CN203399322U - Electric heating rod being able to shut off when out of water - Google Patents
Electric heating rod being able to shut off when out of water Download PDFInfo
- Publication number
- CN203399322U CN203399322U CN201320318405.0U CN201320318405U CN203399322U CN 203399322 U CN203399322 U CN 203399322U CN 201320318405 U CN201320318405 U CN 201320318405U CN 203399322 U CN203399322 U CN 203399322U
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- water
- heating rod
- control circuit
- heater
- storage tanks
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Abstract
An electric heating rod being able to shut off when out of water comprises a sheath, a heat-generating body and a control circuit controlling the heat-generating body. The control circuit comprises a microprocessor, an on-off isolation power supply and a heating control circuit. The microprocessor controls the heat-generating body through the on-off isolation power supply and the heating control circuit; one end of the heat-generating body is provided with two water probes connected with the microprocessor, and the end on the heat-generating body provided with the water probes is provided with a water separator; the water separator is provided with two storage tanks, the opening directions of the two storage tanks are opposite, the middle portions of the two storage tanks are not communicated, and two completely independent containers are formed when no water exist; when the two storage tanks contact water simultaneously, the two containers form a communicating vessel through water; and the two water probes on the heat-generating body are respectively inserted into the two storage tanks. Thereby, water is instantly separated when the heating rod is taken out of water, and power is off when the heating rod leaves water.
Description
Technical field
The present invention designs heating rod, especially aquarium heating rod.
Background technology
Shui nationality heating rod is under "on" position; after leaving water; in dry-fire condition; the surface meeting steep temperature rise of heating rod, temperature can be up to 200-500 ℃, even higher (power more high-temperature is higher); then rely on high temperature and be delivered to dry combustion method protective device (thermostat or bimetal leaf); open circuit after the induction of dry combustion method protective device, this process takes time 3-10 minute or longer conventionally, and this will depend on quality and the precision of thermostat or bimetal leaf.Its shortcoming is: heating rod is when "on" position, and after leaving water, heater is still worked, and heating rod surface temperature is too high, and the probability of scalding like this human body, explosion, fire equivalent risk is larger.The a lot of countries of such casualty accident occur.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of dried up instant cut-off heating rod, solve heating rod under "on" position, leaving water, heater will quit work in a flash, heating rod does not have dry-fire condition, the surface of heating rod, all the time in the following low-temperature condition of 200 degree, has not had the situation of high temperature, has so thoroughly stopped because of serious consequences such as scald that dry combustion method causes, explosion, fire.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of dried up instant cut-off heating rod, comprise sheath, be located under heater in sheath and control the control circuit of heater; Described control circuit comprises microprocessor, switching regulator insulating power supply and heating control circuit; Described microprocessor is controlled heater by switching regulator insulating power supply and heating control circuit and is worked; Described heater one end is provided with two water probes, described water probe is connected with microprocessor, on described heater, in one end of water probe, be provided with water knockout drum, described water knockout drum is provided with two storage tanks, the opening direction of two storage tanks is contrary, centre cannot be communicated with, and has just formed two completely independently containers under anhydrous state; When two storage tanks touch water simultaneously, now two containers have just formed a linker by water; Two water probes on described heater go deep into respectively in two storage tanks, heating rod is not when there is no the state of water, and two water probes are thoroughly separated by water knockout drum, and two water probes are surveyed less than resistance, microprocessor just can not powered to heater, and heater just cannot be worked; Heating rod energising is put into water, and two water probes detect while possessing the same resistance range of water, just signal are passed to microprocessor, and microprocessor just sends corresponding work order; When heating rod is taken out from water, water knockout drum is thoroughly separating the water between two water probes in a flash, and such two water probes are just surveyed less than possessing the same resistance of water, and microprocessor just sends out-of-work instruction to heater simultaneously.
As improvement, described control circuit also comprises that constant temperature is surveyed NTC and excess temperature is surveyed NTC.
As improvement, described control circuit also comprises LED state display lamp.
The beneficial effect that the present invention compared with prior art brought is:
The heater of heating rod can only be worked in water, do not having under the environment of water, heating unit power disconnects, heater not can be worked, heating rod does not have dry-fire condition, and the surface of heating rod is all the time in the following low-temperature condition of 200 degree, so dried up down techniques has thoroughly been stopped the serious consequences such as the scald that heating rod causes because of dry-fire condition, explosion, fire, the realization of dried up down techniques, has filled up the blank that heating rod in global Shui nationality industry does not have dry combustion method.
Accompanying drawing explanation
Fig. 1 is heating rod decomposition view of the present invention.
Fig. 2 is control circuit structured flowchart of the present invention.
Fig. 3 is water knockout drum three-dimensional structure schematic diagram.
Fig. 4 is water knockout drum end view.
Fig. 5 is the cutaway view of separator.
Embodiment
Below in conjunction with Figure of description, the invention will be further described.
As shown in Figure 1, a kind of dried up instant cut-off heating rod, comprise sheath 4, be located under heater 2 in sheath 4 and control the control circuit of heater 2.As shown in Figure 2, described control circuit comprises that microprocessor 5, switching regulator insulating power supply 6, heating control circuit 7, constant temperature are surveyed NTC9, excess temperature is surveyed NTC8, current foldback circuit 10 and LED state display lamp 11.Described microprocessor 5 is controlled heater 2 work by switching regulator insulating power supply 6 and heating control circuit 7.Described heater 2 one end are provided with two water probes 3, and described water probe 3 is connected with microprocessor 5, and the effect of water probe 3 is for surveying two resistance between water probe 3.On described heater 2, in one end of water probe 3, be provided with water knockout drum 1, as shown in Figure 3,4, to be provided with the opening direction of 13, two storage tanks 13 of two storage tanks be contrary to described water knockout drum 1, centre cannot be communicated with, and has just formed two completely independently containers under anhydrous state; When two storage tanks 13 touch water simultaneously, now two containers have just formed a linker by water; Contrary when heating rod leaves the water surface, linker has lost the connection of water, and natural moment has become again two independently containers; Two water probes 3 on described heater go deep into respectively in two storage tanks 13.
Operation principle of the present invention: dried up down techniques is to have the resistance characteristic of certain limit according to fresh water and seawater essence, and I take charge of invention and have designed two water probes 3, and a water knockout drum 1.As shown in Figure 5, heating rod is not when there is no the state of water, and two water probes 3 are thoroughly separated by water knockout drum 1, and two water probes 3 are surveyed less than resistance, and microprocessor 5 just can not give heater 2 power supplies, and heater just cannot be worked; Heating rod energising is put into water, and two water probes 3 detect while possessing the same resistance range of water, just signal are passed to microprocessor 5, and microprocessor 5 just sends corresponding work order; When heating rod is taken out from water, water knockout drum 1 is thoroughly separating the water between two water probes 3 in a flash, and such two water probes 3 are just surveyed less than possessing the same resistance of water, and microprocessor 5 just sends out-of-work instruction to heater simultaneously.After so just having realized heating rod and taking out the water surface moment by the effect of water separation, thereby realize heating rod leaving water heater moment deenergization.
The heater of heating rod can only be worked in water, do not having under the environment of water, heating unit power disconnects, heater not can be worked, heating rod does not have dry-fire condition, and the surface of heating rod is all the time in the following low-temperature condition of 200 degree, so dried up down techniques has thoroughly been stopped the serious consequences such as the scald that heating rod causes because of dry-fire condition, explosion, fire, the realization of dried up down techniques, has filled up the blank that heating rod in global Shui nationality industry does not have dry combustion method.
Claims (3)
1. a dried up instant cut-off heating rod, comprise sheath, be located under heater in sheath and control the control circuit of heater; It is characterized in that: described control circuit comprises microprocessor, switching regulator insulating power supply and heating control circuit; Described microprocessor is controlled heater by switching regulator insulating power supply and heating control circuit and is worked; Described heater one end is provided with two water probes, and described water probe is connected with microprocessor, on described heater, in one end of water probe, is provided with water knockout drum, and described water knockout drum is provided with two storage tanks, and the opening direction of two storage tanks is contrary.
2. a kind of dried up instant cut-off heating rod according to claim 1, is characterized in that: described control circuit also comprises that constant temperature is surveyed NTC and excess temperature is surveyed NTC.
3. a kind of dried up instant cut-off heating rod according to claim 1, is characterized in that: described control circuit also comprises LED state display lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320318405.0U CN203399322U (en) | 2013-05-29 | 2013-05-29 | Electric heating rod being able to shut off when out of water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320318405.0U CN203399322U (en) | 2013-05-29 | 2013-05-29 | Electric heating rod being able to shut off when out of water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203399322U true CN203399322U (en) | 2014-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320318405.0U Expired - Lifetime CN203399322U (en) | 2013-05-29 | 2013-05-29 | Electric heating rod being able to shut off when out of water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203399322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455146A (en) * | 2016-10-20 | 2017-02-22 | 梁洪伟 | Intelligent control system for aquarium heating rod |
-
2013
- 2013-05-29 CN CN201320318405.0U patent/CN203399322U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455146A (en) * | 2016-10-20 | 2017-02-22 | 梁洪伟 | Intelligent control system for aquarium heating rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhou Yuzhen Document name: Notification of Passing Examination on Formalities |
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| DD01 | Delivery of document by public notice | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140115 |
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| CX01 | Expiry of patent term |