Device and method for measuring pressure distribution of earphone pressure mask clamp

Abstract

The present invention provides a device and method for measuring the clamping pressure distribution of an earphone pressure mask, comprising a base frame and a first measuring piece and a second measuring piece slidably connected to the base frame, wherein the first measuring piece and the second measuring piece are spaced apart, and a first pressure test assembly is provided at one end of the first measuring piece away from the second measuring piece, and a second pressure test assembly is provided at one end of the second measuring piece away from the first measuring piece; wherein two earphone heads to be tested of the earphone to be tested are respectively abutted against the first pressure test assembly and the second pressure test assembly to measure the clamping pressure data of the mask to be tested. In the above manner, by abutting the earphone heads on both sides of the earphone to be tested against the first pressure test assembly and the second pressure test assembly respectively, the pressure distribution of the first pressure test assembly and the second pressure test assembly can be obtained, and then the clamping pressure value of the corresponding part of the earphone head can be adjusted to a comfortable level for the user to wear.

Description

Technical Field

[0001] The present invention relates to the technical field of earphone manufacturing, and in particular to an earphone pressure mask clamp pressure distribution measuring device and method. Background Art

[0002] With the rapid development of contemporary society, smart wearable devices, such as smart headphones, have gradually been widely used.

[0003] Different headphone headbands have different tightness. If the headband is too loose, the headphone clamp pressure is insufficient, the wearer is unstable, and the headphone is easy to fall off when it is hit. If the headband is too tight, the clamp pressure is too high, affecting the wearing comfort. Currently, when producing headphones, only a simple test of the tightness of the headband is performed, and no targeted test is performed on the force applied by the headphone head to the user, so the stability and comfort of the user's wearing cannot be guaranteed. Summary of the invention

[0004] The embodiment of the present invention provides a device for measuring pressure distribution of an earphone pressure mask clamp, which is used to solve the problem in the prior art that the force applied by the earphone head on the user cannot be known and thus the stability and comfort of the user when wearing the earphone cannot be guaranteed.

[0005] An embodiment of the present invention provides a headphone pressure mask clamp pressure distribution measurement device, comprising: a base frame;

[0006] A first measuring piece and a second measuring piece are slidably connected to the base frame, the first measuring piece and the second measuring piece are spaced apart, a first pressure testing assembly is provided at one end of the first measuring piece away from the second measuring piece, and a second pressure testing assembly is provided at one end of the second measuring piece away from the first measuring piece; wherein,

[0007] The two earphone heads to be tested of the earphone to be tested are respectively abutted against the first pressure testing assembly and the second pressure testing assembly to measure the clamping pressure data of the cover to be tested.

[0008] According to an earphone pressure cover clamp pressure distribution measuring device according to an embodiment of the present invention, the first pressure testing assembly and the second pressure testing assembly include a plurality of pressure sensors, and the plurality of pressure sensors of the first pressure testing assembly and the plurality of pressure sensors of the second pressure testing assembly are arranged in an array.

[0009] According to an earphone pressure mask clamp pressure distribution measurement device of an embodiment of the present invention, the first pressure test assembly comprises a first bottom plate and a first test plate, the pressure sensor is located on the first test plate, and the first bottom plate is slidably connected to the bottom frame;

[0010] The second pressure test assembly includes a second bottom plate and a second test plate, the pressure sensor is located on the second test plate, and the second bottom plate is slidably connected to the base frame.

[0011] According to an earphone pressure mask clamp pressure distribution measuring device according to one embodiment of the present invention, a first locking member is provided on the first base plate, and the first locking member is used to limit the sliding of the first base plate. A second locking member is provided on the second base plate, and the second locking member is used to limit the sliding of the second base plate.

[0012] According to an earphone pressure mask clamp pressure distribution measuring device according to an embodiment of the present invention, a first limiting hole is provided on the first bottom plate, and the first locking member is adapted to the first limiting hole;

[0013] The second bottom plate is provided with a second limiting hole, and the second locking member is matched with the second limiting hole.

