CN104819559B - Electric heater and its control method - Google Patents
Electric heater and its control method Download PDFInfo
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- CN104819559B CN104819559B CN201510251233.3A CN201510251233A CN104819559B CN 104819559 B CN104819559 B CN 104819559B CN 201510251233 A CN201510251233 A CN 201510251233A CN 104819559 B CN104819559 B CN 104819559B
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Abstract
The invention discloses a kind of electric heater, including：Shell；Inner bag for water storage；Heater；Electrically-controlled component, electrically-controlled component includes：First controllable switch unit；First temperature sensor, the first temperature sensor is used for the temperature for detecting electrically-controlled component environment；Processes temperature signal circuit, processes temperature signal circuit generates the first temperature signal according to the temperature of electrically-controlled component environment；Microprocessor; microprocessor obtains the Current Temperatures of electrically-controlled component local environment according to the first temperature signal; and when the Current Temperatures of electrically-controlled component local environment are more than or equal to the first preset temperature; microprocessor is by controlling the first controllable switch unit so that heating circuit disconnects, to carry out high temperature protection to electrically-controlled component.The electric heater can carry out high temperature protection to the electrically-controlled component in electric heater, improve the service life of electrically-controlled component, and then improve the security and service life of electric heater.The invention also discloses a kind of control method of electric heater.
Description
Technical field
The present invention relates to household electrical appliance technical field, more particularly to a kind of electric heater and a kind of control of electric heater
Method.
Background technology
The electrically-controlled component of usual storage-type electric water heater is installed in electric panel room, but works as in electric panel room and abnormal high temperature occur
When, the aging of electronic component in electrically-controlled component can be accelerated, the service life of electrically-controlled component is reduced, and then reduce electric heater
Reliability.
Accordingly, it would be desirable to be improved to electric heater.
The content of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technological deficiency.
Therefore, it is an object of the present invention to propose a kind of electric heater, can be to the electrically-controlled component in electric heater
High temperature protection is carried out, the service life of electrically-controlled component is improved, and then improve the security and service life of electric heater.
It is another object of the present invention to propose a kind of control method of electric heater.
To reach above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of electric heater, including：Shell；For storing up
The inner bag of water, the inner bag is set in the housing；Heater, the heater is in heating circuit；Electrically-controlled component, institute
Stating electrically-controlled component includes：First controllable switch unit, first controllable switch unit is arranged in the heating circuit；First
Temperature sensor, first temperature sensor is used for the temperature for detecting the electrically-controlled component local environment；Processes temperature signal
Circuit, the processes temperature signal circuit is connected with first temperature sensor, and the processes temperature signal circuit is according to institute
The temperature for stating electrically-controlled component local environment generates the first temperature signal；Microprocessor, the microprocessor respectively with the temperature
Signal processing circuit is connected with first controllable switch unit, and the microprocessor obtains institute according to first temperature signal
The Current Temperatures of electrically-controlled component local environment are stated, and it is pre- more than or equal to first in the Current Temperatures of the electrically-controlled component local environment
If during temperature, the microprocessor is by controlling first controllable switch unit so that the heating circuit disconnects, with to institute
State electrically-controlled component and carry out high temperature protection.
Electric heater according to embodiments of the present invention, the first temperature sensor detects the temperature of electrically-controlled component local environment,
Processes temperature signal circuit generates the first temperature signal according to the temperature of electrically-controlled component local environment, and microprocessor is according to the first temperature
The Current Temperatures of signal acquisition electrically-controlled component local environment are spent, and are more than or equal to the in the Current Temperatures of electrically-controlled component local environment
During one preset temperature, microprocessor is by controlling the first controllable switch unit so that heating circuit disconnects, to enter to electrically-controlled component
Row high temperature protection, it is to avoid make electrically-controlled component work in high temperature environments because electric heater works on, effectively prevent
Electrically-controlled component because work in high temperature environments caused by damage and service life reduction, improve electric heater security and
Service life.
According to one embodiment of present invention, the electrically-controlled component also include alarm unit, the alarm unit with it is described
Microprocessor is connected, wherein, when the Current Temperatures of the electrically-controlled component local environment are more than or equal to first preset temperature,
The microprocessor also controls the alarm unit alert.
According to one embodiment of present invention, when the Current Temperatures of the electrically-controlled component local environment are less than the second default temperature
When spending, the microprocessor closes the alarm unit, wherein, second preset temperature is less than first preset temperature.
According to one embodiment of present invention, the electrically-controlled component also includes：Second controllable switch unit, described second can
Control switch element is arranged in the heating circuit；Second temperature sensor, the second temperature sensor is used to detect described
Water temperature in inner bag, the second temperature sensor is connected with the processes temperature signal circuit, wherein, at the temperature signal
Manage circuit and second temperature signal is generated according to the water temperature in the inner bag, and the second temperature signal is sent to micro- place
Manage device.
According to one embodiment of present invention, the microprocessor is according to the second temperature signal acquisition in inner bag
Current water temperature, wherein, when the electrically-controlled component local environment Current Temperatures be less than first preset temperature and it is described in
When current water temperature in courage is more than or equal to three preset temperatures, the microprocessor is by controlling second controllable switch unit
So that the heating circuit disconnects, until the current water temperature in the inner bag is less than the 4th preset temperature, wherein, the described 4th is pre-
If temperature is less than the 3rd preset temperature；When the Current Temperatures of the electrically-controlled component local environment are less than the described first default temperature
When current water temperature in degree and the inner bag is less than three preset temperature, the microprocessor is by the way that control described first can
Control switch element and second controllable switch unit so that the heating circuit in an ON state.
Preferably, first preset temperature can be 60-70 DEG C, first preset temperature and the second preset temperature it
Difference can be 10-30 DEG C, and the 3rd preset temperature can be 30-80 DEG C, and the 3rd preset temperature is preset with the described 4th
Temperature difference can be 5-10 DEG C.
To reach above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of control method of electric heater, described
Electric heater includes heating circuit and electrically-controlled component, and the electrically-controlled component includes alarm unit, is arranged in the heating circuit
The first controllable switch unit and the second controllable switch unit, the control method comprises the following steps：Detect described automatically controlled group
The temperature of part local environment；First temperature signal is generated according to the temperature of the electrically-controlled component local environment；According to described first
Temperature signal obtains the Current Temperatures of the electrically-controlled component local environment, and in the Current Temperatures of the electrically-controlled component local environment
During more than or equal to the first preset temperature, by controlling first controllable switch unit so that the heating circuit disconnects, with right
The electrically-controlled component carries out high temperature protection.
The control method of electric heater according to embodiments of the present invention, detects the temperature of electrically-controlled component local environment first,
Then the first temperature signal is generated according to the temperature of electrically-controlled component local environment, and electrically-controlled component is obtained according to the first temperature signal
The Current Temperatures of local environment, and when the Current Temperatures of electrically-controlled component local environment are more than or equal to the first preset temperature, lead to
First controllable switch unit of control is crossed so that heating circuit disconnects, to carry out high temperature protection to electrically-controlled component, it is to avoid because of electric heating
Hydrophone works on and makes electrically-controlled component work in high temperature environments, effectively prevent electrically-controlled component because being operated in hot environment
Damaged caused by lower and service life reduction, improve the security and service life of electric heater.
According to one embodiment of present invention, when the Current Temperatures of the electrically-controlled component local environment are more than or equal to described the
During one preset temperature, the alarm unit alert is also controlled.
According to one embodiment of present invention, when the Current Temperatures of the electrically-controlled component local environment are less than the second default temperature
When spending, the alarm unit is closed, wherein, second preset temperature is less than first preset temperature.
According to one embodiment of present invention, the control method of above-mentioned electric heater also includes：Detect in the inner bag
Water temperature, and according in the inner bag water temperature generate second temperature signal；According to the second temperature signal acquisition
Current water temperature in courage；When the Current Temperatures of the electrically-controlled component local environment are less than first preset temperature and the inner bag
When interior current water temperature is more than or equal to three preset temperatures, by controlling second controllable switch unit so that the heating is returned
Road disconnects, until the current water temperature in the inner bag is less than the 4th preset temperature, wherein, the 4th preset temperature is less than described
3rd preset temperature；When the Current Temperatures of the electrically-controlled component local environment are less than in first preset temperature and the inner bag
Current water temperature when being less than three preset temperature, by controlling first controllable switch unit and described second controllable to open
Close unit so that the heating circuit in an ON state.
Preferably, first preset temperature can be 60-70 DEG C, first preset temperature and the second preset temperature it
Difference can be 10-30 DEG C, and the 3rd preset temperature can be 30-80 DEG C, and the 3rd preset temperature is preset with the described 4th
Temperature difference can be 5-10 DEG C.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and be readily appreciated that, wherein：
Fig. 1 is the block diagram of the electric heater according to one embodiment of the invention；
Fig. 2 is the structural representation of the electrically-controlled component according to one embodiment of the invention；
Fig. 3 is the structural representation of the electrically-controlled component according to another embodiment of the present invention；
Fig. 4 is the workflow diagram of the electric heater according to one embodiment of the invention；
Fig. 5 is the structural representation of the electrically-controlled component according to another embodiment of the invention；And
Fig. 6 is the flow chart of the control method of the electric heater according to the embodiment of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only merely illustrative, and
Purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy
It is the relation between itself not indicating discussed various embodiments and/or setting for purposes of simplicity and clarity again.This
Outside, the invention provides various specific techniques and material example, but those of ordinary skill in the art can be appreciated that
The applicable property of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it
" on " structure can include the first and second features and be formed as the embodiment that directly contacts, other feature shape can also be included
Into the embodiment between the first and second features, such first and second feature may not be direct contact.
In the description of the invention, it is necessary to explanation, unless otherwise prescribed and limit, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanically connect or electrical connection or the connection of two element internals, can
To be to be joined directly together, it can also be indirectly connected to by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
The controlling party of the electric heater and electric heater proposed according to embodiments of the present invention described with reference to the accompanying drawings
Method.
Fig. 1 is the block diagram of the electric heater according to one embodiment of the invention.As shown in figure 1, the electric heater
Including shell 10, inner bag 20, heater 30 and electrically-controlled component 40.
Wherein, inner bag 20 is used for water storage, and inner bag 20 is arranged in shell 10, and heater 30 is in heating circuit.It is automatically controlled
Component 40 includes the first controllable switch unit 41, the first temperature sensor 42, processes temperature signal circuit 43 and microprocessor 44,
Wherein, as shown in Fig. 2 the first controllable switch unit 41 is arranged in heating circuit, the first temperature sensor 42 is used to detect electricity
The temperature of the local environment of component 40 is controlled, processes temperature signal circuit 43 is connected with the first temperature sensor 42, processes temperature signal
Circuit 43 according to the temperature of the local environment of electrically-controlled component 40 generate the first temperature signal, microprocessor 44 respectively with temperature signal
Reason circuit 43 is connected with the first controllable switch unit 41, and microprocessor 44 is according to residing for the first temperature signal obtains electrically-controlled component 40
The Current Temperatures of environment, and when the Current Temperatures of the local environment of electrically-controlled component 40 are more than or equal to the first preset temperature, microprocessor
Device 44 is by controlling the first controllable switch unit 41 so that heating circuit disconnects, to carry out high temperature protection to electrically-controlled component 40.
According to one embodiment of present invention, as shown in Fig. 2 electrically-controlled component 40 also includes alarm unit 45, alarm unit
45 are connected with microprocessor 44, wherein, when the Current Temperatures of the local environment of electrically-controlled component 40 are more than or equal to the first preset temperature,
Microprocessor 44 also controls the alert of alarm unit 45.
According to one embodiment of present invention, when the Current Temperatures of the local environment of electrically-controlled component 40 are less than the second preset temperature
When, microprocessor 44 closes alarm unit 45, wherein, the second preset temperature is less than the first preset temperature.
According to another embodiment of the invention, as shown in figure 3, electrically-controlled component 40 also includes the second controllable switch unit 46
With second temperature sensor 47, wherein, the second controllable switch unit 46 is arranged in heating circuit, and second temperature sensor 47 is used
Water temperature in detection inner bag 20, second temperature sensor 47 is connected with processes temperature signal circuit 43, wherein, at temperature signal
Manage circuit 43 and second temperature signal is generated according to the water temperature in inner bag 20, and second temperature signal is sent to microprocessor 44.
According to one embodiment of present invention, microprocessor 44 is according to the current water in second temperature signal acquisition inner bag 20
Temperature, wherein, when the current water temperature that the Current Temperatures of the local environment of electrically-controlled component 40 are less than in the first preset temperature and inner bag 20 is big
When equal to three preset temperatures, microprocessor 44 is by controlling the second controllable switch unit 46 so that heating circuit disconnects, directly
Current water temperature in inner bag 20 is less than the 4th preset temperature, wherein, the 4th preset temperature is less than the 3rd preset temperature；When automatically controlled
The current water temperature that the Current Temperatures of the local environment of component 40 are less than in the first preset temperature and inner bag 20 is less than the 3rd preset temperature
When, microprocessor 44 is by controlling the first controllable switch unit 41 and the second controllable switch unit 46 so that heating circuit is in connects
Logical state.
Preferably, the first preset temperature can be 60-70 DEG C, and the difference of the first preset temperature and the second preset temperature can be
10-30 DEG C, the 3rd preset temperature can be 30-80 DEG C, and the difference of the 3rd preset temperature and the 4th preset temperature can be 5-10 DEG C.
Specifically, as shown in figure 1, electrically-controlled component 40 is arranged between shell 10 and inner bag 20, for controlling heater 30
With switching on and off for power supply, when electric heater energization work and control heater 30 and the power on of electrically-controlled component 40, plus
Hot device 30 is heated to the water in inner bag 20.
Specifically, as shown in figure 3, when electric heater energization work, the first temperature sensor 42 detects automatically controlled in real time
The temperature of the local environment of component 40, and the first temperature signal, the basis of microprocessor 44 are generated by processes temperature signal circuit 43
First temperature signal obtains the Current Temperatures Th of the local environment of electrically-controlled component 40 and it is judged, meanwhile, second temperature is passed
Sensor 47 detects the water temperature in inner bag 20 in real time, and passes through the generation second temperature signal of processes temperature signal circuit 43, microprocessor
Device 44 judges according to the current water temperature Tw in second temperature signal acquisition inner bag 20 and to it.
If the Current Temperatures Th of the local environment of electrically-controlled component 40 is more than or equal to such as 60-70 DEG C of the first preset temperature TSH,
Microprocessor 44 controls the first controllable switch unit 41 to disconnect so that heating circuit disconnects, it is to avoid electric heater works on and led
Cause the temperature of the local environment of electrically-controlled component 40 too high, meanwhile, microprocessor 44 also controls the alert of alarm unit 45.By
Cause the temperature reduction of the local environment of electrically-controlled component 40 in the disconnection of heating circuit, when the temperature of the local environment of electrically-controlled component 40 drops
Low θ 1 such as 10-30 DEG C when, i.e., when the local environment of electrically-controlled component 40 Current Temperatures be less than the second preset temperature (TSH- θ 1) when, it is micro-
Processor 44 closes alarm unit 45, now, and microprocessor 44 is possible to control heater 30 and power on.Only work as electricity
The Current Temperatures Th for controlling the local environment of component 40 is less than the 3rd less than the current water temperature Tw in the first preset temperature TSH and inner bag 20
During preset temperature TSW, microprocessor 44 is by controlling the first controllable switch unit 41 and the second controllable switch unit 46 closure
Make heater 30 and power on, so that heater 30 is heated to the water in inner bag 20.
When the current water temperature in inner bag 20 is more than or equal to the 3rd preset temperature TSW, microprocessor 44 passes through control second
Controllable switch unit 46 is so that heating circuit disconnects, when such as 5-10 DEG C of current water temperature reduction θ 2 in inner bag 20, i.e. inner bag
When current water temperature in 20 is less than the 4th preset temperature (TSW- θ 2), microprocessor 44 just controls the He of the first controllable switch unit 41
Second controllable switch unit 46 is closed again makes heater 30 and power on, so that heater 30 enters to the water in inner bag 20
Row heating.
Further, as shown in figure 4, the course of work of electric heater comprises the following steps：
S101, judges whether the Current Temperatures Th of electrically-controlled component local environment is less than the first preset temperature TSH.If it is,
Perform step S106；If not, performing step S102.
S102, microprocessor controls the first controllable switch unit to disconnect.
S103, microprocessor control alarm unit alert.
S104, judges whether the Current Temperatures Th of electrically-controlled component local environment is less than the second preset temperature (TSH- θ 1).Such as
Fruit is to perform step S105；If not, return to step S103.
S105, microprocessor closes alarm unit, and return to step S101, continues to judge.
S106, judges whether the current water temperature Tw in inner bag is less than the 3rd preset temperature TSW.If it is, performing step
S109；If not, performing step S107.
S107, microprocessor controls the second controllable switch unit to disconnect.
S108, judges whether the current water temperature Tw in inner bag is less than the 4th preset temperature (TSW- θ 2).If it is, returning to step
Rapid S101, continues to judge；If not, return to step S107.
S109, microprocessor controls first, second controllable switch unit closure, and return to step S101, continues to judge.
According to still another embodiment of the invention, as shown in figure 5, electrically-controlled component 40 can not include the second gate-controlled switch list
Member 46, i.e., need to be only the connecting and disconnecting of controllable heating circuit and power supply by the first controllable switch unit 41.
Briefly, when the Current Temperatures Th of the local environment of electrically-controlled component 40 is less than the first preset temperature TSH and inner bag 20
When interior current water temperature Tw is less than the 3rd preset temperature TSW, microprocessor 44 is by controlling the first controllable switch unit 41 to close
Make heater 30 and power on, so that heater 30 is heated to the water in inner bag 20.And when residing for electrically-controlled component 40
The current water temperature Tw that the Current Temperatures Th of environment is more than or equal in the first preset temperature TSH or inner bag 20, which is more than or equal to the 3rd, to be preset
During temperature TSW, microprocessor 44 is by controlling the first controllable switch unit 41 heater 30 is disconnected with power supply.
In summary, electric heater according to embodiments of the present invention, ring residing for the first temperature sensor detection electrically-controlled component
The temperature in border, processes temperature signal circuit generates the first temperature signal, microprocessor according to the temperature of electrically-controlled component local environment
The Current Temperatures of electrically-controlled component local environment are obtained according to the first temperature signal, and in the Current Temperatures of electrically-controlled component local environment
During more than or equal to the first preset temperature, microprocessor is by controlling the first controllable switch unit so that heating circuit disconnects, with right
Electrically-controlled component carries out high temperature protection, it is to avoid makes electrically-controlled component work in high temperature environments because electric heater works on, has
Prevent to effect electrically-controlled component to be reduced because being damaged caused by work in high temperature environments with service life, improve electric heater
Security and service life.
Fig. 6 is the flow chart of the control method of the electric heater according to the embodiment of the present invention.Wherein, electric heater includes adding
Hot loop and electrically-controlled component, electrically-controlled component include alarm unit, the first controllable switch unit for being arranged in heating circuit and the
Two controllable switch units, as shown in fig. 6, the control method of the electric heater comprises the following steps：
S1, detects the temperature of electrically-controlled component local environment.
S2, the first temperature signal is generated according to the temperature of electrically-controlled component local environment.
S3, the Current Temperatures of electrically-controlled component local environment are obtained according to the first temperature signal, and in ring residing for electrically-controlled component
When the Current Temperatures in border are more than or equal to the first preset temperature, by the first controllable switch unit of control so that heating circuit disconnects,
To carry out high temperature protection to electrically-controlled component.
According to one embodiment of present invention, when the Current Temperatures of electrically-controlled component local environment are more than or equal to the first default temperature
When spending, alarm unit alert is also controlled.
According to one embodiment of present invention, when the Current Temperatures of electrically-controlled component local environment are less than the second preset temperature
When, alarm unit is closed, wherein, the second preset temperature is less than the first preset temperature.
According to one embodiment of present invention, the control method of above-mentioned electric heater also includes：Detect the water in inner bag
Temperature, and second temperature signal is generated according to the water temperature in inner bag；According to the current water temperature in second temperature signal acquisition inner bag；When
The current water temperature that the Current Temperatures of electrically-controlled component local environment are less than in the first preset temperature and inner bag, which is more than or equal to the 3rd, to be preset
During temperature, by controlling the second controllable switch unit so that heating circuit disconnects, until the current water temperature in inner bag is less than the 4th
Preset temperature, wherein, the 4th preset temperature is less than the 3rd preset temperature；When the Current Temperatures of electrically-controlled component local environment are less than the
When current water temperature in one preset temperature and inner bag is less than three preset temperatures, by controlling the first controllable switch unit and second
Controllable switch unit so that heating circuit in an ON state.
Preferably, the first preset temperature can be 60-70 DEG C, and the difference of the first preset temperature and the second preset temperature can be
10-30 DEG C, the 3rd preset temperature can be 30-80 DEG C, and the difference of the 3rd preset temperature and the 4th preset temperature can be 5-10 DEG C.
According to the specific example of the present invention, as shown in figure 1, electrically-controlled component is arranged between shell and inner bag, it is used for
Control heater and power supply are switched on and off, when electric heater energization work and electrically-controlled component control heater and power on
When, heater is heated to the water in inner bag.
Specifically, when electric heater energization work, the first temperature sensor detects electrically-controlled component local environment in real time
Temperature, and by the temperature signal of processes temperature signal circuit evolving first, microprocessor obtains electricity according to the first temperature signal
Control the Current Temperatures Th of component local environment and it is judged, meanwhile, second temperature sensor is detected in inner bag in real time
Water temperature, and by processes temperature signal circuit evolving second temperature signal, microprocessor is according to second temperature signal acquisition inner bag
Interior current water temperature Tw is simultaneously judged it.
If the Current Temperatures Th of electrically-controlled component local environment is more than or equal to such as 60-70 DEG C of the first preset temperature TSH, micro-
Processor controls the first controllable switch unit to disconnect so that heating circuit disconnects, it is to avoid electric heater works on and caused automatically controlled
The temperature of component local environment is too high, meanwhile, microprocessor also controls alarm unit alert.Due to heating circuit
The temperature reduction for causing electrically-controlled component local environment is disconnected, when the temperature reduction θ 1 of electrically-controlled component local environment is such as 10-30 DEG C,
I.e. when the Current Temperatures of electrically-controlled component local environment are less than the second preset temperature (TSH- θ 1), it is single that microprocessor closes alarm
Member, now, microprocessor are possible to control heater and power on.Only when the Current Temperatures of electrically-controlled component local environment
When the current water temperature Tw that Th is less than in the first preset temperature TSH and inner bag is less than the 3rd preset temperature TSW, microprocessor passes through control
Making the first controllable switch unit and the second controllable switch unit closure just makes heater and power on, so that heater is to interior
Water in courage is heated.
When the current water temperature in inner bag is more than or equal to the 3rd preset temperature TSW, microprocessor is controllable by control second
Switch element is so that heating circuit disconnection, when the current water temperature reduction θ 2 in inner bag is such as 5-10 DEG C, i.e., current in inner bag
When water temperature is less than the 4th preset temperature (TSW- θ 2), microprocessor, which just controls the second controllable switch unit to close again, makes heater
With power on so that heater is heated to the water in inner bag.
According to still another embodiment of the invention, the control method of above-mentioned electric heater need to only pass through the first gate-controlled switch
Unit is the connecting and disconnecting of controllable heating circuit and power supply.
Briefly, when the Current Temperatures Th of electrically-controlled component local environment is less than in the first preset temperature TSH and inner bag
When current water temperature Tw is less than the 3rd preset temperature TSW, microprocessor is by controlling the first controllable switch unit closure to make heater
With power on so that heater is heated to the water in inner bag.And as the Current Temperatures Th of electrically-controlled component local environment
When being more than or equal to the 3rd preset temperature TSW more than or equal to the current water temperature Tw in the first preset temperature TSH or inner bag, microprocessor
By controlling the first controllable switch unit heater is disconnected with power supply.
The control method of electric heater according to embodiments of the present invention, detects the temperature of electrically-controlled component local environment first,
Then the first temperature signal is generated according to the temperature of electrically-controlled component local environment, and electrically-controlled component is obtained according to the first temperature signal
The Current Temperatures of local environment, and when the Current Temperatures of electrically-controlled component local environment are more than or equal to the first preset temperature, lead to
First controllable switch unit of control is crossed so that heating circuit disconnects, to carry out high temperature protection to electrically-controlled component, it is to avoid because of electric heating
Hydrophone, which works on, makes electrically-controlled component work in high temperature environments, effectively prevent electrically-controlled component because working in high temperature environments
Caused by damage and service life reduction, and then heightened the security and service life of electric heater.
Any process described otherwise above or method description are construed as in flow chart or herein, represent to include
Module, fragment or the portion of the code of one or more executable instructions for the step of realizing specific logical function or process
Point, and the scope of the preferred embodiment of the present invention includes other realization, wherein can not be by shown or discussion suitable
Sequence, including according to involved function by it is basic simultaneously in the way of or in the opposite order, carry out perform function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
Represent in flow charts or logic and/or step described otherwise above herein, for example, being considered use
In the order list for the executable instruction for realizing logic function, it may be embodied in any computer-readable medium, for
Instruction execution system, device or equipment (such as computer based system including the system of processor or other can be held from instruction
The system of row system, device or equipment instruction fetch and execute instruction) use, or combine these instruction execution systems, device or set
It is standby and use.For the purpose of this specification, " computer-readable medium " can any can be included, store, communicate, propagate or pass
Defeated program is for instruction execution system, device or equipment or the dress for combining these instruction execution systems, device or equipment and using
Put.The more specifically example (non-exhaustive list) of computer-readable medium includes following：Electricity with one or more wirings
Connecting portion (electronic installation), portable computer diskette box (magnetic device), random access memory (RAM), read-only storage
(ROM), erasable edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk is read-only deposits
Reservoir (CDROM).In addition, can even is that can be in the paper of printing described program thereon or other are suitable for computer-readable medium
Medium, because can then enter edlin, interpretation or if necessary with it for example by carrying out optical scanner to paper or other media
His suitable method is handled electronically to obtain described program, is then stored in computer storage.
It should be appreciated that each several part of the present invention can be realized with hardware, software, firmware or combinations thereof.Above-mentioned
In embodiment, the software that multiple steps or method can in memory and by suitable instruction execution system be performed with storage
Or firmware is realized.If, and in another embodiment, can be with well known in the art for example, realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, the application specific integrated circuit with suitable combinational logic gate circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
Those skilled in the art are appreciated that to realize all or part of step that above-described embodiment method is carried
Rapid to can be by program to instruct the hardware of correlation to complete, described program can be stored in a kind of computer-readable storage medium
In matter, the program upon execution, including one or a combination set of the step of embodiment of the method.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing module, can also
That unit is individually physically present, can also two or more units be integrated in a module.Above-mentioned integrated mould
Block can both be realized in the form of hardware, it would however also be possible to employ the form of software function module is realized.The integrated module is such as
Fruit is realized using in the form of software function module and as independent production marketing or in use, can also be stored in a computer
In read/write memory medium.
Storage medium mentioned above can be read-only storage, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is by appended claims and its equivalent limits.
Claims (11)
1. a kind of electric heater, it is characterised in that including：
Shell；
For the inner bag of water storage, the inner bag is set in the housing；
Heater, the heater is in heating circuit；
Electrically-controlled component, the electrically-controlled component includes：
First controllable switch unit, first controllable switch unit is arranged in the heating circuit；
First temperature sensor, first temperature sensor is used for the temperature for detecting the electrically-controlled component local environment；
Processes temperature signal circuit, the processes temperature signal circuit is connected with first temperature sensor, the temperature letter
Number process circuit generates the first temperature signal according to the temperature of the electrically-controlled component local environment；
Microprocessor, the microprocessor respectively with the processes temperature signal circuit and the first controllable switch unit phase
Even, the microprocessor obtains the Current Temperatures of the electrically-controlled component local environment according to first temperature signal, and in institute
When the Current Temperatures for stating electrically-controlled component local environment are more than or equal to the first preset temperature, the microprocessor is by controlling described the
One controllable switch unit is so that the heating circuit disconnects, to carry out high temperature protection to the electrically-controlled component.
2. electric heater as claimed in claim 1, it is characterised in that the electrically-controlled component also includes alarm unit, the report
Alert unit is connected with the microprocessor, wherein, the electrically-controlled component local environment Current Temperatures more than or equal to described the
During one preset temperature, the microprocessor also controls the alarm unit alert.
3. electric heater as claimed in claim 2, it is characterised in that when the Current Temperatures of the electrically-controlled component local environment are small
When the second preset temperature, the microprocessor closes the alarm unit, wherein, second preset temperature is less than described the
One preset temperature.
4. the electric heater as any one of claim 1-3, it is characterised in that the electrically-controlled component also includes：
Second controllable switch unit, second controllable switch unit is arranged in the heating circuit；
Second temperature sensor, the second temperature sensor is used to detect the water temperature in the inner bag, and the second temperature is passed
Sensor is connected with the processes temperature signal circuit, wherein, the processes temperature signal circuit is according to the water temperature in the inner bag
Second temperature signal is generated, and the second temperature signal is sent to the microprocessor.
5. electric heater as claimed in claim 4, it is characterised in that the microprocessor is obtained according to the second temperature signal
The current water temperature in the inner bag is taken, wherein,
It is less than the current water in first preset temperature and the inner bag when the Current Temperatures of the electrically-controlled component local environment
When temperature is more than or equal to three preset temperatures, the microprocessor is by controlling second controllable switch unit so that the heating
Loop disconnects, until the current water temperature in the inner bag is less than the 4th preset temperature, wherein, the 4th preset temperature is less than institute
State the 3rd preset temperature；
It is less than the current water in first preset temperature and the inner bag when the Current Temperatures of the electrically-controlled component local environment
When temperature is less than three preset temperature, the microprocessor is by controlling first controllable switch unit and described second can
Control switch element so that the heating circuit in an ON state.
6. electric heater as claimed in claim 5, it is characterised in that first preset temperature is 60-70 DEG C, described first
The difference of preset temperature and the second preset temperature is 10-30 DEG C, and the 3rd preset temperature is 30-80 DEG C, the described 3rd default temperature
The difference of degree and the 4th preset temperature is 5-10 DEG C.
7. a kind of control method of electric heater, it is characterised in that the electric heater includes heating circuit and electrically-controlled component, institute
Stating electrically-controlled component includes alarm unit, the first controllable switch unit being arranged in the heating circuit and the second gate-controlled switch list
Member, the control method comprises the following steps：
Detect the temperature of the electrically-controlled component local environment；
First temperature signal is generated according to the temperature of the electrically-controlled component local environment；
The Current Temperatures of the electrically-controlled component local environment are obtained according to first temperature signal, and in the electrically-controlled component institute
When the Current Temperatures for locating environment are more than or equal to the first preset temperature, by controlling first controllable switch unit so that described add
Hot loop disconnects, to carry out high temperature protection to the electrically-controlled component.
8. the control method of electric heater as claimed in claim 7, it is characterised in that when the electrically-controlled component local environment
When Current Temperatures are more than or equal to first preset temperature, the alarm unit alert is also controlled.
9. the control method of electric heater as claimed in claim 8, it is characterised in that when the electrically-controlled component local environment
When Current Temperatures are less than the second preset temperature, the alarm unit is closed, wherein, second preset temperature is less than described first
Preset temperature.
10. the control method of electric heater as claimed in any one of claims 7-9, it is characterised in that also include：
The water temperature in inner bag is detected, and second temperature signal is generated according to the water temperature in the inner bag；
Current water temperature according to the second temperature signal acquisition in inner bag；
It is less than the current water in first preset temperature and the inner bag when the Current Temperatures of the electrically-controlled component local environment
When temperature is more than or equal to three preset temperatures, by controlling second controllable switch unit so that the heating circuit disconnects, directly
Current water temperature in the inner bag is less than the 4th preset temperature, wherein, the 4th preset temperature, which is less than the described 3rd, to be preset
Temperature；
It is less than the current water in first preset temperature and the inner bag when the Current Temperatures of the electrically-controlled component local environment
Temperature be less than three preset temperature when, by control first controllable switch unit and second controllable switch unit with
Make the heating circuit in an ON state.
11. the control method of electric heater as claimed in claim 10, it is characterised in that first preset temperature is 60-
70 DEG C, the difference of first preset temperature and the second preset temperature is 10-30 DEG C, and the 3rd preset temperature is 30-80 DEG C, institute
The difference for stating the 3rd preset temperature and the 4th preset temperature is 5-10 DEG C.
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| CN201510251233.3A CN104819559B (en) | 2015-05-15 | 2015-05-15 | Electric heater and its control method |
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| CN201510251233.3A CN104819559B (en) | 2015-05-15 | 2015-05-15 | Electric heater and its control method |
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| CN104819559B true CN104819559B (en) | 2017-08-29 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108287515B (en) * | 2018-01-11 | 2020-07-14 | 广东海信家电有限公司 | Control circuit and electric water heater |
| CN109724718A (en) * | 2019-02-26 | 2019-05-07 | 浙江理工大学 | A kind of controllable thermo-electric device and its control method |
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| CN203893398U (en) * | 2014-05-21 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Water-storing electric water heater |
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| CN104110834A (en) * | 2014-04-10 | 2014-10-22 | 芜湖美的厨卫电器制造有限公司 | Electric water heater |
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| JPH11132566A (en) * | 1997-10-29 | 1999-05-21 | Mitsubishi Electric Corp | Electric water heater |
| CN2879015Y (en) * | 2005-05-31 | 2007-03-14 | 美的集团有限公司 | Electric water heater with anion generator |
| CN203731704U (en) * | 2014-01-13 | 2014-07-23 | 芜湖美的厨卫电器制造有限公司 | Dry-burning-prevention device and electric water heater |
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| CN104819559A (en) | 2015-08-05 |
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Effective date of registration: 20230307 Address after: 241000 west side of 3 / F, No.5 office building, new energy and new materials gathering area, Fuzhou Road, Jiangbei District, Wuhu City, Anhui Province Patentee after: Wuhu Midea intelligent kitchen electricity Manufacturing Co.,Ltd. Address before: 241009 Wan Chun East Road, East Wuhu economic and Technological Development Zone, Wuhu, Anhui Patentee before: WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. Co.,Ltd. |
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