CN202034633U - Wire holder used for automatically managing household electronic product and electric appliance with computer - Google Patents
Wire holder used for automatically managing household electronic product and electric appliance with computer Download PDFInfo
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- CN202034633U CN202034633U CN2011200508345U CN201120050834U CN202034633U CN 202034633 U CN202034633 U CN 202034633U CN 2011200508345 U CN2011200508345 U CN 2011200508345U CN 201120050834 U CN201120050834 U CN 201120050834U CN 202034633 U CN202034633 U CN 202034633U
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Abstract
A wire holder used for automatically managing household electronic products and electric appliances with a computer is provided, a first pin CD, a sixth pin DSR, an eighth pin CTS, and a ninth pin RI of an RS232C interface are respectively connected with the output anode of a stabilized power supply circuit through pull-up resistors, and four pairs of sensor interface terminals are formed by the four pins and the output cathode of the stabilized power supply circuit. The fourth pin DTR, the seventh pin RTS of the RS232C are respectively connected with the signal input end of a first road alternating current electronic switching circuit and the signal input end of a first weak current electronic switching circuit through isolating diodes. The alternating input end of the stabilized power supply circuit is connected with a lightening proof and surging circuit in parallel, and connected with the commercial power through a commercial power line or a plug of the commercial power line, and the output cathode of the stabilized power supply circuit is connected with the fifth pin GND of the RS 232C. As an interface between the computer and the household electronic products and electric appliances, the wire holder can be used to cooperate with various types of sensors under the management of the computer, is beneficial for detecting and automatically operating the connected household electronic products or electric appliances, can also be used independently, is easy to manufacture, and is low in cost.
Description
Technical field
The utility model belongs to the application electric technology field, particularly relates to a kind of computer of domestic electronic and electrical automation and interface arrangement of household electrical appliances realized.
Background technology
Home automation is one of magnificent chapter that makes us longing in reform and opening-up university, master and the doctor's English teaching material later on over the years.House intelligentized system comes across twentieth century seventies, the mid-80 the household intelligent control machine occurred on the American-European market, first intelligent building also builds up in the U.S. in January, 1984 and comes into operation, 1998 at U.S.'s network home appliance that has been born, classical " intelligent family " model system is for example: " House of the Future " house intelligentized system of holding in Singapore in 1998, Longworks " networked family " demo system that Echelon company releases.
Home automation is one of inevitable outcome of Information Technology Development, this sets something afoot in the invention of first semiconductor diode in 1948, transistor circuit, integrated circuit epoch have been experienced, therefore, computer and technology thereof develop rapidly, human society enters the information age from the electric power equipment epoch thereupon, is carrying out the deeply change of soul.So-called home automation comprises the automatic operating of various electronics and electrical equipment, the civil power or the dry cell class low-voltage dc power supply that between the two can be 220 volts according to the power supply of its work carry out rough division, the implication of its automatic operating comprises: 1) automation control household electrical appliances, promptly follow one's bent convenient the use; 2) automation detects the situation of household electrical appliances, accomplishes to control the diagnosis of optimization and real time fail, guarantees the fail safe that electrical equipment uses, and improves its working life, reduces the electromagnetic noise of environment.At present, classical electronic technology means has: radio wave, infrared ray, ultrasonic wave, radio frequency (RF), bluetooth (Bluetooth) remote control, computer control, telephone line network (HomePAN), power transmission line (network), Internet, GPS (global positioning system) Long-distance Control and the control of time relay incident etc., they have established solid material base for automation appliance.
Domestic research for automation appliance has also obtained progress, and the quantity that is published in the technical article of various periodicals and magazines is enough to show this conclusion.With " household electrical appliance " is term, also can find several pieces in rich Master's thesis storehouse.For example: the master thesis of Qufu Normal University " research of the remote intelligent control system of household electrical appliance " is all attempted to carry out the household electrical appliances Long-distance Control by means of telephone wire or power line network with the master thesis " the telephone remote controls of household electrical appliance " of Shandong University, the master thesis of Hohai University " the networking control of household electrical appliance and the realization of intelligent multifunctional microwave oven " has proposed a kind of automatic weighing rice, wash the microwave oven scheme of rice and optimization cooking rice, the master thesis of Chinese Marine University " Study of recognition of voice in the household electrical appliance " has been studied the problem according to the voice operating household electrical appliances.Computer and technology thereof are popularized, and the automation appliance control product of control of corresponding calculated machine or computer network control ought to follow a well mapped-out plan, and still, was difficult to find the trace of Related product.A product is sold and announced in " electronic circuit " website: " PC serial ports controller/computer control switch: CTL-8MR ", its working power is: DC 12V/24V, load capacity is: 30V/5A, 250V/5A, host computer are computer, adopt Visual Basic programming, slave computer i.e. this product has adopted single-chip microcomputer, the programming of use assembler language, PC (PC) can control switching on and off of 8 external equipments based on its RS232 interface and software by this controller; Its weak point is, lacks the input channel of signal, can not carry out the condition detection of household electrical appliances.Wherein recommendable product is the commercially available time relay, they and the electric industry of staying out are sold, but belong to automation control electronic product, comprise and adopt single-chip microcomputer, electronic technology or the mechanical time relay, general design has one to two pair of forceful electric power output switch, can bear the main task of automation appliance, promptly can or close household electrical appliance according to the predetermined time schedule time opening, price also is low to moderate below hundred yuan, its shortcoming is, function singleness can not be finished automatic monitoring man electricity condition, adjust the task of working procedure automatically.
The utility model content
The utility model aims to provide a kind of junction block that computer is managed home electronic appliance automatically that is used for, automatically detect the respective conditions of external environment condition according to preset condition, automatically two pairs of domestic electronics of operation or two pairs of electrical equipment are adjusted working procedure automatically, also can independently use.
The technical solution of the utility model is: be used for the junction block that computer is managed home electronic appliance automatically, the first pin CD of its RS232C interface, the 6th pin DSR, the 8th pin CTS and nine kinds of needles RI are connected to the output cathode of voltage-stabilized power supply circuit respectively by a pull-up resistor, this four pin constitutes the terminals of 4 pairs of sensor interfaces respectively with the output negative pole of power circuit, the 4th pin DTR of RS232C interface, the 7th pin RTS is connected to the signal input part of No. 1 alternating current electronic switching circuit and 1 road light current electronic switching circuit separately by an isolating diode, the ac input end of voltage-stabilized power supply circuit is with anti-lightning strike in parallel with the surge circuit, receive civil power by supply main and plug thereof, the output negative pole of power circuit links to each other with the 5th pin GND of RS232C interface.
Described alternating current electronic switching circuit comprises 1 NPN triode, 1 PNP triode, 1 base resistance, 1 base biasing resistor, 1 collector resistance, 1 current limliting collector resistance and a solid-state relay; The base stage of one termination NPN triode of described base resistance, the other end is as the signal input part of this electronic switching circuit, described base biasing resistor is connected in parallel on the emitter junction of described PNP triode, the emitter of this PNP triode connects the output cathode of voltage-stabilized power supply circuit, collector resistance of its base stage series connection is connected to the collector electrode of described NPN triode, the emitter of NPN triode is connected to the negative pole of voltage-stabilized power supply circuit, the collector electrode of the PNP triode described collector resistance of connecting is connected to the positive pole of the signal input end of described solid-state relay, and the negative pole of the signal input end of solid-state relay connects the negative pole of voltage-stabilized power supply circuit; Two outputs of described solid-state relay constitute the output of alternating current electronic switching circuit.
Described light current electronic switching circuit comprises a triode and base resistance, a diode, a light-emitting diode and a single-pole double throw direct current electromagnetic relay; The base stage of one termination triode of described base resistance, the other end is as the signal input part of this electronic switching circuit, the emitter of described triode is connected to the negative pole of voltage-stabilized power supply circuit, its collector electrode is connected to the negative pole of described light-emitting diode, the positive pole of light-emitting diode is connected respectively to an end of the coil of the positive pole of described diode and described direct current relay, the other end of the coil of the negative pole of diode and single-pole double throw direct current electromagnetic relay all is connected to the output cathode of voltage-stabilized power supply circuit, and six terminals of two pairs of single-pole double-throw switch (SPDT)s of described single-pole double throw direct current electromagnetic relay constitute the output of light current electronic switching circuit.
Describedly be used for the junction block that computer is managed home electronic appliance automatically, comprise current limliting isolation resistance, switch and isolation diode in the circuit, one end of described current limliting isolation resistance connects an end of switch, the other end connects the output cathode of voltage-stabilized power supply circuit, the other end of described switch connects the positive pole of diode, and draw 1 pairs of posts from the two ends of switch, sensor terminals when constituting independent the use, the negative pole of described isolation diode connects the signal input part of described alternating current electronic circuit and light current electronic switching circuit.
It is in parallel with the corresponding signal input of USB interface that described RS232C interface changes the serial port circuit by USB.
Described voltage-stabilized power supply circuit is made up of power transformer, diode bridge alternating current circuit, capacitor filter and circuit of three-terminal voltage-stabilizing integrated 7808.
Described anti-lightning strike and surge circuit is composed in series by a fuse and a piezo-resistance.
The utility model has constituted the interface between computer and the home electronic appliance, its advantage is, 1) under the management of computer software, can cooperate multiclass sensor work, comprise: output signal be switching mode ,+3V～+ the level type of 15V or the transducer of pulse signal type or resistance saltus step type, help detecting and the domestic electronic or the household electrical appliance that are connected of operation automatically; The combination of transducer and household electrical appliances is adapted to multiple occasion; 2) can independently use,, or when not inserting computer, can be converted into common supply socket without the i.e. automation appliance management software that disposed of operation of computer; Perhaps, output variable be switching mode or+3V～+ level type (non-pulse signal type) transducer of 15V is parallel on the binding post that the switch ends from " the common power socket circuit is changeed in computer management " draws, and can implement the automatic operating that transducer is directly controlled household electrical appliances; 4) it is simple for production, economical, easy-to-use, safety.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Among the figure: 1-single-pole double throw direct current electromagnetic relay, the 2-solid-state relay, 3-single-pole double throw direct current electromagnetic relay, the 4-solid-state relay, the 5-voltage-stabilized power supply circuit, the anti-lightning strike and surge circuit of 51-, the 6-USB interface, 7-USB changes serial port circuit, 8-RS232C interface.
Embodiment
As shown in Figure 1, the utility model is used for the junction block that computer is managed home electronic appliance automatically, the first pin CD of its RS232C interface 8, the 6th pin DSR, the 8th pin CTS and nine kinds of needles RI are respectively by a pull-up resistor R1, R2, R3, R4 is connected to the output cathode of voltage-stabilized power supply circuit, this four pin constitutes 4 couples of transducer Rs1 with the output negative pole of power circuit respectively, Rs2, Rs3, the terminals of Rs4 interface, the 4th pin DTR of RS232C interface 8, the 7th pin RTS is separately by an isolating diode D3, D4 is connected to the signal input part of No. 1 alternating current electronic switching circuit and 1 road light current electronic switching circuit, the ac input end of voltage-stabilized power supply circuit 5 is with anti-lightning strike in parallel with surge circuit 51, receive civil power by supply main and plug thereof, the output negative pole of power circuit links to each other with the 5th pin GND of RS232C interface 8.
Described alternating current electronic switching circuit comprises 1 NPN triode, 1 PNP triode, 1 base resistance, 1 base biasing resistor, 1 collector resistance, 1 current limliting collector resistance and a solid-state relay; The base stage of one termination NPN triode of described base resistance, the other end is as the signal input part of this electronic switching circuit, described base biasing resistor is connected in parallel on the emitter junction of described PNP triode, the emitter of this PNP triode connects the output cathode of voltage-stabilized power supply circuit, collector resistance of its base stage series connection is connected to the collector electrode of described NPN triode, the emitter of NPN triode is connected to the negative pole of voltage-stabilized power supply circuit, the collector electrode of the PNP triode described collector resistance of connecting is connected to the positive pole of the signal input end of described solid- state relay 2 or 4, and the negative pole of solid- state relay 2 or 4 signal input end connects the negative pole of voltage-stabilized power supply circuit; Described solid-state relay 2 or two outputs of 4 constitute the output of alternating current electronic switching circuits.
Described light current electronic switching circuit comprises a triode and base resistance, a diode, a light-emitting diode and a single-pole double throw direct current electromagnetic relay; The base stage of one termination triode of described base resistance, the other end is as the signal input part of this electronic switching circuit, the emitter of described triode is connected to the negative pole of voltage-stabilized power supply circuit, its collector electrode is connected to the negative pole of described light-emitting diode, the positive pole of light-emitting diode is connected respectively to an end of the coil of the positive pole of described diode and described direct current relay, the coil other end of the negative pole of diode and single-pole double throw direct current electromagnetic relay 1 or 3 all is connected to the output cathode of voltage-stabilized power supply circuit, and six terminals of described single-pole double throw direct current electromagnetic relay 1 or two pairs of single-pole double-throw switch (SPDT)s of 3 constitute the output of light current electronic switching circuits.
Further, describedly be used for the junction block that computer is managed home electronic appliance automatically, comprise current limliting isolation resistance, switch and isolation diode in the circuit, one end of described current limliting isolation resistance connects an end of switch, the other end connects the output cathode of voltage-stabilized power supply circuit, the other end of described switch connects the positive pole of diode, and draw 1 pairs of posts from the two ends of switch, sensor terminals when constituting independent the use, the negative pole of described isolation diode connects the signal input part of described alternating current electronic circuit and light current electronic switching circuit.
Further, described RS232C interface 8 is in parallel with the corresponding signal input of USB interface 6 by USB commentaries on classics serial port circuit 7.
Described voltage-stabilized power supply circuit 5 is made up of power transformer, diode bridge alternating current circuit, capacitor filter and circuit of three-terminal voltage-stabilizing integrated 7808.
Described anti-lightning strike and surge circuit 51 is composed in series by a fuse and a piezo-resistance.
The utility model also comprises working station indicator LED1 and LED2.
The key property of the RS232C interface of computer is (referring to " utilizing Visual Basic to realize the serial parallel communication technology "): signal transmission form is unidirectional (Single-Ended), full duplex point-to-point transmission pattern, transmission range can reach 15 meters, its transmission rate can reach 19200baud, corresponding level+the 3V of logic O～+ 15V, corresponding level-the 3V of logical one～(15) V, output current 20mA, can come input sensor signal by the event attribute of serial communication control MSComm32.OCX:
1ComEvSend: the number of characters in the transmission register also lacks than Sthreshold;
2ComEv Receive: receive Sthreshold character, this incident continues to produce up to removing from receiving register with the Input attribute;
The state of 3ComEvCTS:Clear_to_Send line changes;
The state of 4ComEvDSR:Data_Set_Ready line changes to 0 from 1;
The state of 5ComEvCD:Carrier_Detect line changes;
6ComEvRing: detect bell signal, some UART (asynchronous reception-transmitter) may not support this incident;
7ComEvEOF: receive the end of data (ASCII is 26) character.
According to the above, adopt pull-up resistor R1, R2, R3, R4 and Rs1, Rs2, Rs3, the mode of Rs4 ground connection has constituted the interface circuit of transducer.As seen from Figure 1, this interface circuit can cooperate multiclass sensor work, comprising: output signal be switching mode ,+3V～+ the level type of 15V or the transducer of pulse signal type or resistance saltus step type.Pull-up resistor is generally got 10K Ω, and it calculates principle can be referring to " opener electrode export structure " in " detailed annotation of 51 a single-chip microcomputer application examples " joint.As at transducer Rs1, Rs2, Rs3 arranges the photoelectricity coupling circuit to make electrical isolation and can prevent hindering and damaging of hard pulse such as thunder and lightning between Rs4 and the RS232C interface 8.In order to take precautions against the thunderbolt or the destruction of surge current, be parallel with anti-lightning strike and surge circuit 51 at the input of civil power, wherein, the computational methods of the pressure sensitive voltage of piezo-resistance are: V1mA=1.5V
P=1.5 * 220V=476V, V1mA=2.2VAC=2.2 * 220V=484V, so the puncture voltage of piezo-resistance is selected 470-480V, its discharge capacity selects 2-20KA; The specification of fuse is looked the rated operational current of solid- state relay 2 and 4 and is determined.
Among Fig. 1, the interconnection RTS that shakes hands of RS232C interface 8, DTR is the output signal of computer, as the control signal wire of electronic apparatus; Diode D3; D4 is used for the serial port and the management of 2 sets of computer of isolation computer changes the common power socket circuit, enables not to be mutually exclusive, simultaneously; also avoid alternating current, the contingent feedback pulse of light current electronic switching circuit of back, protected computer.If control MSComm32.OCX is set, and to go up its attribute of two effective, that is: MSComm.RTSEnable=true or MSComm.DTREnable=true the time, in case this serial port is opened, Request_to_Send line or Data_Ter min al_Ready line will be configured to high potential (+3V～+ 15V), and be closed when the connectivity port, or its two one-tenth electronegative potential (0V or-3V～(15) V) when being set, MSComm.RTSEnable=false, MSComm.DTREnable=false will be set.
Some notebook has been abandoned the RS232C interface now, for guaranteeing use of the present utility model, has designed USB among Fig. 1 and has changeed serial port circuit 7.This circuit can adopt ooze " USB changes serial port chip, and it is infrared that USB changes IrDA, and USB changes LPT " chip CH340 of permanent Electronics Co., Ltd. of Nanjing to finish.The signal transmission form of USB is similar to RS-485, adopts the signal transmission of differential type, has strengthened the resistivity to noise, and its transmission speed reaches 120Mbps～240Mbps.
+ 5V direct current electromagnetic relay 1 and 3 has all adopted the transistor switching circuit driving.During work, the base current of triode is much smaller than 1mA, though and the collector current of relay or triode is up to 35mA, but this obtains from+8V voltage-stabilized power supply circuit (5), two LED1, the LED2 relay indicating light is series at transistorized collector circuit, therefore, this light current electronic switching circuit is to the interconnection RTS that shakes hands of RS232C interface, and the driving force of DTR consumes minimum.
Solid-state relay SSR2 and 4 characteristics are: with low driving DC voltage and the little big load of drive current control, compare and exchange or direct current electromagnetic relay, have reliable operation, life-span length, no-spark, antijamming capability is strong, switching speed is fast advantage.For example the input control voltage of the JGX-10F solid-state relay of Beijing section energising electric relay head factory production is DC3.2～14V, the representative value of input current is 5～20mA (VDC=5V), the interconnection RTS that shakes hands with the RS232C interface, the driving force of DTR is that output current 20mA is suitable, and its rated output voltage is AC25～250V, output-current rating is 10A, is enough to drive 1 air-conditioning.
Applicating example of the present utility model is as follows.Two groups of single-pole double-throw switch (SPDT) KT1 of the single-pole double throw direct current electromagnetic relay 1 among Fig. 1 are replaced the hook switch of telephone set, solid-state relay SSR2 connects an illuminating lamp to civil power, one group among the single-pole double-throw switch (SPDT) KQ1 of single-pole double throw direct current electromagnetic relay 3 redialing switch that is parallel to telephone set, transducer Rs1, Rs2, Rs3, Rs4 selects transducers such as 1～4 infrared two mirror of microwave or infrared correlation for use, just can implement the home security telephone remote reports to the police, and the zone and the time of the generation of record incident, light illuminating lamp during warning.If this computer is mixed camera, or further, network in the connection can also be monitored shooting, network alarming in real time.
If transducer Rs1, Rs2 selects coal gas and Smoke Sensor respectively for use, transducer Rs3 selects temperature sensor for use, transducer Rs4 selects photo resistance for use, the KT1 of single-pole double throw direct current electromagnetic relay 1 inserts an illuminating lamp or ventilating fan or smoke exhaust ventilator to civil power, solid-state relay SSR2 connects an electric cooker to civil power, one group among the single-pole double-throw switch (SPDT) KQ1 of single-pole double throw direct current electromagnetic relay 3 is parallel to certain warning or linkage, solid-state relay SSR4 connects air-conditioning, so, can begin to cook in good time, in good time or thermophilic open or close air-conditioning, run into and open ventilating fan or smoke exhaust ventilator when oil smoke takes place automatically, when dispersing oil smoke till, start when running into gas leak and report to the police or linkage, enable illuminating lamp when the sky grows dark automatically.
In the use, an end of the present utility model connects the USB or the RS232C interface of computer by cable, the other end inserts corresponding socket to electrical equipment by the commercial power socket on the power line insertion wall as the power patch panel of family use at ordinary times, and transducer then connects by binding post.To the unfamiliar people of transducer, the scheme program that can move computer just can managing electronic or the operation of electrical equipment.
Without the i.e. automation appliance management software that disposed of operation of computer, or when not inserting computer, the interconnection RTS that shakes hands of RS232C interface, DTR are configured to electronegative potential (0V or-3V～(15) V).Press the switch S 1 in " the common power socket circuit is changeed in computer management " on the panel, S2 just can be used as common supply socket to it and use.Perhaps, the output variable of selecting for use be switching mode or+3V～+ a pair of signal output part of level type (non-pulse signal type) transducer of 15V directly is parallel to from switch S 1, on the double-end binding post of S2, just can implement the automatic operating that transducer is directly controlled household electrical appliances.
Claims (7)
1. be used for computer and manage the junction block of home electronic appliance automatically, it is characterized in that: the first pin CD of RS232C interface, the 6th pin DSR, the 8th pin CTS and nine kinds of needles RI are connected to the output cathode of voltage-stabilized power supply circuit respectively by a pull-up resistor, this four pin constitutes the terminals of 4 pairs of sensor interfaces respectively with the output negative pole of power circuit, the 4th pin DTR of RS232C interface, the 7th pin RTS is connected to the signal input part of No. 1 alternating current electronic switching circuit and 1 road light current electronic switching circuit separately by an isolating diode, the ac input end of voltage-stabilized power supply circuit is with anti-lightning strike in parallel with the surge circuit, receive civil power by supply main and plug thereof, the output negative pole of power circuit links to each other with the 5th pin GND of RS232C interface.
2. according to claim 1ly be used for the junction block that computer is managed home electronic appliance automatically, it is characterized in that: described alternating current electronic switching circuit comprises that 1 NPN triode, 1 PNP triode, 1 base resistance, 1 base biasing resistor, 1 collector resistance, 1 current limliting are with collector resistance and a solid-state relay; The base stage of one termination NPN triode of described base resistance, the other end is as the signal input part of this electronic switching circuit, described base biasing resistor is connected in parallel on the emitter junction of described PNP triode, the emitter of this PNP triode connects the output cathode of voltage-stabilized power supply circuit, collector resistance of its base stage series connection is connected to the collector electrode of described NPN triode, the emitter of NPN triode is connected to the negative pole of voltage-stabilized power supply circuit, the collector electrode of the PNP triode described collector resistance of connecting is connected to the positive pole of the signal input end of described solid-state relay, and the negative pole of the signal input end of solid-state relay connects the negative pole of voltage-stabilized power supply circuit; Two outputs of described solid-state relay constitute the output of alternating current electronic switching circuit.
3. according to claim 1ly be used for the junction block that computer is managed home electronic appliance automatically, it is characterized in that: described light current electronic switching circuit comprises a triode and base resistance, a diode, a light-emitting diode and a single-pole double throw direct current electromagnetic relay; The base stage of one termination triode of described base resistance, the other end is as the signal input part of this electronic switching circuit, the emitter of described triode is connected to the negative pole of voltage-stabilized power supply circuit, its collector electrode is connected to the negative pole of described light-emitting diode, the positive pole of light-emitting diode is connected respectively to an end of the coil of the positive pole of described diode and described direct current relay, the other end of the coil of the negative pole of diode and single-pole double throw direct current electromagnetic relay all is connected to the output cathode of voltage-stabilized power supply circuit, and six terminals of two pairs of single-pole double-throw switch (SPDT)s of described single-pole double throw direct current electromagnetic relay constitute the output of light current electronic switching circuit.
4. according to claim 1ly be used for the junction block that computer is managed home electronic appliance automatically, it is characterized in that: comprise the current limliting isolation resistance in the described circuit, switch and isolation diode, one end of described current limliting isolation resistance connects an end of switch, the other end connects the output cathode of voltage-stabilized power supply circuit, the other end of described switch connects the positive pole of diode, and draw 1 pairs of posts from the two ends of switch, sensor terminals when constituting independent the use, the negative pole of described isolation diode connects the signal input part of described alternating current electronic circuit and light current electronic switching circuit.
5. according to claim 1ly be used for the junction block that computer is managed home electronic appliance automatically, it is characterized in that: it is in parallel with the corresponding signal input of USB interface that described RS232C interface changes the serial port circuit by USB.
6. according to claim 1ly be used for the junction block that computer is managed home electronic appliance automatically, it is characterized in that: described voltage-stabilized power supply circuit is made up of power transformer, diode bridge alternating current circuit, capacitor filter and circuit of three-terminal voltage-stabilizing integrated 7808.
7. according to claim 1ly be used for the junction block that computer is managed home electronic appliance automatically, it is characterized in that: described anti-lightning strike and surge circuit is composed in series by a fuse and a piezo-resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200508345U CN202034633U (en) | 2011-03-01 | 2011-03-01 | Wire holder used for automatically managing household electronic product and electric appliance with computer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011200508345U CN202034633U (en) | 2011-03-01 | 2011-03-01 | Wire holder used for automatically managing household electronic product and electric appliance with computer |
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| CN202034633U true CN202034633U (en) | 2011-11-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176590A (en) * | 2011-03-01 | 2011-09-07 | 成都医学院 | Wire holder for automatically managing household electric appliances by computer |
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2011
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102176590A (en) * | 2011-03-01 | 2011-09-07 | 成都医学院 | Wire holder for automatically managing household electric appliances by computer |
| CN102176590B (en) * | 2011-03-01 | 2013-10-30 | 成都医学院 | Wire holder for automatically managing household electric appliances by computer |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20160301 |