[0014] According to an earphone pressure mask clamp pressure distribution measuring device according to an embodiment of the present invention, the first limiting hole and the second limiting hole are threaded holes, and the first locking member and the second locking member are screws adapted to the threaded holes.

[0015] According to an embodiment of the present invention, the earphone pressure mask clamp pressure distribution measuring device also includes a support frame connected to the base frame, located between the first measuring piece and the second measuring piece, and the sliding direction of the first measuring piece and the second measuring piece is toward or away from the support frame.

[0016] According to an earphone pressure mask clamp pressure distribution measuring device according to an embodiment of the present invention,

[0017] One of the bottom of the base frame and the first measuring member is provided with at least one slideway, and the other of the bottom of the base frame and the first measuring member is provided with a first sliding block adapted to the slideway;

[0018] One of the bottom of the base frame and the second measuring member is provided with at least one slideway, and the other of the bottom of the base frame and the second measuring member is provided with a second sliding block matched with the slideway.

[0019] According to an earphone pressure mask clamp pressure distribution measuring device of an embodiment of the present invention, the number of the slideways is 2, and the number of the first slider and the second slider are both 2;

[0020] The extending direction of the slideway is consistent with the direction of the first measuring member and the second measuring member toward the support frame.

[0021] The embodiment of the present invention also provides a measurement method using the above-mentioned earphone pressure mask clamp pressure distribution test device, comprising: calibrating the ranges of the first pressure test assembly and the second pressure test assembly provided on the first measuring piece and the second measuring piece;

[0022] The two earphone heads of the earphone to be tested are respectively placed against the first pressure testing assembly and the second pressure testing assembly to measure the clamping pressure data of the cover to be tested.

[0023] The earphone pressure cover clamping pressure distribution measuring device and method provided in the embodiments of the present invention include a base frame, a first measuring piece and a second measuring piece. The earphone heads on both sides of the earphone to be tested can be respectively abutted against a first pressure testing component and a second pressure testing component, so as to measure the pressure distribution of the earphones applied on both sides of the user's head when the earphones to be tested are worn by the user. Therefore, the clamping pressure of the earphone to be tested can be adjusted accordingly according to the pressure distribution of the first pressure testing component and the second pressure testing component to adjust the clamping pressure value of the earphone cover to a more comfortable value for the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of the headphone pressure mask clamp pressure distribution measuring device of the present invention;

[0026] Figure 2 An exploded view of a base frame and a first measuring piece and a second measuring piece of an embodiment of a pressure distribution measuring device for an earphone pressure mask clamp of the present invention;

[0027] Figure 3 An exploded view of the cooperation between the calibration plate and the second test piece of the present invention;

[0028] Figure 4 is an array diagram of the pressure sensor of the present invention;

[0029] Figure 5 It is a flow chart of the method for measuring the pressure distribution of the earphone pressure mask clamp of the present invention;

[0030] Figure 6 A schematic diagram of a calibration result of the calibration plate of the present invention;

[0031] Figure 7 for Figure 6 Schematic diagram of calibration results in another state is shown.

[0032] Reference numerals:

[0033] 10. chassis; 110. slideway;

[0034] 20, first measuring member; 210, first pressure testing assembly; 2110, first bottom plate; 2120, first testing plate; 2130, first locking member; 2140, first limiting hole; 220, first sliding block;

[0035] 30, second measuring member; 310, second pressure testing assembly; 3110, second bottom plate; 3120, second testing plate; 3130, second locking member; 3140, second limiting hole; 320, second sliding block;

[0036] 40. Pressure sensor;

[0037] 50. Support frame;

[0038] 60. Calibration plate; 610. Bolt;

