CN219457305U

CN219457305U - High-precision runway type mutual inductor

Info

Publication number: CN219457305U
Application number: CN202320074011.9U
Authority: CN
Inventors: 汤晓宇; 罗汉平; 兰雄; 张振环
Original assignee: GUANGDONG YADA ELECTRONICS CO Ltd
Current assignee: GUANGDONG YADA ELECTRONICS CO Ltd
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-08-01
Anticipated expiration: 2033-01-07

Abstract

The utility model relates to the technical field of transformers, in particular to a high-precision runway type transformer. Including left box body, right box body, magnetic core, coil, face lid and binding post, left box body and right box body middle part position run through and are provided with the through-hole, and right box body is close to left box body one side and left box body and is located the through-hole position and all is provided with the baffle, and the magnetic core is runway type structure, and the magnetic core is located the both sides of left box body and right box body and makes circular arc structure through epoxy, and magnetic core and coil pass through the epoxy embedment at right box body inner chamber, pass through the screw fixation between left box body and the right box body. The insulated gummed paper can be omitted on the surface of the coil to reduce cost, and the magnetic core with the side wall of the circular arc structure can better protect the enameled wire.

Description

High-precision runway type mutual inductor

Technical Field

The utility model relates to the technical field of transformers, in particular to a high-precision runway type transformer.

Background

The current iron core that is used in comparatively general mutual-inductor in high low voltage electrical equipment is square at present, and the iron core needs to wind the insulating film when producing and is unfavorable for production, and both ends are very sharp limit about the iron core, the insulating layer scratch with the enameled wire easily or all stretch out the enameled wire, and its coil part only winds both ends about the iron core, does not have the wire winding about moreover, and automatic production can not be done to this kind of production mode, and wire winding is inhomogeneous, still influences production efficiency, and this kind of wire winding mode can receive copper bar return conductor, copper bar interval and mutual-inductor assembly eccentric scheduling problem in addition, and is very big to mutual-inductor precision interference, hardly satisfies present customer's requirement.

Disclosure of Invention

(one) solving the technical problems

In order to solve the problems in the prior art, the utility model provides the high-precision runway type mutual inductor which is small in size, simple in structure, convenient to manufacture, high in precision, strong in interference resistance and convenient to install.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

the utility model provides a high accuracy runway type mutual-inductor, includes left box body, right box body, magnetic core, coil, face lid and binding post, left side box body and right box body middle part position run through and are provided with the through-hole, right side box body is close to left box body one side and left box body and is located the through-hole position and all is provided with the baffle, the magnetic core is runway type structure, the magnetic core is located the both sides of left box body and right box body and makes circular arc structure through epoxy, magnetic core and coil pass through the epoxy embedment at right box body inner chamber, pass through the screw fixation between left side box body and the right box body. The insulated gummed paper can be omitted on the surface of the coil to reduce cost, and the magnetic core with the side wall of the circular arc structure can better protect the enameled wire.

Preferably, the upper ends of the left box body and the right box body are close to one another, one side of the upper ends of the left box body and the right box body is provided with a terminal clamping groove, and the wiring terminal is arranged in the terminal clamping groove.

Preferably, the surface cover is fixed at the upper part between the left box body and the right box body through lead sealing screws, and the surface cover is used for sealing the terminal clamping groove.

Preferably, the magnetic core is coated with an insulating layer.

(III) beneficial effects

The utility model provides a high-precision runway type mutual inductor. The beneficial effects are as follows:

(1) The utility model adopts a runway type design, is convenient to install, has wide application field, strong universality and strong standardization.

(2) The utility model can directly and automatically produce, improve the efficiency and reduce the cost.

(3) The utility model improves the precision of the transformer and is not affected by the problems of copper bar return conductors, copper bar spacing, transformer assembly eccentricity and the like.

Drawings

FIG. 1 is an assembly view of the present utility model;

FIG. 2 is a right side view of the present utility model;

FIG. 3 is a cross-sectional view A-A of FIG. 2 in accordance with the present utility model;

FIG. 4 is a diagram of the magnetic core structure of the present utility model;

fig. 5 is a diagram showing the structure of the coil according to the present utility model.

In the figure: 1. a left box body; 2. a right box body; 3. a magnetic core; 4. a coil; 5. a face cover; 6. a connection terminal; 7. a through hole; 8. a baffle; 9. a terminal clamping groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-5, the high-precision runway type transformer of this embodiment comprises a left box body 1, a right box body 2, a magnetic core 3, a coil 4, a face cover 5 and a connecting terminal 6, through holes 7 are formed in the middle positions of the left box body 1 and the right box body 2, baffles 8 are arranged on one side of the right box body 2 close to the left box body 1 and in the position of the through holes 7, the right box body 2 and the left box body 1 play a guiding role and increase an electric gap, and winding insulating gummed paper on the surface of the coil can be omitted to reduce cost. The magnetic core 3 is runway type structure, and magnetic core 3 is located left box body 1 and right box body 2's both sides and makes the circular arc structure through epoxy, and magnetic core 3 both sides are through encapsulating machine with epoxy drip the upper and lower two planes of magnetic core 3 and make the circular arc to better protection enameled wire, magnetic core 3 and coil 4 pass through epoxy embedment at right box body 2 inner chamber, pass through the screw fixation between left box body 1 and the right box body 2.

Further, the upper ends of the left box body 1 and the right box body 2 are close to each other, one side is provided with a terminal clamping groove 9, and the wiring terminal 6 is arranged in the terminal clamping groove 9. The binding post 6 is pressed into the terminal draw-in groove 9, saves the use of bolt, conveniently fixes it.

Further, the face cover 5 is fixed to the upper portion between the left case 1 and the right case 2 by lead sealing screws, and the face cover 5 is used for sealing the terminal clamping groove 9. The binding post 6 is assembled in the terminal draw-in groove 9, then with the aperture on the face lid 5 and lead seal screw (connect right box body 2, left box body 1 and face lid 5) the aperture through the lock of theftproof iron wire cluster back reuse lead seal card, realize preventing burglary.

Further, the magnetic core 3 is coated with an insulating layer.

Working principle: the enameled wire is uniformly wound on the magnetic core 3 through a winding machine according to the current ratio to form a coil 4, so that the production efficiency is improved. Placing the magnetic core 3 and the coil 4 in the cavity of the right box body 2, filling and fixing with epoxy resin, then assembling the connecting terminal 6 in the terminal clamping grooves at the upper ends of the right box body 2 and the left box body 1, fixing the left box body 1 and the right box body 2 with screws, fixing the surface cover 5 with the left box body 1 and the right box body 2 through lead sealing screws by the surface cover 5, and finally tightly stringing small holes on the surface cover 5 with small holes on the lead sealing screws through anti-theft iron wires and then clamping with lead sealing.

Claims

1. The utility model provides a high accuracy runway formula mutual-inductor, includes left box body (1), right box body (2), magnetic core (3), coil (4), face lid (5) and binding post (6), its characterized in that: left side box body (1) and right box body (2) middle part position run through and are provided with through-hole (7), right side box body (2) are close to left box body (1) one side and left box body (1) and are located through-hole (7) position and all are provided with baffle (8), magnetic core (3) are runway type structure, magnetic core (3) are located the both sides of left box body (1) and right box body (2) and make circular arc structure through epoxy, magnetic core (3) and coil (4) are through epoxy embedment in right box body (2) inner chamber, pass through the screw fixation between left side box body (1) and the right box body (2).

2. A high precision racetrack type transformer as defined by claim 1, wherein: the upper ends of the left box body (1) and the right box body (2) are close to each other, one side of the upper ends is provided with a terminal clamping groove (9), and the wiring terminal (6) is arranged in the terminal clamping groove (9).

3. A high precision runway type transformer according to claim 2 wherein: the face cover (5) is fixed on the upper portion between the left box body (1) and the right box body (2) through lead sealing screws, and the face cover (5) is used for sealing the terminal clamping groove (9).

4. A high precision racetrack type transformer as defined by claim 1, wherein: the magnetic core (3) is coated with an insulating layer.