Simple and convenient current transformer semi-finished product inspection device

Abstract

The utility model provides a simple and convenient current transformer semi-finished product inspection device which comprises a first induction belt, a second induction belt and a plurality of primary side copper bars which are longitudinally and symmetrically arranged, a plurality of first bayonet sockets are arranged on the surface of the first induction belt at intervals, and a plurality of second bayonet sockets are arranged on the surface of the second induction belt at intervals. The upper end of the primary side copper bar is inserted into the first bayonet socket, the lower end of the primary side copper bar is correspondingly inserted into the portion, under the upper end of the primary side copper bar, of the second bayonet socket, and the primary side copper bar is sleeved with a semi-finished secondary side coil in a penetrating mode. According to the utility model, a plurality of current transformer semi-finished products can be simultaneously detected at one time, the technical problem that the primary side contact head needs to be frequently replaced and the standard needs to be changed in the detection process of the original detection device is solved, the operation process is simple and clear, and the detection efficiency of the secondary side coil of the semi-finished product is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to current transformer inspection equipment technical field, concretely relates to a simple current transformer semi -finished product inspection device. BACKGROUND

[0002] Current transformer needs to carry out the inspection to semi -finished product coil in the production process, and the inspection method generally is according to the rated primary current of current transformer to apply equivalent current, then judges whether semi -finished product coil meets the requirement by the secondary output current value of inspection current transformer. The inspection process of the current transformer of existing traditional generally is, first, the semi -finished product coil to be inspected is sleeved on the primary side copper bar, the two end heads of copper bar are electrically connected with a pair of contact heads of inspection instrument respectively, then the copper bar is powered to make it produce electric field, and semi -finished product coil produces corresponding current by electric field induction, namely secondary side current, finally, whether the value of secondary side current meets the requirement is inspected.

[0003] The inspection instrument for current transformer generally is equipped with two contact heads, and the two contact heads are connected with the two ends of primary side copper bar to power it to make copper bar produce electric field, and only one semi -finished product coil is sleeved on primary side copper bar, therefore, the traditional inspection process can only inspect one current transformer, when inspecting different variable ratio (the ratio of secondary side current value and primary side current value) each time, the contact head of primary side copper bar and inspection instrument needs to be replaced, then the standard is changed to continue to inspect, the process is complicated and easy to confuse, and the efficiency is low, and the situation that contact head contact is unreliable or miscontacting leads to inaccurate inspection can also appear. Therefore, a simple and easy current transformer semi -finished product inspection device is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a simple current transformer semi -finished product inspection device, solves the technical problem that the original inspection device needs to frequently replace primary side contact head and change standard in the inspection process, and the operation process is simple and clear, improves the inspection efficiency of semi -finished product coil.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] The utility model provides a simple and convenient current transformer semi-finished product inspection device, including first induction zone, second induction zone, a plurality of primary side copper bar, first induction zone and second induction zone are symmetrically arranged longitudinally, a plurality of first plug-in seat are arranged on the first surface of first induction zone, a plurality of second plug-in seat are arranged on the second surface of second induction zone on the same side with the first surface, and the second plug-in seat on the second surface is symmetrically arranged with the first plug-in seat on the first surface, the upper end of primary side copper bar is plugged in first plug-in seat, and the lower end of primary side copper bar is plugged in the second plug-in seat below the upper end, and the semi-finished product secondary side coil is sleeved on the primary side copper bar.

[0007] As a preferred technical scheme of the utility model, a plurality of first plug-in seats are arranged on the third surface of the first induction zone opposite to the first surface, a plurality of second plug-in seats are arranged on the fourth surface of the second induction zone opposite to the second surface, and the second plug-in seat on the fourth surface is symmetrically arranged with the first plug-in seat on the third surface.

[0008] As a preferred technical scheme of the utility model, a plurality of first plug-in seats are arranged on the third surface of the first induction zone opposite to the first surface, a plurality of second plug-in seats are arranged on the fourth surface of the second induction zone opposite to the second surface, and the second plug-in seat on the fourth surface is symmetrically arranged with the first plug-in seat on the third surface.

[0009] As a preferred technical scheme of the utility model, a plurality of first plug-in seats are arranged on the third surface of the first induction zone opposite to the first surface, a plurality of second plug-in seats are arranged on the fourth surface of the second induction zone opposite to the second surface, and the second plug-in seat on the fourth surface is symmetrically arranged with the first plug-in seat on the third surface.

[0010] A plurality of second clamping grooves are arranged on the surface of the second induction zone, and the second plug-in seat is arranged in the second clamping groove.

[0011] As a preferred technical scheme of the utility model, the upper end of the primary side copper bar is provided with a first clamping head matched with the first clamping groove, and the lower end of the primary side copper bar is provided with a second clamping head matched with the second clamping groove.

[0012] As a preferred technical scheme of the utility model, the first induction zone and the second induction zone are connected on the insulating inspection plate through the insulating fixing frame.

[0013] As a preferred technical scheme of the utility model, the primary side copper bar is in U-shaped structure, and the semi-finished product secondary side coil is sleeved on the middle part of the primary side copper bar.

[0014] As a preferred technical scheme of the utility model, the first induction zone and the second induction zone are both made of copper material.

[0015] From the above technical scheme can be known, the technical scheme of the utility model provides a simple current transformer semi-finished product inspection device, adopt a group of induction zone as intermediate conductor which is symmetrically arranged, set several groups of current plug-in seat on the group of induction zone, can simultaneously inspect many current transformer semi-finished products, and convenient and fast operation, solve the problem that need frequently change primary side contact head and change standard in original inspection process, improve the efficiency of semi-finished product secondary side coil, in addition, the contact mode is more safe and reliable compared with traditional connection mode, avoid the situation of unreliable contact or false contact.

[0016] It should be understood that all combinations of the aforementioned concepts and additional concepts described in greater detail below can be seen as part of the utility model subject matter of the present disclosure as long as such concepts are not mutually contradictory.

[0017] The aforementioned and other aspects, embodiments, and features of the present teachings can be more fully understood from the following description in conjunction with the accompanying drawings. Other aspects, features, and / or advantages of the utility model will become apparent from the description that follows, especially when taken in conjunction with the drawings. Embodiments of the present teachings will now be described, by way of example only, with reference to the accompanying drawings in which: BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings are not drawn to true scale. In the drawings, each same or like component element can be denoted by the same reference numeral, irrespective of its number of appearance. For the sake of clarity, not every component element can be labeled in every drawing. There will now be described, by way of example only, embodiments of various aspects of the present teachings with reference to the accompanying drawings in which:

[0019] Figure 1 Structure schematic view of the utility model embodiment

[0020] Figure 2 Left side view of the utility model embodiment

[0021] Figure 3 Front side view of the utility model embodiment

[0022] Figure 4 Top view of the utility model embodiment.

[0023] The meanings of the reference numerals represented in the drawings are as follows:

[0024] 1-first induction zone 101-first plug-in seat 2-second induction zone 201-second plug-in seat 3-primary side copper bar 301-first clamping joint 302-second clamping joint 4-semi-finished product secondary side coil 5-inspection plate DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without any creative effort fall within the scope of the present application. Unless otherwise defined, the technical terms or scientific terms used herein should have the usual meaning understood by those of ordinary skill in the art to which the present application belongs.

[0026] The terms "first", "second", and similar terms used in the patent application specification and claims of the present application do not represent any order, number or importance, but are only used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular form "a", "an" or "the" and the like do not represent a quantity limitation, but represent the existence of at least one. The terms "include" or "contain" and the like mean that the elements or objects appearing before "include" or "contain" cover the features, integers, steps, operations, elements and / or components listed after "include" or "contain", and do not exclude the existence or addition of one or more other features, integers, steps, operations, elements, components and / or their combinations. "Up", "down", "left", "right" and the like are only used to represent relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] In order to solve the problems of the existing current transformer semi-finished product inspection device, such as complicated operation, low efficiency, easy confusion of inspection contact head, and unreliable contact or false contact leading to incorrect inspection, the embodiments of the present application provide a simple current transformer semi-finished product inspection device. The inspection device comprises a first induction belt, a second induction belt and a plurality of primary side copper bars, and the first induction belt and the second induction belt are longitudinally symmetrically arranged. Specifically, the first induction belt and the second induction belt are symmetrically arranged on the insulating test plate 5 one above the other through the insulating fixing frame (not shown in the drawing), and the first induction belt and the second induction belt are made of conductive material, preferably copper material with good conductivity.

[0028] In the embodiment of the utility model, first surface of first induction band 1 is equipped with a plurality of first plug -in seat 101, and the second surface of second induction band 2 is equipped with a plurality of second plug -in seat 201, and the second plug -in seat 201 on the second surface is symmetrically arranged with the first plug -in seat 101 on the first surface, the upper end of primary side copper bar 3 is plugged in first plug -in seat 101, the lower end of primary side copper bar 3 is plugged in second plug -in seat 201 below the upper end, and semi-finished product secondary side coil 4 is sleeved on primary side copper bar 3. In addition, first induction band 1 and second induction band 2 are also equipped with electrical connection port or contact head (not shown in the drawing) for connecting two contact heads of current transformer tester respectively, when the connection port of first induction band 1 and second induction band 2 is connected with two contact heads of tester respectively, and the upper end and lower end of primary side copper bar 3 are connected on first induction band 1 and second induction band 2 respectively, tester, first induction band 1, primary side copper bar 3 and second induction band 2 form a conducting current loop, at this time, semi-finished product secondary side coil 4 on primary side copper bar 3 can be provided with electric field to generate secondary current. In this way, a plurality of current transformer semi-finished products, i.e. semi-finished product secondary side coil 4, can be tested on the same side surface of first induction band 1 and second induction band 2. In order to further increase the number of simultaneous tests, a plurality of first plug -in seat 101 and a plurality of second plug -in seat 201 can be respectively arranged on the other side surface of first induction band 1 and second induction band 2, i.e. third surface of first induction band 1 and fourth surface of second induction band 2, so that both surfaces of first induction band 1 and second induction band 2 are provided with plug -in seat, and a plurality of semi-finished product secondary side coils 4 can be tested on both side surfaces of induction band, improving the test efficiency, and during testing, only need to sleeve semi-finished product secondary side coil 4 to be detected on primary side copper bar 3, then connect the upper end and lower end of primary side copper bar 3 on first plug -in seat 101 and second plug -in seat 201 respectively, start tester to begin testing, which is very convenient and fast, and in addition, when changing the ratio, only need to connect the connection port of first induction band 1 and second induction band 2 to another pair of connection contact heads.

[0029] Further, a plurality of the first sockets 101 are equidistantly arranged on the same surface, a plurality of the second sockets 201 are equidistantly arranged on the same surface, and the interval between two adjacent second sockets 201 is equal to the interval between two adjacent first sockets 101. The interval between two adjacent sockets on the same surface should be adapted to the size of the semi-finished secondary side coil 4, so that when the semi-finished secondary side coil 4 is sleeved on the primary side copper bar 3, a certain gap is still reserved between them, avoiding that when multiple semi-finished secondary side coils 4 are simultaneously inspected, the semi-finished secondary side coil 4 cannot be sleeved on the primary side copper bar 3 due to insufficient space between the sockets. In order to make the semi-finished secondary side coil 4 more stably sleeved on the primary side copper bar 3, the primary side copper bar 3 is in a U-shaped structure, so when the two ends of the primary side copper bar 3 are connected with the first socket 101 and the second socket 201 respectively, the primary side copper bar 3 is arranged horizontally, and therefore the semi-finished secondary side coil 4 is just sleeved on the middle part of the primary side copper bar 3, and the bottom end is placed on the horizontal side below the primary side copper bar 3.

[0030] As a preferred embodiment of the utility model, a plurality of first clamping grooves are arranged on the surface of the first induction belt 1, and the first socket 101 is arranged in the first clamping groove; a plurality of second clamping grooves are arranged on the surface of the second induction belt 2, and the second socket 201 is arranged in the second clamping groove. The upper end of the primary side copper bar 3 is provided with a first clamping head 301 matched with the first clamping groove, and the lower end of the primary side copper bar 3 is provided with a second clamping head 302 matched with the second clamping groove. Through the cooperation of the clamping head and the clamping groove, the connection between the primary side copper bar 3 and the induction belt is more convenient, fast and accurate in positioning.

[0031] The use principle of the utility model embodiment is as follows: during inspection, the semi-finished secondary side coil 4 is sleeved on the primary side copper bar 3 one by one, then the primary side copper bar 3 is connected with the first induction belt 1 and the second induction belt 2 one by one, after ensuring stable connection, the connection port of the first induction belt 1 and the second induction belt 2 is connected with a pair of contact heads of the inspection instrument, finally the inspection instrument is started to perform inspection.

[0032] Although the utility model has disclosed as above with preferred embodiments, it is not used to limit the utility model. Those skilled in the art without departing from the spirit and scope of the utility model can make various changes and decorations. Therefore, the protection scope of the utility model is defined by the claims.

Claims

1. A simple inspection device for semi-finished current transformers, characterized in that, The device includes a first sensing strip (1), a second sensing strip (2), and several primary side copper busbars (3). The first sensing strip (1) and the second sensing strip (2) are arranged symmetrically in the longitudinal direction. Several first plug-in seats (101) are spaced apart on the first surface of the first sensing strip (1). Several second plug-in seats (201) are spaced apart on the second surface of the second sensing strip (2) on the same side as the first surface. The second plug-in seats (201) on the second surface are symmetrically arranged with the first plug-in seats (101) on the first surface. The upper end of the primary side copper busbar (3) is inserted into the first plug-in seat (101). The lower end of the primary side copper busbar (3) is correspondingly inserted into the second plug-in seat (201) directly below its upper end. A semi-finished secondary side coil (4) is sleeved on the primary side copper busbar (3).

2. The simple inspection device for semi-finished current transformers according to claim 1, characterized in that, A plurality of first plug-in seats (101) are spaced apart on the third surface of the first sensing strip (1) opposite to the first surface, and a plurality of second plug-in seats (201) are spaced apart on the fourth surface of the second sensing strip (2) opposite to the second surface. The second plug-in seats (201) on the fourth surface and the first plug-in seats (101) on the third surface are symmetrically arranged one-to-one.

3. The simple inspection device for semi-finished current transformers according to claim 1 or 2, characterized in that, A plurality of first plug-in sockets (101) on the same surface are equidistantly arranged, a plurality of second plug-in sockets (201) on the same surface are equidistantly arranged, and the distance between two adjacent second plug-in sockets (201) is equal to the distance between two adjacent first plug-in sockets (101).

4. The simple inspection device for semi-finished current transformers according to claim 3, characterized in that, The surface of the first sensing strip (1) is provided with a plurality of first slots, and the first plug-in (101) is disposed in the first slots; The surface of the second sensing strip (2) is provided with a plurality of second slots, and the second plug-in seat (201) is disposed in the second slots.

5. The simple inspection device for semi-finished current transformers according to claim 4, characterized in that, The upper end of the primary copper busbar (3) is provided with a first snap-fit ​​connector (301) that engages with the first snap-fit ​​slot, and the lower end of the primary copper busbar (3) is provided with a second snap-fit ​​connector (302) that engages with the second snap-fit ​​slot.

6. The simple inspection device for semi-finished current transformers according to claim 1, characterized in that, The first sensing strip (1) and the second sensing strip (2) are connected to the insulating test plate (5) by an insulating bracket.

7. The simple inspection device for semi-finished current transformers according to claim 1, characterized in that, The primary copper busbar (3) has a U-shaped structure, and the semi-finished secondary coil (4) is threaded through the middle of the primary copper busbar (3).

8. The simple inspection device for semi-finished current transformers according to claim 1, characterized in that, Both the first sensing strip (1) and the second sensing strip (2) are made of copper.

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