CN100417880C - Sound Quality Improvement Circuit of Internet Refrigerator - Google Patents

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

Translated fromChinese

因特网电冰箱的音质改善电路Sound Quality Improvement Circuit of Internet Refrigerator

技术领域technical field

本发明涉及一种因特网电冰箱，进一步说，涉及一种可以带来如下效果的因特网电冰箱的音质改善电路(a circuit to improve tone quality forinternet refrigerator)：通过去除电源噪音引起的扬声器的杂音，改善扬声器的音质。The present invention relates to an Internet refrigerator, and furthermore, to a sound quality improvement circuit (a circuit to improve tone quality for Internet refrigerator) of an Internet refrigerator that can bring about the following effects: by removing the noise of the speaker caused by power supply noise, improving The sound quality of the speakers.

背景技术Background technique

图1显示出已有技术因特网电冰箱的部分剖开斜视图。图2显示出已有技术因特网电冰箱声音信号装置的结构图。图3显示出已有技术因特网电冰箱声音信号装置的电路连接图。FIG. 1 shows a partially cutaway oblique view of a prior art Internet refrigerator. Fig. 2 shows the structural diagram of the prior art Internet refrigerator sound signaling device. Fig. 3 shows the circuit connection diagram of the prior art Internet refrigerator sound signal device.

如图所示，因特网电冰箱的内部区分为冷藏室和冷冻室，上述冷藏室和冷冻室通过门1、1’有选择性地进行开闭。上述门1，1′上分别设置有门把手3、3′。上述一个门上设置有显示装置(display unit)5。上述显示装置5是液晶屏幕(LCD Screen)，用于显示与电冰箱工作相关的各种信息和因特网网页(home page)等各种信息，上述显示装置5通过导线连接在下面将要说明的网络控制器9。As shown in the figure, the interior of the Internet refrigerator is divided into a refrigerator compartment and a freezer compartment, and the refrigerator compartment and the freezer compartment are selectively opened and closed by doors 1, 1'. The above-mentioned doors 1, 1' are respectively provided with door handles 3, 3'. Above-mentioned one door is provided with display unit (display unit) 5. Above-mentioned display device 5 is liquid crystal screen (LCD Screen), is used for displaying various information relevant with refrigerator work and Internet web page (home page) etc., and above-mentioned display device 5 is connected to the network control system that will be described below by wire.Device 9.

上述冷藏室和冷冻室的上部形成有设备空间7，上述设备空间7用于设置与因特网相关的各种部件和电冰箱的电性控制和相关部件。另外上述设备空间7上面一侧设置有网络控制器9。An equipment space 7 is formed on the upper part of the above-mentioned refrigerator compartment and freezer compartment, and the above-mentioned equipment space 7 is used for setting various components related to the Internet and electric control and related components of the refrigerator. In addition, anetwork controller 9 is provided on the upper side of the equipment space 7 .

因特网控制器电源部件11用于供应工作电源，启动上述因特网控制器9。向上述因特网控制器电源部件11施加电源的切换模式电源供应部件(switching mode power supply)13设置在上述因特网控制器9的内部；上切换模式电源供应部件13与设置在上述设备空间7的交流电(AC)电源15相连接。The Internet controller power supply unit 11 is used to supply operating power to start the above-mentionedInternet controller 9 . A switching mode power supply part (switching mode power supply) 13 that applies power to the above-mentioned Internet controller power supply part 11 is arranged inside the above-mentionedInternet controller 9; AC)power supply 15 is connected.

如图3所示，上述设备空间7的内部与上述因特网控制器9相邻地设置有扬声器17以及声音信号装置。上述扬声器17一般是将电信号转换成声波的装置，在框架上一体组装有永久磁铁、可动线圈、振动板等。如果上述可动线图上有电流通过，则与永久磁铁之间通过电磁力的作用，按照一定的模式运动。通过上述运动振动板产生振动，振动板的前面和后面的空气也产生相同的振动，从而产生声波。As shown in FIG. 3 , aspeaker 17 and a sound signal device are provided adjacent to theInternet controller 9 inside the equipment space 7 . Thespeaker 17 is generally a device for converting electrical signals into sound waves, and a permanent magnet, a movable coil, a vibration plate, etc. are integrally assembled on the frame. If there is current passing through the above-mentioned movable line diagram, it will move according to a certain pattern through the action of electromagnetic force between the permanent magnet. Vibration is generated by the above-mentioned movement of the vibrating plate, and the air in front of and behind the vibrating plate also vibrates in the same way, thereby generating sound waves.

