CN220691824U - Three-phase integrated low-voltage current transformer - Google Patents
Three-phase integrated low-voltage current transformer Download PDFInfo
- Publication number
- CN220691824U CN220691824U CN202321452616.3U CN202321452616U CN220691824U CN 220691824 U CN220691824 U CN 220691824U CN 202321452616 U CN202321452616 U CN 202321452616U CN 220691824 U CN220691824 U CN 220691824U
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- current transformer
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- voltage current
- transformer body
- box
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 21
- 210000005069 ears Anatomy 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 description 4
- 230000002146 bilateral effect Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of electric accessories, in particular to a three-phase integrated low-voltage current transformer which comprises a three-phase integrated low-voltage current transformer body, wherein a junction box is arranged at the top of the low-voltage current transformer body, and a heat dissipation box is arranged at the bottom of the low-voltage current transformer body; the low-voltage current transformer body comprises coil holes for installing three groups of coils, a fixing hole is formed in the installation side seat, and a heat dissipation port communicated with the inside is formed in the center of the bottom surface of the low-voltage current transformer body. According to the utility model, through the radiating opening formed in the bottom of the low-voltage current transformer body and the radiating fan arranged in the radiating box, the air flow in the low-voltage current transformer body can be improved, the radiating effect is improved, the service life is prolonged, and through the symmetrically arranged L-shaped or Z-shaped mounting side seats on the two sides of the low-voltage current transformer body, the high-voltage current transformer body can be heightened, the radiating effect is improved, and the fixing holes formed in the mounting side seats are convenient to mount or dismount.
Description
Technical Field
The utility model relates to the technical field of electric accessories, in particular to a three-phase integrated low-voltage current transformer.
Background
The three-phase integrated current transformer is also called a combined current transformer and a low-voltage current transformer. The three-phase integrated current transformer is used as a current signal acquisition element, can be generally matched with products such as a multi-loop current monitoring device (AMC 16), a PZ300, a molded case circuit breaker and the like, saves installation space, reduces wiring vexation lock, is convenient for users to use, and effectively reduces cost. The three-phase integrated current transformer at present has poor heat dissipation effect because the three coils synchronously work, and long-term operation can cause certain damage to the current transformer, seriously affects the service life and increases the maintenance cost.
Disclosure of Invention
The utility model aims to provide a three-phase integrated current transformer, which solves the problems that the three-phase integrated current transformer is poor in heat dissipation effect, long-term operation can cause certain damage to the current transformer, seriously affects the service life and increases the maintenance cost because the three coils are synchronously operated in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides an integrative low current transformer of three-phase, includes integrative low current transformer body of three-phase, its characterized in that: the low-voltage current transformer body is of a hollow structure, a junction box is arranged at the top of the low-voltage current transformer body, and a heat dissipation box is arranged at the bottom of the low-voltage current transformer body;
the low-voltage current transformer body comprises coil holes for installing three groups of coils, installation side seats with L-shaped or Z-shaped cross sections are symmetrically installed at the bottoms of the two sides of the low-voltage current transformer body, fixing holes are formed in the installation side seats, and a heat dissipation port communicated with the inside is formed in the center of the bottom surface of the low-voltage current transformer body;
six groups of wire plugging holes are formed in the outer wall of one side of the junction box, and the top threads of the junction box are provided with wire locking bolts which are the same in number and corresponding in position to the wire plugging holes;
the bottom of the radiating box is provided with a dust screen, radiating fans parallel to the bottom surface are installed in the radiating box, and fixed footstands are symmetrically installed at the tops of two sides of the radiating box.
Preferably, a plurality of heat dissipation through holes communicated with the inside are symmetrically formed in two sides of the top of the low-voltage current transformer body.
Preferably, the outer wall surface of the low-voltage current transformer body is provided with labels which are the same in number and corresponding in position to the coil holes.
Preferably, mounting side ears are symmetrically arranged at the bottoms of two sides of the junction box, and the mounting side ears are connected to the top of the low-voltage current transformer body through mounting screws.
Preferably, the bottom of the junction box is provided with conductive posts which are the same as the lockwire bolts in number and corresponding to the positions.
Preferably, a reset spring is arranged on the top surface of the conductive column, and a conductive pressing sheet is arranged on the reset spring.
Preferably, the top opening of the heat dissipation box is the same as the caliber of the heat dissipation opening, and the fixed top seat is connected to the bottom of the low-voltage current transformer body through a fixed screw.
Compared with the prior art, the utility model has the beneficial effects that:
1. in this integrative low-voltage current transformer of three-phase, through the thermovent of seting up in the bottom of low-voltage current transformer body and the radiator fan of installation in the radiating box, can improve the inside air flow of low-voltage current transformer body, improve the radiating effect, increase of service life, through set up the installation side seat that is L or Z type at low-voltage current transformer body bilateral symmetry, can increase the high-pressure current transformer body, improve the radiating effect, and the fixed orifices of seting up on the installation side seat, install or dismantle conveniently.
2. In the three-phase integrated low-voltage current transformer, the outer wall surface of the low-voltage current transformer body is provided with the labels which are the same with the coil holes in number and correspond to the coil holes in position, so that the identification of electricians is facilitated.
3. In this integrative low current transformer of three-phase, the both sides bottom symmetry of terminal box is provided with the installation side ear, and the installation side ear passes through installation screwed connection in the top of low current transformer body, conveniently installs or dismantle, is convenient for later stage maintenance and inspection.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain, however, the utility model.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
fig. 3 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.
Meaning of each reference numeral in the drawings:
10. a low-voltage current transformer body; 11. a coil hole; 12. mounting a side seat; 13. a fixing hole; 14. a heat radiation port; 15. a heat dissipation through hole; 16. a label;
20. a junction box; 21. a plug wire hole; 22. a lockwire bolt; 23. mounting side ears; 24. a conductive post; 25. a return spring; 26. conducting tabletting;
30. a heat dissipation box; 31. a heat radiation fan; 32. a dust screen; 33. and fixing the top seat.
Detailed Description
The following description of embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "vertical", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
1-3, the three-phase integrated low-voltage current transformer comprises a three-phase integrated low-voltage current transformer body 10, wherein the inside of the low-voltage current transformer body 10 is of a hollow structure, a junction box 20 is arranged at the top of the low-voltage current transformer body 10, and a heat dissipation box 30 is arranged at the bottom of the low-voltage current transformer body 10; the low-voltage current transformer body 10 comprises coil holes 11 for installing three groups of coils, installation side seats 12 with L-shaped or Z-shaped cross sections are symmetrically installed at the bottoms of two sides of the low-voltage current transformer body 10, fixing holes 13 are formed in the installation side seats 12, and a heat dissipation port 14 communicated with the inside is formed in the center of the bottom surface of the low-voltage current transformer body 10; six groups of wire inserting holes 21 are formed in the outer wall of one side of the junction box 20, and the top threads of the junction box 20 are provided with wire locking bolts 22 which are the same in number and corresponding in position to the wire inserting holes 21; the bottom of radiating box 30 is provided with dust screen 32, install the radiator fan 31 parallel with the bottom surface in the radiating box 30, fixed footstock 33 is installed to the both sides top symmetry of radiating box 30, through the thermovent 14 of seting up in the bottom of low-voltage current transformer body 10 and the radiator fan 31 of installing in radiating box 30, can improve the inside air flow of low-voltage current transformer body 10, improve the radiating effect, increase of service life, through set up the installation side seat 12 that is L or Z in low-voltage current transformer body 10 bilateral symmetry, can increase high with low-voltage current transformer body 10, improve the radiating effect, and the fixed orifices 13 of seting up on the installation side seat 12, install or dismantle conveniently.
Further, a plurality of heat dissipation through holes 15 communicated with the inside are symmetrically formed in the two sides of the top of the low-voltage current transformer body 10, and the heat dissipation effect is improved.
The labels 16 which are the same as the coil holes 11 in number and correspond to each other in position are arranged on the outer wall surface of the low-voltage current transformer body 10, so that the identification of electricians is facilitated.
Specifically, the bottom of both sides of the junction box 20 is symmetrically provided with mounting side ears 23, and the mounting side ears 23 are connected to the top of the low-voltage transformer body 10 through mounting screws, so that the junction box is convenient to mount or dismount, and convenient to maintain and check in the later period.
In addition, the bottom of terminal box 20 is installed with the same, the corresponding conductive post 24 of position of lockwire bolt 22 quantity, and reset spring 25 is installed to the top surface of conductive post 24, installs conductive preforming 26 on the reset spring 25, through the cooperation of reset spring 25, conductive preforming 26 and lockwire bolt 22 that set up, can carry out the centre gripping with the wire fixedly fast, improves stability.
It should be noted that, the top opening of the heat dissipation box 30 has the same caliber as the heat dissipation opening 14, and the fixed top seat 33 is connected to the bottom of the low-voltage transformer body 10 through a fixing screw, so that the installation or the disassembly is convenient, and the later maintenance and the inspection are convenient.
The working principle of the three-phase integrated current transformer is as follows: during installation, an operator firstly installs the junction box 20 at the top of the low-voltage current transformer body 10, the installation side lugs 23 at two sides are connected to the top of the low-voltage current transformer body 10 through installation screws, then the wires are sequentially connected into the wire insertion holes 21 and fixed through the wire locking bolts 22, and the installation side seat 12 is installed in the distribution box through the fixing holes 13 through the fixing bolts; when in use, the heat dissipation fan 31 is connected with an external power supply, and the heat dissipation fan 31 in the heat dissipation box 30 dissipates heat in the low-voltage transformer body 10.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides an integrative low current transformer of three-phase, includes integrative low current transformer body (10) of three-phase, its characterized in that: the low-voltage current transformer body (10) is of a hollow structure, a junction box (20) is arranged at the top of the low-voltage current transformer body (10), and a heat dissipation box (30) is arranged at the bottom of the low-voltage current transformer body (10);
the low-voltage current transformer body (10) comprises coil holes (11) for installing three groups of coils, installation side seats (12) with L-shaped or Z-shaped cross sections are symmetrically installed at the bottoms of two sides of the low-voltage current transformer body (10), fixing holes (13) are formed in the installation side seats (12), and a heat dissipation port (14) communicated with the inside is formed in the center of the bottom surface of the low-voltage current transformer body (10);
six groups of wire inserting holes (21) are formed in the outer wall of one side of the junction box (20), and wire locking bolts (22) which are the same in number and corresponding in position to the wire inserting holes (21) are arranged on the top threads of the junction box (20);
the bottom of radiating box (30) is provided with dust screen (32), install radiator fan (31) parallel with the bottom surface in radiating box (30), fixed footstock (33) are installed at the both sides top symmetry of radiating box (30).
2. The three-phase integrated current transformer of claim 1, wherein: a plurality of heat dissipation through holes (15) communicated with the inside are symmetrically formed in the two sides of the top of the low-voltage current transformer body (10).
3. The three-phase integrated current transformer of claim 1, wherein: the outer wall surface of the low-voltage current transformer body (10) is provided with labels (16) which are the same in number and corresponding in position to the coil holes (11).
4. The three-phase integrated current transformer of claim 1, wherein: the two sides of the junction box (20) are symmetrically provided with mounting side ears (23), and the mounting side ears (23) are connected to the top of the low-voltage current transformer body (10) through mounting screws.
5. The three-phase integrated current transformer of claim 1, wherein: the bottom of the junction box (20) is provided with conductive posts (24) which are the same in number and corresponding in position to the lockwire bolts (22).
6. The three-phase integrated current transformer of claim 5, wherein: the top surface of electrically conductive post (24) is installed reset spring (25), install electrically conductive preforming (26) on reset spring (25).
7. The three-phase integrated current transformer of claim 1, wherein: the top surface opening of the radiating box (30) is the same as the caliber of the radiating opening (14), and the fixed top seat (33) is connected to the bottom of the low-voltage current transformer body (10) through a fixed screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321452616.3U CN220691824U (en) | 2023-06-08 | 2023-06-08 | Three-phase integrated low-voltage current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321452616.3U CN220691824U (en) | 2023-06-08 | 2023-06-08 | Three-phase integrated low-voltage current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220691824U true CN220691824U (en) | 2024-03-29 |
Family
ID=90411700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321452616.3U Active CN220691824U (en) | 2023-06-08 | 2023-06-08 | Three-phase integrated low-voltage current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220691824U (en) |
-
2023
- 2023-06-08 CN CN202321452616.3U patent/CN220691824U/en active Active
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