CN216013490U

CN216013490U - Flexible Roche coil transformer

Info

Publication number: CN216013490U
Application number: CN202122610831.9U
Authority: CN
Inventors: 刘琪
Original assignee: Hubei Xiasen Power Co ltd
Current assignee: Hubei Xiasen Power Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-03-11
Anticipated expiration: 2031-10-27

Abstract

The utility model discloses a flexible rogowski coil mutual inductor, its characterized in that: the transformer comprises a transformer body and an annular Rogowski coil, wherein one end of the Rogowski coil is fixed on the transformer body, the other end of the Rogowski coil is fixedly coated with a metal sleeve, a clamping groove matched and spliced with the metal sleeve is formed in the transformer body, and an elastic locking mechanism for locking the metal sleeve is further arranged on the transformer body to form locking and unlocking of the metal sleeve; the utility model discloses a flexible rogowski coil mutual-inductor passes through the setting of elasticity locking mechanism, and the homeopathic grafting when the installation is fixed, and automatic completion is fixed, through the button head according to the extensible member when demolising, can extract the rogowski coil, its simple structure, reasonable in design improves the design on prior art, and relative prior art has promoted convenient usability, has also avoided the wear problem that the helicitic texture used for a long time, and the side has prolonged life, has good marketing nature and competitiveness.

Description

Flexible Roche coil transformer

Technical Field

The utility model relates to a mutual-inductor technical field, concretely relates to flexible rogowski coil mutual-inductor.

Background

The Rogowski coil is also called a current measuring coil and a differential current sensor, and is an annular coil uniformly wound on a non-ferromagnetic material, and a coil shell is wrapped outside the annular coil. Because the Rogowski coil current sensor and the current transducer are in an integrated structure, no matter how large the primary current is, no additional current transformer is needed. And the Rogowski coil current transformer adopts a plug-in type, so that the field connection is convenient, and the tested main loop does not need to be disassembled during the connection. The integrated transmitter has small volume, light weight and good linearity. The input and output of the power supply can be realized by 4-20mA in a passive two-wire system which are isolated from each other, and the working power supply is taken from load DC24V or 12V; the input, output and power supply can be realized, the three ends are mutually isolated, and the working power supply can independently supply DC 24V. The characteristics make it have a series of advantages such as wide measuring range, good insulating properties, wide frequency band, good linearity, no iron core, no magnetic saturation phenomenon, etc., and become a new direction for the development of power transformers. At present, two ends of a coil shell on the market are fixedly connected in a threaded mode to form a ring. However, when the ring shape of the coil housing needs to be opened in a spiral manner, the fixed manner of opening and closing still has trouble.

SUMMERY OF THE UTILITY MODEL

In view of the prior art, an object of the present invention is to provide a flexible rogowski coil transformer which can be directly fixed by plugging and unplugging, which realizes the effect of plugging and locking and quick unlocking by the elastic mechanism, and has the characteristics of outstanding convenience in use.

In order to realize the above purpose, the utility model discloses a technical scheme be: a flexible Roche coil transformer is characterized in that: include the mutual-inductor body and be annular rogowski coil, on the one end of rogowski coil was fixed in the mutual-inductor body, the other end cladding was fixed with the metal covering, be provided with the draw-in groove of pegging graft with the metal covering looks matching on the mutual-inductor body, still be provided with the elasticity locking mechanism who is used for locking the metal covering on the mutual-inductor body, elasticity locking mechanism includes extensible member and spring, the spring is located and is used for the relative mutual-inductor body activity of elastic drive extensible member between mutual-inductor body and the extensible member, the extensible member extension is provided with fender portion, fender portion forms the locking and the locking of removing the metal covering when the relative mutual-inductor body activity of extensible member.

As the further setting of above-mentioned scheme, the fender portion of extensible member is provided with the inclined plane towards the metal covering plug-in connection direction, the metal covering front end is provided with in inclined plane assorted chamfer, and it is used for passing through the cooperation on chamfer and inclined plane when the luo shi coil is pegged graft, and the flexible grafting passageway of letting out the metal covering of drive extensible member to compression spring.

As a further arrangement of the scheme, the mutual inductor body further comprises a mutual inductor probe and a wire.

As a further arrangement of the scheme, the mutual inductor body is provided with an opening, one end of the telescopic piece extends to form a button head, and the button head extends out of the mutual inductor body through the opening.

As a further arrangement of the scheme, the mutual inductor body is further provided with a mutual inductor body cover in a matched mode, a movable groove for moving the telescopic piece is formed in the mutual inductor body cover, a spring groove is further formed in the telescopic piece, the spring is located in the spring groove, and the other end of the spring extends out of the spring groove and abuts against the inner side wall of the movable groove.

The utility model discloses a flexible rogowski coil mutual-inductor passes through the setting of elasticity locking mechanism, the thread fixing structure that generally sets up on the formula of inserting mutual-inductor is pulled out to prior art, the convenience has been strengthened, need not rotatory screw thread lid, when installation is the same trend grafting, through the flexible reset that extensible member and metal covering are based on the spring, accomplish fixedly automatically, through the button head according to the extensible member during demolition, push away the fender portion and realize the locking to the metal covering, can extract the rogowski coil, and loosen the elastic automatic reset extensible member based on the spring after the button head, should the grafting of next time fix; the utility model discloses a flexible rogowski coil transformer simple structure, reasonable in design improves the design on prior art, and prior art has promoted convenient usability relatively, has also avoided the wear problem that the helicitic texture used for a long time, and the side has prolonged life, has good marketing nature and competitiveness.

Drawings

Fig. 1 is a schematic structural view of the rogowski coil transformer of the present invention.

Fig. 2 is an exploded view of a local structure of the transformer using the new rogowski coil.

Fig. 3 is a schematic partial sectional view of the elastic locking mechanism of the present invention.

Fig. 4 is an internal structure diagram of the rogowski coil transformer of the present invention.

Fig. 5 is a schematic view of a local part of the rogowski coil transformer of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflicting with each other.

A flexible rogowski coil transformer, as shown in fig. 1-5, characterized by: including mutual-inductor body 1 and be annular rogowski coil 3, on the one end of rogowski coil 3 was fixed in mutual-inductor body 1, the other end cladding was fixed with metal covering 4, be provided with the draw-in groove of pegging graft with 4 phase-matchs of metal covering on the mutual-inductor body 1, still be provided with the elasticity locking mechanism who is used for locking metal covering 4 on the mutual-inductor body 1, elasticity locking mechanism includes extensible member 5 and spring 8, spring 8 is located and is used for the relative mutual-inductor body 1 activity of elastic drive extensible member 5 between mutual-inductor body 1 and the extensible member 5, extensible member 5 extends and is provided with fender portion, fender portion forms the locking to metal covering 4 and removes the locking when 5 relative mutual-inductor bodies of extensible member are movable.

As the further setting of above-mentioned scheme, the fender portion of extensible member 5 is provided with inclined plane 52 towards the 4 grafting directions of metal covering, 4 front ends of metal covering are provided with in inclined plane 52 assorted chamfer, and it is used for driving extensible member 5 and stretching out and drawing back the grafting passageway of leaving away metal covering 4 through the cooperation of chamfer and inclined plane 52 when rogowski coil 3 is pegged graft to compression spring.

As a further arrangement of the above scheme, the mutual inductor body 1 further comprises a mutual inductor probe 7 and a lead 8.

As a further arrangement of the above scheme, an opening is formed in the transformer body 1, a button head 2 is arranged at one end of the telescopic piece 5 in an extending manner, and the button head 2 extends out of the transformer body 1 through the opening.

As a further arrangement of the above scheme, the mutual inductor body 1 is further provided with a mutual inductor body cover 12 in a matching manner, a movable groove 11 for moving the extensible member 5 is formed in the mutual inductor body cover 12, a spring groove 51 is further formed in the extensible member 5, the spring 8 is located in the spring groove 51, and the other end of the spring extends out of the spring groove 51 and abuts against the inner side wall of the movable groove 11.

The working principle is as follows: the utility model discloses a flexible Rogowski coil mutual-inductor, when using, encircle flexible Rogowski coil 3 on the target to be measured, with the Rogowski coil 3 that has metal covering 4 one end to the interface that corresponds of mutual-inductor body 1 inserts, based on the chamfer of metal covering 4 tip and the inclined plane 52 cooperation on extensible member 5, promote extensible member 5 activity to let out the fender portion that forms the locking to metal covering 4, accomplish grafting smoothly, extensible member 5 can compress both ends respectively to support spring 8 on the bottom of extensible member 5 spring groove 51 and the movable slot inside wall 11 on mutual-inductor body lid 12 based on the shifting force when moving, after metal covering 4 completely gets into mutual-inductor body 1, its butt thrust to extensible member 5 disappears, spring 8 deformation resets, drive extensible member 5 reverse activity, fender portion resume the original position, namely metal covering 4 rear end after the current installation is accomplished, Rogowski coil 3 at this moment receives the interference of fender portion and metal covering 4, the transformer body 1 can not be separated, and the Rogowski coil 3 can be inserted and fixed; when the transformer is dismounted, the telescopic piece 5 is exposed out of the button head 2 of the transformer body 1 by pressing the telescopic piece 5, so that the telescopic piece 5 moves towards the spring 8, the telescopic piece and the metal sleeve 4 are inserted in the same direction, meanwhile, the spring 8 is compressed, namely, the blocking part leaves the rear end of the metal sleeve 4, the Rogowski coil 3 is pulled out, and similarly, after the button head 2 is loosened after the metal sleeve 4 is pulled out, the spring 8 elastically resets, and the transformer restores the state of the original blocking part locking.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A flexible Roche coil transformer is characterized in that: comprises a mutual inductor body (1) and a ring-shaped Rogowski coil (3), wherein one end of the Rogowski coil (3) is fixed on the mutual inductor body (1), the other end is coated and fixed with a metal sleeve (4), the mutual inductor body (1) is provided with a clamping groove which is matched and spliced with the metal sleeve (4), the mutual inductor body (1) is also provided with an elastic locking mechanism for locking the metal sleeve (4), the elastic locking mechanism comprises a telescopic piece (5) and a spring (8), the spring (8) is positioned between the mutual inductor body (1) and the telescopic piece (5) and is used for elastically driving the telescopic piece (5) to move relative to the mutual inductor body (1), the telescopic piece (5) extends to be provided with a blocking part, and the blocking part forms locking and unlocking of the metal sleeve (4) when the telescopic piece (5) moves relative to the mutual inductor body (1).

2. The flexible rogowski coil transformer of claim 1, wherein: the fender portion of extensible member (5) is provided with inclined plane (52) towards metal covering (4) grafting direction, metal covering (4) front end is provided with in inclined plane (52) assorted chamfer, and it is used for driving extensible member (5) flexible make way the grafting passageway of metal covering (4) through the cooperation of chamfer and inclined plane (52) when Rogowski coil (3) are pegged graft to compression spring.

3. The flexible rogowski coil transformer of claim 1, wherein: the mutual inductor is characterized in that the mutual inductor body (1) further comprises a mutual inductor probe (7) and a lead (8).

4. The flexible rogowski coil transformer of claim 1, wherein: the transformer is characterized in that an opening is formed in the transformer body (1), a button head (2) is arranged at one end of the telescopic piece (5) in an extending mode, and the button head (2) extends out of the transformer body (1) through the opening.

5. The flexible rogowski coil transformer of claim 1, wherein: mutual-inductor body (1) still cooperates and is provided with mutual-inductor body lid (12), is provided with movable groove (11) that supply extensible member (5) to move about on mutual-inductor body lid (12), still have spring groove (51) on extensible member (5), spring (8) are located spring groove (51), and the other end stretches out spring groove (51) and supports on movable groove (11) inside wall.