CN213124127U - Novel current transformer - Google Patents
Novel current transformer Download PDFInfo
- Publication number
- CN213124127U CN213124127U CN202021395548.8U CN202021395548U CN213124127U CN 213124127 U CN213124127 U CN 213124127U CN 202021395548 U CN202021395548 U CN 202021395548U CN 213124127 U CN213124127 U CN 213124127U
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- China
- Prior art keywords
- current transformer
- screw rod
- fixed block
- tight
- guide
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- 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
Links
- 238000004804 winding Methods 0.000 claims description 23
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model provides a novel current transformer, which comprises a current transformer body, a fixed block fixedly arranged on the end surface of the body and a jacking component arranged on the fixed block; a plurality of fixing blocks are arranged on the end faces of the two ends of the body; the central point of current transformer puts and opens the shaft hole that has the circuit that is used for passing the awaiting measuring, the fixed block sets up around shaft hole circumference, the tight subassembly in top includes the tight screw rod in top, be equipped with the screw hole that corresponds with the tight screw rod in top on the fixed block, the tight screw rod in top and fixed block threaded connection, the tight screw rod in top radially sets up around the axis of body, the one end that the tight screw rod in top is close to the circuit that awaits measuring is equipped with the arc that presss from both sides tight circuit that awaits measuring. Novel current transformer through comparatively reasonable structural design realized being the fixed of the circuit that awaits measuring of circular structure with current transformer and cross-section.
Description
Technical Field
The utility model belongs to the technical field of current transformer, especially, relate to a novel current transformer.
Background
Current transformer utilizes the equipment of electromagnetism principle test power supply line or copper bar medium-current size, and current transformer mostly can not be with the cross-section for the circuit snap-on of circular structure, just so makes when using need consider many-sided factor, for example how to fix current transformer, how to lay the circuit that awaits measuring, just causes the installation effectiveness low, and the complicated condition of installation.
Disclosure of Invention
In view of this, the present invention is directed to a novel current transformer to solve the problem that most of the current transformers cannot be directly fixed to a circuit with a circular cross-section.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a novel current transformer comprises a current transformer body, a fixed block fixedly arranged on the end face of the current transformer body and a jacking assembly arranged on the fixed block;
a plurality of fixing blocks are arranged on the end faces of the two ends of the body;
the central position of the current transformer is provided with a shaft hole for passing through a line to be tested, the fixed block is arranged around the shaft hole in the circumferential direction,
the tight subassembly in top includes the tight screw rod in top, be equipped with the screw hole that corresponds with the tight screw rod in top on the fixed block, the tight screw rod in top and fixed block threaded connection, the tight screw rod in top radially sets up around the axis of body, the one end that the tight screw rod in top is close to the circuit that awaits measuring is equipped with the arc that presss from both sides tight circuit that awaits measuring.
Furthermore, four fixing blocks are arranged on each end face of the body, and the distances between the four fixing blocks are the same.
Further, a fixed threaded cylinder is poured on the fixed block, and the jacking screw rod is in threaded connection with the threaded cylinder;
and a knob is arranged at one end of the jacking screw rod, which is far away from the arc-shaped plate.
Furthermore, one side of the arc-shaped plate, which is close to the jacking screw rod, extends outwards to form a connecting cylinder, a cylindrical hole is formed in the inner side of the connecting cylinder, a guide cylinder is arranged in the cylindrical hole, and a guide hole is formed in the center of the guide cylinder;
the connecting cylinder is made of an insulating material, and the guide cylinder is made of a metal material;
the outer diameter of the guide cylinder is larger than the diameter of the cylindrical hole, and the guide cylinder is in interference connection with the connecting cylinder;
and the end part of the jacking screw rod is provided with a guide part corresponding to the guide hole.
Further, the diameter of the guide part is smaller than that of the jacking screw;
one end of the guide cylinder, which is far away from the jacking screw rod, is closed;
the length of the guide part is greater than the depth of the guide hole.
Furthermore, the end part of the guide part is of a hemispherical structure.
Furthermore, a connecting component corresponding to the arc-shaped plate is arranged on the line to be tested;
the connecting assembly comprises a winding layer and a hard ring, wherein the winding layer is wound and fixed on a circuit to be tested, the hard ring is fixed on the outer side of the winding layer, an opening is formed in the side surface of the hard ring, the hard ring is sleeved on the outer side of the winding layer through the opening, the hard ring is fixedly bonded with the winding layer, and the opening of the hard ring is fixedly bonded;
the outer diameter of the hard circular ring corresponds to the diameter of the arc-shaped plate.
Furthermore, two sides of the hard circular ring are also provided with limiting rings, the outer diameter of each limiting ring is larger than that of the hard circular ring, and the limiting rings and the hard circular ring are integrally formed;
the distance between the two limiting rings corresponds to the width of the arc-shaped plate.
Compared with the prior art, novel current transformer have following advantage:
novel current transformer through comparatively reasonable structural design realized with current transformer and cross-section for the fixed of the circuit that awaits measuring of circular structure, convenient operation, and the mounted position is nimble, has better practicality.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a view of the installation structure of the novel current transformer according to the embodiment of the present invention.
Fig. 2 is a partial structure diagram of the novel current transformer according to the embodiment of the present invention;
fig. 3 is a structural diagram of a jacking assembly according to an embodiment of the present invention.
Description of reference numerals:
1. a body; 2. a fixed block; 21. a threaded barrel; 3. tightly pushing the screw; 31. a knob; 32. a guide portion; 4. an arc-shaped plate; 41. a connecting cylinder; 42. a guide cylinder; 5. a winding layer; 6. a hard ring; 61. a limiting ring; 7. and (6) a line to be tested.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1 to 3, a novel current transformer comprises a current transformer body 1, a fixed block 2 fixedly arranged on an end surface of the body 1, and a tightening assembly arranged on the fixed block 2; the body 1 comprises an annular iron core, an epoxy resin pouring layer poured on the outer side of the iron core and a secondary winding fixedly poured with the iron core, and a wiring terminal of the secondary winding is arranged on the body 1;
a plurality of fixing blocks 2 are arranged on the end faces of the two ends of the body 1;
the central position of the current transformer is provided with a shaft hole for passing through a line 7 to be tested, the fixed block 2 is arranged around the shaft hole in the circumferential direction,
the tight subassembly in top is including pushing up tight screw rod 3, be equipped with the screw hole that corresponds with the tight screw rod 3 in top on the fixed block 2, push up tight screw rod 3 and 2 threaded connection of fixed block, the tight screw rod 3 in top radially sets up around the axis of body 1, the one end that the tight screw rod 3 in top is close to circuit 7 that awaits measuring is equipped with the arc 4 that presss from both sides tight circuit 7 that awaits measuring. The arc-shaped plate 4 is a hard plastic plate.
Four fixing blocks 2 are arranged on each end face of the body 1, and the distances among the four fixing blocks 2 are the same.
A fixed threaded cylinder 21 is poured on the fixed block 2, and the jacking screw rod 3 is in threaded connection with the threaded cylinder 21;
and a knob 31 is arranged at one end of the tightening screw rod 3 far away from the arc-shaped plate 4.
One side of the arc-shaped plate 4, which is close to the jacking screw rod 3, extends outwards to form a connecting cylinder 41, a cylindrical hole is formed in the inner side of the connecting cylinder 41, a guide cylinder 42 is arranged in the cylindrical hole, and a guide hole is formed in the center of the guide cylinder 42;
the connecting cylinder 41 is made of an insulating material, and the guide cylinder 42 is made of a metal material;
the outer diameter of the guide cylinder 42 is larger than the diameter of the cylindrical hole, the guide cylinder 42 is in interference connection with the connecting cylinder 41, and the guide cylinder 42 is inserted into the cylindrical hole;
the end of the tightening screw 3 is provided with a guide part 32 corresponding to the guide hole.
The diameter of the guide part 32 is smaller than that of the jacking screw rod 3; one end of the guide cylinder 42, which is far away from the tightening screw 3, is closed, when the tightening screw 3 is rotated, the hemispherical structure of the guide part 32 is directly contacted with the closed part and is not contacted with the connecting cylinder 41, and because the closed part is also of a metal structure, the abrasion is small during rotation, the generated friction force is small, the service life is long, and the rotation is convenient; the guide portion 32 has a length greater than the depth of the guide hole.
The end of the guide part 32 is a hemispherical structure. The friction force generated between the guide part 32 and the guide cylinder 42 when the jacking screw rod 3 is rotated is reduced by the hemispherical structure, and the operation is convenient.
The line 7 to be tested is provided with a connecting component corresponding to the arc-shaped plate 4;
the connecting assembly comprises a winding layer 5 fixed on a circuit 7 to be tested in a winding mode and a hard ring 6 fixed on the outer side of the winding layer 5, an opening is formed in the side face of the hard ring 6, the hard ring 6 is connected to the outer side of the winding layer 5 in a sleeved mode through the opening, the hard ring 6 is fixedly bonded with the winding layer 5, and the opening of the hard ring 6 is fixedly bonded;
the outer diameter of the hard circular ring 6 corresponds to the diameter of the arc-shaped plate 4. The winding layer 5 can be an adhesive tape, and the hard ring 6 is a hard plastic ring;
limiting rings 61 are further arranged on two sides of the hard circular ring 6, the outer diameter of each limiting ring 61 is larger than that of the hard circular ring 6, and the limiting rings 61 and the hard circular ring 6 are integrally formed;
the spacing between the two stop rings 61 corresponds to the width of the arc-shaped plate 4. An annular groove for limiting the arc plate 4 is formed by two limiting rings 61.
The installation process comprises the following steps: pass circuit 7 that awaits measuring promptly primary winding from current transformer's shaft hole, then fixed winding layer 5 on the circuit 7 that awaits measuring at shaft hole both ends, after twining certain thickness, cup joint stereoplasm ring 6 in the winding layer 5 outside through predetermined opening, the opening part bonding of stereoplasm ring 6 is fixed, also fix through bonding between stereoplasm ring 6 and the winding layer 5, fix two stereoplasm rings 6 backs, place arc 4 in the annular groove that forms between spacing ring 61, then screw up tight screw rod 3 in top, with pushing up tightly between arc 4 and the stereoplasm ring 6, realize current transformer and the cross-section be circular structure's circuit 7 fixed connection that awaits measuring through a plurality of tight subassemblies in top, and convenient operation, and the mounted position is nimble.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A novel current transformer is characterized in that: the current transformer comprises a current transformer body, a fixed block fixedly arranged on the end face of the current transformer body and a jacking assembly arranged on the fixed block;
a plurality of fixing blocks are arranged on the end faces of the two ends of the body;
the central position of the current transformer is provided with a shaft hole for passing through a line to be tested, the fixed block is arranged around the shaft hole in the circumferential direction,
the tight subassembly in top includes the tight screw rod in top, be equipped with the screw hole that corresponds with the tight screw rod in top on the fixed block, the tight screw rod in top and fixed block threaded connection, the tight screw rod in top radially sets up around the axis of body, the one end that the tight screw rod in top is close to the circuit that awaits measuring is equipped with the arc that presss from both sides tight circuit that awaits measuring.
2. The novel current transformer of claim 1, wherein: four fixing blocks are arranged on each end face of the body, and the distances among the four fixing blocks are the same.
3. The novel current transformer of claim 1, wherein: a fixed threaded cylinder is poured on the fixed block, and the jacking screw rod is in threaded connection with the threaded cylinder;
and a knob is arranged at one end of the jacking screw rod, which is far away from the arc-shaped plate.
4. The novel current transformer of claim 1, wherein: one side of the arc-shaped plate, which is close to the jacking screw rod, extends outwards to form a connecting cylinder, a cylindrical hole is formed in the inner side of the connecting cylinder, a guide cylinder is arranged in the cylindrical hole, and a guide hole is formed in the center of the guide cylinder;
the connecting cylinder is made of an insulating material, and the guide cylinder is made of a metal material;
the outer diameter of the guide cylinder is larger than the diameter of the cylindrical hole, and the guide cylinder is in interference connection with the connecting cylinder;
and the end part of the jacking screw rod is provided with a guide part corresponding to the guide hole.
5. The novel current transformer of claim 4, wherein: the diameter of the guide part is smaller than that of the jacking screw;
one end of the guide cylinder, which is far away from the jacking screw rod, is closed;
the length of the guide part is greater than the depth of the guide hole.
6. The novel current transformer of claim 4, wherein: the end part of the guide part is of a hemispherical structure.
7. The novel current transformer of claim 1, wherein: the circuit to be tested is provided with a connecting component corresponding to the arc-shaped plate;
the connecting assembly comprises a winding layer and a hard ring, wherein the winding layer is wound and fixed on a circuit to be tested, the hard ring is fixed on the outer side of the winding layer, an opening is formed in the side surface of the hard ring, the hard ring is sleeved on the outer side of the winding layer through the opening, the hard ring is fixedly bonded with the winding layer, and the opening of the hard ring is fixedly bonded;
the outer diameter of the hard circular ring corresponds to the diameter of the arc-shaped plate.
8. The novel current transformer of claim 7, wherein: limiting rings are further arranged on two sides of the hard circular ring, the outer diameter of each limiting ring is larger than that of the hard circular ring, and the limiting rings and the hard circular ring are integrally formed;
the distance between the two limiting rings corresponds to the width of the arc-shaped plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021395548.8U CN213124127U (en) | 2020-07-15 | 2020-07-15 | Novel current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021395548.8U CN213124127U (en) | 2020-07-15 | 2020-07-15 | Novel current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213124127U true CN213124127U (en) | 2021-05-04 |
Family
ID=75678811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021395548.8U Expired - Fee Related CN213124127U (en) | 2020-07-15 | 2020-07-15 | Novel current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213124127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114627605A (en) * | 2022-03-22 | 2022-06-14 | 河南浙之锐科技有限公司 | Multifunctional electrical fire detector |
-
2020
- 2020-07-15 CN CN202021395548.8U patent/CN213124127U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114627605A (en) * | 2022-03-22 | 2022-06-14 | 河南浙之锐科技有限公司 | Multifunctional electrical fire detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210504 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |