CN201984936U - Current transformer and silicon sheet structure thereof - Google Patents
Current transformer and silicon sheet structure thereof Download PDFInfo
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- CN201984936U CN201984936U CN2011200549218U CN201120054921U CN201984936U CN 201984936 U CN201984936 U CN 201984936U CN 2011200549218 U CN2011200549218 U CN 2011200549218U CN 201120054921 U CN201120054921 U CN 201120054921U CN 201984936 U CN201984936 U CN 201984936U
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Abstract
The utility model discloses a current transformer and a silicon sheet structure thereof. The silicon sheet structure adopts a sheet body formed by a first straight plate, a second straight plate, and a third straight plate, wherein the inner edge of the first straight plate gradually inclines outwards; the outer edge of the third straight plate gradually inclines inwards; a first concave part is arranged at the inner end of the inner edge of the third straight plate and a second concave part is arranged at the tail end of the inner edge of the third straight plate; and a first convex part is arranged at the tail end of the outer edge of the third straight plate and a second convex part is arranged at the inner end of the outer edge of the third straight plate. When the silicon sheet structure is utilized to manufacture a current transformer, the matching between the first convex part and the first concave part, as well as between the second convex part and the second concave part, of two silicon sheets is utilized, and a plurality of silicon sheets are laminated and tightly prop against the interior of an upper reel and a lower reel to form the iron core of the current transformer. By adopting the structure, the use of rivets is cancelled, and defects caused by requirement on aligning through holes of the silicon sheets during assembly process are avoided. In addition, the assembly is easy and the deformation probability is low, so as to greatly improve the assembly efficiency of the current transformer.
Description
Technical field
The utility model relates to a kind of current transformer, particularly relates to a kind of silicon steel structure and current transformer thereof of current transformer.
Background technology
Current transformer is widely used in electric power system; usually in order to guarantee the safety and economic operation of electric power system; must carry out monitoring and measuring to the ruuning situation of power equipment; but general measurement and protective device can not directly insert high-tension apparatus No. one time; and the big electric current scaling transformation of primary system need be become little electric current, to supply with measuring instrument and protective device.The current transformer equipment that comes to this, it is to utilize electromagnetic induction principle to change the device of current magnitude.Current transformer normally is made up of the iron core and the winding of closure, iron core generally is to be made by many silicon steel sheets, Fig. 1, Fig. 2 are the structural representation of the silicon steel sheet of the iron core that is used for making current transformer in the prior art, this silicon steel sheet 10 ' be a thin slice body, thinner thickness, shape then is the L type, that is, and and by the vertical one of two straight sheets (straight sheet 11 ', the straight sheet 12 ') formation of joining.Iron core is formed by multi-disc silicon steel sheet 10 ' stack on thickness direction back, two silicon steel sheets 10 ' can surround a shaped as frame, promptly, with a slice silicon steel sheet 10 ' just put, with be docked at behind another sheet silicon steel sheet 10 ' Rotate 180 degree the silicon steel sheet 10 just put ' the top, like this, just make two silicon steel sheets 10 ' surround sub-assembly of a bite word shape, the sub-assembly of a plurality of square shape shapes stacks the iron core that the back just can form a closure at thickness direction.When making iron core, before this with some silicon steel sheets 10 ' one of them straight sheet on such as straight sheet 11 ' be inserted in drum stand, then with other silicon steel sheets 10 ' straight sheet 12 ' insertion drum stand and with the silicon steel sheet 10 that has been inserted in ' on thickness direction, stack, and adopt the silicon steel sheet 10 of straight sheet 12 ' insertion ' with the silicon steel sheet 10 that adopts straight sheet 11 ' be inserted in ' be separately, through hole 13 that at last will be by silicon steel sheet ' utilize rivet with the rivet clasp of each silicon steel sheet 10 ' on thickness direction together, like this, just can make two drum stands all be loaded in the closed iron core, form current transformer.But this employing rivet passes the mode that each through hole riveted joint fixes, and exists following drawback: the one, and, the through hole 13 of each stacked silicon steel sheet ' be difficult for alignment has caused difficult assembling; The 2nd,, with two silicon steel sheets 10 of one deck ' the handing-over position all outside drum stand, easy deformation; The 3rd, owing to will adopt rivet, caused inefficiency.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art, a kind of silicon steel structure and current transformer thereof of current transformer are provided, by improvement to silicon steel structure, cancelled the employing rivet, needing in the assembling process to have avoided the drawback that through hole brought of alignment silicon steel sheet, have easy, the on-deformable characteristics of assembling, thereby improved the efficiency of assembling of current transformer greatly.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of silicon steel sheet of current transformer, it is a thin slice body, this thin slice body is made of the first straight sheet, the second straight sheet and the 3rd straight sheet, join for vertical one between the first straight sheet and the second straight sheet, join for vertical one between the second straight sheet and the 3rd straight sheet, and the first straight sheet and the 3rd straight sheet parallel and are in the same side of the second straight sheet; The outer ledge of this first straight sheet and the second straight sheet are perpendicular, and the inside edge of this first straight sheet is the direction shelve laterally; The inside edge of the 3rd straight sheet and the second straight sheet are perpendicular, and the outer ledge of the 3rd straight sheet is the direction shelve to the inside, and are made as to coincide with the inside edge of the 3rd straight sheet of Rotate 180 degree and paste mutually; The inner end of the inside edge of the 3rd straight sheet is provided with first recess, and the end of the outer ledge of the 3rd straight sheet is provided with first protuberance that can coincide and cooperate with first recess of the first straight sheet of Rotate 180 degree; The end of the inside edge of the first straight sheet is provided with second recess, and the inner end of the outer ledge of the 3rd straight sheet is provided with second protuberance that can coincide and cooperate with second recess of the first straight sheet of Rotate 180 degree.
The recess direction of described first recess is along the incline direction of the inside edge of the first straight sheet, described first protuberance protrude out the incline direction of direction along the outer ledge of the 3rd straight sheet.
The incline direction of the inside edge of the recess direction of described second recess and the first straight sheet is perpendicular, and the incline direction of the outer ledge that protrudes out direction and the 3rd straight sheet of described second protuberance is perpendicular.
The recess of described second recess is an arc, and described second protuberance is an arc.
A kind of current transformer based on above-mentioned silicon steel sheet comprises drum stand, down drum stand and multi-disc are stacked and be tight against silicon steel sheet assembly in upper and lower drum stand; Every silicon steel sheet assembly is made up of two silicon steel sheets respectively, first straight sheet of one of them silicon steel sheet and the 3rd straight sheet are inserted by a side respectively and go up in drum stand and the following drum stand, and first straight sheet of another silicon steel sheet wherein and the 3rd straight sheet are respectively by in drum stand and the last drum stand under the opposite side insertion; In last drum stand, first protuberance of the 3rd straight sheet of described another silicon steel sheet is plugged in first recess of the first straight sheet of a described silicon steel sheet, and second protuberance of the 3rd straight sheet of described another silicon steel sheet snaps onto in second recess of the first straight sheet of a described silicon steel sheet; In following drum stand, first protuberance of the 3rd straight sheet of a described silicon steel sheet is plugged in first recess of the first straight sheet of described another silicon steel sheet, and second protuberance of the 3rd straight sheet of a described silicon steel sheet snaps onto in second recess of the first straight sheet of described another silicon steel sheet.
The silicon steel structure of a kind of current transformer of the present utility model and current transformer thereof, on silicon steel structure, there is not punching, with two silicon steel sheets when being connected into the shaped as frame of a closure, be utilized first protuberance between two silicon steel sheets to cooperate with grafting between first recess and second protuberance and second recess between be fastened and realize, and utilize stacked and the mode in upper and lower drum stand of being tight against of multi-disc to form the iron core of current transformer.
The beneficial effects of the utility model are, owing to adopted a thin slice body of forming by the first straight sheet, the second straight sheet and the 3rd straight sheet to constitute silicon steel structure, and join for vertical one between the first straight sheet and the second straight sheet, join for vertical one between the second straight sheet and the 3rd straight sheet, and the first straight sheet and the 3rd straight sheet parallel and are in the same side of the second straight sheet; The outer ledge of this first straight sheet and the second straight sheet are perpendicular, and the inside edge of this first straight sheet is the direction shelve laterally; The inside edge of this second straight sheet and the second straight sheet are perpendicular, and the outer ledge of this second straight sheet is the direction shelve to the inside, and are made as to coincide with the inside edge of the first straight sheet of Rotate 180 degree and paste mutually; The inner end of the inside edge of the first straight sheet is provided with first recess, and the end of the outer ledge of the second straight sheet is provided with first protuberance that can coincide and cooperate with first recess of the first straight sheet of Rotate 180 degree; The end of the inside edge of the first straight sheet is provided with second recess, and the inner end of the outer ledge of the second straight sheet is provided with second protuberance that can coincide and cooperate with second recess of the first straight sheet of Rotate 180 degree.When utilizing this silicon steel structure to make current transformer, be utilize first protuberance between two silicon steel sheets to cooperate with grafting between first recess and second protuberance and second recess between the closure of the silicon steel structure realized of being fastened, and utilize stacked and the mode in upper and lower drum stand of being tight against of multi-disc to form the iron core of current transformer.This structure has been cancelled the employing rivet, needing in the assembling process to have avoided the drawback that through hole brought of alignment silicon steel sheet, has easy, the on-deformable characteristics of assembling, thereby has improved the efficiency of assembling of current transformer greatly.
Below in conjunction with drawings and Examples the utility model is described in further detail; But the silicon steel structure and the current transformer thereof of a kind of current transformer of the present utility model are not limited to embodiment.
Description of drawings
Fig. 1 is the schematic diagram of the silicon steel structure of prior art;
Fig. 2 is the schematic diagram of the silicon steel structure of prior art at thickness direction;
Fig. 3 is the schematic diagram of silicon steel structure of the present utility model;
Fig. 4 is the schematic diagram of silicon steel structure of the present utility model at thickness direction;
Fig. 5 is the A portion enlarged diagram among Fig. 3;
Fig. 6 is the B portion enlarged diagram among Fig. 3;
Fig. 7 is the front view of current transformer of the present utility model;
Fig. 8 is the left view of current transformer of the present utility model;
Fig. 9 is the vertical view of current transformer of the present utility model;
Figure 10 is the cutaway view along C-C line among Fig. 9;
Figure 11 is the D structure schematic diagram of current transformer of the present utility model.
Embodiment
Embodiment, extremely shown in Figure 6 referring to Fig. 3, the silicon steel sheet of a kind of current transformer of the present utility model, it is a thin slice body 10, this thin slice body is made of first straight sheet 11, the second straight sheet 12 and the 3rd straight sheet 13, join for vertical one between the first straight sheet 11 and the second straight sheet 12, join for vertical one between the second straight sheet 12 and the 3rd straight sheet 13, and the first straight sheet 11 and the 3rd straight sheet 13 parallel and be in the same side of the second straight sheet 12; The outer ledge 111 of this first straight sheet 11 and the second straight sheet 12 are perpendicular, and the inside edge 112 of this first straight sheet is the direction shelve laterally; The inside edge 131 of the 3rd straight sheet 13 and the second straight sheet 12 are perpendicular, and the outer ledge 132 of the 3rd straight sheet is the direction shelve to the inside, and are made as to coincide with the inside edge 112 of the first straight sheet of Rotate 180 degree and paste mutually; The end that the inner end of the inside edge of the first straight sheet 11 is provided with the outer ledge of first recess, 113, the three straight sheets is provided with first protuberance 133 that can coincide and cooperate with first recess of the first straight sheet of Rotate 180 degree; The inner end that the end of the inside edge of the first straight sheet is provided with the outer ledge of second recess, 114, the three straight sheets is provided with second protuberance 134 that can coincide and cooperate with second recess of the first straight sheet of Rotate 180 degree.
The recess direction of described first recess 113 is along the incline direction of the inside edge of the first straight sheet, described first protuberance 133 protrude out the incline direction of direction along the outer ledge of the 3rd straight sheet.
The incline direction of the inside edge of the recess direction of described second recess 114 and the first straight sheet is perpendicular, and the incline direction of the outer ledge that protrudes out direction and the 3rd straight sheet of described second protuberance 134 is perpendicular.
The recess of described second recess 114 is an arc, and described second protuberance 134 is an arc.
To shown in Figure 11, a kind of current transformer based on above-mentioned silicon steel sheet of the present utility model comprises that drum stand 21, time drum stand 22 and multi-disc are stacked and is tight against silicon steel sheet assembly 30 in upper and lower drum stand referring to Fig. 7; Every silicon steel sheet assembly 30 is made up of two above-mentioned silicon steel sheets 31,32 respectively, first straight sheet 11 of one of them silicon steel sheet 31 and the 3rd straight sheet 13 are inserted by a side respectively and go up in drum stand 21 and the following drum stand 22, promptly, the first straight sheet 11 inserts in the last drum stand 21, and the 3rd straight sheet 13 inserts in the following drum stand 22; In drum stand 22 and the last drum stand 21, that is, in the drum stand 22, the 3rd straight sheet 13 inserts to be gone up in the drum stand 21 under the first straight sheet 11 inserted under first straight sheet 11 of another silicon steel sheet 32 wherein and the 3rd straight sheet 13 were inserted by opposite side respectively; In last drum stand 21, first protuberance 133 of the 3rd straight sheet 13 of described another silicon steel sheet 32 is plugged in first recess 113 of the first straight sheet 11 of a described silicon steel sheet 31, and second protuberance 134 of the 3rd straight sheet 13 of described another silicon steel sheet 32 snaps onto in second recess 114 of the first straight sheet 11 of a described silicon steel sheet 31; In following drum stand 22, first protuberance 133 of the 3rd straight sheet 13 of a described silicon steel sheet 31 is plugged in first recess 113 of the first straight sheet 11 of described another silicon steel sheet 32, and second protuberance 134 of the 3rd straight sheet 13 of a described silicon steel sheet 31 snaps onto in second recess 114 of the first straight sheet 11 of described another silicon steel sheet 32.
The silicon steel structure of a kind of current transformer of the present utility model and current transformer thereof, on silicon steel structure, there is not punching, when 31,32 pairs of two silicon steel sheets are connected into the shaped as frame of a closure, be utilized first protuberance 133 between two silicon steel sheets to cooperate with grafting between first recess 113 and second protuberance 134 and second recess 114 between be fastened and realize, and utilize multi-disc stacked and be tight against at last drum stand 21, the mode in the drum stand 22 forms the iron core of current transformer down.
The foregoing description only is used for further specifying the silicon steel structure and the current transformer thereof of a kind of current transformer of the present utility model; but the utility model is not limited to embodiment; every foundation technical spirit of the present utility model all falls in the protection range of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (5)
1. the silicon steel sheet of a current transformer, it is a thin slice body, it is characterized in that: this thin slice body is made of the first straight sheet, the second straight sheet and the 3rd straight sheet, join for vertical one between the first straight sheet and the second straight sheet, join for vertical one between the second straight sheet and the 3rd straight sheet, and the first straight sheet and the 3rd straight sheet parallel and are in the same side of the second straight sheet; The outer ledge of this first straight sheet and the second straight sheet are perpendicular, and the inside edge of this first straight sheet is the direction shelve laterally; The inside edge of the 3rd straight sheet and the second straight sheet are perpendicular, and the outer ledge of the 3rd straight sheet is the direction shelve to the inside, and are made as to coincide with the inside edge of the 3rd straight sheet of Rotate 180 degree and paste mutually; The inner end of the inside edge of the 3rd straight sheet is provided with first recess, and the end of the outer ledge of the 3rd straight sheet is provided with first protuberance that can coincide and cooperate with first recess of the first straight sheet of Rotate 180 degree; The end of the inside edge of the first straight sheet is provided with second recess, and the inner end of the outer ledge of the 3rd straight sheet is provided with second protuberance that can coincide and cooperate with second recess of the first straight sheet of Rotate 180 degree.
2. the silicon steel sheet of current transformer according to claim 1, it is characterized in that: the recess direction of described first recess is along the incline direction of the inside edge of the first straight sheet, described first protuberance protrude out the incline direction of direction along the outer ledge of the 3rd straight sheet.
3. the silicon steel sheet of current transformer according to claim 1, it is characterized in that: the incline direction of the inside edge of the recess direction of described second recess and the first straight sheet is perpendicular, and the incline direction of the outer ledge that protrudes out direction and the 3rd straight sheet of described second protuberance is perpendicular.
4. the silicon steel sheet of current transformer according to claim 1, it is characterized in that: the recess of described second recess is an arc, described second protuberance is an arc.
5. current transformer based on the described silicon steel sheet of claim 1 is characterized in that: comprise drum stand, drum stand and multi-disc are stacked and be tight against silicon steel sheet assembly in upper and lower drum stand down; Every silicon steel sheet assembly is made up of two described silicon steel sheets of claim 1 respectively, first straight sheet of one of them silicon steel sheet and the 3rd straight sheet are inserted by a side respectively and go up in drum stand and the following drum stand, and first straight sheet of another silicon steel sheet wherein and the 3rd straight sheet are respectively by in drum stand and the last drum stand under the opposite side insertion; In last drum stand, first protuberance of the 3rd straight sheet of described another silicon steel sheet is plugged in first recess of the first straight sheet of a described silicon steel sheet, and second protuberance of the 3rd straight sheet of described another silicon steel sheet snaps onto in second recess of the first straight sheet of a described silicon steel sheet; In following drum stand, first protuberance of the 3rd straight sheet of a described silicon steel sheet is plugged in first recess of the first straight sheet of described another silicon steel sheet, and second protuberance of the 3rd straight sheet of a described silicon steel sheet snaps onto in second recess of the first straight sheet of described another silicon steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200549218U CN201984936U (en) | 2011-03-03 | 2011-03-03 | Current transformer and silicon sheet structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200549218U CN201984936U (en) | 2011-03-03 | 2011-03-03 | Current transformer and silicon sheet structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201984936U true CN201984936U (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200549218U Expired - Fee Related CN201984936U (en) | 2011-03-03 | 2011-03-03 | Current transformer and silicon sheet structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201984936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208258A (en) * | 2011-03-03 | 2011-10-05 | 厦门宏美电子有限公司 | Silicon-steel sheet structure of current transformer and current transformer |
-
2011
- 2011-03-03 CN CN2011200549218U patent/CN201984936U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208258A (en) * | 2011-03-03 | 2011-10-05 | 厦门宏美电子有限公司 | Silicon-steel sheet structure of current transformer and current transformer |
| CN102208258B (en) * | 2011-03-03 | 2012-10-10 | 厦门宏美电子有限公司 | Silicon-steel sheet structure of current transformer and current transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XIAMEN HONGFA ELECTRICAL SAFETY + CONTROLS CO., LT Free format text: FORMER NAME: XIAMEN HONGMEI ELECTRONIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Jimei North Industrial Zone, Xiamen city of Fujian province Donglin road 361000 No. 566 Patentee after: XIAMEN HONGFA ELECTRICAL SAFETY & CONTROLS CO., LTD. Address before: Jimei North Industrial Zone, Xiamen city of Fujian province Donglin road 361000 No. 566 Patentee before: Xiamen Hongmei Electronic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20180303 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |