CN216250248U - Iron-based amorphous nanocrystalline direct-current component resistant current transformer - Google Patents
Iron-based amorphous nanocrystalline direct-current component resistant current transformer Download PDFInfo
- Publication number
- CN216250248U CN216250248U CN202122786132.XU CN202122786132U CN216250248U CN 216250248 U CN216250248 U CN 216250248U CN 202122786132 U CN202122786132 U CN 202122786132U CN 216250248 U CN216250248 U CN 216250248U
- Authority
- CN
- China
- Prior art keywords
- shell
- heat dissipation
- iron
- current transformer
- based amorphous
- 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.)
- Active
Links
Images
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model discloses an iron-based amorphous nanocrystalline direct-current component resistant current transformer, which relates to the technical field of current transformers and comprises a shell and a sealing device, wherein the sealing device is movably arranged on the upper surface of the shell, wiring devices are fixedly arranged on the front surface and the rear surface of the shell, and heat dissipation devices are arranged on the left surface and the right surface of the shell. According to the utility model, the heat dissipation device is added to effectively dissipate internal heat, the insulating filter screen insulates and separates the internal winding and the iron core from the external heat dissipation holes, so that the winding and the iron core are prevented from threatening operators through the heat dissipation holes, namely, the effect of effective heat dissipation is achieved, the purpose of protecting the internal iron core, the winding and the external operators is achieved, the external protection device is added to protect the wiring terminal, the effect of protecting the internal wiring terminal from external humid air is achieved, the purpose of protecting the external operators is achieved, and accidental electric shock during operation is prevented.
Description
Technical Field
The utility model relates to a current transformer, relates to the technical field of current transformers, and particularly relates to an iron-based amorphous nanocrystalline direct-current component resistant current transformer.
Background
The principle of the current transformer is based on the electromagnetic induction principle, the current transformer is composed of a closed iron core and a winding, the number of turns of a primary side winding of the current transformer is small, and the primary side winding is connected in series with a circuit of current to be measured, so that all current of the circuit always flows through the current transformer, the number of turns of a secondary side winding is large, the secondary side winding is connected in series with a measuring instrument and a protection loop, when the current transformer works, a secondary side loop of the current transformer is always closed, therefore, the impedance of the series coil of the measuring instrument and the protection loop is small, the working state of the current transformer is close to a short circuit, the current transformer converts large current on the primary side into small current on the secondary side for use, and the secondary side cannot be opened. The following problems exist in the prior art:
1. the current transformer generates a large amount of heat on the surfaces of the winding and the iron core after being subjected to electromagnetic induction in the working process, the heat is sealed in the inner groove by the sealing device and cannot be effectively dissipated, and internal equipment is easily damaged;
2. the wiring end of the current transformer adopts a bare connection method of directly connecting with a wire, so that no influence is caused in a small current circuit, and in a large current circuit, the wiring end is bare, so that the wiring end is easy to cause short circuit due to external damp air, and meanwhile, the safety of operators is possibly threatened.
SUMMERY OF THE UTILITY MODEL
The utility model provides an iron-based amorphous nanocrystalline direct-current component resistant current transformer, which has a heat dissipation effect and solves the problem that heat accumulation cannot be effectively dissipated; the other purpose is to solve the problem that the terminal is exposed so as to achieve the effect of protecting the operator while protecting the terminal from short circuit.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
the iron-based amorphous nanocrystalline direct-current component resistant current transformer comprises a shell and a sealing device, wherein the sealing device is movably mounted on the upper surface of the shell, wiring devices are fixedly mounted on the front surface and the rear surface of the shell, and heat dissipation devices are arranged on the left surface and the right surface of the shell.
The wiring device comprises an outer protection device, the outer protection device is fixedly arranged on the left side and the right side of the front surface and the rear surface of the shell, and an inner connecting device is fixedly arranged in the outer protection device.
The technical scheme of the utility model is further improved as follows: the outer protection device comprises a fixed sleeve, the fixed sleeve is fixedly arranged on the left side and the right side of the front surface and the rear surface of the shell, the outer surface of the fixed sleeve is in threaded sleeve connection with a protective sleeve, and the upper end of the inner portion of the protective sleeve is movably sleeved with a fastening sleeve.
Adopt above-mentioned technical scheme, through protective sheath, adapter sleeve and fixed sleeve's cooperation in this scheme, play the guard action to the binding post end.
The technical scheme of the utility model is further improved as follows: the inner connecting device comprises a wiring terminal, the wiring terminal is fixedly arranged in the fixing sleeve, and a wiring fastening bolt is sleeved on the upper surface of the wiring terminal in a threaded manner.
By adopting the technical scheme, the purpose that the device is communicated with an external lead is realized through the matching between the binding post and the wiring fastening bolt in the scheme.
The technical scheme of the utility model is further improved as follows: the heat dissipation device comprises heat dissipation holes, the heat dissipation holes are formed in the left side and the right side of the shell, and insulating filter screens are fixedly arranged on the inner sides of the heat dissipation holes and on the left wall and the right wall of the inner side of the shell.
By adopting the technical scheme, the purpose of heat dissipation of the device is realized through the cooperation between the heat dissipation holes and the insulating filter screen in the scheme.
The technical scheme of the utility model is further improved as follows: an inner groove is formed in the shell, an iron core is fixedly installed in the inner groove, a primary winding is fixedly installed on the periphery of the front end of the iron core, and a secondary winding is fixedly installed on the periphery of the rear end of the iron core.
By adopting the technical scheme, the mutual inductance of the current is realized through the matching among the iron core, the primary winding and the secondary winding.
The technical scheme of the utility model is further improved as follows: the sealing device comprises a sealing sliding groove, the sealing sliding groove is fixedly arranged on the front side and the rear side of the upper surface of the shell, a sealing plate is movably arranged inside the sealing sliding groove, and a fixing bolt is in threaded connection with the right side of the upper surface of the sealing plate.
By adopting the technical scheme, the sealing of the whole shell is realized through the matching of the sealing plate and the fixing bolt in the scheme.
The technical scheme of the utility model is further improved as follows: the wiring terminals are fixedly arranged on the left side and the right side of the front surface and the rear surface of the shell, the wiring terminals are fixedly connected to the left wiring terminal and the right wiring terminal of the secondary winding at the front end, and the wiring terminals are fixedly connected to the left wiring terminal and the right wiring terminal of the primary winding at the rear end.
By adopting the technical scheme, the purpose of connecting the internal mutual inductance device with an external device is realized through the connection of the binding post, the primary winding and the secondary winding.
Due to the adoption of the technical scheme, compared with the prior art, the utility model has the technical progress that:
1. the utility model provides an iron-based amorphous nanocrystalline direct current component resistant current transformer, which is additionally provided with a heat dissipation device, wherein the heat dissipation device can effectively dissipate internal heat through heat dissipation holes, and simultaneously, an insulating filter screen is additionally arranged in the heat dissipation holes to prevent external dust from entering an inner groove through the heat dissipation holes and influencing the normal work of an internal iron core and windings, and simultaneously, the insulating filter screen insulates and separates the internal winding and the iron core from external heat dissipation holes to prevent the windings and the iron core from threatening operators through the heat dissipation holes, so that the effect of effective heat dissipation is achieved through the cooperation of the heat dissipation holes and the insulating filter screen, and the purpose of protecting the internal iron core, the windings and the external operators is achieved.
2. The utility model provides an iron-based amorphous nanocrystalline direct current component resistant current transformer, which is additionally provided with an external protection device, wherein an external lead is fixed on a wiring terminal through a wiring fastening bolt, and a protective sleeve is screwed on a fixed sleeve to ensure that the wiring terminal is not exposed and protected inside, thereby not only playing the effect of protecting the internal wiring terminal from being influenced by external humid air, but also achieving the purpose of protecting external operators and preventing accidental electric shock during operation.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic diagram of the right side structure of the present invention;
fig. 4 is a schematic structural diagram of the wiring device of the present invention.
In the figure: 1. a housing; 11. an inner tank; 12. an iron core; 13. a primary winding; 14. a secondary winding;
2. a sealing device; 21. a sealing plate; 22. sealing the chute; 23. fixing the bolt;
3. a wiring device; 31. an outer protection device; 32. an inner connecting device; 311. fixing the sleeve; 312. a protective sleeve; 313. fastening sleeves; 321. a binding post; 322. a wire fastening bolt;
4. a heat sink; 41. heat dissipation holes; 42. and (4) insulating the filter screen.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in fig. 1-4, the utility model provides an iron-based amorphous nanocrystalline direct current component resistant current transformer, which comprises a housing 1 and a sealing device 2, wherein the sealing device 2 is movably mounted on the upper surface of the housing 1, wiring devices 3 are fixedly mounted on the front and rear surfaces of the housing 1, and heat dissipation devices 4 are arranged on the left and right surfaces of the housing 1.
In the embodiment, the casing 1 is used for installing internal facilities, the sealing device 2 is used for sealing the casing 1 and is connected with an external lead by the wiring device 3, and the heat dissipation device 4 is used for heat dissipation of the mutual inductor.
As shown in fig. 1-4, in the present embodiment, preferably, an inner groove 11 is formed inside the housing 1, an iron core 12 is fixedly installed inside the inner groove 11, a primary winding 13 is fixedly installed on the front end periphery of the iron core 12, a secondary winding 14 is fixedly installed on the rear end periphery of the iron core 12, the sealing device 2 includes a sealing chute 22, the sealing chute 22 is fixedly installed on the front and rear sides of the upper surface of the housing 1, a sealing plate 21 is movably installed inside the sealing chute 22, a fixing bolt 23 is connected to the right side of the upper surface of the sealing plate 21 in a threaded manner, the iron core 12 in the inner groove 11 cooperates with the primary winding 13 and the secondary winding 14 to complete mutual inductance of current, the number of turns of the primary winding 13 is small, the primary winding is strung in a circuit of current to be measured, the number of turns of the secondary winding 14 is large, the secondary winding is strung in the measuring instrument and the protection circuit, and the sealing plate 21 can slide in the sealing chute 22 left and right and is fixed by the fixing bolt 23.
Example 2
As shown in fig. 1 to 4, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the wiring device 3 includes an outer protection device 31, the outer protection device 31 is fixedly installed on the left and right sides of the front and rear surfaces of the housing 1, an inner connection device 32 is fixedly installed inside the outer protection device 31, the outer protection device 31 includes a fixed sleeve 311, the fixed sleeve 311 is fixedly installed on the left and right sides of the front and rear surfaces of the housing 1, a protective sleeve 312 is sleeved on the outer surface thread of the fixed sleeve 311, a fastening sleeve 313 is movably sleeved on the upper end inside the protective sleeve 312, the inner connection device 32 includes a wiring terminal 321, the wiring terminal 321 is fixedly installed inside the fixed sleeve 311, a wiring fastening bolt 322 is sleeved on the upper surface thread of the wiring terminal 321, the wiring terminal 321 is fixedly installed on the left and right sides of the front and rear surfaces of the housing 1, the front end wiring terminal 321 is fixedly connected to the left and right terminals of the secondary winding 14, the rear end wiring terminal 321 is fixedly connected to the left and right terminals of the primary winding 13, external wire passes protective sheath 312 and adapter sleeve 313, and fix on terminal 321 through wiring fastening bolt 322, connect protective sheath 312 spiral cover to fixed sleeve 311 simultaneously, make the wiring end not expose, including the wiring end protection, later press into protective sheath 312 with adapter sleeve 313 again, adapter sleeve 313 opening is less, can make the firm connection of adapter sleeve 313 on the wire, press into the in-process of protective sheath 312, both sealed whole outer protection device 31, can make the wire inseparabler with being connected of terminal 321 simultaneously.
Example 3
As shown in fig. 1 to 4, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the heat dissipation device 4 includes heat dissipation holes 41, the heat dissipation holes 41 are opened at the left and right sides of the housing 1, insulation filter screens 42 are fixedly installed at the inner sides of the heat dissipation holes 41 and at the left and right walls of the inner side of the housing 1, the heat dissipation device 4 can effectively dissipate heat inside through the heat dissipation holes 41, the insulation filter screens 42 are added in the heat dissipation holes 41, external dust is prevented from entering the inner groove 11 through the heat dissipation holes 41, influence is caused to normal work of the internal iron core 12 and the windings, the insulation filter screens 42 insulate and separate the internal windings and the iron core 12 from the external heat dissipation holes 41, and the windings and the iron core 12 are prevented from threatening the operators through the heat dissipation holes 41.
The working principle of the iron-based amorphous nanocrystalline DC component resistant current transformer is described in detail below.
As shown in fig. 1-4, the iron core 12 in the inner tank 11 cooperates with the primary winding 13 and the secondary winding 14 to complete mutual inductance of current, the number of turns of the primary winding 13 is small, the primary winding is connected in a circuit of current to be measured, the number of turns of the secondary winding 14 is large, the secondary winding is connected in series in a measuring instrument and a protection circuit, the sealing plate 21 can slide left and right in the sealing chute 22 and is fixed by the fixing bolt 23, the external lead passes through the protective sleeve 312 and the fastening sleeve 313 and is fixed on the binding post 321 by the wiring fastening bolt 322, meanwhile, the protective sleeve 312 is screwed on the fixing sleeve 311, so that the binding post is not exposed, the binding post is protected inside, and then the fastening sleeve 313 is pressed into the protective sleeve 312.
The present invention has been described in general terms in the foregoing, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto based on the present invention. Therefore, modifications or improvements are within the scope of the utility model without departing from the spirit of the inventive concept.
Claims (7)
1. The utility model provides an anti direct current component current transformer of iron-based amorphous nanocrystalline, includes shell (1) and sealing device (2), sealing device (2) movable mounting is in the upper surface of shell (1), its characterized in that: wiring devices (3) are fixedly arranged on the front surface and the rear surface of the shell (1), and heat dissipation devices (4) are arranged on the left surface and the right surface of the shell (1);
junction device (3) including outer protection device (31), outer protection device (31) fixed mounting is in the front and back surface left and right sides of shell (1), connecting device (32) in outer protection device (31) inside fixed mounting.
2. The iron-based amorphous nanocrystalline DC component resistant current transformer of claim 1, characterized in that: outer protection device (31) including fixed sleeve (311), fixed sleeve (311) fixed mounting is in the front and back surface left and right sides of shell (1), the surface screw thread of fixed sleeve (311) has cup jointed protective sheath (312), adapter sleeve (313) has been cup jointed in the activity of the inside upper end of protective sheath (312).
3. The iron-based amorphous nanocrystalline DC component resistant current transformer of claim 1, characterized in that: interior connecting device (32) is including terminal (321), terminal (321) fixed mounting is in the inside of fixed sleeve (311), wiring fastening bolt (322) have been cup jointed to the upper surface screw thread of terminal (321).
4. The iron-based amorphous nanocrystalline DC component resistant current transformer of claim 1, characterized in that: the heat dissipation device (4) comprises heat dissipation holes (41), the heat dissipation holes (41) are formed in the left side and the right side of the shell (1), and insulation filter screens (42) are fixedly arranged on the inner sides of the heat dissipation holes (41) and on the left wall and the right wall of the inner side of the shell (1).
5. The iron-based amorphous nanocrystalline DC component resistant current transformer of claim 1, characterized in that: an inner groove (11) is formed in the shell (1), an iron core (12) is fixedly mounted in the inner groove (11), a primary winding (13) is fixedly mounted on the periphery of the front end of the iron core (12), and a secondary winding (14) is fixedly mounted on the periphery of the rear end of the iron core (12).
6. The iron-based amorphous nanocrystalline DC component resistant current transformer of claim 1, characterized in that: the sealing device (2) comprises a sealing sliding groove (22), the sealing sliding groove (22) is fixedly arranged on the front side and the rear side of the upper surface of the shell (1), a sealing plate (21) is movably arranged in the sealing sliding groove (22), and a fixing bolt (23) is connected to the right side of the upper surface of the sealing plate (21) in a threaded mode.
7. The iron-based amorphous nanocrystalline DC component resistant current transformer of claim 3, characterized in that: the wiring terminal (321) is fixedly arranged on the left side and the right side of the front surface and the rear surface of the shell (1), the wiring terminal (321) is fixedly connected to the left wiring terminal and the right wiring terminal of the secondary winding (14), and the wiring terminal (321) is fixedly connected to the left wiring terminal and the right wiring terminal of the primary winding (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122786132.XU CN216250248U (en) | 2021-11-15 | 2021-11-15 | Iron-based amorphous nanocrystalline direct-current component resistant current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122786132.XU CN216250248U (en) | 2021-11-15 | 2021-11-15 | Iron-based amorphous nanocrystalline direct-current component resistant current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216250248U true CN216250248U (en) | 2022-04-08 |
Family
ID=80941103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122786132.XU Active CN216250248U (en) | 2021-11-15 | 2021-11-15 | Iron-based amorphous nanocrystalline direct-current component resistant current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216250248U (en) |
-
2021
- 2021-11-15 CN CN202122786132.XU patent/CN216250248U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR200445999Y1 (en) | Zero current transformor is united current transformor | |
| CN202230862U (en) | After-current transformer | |
| CN208094158U (en) | A kind of intelligent distribution box branch monitoring device | |
| CN216250248U (en) | Iron-based amorphous nanocrystalline direct-current component resistant current transformer | |
| CN207489639U (en) | A kind of low-loss power transformer | |
| CN211319890U (en) | Miniaturized outdoor three-phase anti-ferromagnetic resonance voltage transformer | |
| KR101751092B1 (en) | Battery charger having magnetic element housing for considering noise shielding and pcb wire | |
| CN212161457U (en) | High-reliability inductance assembly device | |
| CN208335970U (en) | A kind of transformer that fuse is conveniently replaceable | |
| CN106158332A (en) | Transformer with contact box | |
| KR200439071Y1 (en) | Fixation structure of zerophase current transformer | |
| CN112735767A (en) | Ultra-precise choke coil | |
| CN203617116U (en) | Electricity larceny prevention mutual inductor case | |
| JP4813318B2 (en) | Noise purification device and noise purification element | |
| CN208208545U (en) | A kind of mutual inductor with protective device | |
| CN209057092U (en) | A kind of epoxy-plastic packaging structure of linear motor Hall element | |
| CN207925291U (en) | A kind of ring main unit 10kV miniaturization threephase potential transformers | |
| CN207925288U (en) | A kind of quick response from short circuit current mutual inductor | |
| CN210925653U (en) | Current transformer who has fuse that facilitates use | |
| CN212990833U (en) | Transformer structure with strong short circuit resistance | |
| KR101303122B1 (en) | Self-diagnosis instrument transformer | |
| CN112259329B (en) | Transformer core grounding lead structure | |
| CN213149141U (en) | Direct current trial delivery instrument | |
| CN210467470U (en) | Power transformer terminal protection device | |
| CN208922828U (en) | A kind of novel ignition transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |