Sound card

Abstract

The utility model provides a sound card, which is used for being connected with external equipment to realize mutual conversion of sound wave / digital signals, and comprises a shell and a control assembly, wherein the shell is provided with a containing cavity, the shell comprises a face shell, and a control area is arranged on the face shell; the control assembly comprises a circuit board and function keys electrically connected with the circuit board, the circuit board is arranged in the containing cavity, and the function keys are arranged in the control area; wherein the control area comprises a first control area and a second control area, and the heights, protruding out of the face shell, of the function keys arranged in the first control area and the second control area are sequentially reduced. Compared with the prior art, the sound card provided by the utility model is provided with the first control area and the second control area, so that misoperation can be avoided; and the height of the functional keys in the first control area is higher than that of the second control area, so that a user can easily distinguish the functional keys in the two control areas during use, the functional keys to be operated can be quickly identified, and the operation is convenient.

Description

Technical Field

[0001] This application relates to the technical field of external sound card structures, and particularly to a sound card. Background Art

[0002] A sound card, also known as an audio card (referred to as a sound effect card in Hong Kong and Taiwan), is the most basic component of a computer multimedia system and is a hardware device that realizes the mutual conversion between sound waves and digital signals. The basic function of a sound card is to convert the original sound signals from a microphone, tape, optical disc, etc., and output them to sound devices such as headphones, speakers, amplifiers, recorders, or emit the sounds of synthesized musical instruments through the Musical Instrument Digital Interface (MIDI).

[0003] An external sound card is an audio interface device connected to a computer or mobile device through a USB interface. It has the advantages of being easy to use and convenient to move, and is especially suitable for environments that require better sound quality, such as connecting to a laptop. An external sound card can provide richer interfaces and better sound quality, support multiple platform systems such as Windows, Mac, and iOS, and provide multiple interfaces to meet different recording needs.

[0004] Since an external sound card has multiple interfaces to connect multiple external devices simultaneously and needs to implement multiple functions, such as microphone or microphone gain, reverb effect adjustment, output volume adjustment, mute, ducking, monitoring, etc., multiple control keys are required to operate the sound card.

[0005] However, if there are too many control keys and they are not differentiated, it will lead to easy misoperation by users when using, and it will also cause users to be unable to quickly identify the control keys to be operated and their functions when using, resulting in a poor experience for users. Utility Model Content

[0006] The embodiments of this application provide a sound card for connecting external devices to realize the mutual conversion between sound waves and digital signals, including:

[0007] A housing having an accommodation cavity, the housing includes a front shell, and a control area is provided on the front shell;

[0008] A control component, including a circuit board and function keys electrically connected to the circuit board, the circuit board is disposed in the accommodation cavity, and the function keys are disposed in the control area;

[0009] Wherein, the control area includes a first control area and a second control area, and the heights of the function keys disposed in the first control area and the second control area protruding from the front shell decrease in sequence.

[0010] Compared with the prior art, for the sound card provided in the present application, the control area is arranged on the front shell and divided into a first control area and a second control area, which can avoid misoperation; and the height of the function keys in the first control area is higher than that of the second control area, which enables users to easily distinguish the function keys in the two control areas when using, so that the function keys to be operated can be quickly identified during operation, saving time while facilitating operation and improving the user experience.

[0011] In one embodiment, the control area further includes a third control area, and the heights of the function keys arranged in the first control area, the second control area, and the third control area protruding from the front shell decrease in sequence; the third control area is arranged adjacent to both the first control area and the second control area. By setting the third control area and making the height of the function keys lower than those in the first control area and the second control area, the arrangement of the function keys is well-proportioned and they will not affect each other during use, thus facilitating users to distinguish and use.

[0012] In one embodiment, the control area further includes a fourth control area, and the heights of the function keys arranged in the second control area and the fourth control area protruding from the front shell decrease in sequence. By setting the fourth control area and making the height of the function keys lower than those in the first control area and the second control area, the arrangement of the function keys is well-proportioned and they will not affect each other during use, thus facilitating users to distinguish and use.

[0013] In one embodiment, the number of the fourth control areas is two, and they are arranged on the opposite sides of the second control area. The two fourth control areas are located at both ends of the second control area, which can separate the function keys in the fourth control area, facilitating users to quickly identify and distinguish them, and they will not affect each other during use.

[0014] In one embodiment, the first control area and the second control area are not adjacent to each other. The non-adjacent arrangement of the first control area and the second control area can ensure that the function keys in the first control area and the second control area will not affect each other during operation, facilitating users to distinguish and use.

[0015] In one embodiment, the function key includes at least one of a button, a knob, and a fader.

[0016] In one embodiment, the function key includes a button, a knob, and a fader. The knob is arranged in the first control area, the fader is arranged in the second control area, and the button is arranged in the third control area. Different types of function keys are separately arranged in different control areas, which enables quick positioning directly according to the function key type when different function keys need to be manipulated, facilitating use.

[0017] In one embodiment, the button is light-transmissive; the sound card further includes a light-emitting unit electrically connected to the circuit board, the light-emitting unit is disposed in the accommodation cavity, and the light emitted therefrom is conducted through the button to the outside of the housing. By providing the light-emitting unit and making the button light-transmissive, the sound card can be enhanced with a colorful effect, and the user can quickly identify the button in a dark environment, which is convenient for the user to operate; moreover, it can also serve as an indicator.

[0018] In one embodiment, a light-shielding member is provided on the side of the housing facing the accommodation cavity, and the light-shielding member and the circuit board enclose an installation cavity. The light-emitting unit is disposed in the installation cavity, and at least a part of the function button is disposed in the installation cavity. By providing the light-shielding member, the light emitted by the light-emitting unit can be prevented from affecting the light effects of other adjacent buttons.

[0019] In one embodiment, the control assembly further includes an indicator light and / or a battery electrically connected to the circuit board; the indicator light penetrates through the housing and is used to indicate the battery power, or indicate the strength of the signal input from an external device to the sound card or the sound volume; the battery is disposed in the accommodation cavity. By providing the battery, the user can continue to use the sound card without an external power supply; by providing the indicator light, the state of the sound card can be reflected, which is convenient for the user to adjust according to the usage situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 is a perspective view of the sound card provided by the embodiment of the present application;

[0022] Figure 2 is a perspective view of the sound card provided by the embodiment of the present application from another angle;

[0023] Figure 3 is an exploded view of the sound card provided by the embodiment of the present application;

[0024] Figure 4 is an exploded view of the sound card provided by the embodiment of the present application from another angle;

[0025] Figure 5 is Figure 1 a schematic diagram of the control area on the front shell of the sound card shown;

[0026] Figure 6 is Figure 1Schematic cross-sectional view of the sound card shown along line V-V

[0027] Description of the reference numerals:

[0028] 100, sound card; 10, housing; 10a, accommodation cavity; 10d, installation cavity; 11, front shell; 12, bottom shell; 14, second light-shielding member; 15, second light-guiding member; 16, third light-shielding member; 17, fourth light-shielding member; 11a, light-transmitting gap; 21, circuit board; 23, first indicator light; 24, battery; 25, second indicator light; 28, power button; 221, button; 222, knob; 223, fader; 32, light-emitting unit; 51, microphone interface; 52, headset interface; 53, accompaniment interface; 54, headphone interface; 55, line output interface; 56, data interface; 57, power interface; 1a, first control area; 1b, second control area; 1c, third control area; 1d, fourth control area. Detailed implementation manners

[0029] For the convenience of understanding the present application, the present application will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present application can be understood more thoroughly and comprehensively.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "inner", "outer", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only embodiments.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs. The terms used in the specification of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0032] Please refer to Figure 1 and Figure 2 , which shows perspective views of the sound card 100 provided by the embodiment of the present application from two angles. The sound card 100 provided by the embodiment of the present application is used to connect to external devices to realize the mutual conversion of sound waves / digital signals, where the external devices include but are not limited to electronic devices such as microphones, computers, tablets, mobile phones, etc.

[0033] Please refer toFigure 3 , Figure 4 and Figure 5 , the sound card 100 includes a housing 10 and a control component; wherein, the housing has a receiving cavity 10a, the housing 10 includes a front shell 11, and a control area is provided on the front shell 11; the control component includes a circuit board 21 and function keys electrically connected to the circuit board 21, the circuit board 21 is disposed in the receiving cavity 10a, and the function keys are disposed in the control area; wherein, the control area includes a first control area 1a and a second control area 1b, and the heights of the function keys disposed in the first control area 1a and the second control area 1b protruding from the front shell 11 decrease in sequence.

[0034] Compared with the prior art, for the sound card 100 provided in this application, by providing the control area on the front shell 11 and dividing the control area into a first control area 1a and a second control area 1b, misoperation can be avoided; and the height of the function keys in the first control area 1a is higher than that of the second control area 1b, which enables the user to easily distinguish the function keys in the two control areas when using, so that the function key to be operated can be quickly identified during operation, saving time while facilitating operation and enhancing the user experience.

[0035] In this embodiment, the housing 10 includes a front shell 11 and a bottom shell 12, and the front shell 11 and the bottom shell 12 are connected to form the receiving cavity 10a. The function keys are disposed on the housing 10 and exposed outside the housing 10, and are electrically connected to the circuit board 21, and are used to adjust the signal amplification degree of the signal input into the sound card 100 and / or the signal intensity output by the sound card 100, and / or turn on or off the mute function of the sound card 100. Setting the function keys can better control or adjust the sound card 100 and improve the use efficiency.

[0036] Specifically, the function keys include a button 221, a knob 222, and a fader 223. The function keys are all passed through the holes on the front shell 11 and exposed outside the housing 10 for the user to operate such as pressing, rotating, pushing and pulling.

[0037] Please refer to Figure 5 , in this embodiment, four control areas are provided on the front shell 11, namely a first control area 1a, a second control area 1b, a third control area 1c, and a fourth control area 1d; the first control area 1a and the third control area 1c are adjacent to each other, the second control area 1b and the third control area 1c are adjacent to each other, the first control area 1a and the second control area 1b are not adjacent, there are 2 fourth control areas 1d, which are respectively disposed at both ends of the second control area 1b, and one of the fourth control areas 1d is adjacent to the first control area 1a, and the other fourth control area 1d is adjacent to the third control area 1c.

[0038] Among them, the knob 222 is arranged in the first control area 1a, and the first control area 1a is located in the upper part of the front shell 11; the fader 223 is arranged in the second control area 1b, and the second control area 1b is arranged in the left part of the front shell 11; some of the buttons 221 are arranged in the third control area 1c, and the third control area 1c is arranged in the right part; some of the buttons 221 are arranged in the fourth control area 1d. There are two fourth control areas 1d, which are arranged at the opposite ends of the second control area 1b, specifically at the upper and lower ends of the second control area 1b.

[0039] Specifically, the height of the knob 222 protruding from the front shell 11 is the highest, followed by the fader 223, and finally the button 221. In this embodiment, the height of the button 221 protruding from the front shell 11 is consistent, that is, the height of the button 221 in the third control area 1c and the fourth control area 1d protruding from the front shell 11 is the same. Of course, in other embodiments, the height of the button 221 in the third control area 1c and the fourth control area 1d protruding from the front shell 11 may also be different. By arranging the function keys in the four control areas on the front shell 11 in this way, the function keys on the front shell 11 can be arranged in a scattered and orderly manner, and will not affect each other during use, thus facilitating the user to distinguish and use. For example, when the knob 222 needs to be rotated, the highest first control area 1a can be directly found to operate the knob 222; when the fader 223 needs to be pushed or pulled, the highest fader 223 can be directly found in the second controller on the left to operate; when pressing and controlling is required, the third control area 1c or the fourth control area 1d with the lowest function key can be directly found.

[0040] In order to better distinguish the function keys, in this embodiment, the height of the part of the housing 10 near the first control area 1a is higher than the height of the part of the housing 10 away from the fourth control area 1d of the first control area 1a, that is, in this embodiment, the front of the housing 10 is low and the back is high, so that the height of the knob 222 in the last of the first control area 1a is higher, and the part where the button 221 is located is relatively lower. Thus, when the user needs to operate the knob 222, the first control area 1a can be located in the first time, and when the button 221 needs to be operated, the third control area 1c or the fourth control area 1d can be located in the first time.

[0041] In this embodiment, the number of the knobs 222 is 3, the number of the faders 223 is 2, and the number of the buttons 221 is 13. Among them, 9 buttons 221 are arranged in the third control area 1c in a nine-square grid pattern, and the remaining 4 buttons 221 are respectively arranged in two fourth control areas 1d in pairs.

[0042] For the convenience of understanding, each function key will be briefly described in this embodiment.

[0043] The functions of the two faders 223 are respectively used to control the volume of the microphone or accompaniment connected to the sound card 100. For example, one controls the volume of the XLR microphone, and the other controls the accompaniment audio volume of Bluetooth input, 3.5mm input, and USB-C downstream.

[0044] One of the knobs 222 is used to control the Gain microphone gain, such as controlling the gain of the XLR microphone; one knob 222 controls the Reverb, specifically, for example, controlling the strength of the reverb effect, which is turned off when turned to the far left; one knob 222 controls the Headphones, specifically, for example, controlling the volume of the "headphone" and "earphone" interfaces through the knob 222.

[0045] The buttons 221 located in the fourth control area 1d are respectively used to control functions such as microphone mute, accompaniment mute, microphone power switch, and the opening and closing of the Bluetooth accompaniment connection function.

[0046] The buttons 221 located in the third control area 1c are respectively used for functions such as the original sound cancellation switch (ducking), monitoring switch (internal anti-switch), voice-changing mode, noise reduction function, and 4 custom function buttons 221, which can customize functions such as light brightness, recording, and clearing recordings.

[0047] To increase the dazzling effect and also to be able to see the buttons 221 in a dark environment for easy user operation, the buttons 221 have light transmittance. The sound card includes a lighting unit 32 electrically connected to the circuit board 21. The lighting unit 32 is disposed in the accommodation cavity 10a and the light emitted is conducted to the outside of the housing 10 through the function keys. Specifically, the lighting unit 32 is an LED lamp bead that can emit various colors of light. The lighting unit 32 is disposed on the side of the circuit board 21 facing the buttons 221. Since the number of buttons 221 is relatively large, the number of the lighting units 32 is set corresponding to the buttons 221, so that each button 221 can be light-transmitting.

[0048] Please refer to Figure 3 and Figure 6, since the number of the keys 221 and the light-emitting units 32 is large and they are arranged adjacent to each other, in order to prevent the light emitted by the light-emitting units 32 from affecting the light effects of other adjacent keys 221, a second light-shielding member 14 is provided on the side of the front shell 11 facing the accommodation cavity 10a. The second light-shielding member 14 is a baffle. The second light-shielding member 14 and the circuit board 21 enclose an installation cavity 10d. The light-emitting units 32 are arranged in the installation cavity 10d, and at least part of the function keys is arranged in the installation cavity 10d. In this embodiment, part of the structure of the key 221 is arranged between the second light-shielding member 14 and the circuit board 21, so as to separate the two and prevent the second light-shielding member 14 from damaging the circuit board 21. By providing the second light-shielding member 14, the light emitted by the light-emitting units 32 can be limited in the installation cavity 10d where they are located. In this way, the light emitted by the light-emitting units 32 can only be transmitted out of the housing 10 through the keys 221 installed in this installation cavity 10d.

[0049] Through the color of the light that the light-emitting unit 32 can emit, the key 221 can transmit different colors of light, so that when the key 221 is pressed and manipulated, it can present different colors, and thus can also play an indicating role. For example, for the key 221 that controls the microphone to be muted, when it is pressed, a red light effect is displayed, which means that the microphone has been muted. When the mute is released by pressing again, the red light effect on the key 221 disappears, indicating that the mute has been released. Since the number of keys 221 is large, the relationship between the keys 221 and the corresponding lighting effects will not be listed one by one in this application. In this embodiment, the light-emitting unit 32 can not only enable the key 221 to transmit different lighting effects, increasing the lighting effect of the sound card 100, but also play a prompting role to indicate the state of the function corresponding to the key 221 after it is pressed.

[0050] Please refer to Figure 3 and Figure 4 , in this embodiment, the control assembly further includes a first indicator light 23 and a battery 24 that are electrically connected to the circuit board 21. The first indicator light 23 penetrates through the front shell 11 and is used to display the power of the battery 24; specifically, the first indicator light 23 is arranged at one end of the front shell 11 close to the first control area 1a and is arranged side by side with the knob 222. The battery 24 is arranged in the accommodation cavity 10a.

[0051] In the sound card 100 provided in this embodiment, the number of the first indicators 23 is multiple. Taking 5 as an example for illustration: when the battery power of the battery 24 is greater than 75%, 4 first indicators 23 light up; when the battery power of the battery 24 is less than 75% and greater than or equal to 50%, 3 first indicators 23 light up; when the battery power of the battery 24 is less than 50% and greater than 25%, 2 first indicators 23 light up; when the battery power of the battery 24 is less than or equal to 25%, 1 first indicator 23 lights up. In other embodiments, other indication forms may also be adopted. For example, multiple first indicators 23 are divided into 4 segments, and the current battery power of the battery 24 is displayed in a columnar form, respectively representing 20%, 40%, 60%, and 80% of the battery power of the battery 24. The specific indication form is not specifically limited in this application.

[0052] To prevent the light emitted by the first indicator 23 from affecting the light effect of the surrounding keys 221, a third light-shielding member 16 is further provided outside the first indicator 23. The third light-shielding member 16 is disposed around the first indicator 23 and abuts against the front shell 11 and the circuit board 21. The first indicator 23 is disposed on the circuit board 21, so as to ensure that the light of the first indicator 23 can only be transmitted to the outside through the front shell 11.

[0053] Since the main function of the fader 223 is to control the volume, in order to more intuitively display the magnitude of the volume adjusted by the fader 223, in the embodiment of this application, the control assembly further includes a second indicator 25, and the second indicator 25 is electrically connected to the circuit board 21. Specifically, it is disposed on one side of the circuit board 21 facing the front shell 11 and is close to the fader 223. Specifically, the second indicator 25 is disposed on the circuit board 21 between two faders 223. The second indicator 25 is an LED lamp bead and can emit various colors of light. A light-transmitting gap 11a is provided on the front shell 11 at a position corresponding to the second indicator 25, so that the light emitted by the second indicator 25 can be transmitted out of the front shell 11 through the light-transmitting gap 11a. The second indicators 25 are two and are respectively disposed corresponding to two faders 223. The light emitted by the second indicator 25 can indicate the volume magnitude, such as indicating the strength of the signal of a microphone or a microphone, and different colors are used to indicate whether there is overload.

[0054] In order to make the light emitted by the second indicator light 25 softer, a second light guide member 15 is provided in the light-transmitting gap 11a. The second light guide member 15 is a light-transmitting rubber strip, which can transmit relatively soft light and make users more comfortable when observing. At the same time, in order to prevent the light emitted by the second indicator light 25 from affecting the surrounding function keys, a fourth light-shielding member 17 is further provided between the front shell 11 and the circuit board 21. The fourth light-shielding member 17 is disposed around the second indicator light 25, and the second light guide member 15 is disposed on the side of the fourth light-shielding member 17 facing the front shell 11, so as to guide the light emitted by the second indicator light 25 out of the front shell 11 through the second light guide member 15.

[0055] Please refer to Figure 2 , Figure 3 and Figure 4 , the sound card 100 includes a port assembly. The port assembly is electrically connected to the circuit board 21 and is used to connect the external device. Specifically, the port assembly includes a microphone interface 51, an earphone and microphone interface 52, an accompaniment interface 53, a headphone interface 54, a line output interface 55, a data interface 56, and a power interface 57. The port assembly is all passed through the openings in the side plates of the housing 10.

[0056] Among them, the microphone interface 51 is a XLR or 6.35mm universal microphone interface, and supports the input of a dynamic microphone with an XLR connector or a 6.35mm plug.

[0057] The earphone and microphone interface 52 supports the input of mobile phones and gaming earphones with a 3.5mm TRRS plug; it has an insertion detection function, and automatically shields the XLR signal input when a four-section earphone is inserted; if a three-section headphone and other non-earphone devices are inserted, the XLR / 6.35mm microphone interface 51 is still used as the audio input.

[0058] The accompaniment interface 53 is used to connect the audio signals of external audio devices, such as mobile phones, tablet computers, decoders, players, etc.; it supports audio playback devices such as mobile phones and MP3s to transmit audio signals into the sound card 100 through an AUX audio cable.

[0059] The headphone interface 54 supports mobile phones / gaming earphones (TRRS plugs) and ordinary headphones (TRS plugs). After connecting to the sound card 100, it can monitor the sounds of various audio channels on the sound card 100.

[0060] The line output interface 55 is a 3.5mm unidirectional stereo output interface, which is used to connect speakers and other audio devices.

[0061] The data interface 56 is a USB-C data interface 56, which is used for the up and down transmission of audio signals; the data interface 56 can also be used as the power supply interface of the sound card 100.

[0062] The power supply interface 57 is a DC power supply interface 57, which supplies power to the sound card 100.

[0063] In this embodiment, when the earphone and microphone interface 52 and the headphone interface 54 are used simultaneously, sound outputs are both available, which improves the applicable range of the sound card 100 product and enhances the user experience.

[0064] In this embodiment, the control component further includes a power switch 28. The power switch 28 is passed through an opening in the side plate of the housing 10 and is electrically connected to the circuit board 21, and is used to control the power on and off of the sound card 100.

[0065] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification. The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A sound card for connecting to external devices to achieve mutual conversion of acoustic / digital signals, characterized in that, Comprising: A housing having a receiving cavity, the housing including a front cover, and a control area is provided on the front cover; A control component including a circuit board and function keys electrically connected to the circuit board, the circuit board is disposed in the receiving cavity, and the function keys are disposed in the control area; Wherein, the control area includes a first control area and a second control area, and the heights of the function keys disposed in the first control area and the second control area protruding from the front cover decrease in sequence.

2. The sound card according to claim 1, characterized in that, The control area further includes a third control area, and the heights of the function keys disposed in the first control area, the second control area, and the third control area protruding from the front cover decrease in sequence; the third control area is adjacent to both the first control area and the second control area.

3. The sound card according to claim 1 or 2, characterized in that, The control area further includes a fourth control area, and the heights of the function keys disposed in the second control area and the fourth control area protruding from the front cover decrease in sequence.

4. The sound card according to claim 3, characterized in that, The number of the fourth control areas is two, and they are disposed on opposite sides of the second control area.

5. The sound card according to claim 1 or 2, characterized in that, The first control area and the second control area are not adjacent to each other.

6. The sound card according to claim 1, characterized in that, The function keys include at least one of a button, a knob, and a fader.

7. The sound card according to claim 2, wherein, The function keys include a button, a knob, and a fader, the knob is disposed in the first control area, the fader is disposed in the second control area, and the button is disposed in the third control area.

8. The sound card according to claim 7, characterized in that, The button has light transmissivity; the sound card further includes a light emitting unit electrically connected to the circuit board, the light emitting unit is disposed in the receiving cavity and the light emitted therefrom is conducted to the outside of the housing through the button.

9. The sound card according to claim 8, characterized in that, A light shielding member is provided on a side of the housing facing the receiving cavity, and the light shielding member and the circuit board enclose to form a mounting cavity, the light emitting unit is disposed in the mounting cavity, and at least a part of the function keys is disposed in the mounting cavity.

10. The sound card according to claim 1, wherein The control component further includes an indicator light and / or a battery electrically connected to the circuit board; the indicator light penetrates through the housing and is used to indicate the power of the battery, or indicate the strength of the signal input from an external device to the sound card or the volume of the sound; the battery is disposed in the receiving cavity.

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