[0039] 70. USB interface. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 This is a schematic diagram of the structure of the headphone pressure mask clamp pressure distribution measuring device of the present invention. Figure 2 This is an exploded view of a base frame and a first measuring piece and a second measuring piece of an embodiment of a headphone pressure mask clamp pressure distribution measuring device of the present invention. Figure 3It is an exploded view of the cooperation between the calibration plate and the second test piece of the present invention. The present invention provides a headphone pressure mask clamping pressure distribution measuring device, comprising a base frame 10 and a first measuring piece 20 and a second measuring piece 30 slidably connected to the base frame 10. The first measuring piece 20 and the second measuring piece 30 are arranged at intervals, and a first pressure test assembly 210 is provided at one end of the first measuring piece 20 away from the second measuring piece 30, and a second pressure test assembly 310 is provided at one end of the second measuring piece 30 away from the first measuring piece 20; wherein, the two headphone heads to be tested of the headphone to be tested are respectively abutted against the first pressure test assembly 210 and the second pressure test assembly 310 to measure the clamping pressure data of the mask to be tested. It should be noted that the two headphone heads to be tested of the headphone to be tested are respectively abutted against the first measuring piece 20 and the second measuring piece 30, and then the first measuring piece 20 and the second measuring piece 30 can measure the clamping pressure data between the two headphone heads to the first measuring piece 20 and the second measuring piece 30. Therefore, the clamping pressure between the headphone heads can be adjusted by the clamping pressure distribution of the headphone heads on the first measuring piece 20 and the second measuring piece 30.

[0042] The first pressure test assembly 210 and the second pressure test assembly 310 include a plurality of pressure sensors 40, and the plurality of pressure sensors 40 of the first pressure test assembly 210 and the plurality of pressure sensors 40 of the second pressure test assembly 310 are arranged in an array. In one embodiment of the present invention, the plurality of pressure sensors 40 are board-mounted digital pressure sensors 40, and each pressure sensor 40 is arranged in a regular hexagon and arranged in an array to form an array board. Each pressure sensor 40 corresponds to a coordinate value on the array board. It is understandable that the coordinates may be in the form of plane rectangular coordinates or polar coordinates, which is not limited here.

[0043] The first pressure test assembly 210 includes a first bottom plate 2110 and a first test plate 2120, the pressure sensor 40 is located on the first test plate 2120, and the first bottom plate 2110 is slidably connected to the base frame 10; the second pressure test assembly 310 includes a second bottom plate 3110 and a second test plate 3120, the pressure sensor 40 is located on the second test plate 3120, and the second bottom plate 3110 is slidably connected to the base frame 10. In one embodiment of the present invention, the first bottom plate 2110 and the first test plate 2120 are vertically arranged and L-shaped. The second bottom plate 3110 and the second test plate 3120 are vertically arranged and L-shaped. When it is necessary to perform a clamping pressure test on the earphone to be tested, the first bottom plate 2110 and the second bottom plate 3110 can be slid to a preset position. Then, the two earphone heads of the earphone to be tested are abutted against the first test plate 2120 and the second test plate 3120 to measure the clamping pressure between the two earphone heads.

[0044] The first bottom plate 2110 is provided with a first locking member 2130, which is used to limit the sliding of the first bottom plate 2110. The second bottom plate 3110 is provided with a second locking member 3130, which is used to limit the sliding of the second bottom plate 3110. The first bottom plate 2110 and the second bottom plate 3110 can limit the positions of the first bottom plate 2110 and the second bottom plate 3110 by the first locking member 2130 and the second locking member 3130 during the sliding, so that the first bottom plate 2110 and the second bottom plate 3110 are in a stable state when they reach the preset position, so as to prevent the first bottom plate 2110 and the second bottom plate 3110 from moving, thereby affecting the accuracy of the clamping force measurement.

[0045] Specifically, in one embodiment of the present invention, a first limiting hole 2140 is provided on the first bottom plate 2110, and the first locking member 2130 is matched with the first limiting hole 2140; a second limiting hole 3140 is provided on the second bottom plate 3110, and the second locking member 3130 is matched with the second limiting hole 3140. That is, the first locking member 2130 moves in the first limiting hole 2140 to limit the position of the first bottom plate 2110, and the second locking member 3130 moves in the second limiting hole 3140 to limit the position of the second bottom plate 3110. It can be understood that the first limiting hole 2140 and the second limiting hole 3140 can both be threaded holes, and the corresponding first locking member 2130 and the second locking member 3130 are screws matched with the threaded holes. The screw is rotated until the bottom of the screw abuts against the surface of the bottom frame 10, thereby limiting the positions of the first bottom plate 2110 and the second bottom plate 3110. It should be noted that the first limiting hole 2140 and the second limiting hole 3140 may also be through holes, and the first locking member 2130 and the second locking member 3130 may be suction cups penetrating the through holes, and when the bottom of the locking member abuts against the surface of the bottom frame 10, the suction force of the suction cup is used to limit the positions of the first bottom plate 2110 and the second bottom plate 3110.

