CN212659423U

CN212659423U - High-frequency transformer framework

Info

Publication number: CN212659423U
Application number: CN202021651808.3U
Authority: CN
Inventors: 程峰; 周晓强; 周家民
Original assignee: WUXI XINCHANG ELECTRON FACTORY
Current assignee: WUXI XINCHANG ELECTRON FACTORY
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-03-05
Anticipated expiration: 2030-08-11

Abstract

The utility model discloses a high-frequency transformer framework, which comprises a winding body; a winding groove is circumferentially formed in the side wall of the winding body; steps are symmetrically arranged on the two inner walls of the winding groove; a notch is formed in the step on the inner wall of one side of the winding groove and is formed in the edge of the top of the step; a first mounting platform and a second mounting platform are symmetrically arranged on two sides of the top of the winding body; the first mounting platform corresponds to the notch. The utility model provides a high frequency transformer skeleton can effectually prevent transformer magnetic leakage to can avoid the peripheral component of transformer to receive the effect of induced voltage's interference.

Description

High-frequency transformer framework

Technical Field

The utility model relates to a transformer skeleton field especially relates to high frequency transformer skeleton field.

Background

The ammeter transformer comprises a plurality of independent windings, and in order to satisfy the safety requirement, need keep apart between each winding, simultaneously according to different electric wire netting design requirements, prevent transformer magnetic leakage and induced voltage and disturb peripheral components and parts, need shield the transformer, moreover because national ammeter quantity is huge, the design must satisfy the automated production requirement, consequently need design out and satisfy the transformer that leak protection magnetism anti-interference just can satisfy automated production.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the deficiency that exists among the prior art, the utility model provides a high frequency transformer skeleton can effectually prevent transformer magnetic leakage to can avoid the effect that the peripheral component of transformer received induced voltage's interference.

The technical scheme is as follows: in order to achieve the above purpose, the technical scheme of the utility model is as follows:

a high-frequency transformer framework comprises a coiling body; a winding groove is circumferentially formed in the side wall of the winding body; steps are symmetrically arranged on the two inner walls of the winding groove; a notch is formed in the step on the inner wall of one side of the winding groove and is formed in the edge of the top of the step; a first mounting platform and a second mounting platform are symmetrically arranged on two sides of the top of the winding body; the first mounting platform corresponds to the notch; the interference of the induced voltage of the transformer with the peripheral devices is avoided.

Further, the iron shielding cover is further included; one ends of the first mounting platform and the second mounting platform, which face the bottom of the winding body (1), are respectively provided with a glue guide groove; the glue guide groove is formed in the outward edges of the first mounting platform and the second mounting platform and penetrates through the first mounting platform and the second mounting platform; embedding pins at the edge of the iron shielding cover are respectively and correspondingly embedded into the glue guide grooves; the middle part of the iron shielding cover penetrates through the winding body, and the winding body is sleeved by the iron shielding cover; the influence of the outside on the magnetic circuit of the transformer is avoided.

Furthermore, reinforcing plates are symmetrically and fixedly arranged on two sides of the bottom of the wire coiling body; a plurality of oblique angles and a square angle are arranged between the two ends of the reinforcing plate and the side wall of the bottom end of the winding body; the square angle is correspondingly arranged on one side of the first mounting platform; can effectively play the role of fool-proofing.

Furthermore, a first strip structure and a second strip structure are respectively and correspondingly arranged on one sides, close to the winding slot, of the first mounting platform and the second mounting platform; a plurality of supporting feet are respectively arranged at the two ends of the tops of the first bar block structure and the second bar block structure; the supporting legs are respectively and correspondingly provided with guide columns; the transformer and the PCB are convenient to mount.

Furthermore, a plurality of pins are respectively arranged on the tops of the first bar block structure and the second bar block structure in parallel at intervals; lead grooves are arranged among the pins; the lead slot is respectively towards the winding slot by the first mounting platform and the second mounting platform, obliquely and downwardly extends from the middle parts of the first bar block structure and the second bar block structure, and is communicated with the step into the winding slot; leading wires from the head to the tail of the enameled wire.

Furthermore, the oblique bottom end of the lead slot on the first bar structure corresponding to the notch is higher than the notch; a baffle is arranged in the lead groove in the middle of the first bar structure; the baffle plate divides the lead slot in the middle of the first strip structure into a plurality of wire slots; the withstand voltage between the windings is improved and the short circuit between the windings is prevented.

Furthermore, the pins and the lead slots on the first stripe structure and the second stripe structure are respectively arranged in a staggered manner; effectively separating the individual windings.

Furthermore, a plurality of salient points are fixedly arranged on one sides of the first bar block structure and the second bar block structure, which are far away from the winding groove; the salient points correspond to the pins on the first bar block structure and the second bar block structure respectively, so that winding after winding the pins is facilitated, and the insulativity is enhanced.

Has the advantages that: the utility model can shield the transformer, avoid the interference of the induced voltage on the peripheral elements of the transformer, and also prevent the leakage of the transformer; including but not limited to the following technical effects:

1) the steps can isolate the wire group from the inner wall of the winding groove, so that an isolation effect can be achieved, the safety distance of insulation is ensured, and meanwhile, the notches are formed in the steps, so that the enameled wire cannot be higher than a winding package when the head and the tail of the enameled wire are led out, and the flatness of the package can be ensured; the interference of the induced voltage to peripheral elements of the transformer can be effectively avoided;

2) the arrangement of the iron shielding cover can cover the winding body and the winding, so that the anti-interference capability of the transformer is improved, and the influence of the outside on a magnetic circuit of the transformer is prevented; and meanwhile, the interference of the leakage flux of the transformer to peripheral elements is also avoided.

Drawings

FIG. 1 is a diagram of a transformer bobbin case;

FIG. 2 is a diagram of a transformer bobbin structure;

FIG. 3 is a diagram of a transformer reinforcing plate;

FIG. 4 is a first mounting platform block diagram;

fig. 5 is a view showing the structure of a second mounting platform.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in the attached figures 1-5: a high-frequency transformer framework comprises a coiling body 1; a winding groove 2 is annularly formed in the side wall of the winding body 1; steps 21 are symmetrically arranged on two inner walls of the winding groove 2; a notch 22 is formed in the step 21 on the inner wall of one side of the winding slot 2 and is formed in the edge of the top of the step 21; a first mounting platform 3 and a second mounting platform 4 are symmetrically arranged on two sides of the top of the winding body 1; the first mounting platform 3 corresponds to the notch 22; the step 21 can isolate the wire group from the inner wall of the winding slot 2, so that an isolation effect can be achieved, the safety distance of insulation is ensured, and meanwhile, the notch 22 is formed in the step 21, so that the head and the tail of the enameled wire are not higher than those of a winding package when being led out, and the enameled wire can be effectively leveled by the design, so that leakage inductance is reduced; moreover, the first mounting platform 3 and the second mounting platform 4 are easy to deform with the winding body 1 during mounting, so that the step 21 can also enhance the strength during mounting and avoid deformation; meanwhile, the step 21 wrapping process of the winding is reduced, and the working efficiency is improved.

Also comprises an iron shielding cover 5; one ends of the first mounting platform 3 and the second mounting platform 4 facing the bottom of the winding body 1 are respectively provided with a glue guiding groove 6; the glue guide groove 6 is formed in the outward edges of the first mounting platform 3 and the second mounting platform 4 and penetrates through the first mounting platform and the second mounting platform; the iron shielding case 5 is erected on the tops of the first mounting platform 3 and the second mounting platform 4; the middle part of the iron shielding case 5 penetrates through the iron shielding case, and the iron shielding case 5 covers the coiling body 1; on one hand, the glue guide groove 6 can reduce the weight of the first mounting platform 3 and the second mounting platform 4, and can form the strength of the edge increasing and decreasing platform; and iron shielding cover 5 carries out the point and glues fixedly, and gluey groove 6 can prevent that glue from irregularly trickling on the platform to first mounting platform 3 and the outside extension of second mounting platform 4 have effectually increased the creepage distance between the partly copper line of foot needle to iron shielding 5 on the platform through the magnetism, have improved the dielectric strength of product, and the spike voltage that produces when the effectual high voltage that has restrained high voltage and has strikeed has avoided the influence of spike voltage to the damage of peripheral component and magnetic circuit.

Reinforcing plates 7 are symmetrically and fixedly arranged on two sides of the bottom of the coiling body 1; a plurality of oblique angles 72 and a square angle 71 are arranged between the two ends of the reinforcing plate 7 and the side wall of the bottom end of the wire coiling body 1; the square corner 71 is correspondingly arranged on one side of the first mounting platform 3; the bevel angle 72 and the square angle 71 can support the reinforcing plate 7 and prevent deformation; meanwhile, the automatic winding equipment is provided with light induction, and when the insertion directions of the frameworks are consistent, the opposite light induction can be directly transmitted; when a framework is inserted reversely, light is blocked by the square angle 71, the opposite light induction is blocked and cannot be transmitted, and the equipment can give an alarm, so that the square angle 71 can effectively play a foolproof role.

The first mounting platform 3 and the second mounting platform 4 are respectively and correspondingly provided with a first bar structure 31 and a second bar structure 41 on one side close to the winding slot 2; a plurality of supporting feet 8 are respectively arranged at the two ends of the tops of the first bar structure 31 and the second bar structure 41; the supporting legs 8 can form a supporting plane, so that a supporting function is realized on the transformer, the enameled wire of the winding set is prevented from being in contact with other elements, and short circuit or open circuit is avoided; the supporting legs 8 are respectively and correspondingly provided with guide pillars 81, the guide pillars 81 are correspondingly arranged with mounting holes in the PCB, the transformer can be accurately mounted on the PCB, and the transformer can be mounted in place without loosening and displacement.

A plurality of pins 32 are respectively arranged on the tops of the first bar structure 31 and the second bar structure 41 in parallel at intervals; lead grooves 33 are formed among the pins 32; the lead slot 33 is respectively faced to the winding slot 2 by the first mounting platform 3 and the second mounting platform 4, obliquely and downwardly extends from the middle parts of the first bar structure 31 and the second bar structure 41, and is communicated with the step 21 to the inside of the winding slot 2; reach winding groove 2 after the guide of lead wire groove 33 behind the enameled wire kinking foot, later carry out the wire winding again, can be effectual separate the enameled wire end to end lead wire between through the lead wire groove like this, the security is strengthened, the wire winding of also being convenient for simultaneously.

The oblique bottom end of the lead slot 33 on the first bar structure 31 corresponding to the notch 22 is higher than the notch 22, so that the head and the tail of a lead are convenient to lead; a baffle plate 34 is arranged in the lead groove 33 in the middle of the first bar structure 31; the baffle 34 divides the lead slot 33 in the middle of the first bar structure 31 into a plurality of slots; the method is used for preventing short circuit between windings and improving the withstand voltage between windings.

The pins 32 and the lead slots 33 on the first bar structure 31 and the second bar structure 41 are respectively arranged in a staggered manner; the design can make the head and the tail lead wire between each winding stagger like this, can the effectual contact that reduces the lead-out wire between the enameled wire, improves the security.

A plurality of salient points 35 are fixedly arranged on one sides of the first bar structure 31 and the second bar structure 41, which are far away from the winding slot 2; the salient points 35 correspond to the pins 32 on the first bar structure 31 and the second bar structure 41 respectively; after the enameled wire is wound at the root of the pin, the enameled wire passes through the salient point 35 and the lead slot 33, and then the winding is started; therefore, the requirement of automatic winding of a machine can be met in order to facilitate the winding of the hanging legs, and the working efficiency is improved; and the enameled wire has increased the line length through the bump 35 wire winding, can effectively prevent soldering tin from making the short circuit excessively deeply, has also increased the creepage distance of stitch to solenoid simultaneously, has improved insulating nature.

The above description is of the preferred embodiment of the present invention, and it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the principles of the invention, and these modifications and variations are considered to be within the scope of the invention.

Claims

1. A high frequency transformer skeleton which characterized in that: comprises a coiling body (1); a winding groove (2) is formed in the side wall of the winding body (1) in the circumferential direction; steps (21) are symmetrically arranged on the two inner walls of the winding groove (2); a notch (22) is formed in the step (21) on the inner wall of one side of the winding groove (2), and the notch is formed in the edge of the top of the step (21); a first mounting platform (3) and a second mounting platform (4) are symmetrically arranged on two sides of the top of the winding body (1); the first mounting platform (3) corresponds to the notch (22).

2. The high-frequency transformer bobbin of claim 1, wherein: also comprises an iron shielding cover (5); one ends of the first mounting platform (3) and the second mounting platform (4) facing the bottom of the winding body (1) are respectively provided with a glue guide groove (6); the glue guide groove (6) is formed in the outward edges of the first mounting platform (3) and the second mounting platform (4) and penetrates through the first mounting platform and the second mounting platform; the embedded pins at the edge of the iron shielding cover (5) are respectively and correspondingly embedded into the glue guide grooves (6); the middle of the iron shielding cover (5) penetrates through the middle of the iron shielding cover, and the iron shielding cover (5) covers the winding body (1).

3. The high-frequency transformer bobbin of claim 1, wherein: reinforcing plates (7) are symmetrically and fixedly arranged on two sides of the bottom of the coiling body (1); a plurality of oblique angles (72) and a square angle (71) are arranged between the two ends of the reinforcing plate (7) and the side wall of the bottom end of the wire coiling body (1); the square corner (71) is correspondingly arranged on one side of the first mounting platform (3).

4. The high-frequency transformer bobbin of claim 1, wherein: a first strip structure (31) and a second strip structure (41) are respectively and correspondingly arranged on one sides, close to the winding slot (2), of the first mounting platform (3) and the second mounting platform (4); a plurality of supporting feet (8) are respectively arranged at the two ends of the tops of the first bar block structure (31) and the second bar block structure (41); the supporting legs (8) are respectively and correspondingly provided with guide columns (81).

5. The high-frequency transformer bobbin of claim 4, wherein: a plurality of pins (32) are arranged at intervals in parallel on the tops of the first bar structure (31) and the second bar structure (41); lead grooves (33) are formed among the pins (32); the lead groove (33) faces the winding groove (2) from the first mounting platform (3) and the second mounting platform (4) respectively, extends downwards from the middle parts of the first bar structure (31) and the second bar structure (41) in an inclined mode, and is communicated with the step (21) into the winding groove (2).

6. The high-frequency transformer bobbin of claim 5, wherein: the bottom end of a lead groove (33) on the first bar structure (31) corresponding to the notch (22) is higher than the notch (22) in an inclined manner; a baffle plate (34) is arranged in the lead groove (33) in the middle of the first bar structure (31); the baffle (34) divides the lead wire groove (33) in the middle of the first bar structure (31) into a plurality of wire grooves.

7. The high-frequency transformer bobbin of claim 5, wherein: the pins (32) and the lead grooves (33) on the first bar structure (31) and the second bar structure (41) are arranged in a staggered mode respectively.

8. The high-frequency transformer bobbin of claim 5, wherein: a plurality of salient points (35) are fixedly arranged on one sides of the first bar block structure (31) and the second bar block structure (41) far away from the winding groove (2); the salient points (35) correspond to the pins (32) on the first bar structure (31) and the second bar structure (41), respectively.