Microphone vent hole detection device

Abstract

The utility model provides a microphone vent hole detection device, which is connected with a gas flow detection meter, is used for detecting the gas passing ability of a microphone vent hole of a mobile phone shell, and comprises a working table, a fixed seat, a first detection unit and a second detection unit, the fixed seat is arranged on the working table, the fixed seat is concavely provided with a positioning space for positioning the mobile phone shell, and the first detection unit and the second detection unit are arranged on the working table. The first detection unit is installed on the workbench, the first detection unit is provided with a first detection nozzle, the first detection nozzle is provided with a first air channel, the first air channel is used for being communicated with a first opening of a microphone vent hole, the second detection unit is installed on the workbench, the second detection unit is provided with at least one second detection nozzle, and the second detection nozzle is provided with a second air channel. The second air passage is used for communicating with a second opening of the microphone vent hole, and the first air passage and the second air passage are respectively communicated with a first air pipe and a second air pipe of the air flow detection meter.

Description

Technical Field

[0001] The utility model relates to the field of testing equipment, in particular to a microphone vent detection device. Background Art

[0002] The advent of mobile phones has brought convenience to people. They allow for phone calls and video calls, and voice input through the phone's microphone facilitates information exchange, solving communication problems between people at a distance. However, during the manufacturing process of mobile phone cases, the microphone vent holes are often blocked, preventing them from being fully accessible. Or, defects in the molding of the microphone vent holes can lead to poor air flow through the holes. This can result in the inability to input voice into the microphone after assembly, or the microphone receiving low sound levels, leading to poor performance.

[0003] Therefore, it is necessary to perform gas permeability testing of the microphone vent holes of the mobile phone housing before assembly to screen out defective mobile phone housings. Utility Model Content

[0004] The utility model aims to provide a microphone vent hole detection device for detecting the gas permeability of the microphone vent hole of a mobile phone shell.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A microphone vent detection device is connected to a gas flow detection meter and is used to detect the gas permeability of the microphone vent of a mobile phone housing, comprising:

[0007] Workbench;

[0008] A fixing base is installed on the workbench, and the fixing base is recessed with a positioning space for positioning the mobile phone housing;

[0009] At least one first detection unit, mounted on the workbench, the first detection unit being provided with a first detection nozzle, the first detection nozzle being provided with a first air passage, the first air passage being used to communicate with the first opening of the microphone vent;

[0010] A second detection unit is mounted on the workbench, the second detection unit is provided with at least one second detection nozzle, the second detection nozzle is provided with a second air channel, and the second air channel is used to communicate with the second opening of the microphone vent.

[0011] The first air channel and the second air channel are respectively connected to the first air pipe and the second air pipe of the gas flow detection meter.

[0012] Furthermore, the first detection unit includes a first cylinder fixedly mounted on the workbench, a first detection head mounted on a first telescopic end of the first cylinder, and the first detection nozzle is arranged on an end surface of the first detection head facing the fixed seat.

[0013] Furthermore, the first air channel is connected to the first detection head.

[0014] Furthermore, the first detection head is provided with a stop surface toward the fixing seat. When the first telescopic end of the first cylinder is extended, the first detection nozzle docks with the first opening, and the stop surface abuts against the outer side wall of the fixing seat.

[0015] Furthermore, a gasket for sealing is provided between the first detection nozzle and the first opening.

[0016] Furthermore, the second detection unit includes a fixing frame installed on the workbench, a second detection head slidably arranged on the fixing frame, and the second detection nozzle is arranged on the end surface of the second detection head facing the fixing seat.

[0017] Furthermore, the second air channel is arranged to pass through and communicate with the second detection head.

[0018] Furthermore, the second detection unit includes a second cylinder fixedly mounted on the horizontal frame of the fixed frame, a connecting plate is mounted on the second telescopic end of the second cylinder, and the second detection head is mounted on the connecting plate.

[0019] Furthermore, a sliding rod is provided on the inner side wall of the vertical frame of the fixing frame, and a sliding seat is provided at the end of the connecting plate to slide with the sliding rod, and the sliding seat can slide up and down along the sliding rod.

[0020] Furthermore, the second detection unit includes a fixing plate installed on the lower surface of the connecting plate, and the second detection head is installed on the fixing plate.

[0021] The microphone vent detection device of the utility model detects the gas permeability of the microphone vent of the mobile phone shell, and screens out defective mobile phone shells in advance, thereby avoiding the waste of labor time and materials caused by disassembly and repair due to defective finished products after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a three-dimensional diagram of the microphone vent hole detection device of the present invention in the mold opening state.

[0023] Figure 2 This is a three-dimensional diagram of the microphone vent hole detection device of the present invention in the mold closing state.

[0024] Figure 3 for Figure 2 A partial enlarged view of point A of the microphone vent detection device shown.

[0025] Figure 4 This is a three-dimensional diagram of the first test head of the present invention.

[0026] Figure 5 This is a three-dimensional diagram of the second test head of the present invention.

[0027] Figure 6 It is a three-dimensional diagram of the mobile phone housing of the present invention.

[0028] Figure 7 for Figure 6 A partial enlarged view of point B of the mobile phone housing is shown.

[0029] Figure 8 It is a three-dimensional diagram of the gasket of the present invention.

[0030] Figure 9 This is a schematic diagram of the mold closing state of part of the structure of the microphone vent detection device of the present invention.

[0031] Figure 10 This is a schematic diagram of the mold opening state of part of the structure of the microphone vent detection device of the present invention.

[0032] Figure 11 This is a cross-sectional view of the microphone vent hole detection device of the present invention in the mold closing state.

[0033] Figure 12 for Figure 11 A partial enlarged view of point C of the microphone vent detection device shown. DETAILED DESCRIPTION

[0034] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] The terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "vertical", "horizontal", etc. in the specification and claims of the present utility model indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the clarity of expressing the technical solutions and the convenience of description, and therefore cannot be understood as limiting the present application.

[0036] See also Figures 1-12 The utility model discloses a microphone vent detection device, which is connected to a gas flow detection meter and is used to detect the gas permeability of the microphone vent 101 of the mobile phone housing 100, including:

[0037] Workbench 10;

[0038] A fixing base 20 is mounted on the workbench 10 , and the fixing base 20 is recessed with a positioning space 21 for positioning the mobile phone housing 100 ;

[0039] At least one first detection unit 30 is installed on the workbench 10. The first detection unit 30 is provided with a first detection nozzle 321. The first detection nozzle 321 defines a first air channel 322. The first air channel 322 has a first opening 102 for communicating with the microphone vent 101.

[0040] The second detection unit 50 is installed on the workbench 10. The second detection unit 50 is provided with at least one second detection nozzle 541. The second detection nozzle 541 is provided with a second air channel 542. The second air channel 542 is used to communicate with the second opening 103 of the microphone vent 101.

[0041] The first air channel 322 and the second air channel 542 are respectively connected to the first air pipe and the second air pipe of the gas flow detection meter.

[0042] See also Figure 1-Figure 4 、 Figure 6-Figure 7 and Figure 9-10 The first detection unit 30 includes a first air cylinder 34 fixedly mounted on the workbench 10, a first detection head 32 mounted on the first telescopic end 31 of the first cylinder 34, and the first detection nozzle 321 is arranged on the end surface of the first detection head 32 facing the fixed seat 20. Furthermore, the first air duct 322 is arranged to pass through and connect the first detection head 32. The fixed seat 20 is provided with an avoidance groove 22 connected to the positioning space 21 toward the first detection nozzle 321. When the first detection nozzle 321 is connected to the first opening 102 of the microphone vent 101, the first detection nozzle 321 passes through the avoidance groove 22 and is connected to the mobile phone housing 100 in the positioning space 21.

[0043] See also Figure 3-Figure 4 and Figures 9-12The first detection head 32 is provided with a stop surface 323 facing the fixed base 20. When the first telescopic end 31 of the first cylinder 34 is extended, the first detection nozzle 321 is docked with the first opening 102, and the first air channel 322 is connected to the microphone vent 101. The stop surface 323 abuts against the outer wall of the fixed base 20. Furthermore, to prevent gas leakage at the connection between the first detection nozzle 321 and the first opening 102, a gasket 70 is provided between the first detection nozzle 321 and the first opening 102 for sealing. The gasket 70 has a through hole 71 corresponding to the first opening 102. The first detection nozzle 321 and the first opening 102 are connected through the through hole 71 of the gasket 70.

[0044] See also Figure 1-Figure 2 and Figure 5 The second detection unit 50 includes a fixing frame 40 mounted on the workbench 10, a second detection head 54 slidably mounted on the fixing frame 40, and a second detection nozzle 541 disposed on the end surface of the second detection head 54 facing the fixing base 20. Furthermore, a second air passage 542 is disposed through and in communication with the second detection head 54.

[0045] See also Figure 1 、 Figure 2 and Figure 11 The second detection unit 50 includes a second cylinder 51 fixedly mounted on the horizontal frame 41 of the fixed frame 40. A connecting plate 52 is mounted on the second telescopic end 511 of the second cylinder 51, and the second detection head 54 is mounted on the connecting plate 52. Furthermore, the connecting plate 52 is slidably mounted on the fixed frame 40 via a sliding mechanism 60. In more detail, a sliding rod 61 is provided on the inner side wall of the vertical frame 42 of the fixed frame 40, and a sliding seat 62 is provided at the end of the connecting plate 52 to slide up and down along the sliding rod 61, thereby driving the second detection head 54 to move toward or away from the fixed frame 20.

[0046] See also Figure 1 、 Figure 2 and Figure 11 The second detection unit 50 further includes a fixing plate 53 mounted on the lower surface of the connecting plate 52 , and the second detection head 54 is mounted on the fixing plate 53 .

[0047] Furthermore, the microphone vent detection device also includes a control unit for controlling the first cylinder 34 of the first detection unit 30 and the second cylinder 51 of the second detection unit 50, and a switch button electrically connected to the control unit for controlling the first cylinder 34 of the first detection unit 30 and the second cylinder 51 of the second detection unit 50 to work or stop.

[0048] When the present invention is used, in an initial state, the first telescopic end 31 of the first cylinder 34 of the first detection unit 30 and the second telescopic end 511 of the second cylinder 51 of the second detection unit 50 are both in a retracted state.

[0049] During operation, the mobile phone housing 100 is placed correspondingly in the positioning space 21 of the fixing base 20, and the switch button is pressed to start the control unit to control the first telescopic end 31 of the first cylinder 34 and the second telescopic end 511 of the second cylinder 51 to move and extend outward, and the first detection head 32 and the second detection head 54 move toward the mobile phone housing 100 driven by the first telescopic end 31 and the second telescopic end 511 until the first detection nozzle 321 abuts against the side wall of the mobile phone housing 100 and the first air channel 322 is connected to the first opening 102 of the microphone vent 101, and the second detection nozzle 541 abuts against the upper surface of the mobile phone housing 100 and the second air channel 542 is connected to the second opening 103 of the microphone vent 101.

[0050] At the same time, the second air pipe of the gas flow detection meter provides gas of a certain standard atmospheric pressure value to the second air channel 542. When the air pressure value of the gas in the second air channel 542 passes through the microphone vent 101 from the second opening 103 and enters the first air pipe from the first opening 102 through the first air channel 322 still reaches the air pressure value of the certain standard atmospheric pressure, the gas flow detection meter judges that the result is OK, that is, a qualified product. When the air pressure value of the gas in the second air channel 542 passes through the microphone vent 101 from the second opening 103 and enters the first air pipe from the first opening 102 through the first air channel 322 is lower than the air pressure value of the certain standard atmospheric pressure, the gas flow detection meter judges that the result is NG, that is, an unqualified product, thereby judging the gas permeability of the microphone vent 101.

[0051] Furthermore, the first opening 102 and the second opening 103 of the microphone vent 101 of the mobile phone housing 100 are both provided with filter screens, and the gas flow detection meter is also used to detect the gas permeability of the filter screens.

[0052] In this embodiment, a gasket 70 for sealing is provided between the first detection nozzle 321 and the first opening 102, and a foam for sealing is provided between the second detection nozzle 541 and the second opening 103 to ensure that the air pressure provided by the gas flow detection meter will not cause inaccurate test results or misjudgment due to leakage.

