CN214956375U

CN214956375U - Low-voltage coil of double low-voltage transformer and transformer

Info

Publication number: CN214956375U
Application number: CN202121324575.0U
Authority: CN
Inventors: 樊广耀; 梁瑞发; 朱志红; 范庆国
Original assignee: Henan Longjian Electric Equipment Co ltd
Current assignee: Henan Longjian Electric Equipment Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-11-30
Anticipated expiration: 2031-06-15

Abstract

The utility model provides a two low-voltage transformer low-voltage coil and transformer, two low-voltage transformer low-voltage coil, including the internal insulation section of thick bamboo, the outside of internal insulation section of thick bamboo is overlapped in proper order and is equipped with inlayer coil and outer coil, inlayer coil and outer coil are established ties, the one end that deviates from on the inlayer coil with the outer coil is connected with low pressure interior copper bar, the one end that deviates from on the outer coil with the inlayer coil is connected with first low pressure outer copper bar, be connected with second low pressure outer copper bar between inlayer coil and the outer coil; the utility model discloses in, through copper bar use with the outer copper bar of first low pressure, second low pressure respectively in the low pressure, can insert less number of turns, more number of turns making low voltage coil department, when high voltage coil department keeps unchangeable, through the access of the different number of turns of adjustment low voltage coil department, can make low voltage coil department export different voltage, can effectively reduce the use cost of enterprise.

Description

Low-voltage coil of double low-voltage transformer and transformer

Technical Field

The utility model belongs to the transformer, concretely relates to two low-voltage transformer low-voltage coil and transformer.

Background

A coil generally refers to a winding of a conductive wire in a loop shape, and a low voltage coil as a coil is widely used in a transformer.

In the prior art, for example, chinese utility model patent with application number CN201921552999.5 discloses an amorphous alloy dry-type transformer low-voltage coil, which includes: an insulating cylinder, edge copper bar and outer insulating layer outside copper bar and low pressure in copper bar, insulating layer between layer, low pressure are rolled up in proper order to the outer wall of insulating cylinder, and at least the both ends of insulating layer between layer are equipped with insulating end ring, are equipped with a plurality of interval arrangement's gas duct board between the insulating layer between the layer, outer insulating layer upper end, and are close to the outer copper bar side of low pressure is equipped with the insulating tube, sets up the insulating tube through the outer insulating layer upper end, and what the temperature controller probe can be very convenient packs into and takes out, therefore has improved the product installation greatly and has maintained convenient.

The low-voltage coil structure of the existing transformer is generally shown in the prior art, and the transformer can only output one voltage when in use, but two transformers outputting different voltages are required to be prepared when two different voltages are required to be used, so that the use cost of users is increased.

Therefore, a dual low voltage transformer low voltage coil and a transformer capable of outputting two different voltages and reducing the equipment cost are needed to be designed to solve the technical problems faced at present.

Disclosure of Invention

To the not enough that exists among the prior art, the utility model provides a can export two kinds of different voltages, reduce equipment cost's two low-voltage transformer low-voltage coil and transformer.

The technical scheme of the utility model is that: two low-voltage transformer low-voltage coil, including the inner insulating cylinder, the outside of inner insulating cylinder is overlapped in proper order and is equipped with inlayer coil and outer coil, inlayer coil and outer coil are established ties, on the inlayer coil with the one end that outer coil deviates from mutually is connected with copper bar in the low pressure, on the outer coil with the one end that inlayer coil deviates from mutually is connected with the outer copper bar of first low pressure, the inlayer coil with be connected with the outer copper bar of second low pressure between the outer coil.

The top of copper bar, the outer copper bar of first low pressure and the outer copper bar of second low pressure all outside buckle in the low pressure, the top of copper bar in the low pressure with between the top of the outer copper bar of second low pressure, the top of the outer copper bar of first low pressure with all be provided with the insulator between the top of the outer copper bar of second low pressure.

And air duct supporting strips are uniformly arranged between the inner-layer coil and the outer-layer coil and surround the outer side of the inner-layer coil.

And an outer insulating layer is arranged on the outer side of the outer-layer coil.

And end insulating rings are arranged at the upper end part and the lower end part of the inner coil and the outer coil.

The transformer comprises a double low-voltage transformer low-voltage coil; two low-voltage transformer low-voltage coil include the inner insulating cylinder, the outside of inner insulating cylinder is overlapped in proper order and is equipped with inlayer coil and outer coil, inlayer coil and outer coil are established ties, on the inlayer coil with the one end that outer coil deviates from mutually is connected with copper bar in the low pressure, on the outer coil with the one end that inlayer coil deviates from mutually is connected with the outer copper bar of first low pressure, the inlayer coil with be connected with the outer copper bar of second low pressure between the outer coil.

The utility model has the advantages that: the utility model discloses in, through copper bar use with the outer copper bar of first low pressure, second low pressure respectively in the low pressure, can insert less number of turns, more number of turns making low voltage coil department, when high voltage coil department keeps unchangeable, through the access of the different number of turns of adjustment low voltage coil department, can make low voltage coil department export different voltage, can effectively reduce the use cost of enterprise.

Drawings

Fig. 1 is one of the structural schematic diagrams of the low-voltage coil of the middle-double low-voltage transformer of the present invention.

Fig. 2 is a second schematic structural diagram of a low-voltage coil of a medium-voltage and low-voltage transformer according to the present invention.

Fig. 3 is a schematic structural diagram of the transformer of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the invention, its application, or uses. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments are to be construed as merely illustrative, and not as limitative, unless specifically stated otherwise.

The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

As shown in fig. 1 to 2, the low-voltage coil of the dual low-voltage transformer comprises an inner insulating cylinder 1, an inner coil 7 and an outer coil 8 are sequentially sleeved outside the inner insulating cylinder 1, the inner coil 7 and the outer coil are connected in series 8, one end of the inner coil 7, which is away from the outer coil 8, is connected with a low-voltage inner copper bar 2, one end of the outer coil 8, which is away from the inner coil 7, is connected with a first low-voltage outer copper bar 3, and a second low-voltage outer copper bar is connected between the inner coil 7 and the outer coil 8; in the embodiment, the low-voltage inner copper bar 2 is respectively matched with the first low-voltage outer copper bar 3 and the second low-voltage outer copper bar 4 for use, so that a low-voltage coil can be connected with a small number of turns and a large number of turns, when the high-voltage coil is kept unchanged, the low-voltage coil can output different voltages by adjusting the connection of different turns at the low-voltage coil, and the use cost of an enterprise can be effectively reduced; in addition, which two voltages need to be output can be adjusted according to actual needs, for example, two voltages of 400V and 480V can be output, and the setting of the number of turns of the coil is well known to those skilled in the art, and therefore, the detailed description is omitted.

In order to be convenient for connecting the low-voltage coil for use when in use, the top ends of the low-voltage inner copper bar 2, the first low-voltage outer copper bar 3 and the second low-voltage outer copper bar 4 are bent outwards, specifically twice bending is carried out, the bending directions of the twice bending are opposite to that of the two sides, the top ends of the first low-voltage outer copper bar 3 and the second low-voltage outer copper bar 4 are still parallel, insulators 9 are arranged between the top end of the low-voltage inner copper bar 2 and the top end of the second low-voltage outer copper bar 4 and between the top end of the first low-voltage outer copper bar 3 and the top end of the second low-voltage outer copper bar 4, through holes are correspondingly formed in the top ends of the low-voltage inner copper bar 2, the first low-voltage outer copper bar 3 and the second low-voltage outer copper bar 4, and the low-voltage inner copper bar 2, the first low-voltage outer copper bar 3 and the second low-voltage outer copper bar 4 are fixedly connected with an insulator.

In order to ensure a good heat dissipation effect of the low-voltage coil, air duct supporting strips 5 are uniformly arranged between the inner-layer coil 7 and the outer-layer coil 8 and surround the outer side of the inner-layer coil 7, and a gap is formed between every two adjacent air duct supporting strips 5 under the supporting action of the air duct supporting strips 5, so that air flow can pass through the air duct supporting strips, and the low-voltage coil is subjected to a heat dissipation effect.

In order to improve the insulation effect of the low-voltage coil, an outer insulation layer 6 is arranged on the outer side of the outer-layer coil 8, and the outer insulation layer 6 can ensure the insulation effect of the outer side of the outer-layer coil 8; the upper end part and the lower end part of the inner coil 7 and the outer coil 8 are both provided with end insulating rings 11.

In the present embodiment, a transformer 100 is also disclosed, and as shown in fig. 3, the transformer 100 has the low-voltage coil of the dual low-voltage transformer in the above-mentioned embodiment.

Thus far, various embodiments of the present invention have been described in detail. Some details which are well known in the art have not been described in order to avoid obscuring the concepts of the present invention. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the 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. The utility model provides a two low-voltage transformer low-voltage coil, its characterized in that, includes the inner insulating cylinder, the outside of inner insulating cylinder is overlapped in proper order and is equipped with inlayer coil and outer coil, inlayer coil and outer coil are established ties, on the inlayer coil with the one end that outer coil deviates from mutually is connected with copper bar in the low pressure, on the outer coil with the one end that inlayer coil deviates from mutually is connected with the outer copper bar of first low pressure, the inlayer coil with be connected with the outer copper bar of second low pressure between the outer coil.

2. The low-voltage coil of the double low-voltage transformer of claim 1, wherein: the top of copper bar, the outer copper bar of first low pressure and the outer copper bar of second low pressure all outside buckle in the low pressure, the top of copper bar in the low pressure with between the top of the outer copper bar of second low pressure, the top of the outer copper bar of first low pressure with all be provided with the insulator between the top of the outer copper bar of second low pressure.

3. The low-voltage coil of the double low-voltage transformer of claim 1, wherein: and air duct supporting strips are uniformly arranged between the inner-layer coil and the outer-layer coil and surround the outer side of the inner-layer coil.

4. The low-voltage coil of the double low-voltage transformer of claim 1, wherein: and an outer insulating layer is arranged on the outer side of the outer-layer coil.

5. The low-voltage coil of the double low-voltage transformer of claim 1, wherein: and end insulating rings are arranged at the upper end part and the lower end part of the inner coil and the outer coil.

6. A transformer is characterized by comprising a low-voltage coil of a double low-voltage transformer; two low-voltage transformer low-voltage coil include the inner insulating cylinder, the outside of inner insulating cylinder is overlapped in proper order and is equipped with inlayer coil and outer coil, inlayer coil and outer coil are established ties, on the inlayer coil with the one end that outer coil deviates from mutually is connected with copper bar in the low pressure, on the outer coil with the one end that inlayer coil deviates from mutually is connected with the outer copper bar of first low pressure, the inlayer coil with be connected with the outer copper bar of second low pressure between the outer coil.

7. The transformer of claim 6, wherein: the top of copper bar, the outer copper bar of first low pressure and the outer copper bar of second low pressure all outside buckle in the low pressure, the top of copper bar in the low pressure with between the top of the outer copper bar of second low pressure, the top of the outer copper bar of first low pressure with all be provided with the insulator between the top of the outer copper bar of second low pressure.

8. The transformer of claim 6, wherein: and air duct supporting strips are uniformly arranged between the inner-layer coil and the outer-layer coil and surround the outer side of the inner-layer coil.

9. The transformer of claim 6, wherein: and an outer insulating layer is arranged on the outer side of the outer-layer coil.

10. The transformer of claim 6, wherein: and end insulating rings are arranged at the upper end part and the lower end part of the inner coil and the outer coil.