CN219612086U - Indicator light control circuit, electric steamer and electric cooking utensil - Google Patents
Indicator light control circuit, electric steamer and electric cooking utensil Download PDFInfo
- Publication number
- CN219612086U CN219612086U CN202321121043.6U CN202321121043U CN219612086U CN 219612086 U CN219612086 U CN 219612086U CN 202321121043 U CN202321121043 U CN 202321121043U CN 219612086 U CN219612086 U CN 219612086U
- Authority
- CN
- China
- Prior art keywords
- control module
- heating device
- control circuit
- resistive heating
- indicator light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Audible And Visible Signals (AREA)
- Cookers (AREA)
Abstract
The utility model relates to an indicator light control circuit, an electric steamer and an electric cooking appliance, wherein the indicator light control circuit is suitable for the electric steamer, and the electric steamer comprises a multicolor indicator light; the indicator light control circuit comprises a multi-selection switch, a first control module and a second control module; the multi-selection switch is used for switching and selecting the working state of the first control module and/or the second control module and controlling the corresponding lamp color in the multicolor indicator lamp to be in a lighting state or a extinguishing state according to the working state; a current limiting unit is arranged in the first control module; the current limiting unit is used for controlling the lamp color corresponding to the first control module in the multicolor indicator lamp to be in an extinguishing state when the first control module and the second control module are simultaneously in a working state; the utility model provides the indication that a plurality of heating functions are free from color cross, the circuit structure is simple, and the production cost is reduced; the problem of have the pilot lamp control circuit complicacy in the correlation technique, lead to manufacturing cost high is solved.
Description
Technical Field
The utility model relates to the technical field of small household appliances, in particular to an indicator lamp control circuit, an electric steamer and an electric cooking appliance.
Background
The existing electric steamer structure comprises a base and a steamer arranged on the base; the electric steamer has a heating function and a heat preservation function; an indicator light corresponding to the heating function and the heat preservation function is arranged on the base, for example: the red indicator lights are lightened to correspond to the heating function; the green indicator lights are lighted to correspond to the heat preservation function.
The current indicator light control circuit for the electric steamer comprises a switch circuit, a heating control circuit and a heat preservation control circuit; wherein, each control circuit is required to be provided with a resistive heating device and an indicator lamp; the working states of the two control circuits are switched by the switch circuit to realize heating or heat preservation, for example: the switch circuit is switched to the heating control circuit, so that the resistive heating device and the indicator lamp in the heating control circuit are in a working state; if the heat preservation work is needed, the switch circuit is switched to the heat preservation control circuit for work; in such a control circuit, a plurality of indicator lamps and other devices need to be configured, so that the overall circuit structure is complex, and the production cost is high.
Aiming at the problem that the control circuit of the indicator lamp is complex and the production cost is high in the related art, no effective solution is proposed at present.
Disclosure of Invention
In view of the foregoing, it is necessary to provide an indicator light control circuit, an electric steamer and an electric cooking appliance, which solve the problem of high production cost caused by the complicated indicator light control circuit in the related art.
The utility model provides an indicator light control circuit which is suitable for an electric steamer, wherein the electric steamer comprises a multicolor indicator light; the indicator light control circuit comprises a multi-selection switch, a first control module and a second control module;
the multi-selection switch is used for switching and selecting the working state of the first control module and/or the second control module and controlling the corresponding lamp color in the multicolor indicator lamp to be in a lighting state or a extinguishing state according to the working state;
a current limiting unit is arranged in the first control module;
the current limiting unit is used for controlling the lamp color corresponding to the first control module in the multicolor indicator lamp to be in an extinction state when the first control module and the second control module are in a working state at the same time.
Therefore, under the operation heating function, the multicolor indicator lamp cannot cross color, and the circuit structure is simple, so that the production cost is reduced; the problem of the pilot lamp control circuit complicacy in the correlation technique, lead to high in production cost is also solved.
In one embodiment, the first control module further comprises a switch port K1, a resistive heating device H1, a diode D1, and a green light in the multi-color indicator light;
the switch port K1 is connected with one end of the resistive heating device H1 and is connected with one end of the diode D1 through the current limiting unit;
the other end of the diode D1 is connected with the input end of the green light;
and the output end of the green light is respectively connected with the second control module and a zero line of an external power supply.
Therefore, the first control module is simple in structure and can stably control the heat preservation function and the green light to be matched for use.
In one embodiment, the first control module further includes a thermostat W1;
the temperature controller W1 is arranged between the switch port K1 and the resistive heating device H1 and is used for collecting first temperature information in the electric steamer, and when the first temperature information exceeds a preset first temperature threshold value, the connection between the resistive heating device H1 and the switch port K1 is disconnected.
Thus, the automatic constant temperature and heat preservation function is realized by utilizing the temperature controller W1.
In one embodiment, the first control module further comprises a switch port K2;
the switch port K2 is connected with one end of the resistive heating device H1.
In this way, by switching the switch port K1 and the switch port K2, the switching of the first control module for heating and heating is realized without additionally configuring other circuits.
In one embodiment, the second control module includes a switch port K3, a resistive heating device H2, a diode D2, and a red light in the multi-color indicator light;
the switch port K3 is respectively connected with one end of the resistive heating device H2 and one end of the diode D2;
the other end of the diode D1 is connected with the input end of the red light;
and the output end of the red light is respectively connected with the output end of the green light and a zero line of an external power supply.
So for second control module simple structure can stable control heating function and red light's cooperation use.
In one embodiment, the second control module further includes a thermostat W2;
one end of the temperature controller W2 is respectively connected with the other end of the resistive heating device H1 and the other end of the resistive heating device H2; the other end of the temperature controller W2 is connected with a zero line of the external power supply;
the temperature controller W2 is used for collecting second temperature information in the electric steamer, and when the second temperature information exceeds a preset second temperature threshold value, the connection of the resistive heating device H1 and the zero line of the external power supply is disconnected.
Thus, the automatic constant temperature heating function is realized by utilizing the temperature controller W2.
In one embodiment, the second control module further comprises a switch port K4 and a resistive heating device H3;
the switch port K4 is connected with one end of the resistive heating device H3;
the other end of the resistive heating device H3 is connected with the other end of the resistive heating device H2, the other end of the resistive heating device H1 and a zero line of an external power supply respectively.
Therefore, the heating function of different gears is realized by matching different switch ports selected by the multiple selection switches, and the circuit structure is simple.
In one embodiment, the second control module further comprises a protection unit;
the protection unit is arranged between the common negative end of the red light and the green light and the zero line of the external power supply.
In this way, protection for the multicolor indicator light is provided.
In one embodiment, the current limiting unit is a current limiting resistor R2 or a zener diode.
Therefore, the purpose can be realized by adopting a simple device, and the production cost is reduced.
In one embodiment, the indicator light control circuit further comprises a thermal fuse Z;
the thermal fuse Z is arranged between a live wire of an external power supply and the multi-selection switch.
Thus, protection of the entire circuit is achieved.
The utility model provides an electric steamer, which comprises a base, an electric steamer arranged on the base and an indicator light control circuit, wherein the indicator light control circuit is used for controlling the indicator light control circuit to control the electric steamer;
the indicator light control circuit is arranged on the base.
The utility model provides an electric cooking appliance, which comprises a cooker and an indicator lamp control circuit, wherein the indicator lamp control circuit is used for controlling the cooker;
the indicating lamp control circuit is arranged on the cooker.
The utility model provides an indicator light control circuit, an electric steamer and an electric cooking appliance, wherein the indicator light control circuit is applicable to the electric steamer, and the electric steamer comprises a multicolor indicator light; the indicator light control circuit comprises a multi-selection switch, a first control module and a second control module; the multi-selection switch is used for switching and selecting the working state of the first control module and/or the second control module and controlling the corresponding lamp color in the multicolor indicator lamp to be in a lighting state or a extinguishing state according to the working state; a current limiting unit is arranged in the first control module; the current limiting unit is used for controlling the lamp color corresponding to the first control module in the multicolor indicator lamp to be in an extinguishing state when the first control module and the second control module are simultaneously in a working state; according to the utility model, through switching of the working states of the first control module and/or the second control module and combining the on and off states of the multicolor indicator lamp, the indication that a plurality of heating functions are not cross-colored is provided, the circuit structure is simple, and the production cost is reduced; the problem of have the pilot lamp control circuit complicacy in the correlation technique, lead to manufacturing cost high is solved.
Drawings
Fig. 1 is a schematic structural diagram of an indicator light control circuit according to an embodiment of the present utility model;
FIG. 2 is a circuit diagram of an indicator light control circuit according to an embodiment of the present utility model;
fig. 3 is a circuit configuration diagram of an indicator lamp control circuit according to a preferred embodiment of the present utility model.
Reference numerals: 10. a multiple selection switch; 20. a first control module; 21. a current limiting unit; 30. and a second control module.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.
It will be understood that when an element is referred to as being "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
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 utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 and 2, the present utility model provides an indicator light control circuit, which is suitable for an electric steamer, wherein the electric steamer comprises a multicolor indicator light; the indicator light control circuit comprises a multi-selection switch 10, a first control module 20 and a second control module 30;
the multi-selection switch 10 is used for switching and selecting the working state of the first control module 20 and/or the second control module 30 and controlling the corresponding lamp color in the multicolor indicator lamp to be in a lighting state or a extinguishing state according to the working state;
the first control module 20 is provided with a current limiting unit 21;
the current limiting unit 21 is configured to control a color of a lamp corresponding to the first control module 20 in the multicolor indicator lamp to be in an off state when the first control module 20 and the second control module 30 are simultaneously in an operating state.
The base of the electric steamer is provided with a multicolor indicator lamp and an indicator lamp control circuit; the indicating lamp control circuit is used for controlling the operation function of the electric steamer and the multicolor indicating lamp to display corresponding lamp colors. Such as: the multicolor indicator lamp is a red-green double-color indicator lamp, and the electric steamer has a heating function and a heat preservation function; the lamp color corresponding to the heating function is red (the red lamp in the red-green double-color indicator lamp is in a lighting state), and the lamp color corresponding to the heat preservation function is green (the red lamp in the red-green double-color indicator lamp is in a lighting state). In other embodiments, the running functions and the multicolor indicator lamps may be adapted according to the application scenario, which is not illustrated.
The indicator light control circuit can be directly connected with an external power supply. Such as: the external power supply is commercial power, the multi-selection switch 10 is connected with a live wire of the commercial power, the first control module 20 and the second control module 30 are connected with a zero line of the commercial power, and the multi-selection switch 10 is used for switching and selecting whether the first control module 20 and/or the second control module 30 is connected with the commercial power or not so as to control the working states of the first control module 20 and the second control module 30 and further control the corresponding lamp colors in the multicolor indicator lamp to be in a lighting state or a extinguishing state.
The multi-selection switch 10 may be a knob switch, and the first control module 20 and/or the second control module 30 may be switched and selected by rotating the knob switch. If the first control module 20 is switched to be connected with the mains supply, the operation of the heat preservation function can be considered at the moment, and the multicolor indicator lights illuminate green lights; if the switch to the second control module 30 is connected with the mains supply, the heating function can be considered to be operated at the moment, and the multicolor indicator lamp lights up to be red; if the first control module 20 and the second control module 30 are switched to be in the working state at the same time, the resistive heating devices in the first control module 20 and the second control module 30 can be considered to work at the same time, so that the heating function of a higher gear can be operated; the first control module 20 which is originally a heat preservation function is taken as a part of a heating function, so that the heating function of a plurality of gears is realized; and utilize current limiting unit 21 when first control module 20 and second control module 30 are in operating condition simultaneously, control among the polychromatic pilot lamp and the lamp look that first control module 20 corresponds be in the state of extinguishing for under the operation heating function, polychromatic pilot lamp can not cross color, and circuit structure is simple, reduction in production cost. Therefore, the problem of high production cost caused by the fact that the control circuit of the indicator lamp is complex in the related technology is solved.
The following details the above components:
in some embodiments, the first control module 20 further includes a switch port K1, a resistive heating device H1, a diode D1, and a green light in a multicolor indicator lamp, on the basis of including the current limiting unit 21;
a switch port K1 connected with one end of the resistive heating device H1 and connected with one end of the diode D1 through a current limiting unit 21;
the other end of the diode D1 is connected with the input end of the green light;
the output end of the green light is respectively connected with the second control module 30 and the zero line of the external power supply.
Wherein the resistive heating device H1 is a heating element that heats after being energized; the power of the resistive heating device H1 is lower than that of the resistive heating device H2, and the resistive heating device H1 can be used for low-grade heating or heat preservation. Such as: the power of the resistive heating device H1 may be 400W to 600W; the power of the resistive heating device H2 may be 700W to 900W. Wherein, the switch port K1 is matched with the multi-choice switch 10, when the multi-choice switch 10 is switched to be connected with the switch port K1, the resistive heating device H1 is conducted to generate heat, and the current passes through the current limiting unit 21 and the diode D1 to light a green light in the multicolor indicator lamp; at this time, although the current limiting unit 21 will also work, the current-limited circuit can still light up the green light in the multicolor indicator lamp.
The diode D1 is disposed between the green light and the current limiting unit 21, and has a unidirectional conduction function, and the current flows from the current limiting unit 21 to the green light, so that the color of the multicolor indicator lamp can be controlled, and the error of controlling the color of the lamp can be avoided or reduced.
Thus, the first control module 20 in this embodiment has a simple structure, and can stably control the heat preservation function and the green light to be used in cooperation.
In some of these embodiments, the first control module 20 further includes a thermostat W1;
the temperature controller W1 is arranged between the switch port K1 and the resistive heating device H1 and is used for collecting first temperature information in the electric steamer, and when the first temperature information exceeds a preset first temperature threshold value, the connection between the resistive heating device H1 and the switch port K1 is disconnected.
Wherein, the temperature controller W1 can be a low-temperature controller; the interior of which may be provided with a first temperature threshold value, which may be set by a user. Disconnecting the resistive heating device H1 from the switch port K1 when the acquired first temperature information exceeds (is greater than or equal to) the first temperature threshold; when the first temperature information does not exceed (is smaller than) the first temperature threshold value, the connection of the resistive heating device H1 and the switch port K1 is maintained.
In this way, an automatic constant temperature and heat preservation function can be realized, if the temperature controller W1 is not provided, the user needs to manually close when the first temperature information exceeds the first temperature threshold value, for example, the multi-selection switch 10 is switched to the switch port K0. The switch port K0 may belong to the first control module 20 for turning off all functions.
In some of these embodiments, the first control module 20 further includes a switch port K2;
and a switch port K2 is connected with one end of the resistive heating device H1.
Wherein, when the multi-selection switch 10 is connected with the switch port K2, the conduction of the resistive heating device H1 can be used as a heating function.
Thus, the first control module 20 cooperates with different switch ports selected by the multiple selection switches 10 to realize different heat preservation or heating functions, and the circuit structure is simple.
In some of these embodiments, the second control module 30 includes a switch port K3, a resistive heating device H2, a diode D2, and a red light in a multicolor indicator light;
a switch port K3 which is respectively connected with one end of the resistive heating device H2 and one end of the diode D2;
the other end of the diode D1 is connected with the input end of the red light;
the output end of the red light is respectively connected with the output end of the green light and the zero line of an external power supply.
The resistive heating device H2 and the resistive heating device H1 may be the same type of device, but with different powers, and generate heat after being electrified. Wherein, switch port K3 cooperates with many selector switch 10, and when many selector switch 10 switches to be connected with switch port K3, resistive heating device H2 switches on and generates heat, and the electric current is lighted the red light in the polychrome pilot lamp through diode D2.
The diode D2 is arranged between the red light and the switch port K3, has a unidirectional conduction function, and flows from the switch port K3 to the red light, so that the lamp color of the multicolor indicator lamp can be controlled, and the control error of the lamp color is avoided or reduced.
Thus, the second control module 30 in this embodiment has a simple structure, and can stably control the heating function and the cooperation of the red light.
In some of these embodiments, the second control module 30 further includes a thermostat W2;
one end of the temperature controller W2 is respectively connected with the other end of the resistive heating device H1 and the other end of the resistive heating device H2; the other end of the temperature controller W2 is connected with a zero line of an external power supply;
and the temperature controller W2 is used for acquiring second temperature information in the electric steamer, and disconnecting the resistive heating device H1 and the resistive heating device H2 from a zero line of an external power supply when the second temperature information exceeds a preset second temperature threshold value.
Wherein, the temperature controller W2 can be a high-temperature controller; a second temperature threshold may be set inside, which may be set by a user. Disconnecting the resistive heating device H1 and the resistive heating device H2 from the zero line of the external power supply when the acquired second temperature information exceeds (is greater than or equal to) the second temperature threshold; and when the second temperature information does not exceed (less than) the second temperature threshold, maintaining conduction.
In this way, an automatic constant temperature heating function can be achieved, and if there is no thermostat W2, then the user is required to manually turn off, such as switching the multiple-choice switch 10 to switch port K0, when the second temperature information exceeds the second temperature threshold.
In some of these embodiments, the second control module 30 further includes a switch port K4 and a resistive heating device H3;
the switch port K4 is connected with one end of the resistive heating device H3;
the other end of the resistive heating device H3 is respectively connected with the other end of the resistive heating device H2, the other end of the resistive heating device H1 and a zero line of an external power supply.
Wherein, when the multi-selection switch 10 is connected with the switch port K4, the conduction of the resistive heating device H3 can be used as a heating function. The resistive heating device H3 and the resistive heating device H1 may be the same type of device, except for the difference in power, which both generate heat upon energization.
Therefore, the heating function of different gears is realized by matching different switch ports selected by the multi-selection switch 10, and the circuit structure is simple.
In some of these embodiments, the second control module 30 further includes a protection unit;
the protection unit is arranged between the common negative end of the red light and the green light and the zero line of the external power supply.
Wherein, the common shade end of the red light and the green light refers to the connecting end of the output end of the red light and the output end of the green land together; the protection unit may be a limiting resistor R1; the resistance value of the method can be determined by application scenes.
The current limiting resistor R1 is arranged between the common negative end of the red light and the green light and the zero line of the external power supply, so that the multicolor indicator lamp can be protected under the fluctuation of the voltage of the external power supply.
In some of these embodiments, the current limiting unit 21 is a current limiting resistor R2 or a zener diode.
The current limiting unit 21 is a current limiting resistor R2, and if the first control module 20 and the second control module 30 are in a working state at the same time, when the red light is turned on, the same lighting voltage is applied to the green light and the current limiting resistor R2, and after the current is limited by the current limiting resistor R2, the current flowing to the green light is smaller than the current for turning on the green light. Such as: the minimum lighting of the green light is 100 microamps; then the current to the green light is less than 100 microamps through the current limiting resistor R2, so that the green light is in an off state; the specific resistance of the current limiting resistor R2 may be determined by the application scenario.
In other embodiments, the current limiting unit 21 may be a zener diode or other devices, and if the current limiting unit is a zener diode, the voltage drop across the zener diode is relatively large when the red light is on, so that the requirement of lighting the green light is not met, and the other devices are not illustrated herein.
Therefore, the purpose can be realized by adopting a simple device, and the production cost is reduced.
In some of these embodiments, the indicator light control circuit further comprises a thermal fuse link Z;
the thermal link Z is provided between the hot line of the external power supply and the multiple-choice switch 10.
Wherein, the thermal fuse Z is a non-resettable disposable thermosensitive protection device; the overload protection function is mainly achieved between the live wire of the external power supply and the multi-selection switch 10.
The present embodiment is described and illustrated below by way of preferred embodiments.
Fig. 3 is a circuit configuration diagram of the indicator lamp control circuit of the present preferred embodiment. The indicator light control circuit comprises a thermal fuse Z, a knob switch, a first control module 20 and a second control module 30; wherein, the live wire of the external power supply is connected with the knob switch through the thermal fuse Z; the first control module 20 includes a switch port K1, a switch port K2, a temperature controller W1, a resistive heating device H1, a current limiting resistor R2, a diode D1, and a green light in the multicolor indicator lamp; the switch port K1 is respectively connected with one end of the temperature controller W1 and one end of the current limiting resistor R2; the current limiting resistor R2 is connected with the input end of a green light in the multicolor indicator lamp through a diode D1; the output end of the green light is respectively connected with one end of the current limiting resistor R1 and the output end of the red light; the other end of the temperature controller W1 is respectively connected with the switch port K2 and one end of the resistive heating device H1; and a switch port K2 is connected with one end of the resistive heating device H1. The second control module 30 includes a switch port K3, a resistive heating device H2, a switch port K4, a resistive heating device H3, a temperature controller W2, a current limiting resistor R1, a diode D2, and a red light in the multicolor indicator lamp; a switch port K3 which is respectively connected with one end of the resistive heating device H2 and one end of the diode D2; the other end of the diode D1 is connected with the input end of the red light; the output end of the red light is respectively connected with the output end of the green light and one end of the current limiting resistor R1; the other end of the current limiting resistor R1 is connected with a zero line of an external power supply. The switch port K4 is connected with one end of the resistive heating device H3; the other end of the resistive heating device H3 is respectively connected with the other end of the resistive heating device H2 and the other end of the resistive heating device H1 through a temperature controller W2 and is connected with a zero line of an external power supply. Wherein the power of the resistive heating device H1 is 500W; the power of the resistive heating device H2 is 800W; the power of the resistive heating device H3 was 800W. When the commercial power is in the negative half cycle of the alternating current, the diode D1 and the diode D2 can prevent the red light and the green light in the multicolor indicator lamp from being conducted.
In the preferred embodiment, the indicator light control circuit operates as follows:
1. the knob switch is turned on to the position of the switch port K0, the control circuit of the indicator lamp is in a closed state, no heating is performed, and the double-color indicator lamp is not lighted.
2. The knob switch is switched to the position of the switch port K1, and the resistive heating device H1 works and is in a heat preservation state with 500W power. As the switch port K3 is disconnected, the red light is not lighted; at this time, the overall voltage of the green light, the diode D1 and the current limiting resistor R2 is related to the external power supply; the current can also light green light after passing through the current limiting resistor R2, and the green light is lighted and the red light is not lighted at the moment.
3. The knob switch is turned on to the positions of a switch port K1, a switch port K2 and a switch port K3; at this time, the resistive heating devices H1 and H2 are operated in a heating state of 500 w+800w=1300W power. Because switch port K3 switches on, and the red light is bright, and red light voltage is limited to its lighting voltage (2V), and this time green light, diode D1 and current-limiting resistor R2's total voltage also restrict to this lighting voltage, again by current-limiting resistor R2 current-limiting after, lead to the electric current that flows to the green light to be less than the electric current that the green light was lighted, so, red light bright, green light is not bright, double-colored pilot lamp can not cross color.
4. The knob switch is turned on to the positions of a switch port K1, a switch port K2, a switch port K3 and a switch port K4; at this time, the resistive heating device H1, the resistive heating device H2, and the resistive heating device H3 are operated in a heating state of 500 w+800w+800w=2100W power; at this time, the red light is on, the green light is not on, and the double-color indicator light can not cross color.
Therefore, the preferred embodiment can combine and select a plurality of heating modes, has a simplified circuit structure, reduces the production cost, and prevents the double-color indicator lamp from color cross; the problem of have the pilot lamp control circuit complicacy in the correlation technique, lead to manufacturing cost high is solved.
In other embodiments, the red light and the green light of the preferred embodiments may also adopt a common-positive connection mode, and only the connection relation of the related circuits needs to be correspondingly adjusted, which is not illustrated herein.
The embodiment also provides an electric steamer, which comprises a base, the electric steamer arranged on the base and the indicator light control circuit in each embodiment; the pilot lamp control circuit sets up on the base.
It should be noted that, specific examples in this embodiment may refer to examples described in the foregoing embodiments and alternative implementations, and are not described in detail in this embodiment.
The embodiment also provides an electric cooking appliance, which comprises a cooker and the indicator light control circuit in each embodiment; the indicator light control circuit is arranged on the cooker.
Wherein, the electric cooking utensil includes but is not limited to electric heating lunch box, egg cooker and yoghurt maker etc..
It should be noted that, specific examples in this embodiment may refer to examples described in the foregoing embodiments and alternative implementations, and are not described in detail in this embodiment.
The technical features of the above-described embodiments may be combined in any manner, and for brevity, all of the possible combinations of the technical features of the above-described embodiments are not described, however, all of the combinations of the technical features should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
It will be appreciated by persons skilled in the art that the above embodiments have been provided for the purpose of illustrating the utility model and are not to be construed as limiting the utility model, and that suitable modifications and variations of the above embodiments are within the scope of the utility model as claimed.
Claims (12)
1. An indicator light control circuit is characterized by being suitable for an electric steamer, wherein the electric steamer comprises a multicolor indicator light; the indicator light control circuit comprises a multi-selection switch (10), a first control module (20) and a second control module (30);
the multi-selection switch (10) is used for switching and selecting the working state of the first control module (20) and/or the second control module (30) and controlling the corresponding lamp color in the multicolor indicator lamp to be in a lighting state or a extinguishing state according to the working state;
a current limiting unit (21) is arranged in the first control module (20);
the current limiting unit (21) is used for controlling the lamp color corresponding to the first control module (20) in the multicolor indicator lamp to be in an extinguishing state when the first control module (20) and the second control module (30) are simultaneously in a working state.
2. The indicator light control circuit of claim 1, wherein the first control module (20) further comprises a switch port K1, a resistive heating device H1, a diode D1, and a green light in the multi-color indicator light;
the switch port K1 is connected with one end of the resistive heating device H1 and is connected with one end of the diode D1 through the current limiting unit (21);
the other end of the diode D1 is connected with the input end of the green light;
the output end of the green light is respectively connected with the second control module (30) and a zero line of an external power supply.
3. The indicator light control circuit according to claim 2, characterized in that the first control module (20) further comprises a thermostat W1;
the temperature controller W1 is arranged between the switch port K1 and the resistive heating device H1 and is used for collecting first temperature information in the electric steamer, and when the first temperature information exceeds a preset first temperature threshold value, the connection between the resistive heating device H1 and the switch port K1 is disconnected.
4. The indicator light control circuit according to claim 2, wherein the first control module (20) further comprises a switch port K2;
the switch port K2 is connected with one end of the resistive heating device H1.
5. The indicator light control circuit according to claim 2, wherein the second control module (30) comprises a switch port K3, a resistive heating device H2, a diode D2 and a red light in the multi-color indicator light;
the switch port K3 is respectively connected with one end of the resistive heating device H2 and one end of the diode D2;
the other end of the diode D1 is connected with the input end of the red light;
and the output end of the red light is respectively connected with the output end of the green light and a zero line of an external power supply.
6. The indicator light control circuit according to claim 5, wherein the second control module (30) further comprises a thermostat W2;
one end of the temperature controller W2 is respectively connected with the other end of the resistive heating device H1 and the other end of the resistive heating device H2; the other end of the temperature controller W2 is connected with a zero line of the external power supply;
the temperature controller W2 is used for collecting second temperature information in the electric steamer, and when the second temperature information exceeds a preset second temperature threshold value, the connection of the resistive heating device H1 and the zero line of the external power supply is disconnected.
7. The indicator light control circuit of claim 5, wherein the second control module (30) further comprises a switch port K4 and a resistive heating device H3;
the switch port K4 is connected with one end of the resistive heating device H3;
the other end of the resistive heating device H3 is connected with the other end of the resistive heating device H2, the other end of the resistive heating device H1 and a zero line of an external power supply respectively.
8. The indicator light control circuit according to claim 5, characterized in that the second control module (30) further comprises a protection unit;
the protection unit is arranged between the common negative end of the red light and the green light and the zero line of the external power supply.
9. The indicator light control circuit according to claim 2, characterized in that the current limiting unit (21) is a current limiting resistor R2 or a zener diode.
10. The indicator light control circuit of claim 1, further comprising a thermal fuse Z;
the thermal fuse Z is arranged between a live wire of an external power supply and the multi-selection switch (10).
11. An electric steamer, characterized by comprising a base, the electric steamer arranged on the base and an indicator light control circuit as claimed in any one of claims 1-10;
the indicator light control circuit is arranged on the base.
12. An electric cooking appliance, comprising a cooker and an indicator light control circuit according to any one of claims 1-10;
the indicating lamp control circuit is arranged on the cooker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321121043.6U CN219612086U (en) | 2023-05-10 | 2023-05-10 | Indicator light control circuit, electric steamer and electric cooking utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321121043.6U CN219612086U (en) | 2023-05-10 | 2023-05-10 | Indicator light control circuit, electric steamer and electric cooking utensil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219612086U true CN219612086U (en) | 2023-08-29 |
Family
ID=87749620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321121043.6U Active CN219612086U (en) | 2023-05-10 | 2023-05-10 | Indicator light control circuit, electric steamer and electric cooking utensil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219612086U (en) |
-
2023
- 2023-05-10 CN CN202321121043.6U patent/CN219612086U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1989792B (en) | Color adjustable lamp | |
| CN219612086U (en) | Indicator light control circuit, electric steamer and electric cooking utensil | |
| US10251216B2 (en) | Cooking appliance and control method of the same | |
| EP1856951B1 (en) | Household appliance comprising a lighting device and method for controlling the activation thereof | |
| US20190178501A1 (en) | Method and apparatus for preventing cooktop fires | |
| CN202331082U (en) | External automatic controller for electric food warmer | |
| US4874929A (en) | Toaster oven/broiler with continuously energized indicator | |
| CN214510820U (en) | Heating, pilot lamp control circuit and electric rice cooker | |
| CN215874336U (en) | Working circuit of cooking device and oven with same | |
| JPS60159917A (en) | Temperature control and display | |
| CN217218797U (en) | Heating control circuit of electric cooking device and frying and baking machine | |
| CN201404051Y (en) | Intelligent electronic rice cooker | |
| CN201878116U (en) | Heater and internal circuit of heater | |
| CN210075605U (en) | Heating circuit | |
| DE3516788A1 (en) | Radiant heating device for cooking apparatuses, especially for glass-ceramic cooking hobs | |
| CN213786777U (en) | Electric food warmer with quickly-adjusted power | |
| US3297252A (en) | Self-clearing timer control circuits for cooking stoves and the like | |
| GB2114829A (en) | Control means for heating elements in a cooker hob | |
| CN204797624U (en) | Oven and state indicating circuit thereof | |
| JPH05272762A (en) | Method and device for providing heater for electric cooking instrument with visual indication | |
| CN103929862A (en) | LED power source, LED lamp and LED driving device | |
| JP2019132444A (en) | Heating cooker | |
| KR200258097Y1 (en) | Multi temperature controller | |
| CN2417800Y (en) | Heat-regulation type energy-saving electric cooker | |
| CN108571665A (en) | LED bulb and its operating method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |