CN207611111U - A kind of washing machine L and the reversed detection circuit of N lines - Google Patents
A kind of washing machine L and the reversed detection circuit of N lines Download PDFInfo
- Publication number
- CN207611111U CN207611111U CN201721721124.4U CN201721721124U CN207611111U CN 207611111 U CN207611111 U CN 207611111U CN 201721721124 U CN201721721124 U CN 201721721124U CN 207611111 U CN207611111 U CN 207611111U
- Authority
- CN
- China
- Prior art keywords
- diode
- conducting wire
- connect
- washing machine
- current
- 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
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Fire Alarms (AREA)
Abstract
It is disclosed by the utility model to belong to washing machine circuit detection technique field,Specially a kind of washing machine L and the reversed detection circuit of N lines,Including firewire binding post L,Zero curve post head N,First diode,Current limiter,Second diode,Third diode,4th diode,Electric wire connecting junction,Current sampler,Ground wire and MCU processor,The firewire binding post L by the anode of conducting wire and the first diode connect,The cathode of first diode is connect by conducting wire with current limiter,The current limiter is connect by conducting wire with the anode of the second diode,The cathode of second diode is connect by conducting wire with the anode of third diode,Washing machine L and the reversed detection circuit of N lines,Use conventional diode,Photoelectrical coupler,The devices such as resistance are constituted,It is of low cost,Convenient for promoting,This programme circuit design is simple,Use device mature and reliable,It is insensitive to the fluctuation of power grid,The range for detecting voltage is big.
Description
Technical field
The utility model is related to washing machine circuit detection technique field, specially a kind of washing machine L and the reversed detection electricity of N lines
Road.
Background technology
Household electrical appliance washing machine product is three-prong plug at present, including L, N and the earth.Many domestic consumer generally existing L,
N zero curves and firewire do not distinguish, and ground wire does not connect phenomenon.Washing machine manufacturing enterprise is also unaware that the problem, or recognizes this
Problem does not take corresponding measure.L, N fire zero curve can cause many problems, washing machine to pass through in design regardless of this connection
Cut off firewire control load；After L, N reversal connection, though washing machine does not work, actual loading connects L firewires and carries empty electricity for a long time, past
Toward the security risks such as very big fire or electric shock are caused, for this purpose, we have proposed a kind of washing machine L and the reversed detection circuit of N lines.
Utility model content
The purpose of this utility model is to provide a kind of washing machine L and the reversed detection circuit of N lines, to solve above-mentioned background skill
After the L proposed in art, N reversal connection, though washing machine does not work, actual loading connects L firewires with empty electricity for a long time, often results in pole
The problem of security risks such as conflagration or electric shock.
To achieve the above object, the utility model provides the following technical solutions：A kind of washing machine L and the reversed detection of N lines are electric
Road, including firewire binding post L, zero curve post head N, the first diode, current limiter, the second diode, third diode, the four or two
Pole pipe, electric wire connecting junction, current sampler, ground wire and MCU processor, the firewire binding post L by conducting wire and the one or two pole
The anode connection of pipe, the cathode of first diode connect by conducting wire with current limiter, and the current limiter passes through conducting wire and the
The anode connection of two diodes, the cathode of second diode are connect by conducting wire and the positive of third diode, and described the
The cathode of three diodes is connect by conducting wire with electric wire connecting junction, and the electric wire connecting junction is connect by conducting wire with zero curve post head N, described to connect
The right side binding post of line device is connect by conducting wire with zero curve post head N, the 4th diode anode by conducting wire with connect
Line device connects, and the cathode of the 4th diode is connect by the anode of conducting wire and the second diode, the 4th diode and
Current sampler is in parallel, and ground connection binding post and the ground wire of the current sampler connect, and the data of the current sampler connect
Mouth passes through data line and the input port of MCU processor connects.
Preferably, the voltage between the zero curve post head N and firewire binding post L is 220V.
Preferably, the current limiter is current-limiting resistance or limiting capacitor.
Preferably, the output end of the MCU processor also connects indicating equipment by conducting wire.
Compared with prior art, the utility model has the beneficial effects that：Washing machine L and the reversed detection circuit of N lines, use
Conventional diode, photoelectrical coupler, the devices such as resistance are constituted, of low cost, and convenient for promoting, this programme circuit design is simple, makes
Insensitive to the fluctuation of power grid with device mature and reliable, the range for detecting voltage is big.
Description of the drawings
Fig. 1 is the utility model circuit diagram.
In figure：1 firewire binding post L, 2 zero curve post head Ns, 3 first diodes, 4 current limiters, 5 second diodes, 6 thirds
Diode, 7 the 4th diodes, 8 electric wire connecting junctions, 9 current samplers, 10 ground wires, 11MCU processors.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of technical solution：A kind of washing machine L and the reversed detection circuit of N lines, packet
Include firewire binding post L1, zero curve post head N 2, the first diode 3, current limiter 4, the second diode 5, third diode the 6, the 4th
Diode 7, electric wire connecting junction 8, current sampler 9, ground wire 10 and MCU processor 11, firewire binding post L1 by conducting wire and the
The anode connection of one diode 3, the cathode of the first diode 3 connect by conducting wire with current limiter 4, current limiter 4 by conducting wire and
The cathode of the anode connection of second diode 5, the second diode 5 is connect by conducting wire with the anode of third diode 6, and the three or two
The cathode of pole pipe 6 is connect by conducting wire with electric wire connecting junction 8, and electric wire connecting junction 8 is connect by conducting wire with zero curve post head N 2, electric wire connecting junction 8
Right side binding post is connect by conducting wire with zero curve post head N 2, the anode of the 4th diode 7 by conducting wire and electric wire connecting junction 8 connect
It connects, the cathode of the 4th diode 7 is connect by conducting wire with the anode of the second diode 5, the 4th diode 7 and current sampler 9
Parallel connection, the ground connection binding post of current sampler 9 connects with ground wire 10, the data-interface of current sampler 9 by data line and
The input port of MCU processor 11 connects.
Wherein, the voltage between zero curve post head N 2 and firewire binding post L1 be 220V, current limiter 4 be current-limiting resistance or
The output end of limiting capacitor, MCU processor 11 also connects indicating equipment by conducting wire.
Operation principle：Current limiting device 4 is to be no more than its rated value for 9 maximum operating currenbt of protective current sampler, is risen
Can be resistance device to decompression metering function, can also be capacitance etc. can play decompression metering function electronic component,
Current sampler 9 generally refers to isolated form photoelectrical coupler, and diode refers to having unidirectionally be powered and cannot reversely be powered
Electrical equipment, work as L, when the N orders of connection are correct, there is electric current to be flowed through from current sampler 9, current sampler 9 will sense
Electric current be converted into current sampler 9 secondary signal be connected, then the signal is switched into switching signal and is sent at MCU processor 10
Reason, by processing, it can be determined that L, N phase are correct.
L, N reversal connection, current sampler 9 can not just sense current signal, to which MCU processor 10 judges L, the shape of N
Reversed when state, MCU processor 10 is reminded by controlling indicating equipment warning.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of washing machine L and the reversed detection circuit of N lines, including firewire binding post L (1), zero curve post head N (2), the one or two pole
Manage (3), current limiter (4), the second diode (5), third diode (6), the 4th diode (7), electric wire connecting junction (8), current sample
Device (9), ground wire (10) and MCU processor (11), it is characterised in that：The firewire binding post L (1) by conducting wire and first
The anode connection of diode (3), the cathode of first diode (3) are connect by conducting wire with current limiter (4), the current limiter
(4) it is connect with the anode of the second diode (5) by conducting wire, the cathode of second diode (5) passes through conducting wire and the three or two
The anode connection of pole pipe (6), the cathode of the third diode (6) are connect by conducting wire with electric wire connecting junction (8), the electric wire connecting junction
(8) it is connect with zero curve post head N (2) by conducting wire, the right side binding post of the electric wire connecting junction (8) passes through conducting wire and zero curve binding post
N (2) connections, the 4th diode (7) anode by conducting wire connect with electric wire connecting junction (8), the 4th diode (7)
Cathode is connect by conducting wire with the anode of the second diode (5), and the 4th diode (7) is in parallel with current sampler (9), institute
The ground connection binding post for stating current sampler (9) is connect with ground wire (10), and the data-interface of the current sampler (9) passes through number
It is connect with the input port of MCU processor (11) according to line.
2. a kind of washing machine L according to claim 1 and the reversed detection circuit of N lines, it is characterised in that：The zero curve wiring
Voltage between column N (2) and firewire binding post L (1) is 220V.
3. a kind of washing machine L according to claim 1 and the reversed detection circuit of N lines, it is characterised in that：The current limiter
(4) it is current-limiting resistance or limiting capacitor.
4. a kind of washing machine L according to claim 1 and the reversed detection circuit of N lines, it is characterised in that：The MCU processing
The output end of device (11) also connects indicating equipment by conducting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721721124.4U CN207611111U (en) | 2017-12-12 | 2017-12-12 | A kind of washing machine L and the reversed detection circuit of N lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721721124.4U CN207611111U (en) | 2017-12-12 | 2017-12-12 | A kind of washing machine L and the reversed detection circuit of N lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207611111U true CN207611111U (en) | 2018-07-13 |
Family
ID=62798118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721721124.4U Active CN207611111U (en) | 2017-12-12 | 2017-12-12 | A kind of washing machine L and the reversed detection circuit of N lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207611111U (en) |
-
2017
- 2017-12-12 CN CN201721721124.4U patent/CN207611111U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202275129U (en) | On/off detection circuit for relay of smart electricity meter | |
| CN202583311U (en) | Alternating current zero-crossing detection circuit | |
| CN201697990U (en) | Detecting circuit for power transmission and failure states of electric energy meter | |
| CN203811727U (en) | Device for detecting commercial power | |
| CN204391741U (en) | Surge protection circuit | |
| CN204177901U (en) | A kind of intelligent traffic signal machine failure detector circuit | |
| CN203299266U (en) | Micro programming load recognizer | |
| CN207611111U (en) | A kind of washing machine L and the reversed detection circuit of N lines | |
| CN102749502A (en) | Double-current comparison circuit for electric energy metering chip | |
| CN204287447U (en) | A kind of alternating current-direct current input detecting circuit | |
| CN203572900U (en) | Broken line detection circuit for state grid special transformer collection terminal control circuit | |
| CN206685891U (en) | Current limliting earth leakage protective device | |
| CN206727643U (en) | A kind of under-voltage and overvoltage crowbar | |
| CN105182063A (en) | Single-phase electric energy meter, maximum current continuous monitoring method and current variation monitoring method | |
| CN202708270U (en) | Electromagnetic valve control circuit | |
| CN206908585U (en) | A kind of protection circuit | |
| CN105137140A (en) | Single-phase electronic electric energy meter capable of preventing electric quantity from flying away | |
| CN205786799U (en) | The voltage detecting circuit of Dual-power switch controller | |
| CN203631410U (en) | Vacuum circuit breaker controlling circuit and vacuum circuit breaker controlling system | |
| CN204346539U (en) | There is water level detection circuit and the cooking apparatus of self-checking function | |
| CN204302368U (en) | Over-current detection circuit and overcurrent detecting device | |
| CN103245836A (en) | Novel intelligent tramegger with self-discharge function | |
| CN103681094B (en) | A kind of vacuum circuit breaker control circuit and system | |
| CN203114688U (en) | Draught fan operating circuit with intelligent fault diagnosis function | |
| CN207832988U (en) | A kind of Three phase power phase shortage reverse phase detection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 215000 No. 111 Kangyuan Road, Xiangcheng Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: Jiangsu Xin'an Electrical Appliance Co., Ltd. Address before: 215100 No. 111 Kangyuan Road, Xiangcheng Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: Jiangsu Simand Electrical Appliance Co., Ltd. |
|
| CP03 | Change of name, title or address |