CN210110482U

CN210110482U - Transformer device

Info

Publication number: CN210110482U
Application number: CN201921210795.3U
Authority: CN
Inventors: 陈明中; 何水有; 滕欣欣; 范志刚; 李良兵
Original assignee: VDSON (HZ) ELECTRONICS Co Ltd
Current assignee: VDSON (HZ) ELECTRONICS Co Ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-02-21
Anticipated expiration: 2029-07-29

Abstract

The utility model discloses a transformer, through setting up skeleton, magnetic core external member, protection piece and around the turn. In the practical application process, the arrangement of the sealant layer can ensure the contact reliability between the main magnetic core and the auxiliary magnetic core, namely the main magnetic core and the auxiliary magnetic core are not easy to separate from each other and fall off from the transformer, so that the electrical property of the transformer is ensured; in addition, the winding turns are formed by winding n copper foil tapes and n insulating tapes, the conductive capacity of the copper foil tapes is higher than that of copper wires, and the copper foil tapes with less quantity can be adopted, so that the structure of the transformer is more compact, and meanwhile, the insulating tapes are arranged between every two adjacent copper foil tapes, so that the electrical property of the transformer is further improved; moreover, the magnetic core external member can be protected in the setting of protection piece, damages when preventing that the magnetic core external member from suffering external force, and then has influenced the stability of transformer.

Description

Transformer device

Technical Field

The utility model relates to a transformer technical field especially relates to a transformer.

Background

At present, a transformer is a device for changing an ac voltage using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core. The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization, and the like. According to the application, the method can be divided into: power transformers and special transformers. The circuit symbol is usually T as the beginning of the number, e.g., T01, T201, etc. The transformer transformation principle was first discovered by faraday, but not started to be put into practical use until the 80 s of the nineteenth century. In the competition that a power plant should output both direct current and alternating current, it is one of its advantages to be able to use a transformer for alternating current. The transformer can convert the electric energy into a high-voltage low-current form and then convert the electric energy back, so that the loss of the electric energy in the transmission process is greatly reduced, and the economic transmission distance of the electric energy is further. Therefore, the power plant can be built at a place far away from the power utilization place. Most of the world's power goes through a series of transformers before it finally reaches the consumer.

For the existing transformer, the performance of the transformer is determined by the winding turns to a great extent, but for the winding turns in the existing transformer, the winding turns are formed by winding copper wires and adhesive tapes, and because the copper wires are small in size and very limited in conductive performance, a large number of copper wires are required to be wound to form the winding turns, so that the volume of the winding turns can be increased to a certain extent, namely the whole volume of the transformer is increased, and meanwhile, the copper wires can limit the electrical performance of the transformer to a certain extent; in addition, for the existing transformer, two magnetic cores are usually arranged in the transformer, after the transformer is assembled, a layer of adhesive tape needs to be attached to the surface of the transformer, firstly, the two magnetic cores can be ensured to be attached and contacted with each other and cannot be separated, secondly, the sealing effect is achieved, but the transformer can generate certain heat during working, if the heat is too high, the heat can reduce the adhesive force of the adhesive tape, the sealing effect on the transformer can be slowly reduced, and finally, the two magnetic cores are attached and contacted with each other and fall off from the transformer; moreover, the existing transformer does not protect the magnetic core, and when the magnetic core is subjected to external force, the magnetic core may be damaged, so that the working stability of the transformer is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, providing a stable electrical property, the structure is comparatively compact, and the magnetic core is difficult for droing and can prevent the transformer that the magnetic core damaged when suffering external force.

The purpose of the utility model is realized through the following technical scheme:

a transformer, comprising:

the magnetic column flange pipe is arranged at the middle position of the framework, and a plurality of pins are arranged at the bottom position of the framework;

the magnetic core kit comprises a main magnetic core, an auxiliary magnetic core and a glue sealing layer, wherein a main magnetic column is arranged at the middle position of the main magnetic core, a main magnetic locking part is arranged at the side position of the main magnetic core, an auxiliary magnetic column is arranged at the middle position of the auxiliary magnetic core, an auxiliary magnetic locking part is arranged at the side position of the auxiliary magnetic core, the main magnetic core and the auxiliary magnetic core are arranged on the framework, so that the main magnetic column and the auxiliary magnetic column are respectively penetrated through the magnetic column flange tube and are in close contact with each other, the main magnetic locking part and the auxiliary magnetic locking part are in close contact with each other, and the glue sealing layer is respectively connected with the main magnetic locking part and the auxiliary magnetic locking part;

the protection sheet comprises a left U-shaped sheet and a right U-shaped sheet, the left U-shaped sheet is arranged on the framework, the left U-shaped sheet covers the main magnetic core, the right U-shaped sheet is arranged on the framework, and the right U-shaped sheet covers the auxiliary magnetic core; and

and the winding turns comprise n copper foil tapes and n insulating tapes, the n copper foil tapes are sequentially stacked and wound on the magnetic column flange pipe, the nth insulating tape is wound on the nth copper foil tape, wherein n is more than or equal to 1 and is a positive integer.

In one embodiment, the wire winding turn further comprises n adhesive tapes, and the n adhesive tapes wrap the n copper foil tapes in a one-to-one correspondence manner.

In one embodiment, the copper foil strip has a thickness in the range of 0.025mm to 0.175 mm.

In one embodiment, the width of the copper foil strip is 28 mm.

In one embodiment, the framework is provided with a left positioning protrusion, the left U-shaped piece is provided with a left positioning hole, and the left U-shaped piece is arranged on the framework so that the left positioning protrusion falls into the left positioning hole and abuts against the side wall of the left positioning hole.

In one embodiment, a right positioning protrusion is arranged on the framework, a right positioning hole is formed in the right U-shaped piece, and the right U-shaped piece is arranged on the framework so that the right positioning protrusion falls into the right positioning hole and abuts against the side wall of the right positioning hole.

In one embodiment, 26 pins are disposed on the frame.

In one embodiment, the magnetic cylinder flange tube has a circular cross-section.

In one embodiment, the primary detent has a rectangular cross-section.

In one embodiment, the secondary detent has a rectangular cross-section.

The utility model discloses compare in prior art's advantage and beneficial effect as follows:

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a framework, a magnetic core set and a protective sheet according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a wire winding turn according to an embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention 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.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a transformer 10 includes a bobbin 100, a core assembly 200, a protective sheet 300, and a winding turn 400.

Thus, it should be noted that the framework 100 plays a role in carrying and installing; the magnetic core sleeve 200 is matched with the winding wire 400 for voltage transformation; the protective sheet 300 plays a role of protection to prevent the magnetic core assembly 200 from being damaged.

Referring to fig. 1, a magnetic pillar flange tube 110 is disposed at a middle position of a framework 100, and a plurality of pins 120 are disposed at a bottom position of the framework 100.

Thus, it should be noted that the magnetic pillar flange tube 110 serves as a receiving means, and the winding turns 400 are wound on the magnetic pillar flange tube 110.

Referring to fig. 1, the core assembly 200 includes a main core 210, a sub-core 220 and a sealant layer, the main core 210 has a main magnetic pillar 211 at a middle position, the main core 210 has a main magnetic locking portion 212 at a side position, the sub-core 220 has a sub-magnetic pillar 221 at a middle position, the sub-core 220 has a sub-magnetic locking portion 222 at a side position, and when the main core 210 and the sub-core 220 are both disposed on the framework 100, the main magnetic pillar 211 and the sub-magnetic pillar 221 both penetrate through the magnetic pillar flange tube 110 and are in close contact with each other, the main magnetic locking portion 212 and the sub-magnetic locking portion 222 are in close contact with each other, and the sealant layer is connected to the main magnetic locking portion 212 and the sub-magnetic locking portion 222 respectively.

In this way, it should be noted that the main core 210 and the auxiliary core 220 both function to enhance the magnetic coupling around the wire turns 400, in order to reduce eddy current and hysteresis loss in the magnetic core; the arrangement of the sealant layer can ensure the contact reliability between the main magnetic core 210 and the auxiliary magnetic core 220, that is, the main magnetic core 210 and the auxiliary magnetic core 220 are not easily separated from each other and are separated from the transformer 10, thereby ensuring the electrical performance of the transformer.

Referring to fig. 1, the guard plate 300 includes a left U-shaped plate 310 and a right U-shaped plate 320, the left U-shaped plate 310 is disposed on the frame 100, the left U-shaped plate 310 covers the main magnetic core 210, the right U-shaped plate 320 is disposed on the frame 100, and the right U-shaped plate 320 covers the sub-magnetic core 220.

In this way, the protection sheet 300 can protect the magnetic core assembly 200, and prevent the magnetic core assembly 200 from being damaged by external force, which may affect the stability of the transformer 10.

Referring to fig. 2, the winding turn 400 includes n copper foil tapes 410 and n insulating tapes 420, the n copper foil tapes 410 are sequentially stacked and wound on the magnetic pillar flanged pipe 110, and the nth insulating tape 420 is wound on the nth copper foil tape 410, wherein n is greater than or equal to 1 and n is a positive integer.

In this manner, in order to better understand the internal structure of the winding turn 400, for example, the winding turn 400 includes 2 copper foil strips 410 and 2 insulating strips 420, the 1 st copper foil strip 410 is firstly wound on the magnetic pillar flanged pipe 110, then the 1 st insulating strip 420 is wound on the 1 st copper foil strip 410, then the 2 nd copper foil strip 410 is wound on the 1 st insulating strip 420, and finally the 2 nd insulating strip 420 is wound on the 2 nd copper foil strip 410, so that the winding operation of the winding turn 400 is completed, and the specific number of the copper foil strips 410 and the insulating strips 420 can be flexibly set according to the actual situation.

It should be further noted that, since the wire turns 400 are formed by winding n copper foil strips 410 and n insulating strips 420, the conductive capability of the copper foil strips 410 is stronger than that of copper wires, and a smaller number of copper foil strips 410 can be adopted, i.e. the structure of the transformer 10 is more compact, and meanwhile, since the insulating strips 420 are arranged between two adjacent copper foil strips 410, the electrical performance of the transformer 10 is further improved.

Further, in one embodiment, the winding turn 400 further includes n tapes, and the n tapes wrap the n copper foil tapes 410 in a one-to-one correspondence.

Therefore, it should be noted that each copper foil strip 410 is wrapped with an adhesive tape, which can further improve the electrical performance of the transformer 10.

Specifically, in one embodiment, the copper foil strip 410 has a thickness in the range of 0.025mm to 0.175 mm; the width of the copper foil strip was 28 mm.

As described above, the thickness range and the width of the copper foil strip 410 can be flexibly set according to actual conditions, and the thickness range is preferably 0.025mm to 0.175mm, and the width is preferably 28 mm.

Further, referring to fig. 1 again, in an embodiment, the frame 100 is provided with a left positioning protrusion 130, the left U-shaped piece 310 is provided with a left positioning hole 311, and when the left U-shaped piece 310 is disposed on the frame 100, the left positioning protrusion 130 falls into the left positioning hole 311, and the left positioning protrusion 130 abuts against a side wall of the left positioning hole 311.

In this way, it should be noted that the installation efficiency of the left U-shaped piece 310 can be improved by the arrangement of the left positioning protrusion 130 and the opening of the left positioning hole 311, and the left positioning protrusion 130 has the effect of pre-positioning.

Further, referring to fig. 1 again, in an embodiment, the frame 100 is provided with a right positioning protrusion 140, the right U-shaped piece 320 is provided with a right positioning hole 321, and when the right U-shaped piece 320 is disposed on the frame 100, the right positioning protrusion 140 falls into the right positioning hole 321, and the right positioning protrusion 140 abuts against a side wall of the right positioning hole 321.

In this way, it should be noted that the installation efficiency of the right U-shaped piece 320 can be improved by the arrangement of the right positioning protrusion 140 and the opening of the right positioning hole 321, and the right positioning protrusion 140 has the effect of pre-positioning.

It should be noted that, in order to more stably arrange the left U-shaped piece 310 and the right U-shaped piece 320 on the framework 100, when the left U-shaped piece 310 and the right U-shaped piece 320 are arranged on the framework 100, an assembler can additionally add a layer of glue between the left U-shaped piece 310, the right U-shaped piece 320 and the framework 100 to enhance the structural stability.

Specifically, in one embodiment, 26 pins 120 are provided on the backbone 100.

Thus, it should be noted that the specific number of the pins 120 can be flexibly set according to the actual situation, and is preferably 26 pins 120.

Specifically, in one embodiment, the magnetic cylinder flange tube 110 has a circular cross-section; the main latching magnetic part 212 has a rectangular cross section; the secondary latching magnetic part 222 has a rectangular cross section.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A transformer, comprising:

2. The transformer of claim 1, wherein the wire winding turns further comprise n adhesive tapes, and the n adhesive tapes wrap the n copper foil tapes in a one-to-one correspondence.

3. The transformer of claim 1, wherein the copper foil strip has a thickness in a range of 0.025mm to 0.175 mm.

4. The transformer of claim 1, wherein the copper foil strip has a width of 28 mm.

5. The transformer of claim 1, wherein the frame is provided with a left positioning protrusion, the left U-shaped piece is provided with a left positioning hole, and when the left U-shaped piece is arranged on the frame, the left positioning protrusion falls into the left positioning hole and abuts against a side wall of the left positioning hole.

6. The transformer according to claim 1, wherein the frame is provided with a right positioning protrusion, the right U-shaped piece is provided with a right positioning hole, and when the right U-shaped piece is arranged on the frame, the right positioning protrusion falls into the right positioning hole and abuts against a side wall of the right positioning hole.

7. The transformer of claim 1, wherein 26 of the pins are disposed on the bobbin.

8. The transformer of claim 1, wherein the magnetic column flange tube has a circular cross-section.

9. The transformer of claim 1, wherein the primary latching section has a rectangular cross-section.

10. The transformer of claim 1, wherein the secondary latching section has a rectangular cross-section.