CN207165337U - A kind of and wind power resistor of ground wire stable insulation - Google Patents
A kind of and wind power resistor of ground wire stable insulation Download PDFInfo
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- CN207165337U CN207165337U CN201720923201.8U CN201720923201U CN207165337U CN 207165337 U CN207165337 U CN 207165337U CN 201720923201 U CN201720923201 U CN 201720923201U CN 207165337 U CN207165337 U CN 207165337U
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- boom
- side plate
- resistor
- ground wire
- separator
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Abstract
The of the present utility model a kind of and wind power resistor of ground wire stable insulation, including side plate, multiple resistor discs arranged side by side and the boom for multiple resistor discs to be stringed together, the Surface coating of boom has mica layer, and the both ends of boom are passed from the both sides of side plate so as to which resistance horse is lived；Boom is equipped with for the insulated separator for separating side plate and boom through side plate part, separator is included respectively positioned at the first insulator cap and the second insulator cap of the both sides of side plate, first insulator cap has projection along the axially extending of boom, second insulator cap is provided with the depressed part for the raised insertion, and side plate is enclosed on the outside of projection.Compared with prior art, channels separated is provided between side plate and boom, and side plate is enclosed on outside the projection of separator, therefore the double-layer insulating structure of " resistor disc mica layer boom projection side plate " is formd between resistor disc and side plate, projection will not be worn out by side plate, therefore good insulation effect can be kept between resistor disc and ground wire.
Description
Technical field
It the utility model is related to resistor technologies field, and in particular to a kind of and wind power resistor of ground wire stable insulation.
Background technology
Wind power resistor is mainly used in the low voltage crossing technology of wind power generation inverter.It is used in wind-driven generator
Rotor, for bypassing rotor current transformer, when low-voltage disturbance occurs for power network, wind power resistor can prevent that dc bus is electric
It is excessive to press through high and rotor current.Wind power resistor instantaneously can dissipate huge energy.Wind energy can as a kind of cleaning
The renewable sources of energy, increasingly paid attention to by countries in the world, wind electric converter can optimize the operation of wind generator system, realize wide
Variable speed constant frequency generator in wind speed range, improve fan efficiency and the working condition of chain, reduce generator loss, improve fortune
Line efficiency, lifts wind energy utilization, and wind power resistor is wide because of its excellent control performance and good power network adaptability
General application.
Existing wind power resistor generally comprises side plate, multiple resistor discs arranged side by side and for multiple resistor discs to be stringed together
Boom, the both ends of boom are fixed on two side plates by nut respectively.In use, side plate is connected to ground as ground wire,
Need to insulate between ground wire and resistor disc.In order to realize the insulation, prior art usually has in the Surface coating of boom
Mica layer, so as to separate resistor disc and boom.But the hole for packing into boom of resistor disc directly contacts with mica layer, is transporting
Journey or after long-term use, mica layer can wear, and cause resistor disc to be conducted with boom, and boom conducts with side plate, break
The insulation being broken between resistor disc and side plate.In order to further strengthen the insulation between side plate and resistor disc, applicant once tried
Cross and the surface mica layer for being coated on boom is extended to side plate, " resistor disc-mica is formed between such side plate and resistor disc
The double-layer insulating structure of layer-boom-mica layer-side plate ".But wind power resistor is under some extremely severe use environments,
High humidity, temperature are low, and this double-layer insulating structure can not meet to require.
The content of the invention
Above-mentioned technical problem be present for prior art, the utility model provides a kind of electric with the wind-powered electricity generation of ground wire stable insulation
Device is hindered, the resistor can ensure the insulation effect for keeping good between resistor disc and ground wire.
To achieve the above object, the utility model provides following technical scheme：
A kind of with ground wire stable insulation wind power resistor, including side plate, multiple resistor discs arranged side by side and for handle are provided
The boom that multiple resistor discs string together, the Surface coating of boom have a mica layer, the both ends of boom from the both sides of side plate pass from
And resistance horse is lived；Boom is equipped with for the insulated separator for separating side plate and boom, separator through side plate part
Including respectively be located at side plate both sides the first insulator cap and the second insulator cap, the first insulator cap along boom it is axially extending have it is convex
Rise, the second insulator cap is provided with the depressed part for the raised insertion, and side plate is enclosed on the outside of projection.
Wherein, separator is Teflon material.
Wherein, the both ends of separator are provided with the locking nut for clamping separator, and locking nut is enclosed on boom.
Wherein, mica ring is provided between the locking nut and separator, mica ring is enclosed on boom.
Wherein, resistor disc is connected with electric-conductor for conducting between polylith resistor disc, and boom string has multiple insulating parts
For the electric insulation between adjacent two pieces of resistor discs；Insulating part is extended axially by flange, resistor disc be enclosed on flange it is outer so that
Obtain and separated between resistor disc and boom by the flange.
The beneficial effects of the utility model：
The of the present utility model a kind of and wind power resistor of ground wire stable insulation, compared with prior art, due to resistor disc
Mica layer is provided between boom to separate, and channels separated is provided between side plate and boom, and side plate is enclosed on the convex of separator
Outside rising, therefore the double-layer insulating structure of " resistor disc-mica layer-boom-projection-side plate " is formd between resistor disc and side plate,
Projection is not easy worn out by side plate, therefore good insulation effect can be kept between resistor disc and ground wire.
Brief description of the drawings
Fig. 1 is a kind of and stereogram of the wind power resistor of ground wire stable insulation in embodiment.
Fig. 2 is a kind of and sectional view of the wind power resistor of ground wire stable insulation in embodiment.
Fig. 3 is the zoomed-in view at B in Fig. 2.
Reference：
Side plate 1；Resistor disc 2；
Boom 3, screw rod 31, mica layer 32；
Electric-conductor 4；
Insulating part 5, flange 51, groove 52；
Mica ring 6；
Locking nut 7；
Separator 8, the first insulator cap 81, raised 811, second insulator cap 82, depressed part 822.
Embodiment
The utility model is described in detail below in conjunction with specific embodiment and accompanying drawing.
A kind of and wind power resistor of ground wire stable insulation of the present embodiment, as shown in Figure 1 to Figure 3, including two blocks of side plates
1st, polylith resistor disc 2 arranged side by side and the boom 3 that polylith resistor disc 2 is stringed together, the both ends of boom 3 pass through locking nut 7 respectively
To be fixed on two side plates 1.Boom 3 includes screw rod 31 and is coated on the mica layer 32 of the outer surface of screw rod 31.The string of boom 3 has more
The electric insulation that individual insulating part 5 is used between adjacent two pieces of resistor discs 2, insulating part 5 are insulator either other isolation materials.Electricity
The end of resistance piece 2 is connected with electric-conductor 4 for conducting between polylith resistor disc 2.Due to the electricity between adjacent resistor piece 2
Conducting position is arranged on the end of resistor disc 2, and what boom 3 was not passed through electric-conductor 4 conducts position, conducts position away from holding
The insulating part 5 of condensation is easily formed, therefore condensation can be avoided to the electric conductivity between adjacent resistor piece 2 or to resistor disc 2
The influence of insulating properties between the external world.
As shown in figure 3, the one end of insulating part 5 is extended with flange 51, the other end is provided with the groove 52 being adapted with flange 51, convex
Edge 51 is engaged with groove 52 with so that form the mutually embedding clamping structure of convex-concave in the axial direction between two neighboring insulating part 5, electricity
It is outer so that being separated between resistor disc 2 and boom 3 by the flange 51, such resistor disc 2 and screw rod that resistance piece 2 is enclosed on flange 51
Mica layer 32, the double hyer insulation of flange 51 are formed between 31, can fully ensure the insulation between resistor disc 2 and boom 3
Performance.The locking nut at the both ends of boom 3 applies axial clamping force to insulating part 5, and each resistor disc 2 is by two adjacent insulating parts
5 clampings common in the axial direction.In practice, it diametrically can also be what is mutually pushed against between two insulating parts 5 of arbitrary neighborhood,
So that the insulating part 5 of entire row forms an entirety, so can prevent all edges of insulating part 5 during transport or use
Radial-play, Stability Analysis of Structures.
In the present embodiment, boom 3 is equipped with for the insulated separator for separating side plate 1 and boom 3 through the part of side plate 1
8, separator 8 is Teflon material, and Teflon material is more soft, is easy to fix, and its anti humility performance is high, water absorbing properties are low,
There is the performance of high insulation under high humidity environment.Separator 8 is included respectively positioned at the He of the first insulator cap 81 of the both sides of side plate 1
Second insulator cap 82, the first insulator cap 81 have projection 811 along the axially extending of boom 3, and the second insulator cap 82 is provided with and projection
811 depressed parts 822 being adapted, side plate 1 are enclosed on the outside of projection 811, and locking nut 7 also plays a part of clamping separator 8.
Mica ring 6 is provided between the locking nut 7 and separator 8, mica ring 6 is enclosed on boom 3, is played certain buffering and is made
With.Compared with prior art, due to separating between resistor disc 2 and boom 3 provided with mica layer 32, flange 51, side plate 1 and boom 3
Between separate provided with separator 8, and side plate 1 is enclosed on outside projection 811, therefore forms " resistance between resistor disc 2 and side plate 1
The three-layer insulated structure of piece 2- flange 51- mica layer 32- boom 3- projection 811- side plates 1 ", the flange 51 and separator of insulating part
Projection 811 will not be worn out by side plate 1, therefore good insulation effect can be kept between resistor disc 2 and ground wire.
Finally it should be noted that above example is only illustrating the technical solution of the utility model, rather than to this reality
With the limitation of novel protected scope, although being explained with reference to preferred embodiment to the utility model, this area it is general
It is logical it will be appreciated by the skilled person that can be modified to the technical solution of the utility model or equivalent substitution, without departing from this
The spirit and scope of utility model technical scheme.
Claims (5)
1. a kind of and ground wire stable insulation wind power resistor, it is characterized in that：Including side plate, multiple resistor discs arranged side by side and it is used for
The boom that multiple resistor discs are stringed together, the Surface coating of boom have mica layer, and the both ends of boom pass from the both sides of side plate
So as to which resistance horse is lived；Boom is equipped with for the insulated separator for separating side plate and boom through side plate part, is separated
Part includes positioned at the first insulator cap and the second insulator cap of the both sides of side plate, the first insulator cap along the axially extending of boom having respectively
Projection, the second insulator cap are provided with the depressed part for the raised insertion, and side plate is enclosed on the outside of projection.
2. the according to claim 1 a kind of and wind power resistor of ground wire stable insulation, it is characterized in that：Separator is iron fluorine
Imperial material.
3. the according to claim 1 a kind of and wind power resistor of ground wire stable insulation, it is characterized in that：The both ends of separator
Portion is provided with the locking nut for clamping separator, and locking nut is enclosed on boom.
4. the according to claim 3 a kind of and wind power resistor of ground wire stable insulation, it is characterized in that：The locking nut
Mica ring is provided between separator, mica ring is enclosed on boom.
5. the according to claim 1 a kind of and wind power resistor of ground wire stable insulation, it is characterized in that：Resistor disc is connected with
For electric-conductor for conducting between polylith resistor disc, boom string has the electricity that multiple insulating parts are used between adjacent two pieces of resistor discs
Insulation；Insulating part is extended axially by flange, and it is outer so that by described convex between resistor disc and boom that resistor disc is enclosed on flange
Edge separates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720923201.8U CN207165337U (en) | 2017-07-27 | 2017-07-27 | A kind of and wind power resistor of ground wire stable insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720923201.8U CN207165337U (en) | 2017-07-27 | 2017-07-27 | A kind of and wind power resistor of ground wire stable insulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207165337U true CN207165337U (en) | 2018-03-30 |
Family
ID=61714913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720923201.8U Active CN207165337U (en) | 2017-07-27 | 2017-07-27 | A kind of and wind power resistor of ground wire stable insulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207165337U (en) |
-
2017
- 2017-07-27 CN CN201720923201.8U patent/CN207165337U/en active Active
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