[0053] Next, release the switch button and the control unit stops working, the first telescopic end 31 of the first cylinder 34 and the second telescopic end 511 of the second cylinder 51 retract, and drive the first detection nozzle 321 of the first detection head 32 and the second detection nozzle 541 of the second detection head 54 to leave the mobile phone housing 100, and then take out the detected mobile phone housing 100.

[0054] The above actions are repeated in a cycle to complete batch inspection of the microphone vent holes 101 of the mobile phone housing 100 and classify the selected good products and defective products.

[0055] Given that the mobile phone housing 100 is usually provided with the microphone vent 101 at both the top and the bottom, in this embodiment, the microphone vent detection device includes two first detection units 30 and each first detection unit 30 includes a first detection nozzle 321, the second detection unit 50 includes two second detection nozzles 541, and the first detection nozzle 321 of a first detection unit 30 is corresponding to the second detection nozzle 541 of the second detection unit 50, and each group of the first detection nozzle 321 of the first detection unit 30 and the second detection nozzle 541 of the second detection unit 50 is configured with a gas flow detection table to distinguish the detection results of different microphone vents 101.

[0056] The microphone vent detection device of the present invention detects the gas permeability of the microphone vent 101 of the mobile phone housing 100, thereby screening out defective mobile phone housings 100 in advance, thereby avoiding the waste of labor time and materials caused by disassembly and repair due to defective finished products after assembly.

[0057] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A microphone vent detection device, connected to a gas flow detection meter, for detecting the gas permeability of the microphone vent of a mobile phone housing, characterized in that: include: Workbench; A fixing base is installed on the workbench, and the fixing base is recessed with a positioning space for positioning the mobile phone housing; At least one first detection unit, mounted on the workbench, the first detection unit being provided with a first detection nozzle, the first detection nozzle being provided with a first air passage, the first air passage being used to communicate with the first opening of the microphone vent; A second detection unit is mounted on the workbench, the second detection unit is provided with at least one second detection nozzle, the second detection nozzle is provided with a second air channel, and the second air channel is used to communicate with the second opening of the microphone vent. The first air channel and the second air channel are respectively connected to the first air pipe and the second air pipe of the gas flow detection meter.

2. The microphone vent detection device according to claim 1, wherein: The first detection unit includes a first cylinder fixedly mounted on the workbench, a first detection head mounted on a first telescopic end of the first cylinder, and the first detection nozzle is arranged on an end surface of the first detection head facing the fixed seat.

3. The microphone vent detection device according to claim 2, wherein: The first air channel is connected to the first detection head.

4. The microphone vent detection device according to claim 2, wherein: The first detection head is provided with a stop surface facing the fixing seat. When the first telescopic end of the first cylinder is extended, the first detection nozzle is docked with the first opening, and the stop surface abuts against the outer side wall of the fixing seat.

5. The microphone vent detection device according to claim 1, wherein: A gasket for sealing is provided between the first detection nozzle and the first opening.

6. The microphone vent detection device according to claim 1, wherein: The second detection unit includes a fixing frame installed on the workbench, a second detection head slidably arranged on the fixing frame, and the second detection nozzle is arranged on the end surface of the second detection head facing the fixing seat.

7. The microphone vent detection device according to claim 6, wherein: The second air channel is connected to the second detection head.

8. The microphone vent detection device according to claim 6, wherein: The second detection unit includes a second cylinder fixedly mounted on the horizontal frame of the fixed frame, a connecting plate is mounted on the second telescopic end of the second cylinder, and the second detection head is mounted on the connecting plate.

9. The microphone vent detection device according to claim 8, wherein: The inner side wall of the vertical frame of the fixing frame is provided with a sliding rod, and the end of the connecting plate is provided with a sliding seat that is slidably matched with the sliding rod, and the sliding seat can slide up and down along the sliding rod.

10. The microphone vent detection device according to claim 8, wherein: The second detection unit includes a fixing plate installed on the lower surface of the connecting plate, and the second detection head is installed on the fixing plate.

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