CN109595821A - Electric heater and its security protection system - Google Patents
Electric heater and its security protection system Download PDFInfo
- Publication number
- CN109595821A CN109595821A CN201710945094.3A CN201710945094A CN109595821A CN 109595821 A CN109595821 A CN 109595821A CN 201710945094 A CN201710945094 A CN 201710945094A CN 109595821 A CN109595821 A CN 109595821A
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- China
- Prior art keywords
- light
- leakage
- signal
- water heater
- electric water
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- 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.)
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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
- H02H3/14—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 occurrence of voltage on parts normally at earth potential
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- 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)
- Control Of Resistance Heating (AREA)
Abstract
The invention discloses a kind of electric heater and its security protection system, the security protection system includes: electric leakage display component, and electric leakage display component includes electric leakage indicator light, and the display component that leaks electricity issues display light by electric leakage indicator light when electric heater leaks electricity；Light-receiving component, the corresponding electric leakage display component setting of light-receiving component, light-receiving component generate the first electric leakage signal to receive display light, and when receiving display light；Whether the input current of intelligent plug, intelligent plug real-time monitoring electric heater is abnormal, and the second electric leakage signal is generated when input current is abnormal；Controllable switch components；Main control unit, main control unit are connected with light-receiving component, intelligent plug and controllable switch components respectively, and main control unit is when receiving the first electric leakage signal and the second electric leakage signal by control controllable switch components so that the heater of electric heater powers off.System of the invention, structure is simple, is easier to realize, can be improved the safety of electric heater.
Description
Technical field
The present invention relates to electric heater technical field, in particular to the security protection system of a kind of electric heater and a kind of electricity
Water heater.
Background technique
Current storage-type electric water heater, the mode for mostly using indicator light to show greatly is come when carrying out electric leakage prompt, but leaking electricity
Electric heater is still normal access power supply, and naturally there are biggish security risks for this.
Summary of the invention
The present invention is directed to solve one of the technical problem in above-mentioned technology at least to a certain extent.For this purpose, of the invention
One purpose is to propose a kind of security protection system of electric heater, can not only carry out electric leakage prompt, additionally it is possible in electric heating
The heating circuit that electric heater is automatically cut off when hydrophone leaks electricity greatly improves the safety of electric heater, and the safety
Guard system structure is simple, is easier to realize.
Second object of the present invention is to propose a kind of electric heater.
In order to achieve the above objectives, first aspect present invention embodiment proposes a kind of security protection system of electric heater,
The system includes: electric leakage display component, and the electric leakage display component includes electric leakage indicator light, and the electric leakage display component is described
Display light is issued by the electric leakage indicator light when electric heater leaks electricity；Light-receiving component, the light-receiving component are corresponding
Electric leakage display component setting, the light-receiving component is to receive the display light, and when receiving the display light
Generate the first electric leakage signal；Whether the input current of intelligent plug, electric heater described in the intelligent plug real-time monitoring occurs
It is abnormal, and the second electric leakage signal is generated when the input current is abnormal；Controllable switch components；Main control unit, the master
Control unit is connected with the light-receiving component, the intelligent plug and the controllable switch components respectively, and the main control unit exists
By controlling the controllable switch components so that the electricity when receiving first electric leakage signal and second electric leakage signal
The heater of water heater powers off.
The security protection system of electric heater according to an embodiment of the present invention is indicated by the electric leakage in electric leakage display component
Lamp issues display light when electric heater leaks electricity, and is leaked electricity and believed according to the display photogenerated first by light-receiving component
Number, and the second electric leakage signal is generated when input current is abnormal by intelligent plug, main control unit can according to this first
Electric leakage signal and the second electric leakage signal control controllable switch components as a result, can not only so that the heater of electric heater powers off
Carry out electric leakage prompt, additionally it is possible to which the heating circuit that electric heater is automatically cut off when electric heater leaks electricity substantially increases
The safety of electric heater, and the security protection system structure is simple, is easier to realize.
In addition, the security protection system of the electric heater proposed according to that above embodiment of the present invention can also have it is following attached
The technical characteristic added:
Further, the electric leakage display component further includes the first signal lamp, first signal lamp and institute
Electric leakage indicator light series connection is stated, the light-receiving component corresponds to the first signal lamp setting, so as in the electric heater
The display light that first signal lamp issues is received when leaking electricity.
Further, the electric leakage display component further includes the first current-limiting resistance, first current-limiting resistance and the leakage
It is connected between electricity-insulation wall water pipe and ground after electric indicator light series connection, wherein described anti-electric when the electric heater leaks electricity
Loop of electric leakage is formed between insulation wall water pipe and ground.
Further, the electric leakage display component further includes second signal indicator light, the second current-limiting resistance and third current limliting
Resistance, the second signal indicator light are connected with second current-limiting resistance, the electric leakage indicator light and third current limliting electricity
It is in parallel with the concatenated second signal indicator light and second current-limiting resistance after resistance series connection.
Wherein, the light-receiving component correspond to the electric leakage indicator light and the second signal indicator light setting, so as to
When the electric heater leaks electricity while receiving the display light that the second signal indicator light and the electric leakage indicator light issue.
Wherein, the light-receiving component is light-inductive device.
Optionally, the controllable switch components include the heating relay of the corresponding heater setting, wherein the master
Control unit controls the heating relay when receiving first electric leakage signal and second electric leakage signal and disconnects.
Optionally, the controllable switch components include power supply relay, and the power supply relay is arranged in the electric hot water
On the power panel of device, wherein the main control unit is receiving first electric leakage signal and the second electric leakage signal time control
The power supply relay is made to disconnect so that the power panel powers off.
Wherein, the power supply relay is three pole relays, double-pole relay or monopole L relay.
In order to achieve the above objectives, second aspect of the present invention embodiment proposes a kind of electric heater comprising according to this hair
The security protection system for the electric heater that bright above-described embodiment proposes.
Electric heater according to an embodiment of the present invention can not only carry out electric leakage prompt, additionally it is possible to certainly when leaking electricity
Dynamic cutting heating circuit, safety are higher.
Detailed description of the invention
Fig. 1 is the block diagram according to the security protection system of the electric heater of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram according to the security protection system of the electric heater of one embodiment of the invention；
Fig. 3 is the structural schematic diagram according to the security protection system of the electric heater of second aspect of the present invention embodiment；
Fig. 4 is the structural schematic diagram according to the security protection system of the electric heater of third aspect present invention embodiment；
Fig. 5 is the structural schematic diagram according to the security protection system of the electric heater of fourth aspect present invention embodiment；
Fig. 6 is the structural schematic diagram according to the security protection system of the electric heater of fifth aspect present invention embodiment；
Fig. 7 is the structural schematic diagram according to the security protection system of the electric heater of sixth aspect present invention embodiment；
Fig. 8 is the structural schematic diagram according to the security protection system of the electric heater of seventh aspect present invention embodiment；
Fig. 9 is the structural schematic diagram according to the security protection system of the electric heater of eighth aspect present invention embodiment；
Figure 10 is the structural schematic diagram according to the security protection system of the electric heater of ninth aspect present invention embodiment.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The electric heater of the embodiment of the present invention can be storage-type electric water heater, may include water storage liner, such electric hot water
Device is to the more demanding of security protection.In consideration of it, the embodiment of the present invention propose a kind of electric heater security protection system and
A kind of electric heater.
Fig. 1 is the block diagram according to the security protection system of the electric heater of the embodiment of the present invention.
As shown in Figure 1, the security protection system of the electric heater of the embodiment of the present invention, comprising: electric leakage display component 10, light
Receiving unit 20, controllable switch components 30, main control unit 40 and intelligent plug 50.
Wherein, electric leakage display component 10 includes electric leakage indicator light, leaks electricity display component 10 when electric heater leaks electricity
Display light is issued by electric leakage indicator light；The corresponding electric leakage display component 10 of light-receiving component 20 is arranged, light-receiving component 20 to
Display light is received, and generates the first electric leakage signal when receiving display light；50 real-time monitoring electric heater of intelligent plug it is defeated
Enter whether electric current is abnormal, and generates the second electric leakage signal when input current is abnormal；Main control unit 40 respectively with light
Receiving unit 20, intelligent plug 50 are connected with controllable switch components 30, and main control unit 40 is receiving the first electric leakage signal and
By control controllable switch components 30 so that the heater of electric heater powers off when two electric leakage signals.
In one embodiment of the invention, electric leakage display component 10 may be disposed between electricity-insulation wall water pipe and ground, such as set
It sets on the conducting wire between electricity-insulation wall water pipe and wall, thus when electric heater leaks electricity, between electricity-insulation wall water pipe and ground
Voltage difference can be formed, that is, constitutes the loop of electric leakage that the indicator light that makes to leak electricity issues display light.
In one embodiment of the invention, light-receiving component can be optical inductor, such as photo resistance or photodiode
Equal light-sensitive elements, circuit where it can be made by the variation of resistance value or conducting situation etc. when receiving the signal of display light
Electric current changes, it can generates electric signal, and using the electric signal as the first electric leakage signal.
In one embodiment of the invention, intelligent plug 50 can detect the leakage current of power firestreak and zero curve, for example,
Leakage current can be detected by setting detection of electrical leakage coil, and when detecting that leakage current or leakage current are greater than preset threshold
Generate the second electric leakage signal.
It should be noted that controllable switch components 30 may be provided at any position in electric water heater heating circuit, master control
Module 40, by controlling controllable switch components 30, can be such that heater powers off when receiving electric leakage signal.Specifically
Ground, in one embodiment of the invention, controllable switch components 30 may include the heating relay of corresponding heater setting,
In, main control unit controls heating relay when receiving the first electric leakage signal and the second electric leakage signal and disconnects.Of the invention
In one embodiment, controllable switch components may include power supply relay, and power supply relay is arranged on the power panel of electric heater,
Wherein, main control unit controls power supply relay when receiving the first electric leakage signal and the second electric leakage signal and disconnects so that power panel
Power-off.Wherein, power supply relay can be three pole relays, double-pole relay or monopole L relay.
In one embodiment of the invention, as shown in Fig. 2, electric leakage display component 10 is in addition to including electric leakage indicator light L1
Outside, be connected to after to further include the first current-limiting resistance R1, the first current-limiting resistance R1 connect with electric leakage indicator light L1 electricity-insulation wall water pipe and
Between ground, wherein when electric heater leaks electricity, loop of electric leakage can be formed between electricity-insulation wall water pipe and ground, so as to be leakage
Electric indicator light L1 provides the required power supply that shines.When the indicator light L1 that leaks electricity issues display light, light-receiving component 20, such as photaesthesia
Answer device can be according to display photogenerated electric signal.Intelligent plug 50 (being not shown in the figure, similarly hereinafter) when firewire or zero curve leak electricity,
It can produce leakage current.Power supply of the main control unit 40 after receiving the electric signal and the leakage current, on controllable power plate
The L (fire) of relay, N (zero), three pole E (ground) disconnect, so that the heater of electric heater powers off.
In other embodiments of the invention, as shown in Figure 3 and Figure 4, main control unit 40 is receiving the electric signal and is being somebody's turn to do
After leakage current, it can also be disconnected by controlling the two poles of the earth L, N of power supply relay, or the L monopole by controlling power supply relay
End is opened, so that the heater of electric heater powers off.
The security protection system of electric heater according to an embodiment of the present invention is indicated by the electric leakage in electric leakage display component
Lamp issues display light when electric heater leaks electricity, and is leaked electricity and believed according to the display photogenerated first by light-receiving component
Number, and the second electric leakage signal is generated when input current is abnormal by intelligent plug, main control unit can according to this first
Electric leakage signal and the second electric leakage signal control controllable switch components as a result, can not only so that the heater of electric heater powers off
Carry out electric leakage prompt, additionally it is possible to which the heating circuit that electric heater is automatically cut off when electric heater leaks electricity substantially increases
The safety of electric heater, and the security protection system structure is simple, is easier to realize.
In one embodiment of the invention, as shown in figure 5, electric leakage display component may also include the first signal lamp
L2, the first signal lamp L2 connect with electric leakage indicator light L1, light-receiving component 20, such as also corresponding first signal of light-inductive device
Indicator light L2 setting, to receive the display light of the first signal lamp L2 sending when electric heater leaks electricity.It is leaking electricity
When indicator light L1 and/or the first signal lamp L2 issues display light, light-inductive device can be according to display photogenerated electric signal.Intelligence
Energy plug 50 can produce leakage current when firewire or zero curve leak electricity.Main control unit 40 is receiving the electric signal and is being somebody's turn to do
After leakage current, tri- pole L, N, E of the power supply relay on controllable power plate is disconnected, so that the heater of electric heater is disconnected
Electricity.
In other embodiments of the invention, as shown in Figure 6 and Figure 7, main control unit 40 is receiving the electric signal and is being somebody's turn to do
After leakage current, it can also be disconnected by controlling the two poles of the earth L, N of power supply relay, or the L monopole by controlling power supply relay
End is opened, so that the heater of electric heater powers off.
It is connected in series as a result, by increasing in the loop of electric leakage that is formed between electricity-insulation wall water pipe and ground with the indicator light L1 that leaks electricity
The first signal lamp L2, can prevent because leak electricity indicator light L1 by external light source interference due to cause light-inductive device judge by accident
The case where, improve the reliability of security protection.
In one embodiment of the invention, as shown in figure 8, electric leakage display component may also include second signal indicator light
L3, the second current-limiting resistance R2 and third current-limiting resistance R3, second signal indicator light L3 connect with the second current-limiting resistance R2, and electric leakage refers to
Show in parallel with concatenated second signal indicator light L3 and the second current-limiting resistance R2 after lamp L1 connects with third current-limiting resistance R3.Light connects
Component 20 is received, indicator light L1 and second signal indicator light L3 setting of leaking electricity as described in light-inductive device is corresponding, so as in institute
State when electric heater leaks electricity while receiving the display that the second signal indicator light L3 and the electric leakage indicator light L1 are issued
Light.When the indicator light L1 and/or second signal indicator light L3 that leaks electricity issues display light, light-inductive device can be according to display photogenerated
Electric signal.Intelligent plug 50 can produce leakage current when firewire or zero curve leak electricity.Main control unit 40 is receiving the electricity
After signal, tri- pole L, N, E of the power supply relay on controllable power plate is disconnected, so that the heater of electric heater powers off.
In other embodiments of the invention, as shown in Figure 9 and Figure 10, main control unit 40 is receiving the electric signal and is being somebody's turn to do
After leakage current, it can also be disconnected by controlling the two poles of the earth L, N of power supply relay, or the L monopole by controlling power supply relay
End is opened, so that the heater of electric heater powers off.
It is propped up as a result, by increasing in the loop of electric leakage that is formed between electricity-insulation wall water pipe and ground with where electric leakage indicator light L1
The second signal indicator light L3 branch that road is in parallel can prevent from causing to leak because of indicator light L1 failure of leaking electricity, such as open circuit
Light-inductive device can not generate the case where the first electric leakage signal when electric, further improve the reliability of security protection.
Corresponding above-described embodiment, the present invention also propose a kind of electric heater.
The electric heater of the embodiment of the present invention, the security protection system including the electric heater that the above embodiment of the present invention proposes
System, specific embodiment can refer to above-described embodiment, and to avoid redundancy, details are not described herein.
Electric heater according to an embodiment of the present invention can not only carry out electric leakage prompt, additionally it is possible to certainly when leaking electricity
Dynamic cutting heating circuit, safety are higher.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945094.3A CN109595821A (en) | 2017-09-30 | 2017-09-30 | Electric heater and its security protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710945094.3A CN109595821A (en) | 2017-09-30 | 2017-09-30 | Electric heater and its security protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109595821A true CN109595821A (en) | 2019-04-09 |
Family
ID=65957000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710945094.3A Pending CN109595821A (en) | 2017-09-30 | 2017-09-30 | Electric heater and its security protection system |
Country Status (1)
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| CN (1) | CN109595821A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201129874Y (en) * | 2007-10-11 | 2008-10-08 | 白勇 | Electronic electric protection wall device for electric water heater |
| WO2009153371A1 (en) * | 2008-06-20 | 2009-12-23 | Innoergy Proyectos, S.L. | Liquid-heating device |
| CN101860006A (en) * | 2010-05-07 | 2010-10-13 | 艾欧史密斯(中国)热水器有限公司 | Electric leakage protection device suitable for electric water heater |
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Application publication date: 20190409 |