CN219123059U

CN219123059U - Tightening structure of pull rivet nut of transformer

Info

Publication number: CN219123059U
Application number: CN202223413053.5U
Authority: CN
Inventors: 张艳; 李庆; 尚和平; 李乐; 李向阳
Original assignee: Shaanxi Wishful Transformer Manufacturing Co ltd
Current assignee: Shaanxi Wishful Transformer Manufacturing Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-06-02
Anticipated expiration: 2032-12-20

Abstract

The utility model provides a tension rivet nut fastening structure of a transformer, which belongs to the technical field of transformers and comprises an iron core, wherein a coil is connected to the iron core, first clamping pieces are connected to two sides of the upper end of the iron core, second clamping pieces are connected to two sides of the lower end of the iron core, connecting plates are connected to two ends between the two first clamping pieces, fixing pieces are connected between the connecting plates and the first clamping pieces, and the connecting plates are fixed on the first clamping pieces through the fixing pieces; the fixing piece comprises a nut fixedly connected to the first clamping piece, and a screw rod which sequentially penetrates through the connecting plate and the first clamping piece and is connected with the nut is connected to the connecting plate; according to the utility model, the screw rod can be rotationally fixed on the screw rod by utilizing the arrangement of the nut welded on the first clamping piece, so that the connection plate is fixed on the first clamping piece, the common condition that the screw rod needs to be manually screwed on the screw rod is changed, the condition that the screw rod is easy to fall into a coil to cause insulation hidden trouble when the screw rod is arranged on the screw rod is solved, and the short circuit burnout of a transformer is prevented.

Description

Tightening structure of pull rivet nut of transformer

Technical Field

The utility model relates to the technical field of transformers, in particular to a tightening structure of a tension rivet nut of a transformer.

Background

A transformer is a device for changing an ac voltage using the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformers), and the like. The transformer can be divided into: distribution transformers, power transformers, fully sealed transformers, combination transformers, dry transformers, oil immersed transformers, single-phase transformers, electric furnace transformers, rectifier transformers, reactors, anti-interference transformers, lightning protection transformers, box-type transformer test transformers, corner transformers, heavy current transformers, excitation transformers and the like.

At present, the first clamping piece is generally connected with the connecting plate through a bolt (as shown in fig. 4), and the nut is manually screwed down to be installed on the screw rod under the common condition, however, when the nut is installed in such a connecting mode, a person holds the nut by hand, sometimes the situation that the nut falls down from the hand without steady holding occurs, the potential insulation hazard caused by falling into the coil occurs, and the transformer is burnt out due to short circuit, so that the transformer rivet nut fastening structure is provided to solve the problem.

Disclosure of Invention

In view of the above, the utility model provides a tightening structure of a transformer rivet nut, which changes the common condition that the nut needs to be manually screwed on a screw rod, solves the problem that the nut is easy to fall into a coil to cause insulation hidden trouble when being arranged on the screw rod, and prevents the transformer from being burnt out due to short circuit.

In order to solve the technical problems, the utility model provides a tension rivet nut fastening structure of a transformer, which comprises an iron core, wherein two sides of the upper end of the iron core are connected with first clamping pieces, two sides of the lower end of the iron core are connected with second clamping pieces, two ends between the two first clamping pieces are connected with connecting plates, a fixing piece is connected between the connecting plate and the first clamping pieces, and the connecting plates are fixed on the first clamping pieces through the fixing piece;

the fixing piece comprises a nut fixedly connected to the first clamping piece, and a screw rod which sequentially penetrates through the connecting plate and the first clamping piece and is connected with the nut is connected to the connecting plate.

Further, a flat pad sleeved on the screw rod is connected between the screw rod and the first clamping piece.

Further, a spring pad sleeved on the screw rod is connected between the flat pad and the screw rod.

Further, the first clamping piece and the second clamping piece are both U-shaped.

Further, two ends between the two first clamping pieces and two ends between the two second clamping pieces are fixed on the iron core through bolts.

Further, the two bolts are symmetrically arranged.

Further, a threaded rod for realizing position definition between the first clamping piece and the second clamping piece is arranged between the first clamping piece and the second clamping piece.

Further, the fixing piece is an anti-corrosion metal fixing piece.

The technical scheme of the utility model has the following beneficial effects:

1. the screw rod can be rotationally fixed on the screw rod by utilizing the arrangement of the nut welded on the first clamping piece, so that the connecting plate is fixed on the first clamping piece, the condition that the common screw rod is manually screwed on the screw rod is changed, the problem that the screw rod is easy to fall into a coil to cause insulation hidden trouble when being installed on the screw rod is solved, and the short circuit burnout of a transformer is prevented.

2. The cooperation between flat pad and the bullet pad can increase the stability that screw rod and nut are connected, avoids the screw rod not hard up.

3. The bolt and the iron core can enable the first clamping piece and the second clamping piece to be fixed on the iron core, the arrangement of the screw rod can limit the distance between the first clamping piece and the second clamping piece, and the positions of the first clamping piece and the second clamping piece are prevented from moving.

Drawings

FIG. 1 is a schematic front view of a fastening structure of the present utility model;

FIG. 2 is a schematic side view of a fastening structure of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A in accordance with the present utility model;

fig. 4 is a schematic view of the original fixing structure of the present utility model.

In the figure: 1. an iron core; 2. a coil; 3. a first clamping piece; 4. a second clamping piece; 5. a bolt; 6. a connecting plate; 7. a fixing member; 71. a screw; 72. a nut; 73. a flat pad; 74. a spring pad; 8. a threaded rod.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 3 of the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the utility model, fall within the scope of protection of the utility model.

As shown in fig. 1-3: in one embodiment, a transformer rivet nut fastening structure comprises an iron core 1, a coil 2 is wound on the iron core 1, first clamping pieces 3 are connected to two sides of the upper end of the iron core 1, second clamping pieces 4 are connected to two sides of the lower end of the iron core 1, connecting plates 6 are connected to two ends between the two first clamping pieces 3, fixing pieces 7 are connected between the connecting plates 6 and the first clamping pieces 3, the fixing pieces 7 are anti-corrosion metal fixing pieces, the service life of the fixing pieces 7 can be prolonged, and the connecting plates 6 are fixed on the first clamping pieces 3 through the fixing pieces 7;

the fixing member 7 includes a nut 72 welded below the first clamp member 3, and a screw 71 penetrating the connecting plate 6 and the first clamp member 3 in order and screwed with the nut 72 is connected to the connecting plate 6.

In this embodiment, the screw 71 can be rotationally fixed on the nut 72 by using the arrangement of the nut 72 welded on the first clamping member 3, so as to fix the connecting plate 6 on the first clamping member 3, thereby changing the common condition that the nut 72 needs to be screwed on the screw 71, solving the problem that the nut 72 is easy to drop into the coil 2 when being mounted on the screw 71, causing hidden insulating trouble, and preventing the short circuit of the transformer from being burnt.

As shown in fig. 3, in one embodiment, a flat pad 73 sleeved on the screw 71 is connected between the screw 71 and the first clamping member 3, and a spring pad 74 sleeved on the screw 71 is connected between the flat pad 73 and the screw 71.

In this embodiment, the engagement between the flat pad 73 and the spring pad 74 can increase the stability of the connection of the screw 71 with the nut 72, avoiding loosening of the screw 71.

As shown in fig. 1 and 2, in one embodiment, the first clamping member 3 and the second clamping member 4 are each U-shaped, two ends between the two first clamping members 3 and two ends between the two second clamping members 4 are fixed on the iron core 1 through bolts 5, the two bolts 5 are symmetrically arranged, and a threaded rod 8 for realizing position definition between the first clamping member 3 and the second clamping member 4 is arranged between the first clamping member 3 and the second clamping member 4.

In this embodiment, the bolt 5 and the iron core 1 can fix the first clamp 3 and the second clamp 4 on the iron core 1, wherein the arrangement of the threaded rod 8 can limit the distance between the first clamp 3 and the second clamp 4, so as to avoid the position movement of the first clamp 3 and the second clamp 4, and in addition, the shape design of the first clamp 3 and the second clamp 4U can facilitate the installation of the bolt 5 and the threaded rod 8.

In the present utility model, unless explicitly specified and defined otherwise, for example, it may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims

1. The utility model provides a transformer draws and rivets nut fastening structure, includes iron core (1), be connected with coil (2), its characterized in that on iron core (1): the iron core is characterized in that first clamping pieces (3) are connected to two sides of the upper end of the iron core (1), second clamping pieces (4) are connected to two sides of the lower end of the iron core (1), connecting plates (6) are connected to two ends between the two first clamping pieces (3), fixing pieces (7) are connected between the connecting plates (6) and the first clamping pieces (3), and the connecting plates (6) are fixed to the first clamping pieces (3) through the fixing pieces (7);

the fixing piece (7) comprises a nut (72) fixedly connected to the first clamping piece (3), and the connecting plate (6) is connected with a screw rod (71) which sequentially penetrates through the connecting plate (6) and the first clamping piece (3) and is connected with the nut (72).

2. The transformer blind rivet nut fastening structure as set forth in claim 1, wherein: a flat pad (73) sleeved on the screw rod (71) is connected between the screw rod (71) and the first clamping piece (3).

3. The transformer blind rivet nut fastening structure as set forth in claim 2, wherein: an elastic pad (74) sleeved on the screw (71) is connected between the flat pad (73) and the screw (71).

4. The transformer blind rivet nut fastening structure as set forth in claim 1, wherein: the first clamping piece (3) and the second clamping piece (4) are U-shaped.

5. The transformer blind rivet nut fastening structure as set forth in claim 4, wherein: both ends between the two first clamping pieces (3) and both ends between the two second clamping pieces (4) are fixed on the iron core (1) through bolts (5).

6. The transformer blind rivet nut fastening structure as set forth in claim 5, wherein: the two bolts (5) are symmetrically arranged.

7. The transformer blind rivet nut fastening structure as set forth in claim 4, wherein: a threaded rod (8) for realizing position definition between the first clamping piece (3) and the second clamping piece (4) is arranged between the first clamping piece (3) and the second clamping piece (4).

8. The transformer blind rivet nut fastening structure as set forth in claim 1, wherein: the fixing piece (7) is an anti-corrosion metal fixing piece.