CN208903813U - Transformer and its raising seat, plug unit and conductor adapting piece - Google Patents
Transformer and its raising seat, plug unit and conductor adapting piece Download PDFInfo
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- CN208903813U CN208903813U CN201821354039.3U CN201821354039U CN208903813U CN 208903813 U CN208903813 U CN 208903813U CN 201821354039 U CN201821354039 U CN 201821354039U CN 208903813 U CN208903813 U CN 208903813U
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- transformer
- conductor connector
- flange
- sleeve pipe
- described sleeve
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Abstract
The utility model relates to transformer conductor connectors, and plug unit, and power transformer enclosure and transformer using this transformer plug unit using the transformer of this transformer conductor connector.This transformer conductor connector includes a cylindric connector ontology, one first end that can be connect with the inner lead, with a second end that can be opposite with described sleeve pipe, and the circle side between the first end and the second end, wherein, the outer of the first end has chamfering, the chamfering in arc-shaped and extends to the side from the first end, the outer of second end is equipped with the flange axially projecting towards described sleeve pipe, the flange is annular in shape, and its surface is arc-shaped, its extension of radial outside wall as the side, the connector ontology and the contact surface of described sleeve pipe are located at the inner radial of the flange.
Description
Technical field
The utility model relates to transformer conductor connectors.In addition, the utility model further relates to lead using this transformer
The transformer of body connector plugs unit, and power transformer enclosure and transformer using this transformer plug unit.
Background technique
In transformer, plug unit lead inner connecting way usually use with the matched copper sheet in casing tail portion, such as
Shown in Fig. 1, the copper sheet (100) of same diameter is bolted on casing tail portion (300), around this connection structure because
Often there is very high electric field strength for high current, be especially easy to produce office in the position that the local field strengths such as edge corner angle are concentrated
Portion's electric discharge or breakdown, so as to cause failure generation.In order to ensure the reliability service of transformer, it usually needs installation plug is single
The power transformer enclosure of member is designed to the diameter for having sufficiently large, so that the distance between shell (400) and electrode are increased, to hold
Receive more dielectrics, in the case where industrial frequency withstand voltage is 230kv, diameter needs to be greater than 550mm, and industrial frequency withstand voltage is
In the case where 270kv, diameter needs 600mm or more.Volume, the weight for so not only increasing product entirety, also improve into
This.
Simultaneously as copper sheet (100) and casing tail portion (300) are bolted, the bolt head (110) protruded outside is past
Toward the position concentrated as another place's field strength, needs to be equipped with shielding cap (120) to each bolt, further increase that structure is complicated
Degree also improves material cost, time cost and the control cost of production installation.
Utility model content
The purpose of this utility model is to provide one kind for connecting a casing and an inner lead in transformer
Transformer conductor connector, its own have the function of good dispersion electric field strength and meanwhile also have good shielding function
Can, so that the diameter of power transformer enclosure may be reduced.This transformer conductor connector includes a cylindric connection
Part ontology, a first end that can be connect with the inner lead and a second end that can be opposite with described sleeve pipe, Yi Jiwei
A circle side between the first end and the second end, wherein the outer of the first end has chamfering, the chamfering
The side is extended in arc-shaped and from the first end.Chamfering has the function of dispersing electric field strength, to avoid field strength
The generation of shelf depreciation and punch-through caused by assembling.
The outer of the one aspect of transformer conductor connector according to the utility model, the second end is equipped with towards institute
Casing axially flange outstanding is stated, the flange is annular in shape, and its surface is arc-shaped, and radial with an axially extending circle
Inner sidewall and one circle radial outside wall, extension of the radial outside wall as the side, the connector ontology with it is described
The contact surface of casing is located at the inner radial of the flange.Flange is as shielded layer, it is possible to prevente effectively from the electric field at contact surface
Assemble the influence generated.
The another aspect of transformer conductor connector according to the utility model, the flange portion covering described sleeve pipe
Side wall, there are gaps between the radially inner side wall and the side wall of described sleeve pipe.
Transformer conductor connector according to the utility model in another aspect, the chamfering of the connector ontology, side,
Flange exterior surface is all covered with the insulating layer that can choose as insulating paper.
The another aspect of transformer conductor connector according to the utility model, the connector ontology, which is equipped with, is used for spiral shell
At least two fixed axial screw holes of bolt, the screw hole extend to the second end from the first end, and close to described the
There is diameter to be greater than the section of bolt head for accommodating the bolt head for the part of one end.
The purpose of this utility model, which also resides in, provides a kind of transformer plug unit, including an inner lead, a set
Pipe and an above-mentioned transformer conductor connector, the inner lead are fixedly connected by the connector with described sleeve pipe, and three
Person is in coaxially arranged.
The purpose of this utility model, which is furthermore that, provides a kind of power transformer enclosure, including raising seat shell body and sets
It sets in the raising seat shell intracorporal one above-mentioned transformer plug unit, the raising seat shell body has circular cylindrical cavity, institute
The geometrical axis that transformer plug unit is stated along the cavity is arranged, wherein the raising seat shell body has less than 500 millimeters
Diameter.
The purpose of this utility model, which is furthermore that, provides a kind of transformer comprising above-mentioned transformer plugs unit
And/or above-mentioned power transformer enclosure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of transformer plug unit in the prior art；
Fig. 2 a and 2b are the stereoscopic schematic diagrams of transformer conductor connector according to the present utility model；
Fig. 3 is the schematic diagram after the cladding insulating paper of transformer conductor connector according to the present utility model；
Fig. 4 is the stereoscopic schematic diagram of transformer plug unit according to the present utility model；
Fig. 5 is the schematic cross-section of transformer plug unit according to the present utility model；
Fig. 6 is the stereoscopic schematic diagram of power transformer enclosure according to the present utility model.
Label declaration
100 copper sheets
110 bolt heads
120 shielding caps
300 casing tail portions
400 shells
1 transformer conductor connector
2 inner leads
3 casings
4 increase seat shell body
11 connector ontologies
12 first ends
13 second ends
14 sides
15 chamferings
16 flanges
17 radially inner side walls
18 contact surfaces
19 screw holes
20 insulating layers
Specific embodiment
Below in conjunction with attached drawing, specific embodiment of the present utility model is illustrated.
The transformer conductor connector 1 of the utility model includes connector ontology 11 and axially opposing first end 12 and the
Two ends 13, Fig. 2 a and Fig. 2 b illustrate the axial ends of the transformer conductor connector 1 of the utility model preferred embodiment, such as scheme
Shown in 2a, transformer conductor connector 1 has circular arc chamfering between the first end 12 and side 14 of connection inner lead 2
15, thus along the end face to side 14 of first end 12, on arbitrary position, the transformer conductor connector 1 all have compared with
Big radius of curvature, therefore on the surface of the transformer conductor connector, especially turn from first end 12 to side 14
Angular zone, charge will not be gathered in certain parts because of the effect of field strength, be not in that electric field strength is excessive at certain positions.?
In the present embodiment, the radius of curvature value of chamfering 15 is not less than 10 millimeters, and preferable value is 12 millimeters.
As shown in Fig. 2 b and Fig. 5, transformer conductor connector has axially projecting in the second end 13 opposite with casing
Flange 16, being compared to copper sheet in the prior art has with the matched diameter in casing tail portion, transformer in the present embodiment
Conductor adapting piece has than casing tail portion slightly larger diameter, and by 13 collar flanges 16 surround in second end part and casing tail
Portion 3 has matched diameter, therefore, as shown in figure 5, after transformer conductor connector and casing are fixed to each other, the two
Mating surface 103 is enclosed within the flange 16, and there are gaps between the radially inner side wall 17 and sleeve side walls of flange 16.Cooperation
Face cannot introduce chamfering to avoid the generation of electric field strength aggregate site, so contacting since it is desired that consideration contact surface matching
The cell-edge in face 18 is higher than other parts.And in the present embodiment, annular flange 16 is covered on contact surface 18 with a gap
Radial outside, play the role of shielded layer so that the high field at contact surface edge is blocked, avoid shelf depreciation and
Punch-through.Equally, in order to avoid field strength concentration itself occurs in flange 16,16 appearance of flange is arc-shaped.
