CN204494837U - Electric heater - Google Patents
Electric heater Download PDFInfo
- Publication number
- CN204494837U CN204494837U CN201520098731.4U CN201520098731U CN204494837U CN 204494837 U CN204494837 U CN 204494837U CN 201520098731 U CN201520098731 U CN 201520098731U CN 204494837 U CN204494837 U CN 204494837U
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- electric heater
- module
- detection
- electrical leakage
- control unit
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Abstract
The utility model discloses a kind of electric heater, this electric heater comprise communication power supply, heating module, detection of electrical leakage button, for live wire electric current and the neutral line current of communication power supply are detected detection of electrical leakage module, for perform heating module and communication power supply the power control module switching on and off action, for judging whether electric heater leaks electricity according to live wire electric current and neutral line current, and control the central control unit of the state that switches on and off of heating module and communication power supply according to judged result; The detection input of detection of electrical leakage module is connected with the live wire of communication power supply and zero line, it detects output and is connected with the signal input part of central control unit, the signal input part of central control unit is also connected with detection of electrical leakage button, the control output end of central control unit is connected with power control module, and power control module is also connected with the power end of communication power supply and heating module.The utility model can reduce potential safety hazard of leaking electricity.
Description
Technical field
The utility model relates to household electrical appliance technical field, particularly a kind of electric heater.
Background technology
Charging member (as the heater) use for a long time of electric heater there will be aging, the aging generation that may cause drain conditions of charging member, and whether user can not detect electric heater and can leak electricity in the process using electric heater, thus make user produce safety worries to product, also there is potential safety hazard simultaneously.
In prior art, following two kinds are mainly contained to the electrical leakage detecting method of electric heater: (one) uses the attaching plug of band earth leakage protective device; (2) leakage protection module is set on the power panel of electric heater, when leakage protection module detects that electric heater leaks electricity, cuts off the power supply of heater, thus ensure the safety of user.But, the defect that said method () exists is: earth leakage protective device is arranged on attaching plug, but the installation site of supply socket is usually all higher, thus make user operation very inconvenient, and be all mechanical switch usually for performing the parts of earth leakage protective action in this earth leakage protective device, and when the number of operations of mechanical switch is too much, easily occurs misoperation or be failure to actuate, thus there is certain potential safety hazard; And the defect that said method (two) exists is: leakage protection module is arranged on power panel; only when leakage protection module detects electric leakage; just cut off the power supply of heater; this guard method belongs to a kind of passive protection method; and whether leakage protection module itself is working properly; user initiatively can not carry out detection validation to it, there is potential safety hazard, makes user produce safety worries to product.
Utility model content
Main purpose of the present utility model is to provide the higher electric heater of a kind of security performance.
For achieving the above object, the utility model provides a kind of electric heater, described electric heater comprises communication power supply, heating module, for the detection of electrical leakage module detected live wire electric current and the neutral line current of described communication power supply, for exporting the detection of electrical leakage button of detection of electrical leakage push button signalling, for performing the power control module switching on and off action of described heating module and described communication power supply, described heating module and described communication power supply is connected for controlling described power control module according to the power on signal of described detection of electrical leakage push button signalling or described electric heater, and judge whether described electric heater leaks electricity according to described live wire electric current and described neutral line current, and export the control end of corresponding control signal to described power control module to control the central control unit of the state that switches on and off of described heating module and described communication power supply according to judged result, wherein,
The detection input of described detection of electrical leakage module is connected with the live wire of described communication power supply and zero line respectively, the detection output of described detection of electrical leakage module is connected with the signal input part of described central control unit, the signal input part of described central control unit is also connected with described detection of electrical leakage button, the control output end of described central control unit is connected with the control end of described power control module, and described power control module is also connected with the power end of described communication power supply and described heating module.
Preferably, described electric heater also comprises the display module for showing detection of electrical leakage result; Described display module is connected with described central control unit.
Preferably, the signal input part of described central control unit is connected with the detection output of described detection of electrical leakage module, the described live wire electric current that described central control unit detects according to described detection of electrical leakage module and described neutral line current, calculate the difference between currents of described live wire electric current and described neutral line current, and judge whether described difference between currents is greater than preset security electric current, if, then described central control unit judges that described electric heater leaks electricity, and export the control end controlling signal to described power control module accordingly, to control the disconnection action that described power control module performs described heating module and described communication power supply, and control described display module show described electric heater electric leakage, otherwise described central control unit judges that described electric heater does not leak electricity, and control described display module and show described electric heater and do not leak electricity.
Preferably, described display module comprises the first indicator lamp of being used to indicate the electric leakage of described electric heater and is used to indicate the second indicator lamp that described electric heater do not leak electricity; Described first indicator lamp is all connected with described central control unit with described second indicator lamp.
Preferably, described display module also comprises and is used to indicate the 3rd indicator lamp that described electric heater is in detection of electrical leakage state; Described 3rd indicator lamp is connected with described central control unit.
Preferably, described detection of electrical leakage button is touch key.
Preferably, described preset security electric current is 0.01A.
Preferably, described detection of electrical leakage button is located on the control panel of described electric heater.
Preferably, described first indicator lamp, the second indicator lamp and the 3rd indicator lamp are all located on the control panel of described electric heater.
The electric heater that the utility model provides, comprise communication power supply, heating module, for the detection of electrical leakage module detected live wire electric current and the neutral line current of communication power supply, for exporting the detection of electrical leakage button of detection of electrical leakage push button signalling, for performing the power control module switching on and off action of heating module and communication power supply, heating module and communication power supply is connected for controlling power control module according to the power on signal of described detection of electrical leakage push button signalling or electric heater, and judge whether electric heater leaks electricity according to live wire electric current and described neutral line current, and export the control end of corresponding control signal to power control module to control the central control unit of the state that switches on and off of heating module and communication power supply according to judged result, the detection input of detection of electrical leakage module is connected with the live wire of communication power supply and zero line respectively, the detection output of detection of electrical leakage module is connected with the signal input part of central control unit, the signal input part of central control unit is also connected with detection of electrical leakage button, the control output end of central control unit is connected with the control end of power control module, and power control module is also connected with the power end of communication power supply and heating module.The utility model electric heater is owing to having set up detection of electrical leakage button, thus make user can press detection of electrical leakage button at any time to carry out active detecting at any time to the drain conditions of electric heater, make the utility model electric heater relative to electric heater of the prior art, security performance is higher, reduce the electric leakage potential safety hazard of product, also substantially eliminating the safety worries of user to product; Meanwhile, the utility model also has structure advantage that is simple and that easily realize.
Accompanying drawing explanation
Fig. 1 is the circuit modular structure schematic diagram of the utility model electric heater preferred embodiment.
The realization of the utility model object, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of electric heater.
With reference to the circuit modular structure schematic diagram that Fig. 1, Fig. 1 are the preferred embodiments of the utility model electric heater.
In the present embodiment, this electric heater comprises communication power supply 101, heating module 102, detection of electrical leakage button 103, detection of electrical leakage module 104, central control unit 105, power control module 106 and display module 107.
Wherein, described communication power supply 101, for carrying heating-supplied supply voltage for described heating module 102;
Described heating module 102, for heating the water in the present embodiment inner container of electric water heater;
Described detection of electrical leakage button 103, for exporting a detection of electrical leakage push button signalling;
Described detection of electrical leakage module 104, for detecting the live wire electric current of described communication power supply 101 and neutral line current, and exports the live wire electric current detected and neutral line current to described central control unit 105;
Described central control unit 105, described heating module 102 and described communication power supply 101 is connected for controlling described power control module 106 according to the described detection of electrical leakage push button signalling of detection of electrical leakage button 103 output or the power on signal of the present embodiment electric heater, and the live wire electric current to detect according to described detection of electrical leakage module 104 and described neutral line current judge whether the present embodiment electric heater leaks electricity, and export the control end of corresponding control signal to described power control module 106 according to judged result and switch on and off state with what control described heating module 102 and described communication power supply 101,
Described power control module 106, switches on and off action for what perform described heating module 102 and described communication power supply 101;
Described display module 107, for showing the detection of electrical leakage result of the present embodiment electric heater.
In the present embodiment, the detection input of described detection of electrical leakage module 104 is connected with the live wire of described communication power supply 101 and zero line respectively, the detection output of described detection of electrical leakage module 104 is connected with the signal input part of described central control unit 105, the signal input part of described central control unit 105 is also connected with described detection of electrical leakage button 103, the control output end of described central control unit 105 is connected with the control end of described power control module 106, described power control module 106 is also connected with the power end of described communication power supply 101 and described heating module 102, described display module 107 is also connected with described central control unit 105.
Particularly, in the present embodiment, the signal input part of described central control unit 105 is connected with the detection output of described detection of electrical leakage module 104, the live wire electric current of the described communication power supply 101 that described central control unit 105 detects according to described detection of electrical leakage module 104 and neutral line current, calculate the difference between currents of described live wire electric current and described neutral line current, and judge whether described difference between currents is greater than preset security electric current, if whether described difference between currents is greater than preset security electric current, then described central control unit 105 judges that the present embodiment electric heater leaks electricity, and export the control end controlling signal to described power control module 106 accordingly, to control the disconnection action that described power control module 106 performs described heating module 102 and described communication power supply 101, and control described display module 107 show the present embodiment electric heater electric leakage, if whether described difference between currents is less than or equal to preset security electric current, then described central control unit 105 judges that the present embodiment electric heater does not leak electricity, and controls described display module 107 and show the present embodiment electric heater and do not leak electricity.
In the present embodiment, described display module 107 comprises the first indicator lamp (not shown) of being used to indicate the electric leakage of the present embodiment electric heater and is used to indicate the second indicator lamp (not shown) that the present embodiment water heater do not leak electricity.Described first indicator lamp is all connected with described central control unit 105 with described second indicator lamp.
Particularly, in the present embodiment, when described first indicator lamp is lighted, represent the electric leakage of the present embodiment water heater, need to point out user's the present embodiment electric heater to overhaul; When described second indicator lamp is lighted, represent the present embodiment water heater and do not leak electricity, can use safely to point out user's the present embodiment electric heater.
Further, in the present embodiment, described display module 107 also comprises and is used to indicate the 3rd indicator lamp (not shown) that the present embodiment electric heater is in detection of electrical leakage state; Described 3rd indicator lamp is connected with described central control unit 105.Namely, in the present embodiment, when described 3rd indicator lamp is lighted, represent the present embodiment electric heater and carry out detection of electrical leakage work.
In the present embodiment, described detection of electrical leakage button 103 is touch key.Described preset security electric current is 0.01A.The first indicator lamp, the second indicator lamp and the 3rd indicator lamp in described detection of electrical leakage button 103 and described display module 107 are all located on the control panel of the present embodiment electric heater, user-friendly.
The operation principle of the present embodiment electric heater specifically describes as follows: when the drain conditions that the present embodiment electric heater powers on or user presses described detection of electrical leakage button 103 pairs of the present embodiment electric heaters detects, namely when central control unit 105 receives the power on signal of the present embodiment electric heater or receives detection of electrical leakage push button signalling that described detection of electrical leakage button 103 sends, described central control unit 105 controls signal to the control end of described power control module 106 accordingly by exporting, to control the ON Action (namely allowing described heating module 102 be in heating work state) that described power control module 106 performs described heating module 102 and described communication power supply 101, simultaneously, described 3rd indicator lamp that described central control unit 105 controls in described display module 107 is lighted, prompting user the present embodiment electric heater carries out detection of electrical leakage work, and described detection of electrical leakage module 104 detects the live wire electric current of described communication power supply 101 and neutral line current, and export the live wire electric current detected and neutral line current to described central control unit 105, the described live wire electric current that described central control unit 105 detects according to described detection of electrical leakage module 104 and neutral line current, calculate the difference between currents of described live wire electric current and described neutral line current, and judge whether described difference between currents is greater than 0.01A (i.e. preset security electric current), if the difference between currents of described live wire electric current and described neutral line current is greater than 0.01A, then described central control unit 105 judges that the present embodiment electric heater leaks electricity, and export the control end controlling signal to described power control module 106 accordingly, to control the disconnection action that described power control module 106 performs described heating module 102 and described communication power supply 101, and described first indicator lamp controlled in described display module 107 is lighted (electric leakage of prompting user the present embodiment electric heater), if the difference between currents of described live wire electric current and described neutral line current is less than or equal to 0.01A, then described central control unit 105 judges that the present embodiment electric heater does not leak electricity, and described second indicator lamp controlled in described display module 107 is lighted (prompting user the present embodiment electric heater does not leak electricity, and user can use this electric heater safely).
In sum, the present embodiment electric heater, the current differential of the described live wire electric current that described central control unit 105 is detected by described detection of electrical leakage module 104 and neutral line current, judge whether described heating module 102 exists current leakage, if the current differential of described live wire electric current and neutral line current is greater than default safe current, then described central control unit 105 cuts off the power supply of described heating module 102 by described power control module 106, is namely performed the disconnection action of described heating module 102 and described communication power supply 101 by described power control module 106; Meanwhile, described first indicator lamp that described central control unit 105 controls in described display module 107 is lighted, and the electric leakage of prompting user the present embodiment electric heater, informs that user's the present embodiment electric heater needs maintenance; If the current differential of described live wire electric current and neutral line current is less than or equal to default safe current, the second indicator lamp that then described central control unit 105 controls in described display module 107 is lighted, prompting user the present embodiment electric heater does not leak electricity, and user can use this electric heater safely.
In addition, it should be noted that, the present embodiment electric heater, if user is not for a long time not according to (when user carries out active detecting to the drain conditions of the present embodiment electric heater for a long time) during described detection of electrical leakage button 103, described detection of electrical leakage module 104 can detect the live wire electric current of described communication power supply 101 and neutral line current always, as long as when the current differential that described central control unit 105 determines described live wire electric current and described neutral line current is greater than preset security electric current (when determining the electric leakage of the present embodiment electric heater), then described central control unit 105 will export the control end controlling signal to described power control module 106 accordingly, the cut-out action of described heating module 102 and described communication power supply 101 is performed by described power control module 106, simultaneously, the electric leakage of the present embodiment electric heater is shown by described first indicator lamp in described display module 107, inform that user's the present embodiment electric heater needs maintenance.
The electric heater that the present embodiment provides, comprise communication power supply, heating module, for the detection of electrical leakage module detected live wire electric current and the neutral line current of communication power supply, for exporting the detection of electrical leakage button of detection of electrical leakage push button signalling, for performing the power control module switching on and off action of heating module and communication power supply, heating module and communication power supply is connected for controlling power control module according to the power on signal of described detection of electrical leakage push button signalling or electric heater, and judge whether electric heater leaks electricity according to live wire electric current and described neutral line current, and export the control end of corresponding control signal to power control module to control the central control unit of the state that switches on and off of heating module and communication power supply according to judged result, and for showing the display module of detection of electrical leakage result, the detection input of detection of electrical leakage module is connected with the live wire of communication power supply and zero line respectively, the detection output of detection of electrical leakage module is connected with the signal input part of central control unit, the signal input part of central control unit is also connected with detection of electrical leakage button, the control output end of central control unit is connected with the control end of power control module, and power control module is also connected with the power end of communication power supply and heating module, described display module is connected with described central control unit.The present embodiment electric heater is owing to having set up detection of electrical leakage button and the display module for showing detection of electrical leakage result on the control panel, thus make user can press detection of electrical leakage button at any time to carry out active detecting at any time to the drain conditions of electric heater, and by display module display detection of electrical leakage result, user is detected the electrical safety (i.e. drain conditions) of the present embodiment electric heater at any time easily, user can observe the Electrical Safety state (i.e. detection of electrical leakage result) of the present embodiment electric heater easily simultaneously, thus make the present embodiment electric heater relative to electric heater of the prior art, security performance is higher, reduce the electric leakage potential safety hazard of product, also substantially eliminating the safety worries of user to product, meanwhile, the present embodiment also has structure advantage that is simple and that easily realize.
These are only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (9)
1. an electric heater, it is characterized in that, comprise communication power supply, heating module, for the detection of electrical leakage module detected live wire electric current and the neutral line current of described communication power supply, for exporting the detection of electrical leakage button of detection of electrical leakage push button signalling, for performing the power control module switching on and off action of described heating module and described communication power supply, described heating module and described communication power supply is connected for controlling described power control module according to the power on signal of described detection of electrical leakage push button signalling or described electric heater, and judge whether described electric heater leaks electricity according to described live wire electric current and described neutral line current, and export the control end of corresponding control signal to described power control module to control the central control unit of the state that switches on and off of described heating module and described communication power supply according to judged result, wherein,
The detection input of described detection of electrical leakage module is connected with the live wire of described communication power supply and zero line respectively, the detection output of described detection of electrical leakage module is connected with the signal input part of described central control unit, the signal input part of described central control unit is also connected with described detection of electrical leakage button, the control output end of described central control unit is connected with the control end of described power control module, and described power control module is also connected with the power end of described communication power supply and described heating module.
2. electric heater as claimed in claim 1, it is characterized in that, described electric heater also comprises the display module for showing detection of electrical leakage result; Described display module is connected with described central control unit.
3. electric heater as claimed in claim 2, it is characterized in that, the signal input part of described central control unit is connected with the detection output of described detection of electrical leakage module, the described live wire electric current that described central control unit detects according to described detection of electrical leakage module and described neutral line current, calculate the difference between currents of described live wire electric current and described neutral line current, and judge whether described difference between currents is greater than preset security electric current, if, then described central control unit judges that described electric heater leaks electricity, and export the control end controlling signal to described power control module accordingly, to control the disconnection action that described power control module performs described heating module and described communication power supply, and control described display module show described electric heater electric leakage, otherwise described central control unit judges that described electric heater does not leak electricity, and control described display module and show described electric heater and do not leak electricity.
4. electric heater as claimed in claim 3, is characterized in that, described display module comprises the first indicator lamp of being used to indicate the electric leakage of described electric heater and is used to indicate the second indicator lamp that described electric heater do not leak electricity; Described first indicator lamp is all connected with described central control unit with described second indicator lamp.
5. electric heater as claimed in claim 4, is characterized in that, described display module also comprises and is used to indicate the 3rd indicator lamp that described electric heater is in detection of electrical leakage state; Described 3rd indicator lamp is connected with described central control unit.
6. electric heater as claimed in claim 5, it is characterized in that, described detection of electrical leakage button is touch key.
7. electric heater as claimed in claim 3, it is characterized in that, described preset security electric current is 0.01A.
8. electric heater as claimed in claim 6, it is characterized in that, described detection of electrical leakage button is located on the control panel of described electric heater.
9. electric heater as claimed in claim 5, it is characterized in that, described first indicator lamp, the second indicator lamp and the 3rd indicator lamp are all located on the control panel of described electric heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520098731.4U CN204494837U (en) | 2015-02-10 | 2015-02-10 | Electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520098731.4U CN204494837U (en) | 2015-02-10 | 2015-02-10 | Electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204494837U true CN204494837U (en) | 2015-07-22 |
Family
ID=53574147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520098731.4U Withdrawn - After Issue CN204494837U (en) | 2015-02-10 | 2015-02-10 | Electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204494837U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654596A (en) * | 2015-02-10 | 2015-05-27 | 芜湖美的厨卫电器制造有限公司 | Electric water heater |
| CN105180449A (en) * | 2015-07-30 | 2015-12-23 | 广东威博新能源供暖供水设备有限公司 | Electric water heater control system with visualization safety self-checking function |
-
2015
- 2015-02-10 CN CN201520098731.4U patent/CN204494837U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654596A (en) * | 2015-02-10 | 2015-05-27 | 芜湖美的厨卫电器制造有限公司 | Electric water heater |
| CN104654596B (en) * | 2015-02-10 | 2018-03-30 | 芜湖美的厨卫电器制造有限公司 | Electric heater |
| CN105180449A (en) * | 2015-07-30 | 2015-12-23 | 广东威博新能源供暖供水设备有限公司 | Electric water heater control system with visualization safety self-checking function |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150722 Effective date of abandoning: 20180330 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150722 Effective date of abandoning: 20180330 |