CN209544084U - A kind of open type current transformer - Google Patents

Abstract

The utility model discloses a kind of open type current transformers, including support base, stator core, rotor core, coiling and hold mechanism, center position at the top of the support base is fixed with fixed shell, and the right side of fixed case top is hinged with movable housing by hinge, 6 groups, which are equipped with, between the fixed shell and movable housing holds mechanism, and the adjacent angle held between mechanism is all 60 °, the inside of the fixed shell and movable housing is separately installed with stator core and rotor core, and the both ends of stator core and rotor core extend respectively to the outside of fixed shell and movable housing and contact with each other, the surface of the stator core and rotor core is all equidistantly wound with coiling.The open type current transformer not only increases the operating efficiency of open type current transformer, improves the measurement accuracy of open type current transformer, and extends the service life of open type current transformer.

Description

A kind of open type current transformer

Technical field

The utility model relates to current transformer technical field, specially a kind of open type current transformer.

Background technique

Primary side high current is converted into secondary side low current to measure according to electromagnetic induction principle by current transformer Instrument, inside be mainly made of iron core and winding, for the ease of practical operation, technical staff designs open type Current Mutual Inductance Device is in order to staff's livewire work.

But existing open type current transformer still remains certain problem, and particular problem has the following:

1, many open type current transformers itself lack certain auxiliary mechanism for installing, thus in operation The problems such as being easy to happen wire dropping or offset then causes its practical operating efficiency to reduce；

2, lack inside general open type current transformer and hold positioning mechanism automatically, thus conducting wire can produce inside it Raw fluctuation, then influences its measurement accuracy；

3, lower mobile open type current transformer itself lacks effective damping, heat dissipation and the functions such as wear-resisting, finally leads Its service life is caused quickly to shorten.

Utility model content

The purpose of this utility model is to provide a kind of open type current transformers, to solve to propose in above-mentioned background technique The practical operation efficiency of device is lower, measurement accuracy is poor and service life lacks the problem of ensureing.

To achieve the above object, the utility model provides the following technical solutions: a kind of open type current transformer, including branch It supports seat, stator core, rotor core, coiling and holds mechanism, the center position at the top of the support base is fixed with set casing Body, and the right side of fixed case top is hinged with movable housing by hinge, installs between the fixed shell and movable housing There are 6 groups to hold mechanism, and the adjacent angle held between mechanism is all 60 °, the inner part of the fixed shell and movable housing Stator core and rotor core are not installed, and the both ends of stator core and rotor core extend respectively to fixed shell and activity The outside of shell simultaneously contacts with each other, and the surface of the stator core and rotor core is all equidistantly wound with coiling, and stator iron The density of heart surface coiling is greater than the density of rotor core surface coiling.

Preferably, the two sides of the support base bottom are all fixed with rubber sheet gasket.

Preferably, the two sides of the support base bottom are all equipped with positioning screw hole, and the top of positioning screw hole is all equipped with spiral shell Mother, while the bottom of positioning screw hole is all equipped with tight fixed bolt, and the top of tight fixed bolt all sequentially passes through rubber sheet gasket and spiral shell Top that is female and extending to support base.

Preferably, the inside of the fixed shell and movable housing is all equipped with polyethylene body, and polyethylene body is interior It is resistance to ceramics that portion is all equidistantly electroplate with graphene heat-conducting layer respectively equipped with through-hole, and inside and outside polyethylene body on wall Grind layer.

Preferably, 2 card slots, while the left side of movable housing bottom are symmetrically fixed on the left of the fixed case top 2 grabs symmetrically are hinged with, and grab is all mutually clamped with card slot.

Preferably, the mechanism that holds is successively arranged fixinig plate, radiation fins and arc clip from top to bottom, fixinig plate Lower section is equipped with arc clip, is fixedly connected between fixinig plate and arc clip by radiation fins.

Compared with prior art, the utility model has the beneficial effects that the open type current transformer not only increases out The operating efficiency of mouth formula current transformer, improves the measurement accuracy of open type current transformer, and extends open type electricity The service life of current transformer；

1, by setting positioning screw hole in the two sides of support base bottom, nut, tight fixed bolt are installed in the inside of positioning screw hole, and By the top fixed card slot in fixed shell, the hinged grab in the bottom of movable housing realizes open type current transformer just In the function that installation is fixed, to improve the operating efficiency of open type current transformer；

2, mechanism is held by installing between fixed shell and movable housing, the inside for holding mechanism sets fixinig plate, wave Line set and arc clip realize and hold the function of positioning automatically inside open type current transformer, to improve opening The measurement accuracy of formula current transformer；

3, by the fixed rubber sheet gasket in two sides in support base bottom, the inside for fixing shell and movable housing sets polyethylene Main body, and through-hole is set by the inside in polyethylene body, electro graphite alkene is led respectively on wall inside and outside polyethylene body Thermosphere and ceramic wearing coat realize open type current transformer damping, heat dissipation and wear-resisting function, to extend opening The service life of formula current transformer.

Detailed description of the invention

Fig. 1 is the main view the schematic diagram of the section structure of the utility model；

Fig. 2 is the side elevational cross-section structural schematic diagram of the utility model；

Fig. 3 is the side structure schematic view of the utility model；

Fig. 4 holds mechanism the schematic diagram of the section structure for the utility model；

Fig. 5 is the fixation shell the schematic diagram of the section structure of the utility model.

In figure: 1, support base；2, rubber sheet gasket；3, tight fixed bolt；4, nut；5, positioning screw hole；6, fixed shell；7, fixed Sub- iron core；8, movable housing；9, rotor core；10, coiling；11, mechanism is held；1101, fixinig plate；1102, radiation fins； 1103, arc clip；12, grab；13, card slot；14, through-hole；15, graphene heat-conducting layer；16, polyethylene body；17, ceramics are resistance to Grind layer.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: a kind of open type current transformer, including support Seat 1, rotor core 9, coiling 10 and holds mechanism 11 at stator core 7, and the center position at 1 top of support base is fixed with fixation Shell 6, and the right side at 6 top of fixed shell is hinged with movable housing 8 by hinge, pacifies between fixed shell 6 and movable housing 8 Mechanism 11 is held equipped with 6 groups, and the adjacent angle held between mechanism 11 is all 60 °, fixed shell 6 is interior with movable housing 8 Portion is separately installed with stator core 7 and rotor core 9, and the both ends of stator core 7 and rotor core 9 extend respectively to set casing The outside of body 6 and movable housing 8 simultaneously contacts with each other, and the surface of stator core 7 and rotor core 9 is all equidistantly wound with coiling 10, and the density of 7 surface coiling 10 of stator core is greater than the density of 9 surface coiling 10 of rotor core.

The two sides of 1 bottom of support base are all fixed with rubber sheet gasket 2 as shown in figure 1, bottom bumper and absorbing shock are used for, to avoid Degree, which is tightened, to be caused to damage.

The two sides of 1 bottom of support base are equipped with positioning screw hole 5 as shown in figure 1, and the top of positioning screw hole 5 is all equipped with nut 4, The bottom of positioning screw hole 5 is all equipped with tight fixed bolt 3 simultaneously, and the top of tight fixed bolt 3 all sequentially passes through rubber sheet gasket 2 and spiral shell Mother 4 and the top for extending to support base 1, convenient for the current transformer is fixed on the table.

Inside as fixed shell 6 and movable housing 8 in Fig. 5 is all equipped with polyethylene body 16, and polyethylene body 16 It is internal to be all equidistantly equipped with through-hole 14, and it is electroplate with graphene heat-conducting layer 15 inside and outside polyethylene body 16 on wall respectively With ceramic wearing coat 17, it can be used for realizing the function to high efficiency and heat radiation and abrasion-resistant surface inside the current transformer.

Left side as fixed 6 top of shell in Fig. 3 is symmetrically fixed with 2 card slots 13, while the left side of 8 bottom of movable housing It is hinged with 2 grabs 12, and all mutually clampings of grab 12 and card slot 13, symmetrically convenient between fixed shell 6 and movable housing 8 Engaging.

It is successively arranged fixinig plate 1101, radiation fins 1102 and arc clip from top to bottom as held mechanism 11 in Fig. 4 1103, the lower section of fixinig plate 1101 is equipped with arc clip 1103, passes through radiation fins between fixinig plate 1101 and arc clip 1103 1102 are fixedly connected；

In use, by conducting wire across fixed shell 6 and movable housing 8, then the table of arc clip 1103 and the conducting wire Face contacts with each other, and in the process, according to the diameter dimension of the conducting wire, radiation fins 1102 is accordingly shunk, so that the conducting wire be made to begin In center and keep relative stability.

Working principle: in use, tight fixed bolt 3 is passed through into work top first and is inserted into the inside of positioning screw hole 5, followed by It is continuous to turn positioning screw hole 5 and its top is made to pass through nut 4, so that the fixation work of the current transformer is completed, in the process, Rubber sheet gasket 2 provides buffer protection for the both ends of support base 1, avoids damaging due to excessively tightening, and then, opens active shell The conducting wire of required detection is put between fixed shell 6 and movable housing 8 by body 8, afterwards turns over movable housing 8, and 2 are blocked Hook 12 and the mutually clamping of corresponding card slot 13, at this point, contacting with each other between stator core 7 and rotor core 9 and together with and arc Intermediate plate 1103 and the surface of the conducting wire contact with each other, and at the same time, according to the diameter dimension of the conducting wire, radiation fins 1102 is mutually receivable Contracting is led to make the conducting wire begin in center and keep relative stability so that the current transformer be made to accurately measure out this The magnitude of current inside line, further, since fixed shell 6 and movable housing 8 using polyethylene body 16 and it is interior set through-hole 14, when this When current transformer inner heat, then graphene heat-conducting layer 15 carries out rapid cooling by through-hole 14, and ceramic wearing coat 17 is not It is only extremely abrasive, and there is stronger insulating properties, it can effectively ensure that the operational safety of the current transformer, be finally completed this and open Whole work of mouth formula current transformer.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of open type current transformer, including support base (1), stator core (7), rotor core (9), coiling (10) and folder It embraces mechanism (11), it is characterised in that: the center position at the top of the support base (1) is fixed with fixed shell (6), and set casing Right side at the top of body (6) is hinged with movable housing (8) by hinge, is installed between the fixed shell (6) and movable housing (8) There are 6 groups to hold mechanism (11), and the adjacent angle held between mechanism (11) is all 60 °, the fixed shell (6) and active shell The inside of body (8) is separately installed with stator core (7) and rotor core (9), and the two of stator core (7) and rotor core (9) End extends respectively to the outside of fixed shell (6) and movable housing (8) and contacts with each other, the stator core (7) and rotor iron The surface of the heart (9) is all equidistantly wound with coiling (10), and the density of stator core (7) surface coiling (10) is greater than rotor core (9) density of surface coiling (10).

2. a kind of open type current transformer according to claim 1, it is characterised in that: support base (1) bottom Two sides are all fixed with rubber sheet gasket (2).

3. a kind of open type current transformer according to claim 2, it is characterised in that: support base (1) bottom Two sides are all equipped with positioning screw hole (5), and the top of positioning screw hole (5) is all equipped with nut (4), while the bottom of positioning screw hole (5) Portion is all equipped with tight fixed bolt (3), and the top of tight fixed bolt (3) all sequentially passes through rubber sheet gasket (2) and nut (4) and extends To the top of support base (1).

4. a kind of open type current transformer according to claim 1, it is characterised in that: the fixed shell (6) and work The inside of dynamic shell (8) is all equipped with polyethylene body (16), and the inside of polyethylene body (16) is all equidistantly equipped with through-hole (14), graphene heat-conducting layer (15) and ceramic wearing coat and inside and outside polyethylene body (16) are electroplate on wall respectively (17).

5. a kind of open type current transformer according to claim 1, it is characterised in that: at the top of the fixed shell (6) Left side be symmetrically fixed with 2 card slots (13), while the left side of movable housing (8) bottom is symmetrically hinged with 2 grabs (12), and And grab (12) and card slot (13) all mutually clampings.

6. a kind of open type current transformer according to claim 1, it is characterised in that: the mechanism (11) that holds is from upper Fixinig plate (1101), radiation fins (1102) and arc clip (1103) are successively arranged under, fixinig plate is set below (1101) Have arc clip (1103), is fixedly connected between fixinig plate (1101) and arc clip (1103) by radiation fins (1102).