CN108375196B - Leakage protection system for water outlet power failure - Google Patents
Leakage protection system for water outlet power failure Download PDFInfo
- Publication number
- CN108375196B CN108375196B CN201810372425.3A CN201810372425A CN108375196B CN 108375196 B CN108375196 B CN 108375196B CN 201810372425 A CN201810372425 A CN 201810372425A CN 108375196 B CN108375196 B CN 108375196B
- Authority
- CN
- China
- Prior art keywords
- module
- water flow
- leakage
- power supply
- water
- 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.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 129
- 238000001514 detection method Methods 0.000 claims abstract description 36
- 230000001012 protector Effects 0.000 claims abstract description 28
- 230000005355 Hall effect Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/28—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a leakage protection system for water outlet and power failure, which relates to the field of electrical safety and comprises: the device comprises a leakage protector, a low-voltage power supply module and a water flow detection module; the low-voltage power supply module is used for supplying power to the water flow detection module; the water flow detection module is used for detecting water flow, when water flow is detected, a water flow signal is sent out, the leakage protector receives the signal and then cuts off the power supply.
Description
Technical Field
The invention relates to the technical field of leakage protectors, in particular to a leakage protection system for water outlet power failure.
Background
With the improvement of living standard, the popularization rate of the domestic water heater is also higher, and the electric shock event of using the water heater is frequent, so that the water heater needs a leakage protector to protect the safety of users, and the existing leakage protector has a plurality of defects.
The leakage protection device with the ground wire live protection disclosed in the Chinese invention CN3178492A comprises three poles of a phase line L, a zero line N and a ground wire E with switches, a zero sequence current transformer passing through the phase line L and the zero line N, a test circuit, a release, a rectifying circuit, a power supply voltage reducing circuit and a silicon controlled rectifier, and is further provided with a current detector and a dual-input-end amplifier, wherein one end of a primary coil of the current detector is connected with the ground wire E, the other end of the primary coil of the current detector is connected with the zero line N after being connected with a large-resistance current limiting voltage reducing circuit in series, a secondary coil of the current detector is connected with one input end of the dual-input-end amplifier, two output ends of the dual-input-end amplifier are respectively connected with trigger electrodes of two silicon controlled rectifiers, and the output end of the zero sequence current transformer is connected with the other input end of the dual-input-end amplifier; although the invention can detect whether the zero line, the live line and the ground line leak electricity at the same time, the invention only cuts off the power supply when the leakage electricity occurs, and certain hysteresis exists, for example, the leakage electricity occurs at the moment of water outlet of the water heater, the invention detects the leakage electricity and then finishes the action of cutting off the power supply, and the time is enough for a user of the electric water heater.
The invention CN106440393A discloses an intelligent water outlet power-off control system and method, and relates to the technical field of safety protection, wherein the control system comprises: the water flow sensor is in signal connection with the power supply module and is used for detecting the water outlet state of the electric water heater and sending detection information to the power supply module in real time; the water flow sensor is any one of a Hall water flow sensor, a water flow switch and a water pressure sensor; and the power supply module is in communication connection with the plug of the leakage protector and is used for controlling the power-on and power-off of the plug of the leakage protector according to the detection result of the water flow sensor. According to the intelligent water outlet power-off control system and method, when water flow exists in the water heater, tripping protection of the leakage protector is controlled, and all connecting wires of a power supply of the water heater are synchronously cut off; the invention can cut off the power supply when the water heater discharges water, but the invention can only cut off the power supply by the leakage protector, and the invention also needs to be internally provided with modules such as a battery, signal conversion and the like, thereby increasing the number of elements and reducing the reliability.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the defects existing in the prior art, the household appliance has lower use safety.
2. Technical proposal
In order to solve the above problems, a leakage protection system for water outlet and power failure is provided, comprising: the device comprises a leakage protector, a low-voltage power supply module and a water flow detection module;
the low-voltage power supply module is used for supplying power to the water flow detection module;
the water flow detection module is used for detecting water flow, when the water flow is detected, a water flow signal is sent out, and the power supply is disconnected after the leakage protector receives the water flow signal.
Wherein, the earth leakage protector includes:
the action module is used for executing the switching-off or switching-on of the power supply;
the leakage protection control module is used for controlling the action module to be disconnected or connected with the power supply;
the leakage detection module is used for detecting whether the earth wire, the live wire and the zero line are leaked or not, and when the leakage is detected, a leakage signal is sent out, and after the leakage control module receives the leakage signal, the leakage control module controls the action module to disconnect the power supply.
The leakage protector further comprises a port module, and the water flow detection module is in communication connection with the leakage protection control module through the port module.
The leakage protector further comprises a temperature detection module, wherein the temperature detection module is used for detecting the temperature between the pins and the socket, when the temperature exceeds a preset value, a high-temperature signal is sent out, and after the leakage protection control module receives the high-temperature signal, the leakage protection control module controls the action module to disconnect the power supply.
The leakage protector further comprises an alternating current input module, the alternating current input module is connected with the mains supply, the alternating current input module is further electrically connected with the low-voltage power supply module and the action module respectively, and the alternating current input module is used for providing alternating current.
After the leakage protector receives the water flow signal and cuts off the power supply, when the water flow detection module cannot detect the water flow, the water flow detection module stops sending the water flow signal, and the leakage protector is electrified again.
The low-voltage power supply module is also used for supplying power to the drain protection control module.
The leakage protection system further comprises a load temperature display module, wherein the load temperature display module is used for displaying the temperature of liquid in a load.
The load temperature display module comprises a display module and a load temperature sensor, wherein the load temperature sensor is used for detecting the temperature of liquid in a load, and the display module is used for displaying the temperature detected by the load temperature sensor.
The low-voltage power supply module is also used for supplying power to the load temperature display module.
The port module comprises a signal isolation module, wherein the signal isolation module is used for electrically isolating an input end and an output end of a signal.
3. The beneficial effects of the invention are that
Compared with the prior art, when the water flow is detected by the water flow detection module, the water flow signal is sent out, the leakage protector cuts off the power supply after receiving the signal, so that the water outlet and power failure can be realized, the signal conversion module is omitted, and the low-voltage power module is used for directly supplying power to the water flow detection module, so that the water flow detection device does not need to be provided with a built-in battery, and the water flow detection device is simpler in structure and lower in cost.
Drawings
FIG. 1 is a diagram of the connection of the main modules of the present invention;
FIG. 2 is a diagram of the primary connections of the modules of the present invention;
FIG. 3 is a circuit diagram of an action module of the present invention;
FIG. 4 is a circuit diagram of a drain protection control module of the present invention;
FIG. 5 is a circuit diagram of a leakage detection module according to the present invention;
FIG. 6 is a circuit diagram of a port module of the present invention;
FIG. 7 is a circuit diagram of a temperature detection module of the present invention;
FIG. 8 is a circuit diagram of an AC input module of the present invention;
FIG. 9 is a circuit diagram of a low voltage power supply module of the present invention;
fig. 10 is a circuit diagram of a display module of the present invention.
Detailed Description
The following describes in further detail the embodiments of the present invention with reference to the drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
Example 1:
as shown in fig. 1 to 9, the present invention is applied to a water heater, and in this embodiment, a water flow detection module adopts a hall effect water flow sensor and installs the hall effect water flow sensor at a water outlet of the water heater;
after power-on, the alternating current input module provides working voltages for the action module, the electric leakage detection module and the low-voltage power supply module, and the low-voltage power supply module provides working voltages for the electric leakage protection control module, the Hall effect water flow sensor and the temperature detection module, so that a battery is not required to be arranged for supplying power to the water flow sensor;
when the mutual inductor ZCT1 or the mutual inductor ZCT2 detects a leakage signal, the singlechip U1 sends a leakage signal to the singlechip U2, and after receiving the leakage signal, the singlechip U2 controls the tripping coil RL2 to cut off the power supply of the water heater; if the ground wire is leaked, an LED lamp DL2 in the alternating current input module can be lightened to remind a user that the ground wire is electrified;
after the leakage signal disappears, a user needs to manually press the switch S1 to reset, the power is supplied again after the reset, and then the singlechip U2 controls the power-on coil RL1 to be connected with the power supply of the water heater, so that the safety is further improved;
when the Hall effect water flow sensor detects water flow, the Hall effect water flow sensor sends a water flow signal to the singlechip U2 through the optocoupler OPTO1, and after the singlechip U2 receives the water flow signal, the tripping coil RL2 is controlled to cut off the power supply of the water heater; after the water flow signal disappears for 5 minutes, the singlechip U2 controls the power-on coil RL1 to be connected with the power supply of the water heater; the invention does not need the process of signal conversion, thereby omitting a signal conversion module and a communication module, saving the cost and increasing the reliability; the traditional water heater is powered off by the electromagnetic valve after water is discharged, and the leakage protector is directly powered off after water is discharged, so that the water outlet power off effect can be achieved, the electromagnetic valve is omitted, and the water heater is safer
When the temperature sensor RT1 detects that the temperature between the pin and the socket exceeds a preset value, the temperature sensor RT1 sends a high-temperature signal to the singlechip U2, and after the singlechip U2 receives the high-temperature signal, the tripping coil RL2 is controlled to cut off the power supply of the water heater.
Example 2:
in the embodiment, the load temperature sensor adopts a water temperature sensor and is arranged in a water tank of the water heater;
as shown in fig. 10, a port CON2 is electrically connected with the low-voltage power supply module, a port CON1 is electrically connected with the water temperature sensor, the water temperature sensor sends the detected water temperature in the water tank of the water heater to a singlechip U4, and the singlechip U4 controls a nixie tube DS1 to display the temperature detected by the water temperature sensor;
when the power supply of the water heater is disconnected by the electric leakage protector, the water heater cannot work, so that the water temperature in the water tank cannot be displayed, and the user cannot know the water temperature, so that the water temperature sensor and the display module are powered by the power supply module, and the water temperature sensor and the display module can display the temperature when the water heater cannot work, so that the water temperature can be known by the user, and the water temperature sensor is more convenient to use.
The above embodiments are only for illustrating the present invention, not for limiting the present invention, and various changes and modifications may be made by one of ordinary skill in the relevant art without departing from the spirit and scope of the present invention, and therefore, all equivalent technical solutions are also within the scope of the present invention, and the scope of the present invention is defined by the claims.
Claims (4)
1. A leakage protection system for water out and power down, the leakage protection system comprising: the device comprises a leakage protector, a low-voltage power supply module and a water flow detection module;
the water flow detection module adopts a Hall effect water flow sensor and is arranged at a water outlet of the water heater;
the leakage protector includes:
the action module is used for executing the switching-off or switching-on of the power supply of the water heater;
the leakage protection control module is used for controlling the action module to cut off or switch on a water heater power supply;
the leakage detection module is used for detecting whether the ground wire, the live wire and the zero wire are leaked or not, and when the leakage is detected, the leakage detection module sends out a leakage signal, and after the leakage control module receives the leakage signal, the leakage control module controls the action module to disconnect the power supply of the water heater;
the leakage protector further comprises an alternating current input module, wherein the alternating current input module is connected with a mains supply, and is further electrically connected with the low-voltage power supply module and the action module respectively, and the alternating current input module is used for providing alternating current;
the low-voltage power supply module is used for supplying power to the water flow detection module;
the water flow detection module is used for detecting water flow, when the water flow is detected, the water flow detection module sends out a water flow signal, and the leakage protector receives the water flow signal and then cuts off the power supply of the water heater;
when the Hall effect water flow sensor detects water flow, the Hall effect water flow sensor sends a water flow signal to the singlechip through the optical coupler, and the singlechip controls the tripping coil to cut off the power supply of the water heater after receiving the water flow signal; after the leakage protector receives the water flow signal and cuts off the power supply of the water heater, when the water flow detection module cannot detect water flow, the water flow detection module stops sending the water flow signal, and the leakage protector is electrified again; the singlechip controls the power-on coil to be connected with the power supply of the water heater;
the leakage protection system for water outlet and power failure further comprises a load temperature display module, wherein the load temperature display module is used for displaying the temperature of liquid in a load;
the low-voltage power supply module is also used for supplying power to the load temperature display module;
the load temperature display module comprises a display module and a load temperature sensor, wherein the load temperature sensor is used for detecting the temperature of liquid in a load, and the display module is used for displaying the temperature detected by the load temperature sensor.
2. The leakage protection system for water out and power down according to claim 1, wherein the leakage protector further comprises a port module, and the water flow detection module is communicatively connected to the leakage protection control module through the port module.
3. The leakage protection system of claim 1, wherein the leakage protector further comprises a temperature detection module, the temperature detection module is configured to detect a temperature between the pin and the socket, and when the temperature exceeds a preset value, the temperature detection module sends a high temperature signal, and the leakage protection control module controls the action module to disconnect the power supply after receiving the high temperature signal.
4. The water out and power down leakage protection system of claim 1, wherein said low voltage power module is further configured to power said leakage protection control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810372425.3A CN108375196B (en) | 2018-04-24 | 2018-04-24 | Leakage protection system for water outlet power failure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810372425.3A CN108375196B (en) | 2018-04-24 | 2018-04-24 | Leakage protection system for water outlet power failure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108375196A CN108375196A (en) | 2018-08-07 |
| CN108375196B true CN108375196B (en) | 2024-03-19 |
Family
ID=63032673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810372425.3A Active CN108375196B (en) | 2018-04-24 | 2018-04-24 | Leakage protection system for water outlet power failure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108375196B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245043B (en) * | 2018-09-17 | 2023-09-12 | 余姚市嘉荣电子电器有限公司 | Safe electric leakage protection system |
| CN109066583B (en) * | 2018-09-17 | 2023-09-12 | 余姚市嘉荣电子电器有限公司 | Safe electric leakage protection system |
| CN109945506A (en) * | 2019-03-29 | 2019-06-28 | 广东万博电气有限公司 | A kind of electric heater with water outlet power down function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005008028U1 (en) * | 2005-05-18 | 2005-11-17 | Zippy Technology Corp., Hsin-Tien | Power supply circuit for display panel has domestic power system, low voltage power converter system, and one high voltage power converter system whereby all of them are electrically connected to alternating current source |
| CN103855551A (en) * | 2012-12-06 | 2014-06-11 | 特温斯达国际股份有限公司 | Overheat-Resistant Power Cord and Method |
| CN104521327A (en) * | 2012-04-13 | 2015-04-15 | 丰唐物联技术（深圳）有限公司 | Electrical device with low voltage output and low voltage touch panel |
| CN106440393A (en) * | 2016-12-02 | 2017-02-22 | 余姚市嘉荣电子电器有限公司 | Intelligent effluent outage control system and method |
| CN107270548A (en) * | 2017-08-08 | 2017-10-20 | 广东万家乐燃气具有限公司 | Overtemperature prote control system and electric heater |
| CN208349588U (en) * | 2018-04-24 | 2019-01-08 | 余姚市嘉荣电子电器有限公司 | A kind of leakage protection system of water outlet power-off |
-
2018
- 2018-04-24 CN CN201810372425.3A patent/CN108375196B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202005008028U1 (en) * | 2005-05-18 | 2005-11-17 | Zippy Technology Corp., Hsin-Tien | Power supply circuit for display panel has domestic power system, low voltage power converter system, and one high voltage power converter system whereby all of them are electrically connected to alternating current source |
| CN104521327A (en) * | 2012-04-13 | 2015-04-15 | 丰唐物联技术（深圳）有限公司 | Electrical device with low voltage output and low voltage touch panel |
| CN103855551A (en) * | 2012-12-06 | 2014-06-11 | 特温斯达国际股份有限公司 | Overheat-Resistant Power Cord and Method |
| CN106440393A (en) * | 2016-12-02 | 2017-02-22 | 余姚市嘉荣电子电器有限公司 | Intelligent effluent outage control system and method |
| CN107270548A (en) * | 2017-08-08 | 2017-10-20 | 广东万家乐燃气具有限公司 | Overtemperature prote control system and electric heater |
| CN208349588U (en) * | 2018-04-24 | 2019-01-08 | 余姚市嘉荣电子电器有限公司 | A kind of leakage protection system of water outlet power-off |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108375196A (en) | 2018-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2182603B1 (en) | Intelligent electrical energy management system device | |
| CN108375196B (en) | Leakage protection system for water outlet power failure | |
| CN102780205B (en) | Electric leakage detecting protection circuit | |
| CN109792217A (en) | Intelligent control circuit, charger, earth leakage protective device and intelligent socket | |
| CA2651548A1 (en) | Alternating current power source | |
| CN108387006A (en) | A kind of water heater leakage protection system of double-direction control | |
| CN108933427B (en) | Electric water heater and protection device thereof | |
| CN202940564U (en) | Three-phase leakage circuit breaker | |
| CN102570845A (en) | Singlechip-based automatic voltage conversion system | |
| CN109599833A (en) | Power-on automatic detection leakage protector | |
| CN108400571B (en) | Leakage protector with leakage alarm | |
| CN208349588U (en) | A kind of leakage protection system of water outlet power-off | |
| CN108736439B (en) | Leakage protector | |
| CN111486599A (en) | Electric water heater electric leakage detection system and electric water heater | |
| CN203826922U (en) | An intelligent air switch device | |
| CN208349589U (en) | A kind of water heater leakage protection system of double-direction control | |
| CN109818332B (en) | Leakage protector with ground wire missing protection | |
| CN109599832A (en) | Leakage protector with regular prompt and detection functions | |
| CN109167335B (en) | Safe leakage protection method | |
| CN209960772U (en) | Electric water heater with water outlet and power off functions | |
| CN208094162U (en) | A kind of earth leakage protective device of leakage-current alarm | |
| CN220692874U (en) | Isolated equipment | |
| CN109245043B (en) | Safe electric leakage protection system | |
| CN211701460U (en) | Leakage protector for water heater | |
| CN208431955U (en) | A kind of anticreep water leakage control system and water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |