CN110873359B - Control circuit, method and temperature control equipment - Google Patents
Control circuit, method and temperature control equipment Download PDFInfo
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- CN110873359B CN110873359B CN201811011036.4A CN201811011036A CN110873359B CN 110873359 B CN110873359 B CN 110873359B CN 201811011036 A CN201811011036 A CN 201811011036A CN 110873359 B CN110873359 B CN 110873359B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
Abstract
The embodiment of the invention discloses a control circuit, which comprises: a timer and a controlled switch; the timer includes: a detection device, connectable to the temperature control element, for detecting the electrical signal; the control device is connected with the detection device and used for generating a control signal according to the electric signal; the controlled switch includes: the first end is connected with the control device and used for receiving the control signal; a second end, connectable to a signal source of the temperature control element, for receiving an electrical signal input to the temperature control element; a third terminal, connectable to the temperature control element, for outputting the electrical signal to the temperature control element; and the switching device is respectively connected with the first end, the second end and the third end and is used for switching on the second end and the third end or switching off the second end and the third end according to the control signal. The embodiment of the invention also discloses a control method and temperature control equipment.
Description
Technical Field
The invention relates to the technical field of heaters, in particular to a timing control circuit, a timing control method and temperature control equipment.
Background
At present, the mechanical warmer mainly comprises two timers: electronic timers and mechanical timers. The existing mechanical warmer based on the electronic timer can be started or shut down at a specific time through the timer reservation only in a state that a mechanical switch of the warmer is switched on. The mechanical warmer based on the mechanical timer can only be started or shut down at a specific time through the timer reservation in a state that the mechanical switch of the warmer is switched on; and mechanical type timer adopts dials the tooth structure, need to dial the gear during operation for timing, and the operation is complicated, user experience is poor.
Disclosure of Invention
The invention provides a control circuit, a control method and temperature control equipment.
The technical scheme of the invention is realized as follows:
a control circuit, the circuit comprising: a timer and a controlled switch;
the timer includes:
a detection device, connectable to the temperature control element, for detecting the electrical signal;
the control device is connected with the detection device and used for generating a control signal according to the electric signal;
the controlled switch includes:
the first end is connected with the control device and used for receiving the control signal;
a second end, connectable to a signal source of the temperature control element, for receiving an electrical signal input to the temperature control element;
a third terminal, connectable to the temperature control element, for outputting the electrical signal to the temperature control element;
and the switching device is respectively connected with the first end, the second end and the third end and is used for switching on the second end and the third end or switching off the second end and the third end according to the control signal.
In the above scheme, the circuit further includes: a mechanical switching device connected to a third terminal of the controlled switch;
the input end of the mechanical switching device is connected with the signal source, and the output end of the mechanical switching device is connected with the temperature control element and used for switching on or off the connection between the signal source and the temperature control element.
In the above scheme, the mechanical switching device is: a first type of mechanical switching device having an output terminal including a plurality of output terminals; different output terminals are connected to different temperature control elements, or the number of the temperature control elements connected to different output terminals is different;
the mechanical switching device is: a second type of mechanical switching device having an output terminal; different ones of said temperature control elements are connected to different ones of said second type of mechanical switching devices.
In the above scheme, a first indication element is disposed at an output end of the first type of mechanical switch, where the first indication element is configured to indicate a switch state of the first type of mechanical switch.
In the above scheme, a second indication element is arranged inside the second type of mechanical switch device, wherein the second indication element is used for indicating a switch state of the second type of mechanical switch.
In the above solution, the mechanical switching device connected to the third terminal of the controlled switch includes: the first type of mechanical switch and the second type of mechanical switch;
the input end of the first type of mechanical switch and the input end of the second type of mechanical switch are connected with the signal source, and the output end of the first type of mechanical switch is connected with the first temperature control element; the output end of the second type of mechanical switch is connected with a second temperature control element;
and the connecting branch of the first type mechanical switch and the first temperature control element is connected in parallel with the connecting branch of the second type mechanical switch and the second temperature control element.
In the above scheme, the detecting device is configured to detect electrical signals of at least two of the temperature control elements;
the control device is used for respectively generating the control signals for controlling the electric signal input of the temperature control element according to the respectively detected electric signals.
In the above scheme, the circuit further includes:
and the third indicating element is connected with the third end and is used for indicating the switching state of the controlled switch.
The invention also provides a control method, which comprises the following steps:
generating a control signal according to the electric signal detected by the temperature control element based on the timer;
and controlling the connection between the signal source and the temperature control element to be switched on or off based on the controlled switch according to the control signal.
In the above scheme, the method further comprises:
a mechanical switching device connected to a third terminal of the controlled start terminal, and turned on or off based on an external force applied to the mechanical switching device;
and the signal source is connected or disconnected with the temperature control element based on a mechanical device.
In the above scheme, the mechanical switch device is the first type mechanical switch; the first type of mechanical switch is: a first type of mechanical switching device having an output terminal including a plurality of output terminals; different output terminals are connected to different temperature control elements, or the number of the temperature control elements connected to different output terminals is different;
the turning on or off based on an external force acting on the mechanical switching device includes:
based on the external force, the input terminals of the first type of mechanical switching devices are connected to different ones of the output terminals.
In the above scheme, the mechanical switching device is: a second type of mechanical switching device having an output terminal comprising an output terminal; different ones of said temperature control elements are connected to different ones of a second type of mechanical switching devices;
the turning on or off based on an external force acting on the mechanical switching device includes:
and the second type mechanical switch is used for switching on or off the signal source and the different temperature control elements based on external force acting on different second type mechanical switch devices.
In the above scheme, the method further comprises:
and the first indicating element is connected to the output end of the first mechanical switch and indicates the switch state of the first mechanical switch.
In the above scheme, the method further comprises:
and the second indicating element is connected to the inside of the second type of mechanical switch and indicates the switch state of the second type of mechanical switch.
In the above scheme, the connection between the signal source and the first temperature control element is switched on or off by using a first type of mechanical switch in the mechanical switch device;
connecting or disconnecting the signal source with a second temperature control element by using a second type of mechanical switch in the mechanical switch device;
the first type of mechanical switch and the connecting branch of the first temperature control element are connected in parallel with the connecting branch of the second mechanical switch and the second temperature control element.
In the above solution, the generating the control signal by the timer according to the electric signal of the temperature control element includes: the timer respectively generates the control signals for controlling the electric signals input by the temperature control elements according to the electric signals of at least two temperature control elements.
In the above scheme, the method further comprises:
and the third indicating element is connected to the third end of the controlled switch and indicates the switching state of the controlled switch.
The invention also provides temperature control equipment, which comprises the control circuit in any embodiment of the invention.
The embodiment of the invention provides a control circuit, which comprises a timer and a controlled switch; the detection device of the timer is connected with the temperature control element and is used for detecting an electric signal; generating a control signal according to the electric signal through a control device of a timer and the detection device; and controlling the controlled switch to be switched on and off according to the control signal so as to switch on or off the connection of the temperature control element in a loop, thereby controlling the temperature control element to be in a working or non-working state.
According to the embodiment of the invention, the timing equipment such as a heater and the like can be accurately turned on and off according to the required heating time according to the running state of the temperature control element by detecting the electric signal of the control circuit. Therefore, the automatic shutdown can be realized when the temperature is too high due to long working time of the heater and the like, so that the heater can be controlled not to be overheated, and the problem of too high temperature generated by heating the heater due to the fact that the timer can only be shut down in a blind timing mode within the reserved time is avoided; the problem that the temperature cannot reach the expected temperature due to insufficient heating time can be solved, and the temperature control accuracy and the user use satisfaction are improved. In addition, the temperature control device and the control circuit can automatically start the heater when the temperature of the heater is reduced due to the fact that the heater is in a non-working state for a long time and the heating effect cannot be achieved, so that the defect that the heating effect is poor due to the fact that the timer can only be started in a blind timing mode within the reserved time is overcome. Therefore, the warmer can be accurately controlled to heat the generated temperature.
In addition, the warmer can be accurately turned on and off after the heating time is required, so that excessive power loss caused by overtime heating can be avoided, and a better energy-saving effect can be achieved.
In addition, because the timer in this embodiment is turned on or turned off based on the operating state of the timer device such as the heater, the timer device may not be at an excessively high temperature, thereby reducing the loss of the timer device.
Drawings
FIG. 1 is a schematic diagram of a control circuit according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a mechanical timer according to an embodiment of the present invention;
FIG. 3 is a circuit diagram of an embodiment of a control circuit according to the present invention;
FIG. 4 is a circuit diagram of an embodiment of a control circuit of the present invention;
FIG. 5 is a circuit diagram of an embodiment of a control circuit according to the present invention;
fig. 6 is a schematic diagram of a display interface structure of a timer according to an embodiment of the present invention.
FIG. 7 is a circuit diagram of an embodiment of a control circuit of the present invention;
FIG. 8 is a circuit diagram of an embodiment of a control circuit according to the present invention;
FIG. 9 is a circuit diagram of an embodiment of a control circuit of the present invention;
FIG. 10 is a circuit diagram of an embodiment of a control circuit according to the present invention;
FIG. 11 is a circuit diagram of an embodiment of a control circuit according to the present invention;
Detailed Description
The technical scheme of the invention is further elaborated by combining the drawings and the specific embodiments in the specification.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of implementations of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
At present, the mechanical warmer mainly comprises the following two timers: electronic timers and mechanical timers.
As shown in fig. 1, a schematic diagram of a control circuit based on an electronic timer is provided. As shown in fig. 1, an input end of the timer 01 is connected with a fire wire end L of a signal source, and an output end of the timer is connected with an input end of the temperature controller 02; the signal source may be a 220V ac power source, such as a mains supply or a generator set; the timer 01 is connected to the control circuit, and is equivalent to a timer with a switching function, and can only turn on or off a circuit loop according to the reserved timing time. Therefore, the conventional control based on the electronic timer merely turns on or off the connection between the power supply and the temperature control element 03 at a set time, and does not realize the start or shutdown of the timing devices such as the heater according to the working state of the temperature control element 03.
As shown in fig. 2, a schematic structural diagram of a mechanical timer is provided. In another embodiment, the mechanical timer 10 is connected to the circuit loop instead of the timer 01; like the timer 01 in the above embodiment, the mechanical timer 10 can only switch on or off the connection between the signal source and the temperature control element 03 at the reserved time; besides the timing function, the circuit can be equivalent to a common switching element which can perform on and off. Moreover, based on the timing of the mechanical timer 20, the arrow 101 needs to be shifted to the corresponding gear to shift different numbers of gears to complete the setting of different times, which is very complicated in operation and poor in user experience; moreover, based on the timing of the mechanical timer, the rotation of the gear can bring noises, which seriously disturb users, affect the mood of the users and are very unfriendly to the users.
Based on the problems of the known timing control circuit, the embodiment of the invention provides a control circuit, which can be applied to timing equipment such as a mechanical warmer and the like, and can at least partially solve the problems of the timer in the control circuit. The implementation, functional features and advantages of the control circuit of the present invention will be further explained with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
An embodiment of the present invention provides a schematic diagram of a control circuit, where the control circuit may be applied to a mechanical warmer, as shown in fig. 3, the control circuit includes: a timer 11 and a controlled switch 12;
the timer 11 comprises a detection device 1101 and a control device 1102; wherein the detection device 1101 is connectable to a temperature control element for detecting an electrical signal; the control device 1102 is connected with the detection device 1101 and is used for generating a control signal according to the electric signal;
the controlled switch 12 comprises a first terminal, a second terminal, a third terminal and a switching device; wherein the first terminal is connected to the control device 1102 for receiving the control signal; the second end can be connected with a signal source of the temperature control element and is used for receiving an electric signal input to the temperature control element; the third end can be connected with the temperature control element and is used for outputting the electric signal to the temperature control element; the switching device is respectively connected with the first terminal, the second terminal and the third terminal, and is used for switching on the second terminal and the third terminal or switching off the second terminal and the third terminal according to the control signal.
Optionally, the detecting device 1101 includes a first detecting terminal for receiving an electrical signal inputted by the temperature control element.
The detection device 1101 in this embodiment may be various types of electronic components. The detection device 1101 may include various impedance elements, such as resistors.
Wherein the detection device may comprise a voltmeter for detecting a voltage across the temperature control element; generally, when detecting that the voltage across the temperature control element is greater than a set first threshold value, the temperature control element is in a conducting state, i.e. in a working state; and when the voltage across the temperature control element is detected to be 0 or less than a set second threshold value, the temperature control element is in a turn-off state, namely in a non-working state.
Wherein the detection means may comprise a current meter for detecting the current flowing through the temperature control element; typically, the temperature control element is in an active state when it is detected that the current flowing through the temperature control element is greater than a set third threshold; and when the current flowing through the temperature control element is detected to be smaller than a set fourth threshold value, the temperature control element is in a non-working state.
In another embodiment, the detection device 1101 may be replaced by a detection circuit, which may determine whether the temperature control element is in an operating state based on detecting an electrical signal of the temperature control element. Generally, when the detected electric signal can be high or low level of 50Hz, the temperature control element is in working state; when the electric signal is detected to be low level all the time, the temperature control element is in a non-working state.
The control device 1102 may be any of a variety of devices capable of generating control signals, such as an embedded controller, a microcontroller, a digital signal controller, a programmable array, or the like.
The controlled switch 12 may be any type of switching device controlled by other devices, such as a Metal Oxide Semiconductor (MOS) transistor.
The signal source can be 220V AC power supply, or other AC power supply capable of providing proper voltage for the control circuit.
The temperature control element comprises a plurality of temperature control elements connected in series or in parallel; the temperature control element can be used for heating or cooling.
Optionally, the temperature control element may be a heating element; the heating element can be a quartz tube heating element, a halogen tube heating element, a metal tube heating element, a heating wire heating element, or other heating elements.
The control circuit provided in this embodiment can implement turning on and off of the controlled switch according to the electrical signal input by the temperature control element, that is, the control circuit can generate a feedback control signal by monitoring the operating state of the temperature control element, thereby completing the timing turning on and off of the temperature control element.
In this embodiment, the control signal is generated by detecting the electrical signal, for example, the time length for turning off the power supply at regular time can be determined according to the time length of the voltage in the electrical signal at the high and low levels in one voltage variation period; or the time length of timing startup can be determined according to the time length of the voltage in the electric signal in a voltage change period at a low level, so that the temperature control element can be heated to a certain time to realize automatic shutdown; or when the temperature control element is in a non-working state for a certain time, the temperature control element is automatically switched on, so that the timer can be prevented from blindly switching off or switching on the controlled switch based on preset time, the temperature generated by timing equipment can be better controlled, and better energy saving can be realized.
As illustrated in fig. 4, the circuit may further include: a mechanical switching device 13 connected to a third terminal of the controlled switch;
wherein, the input end of the mechanical switching device 13 is connected with the controlled switch, and the output end of the mechanical switching device 13 is connected with the temperature control element; the mechanical switching device 13 is used to turn on or off the connection of the signal source and the temperature control element.
Alternatively, the mechanical switch device 13 may be various mechanical switches that are turned on or off manually or manually, such as various rotary switches or rocker switches; the input of the mechanical switching device comprises an input terminal and the output of the mechanical switching device comprises an output terminal; or the input of the mechanical switching device comprises one input terminal and the output of the mechanical switch comprises a plurality of output terminals.
In one embodiment, the mechanical switching device is: a first type mechanical switch device with an output end comprising a plurality of output terminals; different ones of the output terminals are connected to different ones of the temperature control elements, or the number of the temperature control elements connected to different ones of the output terminals is different.
Therefore, the mechanical switch device can select different output terminals, so that different temperature control elements are connected in a conducting loop to be in a working state, and the temperature control effects of different grades are realized.
For example, the first type of mechanical switching device includes: four different output terminals, a first output terminal, a second output terminal, a third output terminal, and a fourth output terminal; the first output terminal is connected to a first temperature control element, the second output terminal is connected to a second temperature control element, the third output terminal is connected to the first temperature control element and the second temperature control element, and the fourth output terminal is open-circuit (i.e., open-circuit) connected. Therefore, different output terminals can be selectively conducted to realize that different temperature control elements are connected in the conducting loop. For example, when the input terminal of the first type mechanical switch selects the first output terminal for connection, the connection with the first temperature control element is realized, and when the controlled switch is turned on, the temperature control adjustment of the first level can be realized. For another example, when the second output terminal is selected to be connected, the connection with the second temperature control element is realized, and when the controlled switch is turned on, the temperature control adjustment of the second level can be realized. For another example, when the third output terminal is selected to be connected, the first temperature control element and the second temperature control element are simultaneously connected, and temperature control adjustment of a third level can be realized. Thus, different levels of temperature control adjustment can be achieved. The temperature control with different temperature adjusting power or different temperature adjusting speed is realized through the difference of the different or the number of the conducted temperature control elements.
In another embodiment, the mechanical switching device is: a second type of mechanical switching device having an output terminal; different ones of said temperature control elements are connected to different ones of said second type of mechanical switching devices.
The control circuit provided in this embodiment can realize the on and off of the controlled switch according to the detected electric signal under the condition that the mechanical switch device is on, that is, the control circuit generates a feedback control signal by monitoring the running state of the temperature control element, thereby completing the timing on and off of the temperature control element.
In the embodiment, the electronic timer can be applied to mechanical timing equipment such as a mechanical warmer by using the controlled switch and the mechanical switch device together, so as to realize the on and off of the mechanical timing equipment; also, different levels of temperature control or adjustment of other functions may be achieved.
As shown in fig. 5, when the mechanical switch device 13 is a first type mechanical switch device 1301, a first indicating element 1501 is disposed at an output end of the first type mechanical switch 1301, wherein the first indicating element 1501 is used for indicating a switch state of the first type mechanical switch.
Here, the first indicating member 1501 may be specifically used to indicate an operation state of the temperature control member connected to the output terminal of the first type mechanical switch.
Alternatively, the first indicating member 1501 may be various types of indicating devices, for example, an indicator light; the indicator light is a device which can monitor the working state of the circuit and the electrical equipment by light.
Optionally, the output of the first type of mechanical switch comprises a plurality of output terminals, the plurality of output terminals being connected to different temperature control elements; the first indicator light is connected in parallel with part or all of the branches of the output terminal connected with the temperature control element. When the first mechanical switch is used for conducting the connection between the output terminal and the temperature control element, the first indicator lamp displays a first display state to represent that the temperature control element connected with the output terminal is in a working state; when the output terminal of the first mechanical switch is disconnected with the temperature control element, the first indicating element displays a second display state, and the temperature control element is in a working state when the output terminal is not connected with the temperature control element; the first display state is a lighting state, and the second display state is a lighting-off state.
Optionally, the temperature control element comprises: a first temperature control element and a second temperature control element.
Optionally, the first temperature control element is a first heating element for realizing heating, and the second temperature control element is a second heating element for realizing heating.
In practical application, the control circuit is a schematic diagram of a control circuit of a specific warmer.
As shown in fig. 6, a schematic diagram of a display interface structure of the timer based on the control circuit is provided; the display interface of the timer is provided with a digital display tube, an indicator light, a key "+", "-" and a switch.
The digital display tube can display time from 0 to 24h, specifically, can display a number between 0.0h and 24.0h, for example, display 3.0 h.
The indicator light is used for indicating whether the warmer is in a working state or not.
The "+" button is an incremental button, and may be used to perform a value-added operation on a corresponding parameter, for example, to perform an incremental setting on a timing duration. For another example, the single display duration of the nixie tube is set to be increased. The key "-" is a decrement key, and can be used for carrying out decrement operation on the corresponding parameter. And when the time is displayed, the key is particularly used for pressing a key, so that the time of the digital display tube is reduced. The key "+" or "-" may also be an increment or decrement key that meters for current.
The key switch is specifically used for controlling the heater to be switched on or off when the switch key is pressed.
The control circuit has the following corresponding control and feedback logic:
1. mechanical switch on state
And (3) turning on an indicator light of a timer display interface: the warmer works: 1) closing with "+" or "-" → timing to shut down; 2) pressing a switch to → turning off the warmer;
the indicator light of the timer display interface is not on: the warmer does not work: 1) starting the machine according to "+" or "-" → timing; 2) turn on "→ the heater.
2. A mechanical switch off state;
the indicator light of the timer display interface is not on: the warmer does not work:
alarm is displayed as a digital tube display E1 by "+" or "-" or "power on" → timer.
The mechanical switch is a machine switching device 13 in the control circuit, and may be a first type mechanical switch or a second type mechanical switch, or may be another mechanical switch.
As shown in fig. 7, when the mechanical switching device 13 is a second type mechanical switch 1302, a second indication element 1502 is disposed inside the second type mechanical switching device 1302, wherein the second indication element 1502 is used for indicating a switching state of the second type mechanical switch.
Here, the second indication element 1502 may be specifically configured to indicate an operation state of the temperature control element connected to an output terminal of the second type mechanical switch.
Alternatively, the second indicator element 1502 may be various types of indicator devices, such as an indicator light. The indicator light is a device capable of monitoring the working state of the electrical equipment by using light.
Optionally, the output of the second type of mechanical switch comprises an output terminal, the output terminal being connectable to the temperature control element; and a second indicator light is arranged inside the second type of mechanical switch. When the input end and the output end of the second mechanical switch are connected, the temperature control element is connected in the loop, if the controlled switch is also in conducting connection, the temperature control element is in a working state, and the second indicator light displays a first display state; when the input end and the output end of the second mechanical switch are disconnected, the connection between the controlled element and the temperature control element is disconnected, and the second display lamp displays a second display state; the first display state is a lighting state, and the second display state is a lighting-off state.
Optionally, when the output end of the second type of mechanical switch is connected to different temperature control elements, there may be a plurality of second indication elements arranged inside, and the indication elements may be arranged to correspond to the different temperature control elements one to one.
The temperature control element includes: a third temperature control element and a fourth temperature control element.
Optionally, the third temperature control element is a third heating element for realizing heating, and the fourth temperature control element is a fourth heating element for realizing heating.
As shown in fig. 8, the mechanical switching device 13 connected to the third terminal of the controlled switch includes the first type mechanical switch 1301 and the second type mechanical switch 1302;
the input end of the first-type mechanical switch 1301 and the input end of the second-type mechanical switch 1302 are connected with the signal source, and the output end of the first-type mechanical switch 1301 is connected with the first temperature control element 1001; the output of the second type mechanical switch 1302 is connected to a second temperature control element 1002;
the connecting branch of the first type mechanical switch 1301 and the first temperature control element 1001 is connected in parallel with the connecting branch of the second type mechanical switch 1302 and the second temperature control element 1002.
Optionally, the first type mechanical switch 1301 is: the output end comprises a plurality of output terminals; different ones of the output terminals are connected to different ones of the temperature control elements, or the number of the temperature control elements connected to different ones of the output terminals is different.
Optionally, the second type mechanical switch 1302 is: the output includes an output terminal.
Here, the first type mechanical switch 1301 may be a rotary switch, and the second type mechanical switch 1302 may be a toggle switch or a switch without a toggle switch.
Here, the first type mechanical switch and/or the second type mechanical switch may be various types of mechanical switches having only an "on" or "off" function, for example, a tilt switch.
In this embodiment, as the connecting branch of the first type mechanical switch and the temperature control element is connected in parallel with the connecting branch of the second type mechanical switch and the temperature control element, if the mechanical switch of one branch is connected with the temperature control element, a control signal can be generated according to an electrical signal by detecting the electrical signal on the branch to control the controlled switch and the temperature control element to be switched on and off, so as to implement the timed start-up and shutdown of the timer-based timing device.
As shown in fig. 8, the detecting device 1101 is configured to detect electrical signals of at least two of the temperature control elements;
specifically, the detection device 1101 includes at least two detection terminals.
Optionally, the detection device 1101 includes a first detection terminal and a second detection terminal, the first detection terminal is connected to the first temperature control element 1001 connected to the first type mechanical switch 1301 and is configured to detect a first electrical signal input by the temperature control element connected to the first type mechanical switch 1301; the second detection end is connected to the second temperature control element 1002 connected to the second type mechanical switch 1302, and is configured to detect a second electrical signal input by the temperature control element connected to the second type mechanical switch 1302.
Optionally, the first detection terminal may also detect an electrical signal at the output terminal of the controlled switch 12.
The control device 1102 is configured to generate the control signals for controlling the electrical signal inputs of the temperature control elements, respectively, according to the electrical signals detected respectively.
Optionally, the control device 1102 generates the first control signal for controlling the first electrical signal input of the first temperature control element according to the first electrical signal; the control device 1102 generates a second control signal for controlling a second electrical signal input of the second temperature control element according to the second electrical signal.
In this embodiment, the detecting device 1101 may have a plurality of detecting terminals, and the detecting device may be used to detect the electrical signal of the temperature control element in each branch, or the electrical signal of each indicating element branch, or the electrical signal of the output terminal of the controlled switch. Therefore, the detection of the electric signals can be more comprehensively and effectively realized, when one of the parallel mechanical switching devices is connected with the temperature control element, the timer can generate a control signal according to the electric signal of the connecting branch to control the controlled switch to be switched on and off at regular time, so that the starting or the shutdown of timing equipment (such as a heater) is realized.
As shown in fig. 8, the control circuit further includes: a third indicator element 16;
the third indicating element 16 is connected to the third terminal of the controlled switch, and is configured to indicate a switching state of the controlled switch.
Optionally, the first detection terminal of the detection device 1101 may be further configured to detect an electrical signal of the third indicator element.
Alternatively, the third indicating element 1502 may be various types of indicating devices, such as an indicator light. The indicator light is a device which can monitor the working state of the circuit or the electrical equipment by using light.
In one embodiment, the third indicator light is connected to the third terminal of the controlled switch. When the first type mechanical switch 1301 and/or the second type mechanical switch 1302 are turned on, the second type mechanical switch 1302 is turned off. When the second end and the third end of the controlled switch are connected, the temperature control element is connected in the control circuit in a conducting mode and is in a working state, and the third indicator lamp displays the first display state.
When the third indicator light is connected with the third end of the controlled switch. The first type mechanical switch 1301 and/or the second type mechanical switch 1302 are turned on, when the second terminal and the third terminal of the controlled switch are turned off, the temperature control element is not present in the control circuit and is in a conductive connection, and when the temperature control element is in a non-working state, the third indicator light displays the second display state.
When the third indicator light is connected with the third end of the controlled switch. When the first mechanical switch 1301 and/or the second mechanical switch 1302 are turned off, the third indicator light displays a second display state.
The first display state is a state that the lamp is on, and the second display state is a state that the lamp is off.
In this embodiment, the third indicating element is connected to the third terminal of the controlled switch, and is connected to the connecting branch of the temperature control element in parallel with other mechanical switches. In this way, the operating state of the temperature control elements in the branches connected in parallel therewith can be monitored; when the temperature control element of one branch is in an operating state, the third indicating elements all display a first display state such as lighting; the third indicator element only indicates a second display state, for example, a light-off state, when all the temperature control elements of the branches connected in parallel therewith are in the inoperative state. Therefore, an indicating element does not need to be arranged for each branch of the mechanical switch connected with the temperature control element, so that the use of hardware equipment is reduced, and meanwhile, the complexity of a control circuit is reduced.
And when the detection end of the detection device detects the electric signal input by the third indicating element, the operation of the detection device or the detection circuit for detecting the electric signal can be further simplified, a control signal can be generated based on the electric signal input by the third indicating element, and the timing start-up or shutdown of the timing device can be realized.
As shown in fig. 9, the control circuit provided in the present embodiment includes:
a plug 16 connected to a 220V AC power supply; the plug includes three ends, is respectively: a fire wire end L, a zero wire end N and a grounding end G; the fire wire end L is connected with the input end of the dumping switch 17; the output end of the dumping switch 17 is connected with the input end of the rotary switch 1301 and the input end of the timer 11; wherein the timer 11 comprises a detection device 1101 and a control device 1102 as shown in fig. 8, the detection device 1101 comprises a detection terminal; the timer 11 further comprises an input end, an output end, a control end and a detection end of the detection device; the output end of the timer 11 is connected with the zero line end N of the plug 16; in the loop of the timer and the plug 16, a temperature limiter 18 is also arranged; the detection end of the timer 11 is connected with the input end of an indicator light 15; the output end of the indicator light 15 is connected with a resistor R1; the control end of the timer 11 is connected with the first end of the controlled switch 12; a temperature controller 19 is also arranged between the resistor R1 and the loop of the controlled switch 12; the output end of the rotary switch 1301 comprises a first output terminal, a second output terminal, a third output terminal and a fourth output terminal; here, the first output terminal, the second output terminal, the third output terminal, and the fourth output terminal are denoted by 1, 2, 3, and L, respectively.
Wherein the first heat generator 1401 is connected in a conductive loop when the input terminal of the rotary switch 1301 is connected to the first output terminal 1; when the input end of the rotary switch is connected to the second output terminal 2, the second heating element 1402 is connected in a conductive loop; when the input terminal of the rotary switch is connected to the third output terminal 3, the first heating element 1401 and the second heating element 1402 are simultaneously connected in a conductive loop; when the input end of the rotary switch is connected with the fourth output terminal L, the rotary switch is connected with the zero line end of the signal source.
Wherein the first heating element and the second heating element are one form of the temperature control element in the first to seventh embodiments.
In this embodiment, when the input terminal of the rotary switch 1301 is connected to the first output terminal 1, the second output terminal 2, and the third output terminal 3, respectively, the rotary switch 1301 of the control circuit is turned on; if the controlled switch 12 is in the on state at this time, the indicator light 15 displays the lighting state; the timer can realize the timing turn-off of the controlled switch according to the detected electric signal of the running state of the first heating element and/or the second heating element, thereby realizing the timing turn-off of the connection between the signal source and the first heating element and/or the second heating element and realizing the timing turn-off; if the controlled switch 12 is in the off state at this time, the indicator light 15 displays the light-off state at this time; the timer 11 can realize the timing conduction of the controlled switch according to the detected electric signal of the operating state of the first heating element and/or the second heating element, thereby realizing the connection of the timing conduction signal source and the first heating element and/or the second heating element and realizing the timing 'startup'.
When the input end of the rotary switch 1301 is connected with the fourth output terminal L, the indicator light 15 displays a light-off state, at this time, the rotary switch 1301 of the control circuit is in an off state, and the control circuit cannot realize timing "on" or "off" through the timer. In particular, the timer may be set to an alarm state, for example, a digital display tube of the timer may be set to "E1" state.
As shown in fig. 10, the control circuit provided in the present embodiment includes:
a plug 16 connected to a 220V AC power supply; the plug includes three ends, is respectively: a fire wire end L, a zero wire end N and a grounding end G; the fire wire end L is connected with the input end of the dumping switch 17; the output end of the dumping switch 17 is connected with the input end of the temperature controller 19 and the input end of the timer 11; the timer 11 includes a detection device 1101 and a control device 1102 as shown in fig. 8, where the detection device 1101 includes at least two detection terminals, which are a first detection terminal and a second detection terminal respectively; the timer 11 further comprises an input terminal, an output terminal, a control terminal, and the first detection terminal and the second detection terminal of the detection device; the output end of the timer 11 is connected with the zero line end N of the plug 16; in the loop of the timer and the plug 16, a temperature limiter 18 is also arranged; the first detection end of the timer 11 is connected with the input end of the heating element I of the heating element 14; the second detection end of the timer 11 is connected with the input end of the heating element II of the heating element 14; the heating element I and the second heating element II are connected in parallel; the control end of the timer 11 is connected with the first end of the controlled switch 12; the output end of the temperature controller 19 is connected with the input end of the rocker switch; the output end of the rocker switch is connected with the input end of the heating body 14.
Wherein, three groups of inserting pieces are arranged on the rocker switch 1302; the first set of insert sheets comprises two insert sheets, S1 and S2 respectively; the second set of insert sheets comprises two insert sheets, S3 and S4 respectively; the third group of insert sheets comprises two insert sheets, namely S5 and S6; wherein a first indicator light is arranged in the S5; the first indicator light is used for indicating the running state of the heating body I; and a second indicator light is arranged in the S6 and used for indicating the operation state of the heating element II.
When the rocker switch 1302 is turned from S1 to S3, the heating element I is connected to the loop; when the rocker switch is turned from S2 to S4, the heating element II is connected to the loop; when the rocker switch is turned from S1 to S3 and from S2 to S4, the heating element I and the heating element II are simultaneously connected in a circuit.
Wherein the heating element i and the heating element ii are one form of the temperature control element in the above embodiments one to seven.
In the present embodiment, when the rocker switch is turned on from S1 to S3 and/or from S2 to S4, the rocker switch 1302 of the control circuit is turned on; if the controlled switch 12 is in a conducting state and the first indicator light is in a lighting state at this time, the timer can realize the timing turn-off of the controlled switch according to the detected electric signal of the running state of the heating element I, so that the connection between a signal source and the heating element I is disconnected at a timing, and the timing 'turn-off' is realized; if the controlled switch 12 is in a conducting state and the second indicator light is in a lighting state at this time, the timer can realize the timing turn-off of the controlled switch according to the detected electric signal of the running state of the heating element II, so that the connection between the signal source and the heating element II is disconnected at a timing, and the timing 'turn-off' is realized; if the controlled switch 12 is in a conducting state at the moment, and the first indicator light and the second indicator light are in a lighting state, the timer can realize the timing turn-off of the controlled switch according to the detected electric signals of the running states of the heating element I and the heating element II, so that the connection of a signal source and the heating element I and the heating element II is disconnected at a timing, and the timing 'shutdown' is realized.
When the rocker switch is turned on from S1 to S3 and/or from S2 to S4, the rocker switch 1302 of the control circuit is in an on state, and if the controlled switch 12 is in an off state at the moment, the first indicator light and the second indicator light are in an off state; the timer 11 can realize the timing conduction of the controlled switch according to the detected electric signal of the running state of the heating element I and/or the heating element II, thereby realizing the connection of the timing conduction signal source and the heating element I and/or the heating element II and realizing the timing 'startup'
In this embodiment, the timer includes two first detection terminals and a second detection terminal, and can detect the operation states of different heating elements respectively; the indicating element comprises a first indicating lamp and a second indicating lamp which can respectively display and reflect the operating states of different heating bodies. Therefore, the running state of each specific temperature control element in the control circuit can be determined, and the timing device can be more effectively controlled to be started or shut down through the electric signal of the control circuit.
As shown in fig. 11, the control circuit provided in the present embodiment includes:
a plug 16 connected to a 220V AC power supply; the plug includes three ends, is respectively: a fire wire end L, a zero wire end N and a grounding end G; the fire wire end L is connected with the input end of the dumping switch 17; the output end of the dumping switch 17 is connected with the input end of the rotary switch 1301, the input end of the timer 11 and the input end of the third mechanical switch 1302; the timer 11 includes a detection device 1101 and a control device 1102 as shown in fig. 8, where the detection device 1101 includes a first detection terminal and a third detection terminal; the timer 11 further includes an input terminal, an output terminal, a control terminal, and the first detection terminal and the third detection terminal of the detection device; the output end of the timer 11 is connected with the zero line end N of the plug 16; in the loop of the timer and the plug 16, a temperature limiter 18 is also arranged; a first detection end of the timer 11 is connected to an input end of the third heating element 1403; the output end of the third heating element 1403 is connected with an electron R2; the third detection end of the timer 11 is connected with the input end of the indicator light 15; the output end of the indicator light 15 is connected with a resistor R1; the control end of the timer 11 is connected with the first end of the controlled switch 12; a temperature controller 19 is also arranged between the resistor R1 and the loop of the controlled switch 12; the output of the rotary switch 1301 comprises a first output terminal, a second output terminal, a third output terminal and a fourth output terminal, which are denoted by 1, 2, 3, L, respectively; the rotary switch 1301 is connected to the first heating element 1401 and the second heating element 1402, and is connected in parallel to the third mechanical switch 1303 and the third heating element 1403.
In this embodiment, the on and off of the rotary switch is implemented in a manner similar to that of the rotary switch in the eighth embodiment; the third mechanical switch can be a rocker switch, a tilt switch or other mechanical switches which can be turned on or off; when the third mechanical switch is the rocker switch, the third mechanical switch is similar to the rocker switch in the ninth embodiment in the implementation manner of turning on and off.
In this embodiment, since the connecting branch of the rotary switch and the temperature control element is connected in parallel with the connecting branch of the third mechanical switch and the temperature control element, the conductive connection of the mechanical switch of the control circuit can be realized as long as one of the rotary switch and the third mechanical switch is conductively connected. Then, a control signal can be generated according to the electrical signal detected by the detection device or the detection circuit, and the controlled switch 12 is controlled to be turned on and off, so that all or part of the temperature control element and the signal source are turned on and off, and the timing device is turned on or turned off at regular time.
Here, it should be noted that: the following description of the control method items is similar to the description of the control circuit, and is not repeated as the description of the beneficial effects of the control circuit. For technical details not disclosed in the embodiments of the control method of the present invention, please refer to the description of the embodiments of the control circuit of the present invention.
The embodiment of the invention also provides a control method, which comprises the following steps:
generating a control signal according to the electric signal detected by the temperature control element based on the timer;
and controlling the connection between the signal source and the temperature control element to be switched on or off based on the controlled switch according to the control signal.
Optionally, the method further comprises:
a mechanical switching device connected to a third terminal of the controlled start terminal, and turned on or off based on an external force applied to the mechanical switching device;
and the signal source is connected or disconnected with the temperature control element based on a mechanical device.
Optionally, the mechanical switching device is the first type of mechanical switch; the first type of mechanical switch is: a first type of mechanical switching device having an output terminal including a plurality of output terminals; different output terminals are connected to different temperature control elements, or the number of the temperature control elements connected to different output terminals is different;
the turning on or off based on an external force acting on the mechanical switching device includes:
based on the external force, the input terminals of the first type of mechanical switching devices are connected to different ones of the output terminals.
Optionally, the mechanical switching device is: a second type of mechanical switching device having an output terminal comprising an output terminal; different ones of said temperature control elements are connected to different ones of a second type of mechanical switching devices;
the turning on or off based on an external force acting on the mechanical switching device includes:
and the second type mechanical switch is used for switching on or off the signal source and the different temperature control elements based on external force acting on different second type mechanical switch devices.
Optionally, the method further comprises:
and the first indicating element is connected to the output end of the first mechanical switch and indicates the switch state of the first mechanical switch.
Optionally, the method further comprises:
and the second indicating element is connected to the inside of the second type of mechanical switch and indicates the switch state of the second type of mechanical switch.
Optionally, a first type of mechanical switch in the mechanical switching device is used for switching on or off the connection between the signal source and the first temperature control element;
connecting or disconnecting the signal source with a second temperature control element by using a second type of mechanical switch in the mechanical switch device;
the first type of mechanical switch and the connecting branch of the first temperature control element are connected in parallel with the connecting branch of the second mechanical switch and the second temperature control element.
In the above solution, the generating the control signal by the timer according to the electric signal of the temperature control element includes: the timer respectively generates the control signals for controlling the electric signals input by the temperature control elements according to the electric signals of at least two temperature control elements.
Optionally, the method further comprises:
and the third indicating element is connected to the third end of the controlled switch and indicates the switching state of the controlled switch.
The embodiment of the present invention further provides a temperature control device, where the temperature control device includes the timer 11 and the controlled switch 12 according to any embodiment of the present application. The timer 11 can be connected with a temperature control element, detects an electric signal and generates a control signal according to the detected electric signal; the controlled switch 12 can receive the control signal, and according to the control signal, the connection is turned on or off, so that the temperature control device is turned on or off at regular time.
In the embodiments provided in the present invention, it should be understood that the disclosed circuit may be implemented in other ways. The above described circuit embodiments are merely illustrative, for example, the division of the unit is only a logic function division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another circuit, or some features may be omitted, or not implemented.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (12)
1. A control circuit, the circuit comprising: a timer and a controlled switch;
the timer includes:
a detection device, connectable to the temperature control element, for detecting the electrical signal;
the control device is connected with the detection device and used for generating a control signal according to the electric signal;
wherein said generating said control signal from said electrical signal comprises:
determining the time length of timing startup and shutdown according to the time length of the voltage in the electric signal in a voltage change period at high and low levels;
the controlled switch includes:
the first end is connected with the control device and used for receiving the control signal;
the second end is connected with a signal source of the temperature control element and is used for receiving an electric signal input to the temperature control element;
the third end is connected with the temperature control element and used for outputting the electric signal to the temperature control element;
and the switching device is respectively connected with the first end, the second end and the third end and is used for switching on the second end and the third end or switching off the second end and the third end according to the control signal.
2. The circuit of claim 1,
the circuit further comprises: a mechanical switching device connected to a third terminal of the controlled switch;
the input end of the mechanical switching device is connected with the signal source, and the output end of the mechanical switching device is connected with the temperature control element and used for switching on or off the connection between the signal source and the temperature control element.
3. The circuit of claim 2,
the mechanical switching device is: a first type of mechanical switching device having an output terminal including a plurality of output terminals; different output terminals are connected to different temperature control elements, or the number of the temperature control elements connected to different output terminals is different;
the mechanical switching device is: a second type of mechanical switching device having an output terminal; different ones of said temperature control elements are connected to different ones of said second type of mechanical switching devices.
4. The circuit of claim 3,
the output end of the first type of mechanical switch is provided with a first indicating element, wherein the first indicating element is used for indicating the switch state of the first type of mechanical switch.
5. The circuit of claim 3,
and a second indicating element is arranged inside the second type of mechanical switch device, wherein the second indicating element is used for indicating the switch state of the second type of mechanical switch.
6. The circuit of claim 3,
the mechanical switching device connected to the third terminal of the controlled switch includes: the first type of mechanical switch and the second type of mechanical switch;
the input end of the first type of mechanical switch and the input end of the second type of mechanical switch are connected with the signal source, and the output end of the first type of mechanical switch is connected with the first temperature control element; the output end of the second type of mechanical switch is connected with a second temperature control element;
and the connecting branch of the first type mechanical switch and the first temperature control element is connected in parallel with the connecting branch of the second type mechanical switch and the second temperature control element.
7. The circuit of claim 1,
the detection device is used for detecting the electric signals of at least two temperature control elements;
the control device is used for respectively generating the control signals for controlling the electric signal input of the temperature control element according to the respectively detected electric signals.
8. The circuit of claim 1, further comprising:
and the third indicating element is connected with the third end and is used for indicating the switching state of the controlled switch.
9. A control method applied to a control circuit according to any one of claims 1 to 8, the method comprising:
generating a control signal according to the electric signal detected by the temperature control element based on the timer;
and controlling the connection between the signal source and the temperature control element to be switched on or off based on the controlled switch according to the control signal.
10. The method of claim 9, further comprising:
a mechanical switching device connected to a third terminal of the controlled switch, and turned on or off based on an external force applied to the mechanical switching device;
and switching on or off the connection between the signal source and the temperature control element based on the mechanical switching device.
11. The method of claim 10,
the mechanical switch device is the first type of mechanical switch; the first type of mechanical switch is: a first type of mechanical switching device having an output terminal including a plurality of output terminals; different output terminals are connected to different temperature control elements, or the number of the temperature control elements connected to different output terminals is different;
the turning on or off based on an external force acting on the mechanical switching device includes:
based on the external force, the input terminals of the first type of mechanical switching devices are connected to different ones of the output terminals.
12. A temperature control device comprising the control circuit of any one of claims 1 to 8.
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| CN201811011036.4A CN110873359B (en) | 2018-08-31 | 2018-08-31 | Control circuit, method and temperature control equipment |
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| CN201811011036.4A CN110873359B (en) | 2018-08-31 | 2018-08-31 | Control circuit, method and temperature control equipment |
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