CN220171468U

CN220171468U - Voice receiver of tablet personal computer

Info

Publication number: CN220171468U
Application number: CN202321456046.5U
Authority: CN
Inventors: 吕玉
Original assignee: Zhongke Microelectronics Technology Shenzhen Co ltd
Current assignee: Zhongke Microelectronics Technology Shenzhen Co ltd
Priority date: 2023-06-08
Filing date: 2023-06-08
Publication date: 2023-12-12
Anticipated expiration: 2033-06-08

Abstract

The utility model discloses a voice receiver of a tablet personal computer, which comprises the tablet personal computer, wherein at least two receivers are arranged on the tablet personal computer, a detachable circuit board is arranged on a shell of the tablet personal computer, each receiver comprises a radio IC module, a PMU power supply module, a main control module and a switch module which are arranged on the circuit board, the main control module is connected with the switch module, the switch module is connected with the radio IC module, the PMU power supply module is connected with the radio IC module, the main control module and the switch module, a containing cavity is formed between the radio IC module and the shell, and a silica gel sleeve for sealing the radio IC module is arranged in the containing cavity. According to the utility model, the main control module is used for controlling the on/off of the switch module and the radio IC module, so that at least two receivers can be controlled to receive radio simultaneously, the radio efficiency is higher, and the radio effect is wider; in addition, the dustproof sealing of the radio IC module is realized through the silica gel sleeve in the accommodating cavity, so that the problems of poor sealing performance and poor radio effect of the receiver of the tablet personal computer in the prior art are solved.

Description

Voice receiver of tablet personal computer

Technical Field

The utility model relates to the technical field of tablet computers, in particular to a voice receiver of a tablet computer.

Background

Tablet computers are common electronic equipment in daily life, are developed based on the mobile internet, and are widely applied to life and work. The number of the existing flat-panel receivers is a single receiver welded, the structural tightness is poor, and the sound receiving effect is poor.

There is thus a need for improvements and improvements in the art.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present utility model aims to provide a voice receiver of a tablet computer, which aims to solve the problems of poor tightness and poor sound receiving effect of a receiver structure of the tablet computer in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a voice receiver of panel computer, includes the panel computer, be provided with two at least receivers on the panel computer, be provided with detachable circuit board on the casing of panel computer, the receiver is including setting up radio IC module, PMU power module, main control module and the switch module on the circuit board, main control module with the switch module is connected, the switch module with radio IC module is connected, PMU power module with radio IC module main control module with the switch module is connected, radio IC module with form between the casing and hold the chamber, hold the intracavity and be provided with and be used for sealedly the silica gel cover on the radio IC module.

The radio IC module comprises a radio IC chip, an inductor, a first resistor, a second resistor, a first capacitor and a second capacitor, wherein the 1 st pin of the radio IC chip is connected with the PMU power supply module through the inductor and is grounded through the first capacitor, the first capacitor and the second capacitor are connected in parallel, the 2 nd pin of the radio IC chip is grounded through the first resistor and is also connected with the PMU power supply module through the second resistor, the 3 rd pin of the radio IC chip is connected with the switch module, the 4 th pin of the radio IC chip is the negative electrode of the radio IC chip, and the 5 th pin, the 6 th pin, the 7 th pin and the 8 th pin of the radio IC chip are grounded.

The switch module comprises an analog switch chip, a third resistor and a third capacitor, wherein the 2 nd pin of the analog switch chip is grounded, the 3 rd pin of the analog switch chip is connected with the 3 rd pin of the radio IC chip, the 5 th pin of the analog switch chip is connected with the PMU power supply module and is grounded through the third capacitor, and the 6 th pin of the analog switch chip is connected with the main control module and is grounded through the third resistor.

The silica gel cover is provided with an accommodating groove for accommodating the radio IC module, and the circuit board is in threaded connection with the shell so as to press the radio IC module into the accommodating groove.

The lower end face of the radio IC module is attached to the bottom face of the accommodating groove.

The accommodating groove is internally provided with a step part, and the radio IC module is provided with a supporting part matched with the step part.

The sound transmission channel is arranged on the silica gel sleeve, one port of the sound transmission channel faces the radio IC module, and the other port of the sound transmission channel faces the sound transmission hole on the shell.

The silica gel cover is provided with the extension, hold the side in chamber be provided with the breach of extension adaptation.

The upper end face of the silica gel sleeve is flush with the upper end face of the accommodating cavity.

The sound transmission channel is L-shaped.

Compared with the prior art, the voice receiver of the tablet personal computer comprises the tablet personal computer, at least two receivers are arranged on the tablet personal computer, a detachable circuit board is arranged on a shell of the tablet personal computer, the receivers comprise a radio IC module, a PMU power supply module, a main control module and a switch module which are arranged on the circuit board, the main control module is connected with the switch module, the switch module is connected with the radio IC module, the PMU power supply module is connected with the radio IC module, the main control module is connected with the switch module, a containing cavity is formed between the radio IC module and the shell, and a silica gel sleeve used for sealing the radio IC module is arranged in the containing cavity. According to the utility model, the main control module is used for controlling the on/off of the switch module and the radio IC module, so that at least two receivers can be controlled to receive radio simultaneously, the radio efficiency is higher, and the radio effect is wider; in addition, the dustproof sealing of the radio IC module is realized through the silica gel sleeve in the accommodating cavity, so that the problems of poor sealing performance and poor radio effect of the receiver of the tablet personal computer in the prior art are solved.

Drawings

Fig. 1 is a circuit block diagram of a voice receiver of a tablet computer according to the present utility model.

Fig. 2 is a schematic circuit diagram of a radio IC module in a voice receiver of a tablet computer according to the present utility model.

Fig. 3 is a schematic circuit diagram of a switch module in a voice receiver of a tablet computer according to the present utility model.

Fig. 4 is a cross-sectional view of a voice receiver of a tablet computer provided by the utility model.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is an exploded view of a voice receiver of a tablet computer according to the present utility model.

Fig. 7 is an enlarged view of a portion B in fig. 6.

Reference numerals and signs

The electronic device comprises a tablet personal computer 1, a shell 11, a sound transmission hole 111, a circuit board 12, a containing cavity 13, a notch 131, a sound receiving IC module 21, a sound receiving IC chip U1, an inductor L, a first resistor R1, a second resistor R2, a first capacitor C1, a second capacitor C2, a supporting part 211, a PMU power supply module 22, a main control module 23, a switch module 24, an analog switch chip U2, a third resistor R3, a third capacitor C3, a silica gel sleeve 31, a sound transmission channel 311, an extension part 312, a containing groove 32 and a step part 321.

Detailed Description

In order to make the objects, technical solutions and effects of the present utility model clearer and more specific, the present utility model will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It is noted that when an element is referred to as being "mounted," "secured," or "disposed" on 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.

It should be noted that, in the embodiments of the present utility model, terms such as left, right, up, and down are merely relative concepts or references to normal use states of the product, and should not be construed as limiting.

The utility model provides a voice receiver of a tablet personal computer, referring to fig. 1-7, which comprises a tablet personal computer 1, wherein at least two receivers are arranged on the tablet personal computer 1, a detachable circuit board 12 is arranged on a shell 11 of the tablet personal computer 1, the receivers comprise a radio IC module 21, a PMU power supply module 22, a main control module 23 and a switch module 24 which are arranged on the circuit board 12, the main control module 23 is connected with the switch module 24, the switch module 24 is connected with the radio IC module 21, the PMU power supply module 22 is connected with the radio IC module 21, the main control module 23 and the switch module 24, a containing cavity 13 is formed between the radio IC module 21 and the shell 11, and a silica gel sleeve 31 for sealing the radio IC module 21 is arranged in the containing cavity 13. According to the utility model, the main control module 23 controls the switch module 24 to be connected or disconnected with the radio IC module 21, so that at least two receivers can be controlled to receive radio simultaneously, the radio efficiency is higher, and the radio effect is wider; in addition, the dustproof sealing of the sound receiving IC module 21 is realized through the silica gel sleeve 31 in the accommodating cavity 13, so that the problems of poor sealing performance and poor sound receiving effect of the receiver of the tablet personal computer 1 in the prior art are solved. The radio IC module 21 is mounted on the circuit board 12 in a patch mode, so that the mounting is simpler than the mounting in a welding mode, and the unstable welding effect is avoided. In the utility model, two receivers are taken as an example for illustration, and the two receivers are respectively arranged close to two sides of the tablet personal computer 1, so that the radio reception range is wide, and the radio reception effect is better.

Further, the radio IC module 21 includes a radio IC chip U1, an inductance L, a first resistor R1, a second resistor R2, a first capacitor C1, and a second capacitor C2, where a 1 st pin of the radio IC chip U1 is connected to the PMU power supply module 22 through the inductance L and is also grounded through the first capacitor C1, and is also grounded through the second capacitor C2, a2 nd pin of the radio IC chip U1 is grounded through the first resistor R1 and is also connected to the PMU power supply module 22 through the second resistor R2, a 3 rd pin of the radio IC chip U1 is connected to the switch module 24, a 4 th pin of the radio IC chip U1 is a negative electrode of the radio IC chip U1, and a 5 th pin, a 6 th pin, a 7 th pin and an 8 th pin of the radio IC chip U1 are grounded.

The PMU power module 22 is of the type MT6357 or other chip capable of performing the same function. The chip model of the main control module 23 is MT8766. The radio IC chip U1 is connected with the ground in parallel through a first capacitor C1 and a second capacitor C2, and the second capacitor C2 has the effects of noise filtering and current stabilizing. The second resistor R2 has a function of stabilizing current. The inductance L has the function of filtering noise. The U1 type of the radio IC chip is MD-DFA261-H10F or other chips capable of realizing the same function. The 1 st pin of the radio IC chip U1 is a VDD pin, the 2 nd pin of the radio IC chip U1 is an L/R pin, the 3 rd pin of the radio IC chip U1 is a CLK pin, the 4 th pin of the radio IC chip U1 is a DATA pin, and the 5 th pin, the 6 th pin, the 7 th pin and the 8 th pin of the radio IC chip U1 are GND pins.

Further, the switch module 24 includes an analog switch chip U2, a third resistor R3 and a third capacitor C3, the 2 nd pin of the analog switch chip U2 is grounded, the 3 rd pin of the analog switch chip U2 is connected to the 3 rd pin of the radio IC chip U1, the 5 th pin of the analog switch chip U2 is connected to the PMU power supply module 22 and is further grounded through the third capacitor C3, and the 6 th pin of the analog switch chip U2 is connected to the main control module 23 and is further grounded through the third resistor R3.

The model of the analog switch chip U2 is WAS3157B or other chips capable of realizing the same function. The 2 nd pin of the analog switch chip U2 is a GND pin, the 3 rd pin of the analog switch chip U2 is a B0 pin, the 4 th pin of the analog switch chip U2 is an A pin, the 5 th pin of the analog switch chip U2 is a VCC pin, and the 6 th pin of the analog switch chip U2 is a SEL pin. The third capacitor C3 is a filter capacitor. The third resistor R3 is a pull-down resistor.

In the utility model, when the main control module 23 outputs a high level to the 6 th pin of the analog switch chip U2, the 3 rd pin of the analog switch chip U2 is conducted with the 3 rd pin of the radio IC chip U1, and the radio IC module 21 can record sound; when the main control module 23 outputs a low level to the 6 th pin of the analog switch chip U2, the 3 rd pin of the analog switch chip U2 is disconnected from the 3 rd pin of the radio IC chip U1, and the radio IC module 21 cannot record a sound. The utility model comprises at least two radio IC modules 21 and two switch modules 24, wherein the two radio IC modules 21 are connected with a main control module 23, and a single radio IC module 21 is respectively connected with the single switch module 24, so that when the main control module 23 outputs high level to one receiver or two receivers, the radio IC modules 21 can be controlled to work in a single-channel or double-channel receiver. The circuit principle of one receiver is only described in the utility model, and the circuit principle of the other receiver is the same as the above-mentioned receiver principle, and the utility model is not repeated.

Further, the silica gel cover 31 is provided with a receiving groove 32 for receiving the radio IC module 21, and the circuit board 12 is screwed on the housing 11, so as to press the radio IC module 21 into the receiving groove 32. The lower end surface of the radio IC module 21 is attached to the bottom surface of the accommodating groove 32. The silica gel cover 31 is installed in holding the intracavity 13, circuit board 12 spiro union is on casing 11, with silica gel cover 31 pressfitting in holding chamber 13 simultaneously make radio reception IC module 21 pressfitting in the holding tank 32 of silica gel cover 31 for the cooperation of radio reception IC module 21 and silica gel cover 31 is inseparabler, has played dustproof and sealed effect.

Further, a step 321 is provided in the accommodating groove, and a support 211 that mates with the step 321 is provided on a side of the sound receiving IC module 21. The step 321 and the support 211 are engaged with each other, so that the sound receiving IC module 21 is more stably mounted in the accommodating groove.

Further, the silica gel cover 31 is provided with a sound transmission channel 311, one port of the sound transmission channel 311 faces the radio IC module 21, and the other port of the sound transmission channel 311 faces the sound transmission hole 111 on the housing 11. The sound is guided through the sound transmission hole 111 and the sound transmission channel 311, so that the sound can be received by the sound receiving IC module 21 after entering the sound transmission channel 311 from the sound transmission hole 111. One port of the sound transmission channel 311 is opposite to the hole on the sound receiving IC module 21, and the other port of the sound transmission channel 311 is opposite to the sound transmission hole 111 on the housing 11, so that the smoothness of sound transmission is ensured, and the sound receiving effect is improved.

Further, an extension portion 312 is provided on the silica gel sleeve 31, and a notch 131 adapted to the extension portion 312 is provided on a side of the accommodating cavity 13. Through the cooperation of extension 312 and breach 131 for silica gel cover 31 can be convenient place in holding chamber 13, has played foolproof effect, ensures that the sound transmission section of thick bamboo on the silica gel cover 31 to another port can be accurate with the alignment of sound transmission hole 111, is favorable to improving the radio reception effect.

Further, the upper end surface of the silica gel sleeve 31 is flush with the upper end surface of the accommodating cavity 13, so that when the circuit board 12 is covered and fastened to the housing 11 by a screw, the circuit board 12 contacts with the upper end surface of the silica gel sleeve 31 and the upper end surface of the accommodating cavity 13, so as to ensure that the silica gel sleeve 31 is tightly combined with the radio IC module 21, and meanwhile, the functions of dust prevention and sealing are achieved.

Further, the sound transmission channel 311 is L-shaped, so as to prevent impurities such as dust from passing through the sound transmission hole 111 and the sound transmission channel 311 to the sound receiving end of the sound receiving IC module 21, and influence the receiving effect.

In summary, the voice receiver of the tablet personal computer provided by the utility model comprises the tablet personal computer, wherein at least two receivers are arranged on the tablet personal computer, a detachable circuit board is arranged on a shell of the tablet personal computer, the receivers comprise a radio IC module, a PMU power supply module, a main control module and a switch module which are arranged on the circuit board, the main control module is connected with the switch module, the switch module is connected with the radio IC module, the PMU power supply module is connected with the radio IC module, the main control module and the switch module, a containing cavity is formed between the radio IC module and the shell, and a silica gel sleeve for sealing the radio IC module is arranged in the containing cavity. According to the utility model, the main control module is used for controlling the on/off of the switch module and the radio IC module, so that at least two receivers can be controlled to receive radio simultaneously, the radio efficiency is higher, and the radio effect is wider; in addition, the dustproof sealing of the radio IC module is realized through the silica gel sleeve in the accommodating cavity, so that the problems of poor sealing performance and poor radio effect of the receiver of the tablet personal computer in the prior art are solved.

It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present utility model and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present utility model as defined in the following claims.

Claims

1. The utility model provides a voice receiver of panel computer, its characterized in that, includes the panel computer, be provided with two at least receivers on the panel computer, be provided with detachable circuit board on the casing of panel computer, the receiver is including setting up radio reception IC module, PMU power module, main control module and the switch module on the circuit board, main control module with the switch module is connected, the switch module with radio reception IC module is connected, PMU power module with radio reception IC module main control module with the switch module is connected, radio reception IC module with form the accommodation chamber between the casing, be provided with in the accommodation chamber and be used for sealedly the silica gel cover on the radio reception IC module.

2. The voice receiver of the tablet computer of claim 1, wherein the sound receiving IC module comprises a sound receiving IC chip, an inductor, a first resistor, a second resistor, a first capacitor and a second capacitor, wherein a 1 st pin of the sound receiving IC chip is connected with the PMU power supply module through the inductor and is grounded through the first capacitor, the first capacitor and the second capacitor are connected in parallel, a2 nd pin of the sound receiving IC chip is grounded through the first resistor and is connected with the PMU power supply module through the second resistor, a 3 rd pin of the sound receiving IC chip is connected with the switch module, a 4 th pin of the sound receiving IC chip is a negative electrode of the sound receiving IC chip, and a 5 th pin, a 6 th pin, a 7 th pin and an 8 th pin of the sound receiving IC chip are grounded.

3. The voice receiver of the tablet computer of claim 2, wherein the switch module comprises an analog switch chip, a third resistor and a third capacitor, a2 nd pin of the analog switch chip is grounded, a 3 rd pin of the analog switch chip is connected with a 3 rd pin of the radio IC chip, a 5 th pin of the analog switch chip is connected with the PMU power supply module and is grounded through the third capacitor, and a 6 th pin of the analog switch chip is connected with the master control module and is grounded through the third resistor.

4. The voice receiver of the tablet personal computer according to claim 1, wherein the silica gel sleeve is provided with a containing groove for containing the radio IC module, and the circuit board is screwed on the housing to press the radio IC module into the containing groove.

5. The voice receiver of the tablet computer of claim 4 wherein the lower end surface of the radio IC module is attached to the bottom surface of the receiving slot.

6. The voice receiver of the tablet computer of claim 4, wherein a step is provided in the receiving groove, and a support portion that mates with the step is provided on the sound-receiving IC module.

7. The voice receiver of the tablet computer of claim 1 wherein a sound transmission channel is provided on the silicone sleeve, one port of the sound transmission channel faces the radio IC module, and the other port of the sound transmission channel faces the sound transmission hole on the housing.

8. The voice receiver of the tablet computer of claim 1, wherein the silicone sleeve is provided with an extension, and a notch adapted to the extension is provided on a side of the accommodating cavity.

9. The voice receiver of the tablet computer of claim 8 wherein the upper end surface of the silicone sleeve is flush with the upper end surface of the receiving cavity.

10. The voice receiver of the tablet computer of claim 7 wherein the sound transmission channel is L-shaped.