CN208349589U - A kind of water heater leakage protection system of double-direction control - Google Patents
A kind of water heater leakage protection system of double-direction control Download PDFInfo
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- CN208349589U CN208349589U CN201820588459.1U CN201820588459U CN208349589U CN 208349589 U CN208349589 U CN 208349589U CN 201820588459 U CN201820588459 U CN 201820588459U CN 208349589 U CN208349589 U CN 208349589U
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Abstract
The utility model discloses a kind of water heater leakage protection systems of double-direction control, are related to electrical safety field, comprising: earth leakage protective device, low voltage power supply module and water heater controller；Earth leakage protective device is used for open or closed power supply；Low voltage power supply module is used to power for water heater controller；The capable of emitting power-off signal of water heater controller, earth leakage protective device disconnect power supply after receiving power-off signal；Compared with prior art, by the capable of emitting power-off signal of water heater controller, after earth leakage protective device receives the signal, control module control action module disconnects the power supply of load, realizes load control earth leakage protective device, safer.
Description
Technical field
The utility model relates to earth leakage protective device technical field more particularly to a kind of water heater earth leakage protectives of double-direction control
System.
Background technique
With the improvement of living standards, the popularity rate of pot-type boiler is also higher and higher, the event got an electric shock using water heater
And it is commonplace, therefore the safety of one earth leakage protective device protection user of water heater needs, and existing earth leakage protective device
There are many deficiencies.
Has the earth leakage protective device of earth wire charged protecting as disclosed in Chinese invention CN3178492A, including each band is opened
The phase line L of pass, zero curve N, tri- pole ground wire E, across the phase line L, zero sequence current mutual inductor of zero curve N, hookup, buckle releaser, whole
It is current circuit, power voltage step down, silicon-controlled, also set up a current detector and double input end amplifier, the primary of current detector
Coil one end is connect with ground wire E, the primary coil other end of current detector concatenate after big resistance value current limliting reduction voltage circuit with zero curve N
Connection, the secondary coil of current detector are connect with an input terminal of double input end amplifier, and the two of double input end amplifier
A output end is connect with two silicon-controlled trigger electrodes respectively, and the output end of zero sequence current mutual inductor accesses double input end amplifier
Another input terminal；Although the utility model can detect simultaneously whether zero curve, firewire and ground wire leak electricity, the utility model is only
Power supply can be disconnected when leaking electricity, there are certain hysteresis qualitys, for example leak electricity in the moment of water outlet of water heater, this is practical
It is novel to detect electric leakage, then complete disconnect power supply movement, this period enough electricity water heater user.
For another example the intelligent water outlet power-off control system of one kind disclosed in Chinese invention CN106440393A and method, are related to
Security protection technology field, the control system include: water flow sensing unit, are connect with power supply module signal, for detecting
The effluent state of electric heater, and will test information in real time and be sent to power supply module；Wherein the water flow sensing unit is suddenly
Any one in your water flow sensing unit, water flow switch and hydraulic pressure sensor；Power supply module is inserted with the earth leakage protective device
Head communication connection controls powering on and breaking for the earth leakage protective device plug for the testing result according to the water flow sensing unit
Electricity.The intelligent water outlet power-off control system and method for the utility model, when there are control earth leakage protective when water flow for water heater
All connecting lines of power supply of device trip protection and turned off in synchronization water heater；Although the utility model can just break in water outlet of water heater
Switch power supply, but the utility model can only be disconnected power supply by earth leakage protective device, and also need internal battery, the moulds such as signal conversion
Block increases number of elements, reduces reliability.
Utility model content
One, technical problems to be solved
For drawbacks described above present in the prior art, the lower problem of the safety in utilization of household electrical appliance.
Two, technical solution
To solve the above problems, providing a kind of water heater leakage protection system of double-direction control, comprising: earth leakage protective
Device, low voltage power supply module and water heater controller；
Earth leakage protective device is used for open or closed power supply；
Low voltage power supply module is used to power for water heater controller；
The capable of emitting power-off signal of water heater controller, earth leakage protective device disconnect power supply after receiving power-off signal.
Wherein, the water heater leakage protection system of double-direction control further includes water flow detection module, and water flow detection module is used for
Water flow is detected, when detecting water flow, water flow detection module issues water-flow signal, and water heater controller is controlled after receiving water-flow signal
Earth leakage protective device processed disconnects power supply；Low voltage power supply module is also used to as the power supply of water flow detection module.
Wherein, the water heater leakage protection system of double-direction control further includes load temperature sensor, load temperature sensor
For detecting the temperature of liquid in water heater and the temperature value that will test is sent to earth leakage protective device or water heater controller；It is low
Voltage source module is also used to as load temperature sensor power supply；
When the temperature value that load temperature sensor detects is more than setting value, earth leakage protective device disconnects power supply.
Wherein, earth leakage protective device includes:
Action module, action module is for executing open or closed power supply；
Control module is protected in leakage, and leakage protects control module and is used for the open or closed power supply of control action module；
Detection of electrical leakage module, detection of electrical leakage module are leaked electricity for detecting whether ground wire, firewire and zero curve leak electricity when detecting
When, detection of electrical leakage module issues electric leakage signal, and after control module reception electric leakage signal is protected in leakage, control module control action mould is protected in leakage
Block disconnects power supply.
Wherein, earth leakage protective device further includes temperature detecting module, and temperature detecting module is for detecting between pin and socket
Temperature, when temperature value be more than preset value when, temperature detecting module issue high temperature signal, leakage protect control module receive high temperature signal
Afterwards, leakage protects control module control action module and disconnects power supply.
Wherein, earth leakage protective device further includes exchange input module, and exchange input module is electrically connected with alternating current, exchange input mould
Block is also electrically connected with low voltage power supply module and action module respectively, and exchange input module is for providing alternating current.
Wherein, after water heater controller receives water-flow signal control earth leakage protective device disconnection power supply, when water flow detects mould
When block can't detect water flow, water flow detection module stops issuing water-flow signal, and earth leakage protective device re-powers.
Wherein, earth leakage protective device further includes port module, and water heater controller protects control module by port module and leakage
Communication connection.
Wherein, the water heater leakage protection system of double-direction control further includes display module, and display module is for showing load
The temperature value that temperature sensor detects.
Wherein, the capable of emitting power on signal of water heater controller, earth leakage protective device power on after receiving power on signal.
Wherein, port module includes signal isolation module, and signal isolation module is used for the input terminal and output end of signal
Carry out electrical isolation.
Wherein, the water heater leakage protection system of double-direction control further includes water flow detection module, and water flow detection module is used for
Water flow is detected, when detecting water flow, water flow detection module issues water-flow signal, and earth leakage protective device disconnects after receiving water-flow signal
Power supply；Low voltage power supply module is also used to as the power supply of water flow detection module.
Three, the beneficial effects of the utility model
Compared with prior art, by the capable of emitting power-off signal of water heater controller, after earth leakage protective device receives the signal,
Control module control action module disconnects the power supply of load, realizes load control earth leakage protective device, safer.
Detailed description of the invention
Fig. 1 is the main modular annexation figure of the embodiments of the present invention 1；
Fig. 2 is the main annexation figure of module of the embodiments of the present invention 1；
Fig. 3 is the action module circuit diagram of the utility model；
Fig. 4 is that control module circuit diagram is protected in the leakage of the utility model；
Fig. 5 is the detection of electrical leakage module circuit diagram of the utility model；
Fig. 6 is the port module circuit diagram of the utility model；
Fig. 7 is the temperature detecting module circuit diagram of the utility model；
Fig. 8 is the exchange input module circuit diagram of the utility model；
Fig. 9 is the low voltage power supply module circuit diagram of the utility model；
Figure 10 is the display module circuit diagram of the utility model；
Figure 11 is the main modular annexation figure of the embodiments of the present invention 2.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment cannot be used to limit the scope of the utility model for illustrating the utility model.
In specific embodiment of the utility model, the utility model is applied on water heater, water flow detection module is adopted
With Hall effect water flow sensing unit, and Hall effect water flow sensing unit is mounted on to the water outlet of water heater；Load temperature sensing
Device uses water temperature sensor, and water temperature sensor is arranged in the water tank of water heater；
Embodiment 1:
As shown in Figures 1 to 9, after powering on, exchange input module is action module, detection of electrical leakage module and low voltage power supply
Module provides operating voltage, and low voltage power supply module is that control module, water heater controller, Hall effect water flow sensing unit are protected in leakage
Operating voltage is provided with temperature detecting module, so that the utility model no setting is required battery is that water flow sensing unit is powered；Water temperature passes
Sensor is electrically connected with water heater controller, and obtains operating voltage from water heater controller.
When mutual inductor ZCT1 or mutual inductor ZCT2 detect electric leakage signal, one is issued from single-chip microcontroller U1 to single-chip microcontroller U2
A electric leakage signal, after single-chip microcontroller U2 receives electric leakage signal, the power supply of control tripping coil RL2 cutting water heater；If it is ground wire
Electric leakage, the LED light DL2 exchanged in input module can be lighted, and remind user's ground wire electrification；
After electric leakage signal disappearance, user needs to be manually pressed by switch S1 and reset, and re-powers after reset, then
Electric coil RL1 connects the power supply of water heater in single-chip microcontroller U2 control, further increases safety；
When Hall effect water flow sensing unit detects water flow, Hall effect water flow sensing unit is issued to water heater controller
Water-flow signal after water heater controller receives water-flow signal, issues power-off signal, monolithic to single-chip microcontroller U2 by optocoupler OPTO1
After machine U2 receives power-off signal, the power supply of control tripping coil RL2 cutting water heater；Traditional water outlet of water heater powers off, and is all
It is disconnected inside water heater by solenoid valve after water outlet, and the utility model is that earth leakage protective device is directly disconnected after water outlet,
It can not only achieve the effect that water outlet power-off, also eliminate solenoid valve, cost is lower, and safer.
Because water heater controller is directly powered by the low voltage power supply in earth leakage protective device, even if water heater is cut
Broken power supply, and water heater controller can still work normally；
It disappears after five minutes in water-flow signal, water heater controller passes through optocoupler OPTO1 telecommunications in single-chip microcontroller U2 sending
Number, electric coil RL1 connects the power supply of water heater in single-chip microcontroller U2 control；So that the utility model is not necessarily to carry out the mistake of signal conversion
Journey has saved cost to eliminate signal conversion module and communication module, increases reliability,
When temperature sensor RT1 detects that the temperature value between pin and socket is more than preset value, temperature sensor RT1
High temperature signal is issued to single-chip microcontroller U2, after single-chip microcontroller U2 receives high temperature signal, the electricity of control tripping coil RL2 cutting water heater
Source.
As shown in Figure 10, port CON2 is electrically connected with low voltage power supply module, and port CON1 is electrically connected with water temperature sensor,
The water temperature in water-heater water tank that water temperature sensor will test is sent to single-chip microcontroller U4, and it is aobvious that single-chip microcontroller U4 controls charactron DS1
Show the temperature that water temperature sensor detects；
After water heater is begun to warm up, heating information can be transmitted to water heater controller by optocoupler OPTO2 by single-chip microcontroller U2, be made
It obtains water heater controller and carries out display lamp number conversion.
When water temperature sensor detects that the water in water heater has been heated to the temperature value of user's setting, water heater control
Device issues power-off signal to single-chip microcontroller U2 by optocoupler OPTO1, and after single-chip microcontroller U2 receives the signal, control tripping coil RL2 is cut
The power supply of disconnected water heater；So that water heater during incubation, is not switched on power supply, user is just without electric shock condition, more
Safety；
When water temperature sensor detect the water in water heater down to need reheat temperature value when, water heater control
Device issues power on signal, after single-chip microcontroller U2 receives power on signal, electric coil RL1 in control to single-chip microcontroller U2 by optocoupler OPTO1
Connect the power supply of water heater.
Embodiment 2:
As shown in figure 11, after powering on, low voltage power supply module provides voltage for water temperature sensor and water heater controller, suddenly
You are electrically connected effect water flow sensing unit with water heater controller, and obtain operating voltage from water heater controller；Water temperature sensor
The temperature value that will test is sent to earth leakage protective device.
When Hall effect water flow sensing unit detects water flow, Hall effect water flow sensing unit issues water to earth leakage protective device
Signal is flowed, after the single-chip microcontroller U2 of earth leakage protective device receives water-flow signal, the power supply of control tripping coil RL2 cutting water heater；
When water temperature sensor detects that the water in water heater has been heated to the temperature value of user's setting, single-chip microcontroller U2 control
The power supply of tripping coil RL2 cutting water heater processed.
Hall effect water flow sensing unit and the signal of water temperature sensor are directly issued and send earth leakage protective device, reduce to hot water
The hardware and software requirement of device controller, also improves the power-off timeliness of earth leakage protective device.
Embodiment of above is merely to illustrate the utility model, and is not limitation of the utility model, related technology neck
The those of ordinary skill in domain, in the case where not departing from the spirit and scope of the utility model, can also make a variety of changes and
Modification, therefore all equivalent technical solutions also belong to the scope of the utility model, the scope of patent protection of the utility model is answered
It is defined by the claims.
Claims (12)
1. a kind of water heater leakage protection system of double-direction control, which is characterized in that the water heater of the double-direction control, which leaks electricity, to be protected
Protecting system includes: earth leakage protective device, low voltage power supply module and water heater controller；
The earth leakage protective device is used for open or closed power supply；
The low voltage power supply module is used to power for the water heater controller；
The capable of emitting power-off signal of water heater controller, the earth leakage protective device disconnect power supply after receiving power-off signal.
2. a kind of water heater leakage protection system of double-direction control as described in claim 1, which is characterized in that the two-way control
The water heater leakage protection system of system further includes water flow detection module, and the water flow detection module works as detection for detecting water flow
When to water flow, the water flow detection module issues water-flow signal, and the water heater controller receives after water-flow signal described in control
Earth leakage protective device disconnects power supply；The low voltage power supply module is also used to as water flow detection module power supply.
3. a kind of water heater leakage protection system of double-direction control as described in claim 1, which is characterized in that the two-way control
The water heater leakage protection system of system further includes load temperature sensor, and the load temperature sensor is for detecting in water heater
The temperature of liquid and the temperature value that will test are sent to the earth leakage protective device or the water heater controller；The low-voltage
Power module is also used to as load temperature sensor power supply；
When the temperature value that load temperature sensor detects is more than setting value, the earth leakage protective device disconnects power supply.
4. a kind of water heater leakage protection system of double-direction control as described in claim 1, which is characterized in that the electric leakage is protected
Protecting device includes:
Action module, the action module is for executing open or closed power supply；
Control module is protected in leakage, and the leakage protects control module for controlling the open or closed power supply of the action module；
Detection of electrical leakage module, the detection of electrical leakage module are leaked electricity for detecting whether ground wire, firewire and zero curve leak electricity when detecting
When, the detection of electrical leakage module issues electric leakage signal, and after control module reception electric leakage signal is protected in the leakage, control mould is protected in the leakage
Block controls the action module and disconnects power supply.
5. a kind of water heater leakage protection system of double-direction control as claimed in claim 4, which is characterized in that the electric leakage is protected
Protecting device further includes temperature detecting module, and the temperature detecting module is used to detect the temperature between pin and socket, works as temperature value
When more than preset value, the temperature detecting module issues high temperature signal, described after control module reception high temperature signal is protected in the leakage
Leakage protects control module and controls the action module disconnection power supply.
6. a kind of water heater leakage protection system of double-direction control as claimed in claim 4, which is characterized in that the electric leakage is protected
Shield device further includes exchange input module, and the exchange input module is electrically connected with alternating current, the exchange input module also respectively with
The low voltage power supply module and action module electrical connection, the exchange input module is for providing alternating current.
7. a kind of water heater leakage protection system of double-direction control as claimed in claim 2, which is characterized in that the water heater
After controller receives the water-flow signal control earth leakage protective device disconnection power supply, when the water flow detection module can't detect water
When stream, the water flow detection module stops issuing water-flow signal, and the earth leakage protective device re-powers.
8. a kind of water heater leakage protection system of double-direction control as claimed in claim 4, which is characterized in that the electric leakage is protected
Protecting device further includes port module, and the water heater controller is protected control module communication by the port module and the leakage and connected
It connects.
9. a kind of water heater leakage protection system of double-direction control as claimed in claim 3, which is characterized in that the two-way control
The water heater leakage protection system of system further includes display module, and the display module is for showing the load temperature sensor inspection
The temperature value measured.
10. a kind of water heater leakage protection system of double-direction control as described in claim 1, which is characterized in that the hot water
The capable of emitting power on signal of device controller, the earth leakage protective device power on after receiving power on signal.
11. a kind of water heater leakage protection system of double-direction control as claimed in claim 8, which is characterized in that the port
Module includes signal isolation module, and the signal isolation module is used to the input terminal of signal and output end carrying out electrical isolation.
12. a kind of water heater leakage protection system of double-direction control as described in claim 1, which is characterized in that described two-way
The water heater leakage protection system of control further includes water flow detection module, and the water flow detection module works as inspection for detecting water flow
When measuring water flow, the water flow detection module issues water-flow signal, and the earth leakage protective device disconnects power supply after receiving water-flow signal；
The low voltage power supply module is also used to as water flow detection module power supply.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820588459.1U CN208349589U (en) | 2018-04-24 | 2018-04-24 | A kind of water heater leakage protection system of double-direction control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820588459.1U CN208349589U (en) | 2018-04-24 | 2018-04-24 | A kind of water heater leakage protection system of double-direction control |
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| CN208349589U true CN208349589U (en) | 2019-01-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387006A (en) * | 2018-04-24 | 2018-08-10 | 余姚市嘉荣电子电器有限公司 | A kind of water heater leakage protection system of double-direction control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108387006A (en) * | 2018-04-24 | 2018-08-10 | 余姚市嘉荣电子电器有限公司 | A kind of water heater leakage protection system of double-direction control |
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