CN108375106B - Alarm circuit and air heating type warmer - Google Patents
Alarm circuit and air heating type warmer Download PDFInfo
- Publication number
- CN108375106B CN108375106B CN201810332148.3A CN201810332148A CN108375106B CN 108375106 B CN108375106 B CN 108375106B CN 201810332148 A CN201810332148 A CN 201810332148A CN 108375106 B CN108375106 B CN 108375106B
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- circuit
- load
- alarm
- started
- module
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 49
- 230000005856 abnormality Effects 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000007664 blowing Methods 0.000 claims description 17
- 239000003990 capacitor Substances 0.000 claims description 13
- 230000002159 abnormal effect Effects 0.000 claims description 12
- 238000010792 warming Methods 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 230000007935 neutral effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000005286 illumination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
- F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
-
- 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
- F24D13/00—Electric heating systems
- F24D13/04—Electric heating systems using electric heating of heat-transfer fluid in separate units of the system
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Heating Systems (AREA)
Abstract
The invention provides an alarm circuit and an air heating type warmer, wherein the alarm circuit is connected with a first load and a second load, the first load and the second load are both connected to a zero line through the alarm circuit, and the alarm circuit comprises: the device comprises an abnormality detection circuit and an alarm module, wherein the abnormality detection circuit is used for detecting whether the first load is started when the second load is started, and triggering the alarm module to work when the second load is started and the first load is not started; and the alarm module is used for sending out an alarm signal. The alarm circuit and the air heating type warmer provided by the invention can trigger an alarm immediately under the condition that a user or an installer misconnects a control line in an associated circuit, so that the user or the installer can find out in time and take measures to rewire, thereby enabling the circuit to return to a correct logic state, avoiding causing damage to devices and the circuit, and ensuring safe and reliable operation of the circuit.
Description
Technical Field
The invention relates to the technical field of heating, in particular to an alarm circuit and an air heating type warmer.
Background
The air heating type warmer gradually replaces the traditional bathroom warmer to become the main heating equipment of a bathroom, but a control switch of the air heating type warmer is generally provided with heating, ventilation, illumination, blowing and the like, and a wiring of a host is also generally provided with a plurality of power supply connecting wires for heating, ventilation, illumination, blowing and the like, and the connecting wires are all pre-buried in a user wall, most of the connecting wires are not separated from colors, and users are very easy to connect by mistake. But the heat of the heating module of the air heating type warmer is mainly taken away by the air quantity generated by the air blowing motor, so that the temperature in the warmer box body is controlled in a certain range, and the safety and the reliability of the warmer are ensured. Once the control line of the blowing motor or the heating module is in wrong connection or is connected with the control line of the heating module, the heating module can be heated and the blowing motor cannot be powered and cannot operate, heat generated by the heating module cannot be accumulated outside the machine and is rapidly increased in temperature, so that the reliability and stability of the whole product are affected, and serious accidents are even caused.
In a traditional air heating type warmer switch control circuit, the control of a heating module and the control of a blowing motor need to be associated, namely: when the heating module is started, the blowing motor must be started, and when the blowing motor is started, the heating module can be started or not, the starting sequence of the two loads and the switch have necessary logic relations, otherwise, the circuit is damaged or even dangerous is caused.
As in the conventional air-warming type warmer shown in fig. 1, the load 1 (blower motor) and the load 2 (warming module) are independently operated, and if no link between the two loads is independently operated, the conventional air-warming type warmer shown in fig. 1 is free from problems. But load 1 (blowing motor) and load 2 (heating module) are the associative operation, and the correct use of during operation is to start load 1 (blowing motor) earlier, then start load 2 (heating module), just so can guarantee that the temperature control in the room heater box is in certain scope to ensure the security and the reliability of room heater. Otherwise, the heat generated by the heating module cannot be accumulated outside the machine and can be accumulated in the machine, so that the temperature in the machine can be increased sharply, the reliability and stability of the whole product are affected, and accidents are seriously caused. Most of the products on the market use the control method shown in fig. 1, such problems and drawbacks are: 1. the installer can not find that the wrong line is connected, so that after-sales increase is caused; 2. the user only opens the heating module and does not open the blowing motor, so that the machine cannot be normally used and damaged.
Disclosure of Invention
The invention provides an alarm circuit and an air heating type warmer, which are used for overcoming the problems or at least partially solving the problems.
According to one aspect of the present invention, there is provided an alarm circuit connected to a first load and a second load, both of which are connected to a neutral line through the alarm circuit, the alarm circuit comprising: an abnormality detection circuit, an alarm module, wherein,
the abnormality detection circuit is used for detecting whether the first load is started or not when the second load is started, and triggering the alarm module to work when the second load is started and the first load is not started;
and the alarm module is used for sending out an alarm signal.
Optionally, the abnormality detection circuit includes: an abnormal conduction circuit and a power supply trigger circuit, wherein,
the abnormal conduction circuit is used for conducting when the second load is started and the first load is not started, and triggering the power trigger circuit to work;
the power trigger circuit is used for providing a working power supply for the alarm module when the abnormal conduction circuit is conducted so as to trigger the alarm module to work.
Optionally, the abnormal conduction circuit includes: the power supply trigger circuit comprises a first half-wave rectifying diode, a second half-wave rectifying diode and a third half-wave rectifying diode, wherein the positive electrode of the first half-wave rectifying diode is connected to a first load, the negative electrode of the first half-wave rectifying diode is connected to the power supply trigger circuit, the positive electrode of the second half-wave rectifying diode is connected to a second load, the negative electrode of the second half-wave rectifying diode is connected to the positive electrode of the third half-wave rectifying diode, and the negative electrode of the third half-wave rectifying diode is connected to the power supply trigger circuit.
Optionally, the power supply trigger circuit includes: a voltage stabilizing diode, a capacitor, a first voltage dividing resistor and a second voltage dividing resistor, wherein,
the positive pole of electric capacity with the negative pole of third half-wave rectifier diode is connected, the negative pole of electric capacity with the one end of second divider resistance is connected, the other end of second divider resistance with the zero line is connected, zener diode with the electric capacity is parallelly connected, zener diode's negative pole with the negative pole of third half-wave rectifier diode with the positive pole of electric capacity is connected, zener diode's positive pole with the negative pole of first half-wave rectifier diode, the negative pole of electric capacity and one end of first divider resistance is connected, the other end of first divider resistance with the zero line is connected.
Optionally, the alarm module includes: and the buzzer is connected with the capacitor in parallel.
Optionally, the first load is a blower motor, and the second load is a heating module.
According to another aspect of the invention, there is also provided an air-heating warmer, comprising a blower motor as a first load, a heating module as a second load, and any one of the alarm circuits, wherein the alarm circuit is connected with the blower motor and the heating module, and the heating module and the blower motor are both connected to a zero line through the alarm circuit.
The alarm circuit provided by the invention is specially used for detecting whether two loads needing to be controlled in an associated way are linked to be started when one load is started, and is especially suitable for detecting whether the blowing motor in the air heating type warmer and the heating module are linked to be started when the heating module is started. Based on the alarm circuit and the air-heating type warmer provided by the invention, the alarm can be triggered immediately under the condition that a user or an installer misconnects a control line in an associated circuit, so that the user or the installer can find out in time and take measures to rewire, thereby enabling the circuit to return to a correct logic state, avoiding causing damage to devices and the circuit, and ensuring safe and reliable operation of the circuit.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present invention more readily apparent.
The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:
FIG. 1 is a functional block diagram of a conventional air-warming warmer;
FIG. 2 is a functional block diagram of an alarm circuit according to an embodiment of the invention;
FIG. 3 is a functional block diagram of an alarm circuit according to a preferred embodiment of the present invention;
fig. 4 is a circuit diagram of an alarm circuit according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
The embodiment of the invention provides an alarm circuit which is specially used for detecting whether two loads needing to be controlled in an associated way are linked to be started when one load is started or not, and is particularly suitable for detecting whether a blowing motor in an air heating type warmer and a heating module are linked to be started when the heating module starts to work or not. Fig. 2 is a functional block diagram of an alarm circuit according to an embodiment of the present invention, and as shown in fig. 2, an alarm circuit 10 provided in an embodiment of the present invention is connected to a first load 20 and a second load 30, and the first load 20 and the second load 30 are connected to a zero line through the alarm circuit 10, and the alarm circuit 10 may include: the device comprises an abnormality detection circuit 11 and an alarm module 12, wherein the abnormality detection circuit 11 is used for detecting whether the first load 20 is started when the second load 30 is started, and triggering the alarm module 12 to work when the second load 30 is started and the first load 20 is not started; an alarm module 12 for sending out an alarm signal.
The alarm circuit provided by the embodiment can trigger an alarm immediately under the condition that a user or an installer misconnects a control line in an associated circuit, so that the user or the installer can find out in time and take measures to rewire, the circuit returns to a correct logic state, the damage to devices and the circuit is avoided, and the safe and reliable work of the circuit is ensured.
Fig. 3 is a functional block diagram of an alarm circuit according to a preferred embodiment of the present invention. In order to detect whether the first load 20 is turned on when the second load 30 is turned on, the abnormality detection circuit 11 may adopt a functional structure as shown in fig. 3, and may include an abnormal conduction circuit 13 and a power trigger circuit 14, where the abnormal conduction circuit 13 is used for conducting when the second load 30 is turned on and the first load 20 is not turned on, and triggering the power trigger circuit 14 to work; the power trigger circuit 14 is used for providing working power for the alarm module 12 when the abnormal conduction circuit is conducted 13 so as to trigger the alarm module 12 to work.
The present preferred embodiment provides a simple and easy-to-implement functional structure of the abnormality detection circuit 11, where the abnormality conducting circuit 13 is configured to conduct to enable the power triggering circuit 14 to start operating only when the second load 30 is turned on and the first load 20 is not turned on, and the power triggering circuit 14 will provide operating power for the alarm module 12 to enable the alarm module 12 to operate when operating, thereby realizing an alarm when the second load 30 is turned on and the first load 20 is not turned on. It should be noted that the functional structure of the abnormality detection circuit 11 provided in the present preferred embodiment is only a typical simple and easy-to-implement functional structure, and any other functional structure that can detect that the second load 30 is turned on but the first load 20 is not turned on and trigger the alarm module 12 to operate can be used herein, and the present invention is not limited thereto.
Fig. 4 is a circuit diagram of an alarm circuit according to an embodiment of the present invention. With respect to the functional structure of the alarm circuit provided in the foregoing embodiment, this embodiment provides a circuit structure capable of implementing the foregoing functional structure, as shown in fig. 4:
the abnormal conduction circuit 13 may include: the first half-wave rectifier diode D1, the second half-wave rectifier diode D2 and the third half-wave rectifier diode D3, wherein the positive electrode of the first half-wave rectifier diode D1 is connected to the first load 20, the negative electrode of the first half-wave rectifier diode D1 is connected to the power trigger circuit 14, the positive electrode of the second half-wave rectifier diode D2 is connected to the second load 30, the negative electrode of the second half-wave rectifier diode D2 is connected to the positive electrode of the third half-wave rectifier diode D3, and the negative electrode of the third half-wave rectifier diode D3 is connected to the power trigger circuit 14.
The power trigger circuit 14 may include: the voltage stabilizing diode ZD1, the capacitor C1, the first divider resistor R1 and the second divider resistor R2, wherein the positive electrode of the capacitor C1 is connected with the negative electrode of the third half-wave rectifier diode D3, the negative electrode of the capacitor C1 is connected with one end of the second divider resistor R2, the other end of the second divider resistor is connected with a zero line, the voltage stabilizing diode ZD1 is connected with the capacitor C1 in parallel, the negative electrode of the voltage stabilizing diode ZD1 is connected with the negative electrode of the third half-wave rectifier diode D3 and the positive electrode of the capacitor C1, the positive electrode of the voltage stabilizing diode ZD1 is connected with the negative electrode of the first half-wave rectifier diode D1, the negative electrode of the capacitor C1 and one end of the first divider resistor R1, and the other end of the first divider resistor R1 is connected with the zero line.
The functional structure of the alarm circuit provided by the embodiment can be realized based on the circuit structure provided by the embodiment, and the function that when a fault line is connected or a load is started out of sequence, an alarm is given, otherwise, the alarm is not given is realized. Taking the circuit structure as an example of accessing the city power, the working principle of the circuit structure provided by the embodiment is as follows: when only the second load 30 is started, the commercial power 220VAC is rectified by the second half-wave rectifying diode D2 and the third half-wave rectifying diode D3 and then becomes a direct-current voltage with a preset value, meanwhile, the capacitor C1 is charged rapidly, the capacitor C1 provides a stable power supply for the alarm module 12, the voltage stabilizing diode ZD1 stabilizes the power supply of the alarm module 12 to a preset working voltage, and then the alarm module 12 is realized after the voltage is divided by the first voltage dividing resistor R1 and the second voltage dividing resistor R2. The first half-wave rectifier diode D1 is used to turn off the alarm module 12 when the first load 20 is turned on, and the first load 20 and the second load 30 operate normally. The purpose of using the second half-wave rectifier diode D2 and the third half-wave rectifier diode D3 is to prevent other devices from being damaged after one of them breaks down in the reverse direction. The circuit only plays a role in buzzing and alarming when the error connection wire or the load opening sequence is wrong, and does not alarm under the normal condition.
It should be noted that the circuit structure provided in the preferred embodiment is only a typical circuit structure, and many other circuit structures capable of achieving similar functions are not described one by one, and all the circuit structures provided in the preferred embodiment are alternatives or modifications.
In various embodiments of the present invention, the alarm module 12 may use various ways, such as acousto-optic and the like, or a combination thereof, to alarm. Preferably, as shown in fig. 4, the alarm module 12 may comprise a buzzer connected in parallel with the capacitor C1. At this time, the alarm module 12 alarms by a beep.
Based on the above description, the alarm circuit provided by the embodiment of the invention can be actually used for detecting whether two loads needing to be controlled in an associated manner work normally or not, and is not limited to detecting whether the blowing motor and the heating module in the air heating type warmer work normally or not. However, it is very suitable for detecting whether the blower motor and the heating module in the air heating type warmer work normally in a linkage way.
To this end, the embodiment of the present invention further provides an air-heating warmer, which includes a blower motor as the first load 20 and a heating module as the second load 30, and the alarm circuit 10 described in any of the foregoing embodiments, where the alarm circuit 10 is connected to the blower motor and the heating module, and the heating module and the blower motor are both connected to the zero line through the alarm circuit 10.
The warm warmer can immediately trigger an alarm under the condition that a user or an installer misconnects a control line in an associated circuit, so that the user or the installer can timely find out and take measures to rewire, the circuit returns to a correct logic state, the damage to devices and the circuit is avoided, and the safe and reliable work of the circuit is ensured.
In a specific implementation process, the heating module can be based on a PTC thermistor. Of course, there are other implementations of the heating module, and the invention is not limited in particular.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all technical features thereof can be replaced by others within the spirit and principle of the present invention; such modifications and substitutions do not depart from the scope of the invention.
Claims (5)
1. An alarm circuit connected to a first load and a second load, both of which are connected to a neutral line through the alarm circuit, the alarm circuit comprising: an abnormality detection circuit, an alarm module, wherein,
the abnormality detection circuit is used for detecting whether the first load is started or not when the second load is started, and triggering the alarm module to work when the second load is started and the first load is not started;
the alarm module is used for sending out an alarm signal;
the abnormality detection circuit includes: an abnormal conduction circuit and a power supply trigger circuit, wherein,
the abnormal conduction circuit is used for conducting when the second load is started and the first load is not started, and triggering the power trigger circuit to work;
the power supply trigger circuit is used for providing a working power supply for the alarm module when the abnormal conduction circuit is conducted so as to trigger the alarm module to work;
the abnormal conduction circuit includes: the power supply trigger circuit comprises a first half-wave rectifying diode, a second half-wave rectifying diode and a third half-wave rectifying diode, wherein the positive electrode of the first half-wave rectifying diode is connected to a first load, the negative electrode of the first half-wave rectifying diode is connected to the power supply trigger circuit, the positive electrode of the second half-wave rectifying diode is connected to a second load, the negative electrode of the second half-wave rectifying diode is connected to the positive electrode of the third half-wave rectifying diode, and the negative electrode of the third half-wave rectifying diode is connected to the power supply trigger circuit.
2. The alarm circuit of claim 1, wherein the power trigger circuit comprises: a voltage stabilizing diode, a capacitor, a first voltage dividing resistor and a second voltage dividing resistor, wherein,
the positive pole of electric capacity with the negative pole of third half-wave rectifier diode is connected, the negative pole of electric capacity with the one end of second divider resistance is connected, the other end of second divider resistance with the zero line is connected, zener diode with the electric capacity is parallelly connected, zener diode's negative pole with the negative pole of third half-wave rectifier diode with the positive pole of electric capacity is connected, zener diode's positive pole with the negative pole of first half-wave rectifier diode, the negative pole of electric capacity and one end of first divider resistance is connected, the other end of first divider resistance with the zero line is connected.
3. The alarm circuit of claim 2, wherein the alarm module comprises: and the buzzer is connected with the capacitor in parallel.
4. An alarm circuit according to any one of claims 1 to 3, wherein the first load is a blower motor and the second load is a heating module.
5. An air-warming warmer comprising a blowing motor as a first load, a warming module as a second load, and the alarm circuit of any one of claims 1-4, wherein the alarm circuit is connected with the blowing motor and the warming module, and the warming module and the blowing motor are connected to a zero line through the alarm circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810332148.3A CN108375106B (en) | 2018-04-13 | 2018-04-13 | Alarm circuit and air heating type warmer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810332148.3A CN108375106B (en) | 2018-04-13 | 2018-04-13 | Alarm circuit and air heating type warmer |
Publications (2)
| Publication Number | Publication Date |
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| CN108375106A CN108375106A (en) | 2018-08-07 |
| CN108375106B true CN108375106B (en) | 2024-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810332148.3A Active CN108375106B (en) | 2018-04-13 | 2018-04-13 | Alarm circuit and air heating type warmer |
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| CN108375106A (en) | 2018-08-07 |
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