CN201149531Y - Device for monitoring temperature of cable conductor joint - Google Patents
Device for monitoring temperature of cable conductor joint Download PDFInfo
- Publication number
- CN201149531Y CN201149531Y CNU2007200300586U CN200720030058U CN201149531Y CN 201149531 Y CN201149531 Y CN 201149531Y CN U2007200300586 U CNU2007200300586 U CN U2007200300586U CN 200720030058 U CN200720030058 U CN 200720030058U CN 201149531 Y CN201149531 Y CN 201149531Y
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- CN
- China
- Prior art keywords
- circuit
- diode
- triode
- temperature monitor
- 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
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model relates to a temperature monitor in the field of electrical engineering, in particular to a temperature monitor with cable joints. The temperature monitor adopts the technical proposal that: the temperature monitor is composed of and connected by a power circuit, a detection display circuit, an alarm circuit and a gate controlling circuit, and is characterized in that the power circuit is composed of a capacitor C1, a capacitor C2, a diode D1 and a voltage regulator diode DW; the detection display circuit is composed of a triode T1, a resistor R1, a resistor R2, a resistor R3, a thermistor RW1 and a light emitting diode LED1; the alarm circuit consists of a triode T4 and a buzzer L; and the gate controlling circuit consists of a diode D2 and a resistor R10 by series connection. The temperature monitor has the advantages of easy installation, low cost of manufacturing, allowing for monitoring of a plurality of contacts, safety and reliability.
Description
Technical field
The utility model relates to a kind of temperature monitor in power engineering field, especially relates to a kind of cable adapter temperature monitoring device.
Background technology
In the power engineering field, cable adapter generally all is erected in dark place or the cable duct, if bringing onto load or deal with improperly over a long time, cable lug place easily heating is loosening, if in time do not find, connector temperature raises, line resistance increases, and often causes three-phase imbalance or electrical hazard occurs.
Summary of the invention
The purpose of this utility model is exactly the defective that exists at prior art, a kind of simple installation is provided, can monitors and safe and reliable cable adapter temperature monitoring device by a plurality of contacts.
Its technical scheme is: comprise that power circuit, detection display circuit, warning circuit and gating circuit connect to form, it is characterized in that: power circuit is made up of capacitor C 1, C2, diode D1 and voltage stabilizing diode DW; Detecting display circuit is made up of triode T1, resistance R 1, R2, R3, thermistor RW1 and LED 1; Warning circuit is made up of triode T4 and hummer L; Gating circuit is made up of diode D2 series limiting resistor R10.
Above-mentioned technology also can be improved to: detect display circuits by many groups and compose in parallel multichannel and detect display circuit, gating circuit is by a plurality of diode parallel connections, and series limiting resistor R10 channeling gating circuit again can be monitored the temperature at a plurality of cable splices place simultaneously.
The utlity model has and install additional easyly, cost of manufacture is low, can a plurality of contacts monitoring and safe and reliable.
Description of drawings
Accompanying drawing is the circuit theory diagrams of present embodiment;
U connects the 220V power supply among the figure; K1 is a power switch; BR is a fuse.
Embodiment
Be further described with regard to its principle of work below in conjunction with accompanying drawing: the utility model mainly detects display circuit, warning circuit and three road gating circuits by power circuit, three tunnel and connects to form, and power circuit connects diode D1 by capacitor C 1 and voltage stabilizing diode DW shunt capacitance C2 forms; The first via detects display circuit is made of resistance R 1, R2, R3, thermistor RW1 series connection triode T1 connection resistance R 1, R2, R3, thermistor RW1 and LED 1; The second the tunnel detects display circuit is made up of triode T2 connection resistance R 4, R5, R6, thermistor RW2 and LED 2; Third Road detects display circuit and is made up of triode T3 connection resistance R 7, R8, R9, thermistor RW3 and LED 3; Triode T4 connects hummer L and forms warning circuit; Diode D2, D3, D4, current-limiting resistance R10 form three road gating circuits.
U connects the 220V power supply; Turning on the power switch K1, is example with the first via, and just often thermistor RW1 resistance is bigger for the cable lug temperature at ordinary times, and the base stage of triode T1 is an electronegative potential, not conducting of T1, and LED 1 is not luminous.Simultaneously, also not conducting of diode D2, triode T4 by, hummer L is noiseless.If when the cable lug temperature raise, thermistor RW1 resistance diminished, and makes that the base stage of triode T1 is a noble potential, the T1 conducting, LED 1 is luminous.Simultaneously, also conducting of diode D2, triode T4 conducting, hummer L sends tweeting sound.Second and third road in like manner.
Claims (2)
1, a kind of cable adapter temperature monitoring device comprises that power circuit, detection display circuit, warning circuit and gating circuit connect to form, and it is characterized in that: power circuit is made up of capacitor C 1, C2, diode D1 and voltage stabilizing diode DW; Detecting display circuit is made up of triode T1, resistance R 1, R2, R3, thermistor RW1 and LED 1; Warning circuit is made up of triode T4 and hummer L; Gating circuit is made up of diode D2 series limiting resistor R10.
2, cable adapter temperature monitoring device according to claim 1 is characterized in that: detect display circuits by many groups and compose in parallel multichannel and detect display circuit, gating circuit is by a plurality of diode parallel connections, again series limiting resistor R10 channeling gating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200300586U CN201149531Y (en) | 2007-10-28 | 2007-10-28 | Device for monitoring temperature of cable conductor joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200300586U CN201149531Y (en) | 2007-10-28 | 2007-10-28 | Device for monitoring temperature of cable conductor joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201149531Y true CN201149531Y (en) | 2008-11-12 |
Family
ID=40117302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200300586U Expired - Fee Related CN201149531Y (en) | 2007-10-28 | 2007-10-28 | Device for monitoring temperature of cable conductor joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201149531Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169342B (en) * | 2007-10-31 | 2010-06-09 | 王亮德 | Cable adapter temperature monitoring system |
-
2007
- 2007-10-28 CN CNU2007200300586U patent/CN201149531Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101169342B (en) * | 2007-10-31 | 2010-06-09 | 王亮德 | Cable adapter temperature monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20091130 |