CN210374100U - Water outlet power-off protection system of electric water heater and electric water heater thereof - Google Patents
Water outlet power-off protection system of electric water heater and electric water heater thereof Download PDFInfo
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- CN210374100U CN210374100U CN201920828021.0U CN201920828021U CN210374100U CN 210374100 U CN210374100 U CN 210374100U CN 201920828021 U CN201920828021 U CN 201920828021U CN 210374100 U CN210374100 U CN 210374100U
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Abstract
The utility model provides an electric water heater water outlet power-off protection system, which comprises a power plug, a main control panel, a water flow sensor, a temperature sensor, an electric heating pipe and a display control panel, wherein the main control panel is provided with a power input circuit, a strong current output circuit, a weak current output circuit and a first signal receiving and sending circuit, and the display control panel is provided with a second signal receiving and sending circuit; when the water flow sensor detects water flow and the main control panel and the display control panel both receive signals of the water flow sensor, the strong current output circuit on the main control panel is switched off and the weak current output circuit on the main control panel is synchronously switched off to the power transmission part of the display control panel, so that the safety purpose of water outlet and power failure is achieved; when the water flow sensor does not detect the water flow, the strong current output circuit on the main control board and the weak current output circuit on the main control board re-energize the power transmission portion of the display control panel. The utility model also provides an use this electric water heater of play water power-off protection system.
Description
Technical Field
The utility model belongs to the technical field of safety protection, especially, relate to an electric water heater goes out water power-off protection system.
Background
The electric water heater is a water heater which heats by taking electricity as energy. The solar water heater is one of three water heaters which are parallel to a gas water heater and a solar water heater, and through the development of the electric water heater for more than ten years, the technology of the water heater is continuously improved and is more and more favored by consumers.
In order to improve the safety performance of an electric water heater, a water outlet power-off function appears in the prior art, namely when the electric water heater is used for discharging water, the power supply of the electric water heater is automatically cut off, and when the function is realized, a water flow sensor is required to detect whether the electric water heater discharges water, therefore, when the water flow sensor detects water flow, the water flow sensor sends a water flow signal to a water heater data acquisition module, the water heater data acquisition module sends a stop signal to a control module, and the control module drives a leakage protection assembly to cut off the power supply of a heating element (such as an electric heating pipe) of the electric water. Although the electric water heater realizes the water outlet and power off functions on the heating element, other working electric devices (such as a display screen, a main control panel and the like) in the electric water heater are still in a power supply state, and potential safety hazards still exist under extreme conditions.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a simple structure is provided, and the response is rapid, can realize the electric water heater of "water outage" function simultaneously for each work electrical part in the electric water heater, stops the potential safety hazard.
In order to solve the technical problem, the utility model provides a first scheme:
a water outlet power-off protection system of an electric water heater comprises a power plug, a main control panel, a water flow sensor, a temperature sensor, an electric heating pipe and a display control panel, wherein the main control panel is provided with a power input circuit, a strong current output circuit, a weak current output circuit and a first signal transceiving circuit, and the display control panel is provided with a second signal transceiving circuit;
the power input circuit is connected with the power plug through a power connecting wire; the strong current output circuit is connected with the electric heating tube through a power supply connecting wire and outputs strong current for the electric heating tube to work; the weak current output circuit is respectively connected with the water flow sensor, the temperature sensor and the display control panel through power supply connecting wires and outputs weak current for the work of the water flow sensor, the temperature sensor and the display control panel;
the signal output end of the water flow sensor is connected with the second signal transceiving circuit of the display control panel through a first signal connecting line, the signal output end of the water flow sensor is connected with the first signal transceiving circuit of the main control panel through a second signal connecting line, and the water flow sensor is used for detecting the water outlet flow of the electric water heater and sending a detection signal to the main control panel and the display control panel in real time;
the second signal receiving and generating circuit of the display control panel is connected with the first signal receiving and generating circuit of the main control panel through a third signal connecting wire, and the display control panel is used for setting and displaying the real-time running state and the working parameters of the electric water heater;
when the water flow sensor detects water flow and the main control panel and the display control panel both receive signals of the water flow sensor, a strong current output circuit on the main control panel is switched off and a weak current output circuit on the main control panel is synchronously switched off to a power transmission part of the display control panel; when the water flow sensor does not detect water flow, the strong current output circuit on the main control board and the weak current output circuit on the main control board re-energize the power transmission part of the display control panel.
As the utility model discloses an improvement of the first scheme, temperature sensor's signal output part pass through signal connection line with the first signal transceiver circuit of main control panel connects, temperature sensor is used for detecting electric water heater inner bag temperature to in real time with detected signal send to the main control panel, detect electric water heater inner bag temperature and be less than the settlement temperature when temperature sensor, and electric water heater is in when stopping water, the circular telegram of forceful electric power output circuit on the main control panel, electric heating pipe work stops the heating when electric water heater inner bag temperature reaches the settlement temperature.
As the utility model discloses an improvement of the first scheme, be equipped with the signal on & off switch that can supply the user to select or close out the water outage function on the display control panel, the signal on & off switch with first signal connection line connects.
As the utility model discloses an improvement of the first scheme, power plug with be provided with the overtemperature prote ware on the power connection line between the main control panel, work as when the overtemperature prote ware detected the temperature that generates heat of power connection line and is greater than or equal to the settlement temperature, protection switch disconnection power supply in the overtemperature prote ware to the main control panel transmission of electricity.
In addition, based on above-mentioned first scheme, the utility model discloses still provide an electric water heater, including each item content in above-mentioned first scheme electric water heater play water power-off protection system.
Implement the utility model discloses the electric water heater of the first scheme goes out water power-off protection system and electric water heater thereof compares with prior art, has following beneficial effect:
when a user uses water, water flow passes through the water flow sensor to send signals to the main control panel and the display control panel synchronously, after the main control panel and the display control panel receive the signals of the water flow sensor, the main control panel disconnects the strong current output circuit and the weak current output circuit to the power transmission part of the display control panel, and corresponding working electric devices (such as a display screen and an electric heating pipe) of the electric water heater are turned off, so that the safety purpose of 'water outlet power failure' is achieved; when the user stops using water, the water flow sensor stops outputting signals, the strong current output circuit on the main control panel and the weak current output circuit on the main control panel re-energize the power transmission part of the display control panel, and a leakage protection plug is not required to be configured.
In order to solve the technical problem, the utility model discloses still provide the second scheme:
a water outlet power-off protection system of an electric water heater comprises a power plug, a main control panel, a water flow sensor, a temperature sensor, an electric heating pipe and a display control panel, wherein the main control panel is provided with a power input circuit, a strong current output circuit, a weak current output circuit and a first signal transceiving circuit, and the display control panel is provided with a second signal transceiving circuit;
the power input circuit is connected with the power plug through a power connecting wire; the strong current output circuit is connected with the electric heating tube through a power supply connecting wire and outputs strong current for the electric heating tube to work; the weak current output circuit is respectively connected with the water flow sensor, the temperature sensor and the display control panel through power supply connecting wires and outputs weak current for the work of the water flow sensor, the temperature sensor and the display control panel;
the signal output end of the water flow sensor is connected with a second signal transceiving circuit of the display control panel through a first signal connecting line, and the water flow sensor is used for detecting the water outlet flow of the electric water heater and sending a detection signal to the display control panel in real time;
the second signal receiving and generating circuit of the display control panel is connected with the first signal receiving and generating circuit of the main control panel through a second signal connecting wire, and the display control panel is used for setting and displaying the real-time running state and working parameters of the electric water heater and sending the detection signal received from the water flow sensor to the main control panel;
when the water flow sensor detects water flow and the main control panel and the display control panel both receive signals of the water flow sensor, a strong current output circuit on the main control panel is switched off and a weak current output circuit on the main control panel is synchronously switched off to a power transmission part of the display control panel; when the water flow sensor does not detect water flow, the strong current output circuit on the main control board and the weak current output circuit on the main control board re-energize the power transmission part of the display control panel.
As the utility model discloses an improvement of second scheme, temperature sensor's signal output part pass through signal connection line with the first signal transceiver circuit of main control panel connects, temperature sensor is used for detecting electric water heater inner bag temperature to in real time with detected signal send to the main control panel, detect electric water heater inner bag temperature and be less than the settlement temperature when temperature sensor, and electric water heater is in when the stop water, the circular telegram of forceful electric power output circuit on the main control panel, electric heating pipe work stops the heating when electric water heater inner bag temperature reaches the settlement temperature.
As the utility model discloses an improvement of second scheme, be equipped with the signal on & off switch that can supply the user to select or close out the water outage function on the display control panel, the signal on & off switch with first signal connection line connects.
As the utility model discloses an improvement of second scheme, power plug with be provided with the overtemperature prote ware on the power connection line between the main control panel, work as when the overtemperature prote ware detected the temperature that generates heat of power connection line and is greater than or equal to the settlement temperature, protection switch disconnection power in the overtemperature prote ware to the main control panel transmission of electricity.
In addition, based on above-mentioned second scheme, the utility model also provides an electric water heater, including each item content in above-mentioned second scheme electric water heater play water power-off protection system.
Implement the utility model discloses the electric water heater of the second scheme goes out water power-off protection system and electric water heater thereof compares with prior art, has following beneficial effect:
when a user uses water, water flow passes through the water flow sensor to send a signal to the display control panel and then is transmitted to the main control panel through the display control panel, after the main control panel receives the signal of the water flow sensor, the main control panel disconnects the strong current output circuit and the weak current output circuit from the power transmission part of the display control panel, and corresponding working electric devices (such as a display screen and an electric heating pipe) of the electric water heater are turned off, so that the safety purpose of 'water outlet and power failure' is achieved; when the user stops using water, the water flow sensor stops outputting signals, the strong current output circuit on the main control panel and the weak current output circuit on the main control panel re-energize the power transmission part of the display control panel, and a leakage protection plug is not required to be configured.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
Fig. 1 is a working schematic diagram of a water outlet power-off protection system of an electric water heater according to a first embodiment of the present invention;
fig. 2 is a working schematic diagram of a water outlet power-off protection system of an electric water heater provided by the second embodiment of the present invention;
the reference numeral, 1 is power plug, 2 is the main control board, 3 is the rivers sensor, 4 is temperature sensor, 5 is electric heating pipe, 6 is display control panel, 7 is first signal connection line, 8 is the second signal connection line, 9 is the signal on-off key, 10 is the overtemperature prote ware.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, a first embodiment of the present invention provides an electric water heater water outlet power-off protection system, which includes a power plug 1, a main control panel 2, a water flow sensor 3, a temperature sensor 4, an electric heating tube 5 and a display control panel 6, wherein the main control panel 2 is provided with a power input circuit, a strong current output circuit, a weak current output circuit and a first signal transceiving circuit, and the display control panel 6 is provided with a second signal transceiving circuit; the power input circuit is connected with the power plug 1 through a power connecting wire; the strong current output circuit is connected with the electric heating tube 5 through a power supply connecting wire and outputs strong current for the electric heating tube 5 to work; the weak current output circuit is respectively connected with the water flow sensor 3, the temperature sensor 4 and the display control panel 6 through power connecting wires and outputs weak current for the work of the water flow sensor 3, the temperature sensor 4 and the display control panel 6; the signal output end of the water flow sensor 3 is connected with a second signal transceiving circuit of the display control panel 6 through a first signal connecting wire 7, the signal output end of the water flow sensor 3 is connected with a first signal transceiving circuit of the main control panel 2 through a second signal connecting wire 8, and the water flow sensor 3 is used for detecting the water outlet flow of the electric water heater and sending a detection signal to the main control panel 2 and the display control panel 6 in real time; the second signal receiving and generating circuit of the display control panel 6 is connected with the first signal receiving and generating circuit of the main control panel 2 through a third signal connecting wire, and the display control panel 6 is used for setting and displaying the real-time running state and the working parameters of the electric water heater; when the water flow sensor 3 detects water flow and the main control board 2 and the display control panel 6 both receive signals of the water flow sensor 3, the strong current output circuit on the main control board 2 is switched off and the weak current output circuit on the main control board 2 is synchronously switched off to the power transmission part of the display control panel 6; when the water flow sensor 3 does not detect water flow, the strong electric output circuit on the main control board 2 and the weak electric output circuit on the main control board 2 re-energize the power transmission portion of the display control panel 6.
It can be seen that when a user uses water, water flow passes through the water flow sensor 3 to send out signals and synchronously transmits the signals to the main control panel 2 and the display control panel 6, after the main control panel 2 and the display control panel 6 both receive the signals of the water flow sensor 3, the main control panel 2 disconnects the strong current output circuit and the weak current output circuit from the power transmission part of the display control panel 6, and corresponding working electric devices (such as a display screen and an electric heating pipe 5) of the electric water heater are extinguished, so that the safety purpose of water outlet power failure is achieved; when the user stops using water, the water flow sensor 3 stops outputting signals, the strong current output circuit on the main control panel 2 and the weak current output circuit on the main control panel 2 re-energize the power transmission part of the display control panel 6, and a leakage protection plug is not required to be configured.
Illustratively, a signal output end of the temperature sensor 4 is connected with a first signal transceiving circuit of the main control panel 2 through a signal connecting line, the temperature sensor 4 is used for detecting the water temperature of the liner of the electric water heater and sending a detection signal to the main control panel 2 in real time, when the temperature sensor 4 detects that the water temperature of the liner of the electric water heater is lower than a set temperature and the electric water heater stops using water, a strong current output circuit on the main control panel 2 is powered on, and the electric heating pipe 5 works until the water temperature of the liner of the electric water heater reaches the set temperature, and then heating is stopped.
Illustratively, a signal switch key 9 is arranged on the display control panel 6, and the signal switch key 9 is connected with the first signal connecting line 7. The signal switch key 9 can be used for a user to select or close the water outlet and power off functions, and the use experience of the user is improved.
Illustratively, an over-temperature protector 10 is arranged on a power connection line between the power plug 1 and the main control panel 2, and when the over-temperature protector 10 detects that the heating temperature of the power connection line is greater than or equal to a set temperature, a protection switch in the over-temperature protector 10 cuts off a power supply to transmit power to the main control panel 2, so as to further improve the safety of the electric water heater.
In addition, based on above-mentioned embodiment one, the utility model also provides an electric water heater, including each item content in above-mentioned embodiment one electric water heater goes out water power-off protection system. The design enables the electric water heater to have all the advantages of the water outlet power-off protection system of the electric water heater.
Referring to fig. 2, a second embodiment of the present invention provides an electric water heater water outlet power-off protection system, which includes a power plug 1, a main control panel 2, a water flow sensor 3, a temperature sensor 4, an electric heating tube 5 and a display control panel 6, wherein the main control panel 2 is provided with a power input circuit, a strong current output circuit, a weak current output circuit and a first signal transceiving circuit, and the display control panel 6 is provided with a second signal transceiving circuit; the power input circuit is connected with the power plug 1 through a power connecting wire; the strong current output circuit is connected with the electric heating tube 5 through a power supply connecting wire and outputs strong current for the electric heating tube 5 to work; the weak current output circuit is respectively connected with the water flow sensor 3, the temperature sensor 4 and the display control panel 6 through power connecting wires and outputs weak current for the work of the water flow sensor 3, the temperature sensor 4 and the display control panel 6; the signal output end of the water flow sensor 3 is connected with a second signal transceiving circuit of the display control panel 6 through a first signal connecting wire 7, and the water flow sensor 3 is used for detecting the water outlet flow of the electric water heater and sending a detection signal to the display control panel 6 in real time; the second signal receiving and generating circuit of the display control panel 6 is connected with the first signal receiving and transmitting circuit of the main control panel 2 through a second signal connecting wire 8, the display control panel 6 is used for setting and displaying the real-time running state and working parameters of the electric water heater, and meanwhile, the detection signal received from the water flow sensor 3 is sent to the main control panel 2; when the water flow sensor 3 detects water flow and the main control board 2 and the display control panel 6 both receive signals of the water flow sensor 3, the strong current output circuit on the main control board 2 is switched off and the weak current output circuit on the main control board 2 is synchronously switched off to the power transmission part of the display control panel 6; when the water flow sensor 3 does not detect water flow, the strong electric output circuit on the main control board 2 and the weak electric output circuit on the main control board 2 re-energize the power transmission portion of the display control panel 6.
It can be seen that when a user uses water, water flow passes through the water flow sensor 3 to send a signal to the display control panel 6 and then is transmitted to the main control panel 2 through the display control panel 6, after the main control panel 2 receives the signal of the water flow sensor 3, the main control panel 2 disconnects the strong current output circuit and the weak current output circuit from the power transmission part of the display control panel 6, and corresponding working electric devices (such as a display screen and an electric heating pipe 5) of the electric water heater are extinguished, so that the safety purpose of water outlet power failure is achieved; when the user stops using water, the water flow sensor 3 stops outputting signals, the strong current output circuit on the main control panel 2 and the weak current output circuit on the main control panel 2 re-energize the power transmission part of the display control panel 6, and a leakage protection plug is not required to be configured.
Illustratively, a signal output end of the temperature sensor 4 is connected with a first signal transceiving circuit of the main control panel 2 through a signal connecting line, the temperature sensor 4 is used for detecting the water temperature of the liner of the electric water heater and sending a detection signal to the main control panel 2 in real time, when the temperature sensor 4 detects that the water temperature of the liner of the electric water heater is lower than a set temperature and the electric water heater stops using water, a strong current output circuit on the main control panel 2 is powered on, and the electric heating pipe 5 works until the water temperature of the liner of the electric water heater reaches the set temperature, and then heating is stopped.
Illustratively, a signal switch key 9 is arranged on the display control panel 6, and the signal switch key 9 is connected with the first signal connecting line 7. The signal switch key 9 can be used for a user to select or close the water outlet and power off functions, and the use experience of the user is improved.
Illustratively, an over-temperature protector 10 is arranged on a power connection line between the power plug 1 and the main control panel 2, and when the over-temperature protector 10 detects that the heating temperature of the power connection line is greater than or equal to a set temperature, a protection switch in the over-temperature protector 10 cuts off a power supply to transmit power to the main control panel 2, so as to further improve the safety of the electric water heater.
In addition, based on above-mentioned embodiment two, the utility model also provides an electric water heater, including each item content in above-mentioned embodiment two electric water heater goes out water power-off protection system. The design enables the electric water heater to have all the advantages of the water outlet power-off protection system of the electric water heater.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.
Claims (10)
1. A water outlet power-off protection system of an electric water heater is characterized by comprising a power plug, a main control panel, a water flow sensor, a temperature sensor, an electric heating pipe and a display control panel, wherein the main control panel is provided with a power input circuit, a strong current output circuit, a weak current output circuit and a first signal transceiving circuit, and the display control panel is provided with a second signal transceiving circuit;
the power input circuit is connected with the power plug through a power connecting wire; the strong current output circuit is connected with the electric heating tube through a power supply connecting wire and outputs strong current for the electric heating tube to work; the weak current output circuit is respectively connected with the water flow sensor, the temperature sensor and the display control panel through power supply connecting wires and outputs weak current for the work of the water flow sensor, the temperature sensor and the display control panel;
the signal output end of the water flow sensor is connected with the second signal transceiving circuit of the display control panel through a first signal connecting line, the signal output end of the water flow sensor is connected with the first signal transceiving circuit of the main control panel through a second signal connecting line, and the water flow sensor is used for detecting the water outlet flow of the electric water heater and sending a detection signal to the main control panel and the display control panel in real time;
the second signal receiving and generating circuit of the display control panel is connected with the first signal receiving and generating circuit of the main control panel through a third signal connecting wire, and the display control panel is used for setting and displaying the real-time running state and the working parameters of the electric water heater;
when the water flow sensor detects water flow and the main control panel and the display control panel both receive signals of the water flow sensor, a strong current output circuit on the main control panel is switched off and a weak current output circuit on the main control panel is synchronously switched off to a power transmission part of the display control panel; when the water flow sensor does not detect water flow, the strong current output circuit on the main control board and the weak current output circuit on the main control board re-energize the power transmission part of the display control panel.
2. The water outlet power-off protection system of the electric water heater as claimed in claim 1, wherein the signal output end of the temperature sensor is connected with the first signal transceiver circuit of the main control board through a signal connection line, the temperature sensor is used for detecting the water temperature of the liner of the electric water heater and sending a detection signal to the main control board in real time, when the temperature sensor detects that the water temperature of the liner of the electric water heater is lower than a set temperature and the electric water heater stops using water, the strong power output circuit on the main control board is powered on, and the electric heating pipe works until the water temperature of the liner of the electric water heater reaches the set temperature, and then heating is stopped.
3. The water outlet power-off protection system of the electric water heater as claimed in claim 1, wherein the display control panel is provided with a signal switch key for a user to select or turn off the water outlet power-off function, and the signal switch key is connected with the first signal connection line.
4. The water outlet power-off protection system of the electric water heater as claimed in claim 1, wherein an over-temperature protector is disposed on a power connection line between the power plug and the main control board, and when the over-temperature protector detects that the heating temperature of the power connection line is greater than or equal to a set temperature, a protection switch in the over-temperature protector cuts off the power supply to transmit power to the main control board.
5. A water outlet power-off protection system of an electric water heater is characterized by comprising a power plug, a main control panel, a water flow sensor, a temperature sensor, an electric heating pipe and a display control panel, wherein the main control panel is provided with a power input circuit, a strong current output circuit, a weak current output circuit and a first signal transceiving circuit, and the display control panel is provided with a second signal transceiving circuit;
the power input circuit is connected with the power plug through a power connecting wire; the strong current output circuit is connected with the electric heating tube through a power supply connecting wire and outputs strong current for the electric heating tube to work; the weak current output circuit is respectively connected with the water flow sensor, the temperature sensor and the display control panel through power supply connecting wires and outputs weak current for the work of the water flow sensor, the temperature sensor and the display control panel;
the signal output end of the water flow sensor is connected with a second signal transceiving circuit of the display control panel through a first signal connecting line, and the water flow sensor is used for detecting the water outlet flow of the electric water heater and sending a detection signal to the display control panel in real time;
the second signal receiving and generating circuit of the display control panel is connected with the first signal receiving and generating circuit of the main control panel through a second signal connecting wire, and the display control panel is used for setting and displaying the real-time running state and working parameters of the electric water heater and sending the detection signal received from the water flow sensor to the main control panel;
when the water flow sensor detects water flow and the main control panel and the display control panel both receive signals of the water flow sensor, a strong current output circuit on the main control panel is switched off and a weak current output circuit on the main control panel is synchronously switched off to a power transmission part of the display control panel; when the water flow sensor does not detect water flow, the strong current output circuit on the main control board and the weak current output circuit on the main control board re-energize the power transmission part of the display control panel.
6. The water outlet power-off protection system of the electric water heater as claimed in claim 5, wherein the signal output end of the temperature sensor is connected with the first signal transceiver circuit of the main control board through a signal connection line, the temperature sensor is used for detecting the water temperature of the liner of the electric water heater and sending a detection signal to the main control board in real time, when the temperature sensor detects that the water temperature of the liner of the electric water heater is lower than the set temperature and the electric water heater stops using water, the strong power output circuit on the main control board is powered on, and the electric heating pipe works until the water temperature of the liner of the electric water heater reaches the set temperature, and then heating is stopped.
7. The water outlet power-off protection system of the electric water heater as claimed in claim 5, wherein the display control panel is provided with a signal switch key for a user to select or turn off the water outlet power-off function, and the signal switch key is connected with the first signal connection line.
8. The water outlet power-off protection system of the electric water heater as claimed in claim 5, wherein an over-temperature protector is disposed on the power connection line between the power plug and the main control board, and when the over-temperature protector detects that the heating temperature of the power connection line is greater than or equal to a set temperature, the protection switch in the over-temperature protector cuts off the power supply to transmit power to the main control board.
9. An electric water heater, characterized in that, includes the electric water heater water-outlet power-off protection system of any claim 1 ~ 4.
10. An electric water heater comprising the water outlet power-off protection system of any one of claims 5 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920828021.0U CN210374100U (en) | 2019-05-31 | 2019-05-31 | Water outlet power-off protection system of electric water heater and electric water heater thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920828021.0U CN210374100U (en) | 2019-05-31 | 2019-05-31 | Water outlet power-off protection system of electric water heater and electric water heater thereof |
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| Publication Number | Publication Date |
|---|---|
| CN210374100U true CN210374100U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920828021.0U Active CN210374100U (en) | 2019-05-31 | 2019-05-31 | Water outlet power-off protection system of electric water heater and electric water heater thereof |
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| Country | Link |
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| CN (1) | CN210374100U (en) |
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2019
- 2019-05-31 CN CN201920828021.0U patent/CN210374100U/en active Active
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Effective date of registration: 20220113 Address after: 528513 east of Yangxi Avenue, Yanghe town (Renhe), Gaoming District, Foshan City, Guangdong Province Patentee after: GUANGDONG VANWARD ELECTRIC Co.,Ltd. Address before: 528524 No. 601, Yangxi Avenue, Yanghe Town, Gaoming District, Foshan City, Guangdong Province Patentee before: GUANGDONG VANBO ELECTRIC Co.,Ltd. |