OFF-WATER PROTECTION HEATER WITH CONTROLLER

Abstract

An off-water protection heater with controller includes a controller, a tube, and a cap mounted to an end of the tube. The controller includes a control circuit and one of a relay and a TRIAC. The control circuit includes a control unit (an MCU or a comparator). The tube is provided, in an interior thereof, with an off-water protection transducer and a heating element. The off-water protection transducer is electrically connected to the control unit or is electrically connected, together with the control unit, to the one of relay and TRIAC. By using the off-water protection transducer to detect a situation of being removed out of water or not, the heating element is controlled to generate heat or not in order to ensure electricity being quickly cut off upon removal out of water thereby saving energy and preventing excessively high temperature and unloaded heating as being removed out of water.

Claims

1. An off-water protection heater with controller, comprising a controller, a tube, and a cap mounted to an end of the tube, wherein the controller comprises, as being arranged in an interior thereof, a control circuit and one of a relay and a bidirectional triode thyristor (TRIAC), and the control circuit includes a control unit; and the tube comprises, as being arranged in an interior thereof, an off-water protection transducer and a heating element; wherein the off-water protection transducer, the control unit, the one of the relay and TRIAC, and the heating element are electrically connected in sequence to form a control loop; wherein the off-water protection transducer, upon detecting being immersed in water, transmits a signal to the control unit, and the control unit controls the one of the relay and TRIAC, according a detected temperature of water, to activate for conducting electricity to control the heating element to generate heat or not; and the off-water protection transducer, upon detecting being removed out of water, transmits a signal to the control unit, and the control unit controls the one of the relay and TRIAC to deactivate to cut off electricity so that the heating element does not generate heat.

2. An off-water protection heater with controller, comprising a controller, a tube, and a cap mounted to an end of the tube, wherein the controller comprises, as being arranged in an interior thereof, a control circuit and one of a relay and a bidirectional triode thyristor (TRIAC), and the control circuit includes a control unit; and the tube comprises, as being arranged in an interior thereof, an off-water protection transducer and a heating element; wherein the off-water protection transducer, the one of the relay and TRIAC, and the heating element are electrically connected in sequence to form a control loop, and the one of the relay and TRIAC is further connected to the control unit; wherein the off-water protection transducer, upon detecting being immersed in water, turns on the one of the relay and TRIAC for conducting electricity to control the heating element to generate heat; and the off-water protection transducer, upon detecting being removed out of water, turns off the one of the relay and TRIAC to cut off electricity so that the heating element does not generate heat; wherein according to a detected water temperature being higher than a preset temperature or due to an excessively high temperature resulting from removal out of water, the control unit controls the one of the relay and TRIAC to cut off electricity so that the heating element does not generate heat.

3. The off-water protection heater with controller according to claim 1, wherein the control unit comprises one of a micro control unit (MCU) and a comparator.

4. The off-water protection heater with controller according to claim 2, wherein the control unit comprises one of a micro control unit (MCU) and a comparator.

5. The off-water protection heater with controller according to claim 1, wherein the heating element is selected as one of a heating wire and a heating device.

6. The off-water protection heater with controller according to claim 2, wherein the heating element is selected as one of a heating wire and a heating device.

7. The off-water protection heater with controller according to claim 1, wherein the tube comprises, as being arranged therein, a thermistor, which transmits the detected water temperature to the control unit to control the one of the relay and TRIAC to turn on or not for conducting electricity.

8. The off-water protection heater with controller according to claim 2, wherein the tube comprises, as being arranged therein, a thermistor, which transmits the detected water temperature to the control unit to control the one of the relay and TRIAC to turn on or not for conducting electricity.

9. The off-water protection heater with controller according to claim 1, wherein the tube is selected as a glass tube.

10. The off-water protection heater with controller according to claim 2, wherein the tube is selected as a glass tube.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG. 1 is an exploded view of the present invention.

[0011] FIG. 2 is a control logic block diagram for off-water protection according to the present invention.

[0012] FIG. 3 is a control logic block diagram for off-water protection according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0013] Referring to FIGS. 1 and 2, a first embodiment of the present invention is provided as follows:

[0014] An off-water protection heater with controller according to the present invention comprises a controller 10, a tube 20, and a cap 30 mounted to an end of the tube 20.

[0015] The controller 10 comprises, as being arranged in an interior thereof, a control circuit 11 and one of a relay 12 and a bidirectional triode thyristor (TRIAC) (wherein a relay 12 is shown in the drawings as an example for illustration of the embodiment, because a TRIAC provides the same function and effectiveness as the relay 12). The control circuit 11 includes a control unit 111.

[0016] The tube 20 comprises, as being arranged in an interior thereof, an off-water protection transducer 21 and a heating element 22.

[0017] The off-water protection transducer 21, the control unit 111, the one of the relay 12 and TRIAC, and the heating element 22 are electrically connected in sequence to form a control loop.

[0018] The off-water protection transducer 21, upon detecting being immersed in water, transmits a signal to the control unit 111, and the control unit 111 controls the one of the relay 12 and TRIAC, according a detected temperature of water, to activate for conducting electricity to control the heating element 22 to generate heat or not.

[0019] The off-water protection transducer 21, upon detecting being removed out of water, transmits a signal to the control unit 111, and the control unit 111 controls the one of the relay 12 and TRIAC to deactivate to cut off electricity so that the heating element 22 does not generate heat.

[0020] Referring to FIGS. 1 and 3, a second embodiment of the present invention is provided as follows:

[0021] An off-water protection heater with controller according to the present invention comprises a controller 10, a tube 20, and a cap 30 mounted to an end of the tube 20.

[0022] The controller 10 comprises, arranged in an interior thereof, a control circuit 11 and one of a relay 12 and a bidirectional triode thyristor (TRIAC) (wherein a relay 12 is shown in the drawings as an example for illustration of the embodiment, because a TRIAC provides the same function and effectiveness as the relay 12). The control circuit 11 includes a control unit 111.

[0023] The tube 20 comprises, arranged in an interior thereof, an off-water protection transducer 21 and a heating element 22.

[0024] The off-water protection transducer 21, the one of the relay 12 and TRIAC, and the heating element 22 are electrically connected in sequence to form a control loop, and the one of the relay 12 and TRIAC is further connected to the control unit 111.

[0025] The off-water protection transducer 21, upon detecting being immersed in water, turns on the one of the relay 12 and TRIAC for conducting electricity to control the heating element 22 to generate heat.

[0026] The off-water protection transducer 21, upon detecting being removed out of water, turns off the one of the relay 12 and TRIAC to cut off electricity so that the heating element 22 does not generate heat.

[0027] According to a detected water temperature being higher than a preset temperature or due to an excessively high temperature resulting from removal out of water, the control unit 111 controls the one of the relay 12 and TRIAC to cut off electricity so that the heating element 22 does not generate heat.

[0028] Further, the second embodiment of the present invention is generally such that for two conditions of which a first one is that the control unit 111 detects the water temperature being higher than the preset temperature or an excessively high temperature due to being moved out of water, and the second one is that when the off-water protection transducer 21 identifies a situation of being moved out of water, when either one of the two conditions is satisfied, the one of the relay 12 and TRIAC is turned off to cut off electricity so as to prevent the heating element 22 from further generating heat.

[0029] The efficacy of the present invention is that by using the off-water protection transducer 21 to detect the situation of being removed out of water or not, the heating element 22 is controlled to generate heat or not in order to ensure electricity being quickly cut off upon removal out of water thereby saving energy and preventing excessively high temperature of heating and also avoiding unloaded heating as being removed out of water.

[0030] Referring to FIG. 1, in an embodiment, the control unit 111 comprises one of a micro control unit (MCU) and a comparator.

[0031] In an embodiment, the heating element 22 is selected as one of a heating wire and a heating device.

[0032] In an embodiment, the tube 20 comprises, as being arranged therein, a thermistor 23, which transmits the detected water temperature to the control unit 111 to control the one of the relay 12 and TRIAC to turn on or not for conducting electricity.

[0033] In an embodiment, the tube 20 is selected as a glass tube.