CN209993459U

CN209993459U - Soldering pliers contact pin type transformer

Info

Publication number: CN209993459U
Application number: CN201921141530.2U
Authority: CN
Inventors: 叶绍志; 郑建丰; 谢志顺; 周庆
Original assignee: Anhui Pudian Welding Technology Co Ltd
Current assignee: Anhui Pudian Welding Technology Co Ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-01-24
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a soldering turret contact pin type transformer in the related technical field of welding equipment, which comprises an insulating shell, a first contact pin, a second contact pin and a third contact pin; the insulating shell is provided with a first jack, a second jack and a third jack; the first jack, the second jack and the third jack are respectively connected with the inner coil of the transformer through wires; the first contact pin, the second contact pin and the third contact pin are respectively matched with the first jack, the second jack and the third jack, the first contact pin and the second contact pin are connected with a live wire, and the third contact pin is connected with a ground wire. During the use, only need insert corresponding contact pin into corresponding jack, just can carry out normal welding operation, solved the inconvenient and potential safety hazard's of use technical problem that prior art exists.

Description

Soldering pliers contact pin type transformer

Technical Field

The utility model relates to a relevant technical field of welding equipment, in particular to soldering turret contact pin formula transformer.

Background

The soldering turret among the prior art generally adopts intermediate frequency direct current transformer, and its power cord includes inlet wire end (UV end) and earthing terminal, and traditional mode of connection is terminal type for the terminal formula, sets up the elasticity nut promptly on transformer shell panel, and the nut is inside to link to each other with the inside coil of transformer, when needing to insert external power supply, loosens the screw of twisting on the nut, twines the bare portion of wire on the screw, then screws up screw and nut. The wiring mode is time-consuming, and a certain number of wires are exposed, so that short circuit is easily caused if carelessness occurs; in addition, under the condition that the screw and the nut are not fastened, poor contact can be caused, phenomena such as heating and ignition can be generated, the use of a product is influenced, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

Inconvenient and the potential safety hazard problem of use to prior art exists, the utility model aims to provide a soldering turret contact pin formula transformer.

In order to achieve the above purpose, the technical scheme of the utility model is that:

a soldering turret contact pin type transformer comprises an insulating shell, a first contact pin, a second contact pin and a third contact pin; the insulating shell is provided with a first jack, a second jack and a third jack; the first jack, the second jack and the third jack are respectively connected with an internal coil of the transformer through wires; the first pin, the second pin and the third pin are respectively matched with the first jack, the second jack and the third jack, the first pin and the second pin are respectively fixedly connected with a live wire, and the third pin is fixedly connected with a ground wire.

Furthermore, nut locking sockets are arranged at the first jack, the second jack and the third jack.

Furthermore, clamping grooves are respectively formed in the circumferential surfaces of the first contact pin, the second contact pin and the third contact pin; and the corresponding positions of the first jack, the second jack and the third jack and the clamping groove are respectively provided with matched hole snap springs.

Further, the third receptacle has distinctive markings that are distinctly different from the first and second receptacles.

Furthermore, the first contact pin, the second contact pin and the third contact pin are respectively connected with the connected wires in a welding mode.

Preferably, the first pin, the second pin and the third pin are provided with an insulating structure at the welding position with the wire connected with each pin.

Furthermore, the surfaces of the first contact pin, the second contact pin and the third contact pin are all subjected to silver plating treatment.

The utility model has the advantages of as follows:

1. after the connection part of the transformer on the soldering turret and the power line is changed into the connection mode of the contact pin and the jack, the connection can be completed only by inserting the contact pin into the corresponding jack, and the use is convenient;

2. the contact pin is tightly matched with the jack, so that potential safety hazards caused by poor contact are eliminated.

Drawings

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

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1-an insulating housing; 2-a first contact pin; 3-a second contact pin; 4-a third contact pin; 11-a first receptacle; 12-a second receptacle; 13-third receptacle.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

It should be noted that the first, second, and third pins and the first, second, and third sockets in the present technical solution are only called as "distinguishing" for the three pins and the three sockets, and are not sorted, or compared in size, or have other meanings.

Example 1

As shown in fig. 1, the internal circuit of the soldering turret pin-type transformer is the same as that of a soldering turret transformer in the market; the transformer comprises an insulating shell 1, a first contact pin 2, a second contact pin 3 and a third contact pin 4; the insulating shell 1 is provided with a first jack 11, a second jack 12 and a third jack 13; the first jack 11, the second jack 12 and the third jack 13 are respectively connected with the inner coil of the transformer through wires; the first pin 2, the second pin 3 and the third pin 4 are respectively matched with the first jack 11, the second jack 12 and the third jack 13, the first pin 2 and the second pin 3 are respectively connected with a live wire, and the third pin 4 is connected with a ground wire; the live wire connected with the first pin 2 and the second pin 3 is selected from power output by the resistance welding controller. In addition, in the present embodiment, except for the differences in wiring and function, the three jacks have the same parameters in terms of size, material, structure, and the like; in particular, the parameters of the three jacks in various aspects can be different. Correspondingly, except for the differences of wiring and functions, the three contact pins have the same parameters in all aspects of size, material, structure and the like and are matched with the three jacks; in particular, the three pins may have different parameters in various aspects, but need to be matched with the jacks connected with the three pins respectively.

When in use, only three contact pins are needed to be respectively inserted into the corresponding jacks; the power supply is respectively conducted to the first jack 11 and the second jack 12 through the first pin 2 and the second pin 3, then conducted to the secondary terminal of the transformer through the primary coils of the transformers respectively connected, transformed and output to the welding tongs for driving welding operation. The third jack 13 is connected with the third pin 4, and is used for grounding, so that the safety protection effect is achieved.

Because the lead and the contact pin in the circuit are fixedly connected in a welding, tight winding and other modes, the lead and the contact pin are not required to be frequently disassembled, and are tightly connected, so that looseness is not easy to generate; meanwhile, the connection mode between the contact pin and the matched jack is also in close fit generally, and the conditions of exposed wires, gaps and the like do not exist among all connection links, so that the phenomenon of poor contact is avoided. In addition, when the plug-in pin is used, only the plug-in pin needs to be inserted into the corresponding jack, and the use is also more convenient.

With respect to the above basic structure, the present embodiment may be further modified as follows.

In addition, in order to avoid mismatching of the live wire and the ground wire in use, in specific implementation, the three jacks need to be marked distinctively, for example, the three jacks are respectively processed into different colors, or marked with striking characters or symbols beside the three jacks, or as shown in this embodiment, the soldering pliers are described in a horizontal state, the first jack 11 and the second jack 12 of the live wire are arranged in one row, and the third jack 13 of the ground wire is arranged in the other row, so that a triangular distribution pattern is formed among the three jacks; the two rows of jacks can form an inverted triangle, and can form a regular triangle.

In order to better avoid the gap formed by the winding of the lead and the contact pin and further cause poor contact between the lead and the contact pin, the first contact pin 2, the second contact pin 3 and the third contact pin 4 are respectively connected with the lead in a welding manner.

In addition, under normal conditions, an insulating layer is arranged outside the lead, and when the lead is welded with other structures or connected in other modes, the joint is exposed; in the embodiment, the welding joints of the three contact pins and the respective connected wires are subjected to insulation treatment, and the treatment mode can be that an insulation pipe sleeve is wrapped on the periphery of the welding joints, or an insulation tape is wound, or insulation paint is sprayed and the like; and the insulation treatment is carried out until the three contact pins are respectively inserted into the inner parts of the jacks; namely, the three contact pins and the respective connected wires, only the part of the contact pin inserted into the jack is exposed, and the other parts are completely wrapped in the insulation structure, so that the connection is firm and tight, and the insulation effect is ensured.

Because silver has good conductivity in metal, the surfaces of the first contact pin 2, the second contact pin 3 and the third contact pin 4 are all subjected to silver plating treatment so as to enhance the conductivity between the three contact pins and the corresponding jacks; in specific implementation, other surface treatments or material replacement beneficial to enhancing the conductive performance can be carried out on the contact pin.

Example 2

On the basis of embodiment 1, in order to avoid looseness or falling off between the contact pin and the jack, nut locking sockets are arranged at the first jack 11, the second jack 12 and the third jack 13, and related products sold in the market are also called quick connector nut locking sockets or nut tightening sockets or other names, and the principles and the structures of the related products are the same or similar under different names. When the product is applied to the embodiment, one end of the nut locking socket is fixedly connected with the insulating shell 1, and the nut locking socket is embedded into the insulating shell 1 as deep as possible in order to ensure that the part extending out of the insulating shell 1 is as short as possible in consideration of safety and convenience; the part that lies in outside insulating casing 1, the center of nut locking socket is the jack, and the outer lane has nut locking structure, after the contact pin inserts the jack, through screwing up nut locking structure, can make contact pin and jack connection inseparabler and firm.

Example 3

On the basis of the embodiment 1, one or more circles of clamping grooves are respectively arranged on the circumferential surfaces of the first pin 2, the second pin 3 and the third pin 4; clamp springs for holes are respectively arranged at the positions of the first jack 11, the second jack 12, the third jack 13 and the clamping groove; after the contact pin is inserted into the jack, the hole in the jack can clamp the corresponding contact pin by the clamp spring, and the contact pin is prevented from falling off. Meanwhile, the conductive path between the contact pin and the jack is close contact between the non-clamping groove between the contact pin and the jack and the hole clamp spring part, so that the influence caused by poor contact is eliminated.

When the welding device is used, normal welding operation can be carried out only by inserting the corresponding contact pin into the corresponding jack, so that the welding device is simple and convenient to operate, and the influences of short circuit and poor contact can be effectively eliminated. In addition, the contact pins are used for replacing nuts in the prior art for fastening connection, and the transformer rear cover can be made to be short, so that a large wiring space is not needed in a wiring nose mode.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a soldering turret contact pin formula transformer, includes insulating casing, its characterized in that: the device also comprises a first contact pin, a second contact pin and a third contact pin; the insulating shell is provided with a first jack, a second jack and a third jack; the first jack, the second jack and the third jack are respectively connected with an internal coil of the transformer through wires; the first contact pin, the second contact pin and the third contact pin are respectively matched with the first jack, the second jack and the third jack, the first contact pin and the second contact pin are respectively fixedly connected with a live wire, and the third contact pin is fixedly connected with a ground wire.

2. The soldering tweezers pin transformer according to claim 1, wherein: and nut locking sockets are arranged at the first jack, the second jack and the third jack.

3. The soldering tweezers pin transformer according to claim 1, wherein: clamping grooves are respectively formed in the circumferential surfaces of the first contact pin, the second contact pin and the third contact pin; and the first jack, the second jack and the third jack are respectively provided with adaptive hole snap springs at the corresponding positions of the clamping groove.

4. The soldering tweezers pin transformer according to claim 1, wherein: the third jack is provided with a distinctive mark from the first jack and the second jack.

5. The soldering tweezers pin transformer according to claim 1, wherein: the first contact pin, the second contact pin and the third contact pin are respectively connected with the conducting wires in a welding mode.

6. The soldering tweezers pin transformer of claim 5, wherein: and the welding parts of the first contact pin, the second contact pin and the third contact pin and the wires connected with the first contact pin, the second contact pin and the third contact pin are all provided with insulating structures.

7. The soldering tweezers pin transformer according to claim 1, wherein: the surfaces of the first contact pin, the second contact pin and the third contact pin are all subjected to silver plating treatment.