magnetic core and lower magnetic core left and right sides contact surface is indent cambered surface design, and be provided with arc insulating spacer on the indent cambered surface, be equipped with the point on the arc insulating spacer and glue the coating, go up magnetic core and lower magnetic core and glue the coating bonding through the point, the skeleton bottom is provided with two rows of curved arc type lead grooves, curved arc type lead groove is corresponding with the pin, the envelope curve in the winding group draws forth and is connected with the pin through curved arc type lead groove. The utility model is suitable for the technical fields of inductors and electronic equipment elements.

Description

Novel high-frequency transformer

Technical Field

The utility model relates to the technical field of inductance and electronic equipment elements, in particular to a novel high-frequency transformer.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and mainly comprises a coil, a magnetic core, a framework and the like, wherein a plurality of pins are arranged on the framework, the leads of the coil are required to be connected to the pins in sequence, the pins in the traditional transformer are very close to the coil and the magnetic core, and although a lead slot is also arranged, the coil is easy to be accidentally injured when the subsequent tin immersion process is carried out on the pins by adopting the design of the linear lead slot, so that the quality of products is low, meanwhile, the upper magnetic core and the lower magnetic core are adhered together through adhesive bonding, but the insulating protection effect of the transformer in an adhesive mode is not high, and oil seeping is easy to occur at the bonding positions of the upper magnetic core and the lower magnetic core when insulating oil is immersed in the subsequent process, so that the inductance is influenced.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art, and provides a novel high-frequency transformer which increases the safety distance between a coil and a pin, effectively improves the insulation protection effect of the transformer and effectively prevents oil seepage of the transformer.

The technical scheme adopted by the utility model is as follows: the winding frame is arranged between the upper magnetic core and the lower magnetic core, the winding frame is covered by the upper magnetic core and the lower magnetic core, the contact surfaces of the left side and the right side of the upper magnetic core and the lower magnetic core are of concave cambered surface designs, an arc-shaped insulating gasket is arranged on the concave cambered surface, a dispensing coating is arranged on the arc-shaped insulating gasket, the upper magnetic core and the lower magnetic core are bonded through the dispensing coating, two rows of curved arc-shaped lead grooves are arranged at the bottom of the framework, correspond to the pins, and wrap wires in the winding frame are led out through the curved arc-shaped lead grooves and are connected with the pins.

Further, the two rows of curved lead grooves are in radial design from inside to outside on the framework, and the radian of each curved lead groove is always and is designed by bending from top to bottom.

Further, the winding group comprises a primary coil, a first secondary coil, a second secondary coil and a third secondary coil which are sequentially wound on the winding frame from inside to outside, and a Mala insulating adhesive tape is wrapped among the primary coil, the first secondary coil, the second secondary coil and the third secondary coil.

Further, the primary coil and the third secondary coil are identical in size, the first secondary coil and the second secondary coil are identical in size, and retaining wall gaskets are arranged between the winding groups and the interiors of the upper magnetic core and the lower magnetic core.

Finally, insulating baffles are arranged on the two sides of the upper magnetic core at the top of the framework.

Compared with the prior art, the utility model has the beneficial effects that: the insulation protection of the transformer is improved by the arc-shaped insulation gasket arranged on the bonding contact surface of the upper magnetic core and the lower magnetic core; simultaneously, the upper magnetic core and the lower magnetic core are bonded by utilizing the dispensing coating, and the original point contact bonding mode is replaced by surface contact, so that the sealing performance of the product is improved, oil seepage is effectively prevented in the subsequent oil immersion process, and the inductance of the product is ensured; meanwhile, the bent arc type lead grooves are utilized to lead out the leads in the winding groups to the pins, so that the distance between the winding groups and the pins is increased, and damage to the winding groups during subsequent tin dipping procedures on the pins is effectively avoided. Therefore, the utility model increases the safety distance between the coil and the pins, effectively improves the insulation protection effect of the transformer and effectively prevents the oil seepage of the transformer.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic side elevational view of the present utility model;

fig. 3 is a schematic cross-sectional view of the winding set.

Detailed Description

As shown in fig. 1, 2 and 3, the utility model comprises a framework 1, a winding frame 2 arranged on the framework 1, a winding group 3 wound on the winding frame 2, two rows of pins 4 arranged at the bottom of the framework 1, an upper magnetic core 5 and a lower magnetic core 6, wherein the lower magnetic core 6 is embedded and assembled on the framework 1, the winding frame 2 is positioned between the upper magnetic core 5 and the lower magnetic core 6, the winding group 3 is covered by the upper magnetic core 5 and the lower magnetic core 6, the contact surfaces of the left side and the right side of the upper magnetic core 5 and the lower magnetic core 6 are of concave cambered surface design, an arc-shaped insulating gasket 7 is arranged on the concave cambered surface, a dispensing coating 8 is arranged on the arc-shaped insulating gasket 7, the upper magnetic core 5 and the lower magnetic core 6 are bonded through the dispensing coating 8, two rows of arc-shaped lead grooves 9 are arranged at the bottom of the framework 1, the arc-shaped lead grooves 9 correspond to the pins 4, and covered wires in the winding group 3 are connected with the pins 4 through the arc-shaped lead grooves.

In this embodiment, two rows of the curved wire grooves 9 are radially designed on the framework 1 from inside to outside, and the radian of each curved wire groove 9 is always and is curved from top to bottom. The winding set 3 comprises a primary coil 31, a first secondary coil 32, a second secondary coil 33 and a third secondary coil 34 which are sequentially wound on the winding frame 2 from inside to outside, and a Mala insulating tape 35 is wrapped among the primary coil 31, the first secondary coil 32, the second secondary coil 33 and the third secondary coil 34. The primary coil 31 and the third secondary coil 34 are identical in size, the first secondary coil 32 and the second secondary coil 33 are identical in size, and retaining wall gaskets 10 are arranged between the winding group 3 and the insides of the upper magnetic core 5 and the lower magnetic core 6. Insulating baffles 11 are also arranged on the top of the framework 1 and positioned on two sides of the upper magnetic core 5.

According to the utility model, the linear lead groove in the traditional transformer is improved, and the curved arc-shaped lead groove 9 with radian is designed, so that the safety distance from the wire winding group 3 to the covered wire connected with the pin 4 is increased, and the damage to the wire winding group 3 during the subsequent tin immersion process is prevented; meanwhile, the upper magnetic core 5 and the lower magnetic core 6 are mutually bonded by the dispensing coating 8, the original dispensing bonding is replaced by the mode that the whole contact surface is coated with glue, the overall bonding degree is improved, and the assembly quality of products is enhanced. Meanwhile, the upper magnetic core 5 and the lower magnetic core 6 are safely isolated through the arc-shaped insulating gaskets 7, so that the transformer is more temperature-resistant than the traditional transformer using an insulating adhesive tape, is not easy to burn due to secondary soldering tin, and accordingly, an arc is started, and the safety of a product is effectively improved.

Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the utility model, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the utility model, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a novel high frequency transformer, is in including skeleton (1), setting bobbin (2) on skeleton (1), winding are in winding group (3) on bobbin (2), set up two rows of pins (4) and upper magnetic core (5) and lower magnetic core (6) of skeleton (1) bottom, lower magnetic core (6) embedded assembly is in on skeleton (1), bobbin (2) are located upper magnetic core (5) with between lower magnetic core (6), just winding group (3) are by upper magnetic core (5) with lower magnetic core (6) cladding is including, its characterized in that: the utility model discloses a winding group winding device, including upper magnetic core (5) and lower magnetic core (6), upper magnetic core (5) with lower magnetic core (6) left and right sides contact surface is indent cambered surface design, and be provided with arc insulating pad (7) on the indent cambered surface, be equipped with some glue coating (8) on arc insulating pad (7), upper magnetic core (5) with lower magnetic core (6) are passed through some glue coating (8) bonding, skeleton (1) bottom is provided with two rows of curved arc lead grooves (9), curved arc lead grooves (9) with pin (4) are corresponding, the envelope curve in winding group (3) is passed through curved arc lead grooves (9) draw forth and with pin (4) are connected.

2. A novel high frequency transformer as claimed in claim 1, wherein: the two rows of curved lead grooves (9) are in radial design from inside to outside on the framework (1), and the radian of each curved lead groove (9) is always and is designed by bending from top to bottom.

3. A novel high frequency transformer as claimed in claim 2, wherein: the winding set (3) comprises a primary coil (31), a first secondary coil (32), a second secondary coil (33) and a third secondary coil (34) which are sequentially wound on the winding frame (2) from inside to outside, wherein a Mala insulating tape (35) is coated between the primary coil (31), the first secondary coil (32), the second secondary coil (33) and the third secondary coil (34).

4. A novel high frequency transformer according to claim 3, characterized in that: the primary coil (31) and the third secondary coil (34) are identical in size, the first secondary coil (32) and the second secondary coil (33) are identical in size, and retaining wall gaskets (10) are arranged between the winding groups (3) and the interiors of the upper magnetic core (5) and the lower magnetic core (6).

5. The novel high-frequency transformer according to claim 4, wherein: insulating baffles (11) are further arranged on two sides of the upper magnetic core (5) at the top of the framework (1).