CN102929120B - Multifunctional clock - Google Patents
Multifunctional clock Download PDFInfo
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- CN102929120B CN102929120B CN201210443686.2A CN201210443686A CN102929120B CN 102929120 B CN102929120 B CN 102929120B CN 201210443686 A CN201210443686 A CN 201210443686A CN 102929120 B CN102929120 B CN 102929120B
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- circuit
- filter circuit
- power supply
- power
- electromagnetic interference
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Abstract
Disclosed is a multifunctional clock. The multifunctional clock comprises an outer shell and is characterized in that a time display device, at least one alternating current power supply socket and at least one universal serial bus (USB) charger are arranged on the outer shell. A lightning protection circuit, an input anti-electromagnetic interference filter circuit, a direct current conversion circuit and a direct-current output filter circuit are arranged in the outer shell. An input end of the lightning protection circuit is connected with an alternating current power supply, and an output end of the lightning protection circuit is connected with the input anti-electromagnetic interference filter circuit. One way of an output end of the input anti-electromagnetic interference filter circuit is connected with the alternating current power supply socket, and the other way of the output end of the input anti-electromagnetic interference filter circuit is connected with the USB charger and the time display device through a rectification filter circuit, the direct current conversion circuit and the direct-current output filter circuit. According to the multifunctional clock, multiple functions are combined in one. The multifunctional clock is high in conversion efficiency, small in volume, light in weight, convenient to carry and safe and reliable in utilization.
Description
[technical field]
The present invention relates to power supply change-over device, particularly relate to a kind of multifunction timepiece that integrates the several functions such as clock display, AC power supplies conversion socket, USB charging.
[background technology]
Electronic product has been widely applied in the every field of people's life at present, and each product be unable to do without power supply.The galvanic small-sized electronic product of many uses needs the alternating current that utility network is provided to convert the direct current mating with product to.Existing power supply change-over device is various informative, but that ubiquity power consumption is large, and conversion efficiency is low, the volume problem such as be very much not easy to carry.On the other hand, existing AC Power supply socket and electronic clock all only have single linkage function and time display function, and do not possess for functions such as product chargings, when making people at out of town trip or going out, have to carry the devices such as converter, charger simultaneously, thereby normal sense inconvenience.
[summary of the invention]
The present invention is intended to address the above problem, and provides one to gather multi-function in integral whole, and conversion efficiency is high, and volume is little, lightweight, be easy to carry, safe and reliable multifunction timepiece.
For achieving the above object, the invention provides a kind of multifunction timepiece, this device comprises shell, it is characterized in that, on shell, be provided with time display, and be provided with at least one AC Power supply socket and at least one USB charger, in shell, be provided with lightning protection circuit, input anti-electromagnetic interference filter circuit, DC transfer circuit and direct current output filter circuit, the input end of described lightning protection circuit is connected with AC power, its output terminal is connected with the anti-electromagnetic interference filter circuit of input, output terminal one tunnel of inputting anti-electromagnetic interference filter circuit is connected with AC Power supply socket, another road is through current rectifying and wave filtering circuit, DC transfer circuit and direct current output filter circuit are connected with USB charger and time display.
On shell, be also provided with power switch, hummer and set of time button.
Time display, AC Power supply socket and USB charger are located at shell front side, and power switch, hummer and set of time button are located at cover top portion.
Shell is by upper casing, lower casing, front interior plate, front outer panel and back side panel is involutory is formed by connecting, upper casing is provided with the mounting hole of power switch, hummer and set of time button, front interior plate is fixed on upper casing, lower casing front side, front outer panel is connected in front interior plate front side, front interior plate is provided with the interior mounting hole for display, AC Power supply socket and USB charger are installed, and front outer panel is provided with the outer mounting hole corresponding with the interior mounting hole of described AC Power supply socket and USB charger.
Lightning protection circuit comprises surge absorber M1, M2, M3, Thermal Cutoffs TF1 and thermistor NTC1, wherein, Thermal Cutoffs TF1 is connected with zero line with the live wire of AC power respectively with thermistor NTC1, surge absorber M1 is connected between the live wire and zero line of AC power, surge absorber M2 is connected between the live wire and ground wire of AC power, and surge absorber M3 is connected between the zero line and ground wire of AC power.
Inputting anti-electromagnetic interference filter circuit is the two π type filtering circuits that consist of capacitor C 1, C2, CX inductance L 1, L2.
DC transfer circuit is that it makes USB charger output constant current constant-voltage charge electric current for the pulse width modulated inverter of DC-DC conversion.
Direct current output filter circuit is the π type filtering circuit consisting of inductance L 3, capacitor C 7, C8.
Time display is the one in LED clock, LCD clock and digital dock.
Contribution of the present invention is, it efficiently solves the problems such as existing time clock feature is single.The present invention integrates clock display, AC power supplies conversion socket, USB charging, lightning protection and inputs the several functions such as anti-electromagnetic interference (EMI), has power supply conversion efficiency high, and volume is little, lightweight, be easy to carry, the feature such as safe and reliable.When people travel outdoors, as long as carry this multifunction timepiece, can solve the problems such as power supply connection, household electrical appliance charging, clock, alarm clock, and needn't distinguish the multiple electronic products such as supply socket, charger.
[accompanying drawing explanation]
Fig. 1 is profile schematic diagram of the present invention.
Fig. 2 is parts exploded perspective schematic diagram of the present invention.
Fig. 3 is circuit structure block diagram of the present invention.
Fig. 4 is circuit theory diagrams of the present invention.
Fig. 5 is lightning protection circuit schematic diagram of the present invention.
Fig. 6 is the anti-electromagnetic interference filter circuit schematic diagram of input of the present invention.
Fig. 7 is direct current output filter circuit schematic diagram of the present invention.
[embodiment]
The following example is further explanation of the present invention, and the present invention is not constituted any limitation.
Consult Fig. 1～Fig. 3, multifunction timepiece of the present invention comprises shell 10, time display 20, AC Power supply socket 30, USB charger 40, lightning protection and inputs anti-electromagnetic interference filter circuit 51, current rectifying and wave filtering circuit 52 and DC transfer circuit 53, and described each circuit is located on wiring board 90.
As Fig. 2, in the present embodiment, described shell 10 ovalizes, it is by upper casing 11, lower casing 12, front interior plate 13, front outer panel 14 and back side panel is involutory is formed by connecting.At upper casing 11 tops, be provided with power switch mounting hole 111, hummer mounting hole 112 and set of time key hole 113.Described front interior plate 13 is screwed in upper casing 11, lower casing 12 front sides, front interior plate 13 is provided with 131, two of interior mounting holes for display is installed for the interior mounting hole 132 of AC Power supply socket being installed and for the interior mounting hole 133 of USB charger is installed.The coboundary of front interior plate 13 is provided with the connecting hole 134 of using with front outer panel 14 clampings.Front outer panel 14 is provided with the outer mounting hole corresponding with the interior mounting hole of described AC Power supply socket and USB charger 141,142, and front outer panel 14 coboundarys are provided with dead bolt 143.Front outer panel 14 is connected in front interior plate 13 front sides by the connecting hole 134 that its dead bolt 143 is snapped in to front interior plate.Back side panel is screwed in upper casing 11, lower casing 12 rear sides.
As shown in Figure 1, Figure 2, at the in-built free display 20 of interior mounting hole 131 of the front interior plate 13 of shell 10, this time display can be any in LED clock, LCD clock and digital dock, and the internal circuit of this time display 20 can be any in existing LED clock, LCD clock and digital clock circuit.In the present embodiment, this time display 20 is LED clock, and its circuit consists of Micro-processor MCV and quartz (controlled) oscillator and peripheral circuit thereof, and time display 20 is connected with DC transfer circuit 53, by this DC transfer circuit, for it, provides display power supply.Consider the labile factor of external electrical network, can on time display 20, install dry cell or button cell, for its retention time, and while preventing from starting shooting as reserve battery from new rectification clock.
As shown in Figure 1, Figure 2, in the present embodiment, outside two on two interior mounting holes 132 of front interior plate 13 and front outer panel 14, in mounting hole 141, two AC Power supply socket 30 are housed, this AC socket can be the Three-hole socket that meets China, Europe or other national standard, the both sides of each AC Power supply socket 30 are respectively fixing by screw and front interior plate 13, and the front end of two AC Power supply socket 30 is concordant with the outside surface of front outer panel 14.The attaching plug of the household electrical appliance such as notebook computer can directly be plugged into AC Power supply socket 30, for it provides AC power.In the interior mounting hole 133 of front interior plate and the outer mounting hole 142 of front outer panel 14, USB charger 40 is housed, the front end of USB charger 40 is concordant with the outside surface of front outer panel 14, and its output voltage is 5V, can be the electronic product chargings such as mobile phone.In the power switch mounting hole 111 at upper casing 11 tops, power switch 60 is housed.In the hummer mounting hole 112 at upper casing 11 tops, hummer 70 is housed, for sending ring of alarm clock.The in-built button 80 that arranges if having time of set of time key hole 113 at upper casing 11 tops, for adjustment time and setting alarm clock.This power switch 60, hummer 70 and set of time button 80 are all connected with wiring board 90.
Circuit part of the present invention is located in shell 10, as shown in Figure 3, in the present embodiment, circuit of the present invention comprises lightning protection circuit 51, inputs anti-electromagnetic interference filter circuit 52, DC transfer circuit 53 and direct current output filter circuit 54, and foregoing circuit is located on wiring board 90.
Described lightning protection circuit 51 comprises surge absorber M1, M2, M3, Thermal Cutoffs TF1 and thermistor NTC1, wherein, Thermal Cutoffs TF1 is connected with zero line with the live wire of AC power respectively with thermistor NTC1, surge absorber M1 is connected between the live wire and zero line of AC power, surge absorber M2 is connected between the live wire and ground wire of AC power, and surge absorber M3 is connected between the zero line and ground wire of AC power.
As Fig. 5, in the present embodiment, described lightning protection circuit 51 comprises three surge absorber M1, M2, M3 and a Thermal Cutoffs TF1 and a thermistor NTC1, described surge absorber M1, M2, M3 are voltage dependent resistor (VDR), the input end of lightning protection circuit 51 is connected with 100V～240V AC power, and its output terminal is connected with the anti-electromagnetic interference filter circuit 52 of input.In Fig. 4, surge absorber M1 is connected between the live wire and zero line of AC power, and surge absorber M2 is connected between the live wire and ground wire of AC power, and surge absorber M3 is serially connected with on the ground wire of AC power.Thermal Cutoffs TF1 is connected with zero line with the live wire of AC power respectively with thermistor NTC1.When there is thunderbolt, if high pressure thunder and lightning is when electrical network imports power supply, the circuit consisting of three surge absorber M1, M2, M3 and Thermal Cutoffs TF1, thermistor NTC1 is protected.As Fig. 4; when being added in the voltage at described surge absorber two ends and exceeding its operating voltage; its resistance reduces; make high-pressure energy consumption on surge absorber; if electric current is excessive; Thermal Cutoffs TF1, thermistor NTC1 are burnt and protect late-class circuit, and this lightning protection circuit makes to be separated with switching power circuit after surge absorber short-circuit failure, and can not cause and catch fire.
As Fig. 6, in the present embodiment, the anti-electromagnetic interference filter circuit 52 of described input is the two π type filtering circuits that consist of capacitor C 1, C2, CX, inductance L 1, L2, and its input end is connected with the bridge rectifier circuit consisting of diode D1, D2, D3, D4.This anti-electromagnetic interference filter circuit 52 suppresses for the electromagnetic noise to input power and noise signal, prevents the interference to power supply, the interference of the high frequency clutter that simultaneously also prevents power supply generation itself to electrical network.As Fig. 3, the output terminal of the anti-electromagnetic interference filter circuit 52 of this input divides two-way, one tunnel is connected with AC Power supply socket 30, makes from the alternating current of electrical network input, and through lightning protection circuit 511, be directly that two AC Power supply socket 30 are powered with entering anti-electromagnetic interference filter circuit 512.Another road of inputting anti-electromagnetic interference filter circuit output is connected with USB charger 40 and time display 20 through current rectifying and wave filtering circuit 52, DC transfer circuit 53 and direct current output filter circuit 54, DC transfer circuit is directly exported the direct current of 5V/1A to USB charger 40, for user provides constant-current constant-voltage charging, and provide the direct current of 3.3V/20mA for time display 20.
As Fig. 4; in the present embodiment; described DC transfer circuit 53 is the pulse width modulated inverters for DC-DC conversion; its inside is integrated with input over under-voltage protection circuit, output over under-voltage protection circuit, output overcurrent holding circuit, output short circuit protection circuit etc., makes USB charger 40 output constant current constant-voltage charge electric currents.
As Fig. 7, in the present embodiment, described direct current output filter circuit 54 is the π type filtering circuits that consist of inductance L 3, capacitor C 7, C8, by this π type filtering circuit, can greatly reduce output ripple, obtains clean direct supply.
Although the present invention is disclosed by above embodiment, protection scope of the present invention is not limited to this, and under the condition that is not departing from the present invention design, distortion that above each member is done, replacement etc. all will fall within the scope of claim of the present invention.
Claims (5)
1. a multifunction timepiece, comprise shell (10), it is characterized in that, on shell (10), be provided with time display (20), and be provided with at least one AC Power supply socket (30) and at least one USB charger (40), in shell (10), be provided with lightning protection circuit (51), input anti-electromagnetic interference filter circuit (52), DC transfer circuit (53) and direct current output filter circuit (54), the input end of described lightning protection circuit (51) is connected with AC power, its output terminal is connected with the anti-electromagnetic interference filter circuit of input (52), output terminal one tunnel of inputting anti-electromagnetic interference filter circuit (52) is connected with AC Power supply socket (30), another road is through current rectifying and wave filtering circuit (52), DC transfer circuit (53) and direct current output filter circuit (54) are connected with USB charger (40) and time display (20), described lightning protection circuit (51) comprises surge absorber (M1, M2, M3), Thermal Cutoffs (TF1) and thermistor (NTC1), wherein, Thermal Cutoffs (TF1) is connected with zero line with the live wire of AC power respectively with thermistor (NTC1), surge absorber M1 is connected between the live wire and zero line of AC power, surge absorber M2 is connected between the live wire and ground wire of AC power, surge absorber M3 is connected between the zero line and ground wire of AC power, the anti-electromagnetic interference filter circuit of described input (52) is by electric capacity (C1, C2, CX) inductance (L1, L2) the two π type filtering circuits that form, described DC transfer circuit (53) is the pulse width modulated inverter for DC-DC conversion, it makes USB charger (40) output constant current constant-voltage charge electric current, described direct current output filter circuit (54) is by inductance (L3), electric capacity (C7, C8) the π type filtering circuit forming.
2. multifunction timepiece as claimed in claim 1, is characterized in that, is also provided with power switch (60), hummer (70) and set of time button (80) on shell (10).
3. multifunction timepiece as claimed in claim 2, it is characterized in that, described time display (20), AC Power supply socket (30) and USB charger (40) are located at shell (10) front side, and power switch (60), hummer (70) and set of time button (80) are located at shell (10) top.
4. multifunction timepiece as claimed in claim 1, it is characterized in that, described shell (10) is by upper casing (11), lower casing (12), front interior plate (13), front outer panel (14) and back side panel is involutory is formed by connecting, upper casing (11) is provided with power switch (60), the mounting hole (111 of hummer (70) and set of time button (80), 112, 113), front interior plate (13) is fixed on upper casing (11), lower casing (12) front side, front outer panel (14) is connected in front interior plate (13) front side, front interior plate (13) is provided with for display is installed, the interior mounting hole (131 of AC Power supply socket and USB charger, 132, 133), front outer panel (14) is provided with the outer mounting hole (141 corresponding with the interior mounting hole of described AC Power supply socket and USB charger, 142).
5. multifunction timepiece as claimed in claim 1, is characterized in that, described time display (20) is the one in LED clock, LCD clock and digital dock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210443686.2A CN102929120B (en) | 2012-11-08 | 2012-11-08 | Multifunctional clock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210443686.2A CN102929120B (en) | 2012-11-08 | 2012-11-08 | Multifunctional clock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102929120A CN102929120A (en) | 2013-02-13 |
| CN102929120B true CN102929120B (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210443686.2A Expired - Fee Related CN102929120B (en) | 2012-11-08 | 2012-11-08 | Multifunctional clock |
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| Country | Link |
|---|---|
| CN (1) | CN102929120B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762952A (en) * | 2014-01-10 | 2014-04-30 | 深圳市鼎信通达科技有限公司 | Differential simulation voice conversion circuit |
| CN109164698B (en) * | 2018-09-28 | 2021-01-26 | 出门问问信息科技有限公司 | Electronic device |
| CN111459008A (en) * | 2020-01-04 | 2020-07-28 | 杨凤全 | Energy-saving environment-friendly AC/DC quartz clock and watch wall clock |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2080241U (en) * | 1990-06-26 | 1991-07-03 | 昆明煤炭科学研究所 | Low power lock controlled power source socket |
| CN201278420Y (en) * | 2008-09-17 | 2009-07-22 | 林锋 | Intelligent multifunctional electric power socket |
| CN101593906A (en) * | 2009-01-01 | 2009-12-02 | 吴喜 | The method that a kind of intelligent and safe control of mobile socket is realized |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000014021A (en) * | 1998-06-22 | 2000-01-14 | Sanyo Electric Co Ltd | Charger |
-
2012
- 2012-11-08 CN CN201210443686.2A patent/CN102929120B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2080241U (en) * | 1990-06-26 | 1991-07-03 | 昆明煤炭科学研究所 | Low power lock controlled power source socket |
| CN201278420Y (en) * | 2008-09-17 | 2009-07-22 | 林锋 | Intelligent multifunctional electric power socket |
| CN101593906A (en) * | 2009-01-01 | 2009-12-02 | 吴喜 | The method that a kind of intelligent and safe control of mobile socket is realized |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2000-14021A 2000.01.14 |
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| CN102929120A (en) | 2013-02-13 |
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