CN216528356U

CN216528356U - High security power transformer core subassembly

Info

Publication number: CN216528356U
Application number: CN202121863263.7U
Authority: CN
Inventors: 董刚
Original assignee: Hefei Qixing Electric Appliance Co ltd
Current assignee: Hefei Qixing Electric Appliance Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-05-13
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses a high-safety power transformer iron core assembly which comprises an iron core and a winding, wherein the upper end surface and the lower end surface of the winding are respectively provided with the iron core; the side surface of the winding is provided with a winding slot for winding a coil; the upper end surface and the lower end surface of the winding are provided with an insulating plate; a rectangular through groove is formed in the middle of the upper end face of the winding; one side of the upper surface of the insulating plate is provided with a junction box; a wiring groove is arranged in the middle of the junction box; the lower surface of the wiring groove is provided with a plurality of through hole in parallel; a plurality of through wire slots are arranged on the outer side surface of the wire slot side by side; the upper surface of the junction box is hinged with a box cover. The wiring terminal of the transformer is wrapped and protected by arranging the wiring box on the winding, so that electric leakage caused by exposure of the wiring position is avoided, the safety of the transformer is ensured, and the iron core is installed and fixed by arranging the fixing plate, so that the transformer is convenient to perform subsequent maintenance and repair.

Description

High security power transformer core subassembly

Technical Field

The utility model belongs to the technical field of transformers, and particularly relates to a high-safety power transformer core assembly.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and has the main functions of: the power supply system comprises a power plant, a transformer, a.

However, most of the existing transformers have simple structures, and the safety cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-safety power transformer core assembly, which is characterized in that a wiring terminal of a transformer is wrapped and protected by arranging a wiring box on a winding, so that the exposure of a wiring position to cause electric leakage is avoided, the safety of the transformer is ensured, and the subsequent maintenance and repair of the transformer are facilitated by arranging a fixing plate to mount and fix an iron core.

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model relates to a high-safety power transformer iron core assembly which comprises an iron core and a winding, wherein the upper end surface and the lower end surface of the winding are respectively provided with the iron core; a winding slot for winding a coil is formed in the side surface of the winding; the upper end surface and the lower end surface of the winding are provided with an insulating plate; a rectangular through groove is formed in the middle of the upper end face of the winding; one side of the upper surface of the insulating plate is provided with a junction box; a wiring groove is formed in the middle of the junction box; the lower surface of the wiring groove is provided with a plurality of through hole in parallel; a plurality of through wire grooves are arranged on the outer side surface of the wire connecting groove side by side; the upper surface of the junction box is hinged with a box cover.

Furthermore, the iron core is formed by stacking a plurality of silicon steel sheets, and the silicon steel sheets are in a shape like a Chinese character 'shan'; a plurality of first through holes are arranged in parallel on one side surface of the silicon steel sheet.

Furthermore, the middle bulges of the two iron cores are inserted into the rectangular through groove; and the side surfaces of the two iron cores are contacted and attached.

Furthermore, the two iron cores are fixedly connected through a fixing plate; and the fixing plates are arranged on two opposite side surfaces of the iron core.

Further, the fixing plate is fixedly connected with the iron core through a fixing bolt; a plurality of fixing holes are arranged in parallel on one side surface of the fixing plate; the fixing hole and the first through hole are matched with the fixing bolt; the fixing bolt sequentially penetrates through the iron core and the fixing plates arranged on the two sides of the iron core to be meshed with the nut; the lower surface of fixed plate is equipped with an mounting panel, the mounting panel upper surface is equipped with a waist shape hole.

Furthermore, two sides of the upper surface of the junction box are respectively provided with a fixing screw hole.

Further, the box cover is fixed on the junction box through bolts; two sides of the upper surface of the box cover are respectively provided with a mounting hole; the bolt penetrates through the mounting hole and is meshed with the fixing screw hole.

The utility model has the following beneficial effects:

the wiring terminal of the transformer is wrapped and protected by arranging the wiring box on the winding, so that electric leakage caused by exposure of the wiring position is avoided, the safety of the transformer is ensured, and the iron core is installed and fixed by arranging the fixing plate, so that the transformer is convenient to perform subsequent maintenance and repair.

Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a high-safety core assembly of a power transformer;

FIG. 2 is a schematic structural diagram of an iron core;

FIG. 3 is a schematic diagram of a winding structure;

FIG. 4 is a schematic diagram of a winding structure;

fig. 5 is a schematic structural view of the fixing plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

Referring to fig. 1-5, the present invention is a high-safety power transformer core assembly, which includes a core 1 and a winding 2, wherein the core 1 is mounted on both upper and lower end surfaces of the winding 2; a winding slot 201 for winding a coil is arranged on the side surface of the winding 2; the upper end surface and the lower end surface of the winding 2 are both provided with an insulating plate 202; a rectangular through groove 203 is formed in the middle of the upper end face of the winding 2; a junction box 204 is arranged on one side of the upper surface of the insulating plate 202; a wiring groove 205 is arranged in the middle of the junction box 204; a plurality of through hole 206 are arranged on the lower surface of the wiring groove 205 in parallel; a plurality of through wire grooves 207 are arranged on the outer side surface of the wire connecting groove 205 in parallel; the upper surface of the junction box 204 is hinged with a box cover 3.

As shown in fig. 2, the iron core 1 is formed by stacking a plurality of silicon steel sheets 101, wherein the silicon steel sheets 101 are in a shape like a Chinese character 'shan'; a plurality of first through holes 102 are arranged in parallel on one side surface of the silicon steel sheet 101, and the middle protrusions 103 of the two iron cores 1 are inserted into the rectangular through grooves 203; the side surfaces of the two iron cores 1 are contacted and attached, and the two iron cores 1 are fixedly connected through a fixing plate 4; a plurality of fixing plates 4 are installed on opposite side surfaces of the core.

As shown in fig. 5, the fixing plate 4 is fixedly connected with the iron core 1 through a fixing bolt; a plurality of fixing holes 401 are arranged in parallel on one side surface of the fixing plate 4; the fixing hole 401 and the first through hole 102 are matched with the fixing bolt; the fixing bolt sequentially penetrates through the iron core 1 and the fixing plates 4 arranged on two sides of the iron core 1 to be meshed with the nut; the lower surface of the fixing plate 4 is provided with a mounting plate 402, and the upper surface of the mounting plate 402 is provided with a waist-shaped hole 403.

As shown in fig. 3-4, two fixing screw holes 208 are respectively formed on two sides of the upper surface of the junction box 204, and the box cover 3 is fixed on the junction box 204 by bolts; two sides of the upper surface of the box cover 3 are respectively provided with a mounting hole 301; the bolt penetrates through the mounting hole 301 to be meshed with the fixing screw hole 208; the terminal box is arranged on the winding to wrap the connector lug of the transformer, so that the exposure of the connector lug is avoided, the electric leakage is avoided, and the safety of the transformer is ensured.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a high security power transformer core subassembly, includes iron core (1) and winding (2), its characterized in that: an iron core (1) is arranged on the upper end face and the lower end face of the winding (2);

a winding slot (201) for winding a coil is formed in the side surface of the winding (2); the upper end surface and the lower end surface of the winding (2) are respectively provided with an insulating plate (202); a rectangular through groove (203) is formed in the middle of the upper end face of the winding (2);

one side of the upper surface of the insulating plate (202) is provided with a junction box (204); a wiring groove (205) is formed in the middle of the junction box (204); a plurality of through hole (206) are arranged on the lower surface of the wiring groove (205) side by side; a plurality of through wire grooves (207) are arranged on the outer side surface of the wire groove (205) side by side;

the upper surface of the junction box (204) is hinged with a box cover (3).

2. The high-safety power transformer core assembly as claimed in claim 1, wherein the core (1) is formed by stacking a plurality of silicon steel sheets (101), and the silicon steel sheets (101) are in a shape like a Chinese character 'shan'; a plurality of first through holes (102) are arranged on one side surface of the silicon steel sheet (101) side by side.

3. A high-safety power transformer core assembly according to claim 1 or 2, wherein the central protrusions (103) of the two cores (1) are inserted into the rectangular through slots (203); the side surfaces of the two iron cores (1) are contacted and attached.

4. A high-safety power transformer core assembly according to claim 2, wherein two said cores (1) are fixedly connected by a fixing plate (4); and the fixing plates (4) are arranged on two opposite side surfaces of the iron core.

5. A high-safety power transformer core assembly according to claim 4, wherein the fixing plate (4) is fixedly connected with the core (1) through a fixing bolt;

a plurality of fixing holes (401) are arranged in parallel on one side surface of the fixing plate (4); the fixing hole (401) and the first through hole (102) are matched with the fixing bolt; the fixing bolt sequentially penetrates through the iron core (1) and the fixing plates (4) arranged on two sides of the iron core (1) to be meshed with the nut;

the lower surface of the fixed plate (4) is provided with a mounting plate (402), and the upper surface of the mounting plate (402) is provided with a waist-shaped hole (403).

6. The high-safety power transformer core assembly as claimed in claim 1, wherein the junction box (204) is provided with a fixing screw hole (208) on each side of the upper surface.

7. A high-safety power transformer core assembly according to claim 6, wherein said box cover (3) is fixed on the junction box (204) by bolts;

two sides of the upper surface of the box cover (3) are respectively provided with a mounting hole (301); the bolt penetrates through the mounting hole (301) to be meshed with the fixing screw hole (208).