CN203812710U

CN203812710U - Mutual inductor for ammeter

Info

Publication number: CN203812710U
Application number: CN201420159948.7U
Authority: CN
Inventors: 沈辉
Original assignee: ANHUI YONG'AN ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: ANHUI YONG'AN ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2014-04-03
Filing date: 2014-04-03
Publication date: 2014-09-03
Anticipated expiration: 2024-04-03

Abstract

The utility model discloses a mutual inductor for an ammeter. The mutual inductor for the ammeter comprises a magnetic core and a casing, and the interior of the mutual inductor is filled with an epoxide. The mutual inductor is characterized in that an ultra-thin copper bar is arranged in a central hole of the mutual inductor; a welding point convenient for welding is arranged on the edge of the ultra-thin copper bar, corresponding to a set size position; a high-voltage wire is welded to the welding point. The thickness of the ultra-thin copper bar is ranged from 1.95mm to 2.05mm. By adopting the technical scheme disclosed by the utility model, the copper bar is thinned, the cost is reduced, the material is saved, and waste and pollution are controlled. Moreover, convenience for an operator in wire welding is improved, the assembly is easy, the production efficiency is improved, the firmness of the welded wires is enhanced, the required size position is more accurate, and the production quality is ensured.

Description

A kind of meter transformer

Technical field

The utility model relates to a kind of electronic devices and components, is specifically related to a kind of meter transformer.

Background technology

In the existing instrument transformer in market, the thickness of copper rod is all thicker, on the thicker copper rod of thickness, welds high-voltage line, but it is in assembling with there is in transit following defect: the first, because it is that manual operation causes position of bonding wire can produce error; So the second, the thicker degree of difficulty that causes bonding wire of copper rod thickness, thereby cause production efficiency slow; Three, because the degree of difficulty of bonding wire causes product bonding wire position loosening insecure in transit, easily come off, affect product quality.

Summary of the invention

For solving the problems of the technologies described above, technical problem to be solved in the utility model is to provide the new transformer that a kind of easy weldering, firm welding, easily assembling, production efficiency are high, save production cost.

For achieving the above object, a kind of meter transformer of the utility model, comprise magnetic core and shell, this instrument transformer inside is filled with epoxy compounds, it is characterized in that, in the hole in the middle of instrument transformer, be provided with ultra-thin copper rod, the size positions of relatively setting in the edge of ultra-thin copper rod is provided with the pad of being convenient to welding, at pad, is welded with high-voltage line.

The thickness of described ultra-thin copper rod is 2 ± 0.05mm.

In technique scheme, a kind of meter transformer that the utility model provides, has following beneficial effect:

Copper rod structure from a kind of meter transformer of the utility model, (1), because the copper rod in the middle of instrument transformer is ultra-thin, reduces the thickness of copper rod, has reduced cost; (2) when having saved material, also controlled waste and polluted.

From a kind of meter transformer of the utility model, at welding manner, the size positions that (1) is set relatively in the edge of copper rod is provided with the pad of being convenient to welding, handled easily personnel bonding wire, and easily assembling, has improved production efficiency; (2) strengthened the firmness of bonding wire, desired size positions is more accurate, has guaranteed product quality.

Accompanying drawing explanation

Fig. 1 is the perspective view of a kind of meter transformer of the utility model;

Fig. 2 is the vertical view of Fig. 1;

Fig. 3 is the structural representation of a kind of meter transformer of the utility model;

Fig. 4 is the front view of copper rod in a kind of meter transformer of the utility model;

Fig. 5 is the upward view of Fig. 4;

Fig. 6 is the left view of Fig. 4.

Embodiment

Below in conjunction with accompanying drawing, a kind of meter transformer of the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

Fig. 1, Fig. 2, Fig. 3 show the structural representation of a kind of meter transformer that the utility model embodiment provides.Comprise magnetic core 1 and shell 2, this instrument transformer inside is filled with epoxy compounds 3, in the hole 4 in the middle of instrument transformer, be provided with ultra-thin copper rod 5, the size positions of relatively setting in the edge of ultra-thin copper rod 5 is provided with the pad 6 of being convenient to welding, at pad 6, is welded with high-voltage line 7.Fig. 4, Fig. 5, Fig. 6 show the structure of copper rod in a kind of meter transformer that the utility model embodiment provides, the size positions of relatively setting in the edge of ultra-thin copper rod 5 is provided with the pad 6 of being convenient to welding, and the thickness of the ultra-thin copper rod 5 in the present embodiment is 2 ± 0.05mm.A kind of meter transformer of the present embodiment is compared and is had following advantage with existing instrument transformer: first, it is large that copper rod in a kind of meter transformer of the copper rod Thickness Ratio the present embodiment in existing instrument transformer is wanted, thereby caused the inconvenience of operator in the time of bonding wire, intensity for welding also can impact, the high-voltage line of welding easily comes off, in the present embodiment, reduced the thickness of copper rod, saved cost, and for the pollution of waste material also with respect to minimizing.Existing instrument transformer copper rod, owing to there is no bonding wire sampled point, causes operating personnel will come by the frock of restriction position in bonding wire spacing, operates and causes departing from of size positions for a long time.Existing instrument transformer copper rod operating personnel in the time of bonding wire do not need completely with limiting tool, effectively raise production efficiency and have reduced scrap.The second, existing instrument transformer copper rod needs the restriction of frock that copper rod and shell center are fitted together when assembling with shell, and operation can cause the wearing and tearing of frock for a long time, and so the cooperation for center has caused the error in size positions.The 3rd, the sampling point position that only shell need be coupled to copper rod when new transformer copper rod and shell assembling just reaches the center mated position of technological requirement, has improved greatly the efficiency of producing and has saved manpower.

These are only preferred embodiment of the present utility model, not in order to limit the utility model, all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.

Claims

1. a meter transformer, comprise magnetic core (1) and shell (2), this instrument transformer inside is filled with epoxy compounds (3), it is characterized in that, in the hole (4) in the middle of instrument transformer, be provided with ultra-thin copper rod (5), the size positions of relatively setting in the edge of ultra-thin copper rod (5) is provided with the pad (6) of being convenient to welding, at pad (6), is welded with high-voltage line (7); The thickness of described ultra-thin copper rod (5) is 2 ± 0.05mm.