CN202217559U - High-power ceramic resistor used in DC switch cabinet - Google Patents
High-power ceramic resistor used in DC switch cabinet Download PDFInfo
- Publication number
- CN202217559U CN202217559U CN2011203711026U CN201120371102U CN202217559U CN 202217559 U CN202217559 U CN 202217559U CN 2011203711026 U CN2011203711026 U CN 2011203711026U CN 201120371102 U CN201120371102 U CN 201120371102U CN 202217559 U CN202217559 U CN 202217559U
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- resistor
- switch cabinet
- power ceramic
- electrode
- ceramic resistor
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Abstract
A high-power ceramic resistor used in a DC switch cabinet relates to the technical field of resistors for line testing and used in a DC switch cabinet for rail transportation traction. The high-power ceramic resistor comprises a resistor body (1), electric poles (2) and support pieces (3); and the electric poles (2) and the support pieces (3) are mutually connected and respectively arranged at two ends of the resistor body (1). Various ceramic raw materials are ground, molded, and then calcined to circular resistor sheets with a certain diameter in high temperature; and further, based on a certain physical construction, the resistor sheets are connected in series to form a whole for the line testing according to required performance parameters. The high-power ceramic resistor provided by the utility model has the characteristics of high voltage resistance, impact resistance, no inductance, compact installation size, flexibility in both shape and assembly method, no pollution, long service life and the like.
Description
Technical field
[0001] the utility model relates to the line test resistive technologies field that is used for track traffic traction direct-current switch cabinet, is specifically related to a kind of high-power ceramic resistor of using at direct-current switch cabinet.
Background technology
As everyone knows, direct-current switch cabinet is used in the track traffic traction, need draw detection line respectively from the main bus bar side and the feeder line side of dc circuit breaker, through line test resistance, to detect busbar voltage.Because the voltage that detects reaches 1500V, the about 30A of electric current, the instantaneous energy that resistance bore is very big.And adopt traditional nickel filament resistance at present, when big load operation, caloric value is very big, can reach about 300 ℃ temperature.High temperature can reduce the job stability and the life-span of other elements on resistance itself and next door, also is a kind of potential flammable danger to some insulating material in the switch cubicle.
Summary of the invention
The purpose of the utility model provides a kind of high-power ceramic resistor of using at direct-current switch cabinet; It by multiple ceramic raw material behind grinding, die mould; Burn till the circular resistor disc of certain diameter through high temperature; Through certain mechanical structure, resistor disc performance parameter as required is connected into an integral body again, forms the complete line test resistance of a cover; It is compact to have high pressure resistant, shock resistance, no inductance, installation dimension, and flexible, pollution-free and life-span of shape and fit such as grows at characteristics.
In order to solve the existing problem of background technology, the utility model is to adopt following technical scheme: it comprises resistance body 1, electrode 2 and strutting piece 3, and the two ends of resistance body 1 are symmetrically arranged with electrode 2 and strutting piece 3 respectively, and electrode 2 is connected with strutting piece 3.
Described resistance body 1 adopts composite ceramic material to process, and has characteristics such as pollution-free, life-span length.
Described resistance body 1 forms by several resistor discs 1-1 is folded mutually, and several resistor discs 1-1 is circle.
The two poles of the earth of described resistor disc 1-1 are provided with the spraying of aluminium film, can increase the electrical and thermal conductivity performance of resistor disc 1-1.
The skin of described resistor disc 1-1 is provided with spraying insulating varnish, can improve the dielectric voltage withstand grade of resistor disc 1-1.
Described electrode 2 adopts novel disc electrode, can improve the electrical and thermal conductivity performance of resistance.
The utility model by multiple ceramic raw material behind grinding, die mould; Burn till the circular resistor disc of certain diameter through high temperature; Through certain mechanical structure, resistor disc performance parameter as required is connected into an integral body again, forms the complete line test resistance of a cover; It is compact to have high pressure resistant, shock resistance, no inductance, installation dimension, and flexible, pollution-free and life-span of shape and fit such as grows at characteristics.
Description of drawings:
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the left view of Fig. 1.
Embodiment:
With reference to Fig. 1-Fig. 2, this embodiment adopts following technical scheme: it comprises resistance body 1, electrode 2 and strutting piece 3, and the two ends of resistance body 1 are symmetrically arranged with electrode 2 and strutting piece 3 respectively, and electrode 2 is connected with strutting piece 3.
Described resistance body 1 adopts composite ceramic material to process, and has characteristics such as pollution-free, life-span length.
Described resistance body 1 forms by several resistor discs 1-1 is folded mutually, and several resistor discs 1-1 is circle.
The two poles of the earth of described resistor disc 1-1 are provided with the spraying of aluminium film, can increase the electrical and thermal conductivity performance of resistor disc 1-1.
The skin of described resistor disc 1-1 is provided with spraying insulating varnish, can improve the dielectric voltage withstand grade of resistor disc 1-1.
Described electrode 2 adopts novel disc electrode, can improve the electrical and thermal conductivity performance of resistance.
This embodiment by multiple ceramic raw material behind grinding, die mould; Burn till the circular resistor disc of certain diameter through high temperature; Through certain mechanical structure, resistor disc performance parameter as required is connected into an integral body again, forms the complete line test resistance of a cover; It is compact to have high pressure resistant, shock resistance, no inductance, installation dimension, and flexible, pollution-free and life-span of shape and fit such as grows at characteristics.
Claims (6)
1. high-power ceramic resistor of using at direct-current switch cabinet; It is characterized in that it comprises resistance body (1), electrode (2) and strutting piece (3); The two ends of resistance body (1) are symmetrically arranged with electrode (2) and strutting piece (3) respectively, and electrode (2) is connected with strutting piece (3).
2. a kind of high-power ceramic resistor of using at direct-current switch cabinet according to claim 1 is characterized in that described resistance body (1) adopts composite ceramic material to process.
3. a kind of high-power ceramic resistor of using at direct-current switch cabinet according to claim 1 it is characterized in that described resistance body (1) forms by several resistor discs (1-1) are folded mutually, and several resistor discs (1-1) is circle.
4. a kind of high-power ceramic resistor of using at direct-current switch cabinet according to claim 3 is characterized in that the two poles of the earth of described resistor disc (1-1) are provided with the spraying of aluminium film.
5. a kind of high-power ceramic resistor of using at direct-current switch cabinet according to claim 3 is characterized in that the skin of described resistor disc (1-1) is provided with spraying insulating varnish.
6. a kind of high-power ceramic resistor of using at direct-current switch cabinet according to claim 1 is characterized in that described electrode (2) adopts novel disc electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203711026U CN202217559U (en) | 2011-09-28 | 2011-09-28 | High-power ceramic resistor used in DC switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203711026U CN202217559U (en) | 2011-09-28 | 2011-09-28 | High-power ceramic resistor used in DC switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202217559U true CN202217559U (en) | 2012-05-09 |
Family
ID=46016802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203711026U Expired - Fee Related CN202217559U (en) | 2011-09-28 | 2011-09-28 | High-power ceramic resistor used in DC switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202217559U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890991A (en) * | 2012-09-14 | 2013-01-23 | 广东福德电子有限公司 | Non inductive wire wound resistor with two paint layers and preparation method for resistor |
| CN103137274A (en) * | 2013-03-05 | 2013-06-05 | 东莞市晴远电子有限公司 | High-power chip resistor |
-
2011
- 2011-09-28 CN CN2011203711026U patent/CN202217559U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102890991A (en) * | 2012-09-14 | 2013-01-23 | 广东福德电子有限公司 | Non inductive wire wound resistor with two paint layers and preparation method for resistor |
| CN102890991B (en) * | 2012-09-14 | 2015-07-15 | 广东福德电子有限公司 | Non inductive wire wound resistor with two paint layers and preparation method for resistor |
| CN103137274A (en) * | 2013-03-05 | 2013-06-05 | 东莞市晴远电子有限公司 | High-power chip resistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120509 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |