CN212381225U

CN212381225U - Voice and IOT WIFI two-in-one module

Info

Publication number: CN212381225U
Application number: CN202020920167.0U
Authority: CN
Inventors: 高照; 王晓乐; 谢升平
Original assignee: Huizhou Gaoshengda Technology Co Ltd
Current assignee: Huizhou Gaoshengda Technology Co Ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2021-01-19
Anticipated expiration: 2030-05-27

Abstract

The utility model relates to a WIFI technical field discloses a pronunciation and two unification modules of IOT WIFI, including circuit board, voice module and IOT WIFI module. This application is through installing IOT WIFI module and voice module respectively on same circuit board for before assembling to household electrical appliances in advance with the communication debugging between IOT WIFI module and the voice module, the user assemble behind household electrical appliances only need debug the WIFI signal and with the automatically controlled board of household electrical appliances carry out the serial ports debugging can, so, simplified the complexity of debugging process. Further, through installing IOT WIFI module and voice module on same circuit board, can reduce user's manufacturing and purchase cost.

Description

Voice and IOT WIFI two-in-one module

Technical Field

The utility model relates to a WIFI technical field especially relates to a two unification modules of pronunciation and IOT WIFI.

Background

At present, the inside most of household electrical appliances is provided with the IOT WIFI module, when needs increase intelligent speech recognition function at the household electrical appliances, then needs add extra pronunciation module. However, in the prior art, the IOT WIFI module is assembled and then independently debugs WIFI signals, the voice module is assembled and then independently debugs serial port communication with an electric control board inside the household appliance, and the IOT WIFI module and the voice module are required to be debugged and then jointly debugged, wherein the communication debugging is to ensure that voice data can be normally and stably transmitted with the IOT WIFI module, but the whole debugging process is very complicated and time-consuming; further, the user purchases IOT WIFI module and pronunciation module respectively and can increase the cost, also can increase the cost of production simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, provide one kind can simplify the debugging process of IOT WIFI module and pronunciation module and can reduce the pronunciation and the two unification modules of IOT WIFI of the cost of user's purchase IOT WIFI module and pronunciation module.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a two unification modules of pronunciation and IOT WIFI, includes:

a circuit board;

the voice module comprises a voice chip, a loudspeaker unit, a microphone unit and a voice processing unit, the voice chip is arranged on the circuit board, and the voice chip is electrically connected with the loudspeaker unit, the microphone unit and the voice processing unit respectively; and

the IOT WIFI module comprises a WIFI chip, a communication unit, a radio frequency unit and an antenna unit, wherein the WIFI chip is arranged on the circuit board, the WIFI chip is electrically connected with the voice chip, and the communication unit, the radio frequency unit and the antenna unit are respectively electrically connected with the WIFI chip.

In one embodiment, the speaker unit includes a first filter circuit, a speaker and a second filter circuit, the first filter circuit includes a capacitor C1, a resistor R1, a resistor R2, a capacitor C2, a capacitor C3 and a resistor R3, a first end of the capacitor C1 is electrically connected to the voice chip, a second end of the capacitor C1 is electrically connected to one end of the resistor R1, the other end of the resistor R1 is grounded, a first end of the resistor R2 is electrically connected to a second end of the capacitor C1, a second end of the resistor R2 is electrically connected to a first end of the capacitor C2, a second end of the capacitor C2 is grounded, a first end of the capacitor C3 is electrically connected to a first end of the capacitor C2, a second end of the capacitor C3 is electrically connected to a first end of the resistor R3, a second end of the resistor R3 is electrically connected to the speaker, the second filter circuit includes a capacitor C4 and a resistor R4, one end of the capacitor C4 is electrically connected with the loudspeaker, the other end of the capacitor C4 is grounded, one end of the resistor R4 is electrically connected with the loudspeaker, and the other end of the resistor R4 is grounded.

In one embodiment, the speaker unit further includes a third filter circuit, the third filter circuit includes a resistor R5, a capacitor C5, a capacitor C6, a capacitor C7, a diode D1, and a diode D2, a first end of the resistor R5 is electrically connected to a second end of the resistor R3, a second end of the resistor R5 is electrically connected to the speaker, a first end of the capacitor C5 is electrically connected to the speaker, a second end of the capacitor C5 is grounded, a first end of the capacitor C6 is electrically connected to a first end of the capacitor C5, a second end of the capacitor C6 is electrically connected to a second end of the capacitor C5, a first end of the capacitor C7 is electrically connected to a first end of the capacitor C6, a second end of the capacitor C7 is electrically connected to a second end of the capacitor C5, a first end of the diode D1 is electrically connected to the speaker D1, a second end of the diode D1 is grounded, one end of the diode D2 is electrically connected to the speaker, and the other end of the diode D2 is grounded.

In one embodiment, the microphone unit includes a capacitor C8, a resistor T1, a resistor R6, a resistor R7, a capacitor C9, and a diode D3, a first end of the capacitor C8 is electrically connected to the voice chip, a second end of the capacitor C8 is electrically connected to the first end of the resistor T1, a second end of the resistor T1 is electrically connected to the voice chip, a first end of the resistor R6 is electrically connected to the first end of the resistor T1, a second end of the resistor R6 is electrically connected to the first end of the resistor R7, a second end of the resistor R7 is grounded, a first end of the capacitor C9 is electrically connected to the first end of the resistor T1, a second end of the capacitor C9 is electrically connected to the first end of the resistor R7, and a terminal of the diode D3 is electrically connected to the second end of the capacitor C8.

In one embodiment, the voice processing unit comprises a capacitor C10 and a processing chip, wherein one end of the capacitor C10 is electrically connected with the processing chip, and the processing chip is electrically connected with the voice chip.

In one embodiment, the communication unit includes a capacitor C11, a capacitor C12, an inductor L1, a capacitor C13, a capacitor C14, a resistor R8, and a capacitor C15, one end of the capacitor C11 is electrically connected to the WIFI chip, the other end of the capacitor C11 is grounded, one end of the capacitor C12 is electrically connected to the WIFI chip, the other end of the capacitor C12 is grounded, the inductor L1 is electrically connected to the WIFI chip, one end of the capacitor C13 is electrically connected to the WIFI chip, the other end of the capacitor C13 is grounded, one end of the capacitor C14 is electrically connected to the first end of the resistor R8, the other end of the capacitor C14 is grounded, the second end of the resistor R8 is electrically connected to the WIFI chip, one end of the capacitor C15 is electrically connected to the WIFI chip, and the other end of the capacitor C15 is grounded.

In one embodiment, the radio frequency unit includes a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a capacitor C21, and a capacitor C22, one end of the capacitor C16 is electrically connected to the WIFI chip, the other end of the capacitor C16 is electrically connected to a first end of the capacitor C17, a second end of the capacitor C17 is grounded, a first end of the capacitor C18 is electrically connected to a first end of the capacitor C17, a second end of the capacitor C18 is electrically connected to one end of the capacitor C19, the other end of the capacitor C19 is grounded, a first end of the capacitor C20 is electrically connected to a second end of the capacitor C18, a second end of the capacitor C20 is electrically connected to a first end of the capacitor C21, a second end of the capacitor C21 is grounded, and the capacitor C22 is electrically connected to a second end of the capacitor C20.

In one embodiment, the voice module further includes a voice crystal unit, the voice crystal unit includes a first crystal oscillator, a capacitor C22 and a capacitor C23, one end of the capacitor C22 is electrically connected to the first crystal oscillator, the other end of the capacitor C22 is electrically connected to a first end of the capacitor C23, and a second end of the capacitor C23 is electrically connected to the first crystal oscillator.

In one embodiment, the IOT WIFI module further includes a WIFI crystal oscillator unit, the WIFI crystal oscillator unit includes a second crystal oscillator, a capacitor C24, and a capacitor C25, one end of the capacitor C24 is electrically connected to the second crystal oscillator, the other end of the capacitor C24 is grounded, one end of the capacitor C25 is connected to the second crystal oscillator, and the other end of the capacitor C25 is grounded.

In one embodiment, the IOT WIFI module further includes a power supply unit electrically connected to the WIFI chip.

The utility model discloses compare in prior art's advantage and beneficial effect as follows:

the utility model relates to a pronunciation and two unification modules of IOT WIFI, this application is through installing IOT WIFI module and voice module respectively on same circuit board for carry out communication debugging in advance between IOT WIFI module and the voice module before assembling to household electrical appliances, the user assembly only need debug the WIFI signal behind household electrical appliances and carry out the serial ports debugging with the automatically controlled board of household electrical appliances can, so, simplified the complexity of debugging process. Furthermore, the IOT WIFI module and the voice module are mounted on the same circuit board, so that on one hand, the production cost can be reduced; on the other hand, the purchase cost of the user can be reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is the utility model discloses an embodiment's pronunciation and the structural schematic diagram of IOT WIFI two unification module.

Fig. 2 is a functional module diagram of the voice and IOT and WIFI two-in-one module according to an embodiment of the present invention.

Fig. 3 is a circuit diagram of an antenna unit according to an embodiment of the present invention.

Fig. 4 is a circuit diagram of a circuit resetting unit according to an embodiment of the present invention.

Fig. 5 is a circuit diagram of a speaker unit according to an embodiment of the present invention.

Fig. 6 is a circuit diagram of a microphone unit according to an embodiment of the present invention.

Fig. 7 is a diagram of a voice processing unit according to an embodiment of the present invention.

Fig. 8 is a circuit diagram of a communication unit according to an embodiment of the present invention.

Fig. 9 is a circuit diagram of a radio frequency unit according to an embodiment of the present invention.

Fig. 10 is a circuit diagram of a voice crystal oscillator unit according to an embodiment of the present invention.

Fig. 11 is a circuit diagram of a WIFI crystal oscillator unit according to an embodiment of the present invention.

Fig. 12 is a circuit diagram of a power supply unit according to an embodiment of the present invention.

Fig. 13 is a circuit diagram of a conversion unit according to an embodiment of the present invention.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a speech and IOT and WIFI two-in-one module 10 includes: circuit board 100, voice module 200 and IOT WIFI module 300, voice module 100 and IOT WIFI module 200 set up respectively on circuit board 100.

Referring to fig. 1, the voice module 200 includes a voice chip 210, a speaker unit 220, a microphone unit 230 and a voice processing unit 240, the voice chip 210 is disposed on the circuit board 100, and the voice chip 210 is electrically connected to the speaker unit 220, the microphone unit 230 and the voice processing unit 240 respectively; the IOT WIFI module 300 includes a WIFI chip 310, a communication unit 320, a radio frequency unit 330, and an antenna unit 340, the WIFI chip 310 is disposed on the circuit board 100, the WIFI chip 310 is electrically connected to the voice chip 210, and the communication unit 320, the radio frequency unit 330, and the antenna unit 340 are electrically connected to the WIFI chip 310 respectively.

It should be noted that the voice module 200 and the IOT WIFI module 300 communicate with each other through a serial port, the voice chip 210 performs a voice recognition function of implementing a natural language, the speaker unit 220 is used to implement power amplification of an audio signal and output and broadcast of sound, the microphone unit 230 is used to implement voice input, and the voice processing unit 240 is used to run an algorithm and firmware for voice processing. Further, the communication unit 320 is used for realizing a household appliance distribution network and network communication, and the radio frequency unit 330 is used for providing a reasonable transceiving transmission line for WIFI.

It should be noted that, the present application only requires protection of the connection relationship between the voice chip 210 and the speaker unit 220, the microphone unit 230, the voice processing unit 240, and the WIFI chip 310, and does not require protection of the internal structure of the voice chip. Meanwhile, the present application also only requires protection of the connection relationship between the WIFI chip 310 and the communication unit 320, the radio frequency unit 330, the antenna unit 340, and the voice chip 210, and does not require protection of the internal structure of the WIFI chip 310.

So, this application is through installing IOT WIFI module 300 and voice module 200 respectively on same circuit board 100 for before assembling to household electrical appliances carry out communication debugging in advance between IOT WIFI module 300 and the voice module 200, the user assembly only need after household electrical appliances debug the WIFI signal and with the automatically controlled board of household electrical appliances carry out the serial ports debugging can, so, the complexity of debugging process has been simplified. Further, by mounting the IOT WIFI module 300 and the voice module 200 on the same circuit board 100, on one hand, the production cost can be reduced; on the other hand, the purchase cost of the user can be reduced.

Further, in an embodiment, referring to fig. 3, the antenna unit 340 includes a capacitor C26, an inductor L2, and a capacitor C27, a first end of the capacitor C26 is electrically connected to the WIFI chip, a second end of the capacitor C26 is grounded, an end of the inductor L2 is electrically connected to a first end of the capacitor C26, another end of the inductor L2 is electrically connected to a first end of the capacitor C27, and a second end of the capacitor C27 is grounded. Among them, the antenna unit 340 plays a role in realizing high-performance signal transmission and reception. Further, referring to fig. 4, the IOT WIFI module 300 further includes a circuit resetting unit 350, the circuit resetting unit 350 includes a resistor R9 and a capacitor C28, one end of the resistor R9 is electrically connected to an external power source, the other end of the resistor R9 is electrically connected to the first end of the capacitor C28, the first end of the capacitor C28 is further electrically connected to the WIFI chip 310, and the second end of the capacitor C28 is grounded. The circuit resetting unit 350 provides a resetting action for the WIFI chip 310, that is, when the power of the entire module is in the power-on process, and the power of the module does not reach the current of the normal operation or the module has a problem in the operation process, the reset button can be manually pressed, so that the WIFI chip 310 can work again.

Referring to fig. 5, in a further embodiment, the speaker unit 220 includes a first filter circuit, a speaker and a second filter circuit, the first filter circuit includes a capacitor C1, a resistor R1, a resistor R2, a capacitor C2, a capacitor C3 and a resistor R3, a first end of the capacitor C1 is electrically connected to the voice chip 210, a second end of the capacitor C1 is electrically connected to one end of the resistor R1, another end of the resistor R1 is grounded, a first end of the resistor R2 is electrically connected to a second end of the capacitor C1, a second end of the resistor R2 is electrically connected to a first end of the capacitor C2, a second end of the capacitor C2 is grounded, a first end of the capacitor C3 is electrically connected to a first end of the capacitor C2, a second end of the capacitor C3 is electrically connected to a first end of the resistor R3, a second end of the resistor R3 is electrically connected to the speaker, the second filter circuit includes a capacitor C82 4 and a resistor R56, one end of the capacitor C4 is electrically connected to the speaker, another end, one end of the resistor R4 is electrically connected to the speaker, and the other end of the resistor R4 is grounded.

Referring to fig. 5, in particular, the speaker unit 220 further includes a third filter circuit, the third filter circuit includes a resistor R5, a capacitor C5, a capacitor C6, a capacitor C7, a diode D1, and a diode D2, a first end of the resistor R5 is electrically connected to a second end of the resistor R3, a second end of the resistor R5 is electrically connected to the speaker, a first end of the capacitor C5 is electrically connected to the speaker, a second end of the capacitor C5 is grounded, a first end of the capacitor C6 is electrically connected to the first end of the capacitor C5, a second end of the capacitor C6 is electrically connected to the second end of the capacitor C5, a first end of the capacitor C7 is electrically connected to the first end of the capacitor C6, a second end of the capacitor C7 is electrically connected to the second end of the capacitor C5, a first end of the diode D1 is electrically connected to the speaker, a second end of the diode D1 is grounded, a first end of the diode D2.

It should be noted that the first filter circuit, the second filter circuit, and the third filter circuit all play a role in filtering out ripples in the circuits, wherein the diode D1 and the diode D2 play a role in electrostatic protection.

Referring to fig. 6, in a further embodiment, the microphone unit 230 includes a capacitor C8, a resistor T1, a resistor R6, a resistor R7, a capacitor C9, and a diode D3, a first end of the capacitor C8 is electrically connected to the voice chip 210, a second end of the capacitor C8 is electrically connected to the first end of the resistor T1, a second end of the resistor T1 is electrically connected to the voice chip, a first end of the resistor R6 is electrically connected to the first end of the resistor T1, a second end of the resistor R6 is electrically connected to the first end of the resistor R7, a second end of the resistor R7 is grounded, a first end of the capacitor C9 is electrically connected to the first end of the resistor T1, a second end of the capacitor C373984 is electrically connected to the first end of the resistor R42, and a first end of the diode D3 is electrically connected to the second end of the capacitor C.

Note that the microphone unit 230 is used to receive voice input of the user. The capacitor C8 is a coupling capacitor, the resistor R6, the resistor R7, and the capacitor C9 are matching circuits of the microphone unit, and are used for matching impedance, and the diode D3 plays a role of electrostatic protection.

Referring to fig. 7, in a further embodiment, the voice processing unit 240 includes a capacitor C10 and a processing chip, one end of the capacitor C10 is electrically connected to the processing chip, and the processing chip is electrically connected to the voice chip.

It should be noted that the processing chip is used for recognizing the voice of the user, and the application only requires to protect the position connection relationship between the processing chip and the capacitor C10, and does not require to protect the structure of the processing chip itself.

Referring to fig. 8, further, in an embodiment, the communication unit 320 includes a capacitor C11, a capacitor C12, an inductor L1, a capacitor C13, a capacitor C14, a resistor R8, and a capacitor C15, one end of the capacitor C11 is electrically connected to the WIFI chip 310, the other end of the capacitor C11 is grounded, one end of the capacitor C12 is electrically connected to the WIFI chip 310, the other end of the capacitor C12 is grounded, the inductor L1 is electrically connected to the WIFI chip 310, one end of the capacitor C13 is electrically connected to the WIFI chip 310, the other end of the capacitor C13 is grounded, one end of the capacitor C14 is electrically connected to the first end of the resistor R8, the other end of the capacitor C14 is grounded, the second end of the resistor R8 is electrically connected to the WIFI chip 310, one end of the capacitor C15 is electrically connected to the WIFI chip 310, and the. It should be noted that the capacitor, the resistor and the inductor in the communication unit 320 mainly play a role in filtering out the ripple in the circuit.

Referring to fig. 9, in an embodiment, the rf unit 330 includes a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a capacitor C21, and a capacitor C22, one end of the capacitor C16 is electrically connected to the WIFI chip 310, the other end of the capacitor C16 is electrically connected to the first end of the capacitor C17, the second end of the capacitor C17 is grounded, the first end of the capacitor C18 is electrically connected to the first end of the capacitor C17, the second end of the capacitor C18 is electrically connected to one end of the capacitor C19, the other end of the capacitor C19 is grounded, the first end of the capacitor C20 is electrically connected to the second end of the capacitor C18, the second end of the capacitor C20 is electrically connected to the first end of the capacitor C21, the second end of the capacitor C21 is grounded, and the capacitor C22 is electrically connected to the second end of the. It should be noted that, the capacitor in the rf unit 330 is a matching impedance circuit, and functions to ensure that the transmission efficiency of the WIFI signal is not attenuated and to perform a filtering function.

Referring to fig. 10, in a further embodiment, the voice module 200 further includes a voice crystal unit 250, the voice crystal unit 250 includes a first crystal oscillator, a capacitor C22 and a capacitor C23, one end of the capacitor C22 is electrically connected to the first crystal oscillator, the other end of the capacitor C22 is electrically connected to a first end of the capacitor C23, and a second end of the capacitor C23 is electrically connected to the first crystal oscillator. It should be noted that the voice crystal unit 250 is used to provide a reference frequency for the voice chip 210.

Referring to fig. 11, in an embodiment, the IOT WIFI module 300 further includes a WIFI crystal oscillator unit 360, the WIFI crystal oscillator unit 360 includes a second crystal oscillator, a capacitor C24 and a capacitor C25, one end of the capacitor C24 is electrically connected to the second crystal oscillator, the other end of the capacitor C24 is grounded, one end of the capacitor C25 is grounded to the second crystal oscillator, and the other end of the capacitor C25 is grounded. It should be noted that the WIFI crystal oscillator unit 360 is configured to provide a reference frequency for the WIFI chip 310.

Referring to fig. 12, in an embodiment, the IOT WIFI module 300 further includes a power unit 370, and the power unit 370 is electrically connected to the WIFI chip 310. It should be noted that the power supply unit 370 is used for supplying power to the whole module. Further, please refer to fig. 13, the IOT WIFI module 300 further includes a conversion unit 380, the conversion unit 380 is electrically connected to the WIFI chip 310 and the voice chip 210, and the conversion unit 370 is configured to convert the 5V UART signal into a 3.3V serial port signal.

Compared with the prior art, the utility model has the advantages of it is following:

above-mentioned pronunciation and two unification modules 10 of IOT WIFI, this application is through installing IOT WIFI module 300 and voice module 200 respectively on same circuit board 100 for before assembling to household electrical appliances carry out communication debugging in advance between IOT WIFI module 300 and the voice module 200, the user assembly only need debug the WIFI signal after household electrical appliances and carry out the serial ports debugging with the automatically controlled board of household electrical appliances can, so, the complexity of debugging process has been simplified. Further, by mounting the IOT WIFI module 300 and the voice module 200 on the same circuit board 100, on one hand, the production cost can be reduced; on the other hand, the purchase cost of the user can be reduced.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a two unification modules of pronunciation and IOT WIFI, its characterized in that includes:

a circuit board;

2. The audio and IOT WIFI two-in-one module according to claim 1, wherein the speaker unit comprises a first filter circuit, a speaker and a second filter circuit, the first filter circuit comprises a capacitor C1, a resistor R1, a resistor R2, a capacitor C2, a capacitor C3 and a resistor R3, a first end of the capacitor C1 is electrically connected to the audio chip, a second end of the capacitor C1 is electrically connected to one end of the resistor R1, the other end of the resistor R1 is grounded, a first end of the resistor R2 is electrically connected to a second end of the capacitor C1, a second end of the resistor R2 is electrically connected to a first end of the capacitor C2, a second end of the capacitor C2 is grounded, a first end of the capacitor C3 is electrically connected to a first end of the capacitor C2, a second end of the capacitor C3 is electrically connected to a first end of the resistor R3, and a second end of the resistor R3 is electrically connected to the speaker, the second filter circuit comprises a capacitor C4 and a resistor R4, one end of the capacitor C4 is electrically connected with the loudspeaker, the other end of the capacitor C4 is grounded, one end of the resistor R4 is electrically connected with the loudspeaker, and the other end of the resistor R4 is grounded.

3. The voice and IOT WIFI two-in-one module according to claim 2, wherein the speaker unit further comprises a third filter circuit, the third filter circuit comprises a resistor R5, a capacitor C5, a capacitor C6, a capacitor C7, a diode D1 and a diode D2, a first end of the resistor R5 is electrically connected to a second end of the resistor R3, a second end of the resistor R5 is electrically connected to the speaker, a first end of the capacitor C5 is electrically connected to the speaker, a second end of the capacitor C5 is grounded, a first end of the capacitor C6 is electrically connected to the first end of the capacitor C5, a second end of the capacitor C6 is electrically connected to the second end of the capacitor C5, a first end of the capacitor C7 is electrically connected to the first end of the capacitor C6, a second end of the capacitor C7 is electrically connected to the second end of the capacitor C5, and a first end of the diode D1 is electrically connected to the speaker, the second terminal of the diode D1 is grounded, one terminal of the diode D2 is electrically connected to the speaker, and the other terminal of the diode D2 is grounded.

4. The voice and IOT WIFI two-in-one module according to claim 1, wherein the microphone unit comprises a capacitor C8, a resistor T1, a resistor R6, a resistor R7, a capacitor C9 and a diode D3, wherein a first end of the capacitor C8 is electrically connected to the voice chip, a second end of the capacitor C8 is electrically connected to a first end of the resistor T1, a second end of the resistor T1 is electrically connected to the voice chip, a first end of the resistor R6 is electrically connected to a first end of the resistor T1, a second end of the resistor R6 is electrically connected to a first end of the resistor R7, a second end of the resistor R7 is grounded, a first end of the capacitor C9 is electrically connected to a first end of the resistor T1, a second end of the capacitor C9 is electrically connected to a first end of the resistor R7, and a terminal of the diode D3 is electrically connected to a second end of the capacitor C8.

5. The voice and IOT WIFI two-in-one module as claimed in claim 1, wherein the voice processing unit comprises a capacitor C10 and a processing chip, one end of the capacitor C10 is electrically connected to the processing chip, and the processing chip is electrically connected to the voice chip.

6. The voice and IOT and WIFI two-in-one module according to claim 1, wherein the communication unit includes a capacitor C11, a capacitor C12, an inductor L1, a capacitor C13, a capacitor C14, a resistor R8, and a capacitor C15, one end of the capacitor C11 is electrically connected to the WIFI chip, the other end of the capacitor C11 is grounded, one end of the capacitor C12 is electrically connected to the WIFI chip, the other end of the capacitor C12 is grounded, the inductor L1 is electrically connected to the WIFI chip, one end of the capacitor C13 is electrically connected to the WIFI chip, the other end of the capacitor C13 is grounded, one end of the capacitor C14 is electrically connected to the first end of the resistor R8, the other end of the capacitor C14 is grounded, the second end of the resistor R8 is electrically connected to the WIFI chip, one end of the capacitor C15 is electrically connected to the WIFI chip, and the other end of the capacitor C15 is grounded.

7. The voice and IOT WIFI two-in-one module according to claim 1, wherein the rf unit comprises a capacitor C16, a capacitor C17, a capacitor C18, a capacitor C19, a capacitor C20, a capacitor C21, and a capacitor C22, one end of the capacitor C16 is electrically connected to the WIFI chip, the other end of the capacitor C16 is electrically connected to a first end of the capacitor C17, a second end of the capacitor C17 is grounded, a first end of the capacitor C18 is electrically connected to a first end of the capacitor C17, a second end of the capacitor C18 is electrically connected to one end of the capacitor C19, the other end of the capacitor C19 is grounded, a first end of the capacitor C20 is electrically connected to a second end of the capacitor C18, a second end of the capacitor C20 is electrically connected to a first end of the capacitor C21, a second end of the capacitor C21 is grounded, and the capacitor C22 is electrically connected to a second end of the capacitor C20.

8. The voice and IOT and WIFI two-in-one module according to claim 1, wherein the voice module further comprises a voice crystal unit, the voice crystal unit comprises a first crystal oscillator, a capacitor C22 and a capacitor C23, one end of the capacitor C22 is electrically connected to the first crystal oscillator, the other end of the capacitor C22 is electrically connected to a first end of the capacitor C23, and a second end of the capacitor C23 is electrically connected to the first crystal oscillator.

9. The voice and IOT and WIFI two-in-one module according to claim 1, wherein the IOT and WIFI module further comprises a WIFI crystal oscillator unit, the WIFI crystal oscillator unit comprises a second crystal oscillator, a capacitor C24 and a capacitor C25, one end of the capacitor C24 is electrically connected to the second crystal oscillator, the other end of the capacitor C24 is grounded, one end of the capacitor C25 is connected to the second crystal oscillator, and the other end of the capacitor C25 is grounded.

10. The voice and IOT-WIFI two-in-one module according to claim 1, wherein the IOT-WIFI module further comprises a power supply unit, and the power supply unit is electrically connected to the WIFI chip.