CN206274478U - A kind of secondary insulating resistor - Google Patents
A kind of secondary insulating resistor Download PDFInfo
- Publication number
- CN206274478U CN206274478U CN201621266640.8U CN201621266640U CN206274478U CN 206274478 U CN206274478 U CN 206274478U CN 201621266640 U CN201621266640 U CN 201621266640U CN 206274478 U CN206274478 U CN 206274478U
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- Prior art keywords
- shell
- boom
- mica
- resistor
- ring
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Abstract
A kind of secondary insulating resistor of the present utility model, including shell and resistance loop component, resistance loop component includes multiple resistor discs and the boom for multiple resistor discs to be stringed together arranged side by side, the both ends of boom pass resistor disc to be erected at the inside of shell from the both sides of shell, the Surface coating of boom has mica layer and mica layer extends to the outside of shell, boom is equipped with porcelain piece to separate outer casing inner wall and resistor disc, interior mica ring is provided between porcelain piece and the inwall of shell, the outside part that boom passes shell is provided with fixture for locking boom, outer mica ring is provided between fixture and the outer wall of shell.Compared with prior art, mica layer extends to boom through side wall of outer shell part, preliminary insulation is realized between shell and resistance loop component, porcelain piece and interior mica ring are also equipped between resistor disc and the inwall of shell, form again the effect of minor insulation, therefore dual insulation system, improves the insulating properties between shell and resistance loop component.
Description
Technical field
The utility model is related to resistor technologies field, and in particular to a kind of secondary insulating resistor.
Background technology
Crowbar resistors are mainly used in the low voltage crossing technology of wind power generation inverter.It sends out used in wind-force
Rotor side, for bypassing rotor-side converter, when power network occur low-voltage disturb when, prevent DC bus-bar voltage it is too high and
Rotor current is excessive.Groundwork is nonserviceabled, and damps stator magnetic linkage, and Crowbar resistors can be instantaneously huge energy
Dissipate.Wind energy is increasingly paid attention to as a kind of regenerative resource of cleaning by countries in the world, and wind electric converter can be with excellent
The operation of wind transmission force generating system, realizes the variable speed constant frequency generator in wind speed range wide, improves the work of fan efficiency and chain
Make situation, reduce generator loss, improve operational efficiency, lift wind energy utilization, wind time-dependent current device is because of its excellent controlling
Can and good power network adaptability and be widely used.The application conditions of wind-powered electricity generation Crowbar resistors are more severe, resistor
Case surface usually produce dew condensation phenomenon because humidity is larger, existing shell is relatively low with resistance loop component insulation performance,
Electrical reliability is not enough, it is impossible to meet the requirement that resistor is used in adverse circumstances.
The content of the invention
There is above-mentioned technical problem for prior art, the utility model provides a kind of raising shell and resistance loop component
Between insulating properties secondary insulating resistor.
To achieve the above object, the utility model provides following technical scheme：
A kind of secondary insulating resistor, including shell and resistance loop component are provided, resistance loop component includes arranged side by side
Multiple resistor discs and the boom for multiple resistor discs to be stringed together, the both ends of boom are passed with resistance from the both sides of shell
Piece is erected at the inside of shell, and the Surface coating of boom has mica layer and mica layer extends to the outside of shell, and boom is equipped with
Porcelain piece separates outer casing inner wall and resistor disc, and interior mica ring is provided between porcelain piece and the inwall of shell, and boom passes shell
Outside part is provided with the fixture for locking boom, and outer mica ring, interior cloud are provided between fixture and the outer wall of shell
Female ring and outer mica ring are arranged in boom.
Wherein, the fixture is nut.
Wherein, flat shim is provided between outer mica ring and fixture, flat shim is arranged in boom.
Wherein, the thickness of flat shim is 2.5 millimeters, and the thickness of interior mica ring and outer mica ring is 1.5 millimeters.
Wherein, the length range that boom passes shell is 2mm ~ 3.5mm.
Wherein, boom also go here and there insulator for making to insulate between adjacent two panels resistor disc and for make multi-disc resistor disc it
Between conducting ring in series or in parallel.
The beneficial effects of the utility model：
A kind of secondary insulating resistor of the present utility model, including shell and resistance loop component, resistance loop component bag
Multiple resistor discs and the boom for multiple resistor discs to be stringed together arranged side by side is included, the both ends of boom pass from the both sides of shell
Resistor disc is erected at the inside of shell, the Surface coating of boom has mica layer and mica layer extends to the outside of shell, string
Bar is equipped with porcelain piece to separate outer casing inner wall and resistor disc, and interior mica ring is provided between porcelain piece and the inwall of shell, and boom is worn
The fixture for locking boom is provided with place of the outside for going out shell, outer mica is provided between fixture and the outer wall of shell
Ring, interior mica ring and outer mica ring are arranged in boom.Compared with prior art, the utility model is due in the surface of boom bag
Mica layer is covered with, and mica layer extends to boom through side wall of outer shell part, so that between shell and resistance loop component
Preliminary insulation is realized by mica layer, porcelain piece and interior mica ring are also equipped between resistor disc and the inwall of shell, formed again
The effect of minor insulation, therefore dual insulation system, substantially increase the insulating properties between shell and resistance loop component.
Brief description of the drawings
Fig. 1 is a kind of stereogram of the secondary insulating resistor in embodiment.
Fig. 2 is a kind of side view of the secondary insulating resistor in embodiment.
Fig. 3 is the sectional view in G-G directions in Fig. 2.
Fig. 4 is the zoomed-in view at A in Fig. 3.
Fig. 5 is the sectional view in B-B directions in Fig. 2.
Reference：
Shell 1；
Resistor disc 2；
Boom 3；
Insulator 4；
Conducting ring 5；
Mica layer 6；
Nut 7；
Interior mica ring 8；
Outer mica ring 9；
Flat shim 10；
Porcelain piece 11.
Specific embodiment
The utility model is described in detail below in conjunction with specific embodiment and accompanying drawing.
A kind of secondary insulating resistor of the present embodiment, as shown in Figures 1 to 5, including shell 1 and resistance loop component,
Resistance loop component includes multiple resistor discs 2 and four booms 3 for multiple resistor discs 2 to be stringed together arranged side by side, four strings
Bar 3 is parallel to each other, and two of which boom 3 or so is placed and strings resistor disc 2, and two other is placed string resistor disc 2, boom up and down
3 also strings have insulator 4 for making to insulate between adjacent two panels resistor disc 2 and for making between multi-disc resistor disc 2 series connection or simultaneously
The conducting ring 5 of connection, to meet different resistance demands.The both ends of boom 3 are passed with the frame of resistor disc 2 from the both sides of shell 1
The inside of shell 1 is located at, the Surface coating of boom 3 has mica layer 6 and mica layer 6 extends to the outside of shell 1, and boom 3 wears
There is porcelain piece 11 to separate the inwall of shell 1 and resistor disc 2, interior mica ring 8, boom 3 are provided between porcelain piece 11 and the inwall of shell 1
The fixture for locking boom 3 is provided with place of the outside for passing shell 1, fixture is nut 7, and nut 7 is outer with shell 1
Outer mica ring 9 is provided between wall, interior mica ring 8 and outer mica ring 9 are arranged in boom 3.
In the present embodiment, flat shim 10 is provided between outer mica ring 9 and fixture, flat shim 10 is arranged in boom 3, spiral shell
During female 7 fixation boom 3, precession compresses flat shim 10, so as to compress outer mica ring 9 indirectly, it is to avoid nut 7 directly damages outer mica by pressure
Ring 9.
In the present embodiment, the thickness of flat shim 10 is 2.5 millimeters, and the thickness of interior mica ring 8 and outer mica ring 9 is 1.5
Millimeter.The length range that boom 3 passes shell 1 is 2mm ~ 3.5mm.
Finally it should be noted that above example is only used to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected scope, although being explained to the utility model with reference to preferred embodiment, 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, without deviating from this
The spirit and scope of utility model technical scheme.
Claims (6)
1. a kind of secondary insulating resistor, it is characterized in that：Including shell and resistance loop component, resistance loop component includes arranged side by side
Multiple resistor discs and the boom for multiple resistor discs to be stringed together, the both ends of boom are passed with electricity from the both sides of shell
Resistance piece is erected at the inside of shell, and the Surface coating of boom has mica layer and mica layer extends to the outside of shell, and boom wears
There is the porcelain piece for separating outer casing inner wall and resistor disc, interior mica ring is provided between porcelain piece and the inwall of shell, boom is passed
The outside part of shell is provided with the fixture for locking boom, and outer mica is provided between fixture and the outer wall of shell
Ring, interior mica ring and outer mica ring are arranged in boom.
2. a kind of secondary insulating resistor according to claim 1, it is characterized in that：The fixture is nut.
3. a kind of secondary insulating resistor according to claim 1, it is characterized in that：Set between outer mica ring and fixture
There is flat shim, flat shim is arranged in boom.
4. a kind of secondary insulating resistor according to claim 3, it is characterized in that：The thickness of flat shim is 2.5 millimeters, interior
The thickness of mica ring and outer mica ring is 1.5 millimeters.
5. a kind of secondary insulating resistor according to claim 1, it is characterized in that：The length range that boom passes shell is
2mm~3.5mm。
6. a kind of secondary insulating resistor according to claim 1, it is characterized in that：Boom is also gone here and there for making adjacent two panels
The insulator that is insulated between resistor disc and for making conducting ring in series or in parallel between multi-disc resistor disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621266640.8U CN206274478U (en) | 2016-11-24 | 2016-11-24 | A kind of secondary insulating resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621266640.8U CN206274478U (en) | 2016-11-24 | 2016-11-24 | A kind of secondary insulating resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206274478U true CN206274478U (en) | 2017-06-23 |
Family
ID=59063514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621266640.8U Active CN206274478U (en) | 2016-11-24 | 2016-11-24 | A kind of secondary insulating resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206274478U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571002A (en) * | 2019-10-14 | 2019-12-13 | 深圳市富临特科技有限公司 | Resistor for low voltage ride through of wind power generation inverter |
| CN113345662A (en) * | 2021-06-04 | 2021-09-03 | 巴州金富特种纱业有限公司 | High-power high-resistance special-shaped resistor |
| CN114334314A (en) * | 2021-12-06 | 2022-04-12 | 广东福德电子有限公司 | Sandwich type resistor |
-
2016
- 2016-11-24 CN CN201621266640.8U patent/CN206274478U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110571002A (en) * | 2019-10-14 | 2019-12-13 | 深圳市富临特科技有限公司 | Resistor for low voltage ride through of wind power generation inverter |
| CN113345662A (en) * | 2021-06-04 | 2021-09-03 | 巴州金富特种纱业有限公司 | High-power high-resistance special-shaped resistor |
| CN114334314A (en) * | 2021-12-06 | 2022-04-12 | 广东福德电子有限公司 | Sandwich type resistor |
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