A conversion device for terminals of a calibration table

Abstract

The utility model discloses a conversion device for the terminals of a calibration table, including an insulating seat and a plug-in PCB. Two rows of power connection holes are provided at the line port position on the top of the insulating seat. Multiple wiring terminals are welded to the output and input ends of the plug-in PCB. The wiring terminals are connected to the insulating seat by plugging through the power connection holes. Threaded holes are provided at the line port position on the front side of the insulating seat. Wiring studs are installed in the threaded holes. The terminals of the plug-in PCB are fixed in the line port at the corresponding position through the wiring studs. Through the conversion device, the meter is exempted from the manual wiring installation method and is more suitable for the automated production method. Even if manual installation is adopted, the installation process is simplified, the labor cost is reduced, the wrong wiring sequence is avoided, and the wiring efficiency is improved. Since there is no excessively long wire, it is not easily affected by the external electromagnetic environment. The use of the conversion device also ensures the calibration accuracy and helps to improve product quality.

Description

Technical Field

[0001] The utility model relates to the technical field of electric meter equipment, and more specifically, particularly to a conversion device for terminals of a meter calibration platform. Background Art

[0002] In today's electric meter production process, the meter calibration table plays a vital role. It is directly used in the error correction, function debugging and other processes of the meter. However, the wiring terminals of the calibration table are mostly cylindrical solid copper columns, and most of them have a thick diameter and a wide spacing between the terminals. Most of them are only suitable for meters with a terminal spacing of more than 7.62mm.

[0003] When producing rail-type electric meters or other small metering products, it is often necessary to use manual wiring to connect the meter and the calibration station. This method is inefficient, the wiring is complicated, and it is very easy to connect the wrong line sequence, causing damage to the meter and increasing labor costs. In addition, for high-precision electric meters, the wiring connection method will cause deviations during calibration due to wiring internal resistance or external interference, affecting the calibration accuracy, which has become a major obstacle to the mass production of this type of meter. Utility Model Content

[0004] The utility model aims to provide a conversion device for the terminals of a calibration platform, which can convert the current connection terminals of the calibration platform into terminals with any spacing.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a conversion device for the terminals of a calibration table, including an insulating seat and a plug-in PCB, the insulating seat is a hollow structure, the bottom of the insulating seat is an open shape, the inside of the insulating seat is divided into multiple wire ports by a partition, and the top of the insulating seat is provided with two rows of power connection holes at the wire port positions, the output and input ends of the plug-in PCB are welded with multiple wiring terminals, the wiring terminals are connected to the insulating seat by plugging through the power connection holes, the front side of the insulating seat is provided with threaded holes at the wire port positions, and wiring studs are installed in the threaded holes, and the terminals of the plug-in PCB are fixed in the wire ports at the corresponding positions through the wiring studs.

[0006] Preferably, a metal wiring frame is fixedly mounted on the inner side wall of the wire opening.

[0007] Preferably, the rear side of the metal wiring frame extends out of the insulating seat.

[0008] Preferably, the connection terminal is made of a highly conductive metal material.

[0009] Preferably, the plug-in PCB adopts a double-sided design structure.

[0010] Preferably, the cross-sections of the connection terminal and the power connection hole are both rectangular, and the connection terminal is sheet-shaped.

[0011] Compared with the prior art, the advantages of the utility model are:

[0012] Through this conversion device, the meter is free from the manual wiring installation method and is more suitable for automated production methods. Even if manual installation is adopted, it greatly simplifies the installation process, reduces labor costs, avoids the occurrence of wrong wiring sequence, improves wiring efficiency, and makes the production process more flexible. Different types of meters can be produced in the same batch.

[0013] On the other hand, since there are no overly long wires and the terminals of the conversion device are made of highly conductive metal and are made into sheets to increase the contact area, the internal resistance of the conversion device is extremely small, it can carry a large current, the current loss of the table output is extremely low, and it is not easily affected by the external electromagnetic environment. The use of the conversion device also ensures the calibration accuracy and helps to improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a stereoscopic diagram of a conversion device for the terminals of a calibration table according to the utility model;

[0016] Figure 2 It is a bottom view of a conversion device for terminals of a calibration table according to the utility model;

[0017] Figure 3 This is a stereoscopic view from another direction of the conversion device for the terminals of the calibration table of the utility model.