Again as shown in Figure 2 a, the transformer conductor connector in the present embodiment has 4 screw holes 19, for solid by bolt
It is scheduled on the tail portion of casing 3, bolt from first end 12 penetrates into second end 13 and by the tail of transformer conductor connector 1 and casing 3
Portion is fastenedly connected, and at the first end of screw hole 19, the section of bolt head is greater than with diameter, depth is slightly larger than the axis of bolt head
To size.When bolt is tightened, bolt head is integrally trapped in the inside of transformer conductor connector 1, appoints so avoiding
What stretches out the protrusion outside connector, and bolt head is limited due to structure and function, it is necessary to have some shape and structures will lead to
Field strength is concentrated, and the whole part that these field strength can be made to concentrate that is trapped in inside transformer conductor connector is by transformer conductor
The shielding of connector also eliminates the necessity as added shielding cap to bolt in the prior art.
As shown in figure 3, in another preferred embodiment of the utility model, on transformer conductor connector in first end 12
Chamfering 15, the flange 16 on side 14 and second end 13 is all covered by insulating layer 20, to further increase shield effectiveness
And insulation effect.Insulating layer 20 in the present embodiment uses insulating paper, and other various insulating layers can equally be substituted
Selection.
Another embodiment of the utility model is as shown in Figure 4 and Figure 5, and transformer, which plugs unit, to be had in previous embodiment
Transformer conductor connector 1 connects transformer conductor connector first end 12 and the face of inner lead 2 from side to view
The rib or angle, casing 3 and transformer for not being easy to cause field strength to concentrate to the transformer conductor connector second end 13 of casing
The contact surface 18 of conductor adapting piece 1 is blocked completely by flange 16, and there are gap, shapes between the side wall of casing 3 and flange 16
At shielding, meanwhile, 1 first end 12 of transformer conductor connector does not see fixing bolt from side to visual angle completely.
The another embodiment of the utility model is as shown in fig. 6, transformer plug unit is located at the shell 4 of power transformer enclosure
Within, dielectric is filled in shell, plug unit is located at the geometrical axis position for increasing and hitting exactly in seat shell body 4.Because of transformation
The chamfering and shielding design of device conductor adapting piece, under the conditions of same industrial frequency withstand voltage, 4 diameter of shell for increasing seat can subtract
Small, when industrial frequency withstand voltage is 230kv, the diameter for increasing seat shell body can be 450mm or so, and industrial frequency withstand voltage is 270kv
When, diameter can be 500mm or so.
It is discussed in detail although the content of the utility model has passed through above preferred embodiment, but it should be appreciated that on
The description stated is not considered as limitations of the present invention.After those skilled in the art have read above content, for
A variety of modifications and substitutions of the utility model all will be apparent.Therefore, the protection scope of the utility model should be by appended
Claim limit.In addition, any reference signs in the claims should not be construed as limiting the involved claims.
One word of " comprising " is not excluded for device or step unlisted in other claims or specification；The words such as " first ", " second "
It is only used to indicate names, and does not indicate any particular order.Herein, " parallel ", " vertical " etc. and non-critical number
Learn and/or geometry meaning on limitation, also include it will be appreciated by those skilled in the art that and the permissions such as make or use
Error.
Claims (10)
1. a kind of transformer conductor connector (1), for connecting a casing (3) and an inner lead (2) in transformer,
It is characterized in that, the transformer conductor connector (1) includes:
One connector ontology (11), it is cylindrical, and there is a first end that can be connect with the inner lead (2)
(12) and a second end (13) that can be opposite with described sleeve pipe (3), and between the first end and the second end
One circle side (14)；
Wherein, the outer of the first end (12) has chamfering (15), and the chamfering (15) is in arc-shaped and from the first end
(12) side (14) are extended to.
2. transformer conductor connector according to claim 1, wherein the chamfering (15) has not less than 10 millimeters
Radius of curvature.
3. transformer conductor connector according to claim 1, wherein the outer of the second end (13) is equipped with towards institute
State the axially projecting flange (16) of casing (3), annularly, and its surface is arc-shaped to the flange (16), and has axial prolong
Circle radially inner side wall (17) and a circle radial outside wall stretched, extension of the radial outside wall as the side (14),
The contact surface (18) of the connector ontology (11) and described sleeve pipe (3) is located at the inner radial of the flange (16).
4. transformer conductor connector according to claim 3, wherein flange (16) the part covering described sleeve pipe
Side wall, there are gaps between the radially inner side wall (17) and the side wall of described sleeve pipe.
5. transformer conductor connector according to claim 4, wherein the chamfering of the connector ontology, side, flange
Outer surface is all covered with insulating layer (20).
6. transformer conductor connector according to claim 5, wherein the insulating layer is insulating paper.
7. transformer conductor connector according to any one of claim 1 to 6, wherein the connector ontology (11)
At least two axial screw holes (19) fixed for bolt are equipped with, the screw hole (19) extends to institute from the first end (12)
It states second end (13), and described for accommodating in the section that there is the part close to the first end (12) diameter to be greater than bolt head
Bolt head.
8. a kind of transformer plugs unit, which is characterized in that including an inner lead (2), a casing (3) and a basis
Transformer conductor connector (1) described in claim 1 to 7, the inner lead (2) pass through the transformer conductor connector
(1) it is fixedly connected with described sleeve pipe (3), three is in coaxially arranged.
9. a kind of power transformer enclosure, which is characterized in that including a raising seat shell body (4) and be arranged in the raising seat shell body
(4) transformer according to claim 8 in plugs unit, and the raising seat shell body (4) has circular cylindrical cavity,
The transformer plug unit is arranged along the geometrical axis of the cavity, wherein the raising seat shell body (4) has less than 500 millis
The diameter of rice.
10. a kind of transformer, which is characterized in that plug unit including transformer according to claim 8 and/or wanted according to right
Seek 9 power transformer enclosure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821354039.3U CN208903813U (en) | 2018-08-21 | 2018-08-21 | Transformer and its raising seat, plug unit and conductor adapting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821354039.3U CN208903813U (en) | 2018-08-21 | 2018-08-21 | Transformer and its raising seat, plug unit and conductor adapting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208903813U true CN208903813U (en) | 2019-05-24 |
Family
ID=66569894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821354039.3U Active CN208903813U (en) | 2018-08-21 | 2018-08-21 | Transformer and its raising seat, plug unit and conductor adapting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208903813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741923A (en) * | 2018-08-21 | 2019-05-10 | 西门子变压器（武汉）有限公司 | Transformer and its raising seat, plug unit and conductor adapting piece |
-
2018
- 2018-08-21 CN CN201821354039.3U patent/CN208903813U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109741923A (en) * | 2018-08-21 | 2019-05-10 | 西门子变压器（武汉）有限公司 | Transformer and its raising seat, plug unit and conductor adapting piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 1, Jinyang Avenue, Yangluo Economic Development Zone, Xinzhou District, Wuhan, Hubei 430415 Patentee after: Siemens Energy Transformer (Wuhan) Co.,Ltd. Address before: No. 1, Jinyang Avenue, Yangluo Economic Development Zone, Xinzhou District, Wuhan, Hubei 430415 Patentee before: SIEMENS TRANSFORMER (WUHAN) CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |