CN213275761U - Electrical phase detection device for household electrical appliance and household electrical appliance - Google Patents
Electrical phase detection device for household electrical appliance and household electrical appliance Download PDFInfo
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- CN213275761U CN213275761U CN202021258993.XU CN202021258993U CN213275761U CN 213275761 U CN213275761 U CN 213275761U CN 202021258993 U CN202021258993 U CN 202021258993U CN 213275761 U CN213275761 U CN 213275761U
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Abstract
The utility model discloses an electric phase detection device and tame electric installation for tame electric installation, wherein, electric phase detection device includes first instruction unit, second instruction unit and third instruction unit, first instruction unit connection is to between the zero line and the ground wire of tame electric installation's three-phase plug, second instruction unit connection is to between the zero line and the live wire of three-phase plug, third instruction unit connection is to between the live wire and the ground wire of three-phase plug, wherein, when three-phase plug connection is to the three-phase socket, through first instruction unit, the power consumption phase place of tame electric installation is detected to the instruction condition of second instruction unit and third instruction unit. Therefore, when the power utilization phase of the household electrical equipment is abnormal, the safety of the user is prompted through the indicating unit, the user is guided to eliminate the abnormality, and therefore the electric shock hidden danger is eliminated.
Description
Technical Field
The utility model relates to the technical field of household appliances, especially, relate to an electric phase detection device and a household electrical appliances for household electrical appliances.
Background
Since there are cases where the installation of electricity is not standardized, for example, no ground wire is disposed, or a zero line is reversely connected to a live line, it is very easy to cause an electric shock safety accident or the household appliance cannot normally operate, and for this reason, the household appliance of the related art is generally provided with a detection device to ensure the safety of electricity consumption of a user.
However, the detection device of the related art can only achieve leakage detection and ground wire detection, but cannot detect whether the zero line and the live line are reversely connected, and when an abnormality is detected, a power failure process is usually adopted, so that a user cannot know a fault point, the abnormality cannot be timely eliminated, and normal use of the user is affected.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, an object of the utility model is to provide an electric phase detection device for household electrical appliances, can show user's safety through the indicating unit after the power consumption phase place of household electrical appliances appears unusually to guide the user to get rid of unusually, thereby, eliminate the hidden danger of electric shock.
A second object of the present invention is to provide a household electrical appliance.
In order to achieve the above object, the utility model discloses an electric phase detection device for household electrical appliances that first aspect provided, including first indicating unit, second indicating unit and third indicating unit, first indicating unit is connected to between the zero line and the ground wire of household electrical appliances's three-phase plug, second indicating unit is connected to between the zero line and the live wire of three-phase plug, third indicating unit is connected to between the live wire and the ground wire of three-phase plug, wherein, when three-phase plug is connected to the three-phase socket, through first indicating unit second indicating unit with the instruction condition of third indicating unit detects household electrical appliances's power consumption phase place.
According to the utility model discloses an electricity phase detection device for tame electric installation, between the zero line and the ground wire of first instruction unit connection to tame electric installation's three-phase plug, between the zero line and the live wire of second instruction unit connection to three-phase plug, between the live wire and the ground wire of third instruction unit connection to three-phase plug, wherein, when three-phase plug connection to three-phase socket, through the instruction aspect detection tame electric installation's of first instruction unit, second instruction unit and third instruction unit power consumption phase place. Therefore, when the power utilization phase of the household electrical equipment is abnormal, the safety of the user is prompted through the indicating unit, the user is guided to eliminate the abnormality, and therefore the electric shock hidden danger is eliminated.
In addition, according to the present invention, the electrical phase detecting device for household electrical appliance can further have the following additional technical features:
in some examples, an input end of the first indicating unit is connected to a zero line of the three-phase plug, an output end of the first indicating unit is connected to a ground line of the three-phase plug, an input end of the second indicating unit is connected to a zero line of the three-phase plug, an output end of the second indicating unit is connected to a live line of the three-phase plug, an input end of the third indicating unit is connected to a live line of the three-phase plug, and an output end of the third indicating unit is connected to a ground line of the three-phase plug.
In some examples, the first indication unit includes a first diode, a first resistor, and a first LED lamp, an anode of the first diode is connected to a zero line of the three-phase plug, a cathode of the first diode is connected to one end of the first resistor, another end of the first resistor is connected to an anode of the first LED lamp, and a cathode of the first LED lamp is connected to a ground line of the three-phase plug.
In some examples, the second indication unit includes a second diode, a second resistor, and a second LED lamp, an anode of the second diode is connected to a zero line of the three-phase plug, a cathode of the second diode is connected to one end of the second resistor, another end of the second resistor is connected to an anode of the second LED lamp, and a cathode of the second LED lamp is connected to a live line of the three-phase plug.
In some examples, the third indicating unit includes a third diode, a third resistor, and a third LED lamp, an anode of the third diode is connected to the live wire of the three-phase plug, a cathode of the third diode is connected to one end of the third resistor, the other end of the third resistor is connected to an anode of the third LED lamp, and a cathode of the third LED lamp is connected to the ground wire of the three-phase plug.
In some examples, when the first indication unit and the second indication unit are lighted and the third indication unit is extinguished, the live wire and the neutral wire of the three-phase socket are in opposite phases and the ground wire is normal; when the first indicating unit and the third indicating unit are turned off and the second indicating unit is turned on, the live wire and the zero wire of the three-phase socket are normal and the ground wire is in phase failure; when the first indicating unit and the third indicating unit are lightened and the second indicating unit is extinguished, the phase of the live wire and the phase of the ground wire of the three-phase socket are reversed and the zero line of the three-phase socket is normal.
In some examples, the electrical phase detection device is disposed on the home appliance or on the three-phase plug.
In order to achieve the above object, the second aspect of the present invention provides a home appliance including the above electrical phase detection device for home appliances.
According to the utility model discloses a household electrical appliances adopts foretell electric phase detection device for household electrical appliances, can appear unusual back in household electrical appliances's power consumption phase place, through the indicating unit suggestion user safety to guide the user to get rid of unusually, thereby, eliminate the hidden danger of electrocution.
In addition, according to the present invention, the household electrical appliance can further have the following additional technical features:
in some examples, the home appliance is an electric water heater, a refrigerator, an air conditioner, or an electric cooker.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a block diagram of an electrical phase detection apparatus for a household appliance according to an embodiment of the present invention;
fig. 2 is an electrical schematic diagram of an electrical phase detection apparatus according to an embodiment of the present invention;
fig. 3 is a schematic block diagram of a home appliance according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The electric phase detection device for a home appliance and the home appliance according to the embodiments of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a block diagram of an electrical phase detection apparatus for a household electrical appliance according to an embodiment of the present invention.
As shown in fig. 1, an electrical phase detection apparatus 100 for a home appliance includes: a first indicating unit 10, a second indicating unit 20, and a third indicating unit 30.
Specifically, as shown in fig. 1, the first indicating unit 10 is connected between a neutral line and a ground line of a three-phase plug of the household appliance, the second indicating unit 20 is connected between a neutral line and a live line of the three-phase plug, and the third indicating unit 30 is connected between a live line and a ground line of the three-phase plug, wherein when the three-phase plug is connected to a three-phase socket, the power utilization phase of the household appliance is detected through indication conditions of the first indicating unit 10, the second indicating unit 20, and the third indicating unit 30.
Specifically, when the three-phase plug is connected to the three-phase socket, the first indicating unit 10 may be connected between a neutral line and a ground line of the three-phase plug, the second indicating unit 20 may be connected between a neutral line and a live line of the three-phase plug, and the third indicating unit 30 may be connected between a live line and a ground line of the three-phase plug, so that the phase of power consumption of the home appliance is detected by the first indicating unit 10, the second indicating unit 20, and the third indicating unit 30, and the situation is indicated.
Further, as shown in fig. 1, an input end of the first indicating unit 10 is connected to a zero line of the three-phase plug, an output end of the first indicating unit 10 is connected to a ground line of the three-phase plug, an input end of the second indicating unit 20 is connected to a zero line of the three-phase plug, an output end of the second indicating unit 20 is connected to a live line of the three-phase plug, an input end of the third indicating unit 30 is connected to a live line of the three-phase plug, and an output end of the third indicating unit 30 is connected to a ground line of the three-phase plug.
It is understood that the first indicating unit 10 is used for detecting a potential difference between the zero line and the ground line, the second indicating unit 20 is used for detecting a potential difference between the zero line and the live line, and the third indicating unit 30 is used for detecting a potential difference between the live line and the ground line.
Further, as shown in fig. 2, the first indicating unit 10 includes a first diode D1, a first resistor R1, and a first LED lamp LED1, an anode of the first diode D1 is connected to the neutral line of the three-phase plug, a cathode of the first diode D1 is connected to one end of the first resistor R1, the other end of the first resistor R1 is connected to an anode of the first LED lamp LED1, and a cathode of the first LED lamp LED1 is connected to the ground line of the three-phase plug.
It can be understood that, if the phases of the zero line and the ground line are normal, no potential difference or a very small potential difference exists between the zero line and the ground line, and no conducting voltage is formed at the two ends of the first diode D1, at this time, the first diode D1 is turned off, and the first LED lamp LED1 is in an off state.
In addition, if a potential difference is generated across the first diode D1, a turn-on voltage is generated across the first diode D1, so that the first diode D1 is turned on, and the first LED lamp LED1 is in an on state, it is considered that the phase of the zero line or the ground line is abnormal.
Further, as shown in fig. 2, the second indicating unit 20 includes a second diode D2, a second resistor R2, and a second LED lamp LED2, an anode of the second diode D2 is connected to the neutral line of the three-phase plug, a cathode of the second diode D2 is connected to one end of the second resistor R2, the other end of the second resistor R2 is connected to an anode of the second LED lamp LED2, and a cathode of the second LED lamp LED2 is connected to the live line of the three-phase plug.
It can be understood that, if the phases of the zero line and the live line are normal, due to the potential difference between the zero line and the live line, a conducting voltage is formed across the second diode D2, at this time, the second diode D2 is conducted, and the second LED lamp LED2 is in an illuminated state.
In addition, if there is no or very little potential difference between the two terminals of the second diode D2, no conducting voltage is formed between the two terminals of the second diode D2, so that the second diode D2 is turned off, and the second LED lamp LED2 is in an off state, it can be considered that the phase of the zero line or the live line is abnormal.
Further, as shown in fig. 2, the third indicating unit 30 includes a third diode D3, a third resistor R3, and a third LED lamp LED3, an anode of the third diode D3 is connected to a live line of the three-phase plug, a cathode of the third diode D3 is connected to one end of the third resistor R3, another end of the third resistor R3 is connected to an anode of the third LED lamp LED3, and a cathode of the third LED lamp LED3 is connected to a ground line of the three-phase plug.
It can be understood that if the phases of the live line and the ground line are normal, a conducting voltage is formed across the third diode D3 due to a potential difference between the live line and the ground line, and at this time, the third diode D3 is turned on, and the third LED lamp LED3 is in an illuminated state.
In addition, since there is no or very little potential difference between the two ends of the third diode D3, no conducting voltage is formed between the two ends of the third diode D3, at this time, the third diode D3 is turned off, and the third LED lamp LED3 is in an off state, and it can be considered that the phase of the live wire or the neutral wire is abnormal.
Further, when the first indication unit 10 and the second indication unit 20 are turned on and the third indication unit 30 is turned off, the phase of the live wire and the phase of the zero wire of the three-phase socket are reversed, and the ground wire is normal; when the first indicating unit 10 and the third indicating unit 30 are turned off and the second indicating unit 20 is turned on, the live wire and the zero wire of the three-phase socket are normal and the ground wire is in phase failure; when the first indicating unit 10 and the third indicating unit 30 are turned on and the second indicating unit 20 is turned off, the live wire and the ground wire of the three-phase socket are reversed and the zero wire is normal.
The indication states of the first indication unit 10, the second indication unit 20 and the third indication unit 30 will be described with reference to fig. 2.
Before describing the indication states of the first indication unit 10, the second indication unit 20 and the third indication unit 30, it should be noted that if the phases of the ground wire, the zero wire and the live wire are normal, the first indication unit 10 is in a no-current state, and the second indication unit 20 and the third indication unit 30 are in a current-carrying state.
It can be seen that when the first indication unit 10 and the second indication unit 20 are turned on and the third indication unit 30 is turned off, the phase of the zero line or the ground line is considered to be abnormal because the first indication unit 10 is turned on, the phase of the zero line and the phase of the live line are considered to be normal because the second indication unit 20 is turned on, and the phase of the live line are considered to be abnormal because the third indication unit 30 is turned off, and the phases of the live line and the ground line are considered to be abnormal when the phases of the ground line, the zero line and the live line are normal, the states of the first indication unit 10, the second indication unit 20 and the third indication unit 30 are known, and the live line and.
When the first indication unit 10 and the third indication unit 30 are turned off and the second indication unit 20 is turned on, the phases of the zero line and the ground line can be considered to be normal because the first indication unit 10 is turned off, the phases of the live line and the ground line can be considered to be abnormal because the third indication unit 30 is turned off, and the phases of the live line and the ground line can be considered to be normal because the second indication unit 20 is turned on.
When the first indication unit 10 and the third indication unit 30 are turned on and the second indication unit 20 is turned off, since the first indication unit 10 is turned on, the phase of the zero line or the ground line is considered to be abnormal, the second indication unit 20 is turned off, the phase of the zero line or the live line is considered to be abnormal, and the third indication unit 30 is turned on, the phase of the live line and the ground line is considered to be normal, when the phases of the ground line, the zero line and the live line are normal, the states of the first indication unit 10, the second indication unit 20 and the third indication unit 30 are known, and the live line, the ground line and the zero line of the three-phase socket are inverted and normal at present.
Therefore, based on the utility model discloses an electric phase detection device 100 for household electrical appliances, the user can in time learn the power consumption phase place and the concrete abnormal conditions of household electrical appliances through the pilot lamp state of first LED lamp LED1, second LED lamp LED2 and third LED lamp LED3 that first pilot unit 10, second pilot unit 20 and third pilot unit 30 correspond respectively.
Alternatively, the electric phase detecting device 100 may be provided on a home appliance, or on a three-phase plug.
Optionally, the electrical phase detection apparatus 100 may further include an alarm module (not shown), and when the electrical phase detection apparatus detects the power phase abnormality of the household appliance, the alarm module may issue an alarm message, and may alert the user of the power phase abnormality of the household appliance, where the alarm message may include, but is not limited to, an audio alarm and a voice alarm.
To sum up, according to the utility model discloses an electric phase detection device for tame electric installation, first instruction unit is connected to between the zero line and the ground wire of tame electric installation's three-phase plug, and the second instruction unit is connected to between the zero line and the live wire of three-phase plug, and the third instructs between the live wire and the ground wire that the unit is connected to the three-phase plug, wherein, when three-phase plug connects to the three-phase socket, through the instruction condition detection tame electric installation's power consumption phase place of first instruction unit, second instruction unit and third instruction unit. Therefore, when the power utilization phase of the household electrical equipment is abnormal, the safety of the user is prompted through the indicating unit, the user is guided to eliminate the abnormality, and therefore the electric shock hidden danger is eliminated.
Fig. 3 is a schematic block diagram of a home appliance according to an embodiment of the present invention. As shown in fig. 3, the home appliance 1000 includes the electrical phase detection apparatus 100 for a home appliance according to the foregoing embodiment, and can implement a specific implementation manner corresponding to the electrical phase detection apparatus 100 for a home appliance one to one, which is not described herein again.
Alternatively, the home appliance may be an electric water heater, a refrigerator, an air conditioner, or an electric cooker.
To sum up, according to the utility model discloses a household electrical appliances adopts foretell electric phase detection device for household electrical appliances, can appear unusual back in household electrical appliances' the power consumption phase place, through the indicating unit suggestion user safety to guide the user to get rid of unusually, thereby, eliminate the hidden danger of electrocution.
It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (9)
1. The utility model provides an electric phase detection device for tame electric installation, its characterized in that includes first indicating unit, second indicating unit and third indicating unit, first indicating unit is connected to between the zero line and the ground wire of tame electric installation's three-phase plug, the second indicating unit is connected to between the zero line and the live wire of three-phase plug, the third indicating unit is connected to between the live wire and the ground wire of three-phase plug, wherein, when three-phase plug is connected to the three-phase socket, through first indicating unit the second indicating unit with the instruction condition of third indicating unit detects tame electric installation's power consumption phase place.
2. The electrical phase detection device of claim 1, wherein an input end of the first indication unit is connected to a zero line of the three-phase plug, an output end of the first indication unit is connected to a ground line of the three-phase plug, an input end of the second indication unit is connected to a zero line of the three-phase plug, an output end of the second indication unit is connected to a live line of the three-phase plug, an input end of the third indication unit is connected to a live line of the three-phase plug, and an output end of the third indication unit is connected to a ground line of the three-phase plug.
3. The electrical phase detecting device of claim 2, wherein the first indicating unit comprises a first diode, a first resistor, and a first LED lamp, wherein an anode of the first diode is connected to a zero line of the three-phase plug, a cathode of the first diode is connected to one end of the first resistor, another end of the first resistor is connected to an anode of the first LED lamp, and a cathode of the first LED lamp is connected to a ground line of the three-phase plug.
4. The electrical phase detecting device for home appliances according to claim 3, wherein the second indicating unit includes a second diode, a second resistor, and a second LED lamp, an anode of the second diode is connected to a neutral line of the three-phase plug, a cathode of the second diode is connected to one end of the second resistor, the other end of the second resistor is connected to an anode of the second LED lamp, and a cathode of the second LED lamp is connected to a live line of the three-phase plug.
5. The electrical phase detecting device for home appliances according to claim 4, wherein the third indicating unit includes a third diode, a third resistor, and a third LED lamp, an anode of the third diode is connected to the live wire of the three-phase plug, a cathode of the third diode is connected to one end of the third resistor, the other end of the third resistor is connected to an anode of the third LED lamp, and a cathode of the third LED lamp is connected to the ground wire of the three-phase plug.
6. The electrical phase detection apparatus for household electrical appliances according to any one of claims 1 to 5,
when the first indicating unit and the second indicating unit are lightened and the third indicating unit is extinguished, the phase of the live wire and the phase of the zero wire of the three-phase socket are reversed and the ground wire of the three-phase socket is normal;
when the first indicating unit and the third indicating unit are turned off and the second indicating unit is turned on, the live wire and the zero wire of the three-phase socket are normal and the ground wire is in phase failure;
when the first indicating unit and the third indicating unit are lightened and the second indicating unit is extinguished, the phase of the live wire and the phase of the ground wire of the three-phase socket are reversed and the zero line of the three-phase socket is normal.
7. The electrical phase detection device for an electric home appliance according to any one of claims 1 to 5, wherein the electrical phase detection device is provided on the electric home appliance or on the three-phase plug.
8. An electric household appliance comprising an electric phase detection device for household appliances according to any one of claims 1 to 7.
9. The home appliance of claim 8, wherein the home appliance is an electric water heater, a refrigerator, an air conditioner, or an electric cooker.
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| CN202021258993.XU CN213275761U (en) | 2020-06-30 | 2020-06-30 | Electrical phase detection device for household electrical appliance and household electrical appliance |
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| CN202021258993.XU CN213275761U (en) | 2020-06-30 | 2020-06-30 | Electrical phase detection device for household electrical appliance and household electrical appliance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866523A (en) * | 2020-06-30 | 2021-12-31 | 芜湖美的厨卫电器制造有限公司 | Electrical phase detection device and method for household appliance and household appliance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866523A (en) * | 2020-06-30 | 2021-12-31 | 芜湖美的厨卫电器制造有限公司 | Electrical phase detection device and method for household appliance and household appliance |
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