CN209607547U - A kind of impact-proof structure and transformer applied to amorphous transformer - Google Patents
A kind of impact-proof structure and transformer applied to amorphous transformer Download PDFInfo
- Publication number
- CN209607547U CN209607547U CN201920169595.1U CN201920169595U CN209607547U CN 209607547 U CN209607547 U CN 209607547U CN 201920169595 U CN201920169595 U CN 201920169595U CN 209607547 U CN209607547 U CN 209607547U
- Authority
- CN
- China
- Prior art keywords
- outer support
- winding
- inner support
- support frame
- support part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model discloses a kind of impact-proof structure, inner support frame is set between corresponding stem and winding, and inner support component is provided in inner support frame；A pair of first outer support part is separately positioned on the two sides up and down of inner support frame, and exceeding between part for the first outer support part is provided with a second outer support part；Upper and lower plywoods are separately positioned on the two sides up and down of the first outer support part, and the left and right perpendicularly inward bending in both ends is to be respectively formed envelope, the left and right both ends connection of upper and lower plywoods to the upper and lower iron yoke of entire core portion；A pair of of outer support frame is separately positioned on the front and rear ends of entire windings section, and an opposite side clamping plate is separately positioned on the forward and backward iron yoke of entire core portion, forms envelope to the forward and backward iron yoke of entire core portion；Side clamping plate is connect with upper and lower plywoods.The utility model can increase winding when by short-circuit current rush, and winding resists upper and lower displacement, deformation axial force and the ability for inside contracting, extending out diametral force.
Description
Technical field
The invention belongs to transformer technology fields, and in particular to a kind of impact-proof structure and change applied to amorphous transformer
Depressor.
Background technique
Raising with market to transformer reliability requirement, the raising of transformer safety in utilization are always product in the industry
The emphasis of research and development.
In industry, transformer Reliability Check one is tested to resistance to shorting rush of current as a big emphasis mark post.Work as transformation
When device bears huge short-circuit current rush, the winding of transformer is held under the action of electric current inductive axis, radial short-circuit electromotive force
By deformation, the huge examination of displacement.In the radial stress of winding, low pressure winding is constantly inside contracted, and high-voltage winding constantly extends out；In
In axis of winding stress, the interaction force as caused by conducting wire causes constantly to be displaced and beat on axis of winding.Such
Under complicated short-circuit electromotive force stress condition, winding insulation and corresponding resistance to deformation, resist displacement ability are by huge test.
In conclusion needing a kind of well-designed stress support system of winding to help winding by short-circuit electromotive force
When impact, axial force and the diametral force acted on the body is resisted.
Summary of the invention
It is an object of the invention to overcome deficiency in the prior art, a kind of protecting against shock applied to amorphous transformer is provided
Structure and transformer can increase winding when by short-circuit current rush, and winding resists upper and lower displacement, deformation axial force and interior
Contract, extend out the ability of diametral force, so that resistance to shorting rush of current ability and the product operation for promoting transformer body and winding can
By property.
To solve prior art problem, the invention discloses a kind of impact-proof structures applied to amorphous transformer, including
A pair of first outer support part, a pair of second outer support part, upper and lower plywoods, a pair of upper and lower briquetting, an opposite side clamping plate, an external branch
Support frame frame and several inner support frames；
Inner support frame is set between corresponding stem and winding, forms support, inner support for the inside to winding
Inner support component is provided in frame；
A pair of first outer support part is separately positioned on the two sides up and down of inner support frame, for the two sides shape up and down to winding
At compression；The length of first outer support part is greater than the length of entire windings section and exceeds its both ends forward and backward entirely
Windings section, exceeding between part for the first outer support part are provided with a second outer support part；
Upper and lower plywoods are separately positioned on the two sides up and down of the first outer support part and are held out against by the first outer support part, left and right
The perpendicularly inward bending in both ends is to be respectively formed envelope, the left and right both ends point of upper clamp plate to the upper and lower iron yoke of entire core portion
Not Tong Guo a upper holder block upper surface at the left and right both ends of winding formed compress, the left and right both ends of lower clamp plate pass through one respectively
A lower lock block forms the lower end surface at the left and right both ends of winding and compresses；It is drawn by least one at the left and right both ends of upper and lower plywoods
Screw rod connection；
A pair of of outer support frame is separately positioned on the front and rear ends of entire windings section and by corresponding second outer support part
Support forms support for the front and rear ends to entire windings section, and an opposite side clamping plate is separately positioned on entire core portion
Forward and backward iron yoke, the left and right perpendicularly inward bending in both ends form envelope to the forward and backward iron yoke to entire core portion；Side clamping plate
It is connect respectively by the first bolt with upper and lower plywoods.
Further, inner support component includes the first inner support member and the second inner support member；First inner support member and second
Inner support member is connected in a manner of square crossing, and edge portions abut the inner wall of inner support frame.
Further, the first outer support part, the second outer support part, outer support frame, inner support frame, the first inner support member
It is made with the second inner support member of steel plate or glass fabric.
Further, a pair of of outer support frame is respectively sleeved at the periphery of the forward and backward iron yoke of entire core portion, outside second
Supporting element, which is arranged in outer braced frame, forms support.
Further, a upper right angle fixing piece is respectively set in the dogleg section at the left and right both ends of upper clamp plate, and upper right angle is solid
The dogleg section for determining the vertical portion of part and the left and right both ends of upper clamp plate connects, and horizontal component is provided with for drawing screw rod to pass through
Connecting hole, the horizontal component of upper right angle fixing piece forms the top surface of upper holder block and compresses；
A lower right angle fixing piece is respectively set in the dogleg section at the left and right both ends of lower clamp plate, and lower right angle fixing piece erects
Straight part is connect with the dogleg section at the left and right both ends of upper clamp plate, and horizontal component is provided with the connecting hole for drawing screw rod to pass through,
The horizontal component of lower right angle fixing piece forms the bottom surface of lower lock block and compresses.
Further, the dogleg section at the left and right both ends of side clamping plate is respectively perpendicular two fixing pieces of setting, upper and lower plywoods
The end of dogleg section be respectively arranged with the connecting plate of corresponding fixing piece, be provided on fixing piece and connecting plate for the first spiral shell
The connecting hole that bolt passes through.
Further, several lifting lugs are additionally provided in the dogleg section of upper clamp plate, lifting lug is bolted to by second
On clamping plate.
Further, the shaft of screw rod is drawn to be set in the gap between adjacent winding.
Further, the first outer support part and the second outer support part are aligned with the central axis of inner support frame respectively.
The present invention also provides a kind of transformer, including core portion and windings section, the winding in windings section is wound
The periphery of correspondence stem in core portion further includes a kind of above-mentioned impact-proof structure applied to amorphous transformer.
The invention has the benefit that winding can be increased when by short-circuit current rush, winding resist upper and lower displacement,
Deformation axial force and the ability for inside contracting, extending out diametral force, to promote the resistance to shorting rush of current energy of transformer body and winding
Power and product operational reliability.
Detailed description of the invention
Fig. 1 is the structural front view of shock resistance structure in the present invention；
Fig. 2 be in Fig. 1 A-A to structure sectional view；
Fig. 3 is the structure right view of shock resistance structure in the present invention；
Fig. 4 is the partial enlarged view in Fig. 3 at B；
Fig. 5 is the partial enlarged view in Fig. 3 at C；
Fig. 6 is the right side local structural graph of windings section in Fig. 2；
Fig. 7 is the structural perspective of shock resistance structure internal part in the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
Term " forward and backward " in the present invention refers to the both ends of the length direction of transformer, and " left and right " refers to the width of transformer
The both ends in direction are spent, " upper and lower " refers to the both ends of the short transverse of transformer.
As shown in Fig. 1 to 7, a kind of transformer, including core portion, the rectangle that there are core portion several to be arranged successively
Iron core 25, the periphery of each iron core 25 is wound the winding 24 of rectangle, and transformer further includes impact-proof structure.
Specifically, impact-proof structure include a pair of first outer support part 9, a pair of second outer support part 5, upper and lower plywoods 6,
7, a pair of upper and lower briquetting 12, an opposite side clamping plate 8, a pair of of outer support frame 4 and several inner support frames 1.
Inner support frame 1 is rectangular frame, is set between corresponding stem 25 and winding 24, and stem is close in inside
25 outer wall, outer wall are close to the inside of winding 24, form support, setting in inner support frame 1 for the inside to winding 24
There is inner support component, provides internal support force by inner support component pair of interior support frame 1.Pass through inner support frame 1 and Nei Zhi
The combination of support component increases winding when by short-circuit current rush, and winding ontology resists low pressure winding and inside contracts diametral force
Ability.
It is respectively vertically arranged outside a first outer support part 9 and first and props up in the upper side and lower side of all inner support frames 1
The edge of support member 9 is contacted with the corresponding edge of inner support frame 1, is formed and is compressed for the two sides up and down to winding 24.Outside first
The length of supporting element 9 is greater than the length of entire windings section and makes its both ends respectively forwardly rear direction exceeds entire winding portion
Point, two of the same side of two the first outer support parts 9, which exceed between part, is provided with a second outer support part 5.
The top of the first outer support part 9 of 24 top of winding is arranged in upper clamp plate 6, and by the first outer support part 9 at it
Inside is held out against, and the left and right perpendicularly inward bending in both ends forms envelope to the upper yoke 15 to entire core portion.Upper clamp plate 6
Left and right both ends pass through a upper holder block 11 respectively the upper surface 13 at the left and right both ends of winding 24 formed and compress.Similarly,
The lower section of the first outer support part 9 below winding 24 is arranged in lower clamp plate 7, and is held out against on the inside of it by the first outer support part 9,
Its left and right perpendicularly inward bending in both ends forms envelope to the lower yoke 16 to entire core portion.Left and right the two of lower clamp plate 7
End is formed by lower end surface 14 of the lower lock block 12 to the left and right both ends of winding 24 compress respectively；Left and right the two of upper clamp plate 6
Screw rod 10 is drawn to connect by least one with the left and right both ends of lower clamp plate 6,7 in end.It can be seen that in the axial direction side of winding 24
Upwards, upper clamp plate 6, the first outer support part 9, inner support frame 1 and lower clamp plate 7 form effective rigid support, and 6 He of upper clamp plate
Upper holder block 11 forms the upper surface 13 of winding 24 and compresses, and lower clamp plate 7 and lower lock block 12 form pressure to the lower end surface 14 of winding 24
Tightly, therefore by above structure, winding is increased when by short-circuit current rush, and winding ontology resists upper and lower displacement, deformation
The ability of axial force.
A pair of of outer support frame 4 is separately positioned on the front and rear ends of entire windings section and by corresponding second outer support
Part 5 supports, and forms support for the front and rear ends to entire windings section, an opposite side clamping plate 8 is separately positioned on entire iron core portion
The forward and backward iron yoke divided is also a to be provided with a side clamping plate 8, and the perpendicularly inward bending in left and right both ends of side clamping plate 8 is to entire iron
The forward and backward iron yoke of core segment forms envelope；The upper end of side clamping plate 8 is connect by the first bolt 21 with upper clamp plate 6, and lower end passes through
First bolt 21 is connect with lower clamp plate 7.On the length direction of transformer, side clamping plate 8, upper clamp plate 6, lower clamp plate 7, outer support frame
Frame 4 and the second outer support part 5 form rigid support and increase winding when by short-circuit current rush, winding with this configuration
Ontology resists the ability that high-voltage winding extends out diametral force.
Further, inner support component includes the first inner support member 3 and the second inner support member 2；First inner support member 3 and
Two inner support members 2 are connected in a manner of square crossing, and edge portions abut the inner wall of inner support frame 1.Pass through square crossing
Mode has preferable supporting role, and is easily installed, and is reinforced without using other fasteners.
Further, branch in the first outer support part 9, the second outer support part 5, outer support frame 4, inner support frame 1, first
Support member 3 and the second inner support member 2 are poured with epoxy fibreglass or epoxy glass fabric winding, epoxy glass fabric lamination, curable epoxide
It builds and the modes such as steel plate shearing, bending, welding is process, there is preferable mechanical strength, can be improved for winding preferable
Support force.
Further, a pair of of outer support frame 4 is respectively sleeved at the periphery of the forward and backward iron yoke of entire core portion, side folder
Plate 8 is close to the lateral surface of corresponding outer support frame 4, and the setting of the second outer support part 5 forms branch to it in outer braced frame 4
Support.
Further, a upper right angle fixing piece 18 is respectively set in the dogleg section at the left and right both ends of upper clamp plate 6, upper straight
The vertical portion of angular fixed part 18 is connect with the dogleg section at the left and right both ends of upper clamp plate 6, preferred weld connection, horizontal part
Set up the connecting hole being equipped with for drawing screw rod 10 to pass through separately, the horizontal component of upper right angle fixing piece 18 forms pressure to the top surface of upper holder block 11
Tightly.Similarly, a lower right angle fixing piece 19, lower right angle fixing piece is respectively set in the dogleg section at the left and right both ends of lower clamp plate 7
19 vertical portion is connect with the dogleg section at the left and right both ends of upper clamp plate 6, and preferred weld connection, horizontal component is provided with
For the connecting hole for drawing screw rod 10 to pass through, the horizontal component of lower right angle fixing piece 19, which forms the bottom surface of lower lock block 12, to be compressed.Draw spiral shell
Upper clamp plate 6 and lower clamp plate 7 are fixed together by the connecting hole that bar 10 passes through on right angle fixing piece 18.In this way, not only
Can be convenient for the disassembly between upper clamp plate 6 and lower clamp plate 7, and can also effectively fix, improve impact strength.
Further, the dogleg section at the left and right both ends of side clamping plate 8 is respectively perpendicular two fixing pieces 17 of setting, specifically,
The fixing piece 17 at the left and right both ends of side clamping plate 8 is arranged one on the other, and preferred weld is fixed.Accordingly, upper and lower plywoods 6,7
The end of dogleg section is respectively arranged with the connecting plate 20 of corresponding fixing piece 17, is provided with confession on fixing piece 17 and connecting plate 20
The connecting hole that first bolt 21 passes through.First bolt passes through connecting hole and is fixedly connected with side clamping plate 8 with upper and lower plywoods 6,7.It is this
Mode can more rapidly and effectively connect side clamping plate 8 and upper and lower plywoods 6,7, so that forming one wraps up its remaining part
The firm shell of part, improves impact resistance.
Further, several lifting lugs 22 are additionally provided in the dogleg section of upper clamp plate 6, lifting lug 22 is connected by the second bolt 23
It connects on upper clamp plate 6.Lifting lug 22 can be in order to the lifting of upper clamp plate 6, consequently facilitating whole installation process is rapidly completed.
Further, between winding 24 there are gap, in order to reduce entire shock resistance structure left and right directions size, phase
The shaft of the drawing screw rod 10 of pass is set in the gap between adjacent winding 24.
Further, the first outer support part 9 and the second outer support part 5 are aligned with the central axis of inner support frame 1 respectively.
Uniform force is improved in this way, so that it is guaranteed that impact resistance.
In the description of the present application, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is only the present invention and simplified description for ease of description, rather than indicates or imply signified device
Or element must have a particular orientation, construct and operate for specific orientation, thus should not be understood as in present invention protection
The limitation of appearance.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of impact-proof structure applied to amorphous transformer, it is characterised in that: including a pair of first outer support part (9), one
To the second outer support part (5), upper and lower plywoods (6,7), a pair of upper and lower briquetting (12), an opposite side clamping plate (8), a pair of of outer support frame
Frame (4) and several inner support frames (1)；
The inner support frame (1) is set between corresponding stem (25) and winding (24), for the inside to winding (24)
Support is formed, is provided with inner support component in the inner support frame (1)；
The pair of first outer support part (9) is separately positioned on the two sides up and down of the inner support frame (1), for winding
(24) two sides up and down, which are formed, to be compressed；The length of the first outer support part (9) is greater than the length of entire windings section and makes it
Both ends exceed entire windings section forward and backward, and exceeding between part for the first outer support part (9) is provided with one
The second outer support part (5)；
The upper and lower plywoods (6,7) are separately positioned on the two sides up and down of the first outer support part (9) and are propped up outside by described first
Support member (9) is held out against, and the left and right perpendicularly inward bending in both ends is to upper and lower iron yoke (15,16) the difference shape to entire core portion
At envelope, the left and right both ends of the upper clamp plate (6) pass through a upper holder block (11) to the left and right both ends of winding (24) respectively
Upper surface (13), which is formed, to be compressed, and the left and right both ends of the lower clamp plate (7) pass through a lower lock block (12) to winding (24) respectively
The lower end surface (14) at left and right both ends, which is formed, to be compressed；The left and right both ends of the upper and lower plywoods (6,7) screw rod is drawn by least one
(10) it connects；
The pair of outer support frame (4) is separately positioned on the front and rear ends of entire windings section and is propped up outside by corresponding second
Support member (5) support forms support for the front and rear ends to entire windings section, and the pair of side clamping plate (8) is separately positioned on
The forward and backward iron yoke of entire core portion, the left and right perpendicularly inward bending in both ends is to the forward and backward iron yoke to entire core portion
Form envelope；The side clamping plate (8) is connect by the first bolt (21) with the upper and lower plywoods (6,7) respectively.
2. a kind of impact-proof structure applied to amorphous transformer according to claim 1, it is characterised in that: the interior branch
Support component includes the first inner support member (3) and the second inner support member (2)；First inner support member (3) and the second inner support member
(2) it is connected in a manner of square crossing, edge portions abut the inner wall of the inner support frame (1).
3. a kind of impact-proof structure applied to amorphous transformer according to claim 2, it is characterised in that: described first
Outer support part (9), the second outer support part (5), outer support frame (4), inner support frame (1), the first inner support member (3) and second
Inner support member (2) is made of steel plate or glass fabric.
4. a kind of impact-proof structure applied to amorphous transformer according to claim 1, it is characterised in that: the pair of
Outer support frame (4) is respectively sleeved at the periphery of the forward and backward iron yoke of entire core portion, the second outer support part (5) setting
Support is formed in the outer support frame (4).
5. a kind of impact-proof structure applied to amorphous transformer according to claim 1, it is characterised in that: the upper folder
One upper right angle fixing piece (18) are respectively set in the dogleg section at the left and right both ends of plate (6), the upper right angle fixing piece (18)
Vertical portion is connect with the dogleg section at the left and right both ends of the upper clamp plate (6), and horizontal component is provided with for the drawing screw rod
(10) horizontal component of the connecting hole passed through, the upper right angle fixing piece (18) forms pressure to the top surface of the upper holder block (11)
Tightly；
A lower right angle fixing piece (19), the lower right angle is respectively set in the dogleg section at the left and right both ends of the lower clamp plate (7)
The vertical portion of fixing piece (19) is connect with the dogleg section at the left and right both ends of the upper clamp plate (6), and horizontal component is provided with
For the connecting hole that drawing screw rod (10) passes through, the horizontal component of the lower right angle fixing piece (19) is to the lower lock block (12)
Bottom surface, which is formed, to be compressed.
6. a kind of impact-proof structure applied to amorphous transformer according to claim 1, it is characterised in that: the side folder
The dogleg section at the left and right both ends of plate (8) is respectively perpendicular two fixing pieces (17) of setting, the bending of the upper and lower plywoods (6,7)
Partial end is respectively arranged with the connecting plate (20) of the corresponding fixing piece (17), the fixing piece (17) and the connecting plate
(20) connecting hole passed through for first bolt (21) is provided on.
7. a kind of impact-proof structure applied to amorphous transformer according to claim 1, it is characterised in that: the upper folder
It is additionally provided in the dogleg section of plate (6) several lifting lugs (22), lifting lug (22) is connected to the upper folder by the second bolt (23)
On plate (6).
8. a kind of impact-proof structure applied to amorphous transformer according to claim 1, it is characterised in that: the drawing spiral shell
The shaft of bar (10) is set in the gap between adjacent winding (24).
9. a kind of impact-proof structure applied to amorphous transformer according to claim 1, it is characterised in that: described first
Outer support part (9) and the second outer support part (5) are aligned with the central axis of the inner support frame (1) respectively.
10. a kind of transformer, including core portion and windings section, the winding (24) in windings section is wrapped in the iron core portion
The periphery of correspondence stem (25) in point, it is characterised in that: further include that one kind as described in any one of claim 1 to 9 is applied to
The impact-proof structure of amorphous transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920169595.1U CN209607547U (en) | 2019-01-31 | 2019-01-31 | A kind of impact-proof structure and transformer applied to amorphous transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920169595.1U CN209607547U (en) | 2019-01-31 | 2019-01-31 | A kind of impact-proof structure and transformer applied to amorphous transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209607547U true CN209607547U (en) | 2019-11-08 |
Family
ID=68402951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920169595.1U Expired - Fee Related CN209607547U (en) | 2019-01-31 | 2019-01-31 | A kind of impact-proof structure and transformer applied to amorphous transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209607547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786068A (en) * | 2019-01-31 | 2019-05-21 | 上海置信电气非晶有限公司 | A kind of shock resistance support construction and transformer applied to amorphous plane reeling iron core body |
-
2019
- 2019-01-31 CN CN201920169595.1U patent/CN209607547U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109786068A (en) * | 2019-01-31 | 2019-05-21 | 上海置信电气非晶有限公司 | A kind of shock resistance support construction and transformer applied to amorphous plane reeling iron core body |
| CN109786068B (en) * | 2019-01-31 | 2024-04-16 | 上海置信电气非晶有限公司 | Impact-resistant supporting structure applied to amorphous planar coiled iron core body and transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209607547U (en) | A kind of impact-proof structure and transformer applied to amorphous transformer | |
| CN208461642U (en) | A kind of bus automobile motor rotor packer | |
| CN103400683A (en) | Iron core electric reactor iron yoke clamping structure | |
| CN109680873A (en) | A kind of assembled support cylinder and its construction method | |
| CN205637783U (en) | Welding type pole reinforcing apparatus | |
| CN111608464A (en) | Device and method for reinforcing tower legs of power transmission tower | |
| CN203444927U (en) | Iron core electric reactor iron yoke clamping structure | |
| CN207160264U (en) | The bean column node of frame structure | |
| CN109786068A (en) | A kind of shock resistance support construction and transformer applied to amorphous plane reeling iron core body | |
| CN201323127Y (en) | Amorphous alloy transformer | |
| CN208236003U (en) | A kind of tool for replacing grid node | |
| CN216250411U (en) | Dustproof power capacitor grounding structure of moving away to avoid possible earthquakes | |
| CN202831765U (en) | Hinged cross arm rush repair tower | |
| CN104934197A (en) | Clamping and noise reducing structure for epoxy cast dry-type transformer core | |
| CN209114732U (en) | A kind of building iron connection structure | |
| CN206396896U (en) | A kind of unit assembled cover plate connecting bolt ball node of six bar tetrahedral modules | |
| WO2021249524A1 (en) | Electric motor supporting device and electric motor assembly | |
| CN103758025A (en) | Road crossing device for power grid construction | |
| CN109817434B (en) | Amorphous alloy transformer and winding assembly thereof | |
| CN209465599U (en) | Bar bending spanner | |
| CN106759889A (en) | Beam column | |
| CN210508614U (en) | Y-shaped tower | |
| CN217182019U (en) | High strength condenser installation box | |
| CN207558557U (en) | A kind of amorphous alloy transformer body structure for having anti-short circuit capability | |
| CN217036284U (en) | Commutator copper row positioning structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191108 Termination date: 20200131 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |