CN104034440A - Over-temperature detection device for conductive wire joint - Google Patents
Over-temperature detection device for conductive wire joint Download PDFInfo
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- CN104034440A CN104034440A CN201410260032.5A CN201410260032A CN104034440A CN 104034440 A CN104034440 A CN 104034440A CN 201410260032 A CN201410260032 A CN 201410260032A CN 104034440 A CN104034440 A CN 104034440A
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- electromagnetic relay
- over
- detection device
- temperature detection
- armature
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention discloses an over-temperature detection device for a conductive wire joint. The over-temperature detection device comprises an electromagnetic relay and a metal substance bonded at the joint and melted at a temperature, wherein the both ends of the metal substance are connected to the both ends of the control circuit of the electromagnetic relay; a first power supply and a resistor R1 are serially connected to the control circuit; a contact is arranged at the upper end of the armature of the electromagnetic relay; the armature is connected to a second power supply; the other end of the second power supply is connected with a buzzer through a resistor R2; the other end of the buzzer is connected to the contact. The over-temperature detection device has the advantages of being low in price and high in detection accuracy.
Description
Technical field
The present invention relates to excess temperature pick-up unit, particularly, relate to a kind of terminal excess temperature pick-up unit.
Background technology
in high pressure transmission line, the connection at terminal place is all generally adopt aluminium hydraulic pressed connecting pipe and hook the modes such as wire clamp.Terminal is in operational process, the phenomenon that its frequent occurrence temperature is too high.Excess Temperature, very easily causes the oxidation of joint, so that the increase of the quantity of heat production of joint, thereby blow joint, affect the operation of whole circuit.Because high-tension line is all generally to use tower erection wire, liftoff higher, and personnel can not be close, therefore, makes the temperature detection of people's butt junction just become a difficult problem.The temperature detection of existing butt junction has a lot of modes, for example, utilizes infrared radiation butt junction temperature to detect, and it does not directly contact with joint, but due to distance, its accuracy of detection is low, and price is high.
Summary of the invention
Technical matters to be solved by this invention is to provide the terminal excess temperature pick-up unit that a kind of price is low and accuracy of detection is high.
The present invention addresses the above problem adopted technical scheme:
A kind of terminal excess temperature pick-up unit, comprise electromagnetic relay and stick in joint and can molten metal when a kind of temperature material, the two ends of described metallics are connected to the two ends of the control circuit of electromagnetic relay, on described control circuit, be serially connected with the first power supply and resistance R 1, the upper end of the armature of described electromagnetic relay is provided with contact, described armature is connected on second source, the other end of second source is connected with hummer by resistance R 2, and the other end of described hummer is connected on contact.
As preferably, described second source is battery.
Further, described metallics is tin.
To sum up, the invention has the beneficial effects as follows:
1, the present invention utilizes electromagnetic relay to reach the control to hummer to the control of armature, and it is simple in structure, and cost of manufacture is low.
2, the present invention utilizes the thawing of metallics to reach hummer is controlled, and its control accuracy is high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Mark and corresponding parts title in accompanying drawing: 1, metallics; 2, electromagnetic relay; 3, contact; 4, hummer; 5, second source; 6, the first power supply.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is done to detailed description further, but embodiments of the present invention are not limited to this.
Embodiment 1:
A kind of terminal excess temperature pick-up unit as shown in Figure 1, comprise electromagnetic relay 2 and stick in joint and can molten metal material 1 when a kind of temperature, the two ends of described metallics 1 are connected to the two ends of the control circuit of electromagnetic relay 2, on described control circuit, be serially connected with the first power supply 6 and resistance R 1, the upper end of the armature of described electromagnetic relay 2 is provided with contact 3, described armature is connected on second source 5, the other end of second source 5 is connected with hummer 4 by resistance R 2, and the other end of described hummer 4 is connected on contact 3.
The course of work of the present embodiment is as follows:
When connector temperature does not reach alarm temperature, while not reaching the fusing point of metallics 1, the control circuit of electromagnetic relay 2 is closed-loop path, the magnet of electromagnetic relay 2 plays adhesive effect to armature, now, hummer, resistance R 2, loop, second source place are for disconnecting, and hummer is not worked.When connector temperature reaches alarm temperature, while reaching the fusing point of metallics 1, metallics fusing, comes off from joint, now, the control circuit of electromagnetic relay 2 disconnects, the magnet of electromagnetic relay 2 does not play sucking action to armature, and armature contacts with contact under the effect of spring, and now hummer, resistance R 2, loop, second source place are closed, hummer is started working, i.e. alarm.The precision of whole device is high, and simple in structure, and cost of manufacture is low, is easy to realize.
Embodiment 2:
A kind of terminal excess temperature pick-up unit as shown in Figure 1, the present embodiment has been done following refinement on the basis of embodiment, and described second source 5 is battery.
Described metallics 1 is tin.The fusing point of tin is 232 degrees Celsius, the temperature requirement of satisfied temperature alarm.
In specific embodiment, adopting tin is that metallics 1, the first power supply 6, second source adopt respectively 3.6V and 3.0V, and resistance R 1, resistance R 2 select respectively 10 ohm, 5 ohm can realize.
As mentioned above, can realize preferably the present invention.
Claims (3)
1. a terminal excess temperature pick-up unit, it is characterized in that: comprise electromagnetic relay (2) and stick in joint and can molten metal material (1) when a kind of temperature, the two ends of described metallics (1) are connected to the two ends of the control circuit of electromagnetic relay (2), on described control circuit, be serially connected with the first power supply (6) and resistance R 1, the upper end of the armature of described electromagnetic relay (2) is provided with contact (3), described armature is connected on second source (5), the other end of second source (5) is connected with hummer (4) by resistance R 2, the other end of described hummer (4) is connected on contact (3).
2. a kind of terminal excess temperature pick-up unit according to claim 1, is characterized in that: described second source (5) is battery.
3. a kind of terminal excess temperature pick-up unit according to claim 1 and 2, is characterized in that: described metallics (1) is tin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410260032.5A CN104034440A (en) | 2014-06-12 | 2014-06-12 | Over-temperature detection device for conductive wire joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410260032.5A CN104034440A (en) | 2014-06-12 | 2014-06-12 | Over-temperature detection device for conductive wire joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104034440A true CN104034440A (en) | 2014-09-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410260032.5A Pending CN104034440A (en) | 2014-06-12 | 2014-06-12 | Over-temperature detection device for conductive wire joint |
Country Status (1)
| Country | Link |
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| CN (1) | CN104034440A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466593A (en) * | 2015-12-03 | 2016-04-06 | 宁波澳玛特高精冲压机床股份有限公司 | Crankshaft temperature monitoring system, crankshaft temperature monitoring method, and punch press |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1062268A (en) * | 1996-08-26 | 1998-03-06 | Yutaka Denshi Kk | Hot water heater for ornamental fish |
| CN2739737Y (en) * | 2004-06-15 | 2005-11-09 | 何芳喜 | Multifunctional electromagnetic relay demonstrating device |
| CN201431728Y (en) * | 2009-06-18 | 2010-03-31 | 肖建军 | Automatic fire extinguisher |
| CN201945402U (en) * | 2010-10-11 | 2011-08-24 | 河南省电力公司濮阳供电公司 | High-voltage line conducting wire connector lug online temperature measuring device |
| CN202352003U (en) * | 2011-10-28 | 2012-07-25 | 杨爱民 | Electromagnetic anti-theft alarm |
| CN202404717U (en) * | 2011-12-02 | 2012-08-29 | 马煦桐 | Gas alarm |
| CN203881460U (en) * | 2014-06-12 | 2014-10-15 | 国网四川省电力公司成都市新都供电分公司 | Over-temperature detection device of lead joint |
-
2014
- 2014-06-12 CN CN201410260032.5A patent/CN104034440A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1062268A (en) * | 1996-08-26 | 1998-03-06 | Yutaka Denshi Kk | Hot water heater for ornamental fish |
| CN2739737Y (en) * | 2004-06-15 | 2005-11-09 | 何芳喜 | Multifunctional electromagnetic relay demonstrating device |
| CN201431728Y (en) * | 2009-06-18 | 2010-03-31 | 肖建军 | Automatic fire extinguisher |
| CN201945402U (en) * | 2010-10-11 | 2011-08-24 | 河南省电力公司濮阳供电公司 | High-voltage line conducting wire connector lug online temperature measuring device |
| CN202352003U (en) * | 2011-10-28 | 2012-07-25 | 杨爱民 | Electromagnetic anti-theft alarm |
| CN202404717U (en) * | 2011-12-02 | 2012-08-29 | 马煦桐 | Gas alarm |
| CN203881460U (en) * | 2014-06-12 | 2014-10-15 | 国网四川省电力公司成都市新都供电分公司 | Over-temperature detection device of lead joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466593A (en) * | 2015-12-03 | 2016-04-06 | 宁波澳玛特高精冲压机床股份有限公司 | Crankshaft temperature monitoring system, crankshaft temperature monitoring method, and punch press |
| CN105466593B (en) * | 2015-12-03 | 2017-12-05 | 宁波澳玛特高精冲压机床股份有限公司 | Crankcase temperature monitoring system, crankcase temperature monitoring method and punch press |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140910 |