CN205621600U - Current mutual inductor - Google Patents
Current mutual inductor Download PDFInfo
- Publication number
- CN205621600U CN205621600U CN201620482742.7U CN201620482742U CN205621600U CN 205621600 U CN205621600 U CN 205621600U CN 201620482742 U CN201620482742 U CN 201620482742U CN 205621600 U CN205621600 U CN 205621600U
- Authority
- CN
- China
- Prior art keywords
- junction block
- current transformer
- insulating boot
- bolt
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses a current mutual inductor, including mutual inductor body, mutual inductor body includes casing and connection terminal, the connection terminal passes through the bolt fastening on the casing, the bottom of connection terminal is provided with the locating hole, be provided with on the casing with locating hole grafting complex setting element, with the cooperation of aiming at then peg graft of the locating hole on the connection terminal and reference column to peg graft the connection terminal on the casing, at this moment, swivel bolt again, the connection terminal can't rotate on the casing owing to receive the restriction of reference column and locating hole, and messenger's bolt is comparison labour saving and time saving in tightening process, has improved staff's work efficiency.
Description
Technical field
This utility model relates to a kind of inducer, particularly to a kind of current transformer.
Background technology
Current transformer principle is based on what transformer principle was made; current transformer is made up of the iron core closed and winding; its the first side winding number of turn is little; go here and there in needing the circuit of electric current of measurement; therefore it often has whole electric currents of circuit to flow through; secondary side winding turn ratio is more; it is serially connected in measuring instruments and protective loop; current transformer is operationally; its secondary side circuit is Guan Bi all the time; therefore the impedance of measuring instruments and protective loop series coil is the least, and the duty of current transformer is close to short circuit.
nullIn prior art，In the Chinese patent document that number of patent application is " 201520394322.9 "，Describe a kind of current transformer，Including transformer body，Transformer body includes housing，The second fillet is offered by offering the position of the first fillet and rectangular channel and housing end contact in the position in bus hole Yu housing end contact，Before rectangular bus bar is installed in bus hole，Rectangular bus bar elder generation and the first rounded contact on the second fillet and bus hole，First fillet of arc and the second fillet serve the effect of sliding and guiding，Rectangular bus bar sliding is made to enter in bus hole，Facilitate the installation of rectangular bus bar，First fillet and the second fillet prevent bus from colliding with the outer surface of housing，Transformer body also includes junction block，Junction block is provided with groove，The bolt being fixedly connected with the casing it is provided with in groove，The lid that groove can be made to open and close it is hinged with on groove，Thus junction block can be detachably fixed with housing by bolt and be connected，Due on bolt with high-tension electricity，It is easy to get an electric shock when human contact time，By lid, bolt is covered，Serve the effect preventing electric leakage.
Junction block realizes being detachably fixed being connected by bolt with housing, when bolt is tightened, bolt produces friction with junction block upper surface, bolt easily drives junction block to rotate on housing, staff needs manually to fix junction block, makes junction block not rotate, and could be tightened by bolt and put in place, but operate and very waste time and energy, reduce the work efficiency of staff.
Utility model content
The purpose of this utility model is to provide a kind of current transformer, the most time saving and energy saving during making staff be fastened by bolts junction block, improves the work efficiency of staff.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of current transformer, including transformer body, described transformer body includes housing and junction block, described junction block is bolted on housing, the bottom of described junction block is provided with hole, location, described housing is provided with and positions the keeper that hole grafting coordinates.
By using technique scheme, the bottom of junction block is provided with hole, location, housing is provided with keeper, keeper is locating dowel, when junction block is installed, carries out being directed at locating dowel by the hole, location on junction block and then carry out grafting and coordinate, thus junction block is plugged on housing, now, swivel bolt again, junction block is owing to being limited by locating dowel and hole, location, it is impossible to rotate on housing, make bolt the most time saving and energy saving in rundown process, improve the work efficiency of staff.
Further, described keeper is provided with elastic bumps, hole, described location inwall is provided with the clamping groove with elastic bumps snap-fit engagement.
By using technique scheme, keeper is inserted in hole, location, and elastic bumps and clamping groove carry out snap-fit engagement, so that connecting and fixing between junction block and housing, further improves fastness fixing between junction block and housing and stability.
Further, described housing offers the sidewall laminating of the placing trough for placing junction block, the medial wall of described placing trough and junction block.
By using technique scheme, junction block is placed in placing trough, the partial volume making junction block is positioned at placing trough, thus reduces the space that junction block is shared on housing, additionally, the sidewall laminating of the medial wall of placing trough and junction block, so that the gap existed between placing trough and junction block is less, the most very close to each other, it is to avoid dust enters in placing trough, ensure the clean degree that junction block is placed, it is not necessary to often clear up.
Further, described junction block is detachably fixed connection and has the insulating boot for covering on bolt.
By using technique scheme, insulating boot in bolt upper cover, by insulating boot, bolt is hedged off from the outer world out, thus avoids bolt that the situation of electric leakage occurs, improve the safety of current transformer.
Further, described insulating boot and junction block threaded engagement.
By using technique scheme, insulating boot and junction block threaded engagement, facilitate insulating boot and disassemble from junction block, thread connecting mode makes the installation of insulating boot more firmly, stably.
Further, the lateral wall of described insulating boot is provided with facilitates the anti-skidding burr of the rotating insulated cover of staff.
By using technique scheme, when installing insulating boot, the rotating insulated cover of staff, anti-skidding burr contacts with the hands of staff, and anti-skidding burr plays anti-skidding effect, is tightened in thread groove by insulating boot, it is achieved the installation of insulating boot.
Further, described insulating boot and junction block snap-fit engagement.
By using technique scheme, insulating boot and junction block snap-fit engagement, realize the dismounting between insulating boot and junction block by insulating boot and junction block snap-fit engagement, the mode connected and fixed is fairly simple, laborsaving.
Further, the both sides of described junction block are provided with wiring hole, and the inwall of described wiring hole is fixedly connected with the elastic collar for the wire harness that is fixedly clamped.
By using technique scheme, wire harness passes from the internal ring of elastic collar, and elastic collar is made up of elastomeric material, there is certain elasticity, by the elasticity of elastic collar, harness clips is fastened on elastic collar, so that wire harness is fixed on wiring hole, improve the stationarity of wire harness.
In sum, this utility model has the advantages that 1, carry out being directed at locating dowel by the hole, location on junction block and then carry out grafting and coordinate, thus junction block is plugged on housing, now, swivel bolt again, junction block is owing to being limited by locating dowel and hole, location, it is impossible to rotate on housing, make bolt the most time saving and energy saving in rundown process, improve the work efficiency of staff；2, insulating boot in bolt upper cover, is hedged off from the outer world out bolt by insulating boot, thus avoids bolt the situation of electric leakage occur, improves the safety of current transformer；3, the rotating insulated cover of staff, anti-skidding burr contacts with the hands of staff, and anti-skidding burr plays anti-skidding effect, is tightened in thread groove by insulating boot, it is achieved the installation of insulating boot.
Accompanying drawing explanation
Fig. 1 is the structural representation of current transformer in embodiment 1；
Fig. 2 is the exploded perspective view of current transformer in embodiment 1, is used for embodying keeper；
Fig. 3 is the generalized section of junction block in embodiment 1, is used for embodying hole, location；
Fig. 4 is the generalized section of current transformer in embodiment 2.
In figure, 1, transformer body；101, junction block；102, housing；2, keeper；201, elastic bumps；3, bolt；4, through hole；5, insulating boot；501, anti-skidding burr；6, thread groove；7, wire harness；8, elastic collar；9, wiring hole；10, snap ring；11, hole, location；12, clamping groove;13, placing trough；14, groove.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
nullEmbodiment 1: a kind of current transformer，As shown in Figure 1 to Figure 3，Including transformer body 1，Transformer body 1 includes housing 102 and junction block 101，Junction block 101 upper surface concave downward is formed with groove 14，It is provided with in groove 14 and is detachably fixed the bolt 3 being connected with housing 102，The through hole 4 run through straight down for bolt 3 it is provided with on groove 14，Bolt 3 is through screwed hole threaded engagement with housing 102 upper surface after through hole 4，Junction block 101 passes through bolt 3 and is detachably secured on housing 102，The bottom of junction block 101 is provided with hole 11, location，The upper surface of housing 102 is provided with and positions the keeper 2 that hole 11 grafting coordinates，In the present embodiment，Keeper 2 is locating dowel，During link seat 101，Locating dowel and hole 11, location are carried out grafting cooperation，Thus junction block 101 is plugged on housing 102，Now，Again by tighting a bolt 3，Junction block 101 is fixed on housing 102；
The elastic bumps 201 of annular it is surrounded with on the outer circle wall of locating dowel, the clamping groove 12 of annular it is provided with on the inwall of hole 11, location, locating dowel is inserted in hole 11, location, elastic bumps 201 in locating dowel carries out snap-fit engagement with the clamping groove 12 in hole 11, location, so that realizing between housing 102 and junction block 101 connecting and fixing, further enhance the fix tightly solidity of housing 102 and junction block 101.
As shown in Figure 2, housing 102 upper surface offers the placing trough 13 for placing junction block 101, the sidewall laminating of the medial wall of placing trough 13 and junction block 101, in the present embodiment, junction block 101 be shaped as cuboid, corresponding, the shape of placing trough 13 is also for cuboid, junction block 101 is installed and is placed in placing trough 13, the outside side wall laminating of the medial wall of placing trough 13 and junction block 101, make will not leave between junction block 101 and placing trough 13 more gap, the stable placement that junction block 101 obtains.
As shown in Figure 2, it is detachably fixed connection on junction block 101 and has the insulating boot 5 for covering on bolt 3, insulating boot 5 uses the plastic material of insulation to make, it is cylindrically shaped, can be enclosed within the bolt 3 in groove 14, bolt 3 is covered on wherein, in the present embodiment, the mode being detachably fixed connection is threaded, it is provided with external screw thread on the outer circle wall of insulating boot 5, the bottom part ring of groove 14 is wound on the surrounding of bolt 3 and offers annular thread groove 6, it is provided with in thread groove 6 and the female thread of external screw thread threaded engagement, by rotating insulated cover 5, external screw thread and female thread is made to carry out threaded engagement, thus insulating boot 5 is detachably secured on junction block 101；
The anti-skidding burr 501 facilitating the rotating insulated cover of staff 5 it is provided with on the lateral wall of insulating boot 5, in the present embodiment, anti-skidding burr 501 is shaped on the outer circle wall of insulating boot 5, and protrude from the outer circle wall of insulating boot 5, when installing insulating boot 5, by rotating insulated cover 5, anti-skidding burr 501 plays anti-skidding effect, insulating boot 5 is tightened in thread groove 6, it is achieved the installation of insulating boot 5.
As shown in figures 1 and 3, the both sides of junction block 101 are provided with wiring hole 9, and wiring hole 9 is opened on the left and right sides sidewall of junction block 101, by being electrically connected with the element in junction block 101 by wire harness 7 in wiring hole 9, thus realize the electrical connection of current transformer；The elastic collar 8 for the wire harness 7 that is fixedly clamped it is fixedly connected with on the inwall of wiring hole 9, in the present embodiment, elastic collar 8 be shaped as torus, being arranged concentrically with wiring hole 9, and be bonded and fixed on the inwall of wiring hole 9 by elastic collar 8, wire harness 7 passes from the internal ring of elastic collar 8, elastic collar 8 is made up of elastomeric material, there is certain elasticity, by the elasticity of elastic collar 8, wire harness 7 is fixedly clamped on elastic collar 8, so that wire harness 7 is fixed on wiring hole 9.
Embodiment 2: a kind of current transformer, as shown in Figure 4, difference from Example 1 is, insulating boot 5 is snap-fit engagement with the connected mode that is detachably fixed of junction block 101, in the present embodiment, insulating boot 5 be shaped as cylinder, snap ring 10 it is surrounded with on the outer circle wall of insulating boot 5, the bottom of groove 14 offers the annular slot being looped around bolt 3 surrounding, annular slot and snap ring 10 are snap-fit engagement, during installation, the lower surface of insulating boot 5 enters in annular slot, snap ring 10 and annular slot carry out snap-fit engagement, insulating boot 5 is made to be fixed on junction block 101, thus realize insulating boot 5 and junction block 101 be detachably fixed connection.
Claims (8)
1. a current transformer, including transformer body (1), described transformer body (1) includes housing (102) and junction block (101), described junction block (101) is fixed on housing (102) by bolt (3), it is characterized in that: the bottom of described junction block (101) is provided with hole, location (11), described housing (102) is provided with and positions the keeper (2) that hole (11) grafting coordinates.
Current transformer the most according to claim 1, it is characterized in that: on described keeper (2), be provided with elastic bumps (201), hole, described location (11) inwall is provided with the clamping groove (12) with elastic bumps (201) snap-fit engagement.
Current transformer the most according to claim 1, it is characterized in that: on described housing (102), offer the sidewall laminating of the placing trough (13) for placing junction block (101), the medial wall of described placing trough (13) and junction block (101).
Current transformer the most according to claim 1, it is characterised in that: being detachably fixed connection on described junction block (101) has the insulating boot (5) for covering on bolt (3).
Current transformer the most according to claim 4, it is characterised in that: described insulating boot (5) and junction block (101) threaded engagement.
Current transformer the most according to claim 5, it is characterised in that: it is provided with the anti-skidding burr (501) facilitating the rotating insulated cover of staff (5) on the lateral wall of described insulating boot (5).
Current transformer the most according to claim 4, it is characterised in that: described insulating boot (5) and junction block (101) snap-fit engagement.
Current transformer the most according to claim 1, it is characterized in that: the both sides of described junction block (101) are provided with wiring hole (9), the inwall of described wiring hole (9) is fixedly connected with the elastic collar (8) for the wire harness that is fixedly clamped (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620482742.7U CN205621600U (en) | 2016-05-24 | 2016-05-24 | Current mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620482742.7U CN205621600U (en) | 2016-05-24 | 2016-05-24 | Current mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205621600U true CN205621600U (en) | 2016-10-05 |
Family
ID=57024842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620482742.7U Expired - Fee Related CN205621600U (en) | 2016-05-24 | 2016-05-24 | Current mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205621600U (en) |
-
2016
- 2016-05-24 CN CN201620482742.7U patent/CN205621600U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161005 Termination date: 20180524 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |