CN204407070U - A kind of thermal resistance self-shield cable and comprise the power supply self-protecting device of described cable - Google Patents
A kind of thermal resistance self-shield cable and comprise the power supply self-protecting device of described cable Download PDFInfo
- Publication number
- CN204407070U CN204407070U CN201520090998.9U CN201520090998U CN204407070U CN 204407070 U CN204407070 U CN 204407070U CN 201520090998 U CN201520090998 U CN 201520090998U CN 204407070 U CN204407070 U CN 204407070U
- Authority
- CN
- China
- Prior art keywords
- cable
- layer
- power line
- temperature
- course
- 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
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a kind of thermal resistance self-shield cable and comprise the power supply self-protecting device of described cable; thermal resistance self-shield cable comprises the temperature-sensitive key-course and power line layer that set gradually from inside to outside; described temperature-sensitive key-course comprises copper conductor layer, thermal resistor layer, heat-conducting insulating silicon rubber layer from inside to outside successively; described copper conductor layer comprises two copper conductors be parallel to each other, and power line layer is arranged on heat-conducting insulating silicon rubber layer outer surface.The utility model places temperature-sensitive key-course at active force cable core center, temperature-sensitive key-course and auxiliary power, warning lamp, relay form measure loop, when power line overload, short circuit or damage time its temperature exceed normal operating temperature, the NTC thermistor resistance straight line of temperature-sensitive key-course declines and forms conductor, two copper conductors of temperature-sensitive key-course are connected, control loop is communicated with the generation signal of telecommunication, warning lamp is reported to the police, relay closes, the normally-closed contact of relay disconnects, and cuts off the connection of power line and external power supply to ensure safety.
Description
Technical field
The utility model relates to power cable field, particularly a kind of thermal resistance self-shield cable and comprise the power supply self-protecting device of described cable.
Background technology
Along with the raising of National Electrical level, electric power conveying will to high-power, high current-carrying capacity, high voltage development; The heating of high electric current, high voltage make the demand for security of power transmission highlight all the more.The existing measure about power transmission safety mainly contains: 1, arrange earth leakage protective and all kinds of protection switch, and this measure is often meet an urgent need afterwards, can not make up the loss caused; 2, assistant director is then had will to carry out thermometric to whole transmission system for integrated mill and by electric unit; Though the method can be dealt with problems, need long-term to drop into a large amount of manpowers, its subjectivity is strong, poor controllability, and some high-altitudes or buried-pipe laying also can make monitoring difficulty, it is dangerous to measure.Described in vertical upper, also do not have so far a kind of can safety, efficient, convenient, can the cable of self-protection.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides the thermal resistance self-shield cable of a kind of structure simple also energy self-protection and comprises the power supply self-protecting device of described cable.
The technical scheme that the utility model solves the problem is: a kind of thermal resistance self-shield cable; comprise the temperature-sensitive key-course and power line layer that set gradually from inside to outside; described temperature-sensitive key-course comprises copper conductor layer, thermal resistor layer, heat-conducting insulating silicon rubber layer from inside to outside successively; described copper conductor layer comprises two copper conductors be parallel to each other, and power line layer is arranged on heat-conducting insulating silicon rubber layer outer surface.
In above-mentioned thermal resistance self-shield cable, the ring-shaped section and ring-shaped of described power line layer, power line layer is spliced by 4 power lines, and every root power line comprises tile-type copper conductor and insulator from inside to outside successively.
In above-mentioned thermal resistance self-shield cable, described power line layer outer surface is provided with cable cover(ing).
In above-mentioned thermal resistance self-shield cable, described thermal resistor layer is NTC thermistor.
A kind of power supply self-protecting device; comprise power supply, warning lamp, relay and above-mentioned cable; another root copper conductor in a copper conductor in described cable, power supply, warning lamp, relay, cable connects and composes measure loop successively, and the normally-closed contact of described relay is serially connected on the connection line of external power supply and cable power line.
The beneficial effects of the utility model are: the utility model places temperature-sensitive key-course at active force cable core center, temperature-sensitive key-course and auxiliary power, warning lamp, relay forms measure loop, when power line overload, when short circuit or damage, its temperature exceedes normal operating temperature, the NTC thermistor resistance straight line of temperature-sensitive key-course declines and forms conductor, two copper conductors of temperature-sensitive key-course are connected, control loop is communicated with the generation signal of telecommunication, warning lamp is reported to the police, relay closes, the normally-closed contact of relay disconnects, cut off the connection of power line and external power supply to ensure safety.
Accompanying drawing explanation
Fig. 1 is the structural representation of cable in the utility model.
Fig. 2 is that the utility model is powered the electrical block diagram of self-protecting device.
Fig. 3 is the fundamental diagram of Fig. 2.
Fig. 4 is the Q position enlarged drawing in Fig. 3.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, thermal resistance self-shield cable of the present utility model comprises the temperature-sensitive key-course and power line layer that set gradually from inside to outside, described temperature-sensitive key-course comprises copper conductor layer from inside to outside successively, thermal resistor layer 2, heat-conducting insulating silicon rubber layer 3, described copper conductor layer comprises two copper conductors be parallel to each other 1, thermal resistor layer is NTC thermistor, power line layer is arranged on heat-conducting insulating silicon rubber layer 3 outer surface, the ring-shaped section and ring-shaped of power line layer, power line layer is spliced by 4 power lines 7, every root power line 7 comprises tile-type copper conductor 4 and insulator 5 from inside to outside successively, described power line layer outer surface is provided with cable cover(ing) 6.
A kind of power supply self-protecting device; as shown in the figure; comprise power supply 8, warning lamp 9, relay 10 and above-mentioned cable; another root copper conductor in a copper conductor in described cable, power supply 8, warning lamp 9, relay 10, cable connects and composes measure loop successively, and the normally-closed contact of described relay 10 is serially connected on the connection line of external power supply and cable power line 7.
Operation principle of the present utility model is as follows: as shown in Figure 2, and cable is when normally running, and the thermal resistor layer of temperature-sensitive key-course is in state of insulation, two copper conductors 1 not intercommunication of temperature-sensitive key-course, and control loop is not communicated with, external power supply normal power supply; As shown in Figure 3, Figure 4, when power line 7 transship, short circuit or damage time its temperature exceed normal operating temperature, the NTC thermistor resistance straight line of temperature-sensitive key-course declines and forms conductor, two of temperature-sensitive key-course copper conductors 1 are connected, control loop is communicated with the generation signal of telecommunication, and warning lamp 9 is reported to the police, and relay 10 closes, the normally-closed contact of relay 10 disconnects, and cuts off the connection of power line 7 and external power supply to ensure safety.
Claims (5)
1. a thermal resistance self-shield cable; it is characterized in that: comprise the temperature-sensitive key-course and power line layer that set gradually from inside to outside; described temperature-sensitive key-course comprises copper conductor layer, thermal resistor layer, heat-conducting insulating silicon rubber layer from inside to outside successively; described copper conductor layer comprises two copper conductors be parallel to each other, and power line layer is arranged on heat-conducting insulating silicon rubber layer outer surface.
2. thermal resistance self-shield cable as claimed in claim 1, it is characterized in that: the ring-shaped section and ring-shaped of described power line layer, power line layer is spliced by 4 power lines, and every root power line comprises tile-type copper conductor and insulator from inside to outside successively.
3. thermal resistance self-shield cable as claimed in claim 1, is characterized in that: described power line layer outer surface is provided with cable cover(ing).
4. thermal resistance self-shield cable as claimed in claim 1, is characterized in that: described thermal resistor layer is NTC thermistor.
5. a power supply self-protecting device; it is characterized in that: comprise the cable according to any one of power supply, warning lamp, relay and Claims 1-4; another root copper conductor in a copper conductor in described cable, power supply, warning lamp, relay, cable connects and composes measure loop successively, and the normally-closed contact of described relay is serially connected on the connection line of external power supply and cable power line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520090998.9U CN204407070U (en) | 2015-02-10 | 2015-02-10 | A kind of thermal resistance self-shield cable and comprise the power supply self-protecting device of described cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520090998.9U CN204407070U (en) | 2015-02-10 | 2015-02-10 | A kind of thermal resistance self-shield cable and comprise the power supply self-protecting device of described cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204407070U true CN204407070U (en) | 2015-06-17 |
Family
ID=53430910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520090998.9U Expired - Fee Related CN204407070U (en) | 2015-02-10 | 2015-02-10 | A kind of thermal resistance self-shield cable and comprise the power supply self-protecting device of described cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204407070U (en) |
-
2015
- 2015-02-10 CN CN201520090998.9U patent/CN204407070U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202141524U (en) | Switch cabinet temperature monitoring system based on wireless network | |
| CN102369644A (en) | Control circuit for preventing battery group from being reversely connected and power supply system for base station | |
| CN104501990A (en) | Online monitoring system of cable connector temperature rise | |
| CN102915806B (en) | Self-cooling power cable | |
| CN203367934U (en) | DC deicing system | |
| CN202940565U (en) | Intelligent protection system for photovoltaic confluence inverter | |
| CN204741088U (en) | Circuit connects protector | |
| CN105337252A (en) | Earth leakage protection apparatus having self-checking function | |
| CN204407070U (en) | A kind of thermal resistance self-shield cable and comprise the power supply self-protecting device of described cable | |
| CN106935455A (en) | A kind of intelligent fuse | |
| CN201518411U (en) | Novel overvoltage protector | |
| CN108923364A (en) | Intelligent DC ice-melt short-circuit tool and device | |
| CN201616636U (en) | Intelligent thawing device for bus portal frame of substation | |
| CN210486947U (en) | Cable temperature detection control system of distribution outgoing line loop | |
| CN103730201A (en) | High-resistance steel core ice melting wire | |
| CN204103449U (en) | There is the earth leakage protective device of self-checking function, electrical connection equipment and power consumption equipment | |
| CN104299715B (en) | High intensity low-resistivity high voltage power transmission power cable | |
| CN103076102A (en) | Main loop overheat automatic protection and fault diagnosis device for switch cabinet | |
| CN202178545U (en) | Intensive bus duct | |
| CN204793468U (en) | Socket and socket case with malfunction alerting function | |
| CN201188538Y (en) | Alarm device for current deviation of juxtaposition operation transformers | |
| CN203260974U (en) | Power line ice-melting device | |
| CN205407244U (en) | Control lightning protection circuit and lightning protection socket | |
| CN204792666U (en) | Fuse -element malfunction alerting ware | |
| CN204696605U (en) | Intelligent Bus groove connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Zhenjin Inventor after: Liu Ruilian Inventor before: Wang Zhenjin Inventor before: Liu Ruilian |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20190210 |