CN209912701U

CN209912701U - High power density high frequency power transformer

Info

Publication number: CN209912701U
Application number: CN201920661764.3U
Authority: CN
Inventors: 吴连民
Original assignee: Changxin Long Xiang Electronics Co Ltd
Current assignee: Changxin Long Xiang Electronics Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-01-07
Anticipated expiration: 2029-05-10

Abstract

The utility model discloses a high power density high frequency power transformer, it is including skeleton, magnetic core and the coil of coiling on the skeleton, the difference is: the pin assembly comprises a pin shell, a pin body is embedded at the lower end of the pin shell, a fixing groove is formed in the upper end of the pin shell, a pin cover body is installed in the fixing groove and comprises an insulating cover body and an electric conductor, a through hole is formed in one side, located on the insulating cover body, of the electric conductor, a coil penetrates through the through hole to be wound on the electric conductor, the electric conductor is in contact with the pin body, the pin assembly is of a detachable structure, the coil is wound and welded on the electric conductor, a welding point is hidden in the pin assembly, a metal wire body is not exposed, an insulated wire of the transformer is better, the service life of the transformer is prolonged, and meanwhile, when the pin body is damaged or the position of the installed pin shell is wrong, the pin cover body only.

Description

High power density high frequency power transformer

The technical field is as follows:

the utility model relates to a transformer field especially relates to a high power density high frequency power transformer.

Background art:

the high-frequency transformer is a power transformer with the working frequency exceeding the intermediate frequency (10kHz), is mainly used as a high-frequency switching power transformer in a high-frequency switching power supply, and is also used as a high-frequency inverter power transformer in a high-frequency inverter power supply and a high-frequency inverter welding machine.

However, the connection mode of the coil and the pin of the existing high-frequency power transformer adopts the traditional welding mode, the welding head is exposed outside, the appearance is not elegant, the insulativity is poor, the electric leakage or the electromagnetic interference phenomenon is easy to generate, the service life of the transformer is influenced, the welding position is fixed, the modification is complicated once the high-frequency power transformer is welded on a certain pin, and meanwhile, the pin of the high-frequency power transformer is easy to damage, so the service life of the whole high-frequency transformer is directly influenced.

The utility model has the following contents:

the utility model aims at solving the current problem, and provide a high power density high frequency power transformer, this high frequency power transformer pin subassembly is split type structure, divide into pin casing and pin lid, not only can solve the exposed problem outside of welding point, has prolonged high frequency transformer's life simultaneously, the utility model discloses a technical solution measures as follows:

the utility model provides a high power density high frequency power transformer, its coil of coiling on the skeleton, skeleton one end is located lateral surface department fixedly connected with pin subassembly, the pin subassembly is including the pin casing of shaping on the skeleton, pin casing lower extreme is inlayed and is had the pin body, open pin casing upper end has the fixed slot, install the pin lid in the fixed slot, the pin lid is including insulating lid and the electric conductor that is fixed in insulating lid lower extreme, it has seted up the through-hole to lie in electric conductor one side on the insulating lid, the coil passes the through-hole coiling on the electric conductor, the electric conductor contacts with the pin body.

Preferably, the conductor is a T-shaped structure, and includes a horizontal conducting strip and a vertical conducting rod.

Preferably, the pin body comprises a pin head and a pin needle formed at the lower end of the pin head, and the upper end of the pin head is provided with a funnel-shaped groove.

Preferably, the groove and the vertical conducting rod are matched with each other in size and shape.

Preferably, the upper end of the inner wall of the fixing groove is provided with a limiting groove, the side surface of the insulating cover body is formed with a limiting bulge, and the position and the shape of the limiting bulge are matched with the limiting groove.

Preferably, the insulation cover body is of a T-shaped structure, and includes a vertical insulator positioned in the fixing groove and a horizontal insulator formed at an upper end of the vertical insulator, and a lower surface of the horizontal insulator forms an angle of 10 ° to 15 ° with a horizontal plane.

The beneficial effects of the utility model reside in that:

1. the utility model relates to a high power density high frequency power transformer, its pin subassembly adopts dismantled and assembled structure, divide into the pin casing and install the pin lid on the pin casing, welds the coil coiling on the electric conductor, hides the welding point in the pin subassembly, does not expose the metal wire body, and the insulated wire is better.

2. The utility model relates to a high power density high frequency power transformer, its pin subassembly adopts split type detachable construction, divide into the pin casing and install the pin lid on the pin casing, weld the coil coiling on the pin lid, the user can change or select the pin casing of required installation at will according to the demand, easy operation is convenient, need not repeated welding, when the pin needle that the discovery used damages, can take out the pin lid simultaneously, install again on other good pin casings, easy operation is convenient, need not repeated welding, the life of transformer has been prolonged.

Description of the drawings:

FIG. 1 is a schematic diagram of the framework structure of the transformer of the present invention;

FIG. 2 is a cross-sectional view of the transformer pin assembly of the present invention;

fig. 3 is a schematic view of the structure of the transformer pin cover of the present invention;

fig. 4 is the schematic diagram of the structure of the transformer pin housing of the present invention.

In the drawings: 1. a framework; 3. a coil; 4. a pin assembly; 41. a pin housing; 42. a pin cover body; 421. an insulating cover body; 422. an electrical conductor; 423. a through hole; 424. a horizontal conducting strip; 425. a vertical conductive rod; 426. a limiting bulge; 427. a horizontal insulator; 428. a vertical insulator; 43. a pin body; 431. a pin head; 432. a pin; 433. a groove; 44. fixing grooves; 441. and a limiting groove.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "inner", "etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected or detachably connected; may be a mechanical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

As shown in fig. 1-4, a high power density high frequency power transformer includes a frame 1, a magnetic core, and a coil 3 wound on the frame 1, wherein one end of the frame 1 is fixedly connected to a pin assembly 4 at an outer side, the pin assembly 4 includes a pin housing 41 formed on the frame 1, a pin body 43 is embedded at a lower end of the pin housing 41, a fixing groove 44 is formed at an upper end of the pin housing 41, a pin cover 42 is installed in the fixing groove 44, so that the pin cover 42 and the pin housing 41 are of a detachable structure, when the coil 3 is wound on a conductor 422, the pin housing 41 to be installed can be selected, the pin cover 42 includes an insulating cover 421 and a conductor 422 fixed at a lower end of the insulating cover 421, a through hole 423 is formed at one side of the conductor 422 on the insulating cover 421, the coil 3 is wound on the conductor 422 through the through hole 423, the electrical conductor 422 is in contact with the lead body 43, thereby ensuring that the winding point of the wound coil 3 is placed inside the lead assembly 4, rather than being exposed.

Specifically, the conductive body 422 is a T-shaped structure, and includes a horizontal conductive piece 424 and a vertical conductive rod 425, the vertical conductive rod 425 facilitates the winding of the coil 3 on the conductive body 422, and the horizontal conductive piece 424 increases the contact area between the conductive body 422 and the lead body 43.

Specifically, the lead body 43 includes a lead head 431 and a lead pin 432 formed at a lower end of the lead head 431, the upper end of the lead head is provided with a funnel-shaped groove 433, the groove 433 is matched with the vertical conductive rod 425 in size and shape, and the funnel-shaped groove 433 is designed to be mainly matched with the shape and structure of the conductive body 422 to ensure that the conductive body 422 is in contact with the lead body 43.

Specifically, a limiting groove 441 is formed at the upper end of the inner wall of the fixing groove 44, a limiting protrusion 426 is formed on the side surface of the insulating cover 421, and the position and the shape of the limiting protrusion 426 are matched with the limiting groove 441, so that the pin cover 42 is conveniently mounted on the pin housing 41.

Specifically, the insulative cover 421 is a T-shaped structure including a vertical insulator 428 disposed in the fixing groove 44 and a horizontal insulator 427 formed at an upper end of the vertical insulator 428, wherein a lower surface of the horizontal insulator 427 is at an angle of 10 ° to 15 ° with respect to a horizontal plane, so as to facilitate the removal of the lead cover 42 from the lead housing 41.

The above description is only a preferred embodiment of the present invention, and all other embodiments obtained by those skilled in the art without any creative effort shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a high power density high frequency power transformer, its coil (3) on skeleton (1) including skeleton (1), magnetic core and coiling, skeleton (1) one end is located lateral surface department fixedly connected with pin subassembly (4), its characterized in that: the pin assembly (4) comprises a pin shell (41) formed on a framework (1), a pin body (43) is inlaid at the lower end of the pin shell (41), a fixing groove (44) is formed in the upper end of the pin shell (41), a pin cover body (42) is installed in the fixing groove (44), the pin cover body (42) comprises an insulating cover body (421) and a conductor (422) fixed at the lower end of the insulating cover body (421), a through hole (423) is formed in one side of the conductor (422) on the insulating cover body (421), a coil (3) penetrates through the through hole (423) to be wound on the conductor (422), and the conductor (422) is in contact with the pin body (43).

2. A high power density high frequency power transformer according to claim 1, characterized in that: the conductor (422) is of a T-shaped structure and comprises a horizontal conducting strip (424) and a vertical conducting rod (425).

3. A high power density high frequency power transformer according to claim 2, characterized in that: the pin body (43) comprises a pin head (431) and a pin needle (432) formed at the lower end of the pin head (431), and the upper end of the pin head is provided with a funnel-shaped groove (433).

4. A high power density high frequency power transformer according to claim 3, characterized in that: the groove (433) is matched with the size and shape of the vertical conducting rod (425).

5. A high power density high frequency power transformer according to claim 1, characterized in that: the upper end of the inner wall of the fixing groove (44) is provided with a limiting groove (441), a limiting protrusion (426) is formed on the side surface of the insulating cover body (421), and the position and the shape of the limiting protrusion (426) are matched with the limiting groove (441).

6. A high power density high frequency power transformer according to claim 1, characterized in that: the insulating cover body (421) is of a T-shaped structure and comprises a vertical insulator (427) positioned in the fixing groove (44) and a horizontal insulator (428) formed at the upper end of the vertical insulator (427), and the lower surface of the horizontal insulator (428) forms an angle of 10-15 degrees with the horizontal plane.