CN110567344A

CN110567344A - Transformer size screening jig

Info

Publication number: CN110567344A
Application number: CN201910995981.0A
Authority: CN
Inventors: 韦娜诗
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2019-12-13

Abstract

The invention discloses a transformer size screening jig which comprises a high upper die and a PIN distance lower die, wherein the high upper die and the PIN distance lower die are connected through a connecting hole, a cavity is formed in the middle of the high upper die and the PIN distance lower die, the shape of the cavity is consistent with that of the cross section of a transformer to be screened, a height template is arranged at the top of the high upper die, a width template is arranged on one side of the high upper die, and a PIN distance template is arranged on the upper portion of the PIN distance lower die. The transformer size screening jig can screen items to be measured such as PIN distance, height and width of the transformer at one time, so that good products and defective products of the transformer can be effectively measured, and the measuring effect is high.

Description

Transformer size screening jig

Technical Field

The invention belongs to the technical field of transformer measuring tools, and particularly relates to a transformer size screening jig.

background

A Transformer (Transformer) is a device that changes an alternating-current voltage by using the principle of electromagnetic induction, and 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 transformer), and the like. According to the application, the method can be divided into: power transformers and special transformers (furnace transformers, rectification transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors, mutual inductors, etc.). The circuit symbols are usually T as the beginning of the numbering, e.g., T01, T201, etc.

The transformer consists of an iron core (or a magnetic core) and a coil, wherein the coil is provided with two or more than two windings, the winding connected with a power supply is called a primary coil, and the other windings are called secondary coils. It can transform alternating voltage, current and impedance. The simplest iron core transformer consists of an iron core made of soft magnetic material and two coils with different turns sleeved on the iron core.

The core functions to enhance the magnetic coupling between the two coils. In order to reduce eddy current and hysteresis loss in iron, the iron core is formed by laminating painted silicon steel sheets, and two coils are not electrically connected and are wound by insulated copper wires (or aluminum wires). One coil is connected with an alternating current power supply and is called a primary coil (or a primary coil), and the other coil is connected with an electric appliance and is called a secondary coil (or a secondary coil). The actual transformer is complex and inevitably has copper losses (coil resistance heating), iron losses (core heating) and leakage (magnetic flux lines closed by air), etc., and only the ideal transformer will be described here for simplicity of discussion. The ideal transformer holds the following conditions: the leakage flux, the resistances of the primary and secondary coils, the core loss, and the no-load current (the current in the primary coil with the secondary coil open) were neglected. For example, when the power transformer is operated in full load (the secondary winding outputs rated power), the situation is close to the ideal transformer.

In the production process of the transformer, the dimensions of the transformer such as PIN distance, height, width and the like before packaging need to be measured. At present, the PIN distance, the height and the width of the transformer are measured by using a vernier caliper, the upper limit value and the lower limit value of each specification are easily confused in the measurement process, the measurement efficiency is too low, and the production requirement cannot be met.

Disclosure of Invention

the invention aims to provide a transformer size screening jig which can effectively and effectively measure the good product and the defective product of the transformer size and has a high measuring effect.

The technical scheme provided by the invention is as follows:

The utility model provides a transformer size screening tool which characterized in that: mould and PIN apart from the lower mould including high, mould and PIN are connected apart from the lower mould through the connecting hole on high, mould and PIN are located the vacuole formation apart from the centre of lower mould on high, the cavity shape is unanimous with the transformer cross sectional shape of waiting to filter, the top of mould is equipped with high template on high, one side of mould is equipped with the width template on high, PIN is equipped with PIN apart from the template apart from the upper portion of lower mould.

the high upper die and the PIN distance lower die are made of stainless steel or aluminum alloy.

Compared with the prior art, the invention has the following advantages:

The transformer size screening jig can screen items to be measured such as PIN distance, height and width of the transformer at one time, and various specification required parameters are formulated to make central values, so that the measurement size of each product can be controlled, good products and defective products of the transformer can be effectively measured, an operator only needs to hold the product to be loaded into the jig in the correct direction, if the product passes through the jig, the product is qualified, otherwise, the product is unqualified, and the measuring effect is high.

Drawings

FIG. 1 is a schematic structural diagram of a transformer size screening jig according to the present application;

Fig. 2 is a schematic structural view of the upper die 1 of the present application;

FIG. 3 is a schematic structural diagram of a PIN distance lower die 2 of the present application;

Reference numerals: the high upper die 1, the PIN distance lower die 2, the connecting hole 3, the height template 4, the width template 5 and the PIN distance template 6.

Detailed Description

The following description of the preferred embodiments of the present invention is provided for the purpose of illustration and description, and is in no way intended to limit the invention.

As shown in fig. 1-3, a transformer size screening tool, mould 1 and PIN apart from lower mould 2 on including high, mould 1 and PIN apart from lower mould 2 on high is connected through connecting hole 3, the middle department of mould 1 and PIN apart from lower mould 2 on high forms the cavity, the cavity shape is unanimous with the transformer cross sectional shape of treating the screening, the top of mould 1 is equipped with high template 4 on high, one side of mould 1 is equipped with width template 5 on high, PIN is equipped with PIN apart from template 6 apart from the upper portion of lower mould 2.

The upper die 1 and the PIN distance lower die 2 are made of stainless steel or aluminum alloy.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a transformer size screening tool which characterized in that: mould (1) and PIN apart from lower mould (2) including high, mould (1) and PIN are connected through connecting hole (3) apart from lower mould (2) in the height, mould (1) and PIN are located the vacuole formation apart from the centre of lower mould (2) in the height, the cavity shape is unanimous with the transformer cross sectional shape of waiting to filter, the top of mould (1) is equipped with high template (4) in the height, one side of mould (1) is equipped with width template (5) in the height, PIN is equipped with PIN apart from template (6) apart from the upper portion of lower mould (2).

2. The transformer size screening jig according to claim 1, characterized in that the upper high die (1) and the lower PIN pitch die (2) are made of stainless steel or aluminum alloy.