CN2227868Y - Pressure sensitive resistor for protection of electric locomotive - Google Patents
Pressure sensitive resistor for protection of electric locomotive Download PDFInfo
- Publication number
- CN2227868Y CN2227868Y CN 94218774 CN94218774U CN2227868Y CN 2227868 Y CN2227868 Y CN 2227868Y CN 94218774 CN94218774 CN 94218774 CN 94218774 U CN94218774 U CN 94218774U CN 2227868 Y CN2227868 Y CN 2227868Y
- Authority
- CN
- China
- Prior art keywords
- top cover
- electric locomotive
- protection
- pressure sensitive
- sensitive resistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Thermistors And Varistors (AREA)
Abstract
The utility model relates to a pressure sensitive resistor for the protection of an electric locomotive, which is the pressure sensitive resistor for the protection of the electric locomotive and has the advantages of small volume, sensitivity, reliability, and convenient use for a filleting system and a motor system of an electric locomotive having large protecting volume for resistance-capacity and poor reliability. The utility model is characterized in that the left end and right end of an insulation casing are respectively provided a top cap with screw thread. The inside of the insulation cover is provided with quincunx spacer, springs, a quincunx spacer, a zinc oxide valve plate, and a quincunx spacer in sequence from the left top cover to the right top cover. The top cover is provided with electrode holes and installation holes.
Description
The utility model relates to a kind of electric locomotive protection varistor.
Present electric locomotive rectification and electric system adopt resistance-capacitance protection, and volume is big, and poor reliability often burns out equipment, influences the normal operation of electric locomotive.
It is little that the purpose of this utility model provides a kind of volume, highly sensitive, safe and reliable electric locomotive protection varistor.
The utility model is respectively to establish a threaded top cover at the two ends, the left and right sides of an insulation crust, in insulation crust from left top cover to being provided with plum blossom pad, spring plum blossom pad, zinc oxide valve plate, plum blossom pad the right top cover successively, respectively be provided with external electrode hole and installing hole on the left and right top cover and constitute.
The utility model advantage is highly sensitive, safe and reliable, and cost is low, and is easy to use.
Description of drawings:
Accompanying drawing is the utility model overall structure schematic diagram.
Among the figure, be insulation crust, the 2, the 3rd, top cover, the 4, the 5th, screw thread, the 6, the 7th, radiating groove, the 8, the 9th, electrode hole, the 10, the 11st, screw thread, the 12,13,14, the 15th, installing hole, the 16th, zinc oxide valve plate, the 17th, spring, the 18,19, the 20th, plum blossom pad.
The utility model is described in further detail with specific embodiment below in conjunction with accompanying drawing:
(1) is the glass insulation shell among the figure, to be threaded top cover (3) precession shell (1) left end of (5), the top cover of threaded (4) (2) precession shell (1) right-hand member, the centre of top cover (3) left surface is provided with the electrode hole (8) and the installing hole (14) (15) of threaded (10), be provided with the electrode hole (9) and the installing hole (12) (13) of threaded (11) in the middle of the right surface of top cover (2), from the left surface of top cover (2) to the right surface of top cover (3), be provided with plum blossom pad (20) successively, zinc oxide valve plate (16), plum blossom pad (19), spring (17), plum blossom pad (18).
Claims (1)
1; a kind of electric locomotive protection varistor; it is by insulation crust (1); top cover (2) (3); plum blossom pad (18) (19) (20); zinc oxide valve plate (16); spring (17) constitutes; the two ends, the left and right sides that it is characterized in that insulation crust (1) respectively are provided with screw thread (5) (4); on screw thread (5), be rotary with belt electrode hole (8); the top cover (3) of installing hole (14) (15); on screw thread (4), be rotary with belt electrode hole (9); the top cover (2) of installing hole (12) (13); be provided with plum blossom pad (20) successively in the insulation crust (1) between top cover (2) (3); zinc oxide valve plate (16); plum blossom pad (19); spring (17), plum blossom pad (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94218774 CN2227868Y (en) | 1994-08-09 | 1994-08-09 | Pressure sensitive resistor for protection of electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94218774 CN2227868Y (en) | 1994-08-09 | 1994-08-09 | Pressure sensitive resistor for protection of electric locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2227868Y true CN2227868Y (en) | 1996-05-22 |
Family
ID=33833863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94218774 Expired - Fee Related CN2227868Y (en) | 1994-08-09 | 1994-08-09 | Pressure sensitive resistor for protection of electric locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2227868Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825986A (en) * | 2016-05-12 | 2016-08-03 | 安徽尚途电力保护设备有限公司 | Outdoor alternating-current anti-explosion 35-kV lightning arrester |
| CN107564639A (en) * | 2017-09-06 | 2018-01-09 | 广西新未来信息产业股份有限公司 | A kind of portable unit with thermal protection piezoresistor |
-
1994
- 1994-08-09 CN CN 94218774 patent/CN2227868Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825986A (en) * | 2016-05-12 | 2016-08-03 | 安徽尚途电力保护设备有限公司 | Outdoor alternating-current anti-explosion 35-kV lightning arrester |
| CN107564639A (en) * | 2017-09-06 | 2018-01-09 | 广西新未来信息产业股份有限公司 | A kind of portable unit with thermal protection piezoresistor |
| CN107564639B (en) * | 2017-09-06 | 2018-10-16 | 广西新未来信息产业股份有限公司 | A kind of portable unit with thermal protection piezoresistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |