A sound detection device for an electronic device

Abstract

The utility model discloses a sound detection device for electronic equipment, including test box, which is equipped with test cavity, is equipped with test station in test cavity, still installs soundproof cover in test cavity, and the first end of soundproof cover is covered at least on the sound hole, sound acquisition unit is at least partly equipped in test cavity, and its acquisition part is matched with the second end of soundproof cover or in soundproof cover, and the master control unit is electrically connected with sound acquisition unit. The master control unit compares the sound information that electronic equipment sends with the set sound information, and exports corresponding control instruction to remind user whether the electronic equipment is qualified, and the sound propagation in the soundproof cover is more concentrated, reduces the sound loss, can accurately detect the sound decibel, avoids the outside interference, guarantees the collection accuracy of sound information, and can ensure that each electronic equipment to be tested and the consistency of sound acquisition unit test direction, reduces the manual intervention operation, improves the test efficiency and test accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of sound detection technology, and specifically relates to a sound detection device for electronic devices. Background Technology

[0002] Existing electronic devices typically have built-in sound generators. Before leaving the factory, the sound performance of these generators usually needs to be tested, especially in industries with high sound requirements, such as smart doorbells, fire alarms, and gas leak detection. For example, sound detection for gas alarms requires collecting gas concentration data to test whether the alarm can sound promptly and whether the sound output meets requirements.

[0003] When testing the sound performance of electronic devices, the device has a built-in speaker and a control button and sound hole on its casing. Pressing the control button makes the device produce sound. During testing, a person takes the device close to the sound acquisition unit and observes the displayed value on the screen of the sound acquisition unit. The person then compares this value with the set value to determine the sound performance of the electronic device.

[0004] During use, it was found that the test direction and distance of the electronic devices relative to the sound acquisition unit were not consistent during manual testing, resulting in inaccurate sound information collected during testing. In addition, only one electronic device could be tested at a time, leading to low testing efficiency.

[0005] Therefore, it is necessary to design a sound detection device for electronic devices to solve the current technical problems. Summary of the Invention

[0006] To solve at least one of the above-mentioned technical problems, this utility model provides a sound detection device for electronic devices, including a test box with a test cavity, a test station for placing electronic devices inside the test cavity, and a soundproof cover corresponding to the test station installed inside the test cavity, with the first end of the soundproof cover covering at least the sound hole of the electronic device. A sound acquisition unit, at least partially disposed on the test chamber, with its acquisition part fitted onto the second end of the soundproof enclosure or inside the soundproof enclosure, is used to acquire sound information emitted by electronic devices through the soundproof enclosure; The main control unit, which is electrically connected to the sound acquisition unit, is used to compare the received sound information with the set sound information and output the corresponding control commands.

[0007] The main control unit compares the sound information emitted by the electronic device with the set sound information and outputs corresponding control commands to remind the user whether the electronic device's sound output is up to standard. Sound propagation is more concentrated within the soundproof enclosure, reducing sound loss, accurately detecting sound decibels, avoiding external interference, ensuring the accuracy of sound data acquisition, and ensuring consistency between the testing direction of each electronic device under test and the sound acquisition unit. This reduces manual intervention and improves testing efficiency and accuracy.

[0008] Preferably, the test chamber is equipped with a test platform, and multiple test stations are spaced apart on the test platform, with each test station corresponding to a soundproof cover.

[0009] By setting up multiple sound acquisition units and soundproof enclosures to work with the corresponding test stations, multiple test channels can be tested simultaneously to improve testing efficiency.

[0010] Preferably, the distance between the first end of all the soundproof covers and the sound hole on the corresponding electronic device is consistent, and the distance between the acquisition part inside all the soundproof covers and the sound hole on the corresponding electronic device is consistent, so as to ensure the consistency of test data acquisition and test accuracy.

[0011] Preferably, the test box is further provided with a channel for at least one electronic device to enter and exit the test chamber. The channel is connected to the test chamber, and a slide rail is provided inside the test chamber. The test platform is slidably mounted on the slide rail and extends out of the test chamber from the channel or retracts into the test chamber from the channel. The push-pull structure facilitates the insertion and removal of electronic devices, improving ease of use and operational efficiency.

[0012] Preferably, the soundproof cover is installed on the top surface of the test chamber, or the soundproof cover is installed on the test platform.

[0013] Preferably, the sound detection device further includes a sound control device that works with the electronic device to control the electronic device to make it emit sound before or during the test.

[0014] The sound control device is a control switch mounted on or connected to an electronic device. It is suitable for environments where only sound production needs to be tested, and daily use involves simply pressing the control switch to activate the device. Before testing, the electronic device emits sound by pressing the control switch; the device is then placed inside the test chamber for testing, reducing operating costs. Alternatively, the control switch can be located outside the test chamber, allowing all electronic devices to emit sound simultaneously during testing.

[0015] The sound control device includes a gas generator and a gas channel. The gas generator is connected to the test chamber via the gas channel and is electrically connected to the main control unit. This configuration is suitable for environments where timely warnings are needed based on whether the electronic device can detect gas generation. During testing, the non-audible electronic device is placed in the test chamber. The gas generator is then activated to produce gas, which is introduced into the test chamber through the gas channel. The gas collection unit inside the electronic device collects the gas concentration through a collection port on the device. The controller inside the electronic device controls it to emit a sound to test whether the device has collected gas. The detection of sound generation and the detection of sound emission can be performed simultaneously to test different functions of the electronic device, expanding the application range of the detection device.

[0016] Preferably, the testing station is provided with a positioning part for limiting the electronic device. The positioning part is a positioning protrusion or positioning groove that mates with the electronic device, or a magnetic suction component that magnetically connects with the electronic device. The positioning part limits the electronic device to the testing station, positioning it in a fixed direction to ensure accurate alignment between the sound hole and the first end of the soundproof cover, thereby reducing testing errors.

[0017] Preferably, the soundproof enclosure is movably installed inside the test chamber. This facilitates matching different test platforms with electronic devices of different sizes, thereby adapting the movable soundproof enclosure to the position of the electronic device, improving its applicability, reducing structural costs, and ensuring accurate alignment between the soundproof enclosure and the electronic device before testing, further guaranteeing the reliability of the test data.

[0018] Preferably, the soundproof cover is magnetically connected and disposed within the test chamber; a first magnet is mounted on the soundproof cover; a second magnet is provided on the inner wall of the test chamber to magnetically engage with the first magnet. One of the first and second magnets is a magnetic material, and the other is a magnetizable metal magnet; alternatively, both the first and second magnets are magnetic materials. Both methods allow for fine-tuning of the soundproof cover's position, ensuring precise alignment between the soundproof cover and the electronic equipment, thereby improving test accuracy.

[0019] Preferably, the soundproof enclosure is horn-shaped, with a smaller top and a larger bottom. The horn-shaped soundproof enclosure makes the direction of sound propagation more concentrated, and the staggered arrangement of the soundproof enclosure will not affect the uniform flow of gas in the test chamber.

[0020] Preferably, a sealing plate is movably fitted onto the channel opening to open or close the channel opening; The sealing plate is movably installed on the side wall where the channel opening is located, or the sealing plate is installed on the outer end of the test platform. Movably installing the sealing plate at the channel opening ensures that the test chamber is in a closed state during testing, improving the airtightness of the test chamber. Directly installing the sealing plate on the test platform simplifies the structure of the device and improves the ease of operation.

[0021] The shape of the channel opening is adapted to the shape of the test platform, and there is a gap between the two. The sealing plate is adapted to the channel opening. To further ensure airtightness, a sealing structure can also be set on the cover or the periphery of the channel opening.

[0022] Furthermore, the test platform features transparent surfaces at least for the test stations, as well as transparent sealing plates, to facilitate observation of the test chamber by test personnel.

[0023] Preferably, the sound detection device further includes an output unit electrically connected to the main control unit, used to output corresponding test results according to the received control commands, so that the test results can be promptly communicated to the test personnel through the output unit.

[0024] Compared with the prior art, the sound detection device for electronic devices provided by this utility model has the following advantages: by setting a soundproof cover that corresponds to the electronic device in the test box, the electronic device can be positioned, and the sound is introduced into the sound acquisition unit through the soundproof cover. This ensures the consistency of the test direction when each test product is tested in sequence, reduces labor intensity, is more convenient to use, can accurately detect sound decibels, avoids external interference, ensures acquisition accuracy, improves test efficiency, and also improves the universality of the sound detection device. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the sound detection device for electronic devices provided by this utility model when the sealing plate is opened in Embodiment 1. Figure 2 for Figure 1 Structural principle block diagram; Figure 3 for Figure 2 The circuit diagram; Figure 4 for Figure 1 A sectional view; Figure 5 A cross-sectional view of Embodiment 2 of the sound detection device for electronic devices provided by this utility model; Figure 6 for Figure 1 A schematic diagram of the test platform structure; Figure 7 This is a schematic diagram of the electronic device.

[0026] Figure label: 1. Test box; 1a. Channel opening; 2. Test chamber; 3. Test station; 4. Soundproof enclosure; 5. Sound acquisition unit; 6. Main control unit; 7. Test platform; 71. Load-bearing surface; 8. Slide rail; 9. Control switch; 10. Electronic equipment; 10a. Sound hole; 11. Gas generator; 12. Air passage; 13. Sealing plate; 14. Operating unit; 15. Output unit; 16. Start / stop switch; 17. Power supply; 18. Control box. Detailed Implementation

[0027] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.

[0028] This utility model adopts the following technical solution: a sound detection device for electronic devices, suitable for performing sound tests on electronic devices 10. In some embodiments, see the appendix. Figure 7 As shown, the electronic device 10 is equipped with a control switch 9 and a sound hole 10a. At least one sound generator is installed inside the electronic device 10. Before testing, the sound generator is activated by manually pressing the control switch 9. In another embodiment, the electronic device 10 is also equipped with a wireless communication unit that wirelessly connects to a control terminal (e.g., a remote control). During testing, at least one electronic device 10 is remotely controlled by the remote control to activate the sound generator, eliminating the need to press the control switch 9 before testing, making it more convenient to use.

[0029] In this embodiment, the electronic device 10 is provided with a sound hole and a collection port. The electronic device 10 is equipped with a gas collection unit, a controller and a sound generator connected to each other. The collection end of the gas collection unit is connected to the outside air through the collection port. The electronic device 10 is a gas alarm, specifically a smoke alarm. By introducing gas into the gas alarm, the gas collection unit collects the gas concentration. The controller compares the gas concentration with the set gas concentration and controls the sound generator to make a sound.

[0030] like Figure 1-4As shown in Figures 6-7, the sound detection device includes: a test chamber 1, which has a test cavity 2 and a channel 1a for at least electronic device 10 to enter and exit the test cavity 2. The channel 1a is located on the front side of the test cavity 2 and communicates with the test cavity 2. A sealing plate 13 is movably fitted on the channel 1a to open or close the channel 1a. The test cavity 2 has a test station 3 for placing electronic device 10. The test cavity 2 is also equipped with a soundproof cover 4 that corresponds to the test station 3. The first end of the soundproof cover 4 covers at least the sound hole 10a of electronic device 10.

[0031] The sound acquisition unit 5 is at least partially disposed on the test chamber 2, and its acquisition part is fitted to the second end of the soundproof cover 4 or inside the soundproof cover 4, for acquiring sound information emitted by the electronic device 10 through the soundproof cover 4; wherein, the sound acquisition unit 5 is a sound level meter, the first end of the soundproof cover 4 is the bottom of the soundproof cover 4, and the second end of the soundproof cover 4 is the top of the soundproof cover 4.

[0032] The main control unit 6 is electrically connected to the sound acquisition unit 5 and is used to compare the received sound information with the set sound information and output the corresponding control commands.

[0033] like Figure 3 , 4 As shown, in this embodiment, multiple main control units 6 are provided, each electrically connected to a corresponding sound acquisition unit 5 to form multiple test channels. The main control unit 6 is a data processing module that stores preset sound information. It is configured to compare the sound information acquired by the sound acquisition unit 5 with the preset sound information to obtain the detection result of the electronic device 10, and process the detection result to prompt the user. This allows for simultaneous automatic detection of the sound of multiple electronic devices 10, improving testing efficiency and saving manpower.

[0034] The sound detection device also includes a sound control device that works with the electronic device 10 to control the electronic device 10 to emit sound before or during the test.

[0035] In this embodiment, the sound control device includes a gas generator 11 and an air duct 12. The gas generator 11 is connected to the test chamber 2 through the air duct 12, and the gas generator 11 is electrically connected to the main control unit 6. The air duct 12 is installed on the test chamber 1, and at least the gas outlet end of the gas generator 11 is installed inside the air duct 12. The test chamber 2 has openings on both sides, and the two ends of the air duct 12 are connected to the openings of the test chamber 2.

[0036] The gas generator 11 is at least one of a CO generator, a CO2 generator, a smoke generator, and a nitrogen oxide generator. The gas in the gas duct 12 can be a single gas or a mixture of gases.

[0037] By merging the sound detection and smoke verification processes and using multi-channel simultaneous testing, testing efficiency can be greatly improved and labor can be saved. The two ends of the air passage 12 are connected to both sides of the test chamber 2, which can make the gas flow in the test chamber 2 more uniform, avoid gas leakage, and ensure the consistency of data acquisition and testing of each electronic device 10.

[0038] like Figure 7 As shown, in some embodiments, the voice control device is a control switch 9 disposed on the electronic device 10. Alternatively, the control switch 9 is connected to the electronic device 10.

[0039] In another embodiment, the outlet of the gas generator 11 is connected to the gas passage 12.

[0040] To further ensure the uniformity of gas flow and improve testing efficiency, a fan can also be installed inside the gas duct 12.

[0041] The distance between the first end of all soundproof covers 4 and the sound hole 10a on the corresponding electronic device 10 is the same, and the distance between the collecting part at all soundproof covers 4 and the sound hole 10a on the corresponding electronic device 10 is the same. Among them, the soundproof cover 4 is a horn shape with a smaller top and a larger bottom.

[0042] like Figure 1 , 2 As shown in Figures 4 and 6, a test platform 7 is installed inside the test chamber 2, and multiple test stations 3 are spaced apart on the test platform 7, with each test station 3 corresponding to a soundproof cover 4.

[0043] Several test stations 3 are spaced apart in at least one of the first direction (i.e., the X-axis) and the second direction (i.e., the Z-axis) within the test chamber 2, wherein the first direction and the second direction are perpendicular to each other, the gas flow direction is parallel to the first direction, and the test stations 3 have a height difference when spaced apart along the first direction, that is, the test stations 3 are located at different horizontal planes when spaced apart along the first direction.

[0044] When the soundproof enclosures 4 are spaced apart in the first direction, the first ends of two adjacent soundproof enclosures 4 arranged in the first direction have a height difference. The higher soundproof enclosure 4 is positioned facing the gas flow direction, while the lower soundproof enclosure 4 is positioned behind the higher one, further from the airflow inlet. Using soundproof enclosures 4 of different heights physically isolates the sound emitted by the electronic devices 10 at different test stations 3, solving the problem of sound interference that may occur when the electronic devices 10 are close together, and ensuring the effectiveness of the sound acquisition unit 5 and the test channels formed by the soundproof enclosures 4. When the soundproof enclosures 4 are spaced apart in the second direction, the first ends of two adjacent soundproof enclosures 4 arranged in the second direction can be at the same height. When the soundproof enclosures 4 are spaced apart in both the first and second directions, there is a height difference between the first ends of all soundproof enclosures 4 facing the gas flow direction and the first ends of the soundproof enclosures 4 further from the airflow inlet. The first ends of all soundproof enclosures 4 spaced apart in the second direction are set at the same height. This ensures that the placement of multiple electronic devices 10 does not affect the uniform flow of gas within the test chamber 2.

[0045] In this embodiment, a soundproof cover 4 is installed on the top surface of the test chamber 2, and the sound acquisition unit 5 is placed inside the soundproof cover 4. The first end of the soundproof cover 4 is positioned at a distance from the test station 3 to allow the electronic device 10 to be placed in or removed. The distance between the first end of each soundproof cover 4 and the test station 3 remains consistent, enabling simultaneous testing of multiple electronic devices 10. Four test stations 3 are provided on the test platform 7. When the electronic device 10 is placed in the test station 3, there is a gap between the first end of the soundproof cover 4 and the upper surface of the electronic device 10.

[0046] In another embodiment, the soundproof cover 4 is installed on the test platform 7 and has a gap between it and the test station 3 for the electronic device 10 to be put in or taken out. The second end of the soundproof cover 4 covers the acquisition part of the sound acquisition unit 5 and has a gap or abuts against the top surface of the test cavity 2.

[0047] The arrangement of test stations 3 within test chamber 1 provides a uniform and stable flow of smoke into test chamber 2, ensuring consistent smoke concentration throughout chamber 2 and preventing time differences in alarm times for electronic devices 10 due to varying smoke concentrations. This allows qualified electronic devices 10 to simultaneously trigger alarms to verify sound quality. In this configuration, the electronic devices 10 within test chamber 2 can be located on the same horizontal plane or on different horizontal planes with varying heights. Electronic devices 10 at higher positions are closer to the smoke inlet, while those at lower positions are farther away. All electronic devices 10 within test chamber 2 have no overlapping projections on the same horizontal plane. Compared to directly injecting smoke into test chamber 2 and arranging test stations 3 along a straight line in the first direction to trigger alarms, this design allows almost simultaneous alarms from the electronic devices 10, thus improving detection efficiency.

[0048] like Figure 6 As shown, the test platform 7 has at least one bearing surface 71 for setting up the test station 3. In this embodiment, there are two bearing surfaces 71 with a height difference and staggered from each other, so that the test stations 3 on different bearing surfaces 71 are separated from each other in the first direction and vertical direction, and the test stations 3 on the same bearing surface 71 are separated from each other in the second direction, ensuring that the projections of each test station 3 on the same horizontal plane do not overlap, so that each soundproof cover 4 can avoid interference.

[0049] By staggering the different bearing surfaces 71 and cooperating with the corresponding soundproof covers 4, the test stations 3 on different bearing surfaces 71 can be spatially separated from each other, and the test stations 3 on the same bearing surface 71 can also be separated from each other. With the help of the horn-shaped soundproof cover 4, the sound interference caused by the close test distance of multiple electronic devices 10 can be avoided, which affects the sound test accuracy. At the same time, it will not affect the uniform flow of gas in the test chamber 2.

[0050] In this embodiment, the front and rear ends of the two bearing surfaces 71 are connected to form an integrally formed test platform 7. The sealing plate 13 is installed on the outer end of the test platform 7, which improves the reliability of the structural connection. The channel opening 1a is closed at the same time as the test platform 7 is pushed into the test cavity 2. For convenient operation, the sealing plate 13 is provided with an operating part 14 (such as a handle or lever). The sealing plate 13 can also be movably installed on the side wall of the channel opening 1a. Its installation form can be at least one of sliding setting, hinge, snap-fit, and screw connection. After the test platform 7 enters the test cavity 2, the sealing plate 13 is closed.

[0051] In some embodiments, sound-insulating material may also be provided on the outer surface of the soundproof cover 4 to prevent the sounds emitted by different electronic devices 10 from interfering with each other.

[0052] like Figure 1 , 4 As shown, the test chamber 2 is equipped with a slide rail 8, and the test platform 7 is slidably installed on the slide rail 8 and extends out of the test chamber 2 from the channel opening 1a or retracts into the test chamber 2 from the channel opening 1a.

[0053] By redesigning the shapes of the test platform 7, slide rail 8, and soundproof enclosure 4, the interference problem caused by the short testing distance of multiple gas alarms can be further solved.

[0054] In this embodiment, when the test platform 7 is a single-piece structure, at least two slide rails 8 are provided at horizontal intervals and extend along the width direction of the test cavity 2. In some embodiments, when the test platform 7 is a split structure, multiple slide rails 8 are provided and are staggered in the horizontal and vertical directions.

[0055] In other embodiments, the test platform 7 is detachable from the test cavity 2, which facilitates mass production. Before testing, multiple electronic devices 10 to be tested can be placed in the corresponding positions of the test platform 7, and then the test platform 7 can be installed in the test cavity 2 as a whole, which facilitates subsequent testing.

[0056] like Figure 1 , 4 As shown, to prevent the electronic device 10 from moving relative to the test platform 7 during the test, which would affect the accuracy of the sound test, the test station 3 is provided with a positioning part for limiting the electronic device 10. The positioning part is a positioning protrusion or positioning groove that engages with the electronic device 10. In another embodiment, the positioning part is a magnetic suction component that is magnetically connected to the electronic device 10.

[0057] By designing the mating structure between the positioning part and the electronic device 10, the electronic device 10 can be placed on the positioning part in a unique orientation. For example, a protrusion or recess is provided on the positioning groove to form a mark position, and a groove or protrusion is provided at the corresponding position on the gas alarm to further match the mark position.

[0058] The soundproof cover 4 is movably installed inside the test chamber 2. In this embodiment, the soundproof cover 4 is magnetically connected and disposed inside the test chamber 2; a first magnet is installed on the soundproof cover 4; a second magnet is provided on the inner wall of the test chamber 2, which magnetically engages with the first magnet 13. One of the first magnet and the second magnet is a magnet, and the other is a magnetizable metal magnet. In another embodiment, both the first magnet and the second magnet are magnets.

[0059] The sound detection device also includes an output unit 15 electrically connected to the main control unit 6, used to output corresponding test results according to received control commands. The output unit 15 is at least one of a voice player, a display, an indicator light, or an audio-visual prompt.

[0060] In this embodiment, the output unit 15 includes a display and indicator lights. The display shows the collected sound information, and the indicator lights distinguish whether the test result is qualified or unqualified by their color. For example, when the collected sound information is greater than or equal to the set sound information, the condition is met, and the main control unit 6 controls the indicator light to turn green, indicating to the user that the electronic device 10 corresponding to the test channel has passed the sound emission test. When the collected sound information is less than the set sound information, the condition is not met, and the main control unit 6 controls the indicator light to turn red, indicating that the electronic device 10 corresponding to the test channel has failed the sound emission test.

[0061] like Figure 1 , 2 As shown, the sound detection device also includes a power supply 17 that is electrically connected to the main control unit 6, the gas generator 11, and the output unit 15, and a control box 18 installed on the upper part of the test box 1. The main control unit 6, at least part of the sound acquisition unit 5, the output unit 15, and the power supply 17 are installed in the control box 18.

[0062] The sound detection device also includes a start / stop switch 16 electrically connected to the main control unit 6, which is mounted on the test box 1 or the control box 18.

[0063] The start / stop switch 16 can be a manual control switch or an electronic control switch. As one implementation of the electronic control switch, a sensing element electrically connected to the main control unit 6 is installed inside the test chamber 2 or near the channel opening 1a, and a corresponding triggering part is provided on the test platform 7 or the sealing plate 13. In this embodiment, the sensing element can be a microswitch. When the sealing plate 13 is closed, detection is automatically triggered, and the main control unit 6 controls the gas generator 11 to generate gas.

[0064] In another embodiment, the start / stop switch 16 may also be in the form of a combination of a magnet and a magnetic switch.

[0065] Example 2 The difference from Example 1 is that, as Figure 5 As shown, multiple soundproof enclosures 4 are spaced apart from each other. The soundproof enclosures 4 are set at the same height and the distance between the bottom of the soundproof enclosure 4 and the electronic device 10 is the same. Multiple test stations 3 are staggered on the test platform 7. The multiple soundproof enclosures 4 can be spaced apart along the Z-axis, or staggered along the X-axis and spaced apart along the Z-axis, so that the multiple test stations 3 are set on the same horizontal plane, but it can be ensured that the placement of multiple electronic devices 10 will not affect the flow of gas in the test chamber 2.

[0066] The above description is not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A sound detection device for electronic devices, characterized in that, include: The test box (1) is provided with a test cavity (2), and the test cavity (2) is provided with a test station (3) for placing an electronic device (10). The test cavity (2) is also provided with a soundproof cover (4) that corresponds to and cooperates with the test station (3). The first end of the soundproof cover (4) covers at least the sound hole (10a) of the electronic device (10). The sound acquisition unit (5) is at least partially located in the test chamber (2), and its acquisition part is fitted to the second end of the soundproof cover (4) or inside the soundproof cover (4) for acquiring sound information emitted by the electronic device (10) through the soundproof cover (4); The main control unit (6) is electrically connected to the sound acquisition unit (5) and is used to compare the received sound information with the set sound information and output the corresponding control command.

2. The sound detection device for electronic devices as described in claim 1, characterized in that: The test chamber (2) is equipped with a test platform (7), and multiple test stations (3) are spaced apart on the test platform (7), with each test station (3) corresponding to a soundproof cover (4).

3. The sound detection device for electronic devices as described in claim 1 or 2, characterized in that: The distance between the first end of all the soundproof covers (4) and the sound hole (10a) on the corresponding electronic device (10) is consistent, and the distance between the collection part at all the soundproof covers (4) and the sound hole (10a) on the corresponding electronic device (10) is consistent.

4. The sound detection device for electronic devices as described in claim 2, characterized in that: The test box (1) is also provided with a channel (1a) for at least electronic equipment (10) to enter and exit the test chamber (2). The channel (1a) is connected to the test chamber (2). The test chamber (2) is provided with a slide rail (8). The test platform (7) is slidably installed on the slide rail (8) and extends out of the test chamber (2) from the channel (1a) or retracts into the test chamber (2) from the channel (1a).

5. The sound detection device for electronic devices as described in claim 2, characterized in that: The soundproof cover (4) is installed on the top surface of the test chamber (2), or the soundproof cover (4) is installed on the test platform (7).

6. The sound detection device for electronic devices as claimed in claim 1, characterized in that: The sound detection device also includes a sound control device that works in conjunction with the electronic device (10), which is used to control the electronic device (10) to emit sound before or during the test; The sound control device is a control switch (9) installed on the electronic device (10) or a control switch (9) connected to the electronic device (10); or, the sound control device includes a gas generator (11) and an air passage (12), the gas generator (11) is connected to the test chamber (2) through the air passage (12), and the gas generator (11) is electrically connected to the main control unit (6).

7. The sound detection device for electronic devices as described in any one of claims 1-6, characterized in that: The soundproof cover (4) is movably installed inside the test chamber (2).

8. The sound detection device for electronic devices as described in claim 7, characterized in that: The soundproof cover (4) is magnetically connected and disposed inside the test chamber (2); a first magnet is installed on the soundproof cover (4); a second magnet is provided on the inner wall of the test chamber (2) to magnetically cooperate with the first magnet. One of the first magnet and the second magnet is a magnet, and the other is a metal magnet that can be magnetized, or both the first magnet and the second magnet are magnets.

9. The sound detection device for electronic devices as described in any one of claims 1-6, characterized in that: The soundproof cover (4) is a horn shape with a smaller top and a larger bottom.

10. The sound detection device for electronic devices as claimed in claim 4, characterized in that: A sealing plate (13) is movably fitted on the channel opening (1a) to open or close the channel opening (1a); The sealing plate (13) is movably installed on the side wall where the channel opening (1a) is located, or the sealing plate (13) is installed on the outer end of the test platform (7).

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