CN219393097U - Electronic current transformer - Google Patents
Electronic current transformer Download PDFInfo
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- CN219393097U CN219393097U CN202320308039.4U CN202320308039U CN219393097U CN 219393097 U CN219393097 U CN 219393097U CN 202320308039 U CN202320308039 U CN 202320308039U CN 219393097 U CN219393097 U CN 219393097U
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- heat dissipation
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- annular heat
- baffle
- wall
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Abstract
The utility model discloses an electronic current transformer, which is formed by installing a spliced shell through a fixed base, wherein the spliced shell is formed by splicing and fixing front and rear annular plates, an outer annular heat-dissipating baffle plate and an inner annular heat-dissipating baffle plate, the spliced shell is wholly sealed, and SF is filled in the spliced shell 6 Gas and its preparation methodFor insulation; the coil limiting fixing pieces are uniformly fixed on the outer ring surface of the inner cavity of the spliced shell, the inner side ends of the coil limiting fixing pieces are abutted against the Rogowski coil wound on the outer wall of the annular iron core, the positions of the Rogowski coil are effectively limited and fixed, shaking of the Rogowski coil during operation is avoided, and measurement errors are avoided; the outside annular heat dissipation baffle and the inside annular heat dissipation baffle of the splice housing are respectively used for heat dissipation of the outer annular surface and the inner annular surface of the splice housing, so that the heat dissipation performance of the splice housing is improved, and the tightness of the gap of the splice housing is ensured through rubber pad design.
Description
Technical Field
The utility model relates to the technical field of current transformers, in particular to an electronic current transformer.
Background
The current transformer principle is manufactured according to the electromagnetic induction principle, and the electronic transformer is free from the interference of magnetic saturation phenomenon and serious ferromagnetic resonance phenomenon, so that the electronic transformer is often used as a measuring tool.
At present, the coil of the electronic transformer in the prior art is simply wound outside the iron core, and the error is easily caused by shaking when the equipment operates, so that the design practicality is strong, the coil wound on the outer wall of the iron core can be effectively limited, and the electronic current transformer for avoiding the generation of measurement errors is very necessary.
Disclosure of Invention
The present utility model is directed to providing an electronic current transformer to solve the problems set forth in the background art.
In order to solve the technical problems, the utility model provides the following technical scheme: the electronic current transformer comprises a fixed base, wherein a splicing shell is fixedly assembled at the upper end of the fixed base, a gap of the splicing shell is closed, and SF is filled in the splicing shell 6 The gas, splice casing inner chamber is equipped with annular iron core, the outer wall of annular iron core has cup jointed the rogowski coil, splice casing inner chamber outer annular surface evenly admittedlyThe coil limiting fixing pieces are fixedly assembled, the number of the coil limiting fixing pieces is eight, each coil limiting fixing piece comprises an arc-shaped clamping plate, the inner ring surface of each arc-shaped clamping plate is propped against the outer wall of the Rogowski coil, springs are vertically and fixedly connected to the two ends of the outer ring surface of each arc-shaped clamping plate, and the outer side ends of the springs are fixedly connected to the outer ring surface of the inner cavity of the splicing shell.
According to the technical scheme, the splice shell comprises the annular plates which are distributed in parallel from front to back, the outer sides of the annular plates are inserted with the outer annular heat dissipation baffle plates, the inner sides of the annular plates are inserted with the inner annular heat dissipation baffle plates, the outer edges of the outer side surfaces of the annular plates are uniformly provided with round grooves, the middle parts of the bottom surfaces of the round grooves are connected with fixing bolts in a threaded mode, the tail ends of the fixing bolts are connected with the outer side annular heat dissipation baffle plates and the outer side end same side of the inner annular heat dissipation baffle plates in a threaded mode, and rubber pads are fixedly adhered to the outer side ends of the outer side annular heat dissipation baffle plates and the outer side end of the inner annular heat dissipation baffle plates.
According to the technical scheme, the outer annular heat dissipation baffle comprises an outer annular heat dissipation plate, first strip-shaped through holes are uniformly formed in the outer wall of the outer annular heat dissipation plate, and first heat dissipation fins are fixedly welded on the inner wall of the first strip-shaped through holes.
According to the technical scheme, the inner annular heat radiation baffle comprises an inner annular heat radiation plate, second strip-shaped through holes are uniformly formed in the outer wall of the inner annular heat radiation plate, and second heat radiation fins are fixedly welded on the inner wall of the second strip-shaped through holes.
According to the technical scheme, unable adjustment base includes the bottom plate, the installation through-hole has all been seted up to bottom plate upper surface four corners department, bottom plate upper surface middle part fixed mounting is equipped with the mount pad, splice housing fixed mounting is in the mount pad upper end.
Compared with the prior art, the utility model has the following beneficial effects:
(1) According to the utility model, the splice shell is arranged through the fixed base, the splice shell is formed by splicing and fixing the front annular plate, the rear annular plate, the outer annular heat dissipation baffle and the inner annular heat dissipation baffle, the splice shell is wholly sealed, and SF is filled in the splice shell 6 For gasesInsulating; the coil limiting fixing pieces are uniformly fixed on the outer ring surface of the inner cavity of the spliced shell, the inner side ends of the coil limiting fixing pieces are propped against the Rogowski coil wound on the outer wall of the annular iron core, the positions of the Rogowski coil are effectively limited and fixed, shaking of the Rogowski coil during working is avoided, and measurement errors are avoided.
(2) According to the utility model, the outer annular heat dissipation baffle and the inner annular heat dissipation baffle of the spliced shell are respectively used for heat dissipation of the outer annular surface and the inner annular surface of the spliced shell, so that the heat dissipation performance of the spliced shell is improved, and the tightness of a gap of the spliced shell is ensured through rubber pad design.
(3) According to the utility model, the first radiating fins of the outer annular radiating baffle are used for transferring heat, and radiating heat to the outside through the outer annular radiating plate.
(4) The second radiating fins of the inner annular radiating baffle are used for transferring heat, and radiate heat to the outside through the inner annular radiating plate.
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 the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
FIG. 1 is a schematic diagram of the front view of the present utility model;
FIG. 2 is a schematic view of a coil spacing fixture of the present utility model;
fig. 3 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.
In the figure: the device comprises a 1-fixed base, a 11-bottom plate, a 12-mounting through hole, a 13-mounting seat, a 2-spliced shell, a 21-annular plate, a 22-outer annular heat dissipation plate, a 221-outer annular heat dissipation plate, a 222-first strip-shaped through hole, a 223-first heat dissipation fin, a 23-inner annular heat dissipation plate, a 231-inner annular heat dissipation plate, a 232-second strip-shaped through hole, a 233-second heat dissipation fin, a 24-rubber pad, a 25-round groove, a 26-fixed bolt, a 3-annular iron core, a 4-Rogowski coil, a 5-coil limiting fixing piece, a 51-spring and a 52-arc clamping plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
Referring to fig. 1-3, the present utility model provides the following technical solutions: the electronic current transformer comprises a fixed base 1, wherein a splicing shell 2 is fixedly assembled at the upper end of the fixed base 1, a gap of the splicing shell 2 is closed, and SF is filled in the splicing shell 2 6 The inner cavity of the spliced shell 2 is provided with an annular iron core 3, the outer wall of the annular iron core 3 is sleeved with a Rogowski coil 4, the outer annular surface of the inner cavity of the spliced shell 2 is uniformly and fixedly provided with coil limiting fixing pieces 5, eight coil limiting fixing pieces 5 are arranged, each coil limiting fixing piece 5 comprises an arc clamping plate 52, the inner annular surface of each arc clamping plate 52 is abutted against the outer wall of the corresponding Rogowski coil 4, two ends of the outer annular surface of each arc clamping plate 52 are vertically and fixedly connected with springs 51, and the outer side ends of the springs 51 are fixedly connected to the outer annular surface of the inner cavity of the spliced shell 2.
Install concatenation casing 2 through unable adjustment base 1, concatenation casing 2 is fixed through front and back annular board 21, outside annular heat dissipation baffle 22 and inboard annular heat dissipation baffle 23 concatenation and is formed, and concatenation casing 2 is whole airtight, and SF is filled to its inside 6 The gas is used for insulation; the coil limiting fixing piece 5 is uniformly fixed on the outer ring surface of the inner cavity of the spliced shell 2, the inner side end of the coil limiting fixing piece 5 is propped against the Rogowski coil 4 wound on the outer wall of the annular iron core 3, the position of the Rogowski coil 4 is effectively limited and fixed, shaking of the Rogowski coil during operation is avoided, and measurement errors are avoided.
Specifically, the splice housing 2 comprises annular plates 21 which are distributed in parallel from front to back, an outer annular heat dissipation baffle 22 is inserted between inner side surfaces of the front annular plate 21 and an inner annular heat dissipation baffle 23 is inserted between the inner side surfaces of the front annular plate 21 and the rear annular plate 21, circular grooves 25 are uniformly formed in inner and outer edges of the outer side surfaces of the annular plates 21, fixing bolts 26 are screwed in the middle of the bottom surfaces of the circular grooves 25, tail ends of the fixing bolts 26 are screwed on the same side of outer side ends of the outer annular heat dissipation baffle 22 and the inner annular heat dissipation baffle 23, and rubber pads 24 are fixedly adhered to the outer side ends of the outer annular heat dissipation baffle 22 and the inner annular heat dissipation baffle 23.
In this embodiment, the outer annular heat dissipation baffle 22 and the inner annular heat dissipation baffle 23 are respectively used for heat dissipation of the outer annular surface and the inner annular surface of the spliced shell 2, so that heat dissipation performance of the spliced shell is improved, and tightness of the gap of the spliced shell 2 is ensured through the design of the rubber pad 24.
Specifically, the outer annular heat dissipation baffle 22 includes an outer annular heat dissipation plate 221, the outer wall of the outer annular heat dissipation plate 221 is uniformly provided with a first strip-shaped through hole 222, and the inner wall of the first strip-shaped through hole 222 is welded and fixed with a first heat dissipation fin 223; the first heat dissipation fins 223 serve to transfer heat, and dissipate the heat to the outside through the outer annular heat dissipation plate 221.
Specifically, the inner annular heat dissipation plate 23 includes an inner annular heat dissipation plate 231, second strip-shaped through holes 232 are uniformly formed on the outer wall of the inner annular heat dissipation plate 231, and second heat dissipation fins 233 are welded and fixed on the inner wall of the second strip-shaped through holes 232; the second heat dissipation fins 233 serve to transfer heat, and dissipate the heat to the outside through the inner annular heat dissipation plate 231.
Specifically, the fixed base 1 comprises a bottom plate 11, mounting through holes 12 are formed in four corners of the upper surface of the bottom plate 11, a mounting seat 13 is fixedly assembled in the middle of the upper surface of the bottom plate 11, and the splicing shell 2 is fixedly assembled at the upper end of the mounting seat 13; the device is convenient to install and fix through the arrangement of the fixed base 1.
Working principle:
the utility model installs the splice shell 2 through the fixed base 1, the splice shell 2 is formed by splicing and fixing the front and back annular plates 21, the outer annular heat dissipation baffle 22 and the inner annular heat dissipation baffle 23, the splice shell 2 is wholly sealed, and SF is filled in the splice shell 6 The gas is used for insulation; the coil limiting fixing pieces 5 are uniformly fixed on the outer ring surface of the inner cavity of the spliced shell 2, the inner side ends of the coil limiting fixing pieces 5 are abutted against the Rogowski coil 4 wound on the outer wall of the annular iron core 3, the positions of the Rogowski coil 4 are effectively limited and fixed, shaking is avoided during operation, and measurement errors are avoided;
the outer annular heat dissipation baffle 22 and the inner annular heat dissipation baffle 23 of the spliced shell 2 are respectively used for dissipating heat of the outer annular surface and the inner annular surface of the spliced shell 2, so that the heat dissipation performance of the spliced shell is improved, and the tightness of a gap of the spliced shell 2 is ensured through the design of the rubber pad 24; the first heat dissipation fins 223 of the outer annular heat dissipation plate 22 are used for heat transfer, and dissipate heat to the outside through the outer annular heat dissipation plate 221; the second heat dissipation fins 233 of the inner annular heat dissipation plate 23 serve to transfer heat, and dissipate the heat to the outside through the inner annular heat dissipation plate 231.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (5)
1. Electronic current transformer, its characterized in that: including unable adjustment base (1), unable adjustment base (1)'s upper end fixed mounting has concatenation casing (2), the gap department of concatenation casing (2) is airtight, and concatenation casing (2) intussuseption is filled with SF 6 Gas, the splice caseThe utility model discloses a novel electric power generation device, including body (2) inner chamber is equipped with annular iron core (3), annular iron core (3) outer wall has cup jointed rogowski coil (4), splice casing (2) inner chamber outer loop face evenly fixed be equipped with coil spacing mounting (5), the quantity of coil spacing mounting (5) has eight, coil spacing mounting (5) include arc splint (52), and arc splint (52) inner ring face supports and leans on rogowski coil (4) outer wall, arc splint (52) outer loop face both ends perpendicular fixedly connected with spring (51), and spring (51) outer side end fixed connection is on splice casing (2) inner chamber outer ring face.
2. The electronic current transformer of claim 1, wherein: the splice housing (2) comprises annular plates (21) which are distributed in parallel from front to back, an outer annular heat dissipation baffle (22) is inserted between inner side surfaces of the annular plates (21) from front to back, an inner annular heat dissipation baffle (23) is inserted between the inner side surfaces of the annular plates (21) from front to back, circular grooves (25) are uniformly formed in inner and outer edges of the outer side surfaces of the annular plates (21), fixing bolts (26) are screwed in the middle of the bottom surfaces of the circular grooves (25), the tail ends of the fixing bolts (26) are screwed on the same sides of the outer side ends of the outer annular heat dissipation baffle (22) and the inner side annular heat dissipation baffle (23), and rubber pads (24) are adhered and fixed at the outer side ends of the outer annular heat dissipation baffle (22) and the inner annular heat dissipation baffle (23).
3. The electronic current transformer of claim 2, wherein: the outer annular heat dissipation baffle (22) comprises an outer annular heat dissipation plate (221), first strip-shaped through holes (222) are uniformly formed in the outer wall of the outer annular heat dissipation plate (221), and first heat dissipation fins (223) are fixedly welded on the inner wall of the first strip-shaped through holes (222).
4. The electronic current transformer of claim 2, wherein: the inner annular heat dissipation baffle (23) comprises an inner annular heat dissipation plate (231), second strip-shaped through holes (232) are uniformly formed in the outer wall of the inner annular heat dissipation plate (231), and second heat dissipation fins (233) are fixedly welded on the inner wall of the second strip-shaped through holes (232).
5. The electronic current transformer of claim 1, wherein: the fixing base (1) comprises a bottom plate (11), mounting through holes (12) are formed in four corners of the upper surface of the bottom plate (11), a mounting seat (13) is fixedly arranged in the middle of the upper surface of the bottom plate (11), and the splicing shell (2) is fixedly arranged at the upper end of the mounting seat (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320308039.4U CN219393097U (en) | 2023-02-24 | 2023-02-24 | Electronic current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320308039.4U CN219393097U (en) | 2023-02-24 | 2023-02-24 | Electronic current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219393097U true CN219393097U (en) | 2023-07-21 |
Family
ID=87195578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320308039.4U Active CN219393097U (en) | 2023-02-24 | 2023-02-24 | Electronic current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219393097U (en) |
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2023
- 2023-02-24 CN CN202320308039.4U patent/CN219393097U/en active Active
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