CN216623945U

CN216623945U - Transformer framework and transformer

Info

Publication number: CN216623945U
Application number: CN202123216187.3U
Authority: CN
Inventors: 梁峰
Original assignee: Panasonic Welding Systems Tangshan Co Ltd
Current assignee: Panasonic Welding Systems Tangshan Co Ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-27
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a transformer framework. The transformer framework comprises an upper shell and a lower shell which are annular, the upper shell and the lower shell are arranged together in a buckling mode, a cavity which is annular and located inside the transformer framework is limited between the upper shell and the lower shell, and the upper shell and the lower shell are provided with heat dissipation holes communicated with the cavity. By using the transformer framework, the wires wound on the transformer framework can radiate heat to the cavity through the radiating holes, so that the radiating performance of the transformer framework is greatly improved. In addition, the utility model further discloses a transformer which comprises the transformer framework.

Description

Transformer framework and transformer

Technical Field

The utility model relates to the technical field of transformer equipment, in particular to a transformer framework.

Background

The transformer framework is an important part of the transformer, not only provides winding space for a transformer wire, but also often plays a role in fixing a magnetic core, and meanwhile, the transformer framework also plays a role in supporting the shape of a transformer main body.

In the prior art, the transformer framework of the transformer of the electric welding machine has the problems of complex structure and poor heat dissipation, and can influence the long-term use reliability of the transformer of the electric welding machine. For example, the different parts are often locked together by screws, which not only affects the efficiency of assembly, but also takes up additional space, which is not conducive to the winding of wires.

SUMMERY OF THE UTILITY MODEL

It is a primary object of the present invention to overcome at least one of the above-mentioned drawbacks of the prior art and to provide a transformer bobbin and a transformer with good heat dissipation performance.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

according to one aspect of the utility model, a transformer framework is provided, which comprises an annular upper shell and an annular lower shell, wherein the cross section of the upper shell and/or the lower shell is a curved surface, the upper shell is arranged on the lower shell, the upper shell and the lower shell limit an annular cavity which is positioned inside the transformer framework, and the upper shell and/or the lower shell are/is provided with a plurality of heat dissipation holes communicated with the cavity.

According to an embodiment of the present invention, the heat dissipation holes are strip-shaped slits, the plurality of strip-shaped slits are uniformly arranged along a circumferential direction of the transformer bobbin, and each strip-shaped slit extends outward along a radial direction of the transformer bobbin.

According to an embodiment of the present invention, a plurality of ribs protruding outward are disposed on an outer surface of the upper shell and/or the lower shell, the plurality of ribs are uniformly arranged along a circumferential direction of the transformer bobbin, and a limiting portion for limiting a lead is formed between two adjacent ribs.

According to an embodiment of the present invention, the number of the ribs is the same as the number of the heat dissipation holes, and the ribs are disposed in a one-to-one correspondence.

According to an embodiment of the present invention, the upper shell and the lower shell each have an inner annular surface, and the rib is provided on the inner annular surface of the upper shell and/or the lower shell.

According to an embodiment of the utility model, the upper shell and the lower shell are connected together by means of a snap fit.

According to an embodiment of the present invention, the upper case and the lower case each have an outer annular surface, the outer annular surface is a card and an end surface, the card and the end surface of the lower case are provided with a plurality of first locking parts and second locking parts, and the first locking parts and the second locking parts are alternately and alternately arranged on the card and the end surface of the lower case; the clamping and end face of the upper shell is provided with a plurality of third clamping parts and fourth clamping parts, and the third clamping parts and the fourth clamping parts are alternately arranged on the clamping and end face of the upper shell at intervals; the lower shell and the upper shell are connected together in a manner that the first buckling part and the third buckling part, and the second buckling part and the fourth buckling part are buckled with each other respectively; the first buckling part, the second buckling part, the third buckling part and the fourth buckling part are all clamping hooks.

According to an embodiment of the present invention, an aperture communicating with the chamber is formed between the first locking portion and the second locking portion.

According to an embodiment of the utility model, the upper shell and the lower shell are geometric bodies having the same shape and size.

According to another aspect of the present invention, a transformer comprises a transformer bobbin and a conducting wire wound on the transformer bobbin, wherein the transformer bobbin is any one of the transformer bobbins.

According to the technical scheme, the transformer framework has the advantages and positive effects that:

according to the transformer framework, the cavity is arranged in the transformer framework, and the upper shell and/or the lower shell are/is provided with the heat dissipation holes communicated with the cavity, so that the heat dissipation performance of the transformer framework can be greatly improved.

The transformer that this application provided in addition owing to adopt this application's transformer skeleton, can guarantee its good thermal diffusivity in long-term use.

Drawings

Various objects, features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the utility model, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the utility model and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views.

Fig. 1 is a first axial side structural schematic of a transformer bobbin, according to an exemplary embodiment.

Fig. 2 is an exploded schematic view of a transformer bobbin shown in accordance with an exemplary embodiment.

Fig. 3 is a cross-sectional structural diagram illustrating a bobbin of a transformer according to an exemplary embodiment.

Fig. 4 is a second axial side structural schematic of a bobbin, according to an exemplary embodiment.

Wherein the reference numerals are as follows:

100-upper shell; 110-a third snap-fit portion; 120-a fourth latch;

200-a lower shell; 210-a first latch; 220-a second buckling part;

300-pore space;

400-heat dissipation holes;

500-convex ribs;

600-a chamber;

700-a limiting part;

800-conducting wire.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the utility model. One skilled in the relevant art will recognize, however, that the utility model may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the utility model.

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the utility model.

As shown in fig. 1, 2 and 3, in the present embodiment, the transformer bobbin includes an upper shell 100 and a lower shell 200, wherein the upper shell 100 and the lower shell 200 are both in a ring-shaped geometry, the cross-section of the upper shell 100 and the cross-section of the lower shell 200 are both in a curved shape, and the upper shell 100 and the lower shell 200 are connected together by means of a snap. An annular chamber 600 is defined between the upper case 100 and the lower case 200, and the chamber 600 is located in the transformer bobbin.

As shown in fig. 1 and 2, in the present embodiment, each of the upper casing 100 and the lower casing 200 is provided with 30 heat dissipation holes 400, the heat dissipation holes 400 are respectively and annularly distributed on the upper casing 100 and the lower casing 200, and the heat dissipation holes 400 are respectively communicated with the chamber 600. As shown in fig. 4, the wire 800 wound around the transformer bobbin releases heat that is radiated to the outside and radiates heat rays to the cavity 600 through the heat radiation holes 400, thereby greatly enhancing heat radiation. Of course, in another embodiment, other numbers of heat dissipation holes 400 may be disposed in the upper case 100 and the lower case 200 according to actual requirements, and are not described herein again.

In addition, as shown in fig. 2, the heat dissipation holes 400 are strip-shaped slits that penetrate the housing from top to bottom, and the strip-shaped slits are uniformly arranged along the circumferential direction of the transformer bobbin, and each strip-shaped slit extends outward along the radial direction of the transformer bobbin. The heat dissipation holes 400 of this structure, since they are radially arranged with respect to the case, can greatly reduce the influence on the structural strength of the upper case 100 and the lower case 200 in the circumferential direction. The transformer framework is ensured to have enough structural strength while enhancing the heat dissipation performance.

As shown in fig. 3 and 4, in the present embodiment, each of the upper casing 100 and the lower casing 200 has an inner annular surface and an outer annular surface, wherein each of the inner annular surfaces of the upper casing 100 and the lower casing 200 is provided with a plurality of ribs 500 protruding outward, the ends of the ribs 500 and the casing are uniformly arranged, and the ribs 500 are uniformly arranged along the circumferential direction of the transformer bobbin.

In addition, the ribs 500 of the upper shell 100 and the lower shell 200 can be in one-to-one correspondence, and can be spliced into the strip-shaped ribs 500 which are arranged approximately vertically, and the strip-shaped ribs 500 can greatly enhance the structural strength of the inner annular surfaces of the upper shell 100 and the lower shell 200, and increase the reliability of the transformer framework. The inner annular surface referred to in the present application means an annular side surface of the annular geometric body on a side near the center thereof.

In addition, as shown in fig. 4, a limiting portion 700 is formed between two adjacent ribs 500, and the wires 800 wound around the transformer bobbin can be respectively limited by the limiting portions 700 for one turn, so that the accuracy of the number of turns of winding can be ensured while the guiding winding uniformity is ensured. In addition, it should be emphasized that, in this embodiment, the ribs 500 are respectively disposed in the same number and one-to-one correspondence with the heat dissipation holes 400, so as to ensure that the wires 800 wound around the transformer framework can avoid the heat dissipation holes 400 to the maximum extent, and ensure that the heat dissipation holes 400 can perform a good heat dissipation function. In the present application, the arrangement of the ribs 500 and the heat dissipation holes 400 in a one-to-one correspondence means that the ribs 500 and the heat dissipation holes 400 are arranged in the same radial direction.

As shown in fig. 2 and fig. 3, in the present embodiment, the lower case 200 is provided with 3 first locking portions 210 and 3 second locking portions 220 on the end surface of the card, and the first locking portions 210 and the second locking portions 220 are connected to the card and the end surface of the lower case 200 in an alternating and non-connected manner in sequence. The upper case 100 is provided with 3 third locking portions 110 and 3 fourth locking portions 120 on the card and end surfaces, and the third locking portions 110 and the fourth locking portions 120 are alternately and alternately connected to the card and end surfaces of the upper case 100. When the upper case 100 and the lower case 200 are fastened together, the first fastening part 210 and the third fastening part 110, and the second fastening part 220 and the fourth fastening part 120 are fastened together, respectively. Of course, in another embodiment, the lower shell 200 may be provided with other numbers of the first fastening part 210 and the second fastening part 220, and the upper shell 100 may also be provided with other numbers of the third fastening part 110 and the fourth fastening part 120, which will not be described herein again.

It should be noted that the first fastening portion 210, the second fastening portion 220, the third fastening portion 110, and the fourth fastening portion 120 are all fastening hooks disposed on the outer annular surface. When the upper case 100 and the lower case 200 are fastened together, none of the first fastening part 210, the second fastening part 220, the third fastening part 110, and the fourth fastening part 120 extends to the outside or the chamber 600. The buckling part of the structure can ensure that no additional structure is arranged on the surfaces of the upper shell 100 and the lower shell 200, so that enough space is provided for the wire 800 to be wound on the transformer framework.

As shown in fig. 1 and fig. 2, in the present embodiment, an aperture 300 is formed between the engaging side surfaces of the first engaging portion 210 and the third engaging portion 110 and the engaging side surfaces of the second engaging portion 220 and the fourth engaging portion 120, and the aperture 300 is communicated with the cavity 600. The holes 300 not only can further enhance the heat dissipation of the transformer bobbin, but also the holes 300 can allow the first fastening portion 210, the third fastening portion 110, the second fastening portion 220, and the fourth fastening portion 120 to have a certain misalignment margin, so as to improve the efficiency of the upper case 100 and the lower case 200 during assembly.

In addition, in the present embodiment, the upper case 100 and the lower case 200 are geometric bodies having the same shape, size, and material, so that in the actual assembly process, the upper case 100 and the lower case 200 can be used together to facilitate assembly and storage, and the mold opening and production of the upper case 100 and the lower case 200 are greatly facilitated.

In addition, this application provides a transformer in addition, and this transformer adopts the transformer skeleton that this application provided, can guarantee that the transformer has good thermal diffusivity in long-term use.

It is to be understood that the various examples described above may be utilized in various orientations (e.g., inclined, inverted, horizontal, vertical, etc.) and in various configurations without departing from the principles of the present disclosure. The embodiments illustrated in the drawings are shown and described merely as examples of useful applications of the principles of the utility model, which is not limited to any specific details of these embodiments.

Of course, once the above description of representative embodiments is considered in great detail, those skilled in the art will readily appreciate that many modifications, additions, substitutions, deletions, and other changes may be made to these specific embodiments, and such changes are within the scope of the principles of the present invention. It is therefore intended that the foregoing detailed description be understood as being given by way of illustration and example only, the spirit and scope of the utility model being limited only by the appended claims and equivalents thereof.

Claims

1. The utility model provides a transformer skeleton, characterized in that, including being annular epitheca (100) and inferior valve (200), epitheca (100) and/or the transversal curved surface of personally submitting of inferior valve (200), epitheca (100) dispose in on inferior valve (200), just epitheca (100) with inferior valve (200) limit out and be annular and be located inside cavity (600) of transformer skeleton, epitheca (100) and/or inferior valve (200) are provided with a plurality of louvres (400) that are linked together with cavity (600).

2. The transformer bobbin of claim 1, wherein the heat dissipation holes (400) are bar-shaped slits, a plurality of the bar-shaped slits are uniformly arranged in a circumferential direction of the transformer bobbin, and each of the bar-shaped slits extends outward in a radial direction of the transformer bobbin.

3. The transformer bobbin according to claim 1, wherein a plurality of ribs (500) protruding outwards are provided on an outer surface of the upper shell (100) and/or the lower shell (200), the plurality of ribs (500) are uniformly arranged along a circumferential direction of the transformer bobbin, and a limiting portion (700) for limiting a lead (800) is formed between two adjacent ribs (500).

4. The transformer former of claim 3, wherein the number of ribs (500) is the same as the number of heat dissipation holes (400) and the ribs are arranged in a one-to-one correspondence.

5. The transformer bobbin according to claim 3, wherein the upper shell (100) and the lower shell (200) each have an inner annular surface, and the bead (500) is provided on the inner annular surface of the upper shell (100) and/or the lower shell (200).

6. Transformer bobbin according to any of the claims 1-5, wherein the upper shell (100) and the lower shell (200) are connected together by means of a snap fit.

7. The bobbin according to claim 6, wherein the upper case (100) and the lower case (200) each have an outer circumferential surface which is a card-and-end surface, the card-and-end surface of the lower case (200) is provided with a plurality of first locking parts (210) and second locking parts (220), and the first locking parts (210) and the second locking parts (220) are alternately and alternately arranged on the card-and-end surface of the lower case (200); the clamping and end face of the upper shell (100) is provided with a plurality of third clamping parts (110) and fourth clamping parts (120), and the third clamping parts (110) and the fourth clamping parts (120) are alternately arranged on the clamping and end face of the upper shell (100) at intervals; the lower shell (200) and the upper shell (100) are connected together in a manner that the first buckling part (210) and the third buckling part (110), the second buckling part (220) and the fourth buckling part (120) are buckled together respectively; the first buckling part (210), the second buckling part (220), the third buckling part (110) and the fourth buckling part (120) are all hooks.

8. The transformer bobbin according to claim 7, wherein an aperture (300) communicating with the cavity (600) is formed between the first latch portion (210) and the second latch portion (220).

9. The transformer skeleton according to claim 1, wherein the upper shell (100) and the lower shell (200) are geometric bodies having the same shape and size.

10. A transformer, comprising a bobbin and a wire (800) wound around the bobbin, wherein the bobbin is according to any one of claims 1 to 9.