CN107424816A - Water proof type Open Type Electric Current Mutual Inductor - Google Patents
Water proof type Open Type Electric Current Mutual Inductor Download PDFInfo
- Publication number
- CN107424816A CN107424816A CN201710858387.8A CN201710858387A CN107424816A CN 107424816 A CN107424816 A CN 107424816A CN 201710858387 A CN201710858387 A CN 201710858387A CN 107424816 A CN107424816 A CN 107424816A
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- Prior art keywords
- semi
- ring
- hemizonid
- unshakable
- determination
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/28—Current transformers
- H01F38/30—Constructions
- H01F2038/305—Constructions with toroidal magnetic core
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The present invention relates to a kind of water proof type Open Type Electric Current Mutual Inductor, it includes the first hemizonid of the mutual pairing of both ends of the surface and the second hemizonid and the fastener that first hemizonid and the second hemizonid tighten together, hemizonid includes semi-ring housing and the semi-ring being fixed in the semi circular shells body is unshakable in one's determination, pairing position between semi-ring housing is provided with seal, the seal includes the annular inner seal pad and outer seal sleeve for being separately positioned on the hemizonid both ends, and semi-ring end face unshakable in one's determination is provided with end face magnetic sheet.The present invention has and prevents water, gas cut erosion, easy to install, it is quick detachable the features such as, the measurement suitable for cable current signal under outdoor particularly severe environmental conditions.
Description
Technical field
The present invention relates to a kind of water proof type Open Type Electric Current Mutual Inductor, suitable for cable under outdoor particularly severe environmental conditions
The measurement of current signal.
Background technology
Current transformer is primarily adapted for use in the circuits such as alternative electric generation, power transformation, transmission of electricity, distribution and electricity consumption, mainly by closing
Iron core and winding composition, it is according to electromagnetic induction principle.First winding string is in the circuit for needing to measure electric current, secondary winding
It is serially connected in measuring instrumentss and protective loop, the high voltage of first winding side, high current is transformed to the low electricity of secondary winding side
Pressure, low current, the detection data according to secondary winding obtain the circuit of first winding, and then obtain the electricity being detected on cable
Stream, while the electrical isolation of primary side and secondary side is realized, so as to ensure that the safety of secondary side instrument and equipment and the person.
Annular can be made in iron core, be enclosed on the outside of tested cable, using the tested cable axially across iron core as once
Winding, and only coiling secondary winding on iron core, form of this construction without changing tested cable, it is not necessary to separately set once
The concatenation of winding and progress first winding on tested cable, is thus very easy to the installation, maintenance and use of sensor.
After conventional socket mode of the above-mentioned transformer on cable makes the good current transformer of fixed installation, then by tested cable
Through the center through hole of transformer, the installation of cable is carried out, this mode needs the first frame before the cable of power transmission network is set up
If good current transformer, installation trouble, moreover, especially for high pressure or the power grid system of super-pressure, the maintenance of transformer,
Remove and more preferable all very difficult.
Open Type Electric Current Mutual Inductor is the effective means to solve the above problems, and it uses two semiorbicular phases unshakable in one's determination
Mutual pairing, a complete annular is formed, cut core is arranged on respective semi-circular shell, makes to be tested during installation
Two semi-rings are fixed as one between two semi-rings, are consequently formed bag by cable by way of any suitables such as clip
The annular being trapped among on the outside of cable.But for adverse circumstances such as open airs, above-mentioned open-type transformer is deposited must solve both ways
The problem of good, first, the sealing of the apposition position of semi-ring iron core, does not allow rainwater and air to enter apposition position and form erosion, second, by
The magnetic resistance of apposition position is controlled, and is avoided because pairing gap deteriorates the electromagnetic performance of transformer.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of water proof type Open Type Electric Current Mutual Inductor, not only have just
In install, dismantle and safeguard the features such as, and the apposition position good sealing effect of two semi-rings, and magnetic resistance is small, being advantageous to extension makes
With the life-span, ensure electromagnetic performance.
The technical scheme is that：A kind of water proof type Open Type Electric Current Mutual Inductor, include the of the mutual pairing of both ends of the surface
One hemizonid and the second hemizonid and the fastener that first hemizonid and the second hemizonid tighten together, each institute
Stating hemizonid includes semi-ring housing and the semi-ring being fixed in semi circular shells body iron core, the semi-ring iron of first hemizonid
The semi-ring of the heart and the second hemizonid corresponding pairing end face unshakable in one's determination contacts with each other, the semi-ring housing and second of first hemizonid
Pairing position between the semi-ring housing of hemizonid is provided with seal, the sealing formed between the two semi-ring housings.
The both ends of the semi-ring housing should generally be open, not block semi-ring pairing end face unshakable in one's determination at least so that
Two semi-rings end face unshakable in one's determination can contact with each other after two hemizonid pairings, to reduce magnetic resistance.
The seal can include being separately positioned on the annular inner seal pad at the hemizonid both ends, close in the ring body
The semi-ring that packing is located at hemizonid end is unshakable in one's determination between semi-ring housing, under free state circumferentially（It is right to refer to semi-ring iron core
The annular circumference formed after conjunction）Protruded on the outside of to end face, be in thus circumferential compressive state after pairing, pass through annular inner seal
Mutual extruding between pad, reliable sealing is kept by the elastic force of annular inner seal pad.
Meanwhile the annular inner seal pad is in the axial direction and radially（Refer to the annular footpath formed after semi-ring iron core pairing
To）It can be in the elastic deformation state such as compression and/or stretching, can be set by the shape and size of annular inner seal pad real
These existing deformation, annular inner seal pad is in close contact in all directions with semi-ring iron core and semi-ring housing, ensure
Sealing effectiveness.
The seal can also include outer seal sleeve, and the outer seal sleeve is simultaneously by the two of the apposition position hemizonid sets
It is in close contact wherein and with the outer surface of two hemizonids, forms the external seal to two hemizonid apposition positions.
Preferably, the semi-ring housing is located at axially in open（Refer to the annular axial direction formed after semi-ring iron core pairing）One
The flute profile of side is simultaneously filled with bonding filler, the central part of the semi-ring cavity unshakable in one's determination positioned at the semi-ring housing, with institute
State and spacing left between the inwall of semi-ring housing, the cohesive filler be wrapped in the semi-ring it is unshakable in one's determination around（Refer to radially and all
To outside, do not wrap up the end face for pairing）And it is fixed together the plate ring is unshakable in one's determination with the semi-ring housing.
The cohesive filler should generally be full of the cavity of the semi-ring housing, in the open-mouth formation of semi-ring housing and institute
State the outer surface that semi-ring shell rim is substantially flush.
Preferably, the cohesive filler being filled in semi circular shells body uses epoxy resin, with take into account bond, insulation,
Intensity, toughness and processing facility etc. require.
Filling the concrete mode of bonding filler can be：Position of the semi-ring iron core in semi circular shells body is set, will
Liquid-state epoxy resin is cast in semi circular shells body and solidified, when using the semi-ring housing of flute profile, by the open court of semi-ring housing
On, and can fix semi-ring iron core in both ends setting and block the end face template of port, the shape of end face template and position should
Ensure that cast forms the space for being suitable to setting-in annular inner seal pad in hemizonid end just after bonding filler, then by liquid
Poured with epoxy resin is in semi circular shells body until concordant with the open edge of semi-ring housing.
The fixed groove of setting-in, correspondingly, the inwall of the semi-ring housing can be provided with the annular inner seal pad
On can be provided with the raised line of the fixed groove of the setting-in that can be embedded on the annular inner seal pad, by these grooves and convex
Bar is mutually fitted together to realize the fixation of annular inner seal pad in operation process.
The annular inner seal pad and the outer seal sleeve can use elastomeric material, such as silicon rubber, and preferably logical
Over cure moulding process is formed.
The fastener can be hoop, and the both ends of the hoop are fastened by bolts, and thus, are not only convenient for live peace
Dress, and be fastened on the enough pressure formed on semi-ring iron core pairing end face by bolt, avoid or reduce because being combined to form
Gap and magnetic resistance, it is this particularly when provided with end face magnetic sheet made of the relatively low magnetic material of the hardness such as pure iron piece
Pressure can make end face paster certain deformation occur, between eliminating the convex-concave gap between end face magnetic sheet and adjacent part and tilting
Gap, further improve electromagnetic performance.
The annular groove for being used for installing the hoop can be provided with the radially-outer surface of the semi-ring housing, to facilitate peace
Industry is pretended, avoids hoop from slipping.
Can be provided with some groups of claws on the outer wall of the semi-ring housing in the both sides of the annular groove, every group of claw it
Between be provided with and be used to fix the jam of the hoop, to further facilitate operation and avoid hoop from slipping.
Preferably, semi-ring end face unshakable in one's determination is provided with end face magnetic sheet, and the end face magnetic sheet is the whole end face of covering
Sheet magnetic material, it is preferred to use hardware is relatively low or is made with certain elastic soft magnetic materials, for example, pure iron piece.Can be by leading
End face magnetic sheet is fixed on semi-ring end face unshakable in one's determination by the mode of any suitables such as magnetic gluing knot., can by the setting of end face magnetic sheet
Significantly to reduce the magnetic resistance of apposition position, the optimization magnetic line of force is distributed, and improves the electromagnetic performance of transformer.
Preferably, first semi-ring is unshakable in one's determination and the second semi-ring iron core is formed by the ring-shaped core cutting of steel band coiling unshakable in one's determination
Or folded and formed by steel band piece unshakable in one's determination, prepare in order to be processed according to actual conditions, cut when using same ring-shaped core
Into when, the shape after pairing is substantially identical with the shape of the ring-shaped core.
Preferably, the both ends end face for the semi-ring iron core for being cut out by ring-shaped core or being folded out by steel band piece unshakable in one's determination is through mill
Processing is cut, to form required plane precision.
Preferably, the steel band unshakable in one's determination or steel band piece unshakable in one's determination use amorphous or micro crystal material, to optimize electromagnetic performance.
Preferably, the ring-shaped core is provided with inside and outside（Refer to radially inside and outside）Fixed steel band, the inside and outside fixed steel
With preferred silicon strip, so as to which semi-ring iron core main part made of amorphous or micro crystal material is clamped and fixed inside and outside
Firmly.
Preferably, it is wound with insulating tape on the ring-shaped core.According to the facility of actual preparation technology, when simultaneously provided with solid
When determining steel band and insulating tape, the insulating tape can be located at the outside of the fixed steel band, can also be located at the fixed steel band
Inner side.
By inside and outside fixed steel band and it is wound with insulating tape and ring-shaped core can not only be fixed together, is easy to follow-up work
Skill operation, and electric insulation is realized, and in cross grinding and ring-shaped core cutting, it will be apparent that be advantageous to mitigate because of amorphous or micro-
Edge caused by brilliant steel band fragility crushes, and improves product quality.
Beneficial effects of the present invention are：
Because the present invention is using the hemizonid being mutually butted, in-site installation and dismounting are facilitated；Due to there is provided seal, especially
It is by the combination of the annular inner seal pad or annular inner seal pad and outer seal sleeve of particular configuration, makes unshakable in one's determination in well close
Envelope state, the invasion of the pernicious gas in the water and air in the external world is prevented, is adapted to severe outdoor environment, it will be apparent that be advantageous to
Increase the service life；, can due to being provided with the end face magnetic sheet for having certain plasticity or elasticity on semi-ring pairing end face unshakable in one's determination
End face magnetic sheet is set to deform by extruding of two semi-ring iron cores in docking, to each other and between main part unshakable in one's determination
Contact can be better, eliminates or significantly reduces the pairing end caused by cross grinding precision and other preparation process unshakable in one's determination
Convex-concave gap or slanted gap etc. between face, improve magnetic property；Due to annulus core cutting can be used to form semi-ring iron core, add
Work is more convenient；Due to being ground in cut surface, the space at pairing position is further reduced.
Brief description of the drawings
Fig. 1 is the schematic diagram of an embodiment of the present invention；
Fig. 2 is the semi-ring body diagram of the first hemizonid in embodiment illustrated in fig. 1；
Fig. 3 is the semi-ring body diagram of the second hemizonid in embodiment illustrated in fig. 1；
Fig. 4 is a kind of schematic diagram of annular inner seal pad of the present invention；
Fig. 5 is a kind of schematic diagram of outer seal sleeve of the present invention；
Fig. 6 is the schematic cross-section of hemizonid main part of the present invention；
Fig. 7 is the schematic diagram of hemizonid pairing end face of the present invention（Do not include seal）；
Fig. 8 is a kind of semi-ring of present invention schematic diagram unshakable in one's determination.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As Figure 1-Figure 8, the present invention relates to a kind of water proof type Open Type Electric Current Mutual Inductor, including upper and lower semi-ring are unshakable in one's determination
26 and the upper and lower semi-ring upper and lower semi-ring housing 9,4 unshakable in one's determination is accommodated respectively, can be by the unshakable in one's determination and lower semi circular shells body of lower semi-ring
The hemizonid of composition is referred to as the first hemizonid, and the hemizonid of upper semi-ring semi circular shells body composition unshakable in one's determination and upper is referred to as into the second semi-ring
Body.During in-site installation, the upper and lower hemizonid is respectively placed in above and below cable to be detected and mutual pairing, will be treated
Survey among the annular that conductor grip is formed after pairing, the installation and removal of this transformer need not all move cable.
The upper and lower semi-ring 26 mutual pairings unshakable in one's determination（I.e. end face is docked with what end face was bonded to each other）, the end face magnetic sheet
There is one layer of soft iron piece 28 that plasticity is of a relatively high, magnetic conductivity is good, conductive glue, or pressing can be used to realize end face magnetic sheet
Fixation on semi-ring iron core main part end face, the soft iron piece 28 is in the presence of outside extruding force according to the shape of contact surface
Shape deforms, and between the cut surface for making the soft iron piece 28 and semi-ring iron core, and two be mutually butted are described soft
Good contact can be reached between iron plate 28.
Can on described semi-ring is unshakable in one's determination and/or the lower semi-ring iron core on be provided with secondary winding, the upper and lower semi-ring iron
The butt end of the heart is respectively arranged with respective annular inner seal pad, the inwall of the annular inner seal pad and the semi-ring housing it
Between setting-in fit structure, such as groove and the fin that can be embedded in groove are set.When the upper and lower semi-ring iron core 26 is mutually right
When connecing, two annular inner seal pads 12 mutually compress, and the upper and lower semi-ring iron core 26 and the secondary winding is in close
In seal ring border, completely cut off the invasion of external environment.
The upper and lower semi-ring is unshakable in one's determination to be cast in the semi circular shells body using epoxy resin.Simultaneously as the asphalt mixtures modified by epoxy resin
The presence of fat 3, also makes the lower semi-ring unshakable in one's determination and/or the upper semi-ring is unshakable in one's determination insulated from each other between corresponding secondary winding.
Preferably, a side opening of the semi-ring housing, the flute profile semi-ring housing of a U-shaped profile is formed,
The upper and lower semi-ring iron core 26 is loaded in the inner chamber of the semi-ring housing by this open position, the semi-ring housing
Intracavity section is more than upper and lower semi-ring section unshakable in one's determination, and insulating cement can be generally wound outside the upper and lower semi-ring iron core 26
Band, realize overall fastening and insulation.The epoxy resin is formed to be surrounded to the annular of corresponding semi-ring iron core 26, so ensures institute
State secondary winding to insulate well in whole cross section with the upper and lower semi-ring iron core 26, outside the epoxy resin 3
Side forms the side of the semi-ring housing open-position-side, and now the semi-ring housing only serves support and the effect reinforced in addition,
The upper and lower semi-ring iron core is not all in contact in either direction with the housing.
Preferably, the annular inner seal pad 12 is provided with the projection 23 axially extended or groove, the semi-ring housing
Inwall be provided with projection 23 or the groove 25 of fit depressions or projection on the semi-ring housing, be easy to by it is described it is annular in
Sealing gasket is fixed in the semi circular shells body, due to the semi-ring housing inwall it is relatively thin, the annular inner seal pad 12 is
Flexible material, to ensure that the fixation of the annular inner seal pad 12 needs the larger groove of depth, therefore it is preferred that in the semi circular shells
The inwall of body sets projection, and the annular inner seal pad sets groove；It is excellent if selecting the inwall in the semi-ring housing to set groove
The inwall for being selected in the housing sets formation groove among two projections being parallel to each other, and will not only weaken the semi-ring housing
Intensity, play a part of reinforcement on the contrary.
The annular inner seal pad 12 is provided with the groove 22 radially extended on the side of the semi-ring housing open-position-side,
The depth of this groove should be less than the height of the semi-ring housing sidewall.
Preferably, the docking region of the upper and lower semi-ring housing is arranged with outer seal sleeve 2, and the outer seal sleeve is around institute
State the pairing position of semi-ring housing and be fitted close, being capable of Jiang Shui and big by setting the outer seal sleeve 2 to form sealed environment
Part air bound absolutely outside, reduces the environment that the annular inner seal pad 12 of inside is subject to, and extension fixture uses the longevity
Life, while better seal effect is reached by inside and outside dual sealing.
Preferably, the annular inner seal pad 12 and the outer seal sleeve 2 are shaped using silicon rubber vulcanization, are preferably suitable to family
Outer silicon rubber vulcanization shaping, has good sealing effect, has the characteristics that high temperature resistant, cold-resistant, humidity.
Preferably, the upper and lower semi-ring iron core 26 diametrically cuts to be formed or by steel using the full circle ring of steel band coiling
Band, which folds, to be formed, smooth by the cross grinding for cutting the end face formed or being formed by folding, and ensures that the upper and lower semi-ring is unshakable in one's determination
26 docking are good, form closed magnetic circuit.
The grinding of the semi-ring end face of iron core is preferably carried out after destressing processing., should be by half before destressing processing
Ring iron core inner ring and the fixation steel band 27 of outer ring are installed on semi-ring steel band to be fixed, using mould and/or fixture from inner ring and
By the clamping unshakable in one's determination of whole semi-ring on the outside of the fixation steel band of outer ring, mould and fixture can use existing prior art, then to solid
Determine the long side of steel band（At the sideways edge of semi-ring stalk）It is ground, removes fixed steel band and exceed semi-ring stalk line side
The part in face, but do not injure（It is not ground to substantially）Semi-ring axial sides unshakable in one's determination, destressing process is sent into according to conventional skill
Art or other appropriate technologies carry out destressing processing, and after completing destressing technique, epoxy is modified to semi-ring end unshakable in one's determination
Resin is coated and is ground after solidifying, and based on the modified epoxy is conventional bisphenol A type epoxy resin, adds phase
When in the reactive polyamide resin of bisphenol A type epoxy resin quality 15%, 15% silicon rubber and 2.5% nanomete talc powder
Modified product, grinding method are used in a manner of the peripheral grinding of grinding wheel cylindrical surface grinding, are ground direction（Emery wheel is relative to end face
The direction of motion）Radially, preferably to fix the direction of steel band from outer ring fixation steel band to inner ring, fixture should be used in grinding process
Whole semi-ring end unshakable in one's determination is clamped on the outside of the fixation steel band of inner ring and outer ring, can be fine using this grinding method
Ground avoids, because the high fragility of amorphous or microcrystalline core steel band causes edge breakage in grinding process, after the completion of cross grinding, holding
The good end face magnetic sheet of bonded/fixed on face, then carry out conventional epoxy resin coating or cast.
Preferably, upper and lower semi-ring inner ring unshakable in one's determination and outer ring are provided with fixed steel band 27, for preventing in bruting process
In caused edge Fragmentation Phenomena, the outward flange of the fixed steel band 27 is concordant with the interface that the upper and lower semi-ring is unshakable in one's determination.
Preferably, the upper and lower semi-ring housing 9,4 is fixed together using hoop 7, the outer wall of the semi-ring housing
Provided with the annular groove 24 for installing the hoop, the hoop 7 is prevented to be moved in the axial direction, or even from the semi-ring
Slid on housing, the consistency of thickness of the depth of the annular groove 24 about with the hoop 7.
Preferably, it is provided with some groups of claws on the outer wall of the semi-ring housing in the both sides of the annular groove 24, every group
Claw includes four claws 5, and both sides respectively have two, and two opening directions of claw 5 of the same side are relative, and preferably described claw 5 is certainly
Junction gradually increases to opening opening, and the jam 6 for being used for fixing the hoop 7, the jam 7 are provided between every group of claw
Edge it is identical with the opening shape of the claw 5 and can be plugged between the claw 5, the connection end of the hoop 7 passes through
Bolt 8 fastens.
Preferably, two binding posts 1 for being set on semi circular shells body and pouring and being fixed in the epoxy resin can be descended, are made
For the connection end of secondary winding, the lower section of the lower semi circular shells body 9 is provided with mounting seat 10, for the installation in respective holder,
The mounting seat 10 is integrally formed or is separately provided with the lower semi circular shells body 9.
Upper and lower facility only in statement in described upper and lower semi-ring housing etc., is a kind of occupation mode, is not all of
Occupation mode, do not form to the upper and lower under real use state to restriction.
It is disclosed by the invention it is each preferably with optional technological means, unless otherwise indicated and one preferably or can selecting technology hand
Section is outside the further restriction of another technological means, can form some different technical schemes in any combination.
Claims (10)
1. a kind of water proof type Open Type Electric Current Mutual Inductor, it is characterised in that the first hemizonid including the mutual pairing of both ends of the surface and
Two hemizonids and the fastener that first hemizonid and the second hemizonid tighten together, each hemizonid wrap
The semi-ring for including semi-ring housing and being fixed in the semi circular shells body is unshakable in one's determination, the semi-ring iron core of first hemizonid and the second semi-ring
The semi-ring of body corresponding pairing end face unshakable in one's determination contacts with each other, the semi-ring housing of first hemizonid and the semi-ring of the second hemizonid
Pairing position between housing is provided with seal.
2. water proof type Open Type Electric Current Mutual Inductor according to claim 1, it is characterised in that the seal includes difference
The annular inner seal pad at the hemizonid both ends is arranged on, the ring body interior sealing pad is located at the semi-ring iron of hemizonid end
Between the heart and semi-ring housing, in circumferential compressive state.
3. water proof type Open Type Electric Current Mutual Inductor according to claim 2, it is characterised in that the seal also includes outer
Sealing shroud, the outer seal sleeve are simultaneously wherein and close with the outer surface of two hemizonids by the two of the apposition position hemizonid sets
Contact.
4. water proof type Open Type Electric Current Mutual Inductor according to claim 3, it is characterised in that the semi-ring housing is in opening
Positioned at axial side flute profile and filled with bonding filler, the center of the semi-ring cavity unshakable in one's determination positioned at the semi-ring housing
Spacing is left between position, and the inwall of the semi-ring housing, the cohesive filler is wrapped in semi-ring surrounding unshakable in one's determination simultaneously
Be fixed together the plate ring is unshakable in one's determination with the semi-ring housing, the cohesive filler the open-mouth of semi-ring housing formed with
The outer surface that the semi-ring shell rim is substantially flush.
5. water proof type Open Type Electric Current Mutual Inductor according to claim 4, it is characterised in that be filled in semi circular shells body
The cohesive filler uses epoxy resin.
6. water proof type Open Type Electric Current Mutual Inductor according to claim 5, it is characterised in that the fastener is hoop,
The radially-outer surface of the semi-ring housing is provided with the annular groove for being used for installing the hoop, and the both ends of the hoop pass through spiral shell
Bolt fastens.
7. water proof type Open Type Electric Current Mutual Inductor according to claim 6, it is characterised in that the outer wall of the semi-ring housing
On be provided with some groups of claws in the both sides of the annular groove, the jam for being used for fixing the hoop is provided between every group of claw.
8. according to any described water proof type Open Type Electric Current Mutual Inductor in claim 1-7, it is characterised in that the semi-ring iron
The end face of the heart is provided with end face magnetic sheet.
9. water proof type Open Type Electric Current Mutual Inductor according to claim 8, it is characterised in that first semi-ring it is unshakable in one's determination and
Second semi-ring iron core is formed or folded by steel band piece unshakable in one's determination by the ring-shaped core cutting of steel band coiling unshakable in one's determination and formed, by annular iron
The both ends end face that the heart is cut out or the semi-ring that is folded out by steel band piece unshakable in one's determination is unshakable in one's determination is through grinding.
10. water proof type Open Type Electric Current Mutual Inductor according to claim 9, it is characterised in that the steel band unshakable in one's determination or iron core
Steel band piece uses amorphous or micro crystal material, and the semi-ring iron core is provided with inside and outside fixed steel band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710858387.8A CN107424816A (en) | 2017-09-21 | 2017-09-21 | Water proof type Open Type Electric Current Mutual Inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710858387.8A CN107424816A (en) | 2017-09-21 | 2017-09-21 | Water proof type Open Type Electric Current Mutual Inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107424816A true CN107424816A (en) | 2017-12-01 |
Family
ID=60433375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710858387.8A Pending CN107424816A (en) | 2017-09-21 | 2017-09-21 | Water proof type Open Type Electric Current Mutual Inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107424816A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346270A (en) * | 2018-10-23 | 2019-02-15 | 河北中开明泰电气设备有限公司 | A kind of environment-friendly type assembly plastic housing and mutual inductor |
| WO2020223776A1 (en) * | 2019-05-03 | 2020-11-12 | Treetech Sistemas Digitais Ltda | System, method and device for monitoring the sealing of electrical equipment and electrical equipment with monitored sealing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201122507Y (en) * | 2007-12-13 | 2008-09-24 | 蔡泽慧 | Openable current mutual inductor |
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| CN109346270A (en) * | 2018-10-23 | 2019-02-15 | 河北中开明泰电气设备有限公司 | A kind of environment-friendly type assembly plastic housing and mutual inductor |
| CN109346270B (en) * | 2018-10-23 | 2020-04-17 | 河北中开明泰电气设备有限公司 | Environment-friendly assembled plastic shell and mutual inductor |
| WO2020223776A1 (en) * | 2019-05-03 | 2020-11-12 | Treetech Sistemas Digitais Ltda | System, method and device for monitoring the sealing of electrical equipment and electrical equipment with monitored sealing |
| US11867772B2 (en) | 2019-05-03 | 2024-01-09 | Treetech Sistemas Digitais Ltda | System, method and device for monitoring the sealing of electrical equipment and electrical equipment with monitored sealing |
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