一般，在因特网电冰箱的上面两端安装位于左右的一对上述扬声器17，直接露出在设备空间7；也可以通过通道(duct)传递音响，将上述扬声器17内置在上述设备空间7内。一般上述扬声器17的前面还安装有保护网。Generally, a pair of above-mentionedloudspeakers 17 located on the left and right are installed on the top two ends of the Internet refrigerator, directly exposed to the equipment space 7; Generally, a protection net is also installed in front of the above-mentionedloudspeaker 17 .

一般，声音信号装置由上述扬声器17和扬声器增幅装置19构成。上述扬声器17将声音信号转换成可听音频，上述扬声器增幅装置19用于对声音信号进行增幅。Generally, the audio signal device is composed of thespeaker 17 and thespeaker amplifier 19 described above. Thespeaker 17 converts the sound signal into audible audio, and thespeaker amplifier 19 is used to amplify the sound signal.

上述设备空间7内部除了包括上述声音信号装置，还设置有电冰箱控制器21和遥控器23。上述电冰箱控制器21用于控制电冰箱的功能；上述遥控器23用于对使用者选择信号的控制。In addition to the above-mentioned sound signal device, the inside of the equipment space 7 is also provided with arefrigerator controller 21 and aremote controller 23 . Therefrigerator controller 21 is used to control the functions of the refrigerator; theremote controller 23 is used to control the user selection signal.

如图3所示，上述扬声器增幅装置19和上述电冰箱控制器21设置在相同的第2印刷电路板(Printed circuit board)b上；向上述扬声器增幅装置19供应工作电源的扬声器增幅装置电源部件25和向上述电冰箱控制器21供应工作电源的电冰箱控制器电源部件27连接在相同的第1印刷电路板a上，从一个变压器29得到电源。As shown in Figure 3, the above-mentionedloudspeaker amplifier 19 and the above-mentionedrefrigerator controller 21 are arranged on the same second printed circuit board (Printed circuit board) b; 25 and the refrigerator controllerpower supply unit 27 that supplies operating power to the above-mentionedrefrigerator controller 21 are connected on the same first printed circuit board a, and obtain power from atransformer 29.

但是，具有上述结构的已有技术因特网电冰箱的音质改善电路具有如下缺点。However, the sound quality improving circuit of the prior art Internet refrigerator having the above structure has the following disadvantages.

从上述扬声器增幅装置19、上述电冰箱控制器21和遥控器23等的电源供应过程，可以了解到，上述扬声器增幅装置19、上述电冰箱控制器21和遥控器23设置在相同的第2印刷电路板b上，分别从相同的上述变压器29得到共同的工作电源。通过一个变压器29产生的电源作为共用电源，会导致在上述扬声器增幅装置19产生电源噪音引起的杂音。From the power supply process of the above-mentioned speaker amplifyingdevice 19, the above-mentionedrefrigerator controller 21 and theremote controller 23, etc., it can be understood that the above-mentioned speaker amplifyingdevice 19, the above-mentionedrefrigerator controller 21 and theremote controller 23 are arranged on the same second printing On the circuit board b, the common working power is respectively obtained from the same above-mentionedtransformer 29 . The power generated by atransformer 29 is used as a common power source, which causes noise caused by power noise in the above-mentionedspeaker amplifier 19 .

另外，向上述扬声器增幅装置19和扬声器增幅装置电源部件25分别设置在各自独立的第1印刷电路板a和第2印刷电路板b上，从设置在上述第1印刷电路板a上的上述扬声器增幅装置电源部件25，到设置第2印刷电路板b上的上述扬声器增幅装置19通过电源线完成电源供应。于是通过上述电源线会从外部带来电源噪音。In addition, the above-mentionedspeaker amplifier 19 and the speaker amplifierpower supply part 25 are respectively provided on the first printed circuit board a and the second printed circuit board b which are independent respectively, and the above-mentioned speaker provided on the first printed circuit board a Amplifierpower supply unit 25 completes power supply to the above-mentionedspeaker amplifier 19 provided on the second printed circuit board b through a power line. Then, power supply noise is introduced from the outside through the above-mentioned power supply line.

尤其是通过上述遥控器23，产生的电源噪音会流入到扬声器增幅装置19，导致上述扬声器17产生杂音，最终导致上述扬声器17的音质下降。In particular, the power supply noise generated by theremote controller 23 will flow into thespeaker amplifier 19, causing thespeaker 17 to generate noise, and ultimately degrade the sound quality of thespeaker 17.

发明内容Contents of the invention

本发明是为了解决上述已有技术的问题而提出的，发明目的是去除扬声器的杂音，将向上述扬声器增幅装置供应的电源与向其他电子器件的供应的电源进行分离。The present invention is made to solve the above-mentioned problems of the prior art, and the purpose of the invention is to remove the noise of the speaker and to separate the power supplied to the above-mentioned speaker amplifier from the power supplied to other electronic devices.

为了实现上述本发明的目的，对于具有因特网控制器并能够进行因特网控制的因特网电冰箱，本发明提供一种具有如下特征的音质改善电路结构：大体上包括变压器、扬声器增幅装置和扬声器增幅装置电源部件。上述变压器对流入到电冰箱内部的交流电源进行变压产生一定大小的电压；上述扬声器增幅装置将电冰箱的工作过程和因特网控制过程产生的各种声音信号增幅成一定大小；上述扬声器增幅装置电源部件设置在与上述扬声器增幅装置相同的印刷电路板上，利用没有与电冰箱内部其他电源装置相连的上述变压器的输出电压产生上述扬声器增幅装置所需的电压。In order to achieve the purpose of the above-mentioned present invention, for an Internet refrigerator having an Internet controller and capable of Internet control, the present invention provides a sound quality improvement circuit structure with the following characteristics: generally including a transformer, a loudspeaker amplifier and a power supply for the loudspeaker amplifier part. The above-mentioned transformer transforms the AC power flowing into the refrigerator to generate a voltage of a certain size; the above-mentioned loudspeaker amplification device amplifies various sound signals generated by the working process of the refrigerator and the Internet control process to a certain size; the power supply of the above-mentioned speaker amplification device The components are arranged on the same printed circuit board as the speaker amplifying device, and the voltage required by the speaker amplifying device is generated by using the output voltage of the above-mentioned transformer that is not connected to other power supply devices inside the refrigerator.

通过本发明的因特网电冰箱的音质改善电路结构可以带来如下效果：The sound quality improvement circuit structure of the Internet refrigerator of the present invention can bring the following effects:

由于将扬声器增幅装置的电源供应部件与其他器件的电源装置分离设置，遮断了从其它器件流入的电源噪音；在相同的印刷电路板上一体设置上述扬声器增幅装置和上述电源供应部件，遮断了从外部流入的电源噪音，减少了扬声器的杂音，提高了音质。Since the power supply part of the loudspeaker amplifier is separated from the power supply devices of other devices, the power supply noise flowing from other devices is blocked; the speaker amplifier and the power supply part are integrally arranged on the same printed circuit board. Power supply noise flowing in from the outside reduces speaker noise and improves sound quality.

附图说明Description of drawings

图1显示出已有技术因特网电冰箱的部分剖开斜视图。FIG. 1 shows a partially cutaway oblique view of a prior art Internet refrigerator.

图2显示出已有技术因特网电冰箱声音信号装置的结构图。Fig. 2 shows the structural diagram of the prior art Internet refrigerator sound signaling device.

图3显示出已有技术因特网电冰箱声音信号装置的电路连接图。Fig. 3 shows the circuit connection diagram of the prior art Internet refrigerator sound signal device.

图4显示出本发明因特网电冰箱的音质改善电路的实施例的声音信号装置的结构图。Fig. 4 shows the structural diagram of the sound signal device of the embodiment of the sound quality improvement circuit of the Internet refrigerator of the present invention.

图5显示出本发明实施例的声音信号装置的电路连接图。Fig. 5 shows the circuit connection diagram of the sound signal device according to the embodiment of the present invention.

主要部件附图标记说明Explanation of reference signs of main components

103：变压器                  105：扬声器增幅装置电源部件103: Transformer 105: Power supply components for loudspeaker amplifier

107：扬声器增幅装置          109：扬声器107: Loudspeaker amplifier 109: Loudspeaker

113：遥控器                  115：电冰箱控制器113: Remote control 115: Refrigerator controller

117：电冰箱控制器电源部件    123：因特网控制器117: Refrigerator controller power supply unit 123: Internet controller

125：因特网控制器电源部件    127：切换模式电源供应部件125: Internet controller power supply unit 127: Switch mode power supply unit

131：AC电源部件131: AC power supply unit

具体实施方式Detailed ways

下面参照附图，对具有上述结构的本发明因特网电冰箱的音质改善电路的实施例进行详细说明。Embodiments of the sound quality improving circuit of the Internet refrigerator of the present invention having the above-mentioned structure will be described in detail below with reference to the accompanying drawings.

图4显示出本发明因特网电冰箱的音质改善电路的实施例的声音信号装置的结构图。图5显示出本发明实施例的声音信号装置的电路连接图。Fig. 4 shows the structural diagram of the sound signal device of the embodiment of the sound quality improvement circuit of the Internet refrigerator of the present invention. Fig. 5 shows the circuit connection diagram of the sound signal device according to the embodiment of the present invention.

如图所示，设备空间7内部设置有声音信号处理装置101、电冰箱控制装置111、因特网装置121和交流(AC)电源131。上述声音信号处理装置101用于处理声音信号；上述电冰箱控制装置111用于控制电冰箱的各种功能；上述因特网装置121用于执行与因特网相关的家庭网络服务器的功能；上述AC电源131用于向上述装置等供应电源。As shown in the figure, an audio signal processing device 101 , a refrigerator control device 111 , an Internet device 121 and an alternating current (AC) power supply 131 are installed inside the equipment space 7 . The above-mentioned sound signal processing device 101 is used for processing sound signals; the above-mentioned refrigerator control device 111 is used for controlling various functions of the refrigerator; the above-mentioned Internet device 121 is used for executing the function of the home network server related to the Internet; For supplying power to the above devices, etc.

上述声音信号处理装置101大体上包括变压器103、扬声器增幅装置电源部件105、扬声器增幅装置107和扬声器109。上述变压器103用于变压整流AC电源；上述扬声器增幅装置电源部件105用于从上述变压器103得到电源供应，并且向上述扬声器增幅装置105供应工作电源；上述扬声器增幅装置107使用上述扬声器增幅装置电源部件105输出的工作电源，对声音信号进行增幅；上述扬声器109输出增幅后的声音信号转换成的声波。The above-mentioned sound signal processing device 101 generally includes a transformer 103 , a speaker amplifierpower supply unit 105 , aspeaker amplifier 107 and aspeaker 109 . The above-mentioned transformer 103 is used for transforming and rectifying the AC power supply; the above-mentioned speaker amplifying devicepower supply part 105 is used to obtain power supply from the above-mentioned transformer 103, and supplies operating power to the above-mentioned speaker amplifyingdevice 105; the above-mentioned speaker amplifyingdevice 107 uses the power supply of the above-mentioned speaker amplifying device The working power output by thecomponent 105 amplifies the sound signal; thespeaker 109 outputs the sound wave converted from the amplified sound signal.

上述变压器103对输入到产品内部的AC电源进行变压和整流，然后转换成一定伏特(V)的直流电源(DC)。上述扬声器增幅装置电源部件105将上述变压器103转换的DC电源作为工作电源向上述扬声器增幅装置107输出。The transformer 103 transforms and rectifies the AC power input into the product, and then converts it into a direct current (DC) of a certain volt (V). The speaker amplifierpower supply unit 105 outputs the DC power converted by the transformer 103 to thespeaker amplifier 107 as operating power.

上述扬声器增幅装置107与上述扬声器109相连接，将上述扬声器增幅装置电源部件105的输出电压作为工作电源使用。也就是说，上述扬声器增幅装置107将声音信号通过上述电压进行增幅输出，将声音信号增幅成扬声器109的再生音量进行输出。Thespeaker amplifier 107 is connected to thespeaker 109, and uses the output voltage of the speaker amplifierpower supply unit 105 as an operating power source. That is, thespeaker amplifier 107 amplifies and outputs the audio signal by the voltage, and amplifies the audio signal to the reproduction volume of thespeaker 109 for output.

上述扬声器109是将电能转换成电磁能和机械能之后转换成声音能量的装置，振动板的形状可以有很多种，在本实施例中采用其中的任何形状都可以。The above-mentionedspeaker 109 is a device that converts electrical energy into electromagnetic energy and mechanical energy and then converts it into sound energy. There are many shapes of the vibrating plate, and any shape can be used in this embodiment.

上述电冰箱控制装置111大体上包括遥控器113、电冰箱控制器115和电冰箱控制器电源部件117。上述遥控器113通过外部远距离调整，输入相应的信号；上述电冰箱控制器115按照上述遥控器113的控制信号进行驱动；上述电冰箱控制器电源部件117用于向上述控制器115供应电源。上述电冰箱控制器电源部件117从后面将要说明的切换模式电源供应部件127得到电源供应。The refrigerator control device 111 generally includes a remote controller 113 , a refrigerator controller 115 and a refrigerator controller power supply unit 117 . The above-mentioned remote control 113 is adjusted by the outside, and input the corresponding signal; the above-mentioned refrigerator controller 115 is driven according to the control signal of the above-mentioned remote controller 113; The above-mentioned refrigerator controller power supply unit 117 is supplied with power from a switching mode power supply unit 127 which will be described later.

上述因特网装置121大体上包括因特网控制器123、因特网控制器电源部件125和切换模式电源供应部件127。上述因特网控制器123用于控制因特网功能；上述因特网控制器电源部件125用于向上述因特网控制器123供应工作电源；上述切换模式电源供应部件127用于向电冰箱内部输入AC电源131，产生向产品内部所需的各种形态的输出电源。The above-mentioned Internet device 121 generally includes an Internet controller 123 , an Internet controller power supply part 125 and a switching mode power supply part 127 . Above-mentioned Internet controller 123 is used for controlling Internet function; Above-mentioned Internet controller power supply part 125 is used for supplying working power to above-mentioned Internet controller 123; Above-mentioned switching mode power supply part 127 is used for inputting AC power 131 to refrigerator interior, produces to Various forms of output power required inside the product.

下面对具有上述结构的本发明因特网电冰箱的音质改善电路的电源供应和信号处理过程进行详细说明。The power supply and signal processing process of the sound quality improving circuit of the Internet refrigerator of the present invention with the above structure will be described in detail below.

首先，向产品内部输入的AC电源131通过变压器103和切换模式电源供应部件127得到供应。上述变压器103产生驱动扬声器所需的电源；上述切换模式电源供应部件127产生用于因特网控制器123、电冰箱控制器115和遥控器113的电源。First, the AC power 131 input to the inside of the product is supplied through the transformer 103 and the switching mode power supply part 127 . The above-mentioned transformer 103 generates the power required to drive the speaker; the above-mentioned switching mode power supply part 127 generates the power for the Internet controller 123 , the refrigerator controller 115 and the remote controller 113 .

也就是说，如图4所示，上述变压器103的输出电源通过上述扬声器增幅装置电源部件105供应到上述扬声器增幅装置107上。于是上述扬声器增幅装置107在上述变压器103产生的电源的基础上，按照必要的大小增幅声音信号，然后进行输出。在上述扬声器增幅装置107增幅的声音信号通过扬声器109提供给使用者。这时通过上述扬声器109输出的信号是电冰箱的各种控制警告音，或者使用者通过因特网产生的各种声音信号等。That is to say, as shown in FIG. 4 , the output power of the transformer 103 is supplied to thespeaker amplifier 107 through the speaker amplifierpower supply unit 105 . Therefore, the above-mentionedspeaker amplifier 107 amplifies the sound signal according to the necessary magnitude on the basis of the power generated by the above-mentioned transformer 103, and then outputs it. The audio signal amplified by thespeaker amplifier 107 is provided to the user through thespeaker 109 . At this time, the signals output by thespeaker 109 are various control warning sounds of the refrigerator, or various sound signals generated by the user through the Internet.

另外上述切换模式电源供应部件127产生的电源通过上述因特网控制器电源部件125供应给上述因特网控制器123。上述因特网控制器123利用上述切换模式电源供应部件127产生的电源执行电冰箱的因特网控制，并在显示装置5进行显示。In addition, the power generated by the switching mode power supply part 127 is supplied to the above-mentioned Internet controller 123 through the above-mentioned Internet controller power supply part 125 . The Internet controller 123 executes the Internet control of the refrigerator using the power generated by the switching mode power supply part 127 and displays it on the display device 5 .

另外，上述切换模式电源供应部件127产生的电源通过上述电冰箱控制器电源部件117供应给上述电冰箱控制器115和遥控器113。上述电冰箱控制器115执行向电冰箱内部供应冷气的各种控制时，利用上述切换模式电源供应部件127提供的电源。同理，使用者利用上述遥控器113输入电冰箱驱动信号，上述遥控器113执行输入信号的处理时，上述切换模式电源供应部件127向上述遥控器113提供电源。In addition, the power generated by the switching mode power supply part 127 is supplied to the refrigerator controller 115 and the remote controller 113 through the refrigerator controller power supply part 117 . The refrigerator controller 115 utilizes the power supplied from the switching mode power supply unit 127 when performing various controls for supplying cool air to the inside of the refrigerator. Similarly, the user uses the remote controller 113 to input a driving signal of the refrigerator, and when the remote controller 113 processes the input signal, the switching mode power supply part 127 provides power to the remote controller 113 .

于是上述电冰箱控制装置111内部的上述电冰箱控制器115和遥控器113，与向上述声音信号装置101供应的变压器103电源不同，从上述切换模式电源供应部件127电源得到供应进行工作。所以从上述遥控器113对电冰箱的驱动控制信号进行处理时产生的噪音对上述变压器103电源端部产生任何影响。这是由于如图4所示，上述声音控制装置101和电冰箱控制装置111的供应电源路径完全分离。So the above-mentioned refrigerator controller 115 and the remote controller 113 inside the above-mentioned refrigerator control device 111 are different from the transformer 103 power supply supplied to the above-mentioned voice signal device 101, and are supplied from the above-mentioned switching mode power supply part 127 to work. Therefore, the noise produced when the remote controller 113 processes the driving control signal of the refrigerator has any influence on the power supply end of the transformer 103 . This is because, as shown in FIG. 4 , the power supply paths of the audio control device 101 and the refrigerator control device 111 are completely separated.

另外，在本发明中，向上述扬声器增幅装置107供应工作电源的扬声器增幅装置电源部件105设置在与上述扬声器增幅装置107相同的第3印刷电路板c上。(请参照图5)。于是经过上述扬声器增幅装置电源部件105的电源通过印刷电路板图案的铜线直接提供到上述扬声器增幅装置107。所以无需象已有技术中那样，在上述扬声器增幅装置电源部件105和扬声器增幅装置107之间增加额外的电源线。In addition, in the present invention, the speakeramplifier power unit 105 for supplying operating power to thespeaker amplifier 107 is provided on the same third printed circuit board c as thespeaker amplifier 107 . (Please refer to Figure 5). Then, the power passing through the speaker amplifierpower supply part 105 is directly supplied to thespeaker amplifier 107 through the copper wire patterned on the printed circuit board. Therefore, there is no need to add an extra power line between thepower supply part 105 of thespeaker amplifier device 107 and thespeaker amplifier device 107 as in the prior art.

所以扬声器增幅装置和上述电源部件分别设置在不同的的印刷电路板a，b上，与已有技术中上述增幅装置和上述电源部件通过电线电性连接相比，比上述电线流入电源噪音的可能性相对小。Therefore, the loudspeaker amplifier and the above-mentioned power supply components are respectively arranged on different printed circuit boards a and b. Compared with the electrical connection between the above-mentioned amplifier and the above-mentioned power supply components in the prior art, it is less likely that the above-mentioned wires will flow into the power supply noise. Sex is relatively small.

不仅如此，在本实施例中，向上述扬声器增幅装置107供应工作电源的扬声器增幅装置电源部件105和向电冰箱控制器115供应工作电源的电冰箱控制器电源部件117分别单独设置，所以上述扬声器增幅装置电源部件105从上述变压器103得到电源供应，上述电冰箱控制器电源部件117从向上述因特网控制器电源部件125供应电源的切换模式电源供应部件127得到电源，所以遮断了通过上述电冰箱控制器电源部件117的外部噪音的流入，并避免了由于噪音流入引起的杂音问题。Not only that, in this embodiment, the speaker amplifierpower supply unit 105 that supplies operating power to the above-mentionedspeaker amplifier 107 and the refrigerator controller power supply unit 117 that supplies operating power to the refrigerator controller 115 are separately provided, so the above-mentioned speaker Amplifierpower supply part 105 obtains power supply from above-mentioned transformer 103, and above-mentioned refrigerator controller power supply part 117 obtains power supply from switching mode power supply part 127 that supplies power to above-mentioned Internet controller power supply part 125, so it is blocked by above-mentioned refrigerator control power supply part 127. The inflow of external noise of the power supply part 117 of the device is avoided, and the noise problem caused by the inflow of noise is avoided.

到目前为止，虽然对本发明的实施例为中心进行了详细的说明，但是在本发明所属技术领域内具有一般知识的人员在本发明的基本技术思想范围内可以提出很多变形。本发明的基本技术思想体现在专利请求范围内，与之同等范围内的所有差异点都应该解释为属于本发明的范围。Although the embodiments of the present invention have been described in detail so far, those who have ordinary knowledge in the technical field to which the present invention pertains can propose many modifications within the scope of the basic technical idea of the present invention. The basic technical idea of the present invention is embodied within the scope of the patent claim, and all differences within the same scope should be interpreted as belonging to the scope of the present invention.

Claims (1)

Translated fromChinese

1. 一种因特网电冰箱的音质改善电路，其音质改善电路的结构特征在于：包括变压器(103)、扬声器增幅装置(107)和扬声器增幅装置电源部件(105)；1. A sound quality improvement circuit of an Internet refrigerator, the structural feature of its sound quality improvement circuit is: comprising a transformer (103), a loudspeaker amplifier (107) and a loudspeaker amplifier power supply unit (105);上述变压器(103)对交流电源进行变压，产生一定大小的电压，并且只供给扬声器增幅装置电源部件(105)；The above-mentioned transformer (103) transforms the AC power supply to generate a certain voltage, and only supplies the power supply unit (105) of the loudspeaker amplifier device;上述扬声器增幅装置(107)将电冰箱的工作过程和因特网控制过程产生的各种声音信号增幅成一定大小；The above-mentioned loudspeaker amplification device (107) amplifies various sound signals generated by the working process of the refrigerator and the Internet control process to a certain size;上述扬声器增幅装置电源部件(105)设置在与上述扬声器增幅装置(107)相同的印刷电路板上，利用上述变压器(103)的输出电压产生上述扬声器增幅装置(107)所需的电压。The power supply part (105) of the speaker amplifier (107) is arranged on the same printed circuit board as the speaker amplifier (107), and uses the output voltage of the transformer (103) to generate the voltage required by the speaker amplifier (107).

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