CN218069576U - Dry-type current transformer - Google Patents

Abstract

The utility model relates to a current transformer field, concretely relates to dry-type current transformer, including mutual ware main part, anchor clamps and wire clamping mechanism are partly torn open to two, the electric wire is worn to be equipped with at the middle part of mutual ware main part, two partly tear open the anchor clamps card and establish in the top outer fringe of electric wire, and two partly tear open the anchor clamps and can dismantle the link, two wire clamping mechanism respectively fixed mounting on two partly tear open the anchor clamps, be used for carrying out centering clamp to the electric wire and press from both sides tightly, this dry-type current transformer, tear anchor clamps open through two partly, when needing to press from both sides tightly the wire, just install this equipment, and the precision after the installation is higher, and be convenient for accurately dismouting is convenient for carry out on the mutual-inductor, press from both sides to the wire through two wire clamping mechanism and press from both sides tightly, make the detection department of wire in the mutual-inductor be horizontal straight line, and then can be accurate the actual numerical value that detects, and avoid the wire to take place to rock, the stability of electric current has been increased.

Description

Dry current transformer

Technical Field

The utility model relates to a current transformer field, concretely relates to dry-type current transformer.

Background

The current transformer is an instrument for converting a large current on a primary side into a small current on a secondary side to measure according to the electromagnetic induction principle, and consists of a closed iron core and a winding, the number of turns of the winding on the primary side is small, the winding is connected in series with a circuit of a current to be measured, when a wire passes through the transformer, the wire cannot be clamped, so that the wire can swing back and forth when being detected, the condition that the current is unstable is caused, if the wire is clamped on one side of the wire, the wire can be inclined inside the transformer, the actual value cannot be accurately detected, one side is clamped, the wire can still swing, the stability of the current is influenced, the high-precision requirement is not required in a part of detection areas, a wire clamping mechanism is not required to be arranged, and therefore the wire clamping mechanism can be convenient for being accurately assembled and disassembled on the transformer.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dry-type current transformer.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a dry-type current transformer, including the ware main part of each other, half anchor clamps and wire clamping mechanism of tearing open for two, the electric wire is worn to be equipped with in the middle part of the ware main part of each other, and half anchor clamps card of tearing open for two is established on the top outer fringe of electric wire, and half anchor clamps of tearing open for two are dismantled the link for two wire clamping mechanism respectively fixed mounting on half anchor clamps of tearing open for it is tight to carry out the centering clamp to the electric wire.

Furthermore, every wire clamping mechanism all includes and presss from both sides tight driver and two arm lock, and two arm lock are located the both sides of electric wire respectively, and two arm lock equal fixed mounting half tear the anchor clamps open on, press from both sides tight driver and lie in between two arm lock for promote two arm lock and move, and press from both sides tight driver fixed mounting and tear the anchor clamps open on half.

Further, every arm lock all includes arc splint, limiting plate, two guide pillars and first baffle, and guide pillar fixed mounting is on partly tearing the anchor clamps open, and the guide pillar is passed to one section of two first baffles, sets up the guide hole that supplies first baffle to pass on the guide pillar, and arc splint fixed mounting is served at two first baffles, and limiting plate fixed mounting is provided with the rubber clamp pad at the other end of two first baffles on the inner edge of arc splint.

Further, press from both sides tight driver and include down the pusher, connect roof and two push pedals, down the pusher fixed mounting on half tearing anchor clamps open, connect roof fixed mounting in the bottom of pushing away the ware down, two push pedals are fixed mounting respectively at the both ends of connecting the roof, and two push pedals lean out, the inboard of push pedal and the outer fringe contact of arc splint, the strip breach that supplies first baffle to pass is seted up at the middle part of push pedal.

Further, the lower push-down device comprises a stud, a nut, a second guide plate and a first side plate, one end of the stud is fixedly installed on the connecting top plate, the other end of the stud penetrates through the second guide plate, a guide hole for the stud to penetrate through is formed in the second guide plate, the nut is meshed on the stud, the top of the nut is abutted to the bottom of the second guide plate, the second guide plate is fixedly installed on the first side plate, and the first side plate is fixedly installed on the half-dismantling clamp.

Further, every half anchor clamps of tearing open all includes the second curb plate, two arc cardboards, connecting plate and rigging board, two arc cardboard cards are established on the outer fringe both sides of mutual ware main part, and the top of two arc cardboards all with the step contact of mutual ware main part, second curb plate fixed mounting is on two arc cardboards, one side and the ware main part contact of each other of second curb plate, first curb plate fixed mounting is on the second curb plate, the equal fixed mounting of two connecting plates is on the second curb plate, two guide pillars are fixed mounting respectively on two connecting plates, two rigging boards are fixed mounting respectively on the outer fringe of two arc cardboards.

