CN202549569U - Novel three-dimensional coil iron core transformer clamp - Google Patents
Novel three-dimensional coil iron core transformer clamp Download PDFInfo
- Publication number
- CN202549569U CN202549569U CN2012200262246U CN201220026224U CN202549569U CN 202549569 U CN202549569 U CN 202549569U CN 2012200262246 U CN2012200262246 U CN 2012200262246U CN 201220026224 U CN201220026224 U CN 201220026224U CN 202549569 U CN202549569 U CN 202549569U
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- clamping piece
- upper clamping
- arm
- iron core
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Abstract
The utility model discloses a novel three-dimensional coil iron core transformer clamp, which comprises a hanging ring, an upper clamping piece, a lower clamping piece, a central straining screw and a fastening nut, wherein the upper clamping piece and the lower clamping piece are connected in a straining mode through at least one staining screw and the fastening nut; and the upper clamping piece and/or the lower clamping piece has a Y-shaped structure. The clamp is not only simple in structure, light in weight and low in cost, but also is beneficial for the heat radiation of a transformer winding and an iron core.
Description
Technical field
The utility model relates to the member that a kind of transformer is used, and is that a kind of three-dimensional reel iron core transformer is used folder specifically.
Background technology
The three-phase stereo reel iron core transformer is the lower novel high-performance transformer of a kind of more reasonable structure, more excellent performance and manufacturing cost.Its iron core is to adopt silicon steel band or amorphous alloy strips to form the iron core single frame through reeling, and again three iron core single frames is combined into the three-dimensional coiled core that three-dimensional equilateral triangle constitutes.The large-scale popularization of this three-phase stereo reel iron core transformer is used will save a large amount of energy and material, and economic benefit very significantly.Its advantage:
1, three-phase stereo volume coiling iron core is tight, and its activity coefficient is increased.
2, the three-phase magnetic circuit of three-phase stereo volume iron core symmetry, magnetic resistance and exciting current is little, no-load loss and noise level are low fully.
3, save material cost.
Folder is a requisite member in the transformer, is used for fixing iron core and winding.But the employing of the folder of existing three-phase stereo reel iron core transformer is drawn screw-rod structure to clamp and is strained transformer core and winding; Upper and lower folder is generally the framework that becomes equilateral triangle substantially that is welded into by steel; " three-dimensional coil iron core dry-type transformer folder " like Guangdong Haihong Transformer Co., Ltd. among the Chinese patent document CN201196898; Its folder comprises upper clamping piece that is roughly triangular framing and the lower clamping piece that is welded into by angle steel; Upper clamping piece is provided with each limit leg-of-mutton locating rack parallel with the leg of frame relatively with lower clamping piece inside and constitutes; Because triangle locating rack and triangular framing are separate member; Therefore the triangular framing of upper clamping piece and lower clamping piece and triangle locating rack will be respectively be connected with a center stretching screw and strain through at least three alternate position of winding clamping screws that are placed on transformer, are standing screw, and the outside of the leg of frame of upper clamping piece and lower clamping piece also will be provided with support plate perforate on the folder framework accordingly.The problem that this transformer folder exists has:
1, the equilateral triangle frame structure that is welded into of this angle steel is complicated; The equilateral triangle framework that upper clamping piece and lower clamping piece are welded into by angle steel and the triangle locating rack at middle part; Make transformer core and winding upper surface and lower surface major part covered by folder; So the mobile poor performance of axial air, the transformer body heat dispersion is poor.Because the existence of alternate position stretching screw and strutting piece thereof has also influenced the ventilation of the alternate position of three-phase stereo coil iron core dry-type transformer winding, makes its local ventilation relatively poor, has also further influenced radiating effect.
2, owing to the folder complex structure, steel using amount is big, and not only cost is high, and deadweight simultaneously is also big, and assembling is complicated.
3, owing to adopt the transformer of stretching screw structure to install at least three stretching screws additional, not only increased the difficulty that insulate between outer winding and the stretching screw in the alternate position of winding; More to outside lead simultaneously three-phase stereo coil iron core dry-type transformer, lead-in wire and alternate stretching screw close together, the difficulty of insulation processing between having increased it and having gone between, and may increase the volume and the cost of this type of transformer.
The utility model content
In view of this, the utility model is to provide a kind of novel solid reel iron core transformer folder, to solve transformer weak heat-dissipating, cost height and the big problem of weight that above-mentioned folder exists.
For addressing the above problem; The novel solid reel iron core transformer folder that the utility model provides; Comprise upper clamping piece, lower clamping piece and center stretching screw and clamp nut, said center stretching screw is connected said upper clamping piece and lower clamping piece center through said clamp nut tension.
Further, said upper clamping piece and/or said lower clamping piece are star structure.
Said upper clamping piece comprises casting die on the upper clamping piece, said lower clamping piece comprise with said upper clamping piece on casting die lower clamping piece piece under pressure in opposite directions; On the said upper clamping piece casting die by with positive Y shape radially the pressure nail of pressure arm and the installation that is fixed on radially the pressure arm outer end and tangential pressure arm that radially pressure arm is vertical and pressure arm end, tangential constitute, positive Y shape radially is provided with centre bore in joint portion, pressure arm center; Said lower clamping piece piece under pressure by positive Y shape radially support arm be fixed on the location ailing that radially the support arm outer end and tangential support arm that radially support arm is vertical and tangential arm end install and constitute, positive Y shape radially is provided with centre bore in joint portion, support arm center.
In opposite directions one side is provided with bayonet socket on said radially pressure arm and said radially support arm, to be used to fix iron core.
Said tangential pressure arm and tangential support arm are arc, and the hunchbacked direction of tangential pressure arm deviates from the hunchbacked direction of tangential support arm mutually.
Casting die is respectively the integrally casting molding structure with the lower clamping piece piece under pressure on the said upper clamping piece except that pressing nail.
Casting die and lower clamping piece piece under pressure are integrally welded by the steel pipe and the steel plate of center on the perhaps said upper clamping piece, and said steel plate is vertical setting.
Perhaps the straight groove or the interior welding of slope mouth of processing on the tube wall of the said steel pipe corresponding with it inserted in an end of said steel plate.
For increasing tightening force and mechanical strength; The radially pressure arm end of casting die protrudes from said tangential pressure arm on the said upper clamping piece; The radially arm end of said lower clamping piece piece under pressure protrudes from said tangential support arm, and there are screw rod or steel plate tension in vertical relative radially pressure arm end with arm end radially.
Said upper clamping piece also comprises a upper clamping piece piece under pressure that is shorter than casting die on the said upper clamping piece; Said upper clamping piece piece under pressure is included as positive Y shape pressing plate; Y shape pressing plate end is equipped with presses nail; The middle part is provided with centre bore and is enclosed within on the stretching screw of said center, and the radially pressure arm of casting die is 60 degree angles on upper clamping piece piece under pressure Y shape arm and the said upper clamping piece; Said lower clamping piece also comprises casting die on the lower clamping piece that is shorter than said lower clamping piece piece under pressure; Casting die comprises that the end is equipped with the positive Y shape arm of pressing nail on the said lower clamping piece; The middle part is provided with centre bore and is enclosed within on the said stretching screw, and the radially support arm of casting die Y shape arm and said lower clamping piece piece under pressure is 60 and spends angles on the lower clamping piece.
Said upper clamping piece piece under pressure casting die except that the pressure nail and on the lower clamping piece is integrally welded respectively.
Casting die is welded on the corresponding steel pipe by three blocks of vertical steel plates and constitutes on said upper clamping piece piece under pressure and/or the lower clamping piece, and vertical steel plate end is welded with horizontal support plate.
Perhaps, casting die is a positive Y shape steel plate on said upper clamping piece piece under pressure and/or the lower clamping piece, and positive Y shape steel plate contiguous branch root is an arc-shaped transition, and there is the centre bore that passes said center bolt at the steel plate middle part.
There is being clamp nut to be installed on the stretching screw of said center above the said upper clamping piece piece under pressure.
Said suspension ring are the upper ends that are installed in said center stretching screw through screw.
This novel solid reel iron core transformer folder of the utility model is used for transformer secured core and winding, with traditional being compared with the folder that the triangle locating rack constitutes by triangular framing, has following advantage:
1, adopt Y shape to compare with adopting triangular frame structure, simple in structure, in light weight, material usage is little, and the cost of material is low.
2, adopt positive Y shape structure to compare with adopting triangle folder structure, little with respect to the projected area of winding, improved three-phase stereo coil iron core dry-type transformer winding upper and lower end face ventilation condition, make radiating effect better, can reduce cost.
3, casting die is Y shape structure on said upper clamping piece piece under pressure and the lower clamping piece, and size is less, has improved the ventilation condition of central region between three phase windings, has also further improved radiating effect.
4, can not need three alternate stretching screws only with a center stretching screw, avoided Insulation Problems between stretching screw and outer winding and the lead-in wire, practiced thrift material and improved the alternate position of three-phase stereo coil iron core dry-type transformer winding ventilation condition.
5, product appearance is more succinct.
Description of drawings
Fig. 1 is the novel solid reel iron core transformer folder perspective view of the utility model.
Fig. 2 is the another kind of embodiment plane schematic top plan view of casting die on the upper clamping piece.
Among the figure:
The 1-suspension ring, 2-upper clamping piece, 3-center stretching screw, 4-lower clamping piece, 5-base, 6-clamp nut;
Casting die on the 21-upper clamping piece
211-is pressure arm radially, 211A-bayonet socket, 211B-end;
212-tangential pressure arm, the 212A-back of a bow;
213-presses nail,
The 214-steel pipe
The 22-clamp nut,
23-upper clamping piece piece under pressure,
231-Y shape pressing plate, 232-presses nail,
Casting die on the 41-lower clamping piece,
The 411-steel pipe, 412-Y shape arm support plate, 413-locatees ailing,
42-lower clamping piece piece under pressure,
The 421-steel pipe,
422-is support arm radially,
The 422A-bayonet socket, the 422B-end;
423-tangential support arm,
The 424-support plate,
425-locatees nail.
Embodiment
For clearly demonstrating the scheme in the utility model, provide preferred embodiment below and be described with reference to the accompanying drawings.
As shown in Figure 1, be a good embodiment of reality of the novel solid reel iron core transformer folder that relates to of the utility model.
As shown in Figure 1; It is a kind of novel solid reel iron core transformer folder preferred embodiments of the utility model; This folder comprises upper clamping piece 2, lower clamping piece 4 and center bolt 3 and clamp nut 6; Upper clamping piece 2 is provided with through hole with lower clamping piece 4 centers, is used to pass center stretching screw 3, can strain with clamp nut 6 with said clamp nut 22 through a center stretching screw 3 to be connected; The iron core and the coil windings of transformer are fixedly clamped between upper clamping piece 2 and lower clamping piece 4, realize fixing and protection iron core and coil.
Upper clamping piece 2 is two Y shape structures with lower clamping piece 4, is the positive Y shape of adopting three " branches " in the embodiment shown in fig. 1.Make and be formed with the space that is beneficial to heat radiation between the positive Y shape each " branch ".Lower clamping piece 4 is arranged on the base 5.
Upper clamping piece 2 comprises casting die 21 on the upper clamping piece; Lower clamping piece 4 comprise with upper clamping piece on casting die 21 lower clamping piece piece under pressure 42 in opposite directions; Lower clamping piece piece under pressure 42 is held iron core and winding from the bottom; On the upper clamping piece casting die 21 under center stretching screw 3 and clamp nut 6 effects from above iron core and winding are pushed down, iron core and coil are clamped on the upper clamping piece on the casting die 21 and lower clamping piece piece under pressure 42 and upper clamping piece piece under pressure 23 and lower clamping piece between the casting die 42.
Casting die 21 is to follow closely 213 by the pressure that install at fixing tangential pressure arm 212 vertical with pressure arm radially 211 of the radially pressure arm 211 that distributes with positive Y shape and pressure arm outer end 211B radially and tangential pressure arm 212 both ends to constitute on the upper clamping piece; Press nail 213 to adopt bolt so that regulate crush and thrust, positive Y shape radially is provided with steel pipe 214 is worn center bolt 3 with formation centre bore in joint portion, pressure arm 211 center.Lower clamping piece piece under pressure 42 by positive Y shape radially the pressure nail 425 of support arm support plate 422 and tangential support arm 423 that radially support arm outer end 422B is hard-wired with radially support arm is vertical and tangential arm end constitute, positive Y shape radially joint portion, support arm 422 center is provided with the centre bore that steel pipe 421 constitutes equally.Casting die 41 on casting die 21 and lower clamping piece piece under pressure 42 and upper clamping piece piece under pressure 23 and the lower clamping piece on the upper clamping piece is clamped in the upper and lower end face of winding through pressing nail and iron yoke cushion block symmetry.In the present embodiment since each radially the pressure arm two ends all with press nail and Y shape pressing plate on the pressure nail all be pressed on the iron yoke cushion block on the same coil upper end face, adopts three compress a little can provide by force than and stable clamping.And no matter be all to have big gap between the support arm of tangential or between the pressure arm of tangential; Constitute the circulation of air heat dissipation channel of coil upper and lower end face; Help circulation of air; Same because radially between the pressure arm and very big gap is radially also arranged between the support arm, make that the center forms effective circulation of air heat dissipation channel between three coils of transformer, help heat radiation.While has simple in structure again, and the few and lightweight characteristics of material usage particularly only need a center stretching screw 3 to strain, and can reduce the stretching screw of three alternate positions of the prior art, also help assembling and minimizing cost.
For ease of utilizing upper clamping piece and lower clamping piece held stationary iron core; As a preferred embodiment; In opposite directions one side is provided with bayonet socket on said radially pressure arm 211 and said radially support arm 422; For example trapezoidal bayonet socket 211A and trapezoidal bayonet socket 422A among Fig. 1, the shape of bayonet socket matches with the volume iron core, adopts this bayonet arrangement with more simple effective with other fixture secured core structure compared; Do not need other parts of extra increase, help reducing material cost, weight and help reducing taking heat dissipation channel.Be positioned at the support plate 424 that said bayonet socket both sides are provided with radially support arm is vertical at said radially support arm 422, increase bearing-surface, improve stability of strutting system and avoid radially support arm bayonet socket place pressure excessive the destruction of support arm radially to iron core.
Said tangential pressure arm 212 is arc with tangential support arm 423; Hunchbacked 212A direction with the tangential pressure arm deviates from the hunchbacked direction of tangential support arm mutually; Except that helping improving the stressed bending resistance; Distance between tangential pressure arm and tangential support arm middle part and the corresponding Transformer Winding is increased, help circulation of air, heat radiation.
Casting die 21 all can be the integrally casting molding structure with lower clamping piece piece under pressure 42 on the said upper clamping piece, also can welding fabrication.Radially pressure arm, radially support arm and tangential pressure arm, tangential support arm can adopt the rod member or the pipe fitting of different cross section shape, for example circular, square, polygon, ellipse etc.
In the present embodiment on the upper clamping piece casting die 21 be welded into 42 steel pipe 214,421 and steel plates of lower clamping piece piece under pressure by the center, the steel plate that constitutes pressure arm 211,212 and support arm 422,423 is vertical setting.Adopt the benefit of vertical steel plate to be: 1, to help improving the ventilation area at transformer end face place for a short time, be beneficial to heat radiation in same intensity lower steel plate horizontal projected area.2, the bending resistance of material is strong under the equal sectional area, helps reducing material cost and weight.Steel plate can be attached to directly welding on the steel pipe with end face, welds in straight groove of processing on the tube wall for the said steel plate of the raising weld strength end insertion said steel pipe corresponding with it or the slope mouth.
For the larger capacity transformer; For increasing tightening force and mechanical strength; Radially pressure arm end 211B on the upper clamping piece in the casting die 21 protrudes from tangential pressure arm 212; Radially arm end 422B in the lower clamping piece piece under pressure 42 protrudes from tangential support arm 423, and there are screw rod or steel plate (omitting among the figure) tension in vertical relative radially pressure arm 211 ends with support arm 422 ends radially.Used clamp nut can be plain nut, also can be stop nut.Though this mode will increase the screw rod or the steel plate of three alternate positions; But through change pressure arm 211 radially and radially support arm 422 end extension elongations can guarantee alternate position screw rod or steel plate away from winding distance enough far away, therefore still can guarantee the good heat radiating of winding and the insulating properties between winding and screw rod or the steel plate.
Utilize on the upper clamping piece on casting die 21 and lower clamping piece piece under pressure 42 and upper clamping piece piece under pressure 23 and the lower clamping piece casting die 41 can realize gripping to iron core and coil.For realizing that each coil upper end face guarantees to have three to press nail to compress.This moment is as shown in Figure 1, then can make said upper clamping piece 21 comprise a upper clamping piece piece under pressure 23 that is shorter than casting die 21 on the said upper clamping piece again.Upper clamping piece piece under pressure 23 comprises also and forms positive Y shape pressing plate 231 by three arms; The Y shape arm end of Y shape pressing plate 231 is equipped with presses the nail (not shown); The middle part is provided with centre bore and is enclosed within on the said stretching screw 3, and the radially pressure arm of casting die is 60 degree angles on upper clamping piece piece under pressure Y shape pressing plate and the said upper clamping piece.Accordingly; Said lower clamping piece 4 also comprises casting die 41 on the lower clamping piece that is shorter than said lower clamping piece piece under pressure 42; Casting die 41 comprises that the end is equipped with the positive Y shape arm formation support plate 412 of location nail 413 on the lower clamping piece; The middle part is provided with steel pipe 411 and constitutes centre bores and be enclosed within on the said stretching screw 3, and the radially support arm of casting die Y shape arm and said lower clamping piece piece under pressure is 60 and spends angles on the lower clamping piece.
Casting die 41 is except that pressing nail or difference one welding fabrication the nail of location on upper clamping piece piece under pressure 21 and the lower clamping piece.
As shown in the figure, the support plate 412 that casting die 41 is made up of Y shape arm on the lower clamping piece is to be welded on the corresponding steel pipe 411 by three blocks of vertical steel plates, and vertical steel plate end is welded with horizontal support plate.Steel pipe 411 is close together with steel pipe 421, can certainly be same steel pipe.
23 of upper clamping piece piece under pressures are made up of the positive Y shape of monoblock pressing plate 231, and adjacent Y shape arm roots is an arc-shaped transition, and there is the centre bore that passes center bolt 3 at the steel plate middle part.Also having a clamp nut 22 to be installed on the said center stretching screw 3 above the said upper clamping piece piece under pressure, utilize clamp nut 22 can adjust the thrust and the position of 23 pairs of windings of upper clamping piece piece under pressure.Certainly can also comprise that a steel pipe is welded on the steel pipe Y shape support arm pressing plate 231.
Upper clamping piece piece under pressure 23 can adopt with lower clamping piece shown in Fig. 1 on the identical structure of casting die 41.Casting die 41 also can adopt the structure identical with the piece under pressure of upper clamping piece shown in Fig. 1 23 on the lower clamping piece.
Fig. 2 then shows the another kind of star execution mode sketch map of casting die on the upper clamping piece, and each presses nail to be mounted in one radially on the pressure arm, and this structure is compared with mode shown in Figure 1 and cancelled the tangential pressure arm, has increased radially pressure arm.Be fit to casting.Certainly the lower clamping piece piece under pressure also can adopt this star structure.
For the method and apparatus of being set forth among each embodiment of the utility model, all within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (15)
1. novel solid reel iron core transformer folder; Comprise suspension ring (1), upper clamping piece (2), lower clamping piece (4) and center stretching screw (3) and clamp nut (6), it is characterized in that: said center stretching screw is connected said upper clamping piece (2) and lower clamping piece (4) center through said clamp nut tension.
2. novel solid reel iron core transformer folder as claimed in claim 1 is characterized in that: said upper clamping piece (2) and/or said lower clamping piece (4) are star structure.
3. novel solid reel iron core transformer folder as claimed in claim 2; It is characterized in that: said upper clamping piece (2) comprises casting die on the upper clamping piece (21), said lower clamping piece (4) comprise with said upper clamping piece on casting die (21) lower clamping piece piece under pressure (42) in opposite directions; Casting die on the said upper clamping piece (21) by with positive Y shape radially the pressure nail (213) of pressure arm (211) and the installation that is fixed on radially pressure arm (211) outer end and tangential pressure arm (212) that radially pressure arm (211) is vertical and pressure arm end, tangential constitute, positive Y shape radially is provided with centre bore in joint portion, pressure arm center; Said lower clamping piece piece under pressure (42) by positive Y shape radially support arm (422) be fixed on the location nail (425) that radially the support arm outer end and tangential support arm (423) that radially support arm is vertical and tangential arm end install and constitute, positive Y shape radially is provided with centre bore in support arm (422) joint portion, center.
4. novel solid reel iron core transformer folder as claimed in claim 3 is characterized in that: in opposite directions one side is provided with bayonet socket on said radially pressure arm and said radially support arm.
5. novel solid reel iron core transformer folder as claimed in claim 3; It is characterized in that: said tangential pressure arm (212) and tangential support arm (423) are arc, and the hunchbacked direction of tangential pressure arm (212) deviates from the hunchbacked direction of tangential support arm (423) mutually.
6. like described novel solid reel iron core transformer folder one of in the claim 3 to 5, it is characterized in that: casting die on the said upper clamping piece (21) is except that pressing the and lower clamping piece piece under pressure (42) of nail (213) to be respectively the integrally casting molding structure.
7. like described novel solid reel iron core transformer folder one of in the claim 3 to 5; It is characterized in that: casting die on the said upper clamping piece (21) and lower clamping piece piece under pressure (42) are integrally welded by the steel pipe and the steel plate of center, and said steel plate is vertical setting.
8. novel solid reel iron core transformer folder as claimed in claim 7 is characterized in that: the straight groove or the interior welding of slope mouth of processing on the tube wall of the said steel pipe corresponding with it inserted in an end of said steel plate.
9. like described novel solid reel iron core transformer folder one of in the claim 3 to 5; It is characterized in that: radially pressure arm (211) end of casting die on the said upper clamping piece (21) protrudes from said tangential pressure arm (212); Radially support arm (422) end of said lower clamping piece piece under pressure (42) protrudes from said tangential support arm (423), and there are screw rod or steel plate tension in vertical relative radially pressure arm end (211B) with arm end (422B) radially.
10. like described novel solid reel iron core transformer folder one of in the claim 3 to 5; It is characterized in that: said upper clamping piece (2) also comprises a upper clamping piece piece under pressure (23) that is shorter than casting die on the said upper clamping piece (21); Said upper clamping piece piece under pressure (23) comprises positive Y shape pressing plate (231); Y shape pressing plate end is equipped with presses nail (232); The middle part is provided with centre bore and is enclosed within on the said center stretching screw (3), and the radially pressure arm (211) of casting die (21) is 60 degree angles on the Y shape pressing plate (231) of upper clamping piece piece under pressure (23) and the said upper clamping piece; Said lower clamping piece (4) also comprises casting die (41) on the lower clamping piece that is shorter than said lower clamping piece piece under pressure (42); Casting die on the said lower clamping piece (41) comprises that the end is equipped with the positive Y shape arm of pressing nail; The middle part is provided with centre bore and is enclosed within on the said center stretching screw (3), and the radially support arm (422) of Y shape arm and the said lower clamping piece piece under pressure (42) of casting die (41) is 60 and spends angles on the lower clamping piece.
11. novel solid reel iron core transformer folder as claimed in claim 10 is characterized in that: said upper clamping piece piece under pressure (23) except that press nail (232) with lower clamping piece on casting die (41) distinguish integrally welded.
12. novel solid reel iron core transformer folder as claimed in claim 10; It is characterized in that: casting die (41) is welded on the corresponding steel pipe by three blocks of vertical steel plates and constitutes on said upper clamping piece piece under pressure (23) and/or the lower clamping piece, and vertical steel plate end is welded with horizontal support plate.
13. novel solid reel iron core transformer folder as claimed in claim 10; It is characterized in that: casting die (41) is a positive Y shape steel plate on upper clamping piece piece under pressure (23) and/or the lower clamping piece; Positive Y shape steel plate contiguous branch root is an arc-shaped transition, and there is the centre bore that passes said center bolt at the steel plate middle part.
14. novel solid reel iron core transformer folder as claimed in claim 10 is characterized in that: have clamp nut (22) to be installed on the stretching screw of said center in said upper clamping piece piece under pressure (23) top.
15. like described novel solid reel iron core transformer folder one of in the claim 1 to 5, it is characterized in that: said suspension ring (1) are the upper ends that is installed in said center stretching screw (3) through screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200262246U CN202549569U (en) | 2012-01-19 | 2012-01-19 | Novel three-dimensional coil iron core transformer clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200262246U CN202549569U (en) | 2012-01-19 | 2012-01-19 | Novel three-dimensional coil iron core transformer clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549569U true CN202549569U (en) | 2012-11-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200262246U Withdrawn - After Issue CN202549569U (en) | 2012-01-19 | 2012-01-19 | Novel three-dimensional coil iron core transformer clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202549569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543381A (en) * | 2012-01-19 | 2012-07-04 | 北京新特电气有限公司 | Novel three-dimensional wound iron core transformer clamping part |
-
2012
- 2012-01-19 CN CN2012200262246U patent/CN202549569U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102543381A (en) * | 2012-01-19 | 2012-07-04 | 北京新特电气有限公司 | Novel three-dimensional wound iron core transformer clamping part |
| CN102543381B (en) * | 2012-01-19 | 2014-08-13 | 北京新特电气有限公司 | Novel three-dimensional wound iron core transformer clamping part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121121 Effective date of abandoning: 20140813 |
|
| RGAV | Abandon patent right to avoid regrant |