CN208271700U - A kind of three-dimensional wound core dry type transformer low voltage lead structure - Google Patents
A kind of three-dimensional wound core dry type transformer low voltage lead structure Download PDFInfo
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- CN208271700U CN208271700U CN201821021128.6U CN201821021128U CN208271700U CN 208271700 U CN208271700 U CN 208271700U CN 201821021128 U CN201821021128 U CN 201821021128U CN 208271700 U CN208271700 U CN 208271700U
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Abstract
The utility model relates to the technical fields of transformer lead, more particularly to a kind of three-dimensional wound core dry type transformer low voltage lead structure, including by the identical iron core single frame of three sizes, spatially triangle is mutually put together, iron core single frame two-by-two vertical phase split part form stem, a is wound in the same direction respectively on each stem, b, c three-phase low-voltage coil, each phase low-voltage coil is correspondingly arranged on head, last row connection terminal, the a, b, a is respectively arranged on the winding end of c phase low-voltage coil, b, c phase low pressure first row connection terminal, the a, b, a is respectively arranged on the outboard end of c phase low-voltage coil, b, c phase low pressure last row connection terminal.The purpose of this utility model is to provide a kind of three-dimensional wound core dry type transformer low voltage lead structures, to reach transformer low voltage resistance three-phase equilibrium by designing approximate conductor length in the case where not changing connecting terminal cross-sectional area of conductor area.
Description
Technical field
The utility model relates to the technical fields of transformer lead, are concretely a kind of three-dimensional wound core dry type transformers
Low voltage lead structure.
Background technique
Traditional three-phase transformer is horizontal layout, and low-voltage wiring terminal is generally aligned in the same plane, to facilitate user Lian Xiangying
Terminal, and three-dimensional Wound iron-core transformer has overturned traditional laminated transformer core construction, iron core three due to its core construction
A iron core single frame split close to semi-circular cross-section is an entirety, and structure is spatially spatially symmetrical, in this way, for even
It connects that low-voltage wiring terminal is more inconvenient, is equally also required to use low-voltage wiring terminal is led into method on same plane with side
Just terminal block, during wiring, it should be noted that accomplishing that three-phase resistance tends to balance, according to conductor resistance calculation formula R=ρ
× L/S ρ is conductor resistance rate, and L is conductor length, and S is conductor cross-sectional area, to accomplish that three-phase resistance balances, is only passed through
Change conductor length or cross-sectional area of conductor area to realize, for save the cost, it is phase that best bet, which is by three-phase lead design,
Reach three-phase resistance balance like length.
Utility model content
The purpose of this utility model is to provide a kind of three-dimensional wound core dry type transformer low voltage lead structures, to not
Reach transformer low voltage resistance three by designing approximate conductor length in the case where change connecting terminal cross-sectional area of conductor area
It balances each other.
In order to solve the above technical problems, the utility model uses following technical scheme:
A kind of three-dimensional wound core dry type transformer low voltage lead structure, including by the identical iron core single frame of three sizes in vertical
Body triangle is mutually put together, and the part of iron core single frame vertical phase split two-by-two forms stem, is twined in the same direction on each stem respectively
It is wound with a phase low-voltage coil, b phase low-voltage coil and c phase low-voltage coil, each phase low-voltage coil is correspondingly arranged on initial and end row connecting pin
Son is provided with a phase low pressure first row connection terminal on the winding end of a phase low-voltage coil, sets on the outboard end of a phase low-voltage coil
It is equipped with a phase low pressure last row connection terminal；B phase low pressure first row connection terminal, b are provided on the winding end of the b phase low-voltage coil
B phase low pressure last row connection terminal is provided on the outboard end of phase low-voltage coil；It is provided on the winding end of the c phase low-voltage coil
C phase low pressure first row connection terminal is provided with c phase low pressure last row connection terminal on the outboard end of c phase low-voltage coil.
Further technical solution is, a phase low pressure first row connection terminal and c phase low pressure first row connection terminal edge respectively
The top of iron core single frame between a phase low-voltage coil and c phase low-voltage coil is vertically drawn, the b phase low pressure first row connection terminal
It vertically draws the top of iron core single frame between b phase low-voltage coil and c phase low-voltage coil.
Further technical solution is that toroidal frame, a phase are provided in the iron core frame of the three-dimensional wound core dry type transformer
Low pressure last row connection terminal, b phase low pressure last row connection terminal and c phase low pressure last row connection terminal are vertically connected on and toroidal frame phase
The side answered.
Further technical solution is that zero phase of low pressure row's connection terminal is connected on the toroidal frame, and zero phase of low pressure row connects
Connecting terminal and the upper surface of b phase low pressure first row connection terminal are coplanar and parallel.
Further technical solution is that zero phase of the low pressure row connection terminal is placed in a left side for b phase low pressure first row connection terminal
Face and close a phase low-voltage coil side.
Further technical solution is that first row connection terminal and zero phase of low pressure of each phase low-voltage coil arrange connection terminal
It is arranged on same vertical side.
Compared with prior art, the beneficial effects of the utility model are at least one of following:
The utility model is by keeping the low-voltage coil of three-dimensional wound core dry type transformer around to consistent, by three-phase low-voltage
First row connection terminal is set on the winding end of coil, last row connection terminal is set on outboard end so that a phase low-voltage coil around
Relatively in addition the two is then set by the way that zero phase of low pressure is arranged connection terminal close to a phase low-voltage coil copper (aluminium) foil of system mostly around 1/3 circle
It sets, to increase the leads of b, c low-voltage coil, flows through path to reach three-phase low-voltage electric current and reach unanimity, to make three
The closer balance of phase resistance.
The utility model in iron core frame by being arranged toroidal frame, to ensure that the low pressure last row of three-phase low-voltage coil connects
Terminal can be connected to toroidal frame with equal length, then connection terminal be arranged by drawing zero phase of low pressure on toroidal frame, to most
Short conductor length realizes that the electric current optimized flows through path and makes up, and has both achieved the purpose that make three-phase resistance close to balance, together
When also a save cost.
Detailed description of the invention
Fig. 1 is the iron core stereoscopic schematic diagram of three-dimensional wound core dry type transformer；
Fig. 2 is the utility model low voltage lead structure top view；
Fig. 3 is the utility model low voltage lead structure front view.
Description of symbols: 1- iron core single frame, 2- stem, 3-a phase low-voltage coil, 31-a phase low pressure first row connection terminal,
32-a phase low pressure last row connection terminal, 4-b phase low-voltage coil, 41-b phase low pressure first row connection terminal, 42-b phase low pressure last row connect
Connecting terminal, 5-c phase low-voltage coil, 51-c phase low pressure first row connection terminal, 52-c phase low pressure last row connection terminal, 6- toroidal frame,
Zero phase of 7- low pressure arranges connection terminal.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail, it should be understood that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Shown in referring to figs. 1 to Fig. 3, one embodiment of the present embodiment is that a kind of three-dimensional wound core dry type transformer is low
Voltage lead wires structure, including spatially triangle is mutually put together by the identical iron core single frame 1 of three sizes, 1 liang of iron core single frame
The part of two vertical phase splits forms stem 2, is wound with a phase low-voltage coil 3, b phase low-voltage coil 4 in the same direction respectively on each stem 2
With c phase low-voltage coil 5, each phase low-voltage coil is correspondingly arranged on initial and end row's connection terminal, the winding end of a phase low-voltage coil 3
On be provided with a phase low pressure first row connection terminal 31, a phase low pressure last row connection terminal is provided on the outboard end of a phase low-voltage coil
32；B phase low pressure first row connection terminal 41, the outboard end of b phase low-voltage coil 4 are provided on the winding end of the b phase low-voltage coil 4
On be provided with b phase low pressure last row connection terminal 42；The connection of c phase low pressure first row is provided on the winding end of the c phase low-voltage coil 5
Terminal 51 is provided with c phase low pressure last row connection terminal 52 on the outboard end of c phase low-voltage coil 5.The purpose of this design is, leads to
Initial and end row's connection terminal that each phase low-voltage coil is directly set on the winding end of each phase low-voltage coil and outboard end is crossed, is convenient for
Difficult to find position when people's wiring is not susceptible to misconnection phenomenon, and connects in this manner, further ensures that a phase low-voltage coil 3
Both in addition copper (aluminium) foil of coiling is relatively mostly around 1/3 circle, to reach below by adjusting the leads of each phase low-voltage coil
To the purpose of resistance balance.