Further, all overlap on the outer fringe of every first baffle and be equipped with conflict spring, the one end and the guide pillar of every conflict spring are contradicted, and the other end is contradicted with the limiting plate.

The utility model has the advantages that: this dry-type current transformer through two half split fixtures, when needs press from both sides tightly the wire, just installs this equipment, and the precision after the installation is higher, and is convenient for carry out dismouting accurately of being convenient for on the mutual-inductor, presss from both sides tightly the both sides of wire through two wire clamping mechanism for the wire is horizontal linear in the detection department in the mutual-inductor, and then can be accurate the numerical value of detecting the reality, and avoid the wire to take place to rock, increased the stability of electric current.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below.

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of a partial three-dimensional structure of the present invention 1;

FIG. 3 is a schematic perspective view of the clamp arm;

fig. 4 is a schematic view of a partial three-dimensional structure of the present invention, fig. 2;

FIG. 5 is an exploded view of a portion of the clamp actuator;

FIG. 6 is a schematic perspective view of a half-split clamp;

in the figure:

1. a mutually-holding body;

2. an electric wire;

3. semi-disassembling the clamp; 3a, an arc-shaped clamping plate; 3b, a second side plate; 3c, connecting plates; 3d, laminating the plates;

4. a clamping actuator; 4a, a push-down device; 4a1, a stud; 4a2, a nut; 4a3, a second guide plate; 4a4 and a first side plate; 4b, a push plate; 4c, connecting the top plate;

5. clamping arms; 5a, arc-shaped splints; 5b, a guide post; 5c, a first guide plate; 5d, limiting plates; 5e, rubber clamping pads; 5f, abutting against the spring.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the drawings.

Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the same, the same is shown by way of illustration only and not in the form of limitation; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product.

The first embodiment is as follows:

referring to the dry-type current transformer shown in fig. 1, the dry-type current transformer comprises an inter-transformer main body 1, two half-dismantling clamps 3 and wire clamping mechanisms, wherein an electric wire 2 penetrates through the middle of the inter-transformer main body 1, the two half-dismantling clamps 3 are clamped on the outer edge of the top of the electric wire 2, the two half-dismantling clamps 3 are detachably connected, and the two wire clamping mechanisms are respectively and fixedly installed on the two half-dismantling clamps 3 and used for centering and clamping the electric wire 2.

As shown in fig. 2, each wire clamping mechanism includes a clamping driver 4 and two clamping arms 5, the two clamping arms 5 are respectively located at two sides of the wire 2, and the two clamping arms 5 are both fixedly mounted on the half-dismantling clamp 3, the clamping driver 4 is located between the two clamping arms 5 for pushing the two clamping arms 5 to move, and the clamping driver 4 is fixedly mounted on the half-dismantling clamp 3. Move through workman's drive clamp actuator 4, will make clamp actuator 4 promote two arm lock 5 and move for two arm lock 5 press from both sides tightly electric wire 2, avoid electric wire 2 to take place to rock in ware main part 1 mutually, through setting up two wire clamping mechanism, make electric wire 2 can be the straight line form of level, and measured numerical value is more accurate.

As shown in fig. 3 and 4, each clamping arm 5 includes an arc-shaped clamping plate 5a, a limiting plate 5d, two guide posts 5b and a first guide plate 5c, the guide posts 5b are fixedly mounted on the half-detachable clamp 3, one sections of the two first guide plates 5c penetrate through the guide posts 5b, guide holes for the first guide plates 5c to penetrate through are formed in the guide posts 5b, the arc-shaped clamping plate 5a is fixedly mounted at one ends of the two first guide plates 5c, the limiting plate 5d is fixedly mounted at the other ends of the two first guide plates 5c, and rubber clamping pads 5e are arranged on the inner edges of the arc-shaped clamping plate 5 a. Move through pressing from both sides tight driver 4, will make to press from both sides tight driver 4 and promote arc splint 5a downwards and move for two arc splint 5a are inwards close to simultaneously, make two arc splint 5a press from both sides tight electric wire 2, and at the in-process of arc splint 5a motion, arc splint 5a will drive two first baffle 5c and slide along the guide hole of guide pillar 5 b.

As shown in fig. 4, the clamping driver 4 includes a lower pusher 4a, a connecting top plate 4c and two push plates 4b, the lower pusher 4a is fixedly mounted on the half-detachable fixture 3, the connecting top plate 4c is fixedly mounted at the bottom of the lower pusher 4a, the two push plates 4b are respectively and fixedly mounted at two ends of the connecting top plate 4c, the two push plates 4b are inclined outwards, the inner side of the push plate 4b is in contact with the outer edge of the arc-shaped clamping plate 5a, and a strip-shaped notch for the first guide plate 5c to pass through is formed in the middle of the push plate 4 b. Unscrew down pusher 4a through the workman, will make down pusher 4a promote downwards and connect roof 4c for connecting roof 4c drives two push pedal 4b and moves, makes two push pedal 4b promote two arc splint 5a and moves, and then makes two arc splint 5a move inwards, through using connecting roof 4c and push pedal 4b, reduces cost.

As shown in fig. 5, the lower push device 4a includes a stud 4a1, a nut 4a2, a second guide plate 4a3 and a first side plate 4a4, one end of the stud 4a1 is fixedly mounted on the connecting top plate 4c, the other end of the stud 4a1 passes through the second guide plate 4a3, a guide hole for the stud 4a1 to pass through is formed in the second guide plate 4a3, the nut 4a2 is engaged with the stud 4a1, the top of the nut 4a2 abuts against the bottom of the second guide plate 4a3, the second guide plate 4a3 is fixedly mounted on the first side plate 4a4, and the first side plate 4a4 is fixedly mounted on the half-dismantling jig 3. By the worker screwing the nut 4a2, the nut 4a2 is made to push the stud 4a1 downward for movement, so that the stud 4a1 slides along the guide hole on the second guide plate 4a3, and the stud 4a1 can push the connecting top plate 4c downward for movement.

As shown in fig. 6, each half-dismantling jig 3 includes a second side plate 3b, two arc-shaped snap-gauge plates 3a, a connecting plate 3c and an engaging plate 3d, the two arc-shaped snap-gauge plates 3a are clamped on two sides of the outer edge of the mutual device main body 1, the top ends of the two arc-shaped snap-gauge plates 3a are in contact with the step of the mutual device main body 1, the second side plate 3b is fixedly mounted on the two arc-shaped snap-gauge plates 3a, one side of the second side plate 3b is in contact with the mutual device main body 1, the first side plate 4a4 is fixedly mounted on the second side plate 3b, the two connecting plates 3c are fixedly mounted on the second side plate 3b, the two guide pillars 5b are respectively and fixedly mounted on the two connecting plates 3c, and the two engaging plates 3d are respectively and fixedly mounted on the outer edges of the two arc-shaped snap-gauge plates 3 a. Establish arc cardboard 3a card on half two of tearing open anchor clamps 3 in the outer fringe of mutual ware main part 1 through the workman, the rethread workman uses the bolt to connect between two binding plates 3d, and then make two second side panels 3b support tightly in the ware main part 1 of each other, and through the step contact of arc cardboard 3a and the ware main part 1 of each other, make arc cardboard 3a can't rotate in the outer fringe of ware main part 1 of each other, and then accomplish two and half the fixing of tearing open anchor clamps 3, make clamp driver 4 and arm lock 5 fixed mounting on mutual ware main part 1.

Example two:

the difference between the present embodiment and the first embodiment is that, as shown in fig. 3, an abutting spring 5f is sleeved on the outer edge of each first guide plate 5c, one end of each abutting spring 5f abuts against the guide post 5b, and the other end abuts against the limiting plate 5 d. Through setting up conflict spring 5f for at the very beginning, conflict spring 5f promotes limiting plate 5d, and then makes arc splint 5a contradict push pedal 4b, and then makes two arc splint 5a at the very beginning be in the distance of being separated by the farthest, avoids contacting with electric wire 2, and push pedal 4b can not rock from top to bottom.

When the electric wire 2 needs to be clamped and positioned, the arc-shaped clamping plates 3a on the two half-dismantling clamps 3 are clamped on the outer edge of the mutual device main body 1 through a worker, the two attaching plates 3d are connected through the worker by using bolts, so that the two second side plates 3b are abutted against the mutual device main body 1, and the arc-shaped clamping plates 3a are contacted with the steps of the mutual device main body 1, so that the arc-shaped clamping plates 3a cannot rotate on the outer edge of the mutual device main body 1, and the two half-dismantling clamps 3 are fixed, so that the clamping driver 4 and the clamping arms 5 are positioned and installed on the mutual device main body 1;

when the device is installed, the abutting springs 5f are arranged, so that the abutting springs 5f push the limiting plates 5d at the beginning, the arc-shaped clamping plates 5a abut against the push plates 4b, the two arc-shaped clamping plates 5a are located at the farthest distance from each other at the beginning, contact with the electric wires 2 is avoided, and the push plates 4b cannot shake up and down;

after the installation is completed, the nut 4a2 is screwed by a worker, the nut 4a2 is enabled to downwards push the stud 4a1 to move, the stud 4a1 slides along the guide hole in the second guide plate 4a3, the stud 4a1 can downwards push the connecting top plate 4c to move, the connecting top plate 4c drives the two push plates 4b to move, the two push plates 4b push the two arc-shaped clamping plates 5a to move, the two arc-shaped clamping plates 5a move inwards, the two rubber clamping pads 5e clamp the electric wire 2 at the middle position of the mutual device main body 1, the electric wire 2 can be in a horizontal linear state by arranging the two wire clamping mechanisms, and the measured numerical value is more accurate.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention.

Claims (7)

1. The utility model provides a dry-type current transformer, includes mutual looks ware main part (1), two partly tear anchor clamps (3) open and wire clamping mechanism, its characterized in that, electric wire (2) wear to be equipped with in the middle part of mutual looks ware main part (1), two partly tear anchor clamps (3) card open and establish on the top outer fringe of electric wire (2), and two partly tear anchor clamps (3) open and can dismantle the link, two wire clamping mechanism respectively fixed mounting be in two partly tear anchor clamps (3) open on, be used for right electric wire (2) carry out centering clamp tightly.

2. A dry current transformer according to claim 1, characterized in that each wire clamping mechanism comprises a clamping driver (4) and two clamping arms (5), the two clamping arms (5) are respectively located at two sides of the electric wire (2), and the two clamping arms (5) are both fixedly mounted on the half-split clamp (3), the clamping driver (4) is located between the two clamping arms (5) for pushing the two clamping arms (5) to move, and the clamping driver (4) is fixedly mounted on the half-split clamp (3).

3. A dry current transformer according to claim 2, characterized in that each clamping arm (5) comprises an arc clamping plate (5 a), a limiting plate (5 d), two guide posts (5 b) and a first guide plate (5 c), the guide posts (5 b) are fixedly mounted on the semi-detachable fixture (3), one section of the two first guide plates (5 c) passes through the guide posts (5 b), guide holes for the first guide plates (5 c) to pass through are formed on the guide posts (5 b), the arc clamping plate (5 a) is fixedly mounted on one end of the two first guide plates (5 c), the limiting plate (5 d) is fixedly mounted on the other end of the two first guide plates (5 c), and rubber clamping pads (5 e) are arranged on the inner edge of the arc clamping plate (5 a).

4. A dry current transformer according to claim 3, characterized in that the clamping driver (4) comprises a push-down device (4 a), a connecting top plate (4 c) and two push plates (4 b), the push-down device (4 a) is fixedly mounted on the semi-detachable fixture (3), the connecting top plate (4 c) is fixedly mounted at the bottom of the push-down device (4 a), the two push plates (4 b) are respectively fixedly mounted at two ends of the connecting top plate (4 c), the two push plates (4 b) are inclined outwards, the inner side of the push plate (4 b) is in contact with the outer edge of the arc-shaped clamping plate (5 a), and the middle part of the push plate (4 b) is provided with a strip-shaped notch for the first guide plate (5 c) to pass through.

5. The dry current transformer according to claim 4, wherein the lower push-down device (4 a) comprises a stud (4 a 1), a nut (4 a 2), a second guide plate (4 a 3) and a first side plate (4 a 4), one end of the stud (4 a 1) is fixedly mounted on the top plate (4 c), the other end of the stud (4 a 1) passes through the second guide plate (4 a 3), a guide hole for the stud (4 a 1) to pass through is formed in the second guide plate (4 a 3), the nut (4 a 2) is engaged on the stud (4 a 1), the top of the nut (4 a 2) abuts against the bottom of the second guide plate (4 a 3), the second guide plate (4 a 3) is fixedly mounted on the first side plate (4 a 4), and the first side plate (4 a 4) is fixedly mounted on the half-split clamp (3).

6. A dry current transformer according to claim 5, characterized in that each half-split clamp (3) comprises a second side plate (3 b), two arc-shaped snap-gauge plates (3 a), a connecting plate (3 c) and an engaging plate (3 d), the two arc-shaped snap-gauge plates (3 a) are snapped on both sides of the outer rim of the interconnector body (1), and the top ends of the two arc-shaped snap-gauge plates (3 a) are in contact with the step of the interconnector body (1), the second side plate (3 b) is fixedly mounted on the two arc-shaped snap-gauge plates (3 a), one side of the second side plate (3 b) is in contact with the interconnector body (1), the first side plate (4 a 4) is fixedly mounted on the second side plate (3 b), the two connecting plates (3 c) are fixedly mounted on the second side plate (3 b), the two guide posts (5 b) are respectively fixedly mounted on the two connecting plates (3 c), and the two engaging plates (3 d) are respectively fixedly mounted on the outer rims of the two arc-shaped snap-gauge plates (3 a).

7. A dry-type current transformer as claimed in claim 3, wherein each first guide plate (5 c) is provided at its outer periphery with a collision spring (5 f), and each collision spring (5 f) has one end colliding with said guide post (5 b) and the other end colliding with said limit plate (5 d).

Images