CN217766794U - Built-in alternating current line sequence detection circuit of bathroom electrical apparatus and bathroom electrical apparatus - Google Patents
Built-in alternating current line sequence detection circuit of bathroom electrical apparatus and bathroom electrical apparatus Download PDFInfo
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- CN217766794U CN217766794U CN202220762229.9U CN202220762229U CN217766794U CN 217766794 U CN217766794 U CN 217766794U CN 202220762229 U CN202220762229 U CN 202220762229U CN 217766794 U CN217766794 U CN 217766794U
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Abstract
The utility model provides a bathroom electrical apparatus embeds alternating current line preface detection circuitry and bathroom electrical apparatus, including singlechip, line preface detection circuitry and load control unit, line preface detection circuitry include with first detection circuitry, second detection circuitry, third detection circuitry, first detection circuitry's input and the live wire of alternating current, zero line constitute the return circuit, second detection circuitry's input and live wire, the ground wire of alternating current constitute the return circuit, and third detection circuitry's input and zero line, the ground wire of alternating current constitute the return circuit, first detection circuitry, second detection circuitry, third detection circuitry's output are connected respectively the input of singlechip, the first output of singlechip is connected load control unit. The utility model provides an in bathroom electrical apparatus can be placed in to technical scheme, do not rely on the commercial power detection service of producer after-sale service, the user can monitor commercial power input's line sequence characteristic at any time through the product.
Description
Technical Field
The utility model belongs to bathroom electrical apparatus field especially relates to a built-in alternating current line preface detection circuitry of bathroom electrical apparatus and bathroom electrical apparatus.
Background
Before the bathroom electrical appliances are installed, after-sale service personnel generally use special equipment or instruments to detect the mains supply condition of the bathroom of a user in advance, and some products are installed by the user or directly installed after-sale without mains supply detection.
Because the operating environment of bathroom electrical apparatus is harsh and complicated, directly using electrical apparatus can cause the potential safety hazard under the commercial power abnormal conditions such as lack of land, zero fire line connect conversely, for example because the alternating current line sequence zero fire configuration of commercial power is reverse, the numb electricity phenomenon takes place when the user that causes uses bathroom electrical apparatus, though the product still can use, but can bring very not good user experience to the injury that causes the user more easily when it takes place danger. In addition, after the user's bathroom electrical equipment is installed, when problems such as power line maintenance in midway or ground shortage caused by product failure and reverse arrangement of zero line and live line occur, the existing bathroom electrical equipment only has a leakage detection function, for example, a leakage detection device is arranged in the bathroom electrical equipment as shown in fig. 1, and a leakage LED is arranged at a place which is easy to see by the user, but such arrangement often only gives an early warning when leakage occurs, and the problem of the sequence of the alternating current line cannot be monitored, so that the user cannot detect such a fault.
SUMMERY OF THE UTILITY MODEL
In order to solve shortcoming and not enough that exist among the prior art, the utility model provides a built-in alternating current line preface detection circuitry of bathroom electrical apparatus, including singlechip, line preface detection circuitry and load control unit, line preface detection circuitry include with first detection circuitry, second detection circuitry, third detection circuitry, first detection circuitry's input and the live wire of alternating current, zero line constitute the return circuit, second detection circuitry's input and the live wire of alternating current, ground wire constitute the return circuit, and third detection circuitry's input and the zero line of alternating current, ground wire constitute the return circuit, first detection circuitry, second detection circuitry, third detection circuitry's output are connected respectively the input of singlechip, the first output of singlechip is connected load control unit.
Optionally, the first detection circuit includes an optocoupler PC1, a diode D1, a resistor R4, a resistor R7, and a resistor R10;
the anode of the diode D1 is connected with a live wire of alternating current, the cathode of the diode D1 is connected with the anode of a light emitting diode of the optocoupler PC1 after being connected with a resistor R1 in series, and the cathode of the light emitting diode of the optocoupler PC1 is connected with a zero line of alternating current;
the photoelectric conversion device is characterized in that the first input end of the single chip microcomputer is connected behind a phototriode emitter series resistor R4 of the optocoupler PC1, the switching power supply is connected behind a phototriode collector series resistor R10 of the optocoupler PC1, and the switching power supply is connected behind a first input end series resistor R7 of the single chip microcomputer.
Optionally, the second detection circuit includes an optocoupler PC2, a diode D2, a resistor R5, and a resistor R8;
the anode of the diode D2 is connected with a live wire of alternating current, the cathode of the diode D2 is connected with the anode of a light emitting diode of the optocoupler PC2 after being connected with a resistor R2 in series, and the cathode of the light emitting diode of the optocoupler PC2 is connected with a ground wire of the alternating current;
the second input end of the singlechip is connected behind the phototriode emitter series resistance R5 of the optocoupler PC2, the phototriode collector of the optocoupler PC2 is connected with the phototriode collector of the PC1, and the second input end of the singlechip is connected with the switching power supply behind the series resistance R8.
Optionally, the third detection circuit includes an optocoupler PC3, a diode D3, a resistor R6, and a resistor R9;
the anode of the diode D3 is connected with a zero line of alternating current, the cathode of the diode D3 is connected with the anode of a light emitting diode of the optocoupler PC3 after being connected with a resistor R3 in series, and the cathode of the light emitting diode of the optocoupler PC3 is connected with a ground wire of the alternating current;
the third input end of singlechip is connected behind the phototriode emitter series resistance R6 of opto-coupler PC3, the phototriode collecting electrode of opto-coupler PC3 is connected the phototriode collecting electrode of PC1, the switching power supply is connected behind the third input end series resistance R9 of singlechip.
Optionally, the ac line sequence detection circuit further includes: and the second output end of the singlechip is connected with an alarm device.
Optionally, the alarm device includes a triode, a light emitting diode and a divider resistor;
the second output end of the single chip microcomputer is connected with the base electrode of the triode, the emitting electrode of the triode is grounded, the collector electrode of the triode is connected with the negative electrode of the light-emitting diode, and the positive electrode of the light-emitting diode is connected with the switching power supply after being connected with the divider resistor in series.
Optionally, the load control unit is a multi-way switch relay, and the multi-way switch relay is used for controlling switches and loads with different functions of the bathroom electrical appliance.
Additionally, the utility model discloses the bathroom electrical apparatus that still provides, including electric leakage detection module and load, bathroom electrical apparatus is equipped with above-mentioned arbitrary technical scheme between electric leakage detection module and the load bathroom electrical apparatus built-in alternating current line sequence detection circuitry.
The utility model provides a beneficial effect that technical scheme brought is:
the utility model provides an in the bathroom electrical apparatus can be placed in to alternating current line preface detection circuitry, does not rely on the commercial power detection service of producer after-sale service, the user can monitor commercial power input's line preface characteristic at any time through the product, when taking place unusually, reminds the user to maintain.
In addition, when the line sequence of the mains supply is abnormal, a plurality of groups of reminding can be carried out through the alternating current line sequence detection circuit according to different conditions of the line sequence, and partial functional modules or all loads are cut off according to the abnormal degree of the line sequence and the functional characteristics of the bathroom electrical appliance, so that the safety and the user experience of a user are guaranteed. And because the alternating current line sequence detection circuit is arranged in the bathroom electrical appliance, when electric leakage occurs, the alternating current line sequence detection circuit can be matched with the electric leakage detection circuit for protection.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings required for the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a current leakage detection structure of a conventional bathroom appliance;
fig. 2 is a circuit diagram of an ac line sequence detection circuit built in a bathroom electrical appliance according to an embodiment of the present invention;
fig. 3 is based on the utility model discloses alternating current line sequence detection circuitry carries out the flow schematic diagram that line sequence detected and reported to the police that the embodiment provided.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.
It should be understood that, in various embodiments of the present invention, the sequence numbers of the processes do not mean the execution sequence, and the execution sequence of the processes should be determined by the functions and the internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It should be understood that in the present application, "comprising" and "having" and any variations thereof, is intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be understood that, in the present invention, "a plurality" means two or more. "and/or" is merely an association relationship describing an associated object, meaning that there may be three relationships, for example, and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "comprising a, B and C", "comprising a, B, C" means that all three of a, B, C are comprised, "comprising a, B or C" means comprising one of a, B, C, "comprising a, B and/or C" means comprising any 1 or any 2 or 3 of a, B, C.
It should be understood that, in the present invention, "B corresponding to a", "B corresponding to live line", "a corresponds to zero line", or "B corresponds to live line" means that B is associated with live line, and B can be determined according to a. Determining B from a does not mean determining B from a alone, but may be determined from a and/or other information. And the matching of A and B means that the similarity of A and B is greater than or equal to a preset threshold value.
As used herein, the term "if" may be interpreted as "at \8230; …" or "in response to a determination" or "in response to a detection" depending on the context.
The technical solution of the present invention will be described in detail with specific examples. These several specific embodiments may be combined with each other below, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Example one
This embodiment has provided a built-in alternating current line preface detection circuitry of bathroom electrical apparatus, including singlechip, line preface detection circuitry and load control unit, line preface detection circuitry include with first detection circuitry, second detection circuitry, third detection circuitry, first detection circuitry's input and the live wire of alternating current, zero line constitute the return circuit, second detection circuitry's input and the live wire of alternating current, ground wire constitute the return circuit, and third detection circuitry's input and the zero line of alternating current, ground wire constitute the return circuit, first detection circuitry, second detection circuitry, third detection circuitry's output is connected respectively the input of singlechip, the first output of singlechip is connected load control unit.
When the line sequence of the commercial power is abnormal, the alternating current line sequence detection circuit provided by the embodiment enables the display part of the bathroom electrical appliance to carry out multi-group reminding according to different conditions of the line sequence, and cuts off part or all loads according to the abnormal degree and the functional characteristics of the product, so that the safety and the user experience of users are guaranteed.
The circuit configuration and the circuit principle of the ac line sequence detection circuit will be specifically described below with reference to fig. 2.
In this embodiment, the ac power sequence detection circuit mainly detects an ac power sequence through the first detection circuit, the second detection circuit, and the third detection circuit, and the first detection circuit, the second detection circuit, and the third detection circuit have the same circuit structure. Specifically, the method comprises the following steps:
the first detection circuit comprises an optocoupler PC1, a diode D1, a resistor R4, a resistor R7 and a resistor R10; the anode of the diode D1 is connected with a live wire of alternating current, the cathode of the diode D1 is connected with the anode of a light emitting diode of the optocoupler PC1 after being connected with a resistor R1 in series, and the cathode of the light emitting diode of the optocoupler PC1 is connected with a zero line of alternating current;
the photoelectric conversion device is characterized in that the first input end of the single chip microcomputer is connected behind a phototriode emitter series resistor R4 of the optocoupler PC1, the switching power supply is connected behind a phototriode collector series resistor R10 of the optocoupler PC1, and the switching power supply is connected behind a first input end series resistor R7 of the single chip microcomputer.
The second detection circuit comprises an optocoupler PC2, a diode D2, a resistor R5 and a resistor R8;
the anode of the diode D2 is connected with a live wire of alternating current, the cathode of the diode D2 is connected with the anode of a light emitting diode of the optocoupler PC2 after being connected with a resistor R2 in series, and the cathode of the light emitting diode of the optocoupler PC2 is connected with a ground wire of alternating current;
the second input end of the singlechip is connected behind a phototriode emitter series resistor R5 of the optocoupler PC2, a phototriode collector of the optocoupler PC2 is connected with a phototriode collector of the PC1, and a switching power supply is connected behind a second input end series resistor R8 of the singlechip.
The third detection circuit comprises an optocoupler PC3, a diode D3, a resistor R6 and a resistor R9;
the anode of the diode D3 is connected with a zero line of alternating current, the cathode of the diode D3 is connected with the anode of a light emitting diode of the optocoupler PC3 after being connected with a resistor R3 in series, and the cathode of the light emitting diode of the optocoupler PC3 is connected with a ground wire of the alternating current;
the third input end of singlechip is connected behind the phototriode emitter series resistance R6 of opto-coupler PC3, the phototriode collecting electrode of opto-coupler PC3 is connected the phototriode collecting electrode of PC1, the switching power supply is connected behind the third input end series resistance R9 of singlechip.
In this embodiment, the input terminal of the switching power supply is connected to the ac power supply, and the output terminal provides the operating power supply for the ac power line sequence detection circuit.
If zero fire ground of alternating current does not have disappearance or wrong looks, then opto-coupler PC1, PC2 switch on behind diode D1, D2 respectively, and input (1) and input (2) are the high level, and opto-coupler PC3 does not switch on this moment, and input (3) are the low level. If the zero-fire ground of alternating current has no phase error, but lacks the ground, the optocoupler PC1 is conducted after passing through the diode D1, the input (1) is at a high level, the optocouplers PC2 and PC3 are not conducted, and the input (2) and the input (3) are at a low level. If the zero-fire phase dislocation of alternating current, then opto-coupler PC3 switches on behind diode D3, and input (3) are high level this moment, and opto-coupler PC1, PC2 do not switch on, and input (1) and input (2) are low level. If the alternating current is in zero-fire phase dislocation and is in a missing state, the optocouplers PC1, PC2 and PC3 are not in a conducting state, and the input (1), the input (2) and the input (3) are in low level. The single chip microcomputer judges through the level characteristics input at the three positions (1), (2) and (3), and the corresponding relation between specific line sequence detection and the level characteristics is shown in table 1.
TABLE 1
| L | N | E | Input (1) | Input (2) | Input (3) | VCC |
| √ | √ | √ | High (a) | High (a) | Is low in | Is provided with |
| √ | √ | × | High (a) | Is low with | Is low in | Is provided with |
| N | L | √ | Is low in | Is low with | Height of | Is provided with |
| N | L | × | Is low with | Is low in | Is low in | Is provided with |
In order to remind the user in time, in this embodiment, the ac power line sequence detection circuit further includes: and the second output end of the singlechip is connected with an alarm device. As shown in fig. 2, the alarm device includes a triode, a light emitting diode and a divider resistor; the second output end of the single chip microcomputer is connected with the base electrode of the triode, the emitting electrode of the triode is grounded, the collector electrode of the triode is connected with the negative electrode of the light-emitting diode, and the positive electrode of the light-emitting diode is connected with the switch power supply after being connected with the divider resistor in series.
In this embodiment, the abnormal flow is shown in fig. 3, after the bathroom electrical appliance is powered on, it is first determined whether the machine is powered on, and if not, the possible abnormal conditions are determined to include: (1) machine failure; (2) power shortage; (3) zero fire is absent. If the voltage is available, whether the level of the ports (1), (2) and (3) of the single chip microcomputer is high or low is judged, if so, the alternating current line sequence connected with the machine is considered to be normal, if not, whether the level of the ports (1), (2) and (3) of the single chip microcomputer is high or low is continuously judged, if so, the earth wire is judged to be absent, and the power supply of part or all of the I-type structure loads of the product is cut off. If not, whether the level of the ports (1), (2) and (3) of the single chip microcomputer is low or high is continuously judged, if yes, zero fire phase fault is judged, and power supply of part or all loads of the II-type structure of the product is cut off. If not, whether the level of the ports (1), (2) and (3) of the single chip microcomputer is low or not is continuously judged, if yes, the zero-fire phase fault and the ground fault are judged, the power supply of part or all of the I-type structural loads of the product is cut off, and the power supply of part or all of the II-type structural loads of the product is cut off. If a level other than the above is present, it is determined that the apparatus is defective.
In this embodiment, the class I configuration and the class II configuration of the product are determined according to different functions of different sanitary appliances. Taking an intelligent toilet as an example, the class I configuration may be a module for supporting a warm water flushing function, and the class II configuration may be a module for supporting a toilet seat heating function.
In this embodiment, the load control unit is a multi-way switch relay, the multi-way switch relay is used for controlling different function switches and loads of the sanitary and bath electrical appliance, and the different function switches are switches for cutting off loads with class I structure and class II structure.
According to the alternating current line sequence detection circuit provided by the embodiment, through the detection process, the bathroom electrical appliance has the mains supply detection function independent of the pre-sale and post-sale service of a manufacturer, a user can monitor the line sequence characteristic of the mains supply input at any time through a product, and the user is reminded to maintain when abnormality occurs.
Example two
Additionally, the utility model also provides a bathroom electrical apparatus, including leakage detection module and load, be equipped with the built-in alternating current line sequence detection circuitry of bathroom electrical apparatus that above-mentioned embodiment disclosed between leakage detection module and the load.
In this embodiment, as can be seen from fig. 2, the single chip microcomputer in the ac line sequence detection circuit is further provided with a fourth input end, and the fourth input end is connected to the leakage detection module, so that when leakage occurs, the leakage detection circuit can be used for protection. Specifically, when electric leakage occurs, the electric leakage detection module sends an electric leakage signal to the single chip microcomputer through the fourth input end, the single chip microcomputer controls the load control unit to cut off the power supply of the whole load of the bathroom electrical appliance, and meanwhile, an LED in the alarm device is constantly on to give an alarm.
The sequence numbers in the above embodiments are merely for description, and do not represent the sequence of the assembly or the use of the components.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. The utility model provides a built-in alternating current line preface detection circuitry of bathroom electrical apparatus, its characterized in that, includes singlechip, line preface detection circuitry and load control unit, line preface detection circuitry include with first detection circuitry, second detection circuitry, third detection circuitry, first detection circuitry's input and the live wire of alternating current, zero line constitution return circuit, second detection circuitry's input and the live wire of alternating current, ground wire constitution return circuit, third detection circuitry's input and the zero line of alternating current, ground wire constitution return circuit, first detection circuitry, second detection circuitry, third detection circuitry's output is connected respectively the input of singlechip, the first output of singlechip is connected load control unit.
2. The built-in alternating current line sequence detection circuit of the bathroom electrical appliance according to claim 1, wherein the first detection circuit comprises an optical coupler PC1, a diode D1, a resistor R4, a resistor R7 and a resistor R10;
the anode of the diode D1 is connected with a live wire of alternating current, the cathode of the diode D1 is connected with the anode of a light emitting diode of the optocoupler PC1 after being connected with a resistor R1 in series, and the cathode of the light emitting diode of the optocoupler PC1 is connected with a zero line of alternating current;
the light-sensitive triode emitter series resistance R4 of the optocoupler PC1 is connected with the first input end of the single chip microcomputer, the light-sensitive triode collector series resistance R10 of the optocoupler PC1 is connected with the switching power supply, and the first input end of the single chip microcomputer is connected with the switching power supply in series resistance R7.
3. The built-in alternating current line sequence detection circuit of the bathroom electrical appliance according to claim 2, wherein the second detection circuit comprises an optical coupler PC2, a diode D2, a resistor R5 and a resistor R8;
the anode of the diode D2 is connected with a live wire of alternating current, the cathode of the diode D2 is connected with the anode of a light emitting diode of the optocoupler PC2 after being connected with a resistor R2 in series, and the cathode of the light emitting diode of the optocoupler PC2 is connected with a ground wire of alternating current;
the second input end of the singlechip is connected behind the phototriode emitter series resistance R5 of the optocoupler PC2, the phototriode collector of the optocoupler PC2 is connected with the phototriode collector of the PC1, and the second input end of the singlechip is connected with the switching power supply behind the series resistance R8.
4. The built-in alternating current line sequence detection circuit of the bathroom electrical appliance according to claim 2, wherein the third detection circuit comprises an optical coupler PC3, a diode D3, a resistor R6 and a resistor R9;
the anode of the diode D3 is connected with a zero line of alternating current, the cathode of the diode D3 is connected with the anode of a light emitting diode of the optocoupler PC3 after being connected with a resistor R3 in series, and the cathode of the light emitting diode of the optocoupler PC3 is connected with a ground wire of alternating current;
the third input end of singlechip is connected behind the phototriode emitter series resistance R6 of opto-coupler PC3, the phototriode collecting electrode of opto-coupler PC3 is connected the phototriode collecting electrode of PC1, the switching power supply is connected behind the third input end series resistance R9 of singlechip.
5. The built-in alternating current line sequence detection circuit of the sanitary ware according to claim 1, wherein the alternating current line sequence detection circuit further comprises: and the second output end of the singlechip is connected with an alarm device.
6. The circuit for detecting the built-in alternating current wire sequence of the sanitary ware according to claim 5, wherein the alarm device comprises a triode, a light emitting diode and a divider resistor;
the second output end of the single chip microcomputer is connected with the base electrode of the triode, the emitting electrode of the triode is grounded, the collector electrode of the triode is connected with the negative electrode of the light-emitting diode, and the positive electrode of the light-emitting diode is connected with the switching power supply after being connected with the divider resistor in series.
7. The circuit of claim 1, wherein the load control unit is a multi-way switch relay for controlling different switches and loads of the sanitary appliance.
8. A sanitary electric appliance, comprising a leakage detection module and a load, wherein the built-in AC line sequence detection circuit of any one of claims 1 to 7 is arranged between the leakage detection module and the load.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220762229.9U CN217766794U (en) | 2022-04-02 | 2022-04-02 | Built-in alternating current line sequence detection circuit of bathroom electrical apparatus and bathroom electrical apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220762229.9U CN217766794U (en) | 2022-04-02 | 2022-04-02 | Built-in alternating current line sequence detection circuit of bathroom electrical apparatus and bathroom electrical apparatus |
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| CN217766794U true CN217766794U (en) | 2022-11-08 |
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| CN202220762229.9U Active CN217766794U (en) | 2022-04-02 | 2022-04-02 | Built-in alternating current line sequence detection circuit of bathroom electrical apparatus and bathroom electrical apparatus |
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