CN220208710U

CN220208710U - Dry-type transformer

Info

Publication number: CN220208710U
Application number: CN202321459156.7U
Authority: CN
Inventors: 哈悦; 蒋改; 孙艳萍; 张妍; 沈平; 唐思捷; 张萧; 陈泰; 高薇; 李爱强; 唐思琪; 常夏伟; 杜浩亮; 张雷; 刘宁
Original assignee: Yinchuan Xin'anrui Electric Co ltd
Current assignee: Yinchuan Xin'anrui Electric Co ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-12-19
Anticipated expiration: 2033-06-08

Abstract

The application discloses a dry-type transformer belongs to transformer technical field. The second bracket of the dry-type transformer is opposite to the first bracket; the number of the nanocrystalline magnetic cores is multiple, the nanocrystalline magnetic cores are arranged between the first bracket and the second bracket, and the nanocrystalline magnetic cores are sequentially arranged at intervals; the first elastic anti-slip piece is arranged between the nanocrystalline magnetic core and the first bracket, and the second elastic anti-slip piece is arranged between the nanocrystalline magnetic core and the second bracket; one end of the fastening connecting piece is connected with the first bracket, the other end of the fastening connecting piece is connected with the second bracket, and the distance between the first bracket and the second bracket can be shortened through the fastening connecting piece so as to fix the nanocrystalline magnetic core. The technical scheme can solve the problems that the magnetic core of the nanocrystalline alloy material is easy to deform under stress due to fastening of the clamp, so that the performance of the magnetic core of the nanocrystalline alloy material is affected, and the loss of the dry-type transformer is increased.

Description

Dry-type transformer

Technical Field

The application belongs to the technical field of transformers, and particularly relates to a dry-type transformer.

Background

A transformer is a device for changing an ac voltage using the principle of electromagnetic induction, and its main components are a primary coil, a secondary coil, and a magnetic core. Transformers are commonly used for step-up and step-down voltages, matching impedances, safety isolation, etc.

The dry type transformer is a transformer in which a magnetic core and a winding are not immersed in insulating oil, and is widely used in high-rise buildings, airports, wharfs and the like. The magnetic core of the dry-type transformer can be made of nanocrystalline alloy material, and the magnetic core of the dry-type transformer needs to be fixed on the supporting structure through the clamp in the assembly process, however, as the magnetic core is made of nanocrystalline alloy material, the nanocrystalline alloy material is easy to deform under the stress of the clamp fastening, so that the performance of the magnetic core of the nanocrystalline alloy material is affected, and the loss of the dry-type transformer is increased.

Disclosure of Invention

An object of the embodiment of the present application is to provide a dry-type transformer, which can solve the problem that a magnetic core of a nanocrystalline alloy material is easily deformed due to clamping by a clamp, thereby affecting the performance of the magnetic core of the nanocrystalline alloy material and causing the increase of loss of the dry-type transformer.

In order to solve the technical problems, the application is realized as follows:

the embodiment of the application provides a dry-type transformer, which comprises:

a first bracket;

a second bracket opposite to the first bracket;

the number of the nanocrystalline magnetic cores is multiple, the nanocrystalline magnetic cores are arranged between the first bracket and the second bracket, and the nanocrystalline magnetic cores are sequentially arranged at intervals;

the first elastic anti-slip piece is arranged between the nanocrystalline magnetic core and the first bracket, and the second elastic anti-slip piece is arranged between the nanocrystalline magnetic core and the second bracket;

the device comprises a first bracket, a second bracket, a fastening connecting piece, a first bracket and a second bracket, wherein one end of the fastening connecting piece is connected with the first bracket, the other end of the fastening connecting piece is connected with the second bracket, and the first bracket and the second bracket can shorten the distance between the first bracket and the second bracket through the fastening connecting piece so as to fix the nanocrystalline magnetic core.

In this application embodiment, a plurality of nanocrystalline magnetic cores set up between first support and second support, and first elasticity antiskid spare sets up between nanocrystalline magnetic core and first support, and the second elasticity antiskid spare sets up between nanocrystalline magnetic core and second support. Under the condition that the first bracket and the second bracket are fixed to the nanocrystalline magnetic core through the fastening connecting piece, the nanocrystalline magnetic core can be prevented from deforming under the acting force of the first bracket and the second bracket due to the elasticity of the first elastic anti-slip piece and the second elastic anti-slip piece, so that the performance of the nanocrystalline magnetic core is guaranteed, and the performance of the dry-type transformer is improved.

Drawings

Fig. 1 is a schematic structural diagram of a dry-type transformer according to an embodiment of the present disclosure.

Reference numerals illustrate:

100-a first rack;

200-a second bracket;

300-nanocrystalline magnetic core;

400-a first resilient cleat;

500-a second resilient cleat.

600-fastening connectors, 610-connecting rods, 620-nuts;

700-fiberglass tape;

800-U-shaped connector;

900-insulating heat shrinkage tube.

Description of the embodiments

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The dry-type transformer provided in the embodiments of the present application will be described in detail below with reference to the accompanying drawings by means of specific embodiments and application scenarios thereof.

As shown in fig. 1, the embodiment of the present application provides a dry-type transformer including a first bracket 100, a second bracket 200, a nanocrystalline core 300, a coil, a first elastic anti-slip member 400, a second elastic anti-slip member 500, and a fastening connection member 600.

The first and second brackets 100 and 200 may be plate-shaped structural members, and the second bracket 200 is opposite to the first bracket 100. The coil is wound around the nanocrystalline magnetic core 300, the nanocrystalline magnetic core 300 is plural in number, the nanocrystalline magnetic cores 300 are disposed between the first bracket 100 and the second bracket 200, and the nanocrystalline magnetic cores 300 are sequentially arranged at intervals. The first elastic anti-slip member 400 is disposed between the nanocrystalline core 300 and the first holder 100, and the second elastic anti-slip member 500 is disposed between the nanocrystalline core 300 and the second holder 200. One end of the fastening connection member 600 is connected to the first bracket 100, the other end of the fastening connection member 600 is connected to the second bracket 200, and the first bracket 100 and the second bracket 200 can shorten the distance between the first bracket 100 and the second bracket 200 by the fastening connection member 600 to fix the nanocrystalline core 300.

When it is required to mount the nanocrystalline core 300 on the first and second holders 100 and 200, a plurality of nanocrystalline cores 300 may be first arranged between the first and second holders 100 and 200 at intervals, and then the distance between the first and second holders 100 and 200 is shortened by fastening the connection member 600 to fix the nanocrystalline core 300, so that the nanocrystalline core 300 may be easily assembled. When the nanocrystalline core 300 needs to be detached, the nanocrystalline core 300 may be detached from the first and second holders 100 and 200 by increasing the distance between the first and second holders 100 and 200 by fastening the connection member 600. It can be seen that the above manner can facilitate the installation and removal of the nanocrystalline core 300.

The nanocrystalline core 300 is easily slipped down due to less friction with the first and second holders 100 and 200. Friction between the nanocrystalline core 300 and the first and second holders 100 and 200 may be increased by the first and second elastic sliders 400 and 500, and slipping of the nanocrystalline core 300 may be prevented. And the first elastic anti-slip member 400 and the second elastic anti-slip member 500 have elasticity, so that the nanocrystalline core can be better protected. In alternative embodiments, the first resilient cleat 400 and/or the second resilient cleat 500 are silicone pads.

In the embodiment of the present application, the plurality of nanocrystalline magnetic cores 300 are disposed between the first bracket 100 and the second bracket 200, and the first elastic anti-slip member 400 is disposed between the nanocrystalline magnetic cores 300 and the first bracket 100, and the second elastic anti-slip member 500 is disposed between the nanocrystalline magnetic cores 300 and the second bracket 200. In the case where the first and second brackets 100 and 200 fix the nanocrystalline core 300 through the fastening connection 600, since the first and second elastic anti-slip members 400 and 500 have elasticity, it is possible to ensure that the nanocrystalline core 300 is not deformed under the force of the first and second brackets 100 and 200, thereby being advantageous to ensure the performance of the nanocrystalline core 300 and to improve the performance of the dry-type transformer.

To further ensure that the nanocrystalline core 300 does not slip, the dry-type transformer may further include a glass fiber ribbon 700, one end of the glass fiber ribbon 700 is connected to the first bracket 100, the other end of the glass fiber ribbon 700 is connected to the second bracket 200, and the glass fiber ribbon 700 supports the nanocrystalline core 300. The glass fiber tape 700 may form a support for the nanocrystalline core 300, thereby advantageously ensuring stability of the nanocrystalline core 300. The number of the glass fiber tapes 700 is plural, and the glass fiber tapes 700 are in one-to-one correspondence with the nanocrystalline cores 300, which is advantageous in ensuring the stability of each nanocrystalline core 300.

To facilitate connection of the fiberglass tape 700 to the first and/or second brackets 100, 200, the dry-type transformer may further include a U-shaped connector 800, the U-shaped connector 800 being disposed on one of the first and second brackets 100, 200, the fiberglass tape 700 being connected to the first and/or second brackets 100, 200 by the U-shaped connector 800. The fiberglass tape 700 may be wrapped around the U-shaped connector 800 so that the fiberglass tape 700 may be more conveniently attached to the U-shaped connector 800.

The fastening connection member 600 may include a connection rod 610 and a nut 620, at least one end of the connection rod 610 has external threads, the connection rod 610 is penetrated through the first and second brackets 100 and 200, the nut 620 is matched with the connection rod 610, and the nut 620 is disposed at a side of the first and/or second brackets 100 and 200 facing away from the nanocrystalline core 300. The operator can shorten and enlarge the distance between the first bracket 100 and the second bracket 200 by operating the nut 620 when installing and detaching the nanocrystalline core 300. The nut 620 and the connecting rod 610 are matched to facilitate the operation of operators.

The dry-type transformer may further include an insulation heat shrinkage tube 900, the insulation heat shrinkage tube 900 is sleeved on the connection rod 610, and the insulation heat shrinkage tube 900 is located between the first bracket 100 and the second bracket 200. The insulating heat shrinkage tube 810 can be closely attached to the connection rod 610 after heating, thereby having an insulating effect and preventing the connection rod 610 from conducting electricity.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A dry-type transformer, comprising:

a first bracket (100);

-a second support (200), said second support (200) being opposite to said first support (100);

the number of the nanocrystalline magnetic cores (300) is a plurality, the nanocrystalline magnetic cores (300) are arranged between the first bracket (100) and the second bracket (200), and the nanocrystalline magnetic cores (300) are sequentially arranged at intervals;

a first elastic anti-slip member (400) and a second elastic anti-slip member (500), wherein the first elastic anti-slip member (400) is arranged between the nanocrystalline magnetic core (300) and the first bracket (100), and the second elastic anti-slip member (500) is arranged between the nanocrystalline magnetic core (300) and the second bracket (200);

the device comprises a fastening connecting piece (600), wherein one end of the fastening connecting piece (600) is connected with a first bracket (100), the other end of the fastening connecting piece (600) is connected with a second bracket (200), and the first bracket (100) and the second bracket (200) can be shortened through the fastening connecting piece (600) so as to fix the nanocrystalline magnetic core (300).

2. The dry transformer of claim 1, wherein the first elastic anti-slip member (400) and/or the second elastic anti-slip member (500) is a silicone pad.

3. The dry transformer of claim 1, further comprising a fiberglass tape (700), one end of the fiberglass tape (700) being connected to the first bracket (100), the other end of the fiberglass tape (700) being connected to the second bracket (200), and the fiberglass tape (700) supporting the nanocrystalline core (300).

4. A dry transformer according to claim 3, wherein the number of glass fiber ribbons (700) is plural, and the glass fiber ribbons (700) are in one-to-one correspondence with the nanocrystalline core (300).

5. A dry transformer according to claim 3, further comprising a U-shaped connector (800), the U-shaped connector (800) being arranged at one of the first and second brackets (100, 200), the glass fibre ribbon (700) being connected to the first and/or second bracket (100, 200) by the U-shaped connector (800).

6. The dry transformer of claim 1, wherein the fastening connection member (600) comprises a connection rod (610) and a nut (620), at least one end of the connection rod (610) is provided with external threads, the connection rod (610) is arranged on the first bracket (100) and the second bracket (200) in a penetrating manner, the nut (620) is matched with the connection rod (610), and the nut (620) is arranged on one side of the first bracket (100) and/or the second bracket (200) away from the nanocrystalline magnetic core (300).

7. The dry transformer of claim 6, further comprising an insulating heat shrink tube (900), wherein the insulating heat shrink tube (900) is sleeved on the connecting rod (610), and wherein the insulating heat shrink tube (900) is located between the first bracket (100) and the second bracket (200).