According to above-described embodiment, another embodiment of the utility model is, a phase low pressure first row connection terminal 31 with
The top of the iron core single frame 1 between a phase low-voltage coil 3 and c phase low-voltage coil 5 respectively of c phase low pressure first row connection terminal 51 is perpendicular
To extraction, iron core single frame 1 of the b phase low pressure first row connection terminal 41 between b phase low-voltage coil 4 and c phase low-voltage coil 5
It vertically draws top.The purpose of this design, which is to ensure that, is arranged with least copper (aluminium) by the first row connection terminal of three-phase low-voltage coil
It draws respectively.
According to first embodiment, another embodiment of the utility model is, the three-dimensional wound core dry type transformer
Toroidal frame 6, a phase low pressure last row connection terminal 32, b phase low pressure last row connection terminal 42 and c phase low pressure tail are provided in iron core frame
Row's connection terminal 52 is vertically connected on side corresponding with toroidal frame 6.The purpose of this design is, by being arranged in iron core frame
Toroidal frame 6 ensures the last row connection terminal of each low-voltage coil to realize with minimum cost using shortest copper (aluminium) row
It is equidistantly connected in toroidal frame 6, in order to avoid generating different copper (aluminium) arranges length difference, is unfavorable for concentrating adjustment below.
According to above-described embodiment, new one embodiment of the utility model is that zero phase of low pressure is connected on the toroidal frame 6
Connection terminal 7 is arranged, zero phase of low pressure arranges connection terminal 7 and the upper surface of b phase low pressure first row connection terminal 41 is coplanar and parallel.This sets
The purpose of meter is to make each connection terminal to concentrate as far as possible in the same plane, the convenient electric current for intuitively observing each phase low-voltage coil
Path is flowed through, and by the way that zero phase of low pressure row's connection terminal 7 and b phase low pressure first row connection terminal 41 is placed in same plane, it can be true
While the electric current that guarantor is not further added by b phase low pressure first row connection terminal 41 flows through path, the connection of c phase low pressure first row is further supplemented
A part of path that terminal 51 is less than.
According to above-described embodiment, a further embodiment of the utility model is that zero phase of the low pressure row connection terminal 7 is set
In the left side of b phase low pressure first row connection terminal 41 and close to the side of a phase low-voltage coil 3.
The purpose of this design is that the electric current that connection terminal is arranged by increasing b, c phase initial and end flows through path to make up than a phase
Low-voltage coil 3 winds copper (aluminium) foil of 1/3 circle less, realizes three-phase low-voltage resistance balance to change to greatest extent.
According to first embodiment, another embodiment of the utility model is the first row connection of each phase low-voltage coil
Terminal is arranged on same vertical side with zero phase of low pressure row's connection terminal 7.The purpose of this design is that user is facilitated directly to connect
Each terminal is connect, simultaneously as being on same vertical side, the mode that support rod or connecting plate can also be arranged is used for each end
The concentration of son is fixed.
The utility model is by keeping the low-voltage coil of three-dimensional wound core dry type transformer around to consistent, by a, b, c tri-
A phase low pressure first row connection terminal 31, b phase low pressure first row connection terminal 41 and c phase are respectively set on the winding end of phase low-voltage coil
A phase low pressure last row connection terminal will be respectively set in low pressure first row connection terminal 51 on the outboard end of a, b, c three-phase low-voltage coil
32, b phase low pressure last row connection terminal 42 and c phase low pressure last row connection terminal 542, so that the copper of 3 coiling of a phase low-voltage coil
Relatively in addition the two is then arranged by the way that zero phase of low pressure is arranged connection terminal 7 close to a phase low-voltage coil 3 (aluminium) foil mostly around 1/3 circle,
To increase the leads of b phase low-voltage coil 4 and c phase low-voltage coil 5, path is flowed through to reach three-phase low-voltage electric current and tends to one
It causes, to make three-phase resistance closer to balance.
The utility model in the iron core frame of three-dimensional wound core dry type transformer by being arranged toroidal frame 6, to ensure three
The low pressure last row connection terminal 4 of phase low-voltage coil can be connected to toroidal frame 6 with equal length, then by drawing on toroidal frame 6
Zero phase of low pressure arranges connection terminal 7 out, realizes that the electric current optimized flows through path and makes up to shortest conductor length, both reached
Make three-phase resistance close to the purpose of balance, while also ing save cost.
Although reference be made herein to the utility model is described in multiple explanatory embodiments of the utility model, still,
It should be understood that those skilled in the art can be designed that a lot of other modification and implementations, these modifications and implementations
It will fall within scope and spirit disclosed in the present application.More specifically, it discloses in the application, drawings and claims
In range, can building block to theme combination layout and/or layout carry out a variety of variations and modifications.In addition to building block
And/or outside the modification and improvement of layout progress, to those skilled in the art, other purposes also be will be apparent.
Claims (6)
1. a kind of three-dimensional wound core dry type transformer low voltage lead structure, including be in by the identical iron core single frame (1) of three sizes
3-D triangle is put together, and the part of iron core single frame (1) vertical phase split two-by-two forms stem (2), on each stem (2) respectively
It is wound with a phase low-voltage coil (3), b phase low-voltage coil (4) and c phase low-voltage coil (5) in the same direction, each phase low-voltage coil is correspondingly arranged
There is initial and end to arrange connection terminal, it is characterised in that:
A phase low pressure first row connection terminal (31), a phase low-voltage coil (3) are provided on the winding end of a phase low-voltage coil (3)
Outboard end on be provided with a phase low pressure last row connection terminal (32)；
B phase low pressure first row connection terminal (41), b phase low-voltage coil (4) are provided on the winding end of the b phase low-voltage coil (4)
Outboard end on be provided with b phase low pressure last row connection terminal (42)；
C phase low pressure first row connection terminal (51), c phase low-voltage coil (5) are provided on the winding end of the c phase low-voltage coil (5)
Outboard end on be provided with c phase low pressure last row connection terminal (52).
2. a kind of three-dimensional wound core dry type transformer low voltage lead structure according to claim 1, it is characterised in that: described
A phase low pressure first row connection terminal (31) is with c phase low pressure first row connection terminal (51) respectively along a phase low-voltage coil (3) and c phase low pressure
The top of iron core single frame (1) between coil (5) is vertically drawn, and the b phase low pressure first row connection terminal (41) is along b phase low-voltage line
It vertically draws the top of iron core single frame (1) between circle (4) and c phase low-voltage coil (5).
3. a kind of three-dimensional wound core dry type transformer low voltage lead structure according to claim 1, it is characterised in that: described
It is provided in the iron core frame of three-dimensional wound core dry type transformer toroidal frame (6), a phase low pressure last row connection terminal (32), b phase low pressure
Last row connection terminal (42) and c phase low pressure last row connection terminal (52) are vertically connected on side corresponding with toroidal frame (6).
4. a kind of three-dimensional wound core dry type transformer low voltage lead structure according to claim 3, it is characterised in that: described
Zero phase of low pressure row connection terminal (7) is connected on toroidal frame (6), zero phase of low pressure row connection terminal (7) connect with b phase low pressure first row
The upper surface of terminal (41) is coplanar and parallel.
5. a kind of three-dimensional wound core dry type transformer low voltage lead structure according to claim 1, it is characterised in that: described
Zero phase of low pressure row connection terminal (7) is placed in the left side of b phase low pressure first row connection terminal (41) and close to a phase low-voltage coil (3)
Side.
6. special according to claim 1 to a kind of three-dimensional wound core dry type transformer low voltage lead structure described in 5 any one
Sign is: the first row connection terminal of each phase low-voltage coil is arranged with zero phase of low pressure row connection terminal (7) in same vertical side
On face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821021128.6U CN208271700U (en) | 2018-06-29 | 2018-06-29 | A kind of three-dimensional wound core dry type transformer low voltage lead structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821021128.6U CN208271700U (en) | 2018-06-29 | 2018-06-29 | A kind of three-dimensional wound core dry type transformer low voltage lead structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208271700U true CN208271700U (en) | 2018-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821021128.6U Active CN208271700U (en) | 2018-06-29 | 2018-06-29 | A kind of three-dimensional wound core dry type transformer low voltage lead structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208271700U (en) |
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2018
- 2018-06-29 CN CN201821021128.6U patent/CN208271700U/en active Active
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