CN215815567U - Waterproof current-voltage transformer is punctureed to half open and shut open air - Google Patents
Waterproof current-voltage transformer is punctureed to half open and shut open air Download PDFInfo
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- CN215815567U CN215815567U CN202122101143.XU CN202122101143U CN215815567U CN 215815567 U CN215815567 U CN 215815567U CN 202122101143 U CN202122101143 U CN 202122101143U CN 215815567 U CN215815567 U CN 215815567U
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Abstract
The utility model relates to a semi-open-close outdoor puncture waterproof current-voltage transformer which comprises an annular shell, a sealing strip, an iron core, a puncture needle and an output end, wherein the annular shell comprises an upper shell and a lower shell, the iron core and the sealing strip are connected in the upper shell and the lower shell, the sealing strip is embedded in the edges of the inner parts of the upper shell and the lower shell, the iron core in the upper shell is connected with the iron core in the lower shell, the iron core in the lower shell is wound with an induction coil, the induction coil is connected with the output end, the output end is used for measuring a current signal, the output end is fixed on the side surface of the lower shell, the puncture needle is fixedly connected in the lower shell and comprises a needle part, the needle part protrudes towards the upper shell, and the puncture needle is connected with the output end and used for measuring a voltage signal. The utility model has the beneficial effects that: the semi-open-close current-voltage transformer is simple in structure and convenient to install, a puncture needle is arranged in the semi-open-close current-voltage transformer, the installation efficiency is greatly improved, and the cost is reduced.
Description
Technical Field
The utility model relates to the technical field of electrical devices, in particular to a semi-open/close outdoor puncture waterproof current and voltage transformer.
Background
The current transformer is an instrument for converting a large primary side current into a small secondary side current according to the electromagnetic induction principle to measure, consists of a closed iron core and a winding, and has the function of converting a primary current with a larger value into a secondary current with a smaller value through a certain transformation ratio for the purposes of relay protection, electric quantity measurement and the like.
The existing outdoor current transformer opening-closing type transformer is divided into an upper half structure and a lower half structure, the upper half structure and the lower half structure of the opening-closing type transformer are unique, the two half structures are also divided into a front side and a back side, when the outdoor transformer is assembled, the upper structure and the back side of the transformer need to be carefully distinguished, the upper structure and the lower structure of the transformer are easily staggered when an operator installs the transformer, time is consumed, a needle type wire clamp needs to be matched independently for use, and the operation of installing a cable is complex.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a semi-open outdoor puncture waterproof current and voltage transformer which is realized by the following technical scheme.
The utility model provides a waterproof current-voltage transformer is punctureed in open and shut open air in half, includes annular shell, sealing strip, iron core, punctures needle and output, annular shell includes casing and lower casing, go up casing and the internal portion of inferior valve and be connected with iron core and sealing strip, the sealing strip embedding is at the internal portion edge of casing and inferior valve for prevent upper and lower internal portion intake, iron core in the upper casing is connected with the internal iron core of inferior valve, the internal iron core of inferior valve is twining induction coil, induction coil is connected with the output, the output is used for exporting the electric current signal that awaits measuring, the output is fixed in the side of casing down, fixedly connected with punctures the needle in the lower casing, it includes needle portion to puncture the needle portion, needle portion is to the protruding of casing direction, needle portion is used for passing the insulating layer and the wire connection of the cable that awaits measuring, puncture needle and output are connected, used for outputting the voltage signal to be measured.
Furthermore, the needle part is in a sawtooth shape and is used for puncturing the cable insulation layer.
Furthermore, the lower shell is further provided with a connecting wire, and the connecting wire is connected with the puncture needle and used for transmitting the voltage signal to the output end.
Further, the output end comprises a cable, the induction coil and the puncture needle are respectively connected with the cable, and the cable is used for being connected with a measuring instrument to realize measurement of current and voltage signals.
Furthermore, one end of the upper shell is rotatably connected with one end of the lower shell, and the other end of the upper shell is fixedly connected with the other end of the lower shell.
Further, the inner sides of the two ends of the upper shell and the lower shell are provided with fixing devices, the fixing devices are provided with fixing grooves, and the fixing grooves are used for fixing the iron cores.
Furthermore, through holes are formed in the two ends of the upper shell and the lower shell, and the through holes are used for connecting the iron core in the upper shell and the iron core in the lower shell.
Further, a second sealing strip is arranged between the upper shell and the lower shell and fixedly connected with the through hole, and is used for sealing the through hole when the upper shell and the lower shell are closed.
The utility model has the beneficial effects that: compared with the prior art, the semi-open-close current-voltage transformer has the advantages of simple structure, convenience in installation, capability of directly measuring by internally arranging the puncture needle without additionally and independently arranging a needle type wire clamp, simplicity in operation, greatly improved installation efficiency and reduced cost.
Drawings
FIG. 1 is a schematic diagram of the current-voltage transformer of the present invention;
FIG. 2 is an exploded view of the current-to-voltage transformer configuration of the present invention;
in the figure, 1-ring-shaped shell, 11-upper shell, 12-lower shell, 121-fixing base, 122-connecting wire, 13-through hole, 2-sealing strip, 3-iron core, 4-puncture needle, 41-needle part, 5-output end, 51-cable, 6-second sealing strip, 7-fixing device and 71-fixing groove.
Detailed Description
The present invention is further illustrated by the following examples, which are only a part of the examples of the present invention, and these examples are only for explaining the present invention and do not limit the scope of the present invention.
As shown in fig. 1-2, a semi-open-close outdoor piercing waterproof current-voltage transformer comprises an annular housing 1, a sealing strip 2, an iron core 3, a piercing needle 4 and an output end 5, wherein the annular housing 1 comprises an upper housing 11 and a lower housing 12, the upper housing 11 and the lower housing 12 are internally connected with the iron core 3 and the sealing strip 2, the sealing strip 2 is embedded in the inner edges of the upper housing 11 and the lower housing 12 and is used for preventing water from entering the upper housing and the lower housing, the iron core in the upper housing is connected with the iron core in the lower housing, the iron core 3 in the lower housing is wound with an induction coil, the induction coil is connected with the output end 5, the output end 5 is used for outputting a current signal to be tested, the output end 5 is fixed on the side surface of the lower housing 12, the piercing needle 4 is fixedly connected with the lower housing 12, the piercing needle 4 comprises a needle portion 41, and the needle portion 41 protrudes towards the upper housing, the needle portion 41 is used for penetrating through an insulating layer of a cable to be tested to be connected with a conducting wire, and the puncture needle 4 is connected with the output end 5 and used for outputting a current signal to be tested.
In the utility model, the annular housing 1 comprises an upper shell 11 and a lower shell 12, two ends of the iron core of the upper shell are coupled with two ends of the iron core of the lower shell, a sealing strip 2 is embedded at the edge inside the upper shell 11 and the lower shell 12 and is used for sealing the upper shell and the lower shell and preventing the upper shell and the lower shell from water entering and preventing the iron core from rusting and affecting the precision, an output end 5 is fixed at the side surface of the lower shell 12 and is used for outputting measured current and voltage signals, a puncture needle 4 is fixed on the lower shell 12 and a needle part 41 protrudes towards the upper shell direction, the needle part 41 is used for penetrating through an insulating layer of a cable to be measured and is connected with a conducting wire, the puncture needle is connected with the output end, the output end 5 is used for outputting the measured voltage signals, the iron core 3 wound with an induction coil is fixed in the lower shell 12, the induction coil is connected with the output end, the iron cores of the upper shell and the lower shell are connected to form a loop through the actions of the iron core and the induction coil, at this time, the output terminal outputs a current signal. The built-in puncture needle of mutual-inductor gathers voltage signal for current transformer simple structure, effective reduce cost does not need the needle type fastener that is equipped with alone, realizes measuring voltage signal.
The lower shell 12 is provided with a fixed base 121, the puncture needle 4 is fixed on the fixed base 121, and the needle part 41 penetrates through the fixed base 121 and protrudes out of the surface of the lower shell 12, so that the needle part can penetrate through the insulating layer of the cable to be tested and is connected with a lead.
Further, the needle portion 41 is serrated to pierce the cable insulation layer. The needle portion 41 is serrated, which is more favorable for piercing the insulation layer of the cable.
Further, the lower shell 12 is further provided with a connecting wire 122, and the connecting wire 122 is connected with the puncture needle 4 and is used for transmitting the voltage signal to an output end.
Further, the output end 5 comprises a cable 51, the induction coil and the puncture needle are respectively connected with the cable, and the cable 51 is used for being connected with a measuring instrument to realize measurement of current and voltage signals. One end of the cable is connected with the measuring instrument, the other end of the cable is inserted into the lower shell, and the other end of the cable is connected with the puncture needle to measure a voltage signal and is connected with the induction coil to measure a current signal.
Further, one end of the upper shell 11 is rotatably connected with one end of the lower shell 12 through a rotating shaft, the upper shell 11 is fixedly connected with the lower shell 12 in advance, and the other end of the upper shell 11 is fixedly connected with the other end of the lower shell 12 through a bolt. The articulated casing of conveniently opening of one end and casing down, the cable that awaits measuring is placed at last casing under and between the casing, makes when outdoor assembly cable, and operation process is simple and convenient, can also avoid upper and lower casing assembly mistake.
Further, fixing devices 7 are disposed inside both ends of the upper and lower cases 11 and 12, and the fixing devices 7 are provided with fixing grooves 71, and the fixing grooves 71 are used for fixing the iron core 3. The fixing device is fixed in the upper and lower shells through screws, two ends of the iron core 3 are inserted into the fixing grooves 71, and hole grooves are formed in the side faces of the fixing grooves and used for allowing screws to penetrate through the hole grooves to fasten the iron core.
Further, through holes 13 are formed in two ends of the upper shell 11 and the lower shell 12, and the through holes 13 are used for connecting the upper shell with an iron core in the lower shell. When the upper shell and the lower shell are closed, the iron core in the upper shell and the iron core in the lower shell are in contact connection through the through hole, and a loop is formed.
Further, a second sealing strip 6 is arranged between the upper shell and the lower shell, and the second sealing strip 6 is fixedly connected with the through hole 13 and used for sealing the through hole in a closed manner between the upper shell and the lower shell. The mutual inductor adopts the sealing strip and the sealed casing of going up of second sealing strip and lower casing, prevents effectively that the casing is inside to intake, avoids the iron core to rust, can be applied to outdoor and humid environment.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (8)
1. The semi-open-close outdoor puncture waterproof current-voltage transformer is characterized by comprising an annular shell, a sealing strip, an iron core, a puncture needle and an output end, wherein the annular shell comprises an upper shell and a lower shell, the upper shell and the lower shell are internally connected with the iron core and the sealing strip, the sealing strip is embedded into the inner edges of the upper shell and the lower shell and used for preventing the water from entering the inner parts of the upper shell and the lower shell, the iron core in the upper shell is connected with the iron core in the lower shell, the iron core in the lower shell is wound with an induction coil, the induction coil is connected with the output end, the output end is used for outputting a current signal to be detected, the output end is fixed on the side surface of the lower shell, the puncture needle is fixedly connected in the lower shell and comprises a needle part which protrudes towards the upper shell direction, and the needle part is used for passing through an insulating layer of a cable to be detected and is connected with a lead, the puncture needle is connected with the output end and used for outputting a voltage signal to be detected.
2. The semi-open outdoor puncture waterproof current and voltage transformer according to claim 1, wherein the needle portion is serrated for puncturing a cable insulation layer.
3. The semi-open outdoor puncture waterproof current and voltage transformer according to claim 1, wherein the lower shell is further provided with a connecting wire, and the connecting wire is connected with the puncture needle and used for transmitting a voltage signal to an output end.
4. The semi-open outdoor puncture waterproof current-voltage transformer according to claim 3, wherein the output end comprises a cable, the induction coil and the puncture needle are respectively connected with the cable, and the cable is used for being connected with a measuring instrument to realize measurement of current and voltage signals.
5. The semi-open outdoor puncture waterproof current and voltage transformer according to claim 1, wherein one end of the upper casing is rotatably connected with one end of the lower casing, and the other end of the upper casing is fixedly connected with the other end of the lower casing.
6. The semi-open outdoor puncture waterproof current-voltage transformer according to claim 1, wherein fixing means are provided inside both ends of the upper and lower cases, the fixing means being fixed to the upper and lower cases, the fixing means being provided with fixing grooves for fixing the iron core.
7. The semi-open outdoor puncture waterproof current-voltage transformer according to claim 1, wherein the surfaces of the two ends of the upper casing and the lower casing are provided with through holes, and the through holes are used for connecting the iron core in the upper casing and the iron core in the lower casing.
8. The semi-open outdoor puncture waterproof current-voltage transformer according to claim 4, wherein a second sealing strip is arranged between the upper shell and the lower shell, and the second sealing strip is fixedly connected with the through hole and used for sealing the through hole when the upper shell and the lower shell are closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122101143.XU CN215815567U (en) | 2021-09-01 | 2021-09-01 | Waterproof current-voltage transformer is punctureed to half open and shut open air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122101143.XU CN215815567U (en) | 2021-09-01 | 2021-09-01 | Waterproof current-voltage transformer is punctureed to half open and shut open air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215815567U true CN215815567U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122101143.XU Active CN215815567U (en) | 2021-09-01 | 2021-09-01 | Waterproof current-voltage transformer is punctureed to half open and shut open air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215815567U (en) |
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2021
- 2021-09-01 CN CN202122101143.XU patent/CN215815567U/en active Active
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