CN100417880C - Acoustic quality improvement circuit for Internet electric refrigerator - Google Patents
Acoustic quality improvement circuit for Internet electric refrigerator Download PDFInfo
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- CN100417880C CN100417880C CNB031299075A CN03129907A CN100417880C CN 100417880 C CN100417880 C CN 100417880C CN B031299075 A CNB031299075 A CN B031299075A CN 03129907 A CN03129907 A CN 03129907A CN 100417880 C CN100417880 C CN 100417880C
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- power supply
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- loudspeaker
- amplitude device
- supply unit
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Abstract
The present invention relates to an Internet electric refrigerator and specifically relates to an acoustic quality improving circuit for the Internet electric refrigerator with the following effect of improving the acoustic quality of loudspeakers by eliminating the noises of the loudspeakers due to the noises of a power source. Thereby, in the present invention, a loudspeaker amplifier device and a power supply unit of the loudspeaker amplifier device are arranged on the same printed circuit board (PCB) and are electrically connected through circuit patterns on the PCB, wherein the power supply unit of the loudspeaker amplifier device supplies an operational power supply (OPS) for the loudspeaker amplifier device. In addition, the power supply unit of the loudspeaker amplifier device, which supplies the OPS for the loudspeaker amplifier device, and a power supply unit of an electric refrigerator controller, which supplies an OPS for the electric refrigerator controller, are respectively arranged. The power supply unit of the loudspeaker amplifier device supplies a power supply for a transformer. The power supply unit of the electric refrigerator controller obtains the power supply from a power supply part which is in switching mode and supplies a power supply for a power supply part of an Internet controller.
Description
Technical field
The present invention relates to a kind of internet electric refrigerator, furtherly, relate to a kind of tone quality improving circuit (a circuit to improve tone quality forinternet refrigerator) that can bring the internet electric refrigerator of following effect:, improve the tonequality of loudspeaker by removing the noise of the loudspeaker that power noise causes.
Background technology
Fig. 1 demonstrates the part of prior art internet electric refrigerator and cuts oblique view open.Fig. 2 demonstrates the structure chart of prior art internet electric refrigerator beeper.Fig. 3 demonstrates the circuit connection diagram of prior art internet electric refrigerator beeper.
As shown in the figure, the inner area of internet electric refrigerator is divided into refrigerating chamber and refrigerating chamber, and above-mentioned refrigerating chamber and refrigerating chamber open and close selectively by door 1,1 '.Above-mentioned door 1,1 ' on be respectively arranged with door handle 3,3 '.An above-mentioned door is provided with display unit (display unit) 5.Above-mentioned display unit 5 is LCD screen (LCD Screen), be used to show various information relevant and internet webpage various information such as (home page), the network controller 9 that will illustrate below above-mentioned display unit 5 is connected by lead with refrigerator work.
The top of above-mentioned refrigerating chamber and refrigerating chamber is formed with the device space 7, and the said equipment space 7 is used to be provided with the various parts relevant with the internet and the electrical control and the associated components of refrigerator.A side is provided with network controller 9 above the said equipment space 7 in addition.
Internet controller power source parts 11 are used to supply working power, start above-mentioned internet controller 9.The switch mode power supply supply part (switching mode power supply) 13 that applies power supply to above-mentioned internet controller power source parts 11 is arranged on the inside of above-mentioned internet controller 9; Last switch mode power supply supply part 13 is connected with the alternating current that is arranged on the said equipment space 7 (AC) power supply 15.
As shown in Figure 3, the inside in the said equipment space 7 and above-mentioned internet controller 9 are adjacent to be provided with loudspeaker 17 and beeper.Above-mentioned loudspeaker 17 generally is the device that converts the electrical signal to sound wave, and one is assembled with permanent magnet, moving coil, oscillating plate etc. on framework.If have electric current to pass through on the above-mentioned movable line chart, the effect by electromagnetic force then and between the permanent magnet is according to certain pattern motion.Produce vibration by above-mentioned motion oscillations plate, the air of the front and back of oscillating plate also produces identical vibration, thereby produces sound wave.
Generally, a pair of above-mentioned loudspeaker 17 about two ends are positioned on internet electric refrigerator directly exposes in the device space 7; Also can pass through passage (duct) and transmit sound equipment, above-mentioned loudspeaker 17 is built in the said equipment space 7.The front of general above-mentioned loudspeaker 17 also is equipped with catch net.
Generally, beeper is made of above-mentioned loudspeaker 17 and loudspeaker amplitude device 19.Above-mentioned loudspeaker 17 converts voice signal to audible sound frequently, and above-mentioned loudspeaker amplitude device 19 is used for voice signal is carried out amplification.
7 inside, the said equipment space also are provided with refrigerator control 21 and remote controller 23 except comprising the tut recoil simulator.Above-mentioned refrigerator control 21 is used to control the function of refrigerator; Above-mentioned remote controller 23 is used for the user is selected the control of signal.
As shown in Figure 3, above-mentioned loudspeaker amplitude device 19 is arranged on the 2nd identical printed circuit board (PCB) (the Printed circuit board) b with above-mentioned refrigerator control 21; Loudspeaker amplitude device power supply unit 25 to above-mentioned loudspeaker amplitude device 19 supply working powers is connected on the 1st identical printed circuit board (PCB) a with refrigerator control power supply unit 27 from working powers to above-mentioned refrigerator control 21 that supply, obtains power supply from a transformer 29.
But the tone quality improving circuit with prior art internet electric refrigerator of said structure has following shortcoming.
Power supply supply process from above-mentioned loudspeaker amplitude device 19, above-mentioned refrigerator control 21 and remote controller 23 etc., can recognize, above-mentioned loudspeaker amplitude device 19, above-mentioned refrigerator control 21 and remote controller 23 are arranged on the 2nd identical printed circuit board (PCB) b, obtain common working power from identical above-mentioned transformer 29 respectively.The power supply that produces by a transformer 29 can cause producing the noise that power noises cause at above-mentioned loudspeaker amplitude device 19 as common source.
In addition, on above-mentioned loudspeaker amplitude device 19 and loudspeaker amplitude device power supply unit 25 are separately positioned on separately independently the 1st printed circuit board (PCB) a and the 2nd printed circuit board (PCB) b, from being arranged on the above-mentioned loudspeaker amplitude device power supply unit 25 on above-mentioned the 1st printed circuit board (PCB) a, finish the power supply supply by power line to the above-mentioned loudspeaker amplitude device 19 that is provided with on the 2nd printed circuit board (PCB) b.So can come power noise from external belt by said power.
Especially by above-mentioned remote controller 23, the power noise of generation can flow into loudspeaker amplitude device 19, causes above-mentioned loudspeaker 17 to produce noise, finally causes the tonequality of above-mentioned loudspeaker 17 to descend.
Summary of the invention
The present invention proposes for the problem that solves above-mentioned prior art, and goal of the invention is to remove the noise of loudspeaker, will separate with power supply to the supply of other electronic devices to the power supply of above-mentioned loudspeaker amplitude device supply.
In order to realize the purpose of the invention described above, internet electric refrigerator for having the internet controller and can carrying out internet control the invention provides a kind of tone quality improving circuit structure with following feature: comprise transformer, loudspeaker amplitude device and loudspeaker amplitude device power supply unit substantially.Above-mentioned transformer carries out transformation to the AC power that flow into refrigerator inside and produces a certain size voltage; Above-mentioned loudspeaker amplitude device becomes a certain size with the course of work of refrigerator with the various voice signal amplification that the internet control procedure produces; Above-mentioned loudspeaker amplitude device power supply unit is arranged on the printed circuit board (PCB) identical with above-mentioned loudspeaker amplitude device, utilizes the output voltage of the above-mentioned transformer that does not link to each other with inner other supply units of refrigerator to produce the required voltage of above-mentioned loudspeaker amplitude device.
Tone quality improving circuit structure by internet electric refrigerator of the present invention can bring following effect:
Owing to the power suppling part spare of loudspeaker amplitude device is separated setting with the supply unit of other devices, has interdicted the power noise that flows into from other device; On identical printed circuit board (PCB), be wholely set above-mentioned loudspeaker amplitude device and above-mentioned power suppling part spare, interdicted the power noise that flows into from the outside, reduced the noise of loudspeaker, improved tonequality.
Description of drawings
Fig. 1 demonstrates the part of prior art internet electric refrigerator and cuts oblique view open.
Fig. 2 demonstrates the structure chart of prior art internet electric refrigerator beeper.
Fig. 3 demonstrates the circuit connection diagram of prior art internet electric refrigerator beeper.
Fig. 4 demonstrates the structure chart of beeper of the tone quality improving embodiment of circuit of internet electric refrigerator of the present invention.
Fig. 5 demonstrates the circuit connection diagram of the beeper of the embodiment of the invention.
The critical piece description of reference numerals
103: transformer 105: loudspeaker amplitude device power supply unit
107: loudspeaker amplitude device 109: loudspeaker
113: remote controller 115: refrigerator control
117: refrigerator control power supply unit 123: the internet controller
125: internet controller power source parts 127: switch mode power supply supply part
The 131:AC power supply unit
The specific embodiment
With reference to the accompanying drawings, the tone quality improving embodiment of circuit to internet electric refrigerator of the present invention with said structure is elaborated.
Fig. 4 demonstrates the structure chart of beeper of the tone quality improving embodiment of circuit of internet electric refrigerator of the present invention.Fig. 5 demonstrates the circuit connection diagram of the beeper of the embodiment of the invention.
As shown in the figure, the device space 7 inside are provided with audio-signal processing apparatus 101, controlling device for refrigerator 111, internet appliance 121 and exchange (AC) power supply 131.Tut signal processing apparatus 101 is used for processing audio signal; Above-mentioned controlling device for refrigerator 111 is used to control the various functions of refrigerator; Above-mentioned internet appliance 121 is used to carry out the function of the home network server relevant with the internet; Above-mentioned AC power supplies 131 is used for to supply power supplys such as said apparatus.
Tut signal processing apparatus 101 comprises transformer 103, loudspeaker amplitude device power supply unit 105, loudspeaker amplitude device 107 and loudspeaker 109 substantially.Above-mentioned transformer 103 is used for transformation rectification AC power supplies; Above-mentioned loudspeaker amplitude device power supply unit 105 is used for obtaining the power supply supply from above-mentioned transformer 103, and to above-mentioned loudspeaker amplitude device 105 supply working powers; Above-mentioned loudspeaker amplitude device 107 uses the working power of above-mentioned loudspeaker amplitude device power supply unit 105 outputs, and voice signal is carried out amplification; The sound wave that voice signal after the above-mentioned loudspeaker 109 output amplification converts to.
The AC power supplies that 103 pairs in above-mentioned transformer is input to product inside carries out transformation and rectification, converts the dc source (DC) of certain volt (V) then to.Above-mentioned loudspeaker amplitude device power supply unit 105 is exported as working power the DC power supply of above-mentioned transformer 103 conversions to above-mentioned loudspeaker amplitude device 107.
Above-mentioned loudspeaker amplitude device 107 is connected with above-mentioned loudspeaker 109, and the output voltage of above-mentioned loudspeaker amplitude device power supply unit 105 is used as working power.That is to say that above-mentioned loudspeaker amplitude device 107 carries out amplification output with voice signal by above-mentioned voltage, becomes the regeneration volume of loudspeaker 109 to export voice signal amplification.
Above-mentioned loudspeaker 109 is to convert electric energy to the device that converts acoustic energy after electromagnetic energy and the mechanical energy to, and the shape of oscillating plate can have a variety of, adopts the Any shape wherein can in the present embodiment.
Above-mentioned controlling device for refrigerator 111 comprises remote controller 113, refrigerator control 115 and refrigerator control power supply unit 117 substantially.Above-mentioned remote controller 113 is imported corresponding signal by outside remote the adjustment; Above-mentioned refrigerator control 115 drives according to the control signal of above-mentioned remote controller 113; Above-mentioned refrigerator control power supply unit 117 is used for to above-mentioned controller 115 supply power supplys.The switch mode power supply supply part 127 that above-mentioned refrigerator control power supply unit 117 will illustrate from behind obtains the power supply supply.
Above-mentioned internet appliance 121 comprises internet controller 123, internet controller power source parts 125 and switch mode power supply supply part 127 substantially.Above-mentioned internet controller 123 is used to control Internet function; Above-mentioned internet controller power source parts 125 are used for to above-mentioned internet controller 123 supply working powers; Above-mentioned switch mode power supply supply part 127 is used for producing the out-put supply to the inner required various forms of product to the inner input of refrigerator AC power supplies 131.
Power supply supply and signal processing to the tone quality improving circuit of internet electric refrigerator of the present invention with said structure is elaborated below.
At first, the AC power supplies 131 to the inner input of product obtains supply by transformer 103 and switch mode power supply supply part 127.Above-mentioned transformer 103 produces and drives the required power supply of loudspeaker; Above-mentioned switch mode power supply supply part 127 produces the power supply that is used for internet controller 123, refrigerator control 115 and remote controller 113.
That is to say that as shown in Figure 4, the out-put supply of above-mentioned transformer 103 is fed on the above-mentioned loudspeaker amplitude device 107 by above-mentioned loudspeaker amplitude device power supply unit 105.So above-mentioned loudspeaker amplitude device 107 according to the big or small amplification voice signal of necessity, is exported on the basis of the power supply that above-mentioned transformer 103 produces then.Voice signal in above-mentioned loudspeaker amplitude device 107 amplification offers the user by loudspeaker 109.At this moment the signal by 109 outputs of above-mentioned loudspeaker is the various control warning tones of refrigerator, perhaps the various voice signals that produce by the internet of user etc.
The power supply that above-mentioned in addition switch mode power supply supply part 127 produces is supplied to above-mentioned internet controller 123 by above-mentioned internet controller power source parts 125.The power supply that above-mentioned internet controller 123 utilizes above-mentioned switch mode power supply supply part 127 to produce is carried out the internet control of refrigerator, and shows in display unit 5.
In addition, the power supply of above-mentioned switch mode power supply supply part 127 generations is supplied to above-mentioned refrigerator control 115 and remote controller 113 by above-mentioned refrigerator control power supply unit 117.Above-mentioned refrigerator control 115 is carried out when the various control of the inner supply of refrigerator cold air, the power supply that utilizes above-mentioned switch mode power supply supply part 127 to provide.In like manner, the user utilizes above-mentioned remote controller 113 input refrigerators to drive signal, and when above-mentioned remote controller 113 was carried out the processing of input signal, above-mentioned switch mode power supply supply part 127 provided power supply to above-mentioned remote controller 113.
So the above-mentioned refrigerator control 115 and the remote controller 113 of above-mentioned controlling device for refrigerator 111 inside, with different, obtain supply from above-mentioned switch mode power supply supply part 127 power supplys and carry out work to transformer 103 power supplys of above-mentioned beeper 101 supplies.So the noise that produces when the drive control signal of 113 pairs of refrigerators of above-mentioned remote controller is handled produces any influence to above-mentioned transformer 103 power supply ends.This is that the supply power source path of tut control device 101 and controlling device for refrigerator 111 is separated fully because as shown in Figure 4.
In addition, in the present invention, be arranged on the 3rd printed circuit board (PCB) c identical with above-mentioned loudspeaker amplitude device 107 to the loudspeaker amplitude device power supply unit 105 of above-mentioned loudspeaker amplitude device 107 supply working powers.(please refer to Fig. 5).So the power supply of the above-mentioned loudspeaker amplitude device power supply unit 105 of process directly is provided to above-mentioned loudspeaker amplitude device 107 by the copper cash of printed circuit board (PCB) pattern.So need not in prior art, between above-mentioned loudspeaker amplitude device power supply unit 105 and loudspeaker amplitude device 107, increase extra power line.
So loudspeaker amplitude device and above-mentioned power supply unit are separately positioned on different printed circuit board (PCB) a, on the b, compare by the electric wire electric connection with above-mentioned power supply unit with above-mentioned amplitude device in the prior art, the possibility that flows into power noise than said wires is relatively little.
Moreover, in the present embodiment, to the loudspeaker amplitude device power supply unit 105 of above-mentioned loudspeaker amplitude device 107 supply working powers with to the independent respectively setting of the refrigerator control power supply unit 117 of refrigerator control 115 supply working powers, so above-mentioned loudspeaker amplitude device power supply unit 105 obtains the power supply supply from above-mentioned transformer 103, above-mentioned refrigerator control power supply unit 117 obtains power supply from the switch mode power supply supply part 127 to above-mentioned internet controller power source parts 125 supply power supplys, so interdicted inflow, and avoided because noise flows into the souffle problem that causes by the external noise of above-mentioned refrigerator control power supply unit 117.
Up to the present, though be that the center has been described in detail to embodiments of the invention, the personnel that have general knowledge in the technical field of the invention can propose a lot of distortion in basic fundamental thought range of the present invention.Basic fundamental thought of the present invention is embodied in the patent request scope, and all differences point in the equal with it scope all should be interpreted as belonging to scope of the present invention.
Claims (1)
1. the tone quality improving circuit of an internet electric refrigerator, the architectural feature of its tone quality improving circuit is: comprise transformer (103), loudspeaker amplitude device (107) and loudspeaker amplitude device power supply unit (105);
Above-mentioned transformer (103) carries out transformation to AC power, produces a certain size voltage, and only supplies with loudspeaker amplitude device power supply unit (105);
Above-mentioned loudspeaker amplitude device (107) becomes a certain size with the course of work of refrigerator with the various voice signal amplification that the internet control procedure produces;
Above-mentioned loudspeaker amplitude device power supply unit (105) is arranged on the printed circuit board (PCB) identical with above-mentioned loudspeaker amplitude device (107), utilizes the output voltage of above-mentioned transformer (103) to produce the required voltage of above-mentioned loudspeaker amplitude device (107).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031299075A CN100417880C (en) | 2003-05-22 | 2003-05-22 | Acoustic quality improvement circuit for Internet electric refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031299075A CN100417880C (en) | 2003-05-22 | 2003-05-22 | Acoustic quality improvement circuit for Internet electric refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1548879A CN1548879A (en) | 2004-11-24 |
| CN100417880C true CN100417880C (en) | 2008-09-10 |
Family
ID=34322558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031299075A Expired - Fee Related CN100417880C (en) | 2003-05-22 | 2003-05-22 | Acoustic quality improvement circuit for Internet electric refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100417880C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2204062Y (en) * | 1992-11-28 | 1995-07-26 | 陈刚 | Electronic horn for vehicle |
| CN1239860A (en) * | 1999-05-05 | 1999-12-29 | 刘达强 | Constant power driving method for loudspeaker |
| JP2000097972A (en) * | 1998-09-25 | 2000-04-07 | Asahi Kasei Denshi Kk | Current sensor |
| JP2000121224A (en) * | 1998-10-14 | 2000-04-28 | V Sink Technology:Kk | Refrigerator with communication function |
| CN1320797A (en) * | 2000-03-30 | 2001-11-07 | Lg电子株式会社 | Structure for mounting monitor to refrigerator |
| CN1346042A (en) * | 2000-09-22 | 2002-04-24 | 海尔集团公司 | Network refrigerator |
| CN1375674A (en) * | 2001-03-16 | 2002-10-23 | Lg电子株式会社 | Internet refrigerator and its operation method |
-
2003
- 2003-05-22 CN CNB031299075A patent/CN100417880C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2204062Y (en) * | 1992-11-28 | 1995-07-26 | 陈刚 | Electronic horn for vehicle |
| JP2000097972A (en) * | 1998-09-25 | 2000-04-07 | Asahi Kasei Denshi Kk | Current sensor |
| JP2000121224A (en) * | 1998-10-14 | 2000-04-28 | V Sink Technology:Kk | Refrigerator with communication function |
| CN1239860A (en) * | 1999-05-05 | 1999-12-29 | 刘达强 | Constant power driving method for loudspeaker |
| CN1320797A (en) * | 2000-03-30 | 2001-11-07 | Lg电子株式会社 | Structure for mounting monitor to refrigerator |
| CN1346042A (en) * | 2000-09-22 | 2002-04-24 | 海尔集团公司 | Network refrigerator |
| CN1375674A (en) * | 2001-03-16 | 2002-10-23 | Lg电子株式会社 | Internet refrigerator and its operation method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1548879A (en) | 2004-11-24 |
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Granted publication date: 20080910 |