[0018] In the figure: 1 terminal block, 2 plug-in PCB, 3 insulation seat, 31 power connection hole, 32 wire port, 4 terminal stud, 5 metal wiring frame DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0020] See also Figure 1 , Figure 2 and Figure 3As shown, the utility model provides a conversion device for the terminals of a calibration table, including an insulating seat 3 and a plug-in PCB2. The insulating seat 3 is a hollow structure, and the bottom of the insulating seat 3 is open. The inside of the insulating seat 3 is divided into a plurality of wire openings 32 by a partition, and two rows of power connection holes 31 are provided at the top of the insulating seat 3 at the positions of the wire openings 32. The output and input ends of the plug-in PCB2 are welded with a plurality of wiring terminals 1, and the wiring terminals 1 are connected to the insulating seat 3 by plugging through the power connection holes 31. To ensure the safety of electricity use, the insulating seat 3, the plug-in PCB2 and the wiring terminals 1 must be used in combination and cannot be disassembled. The front side of the insulating seat 3 is provided with threaded holes at the positions of the wire openings 32, and wiring studs 4 are installed in the threaded holes. The terminals of the plug-in PCB2 are fixed in the wire openings 32 at the corresponding positions by the wiring studs 4.

[0021] Furthermore, in this embodiment, a metal wiring frame 5 is fixedly installed on the inner wall of the wire opening 32 to play a flame retardant and protective role.

[0022] Furthermore, in this embodiment, the rear side of the metal wiring frame 5 extends out of the insulating seat 3 .

[0023] Furthermore, in this embodiment, the connection terminal 1 is made of a highly conductive metal material, such as silver or copper.

[0024] In this embodiment, the plug-in PCB adopts a double-sided design structure to ensure the current it can carry.

[0025] In this embodiment, the cross-sections of the connection terminal 1 and the power connection hole 31 are both rectangular, and the connection terminal 1 is sheet-shaped, which can increase the contact area, reduce the internal resistance, and carry a large current.

[0026] The specific operation steps are as follows: when using this device, you can first select plug-in PCB 2 of different specifications according to the meter type or the spacing design of the meter terminals, plug the plug-in PCB 2 into the power connection hole 31 of the insulating seat 3 and fix it through the terminal stud 4, and then when installing it on the platform, first tighten the terminal stud 4 with the metal terminal frame 5 to the terminal post of the calibration platform, and then install the meter on the power connection hole 31 of the insulating seat 3, and fix it with the terminal stud 4.

[0027] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, the patent owner may make various variations or modifications within the scope of the appended claims. As long as they do not exceed the protection scope described in the claims of the present invention, they should be within the protection scope of the present invention.

Claims

1. A conversion device for a calibration table terminal, comprising an insulating seat, characterized in that: It also includes a plug-in PCB, the insulating seat is a hollow structure, the bottom of the insulating seat is open, the inside of the insulating seat is divided into multiple wire ports by partitions, and the top of the insulating seat is provided with two rows of power connection holes at the wire port positions. The output and input ends of the plug-in PCB are welded with multiple wiring terminals, and the wiring terminals are connected to the insulating seat by plugging through the power connection holes. The front side of the insulating seat is provided with threaded holes at the wire port positions, and wiring studs are installed in the threaded holes. The terminals of the plug-in PCB are fixed in the wire ports at corresponding positions through the wiring studs.

2. A conversion device for calibration platform terminals according to claim 1, characterized in that: A metal wiring frame is fixedly mounted on the inner side wall of the wire opening.

3. A conversion device for calibration platform terminals according to claim 2, characterized in that: The rear side of the metal wiring frame extends out of the insulating seat.

4. A conversion device for calibration platform terminals according to claim 1, characterized in that: The connection terminal is made of a highly conductive metal material.

5. A conversion device for calibration platform terminals according to claim 1, characterized in that: The plug-in PCB adopts a double-sided design structure.

6. A conversion device for calibration platform terminals according to claim 1, characterized in that: The cross sections of the connection terminal and the power connection hole are both rectangular, and the connection terminal is in sheet shape.

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