[0046] It also includes a support frame 50 connected to the base frame 10, which is located between the first measuring piece 20 and the second measuring piece 30. The sliding direction of the first measuring piece 20 and the second measuring piece 30 is toward or away from the support frame 50. The support frame 50 is used to support the headband of the earphone to prevent the earphone from shaking during the measurement of the headphone clamping pressure. The first measuring piece 20 and the second measuring piece 30 can be symmetrically arranged with the support frame 50, so that the support frame 50 and the first measuring piece 20 and the second measuring piece 30 correspond to the characteristics of the user's head, so that the measured clamping pressure value is more accurate.

[0047] One of the bottoms of the base frame 10 and the first measuring member 20 is provided with at least one slideway 110, and the other of the bottoms of the base frame 10 and the first measuring member 20 is provided with a first slider 220 adapted to the slideway 110. One of the bottoms of the base frame 10 and the second measuring member 30 is provided with at least one slideway 110, and the other of the bottoms of the base frame 10 and the second measuring member 30 is provided with a second slider 320 adapted to the slideway 110.

[0048] In one embodiment of the present invention, a slideway 110 is provided on the base frame 10, a first slider 220 adapted to the slideway 110 is provided at the bottom of the first measuring member 20, and a second slider 320 adapted to the slideway 110 is provided at the bottom of the second measuring member 30. In one embodiment of the present invention, the number of slideways 110 is 2, and the number of first sliders 220 and second sliders 320 are both 2. The extension direction of the slideway 110 is consistent with the direction of the first measuring member 20 and the second measuring member 30 toward the support frame 50. The setting of the slideway 110 facilitates the sliding of the first bottom plate 2110 and the second bottom plate 3110, and the sliding direction of the first bottom plate 2110 and the second bottom plate 3110 is toward or away from the support frame 50. It should be noted that, in other embodiments, a slider may be provided on the base frame 10, and a slide groove adapted to the slider may be provided at the bottom of the first bottom plate 2110 and the second bottom plate 3110, so that the first bottom plate 2110 and the second bottom plate 3110 can slide on the base frame 10. The number of the slideways 110 may be 3, 4, or 5, etc., and the number of the corresponding first sliders 220 may be 3, 4, or 5, etc., which is not limited here.

[0049] Please refer to Figure 5 , Figure 5 The present invention also provides a method for measuring the pressure distribution of the earphone pressure mask clamp using the above-mentioned earphone pressure mask clamp pressure distribution testing device, comprising:

[0050] S110: Calibrate the range of the first pressure test assembly and the second pressure test assembly set on the first measuring piece and the second measuring piece. In one embodiment of the present invention, a calibration plate is used, and the calibration data parameters are: total thickness deviation (TTV), linear thickness deviation (LTV), bend (BOW) and warp (Warp). And the deviation requirements of the total thickness deviation, linear thickness deviation, bend and warp are all less than or equal to 5um. Three bolts are set on the calibration plate, and the three bolts are matched with the first measuring piece and the second measuring piece. By adjusting the bolts, the spacing between the calibration plate and the first measuring piece and the second measuring piece is adjusted, thereby measuring the zero point and maximum range of the pressure sensor on the first measuring piece and the second measuring piece. Then, the zero point and maximum range of the pressure sensor can be standardized. The first measuring piece and the second measuring piece are provided with a signal acquisition circuit inside, and then the pressure signal of the pressure sensor can be transmitted to the mobile terminal through the USB interface, and then the mobile terminal can measure the pressure value of each pressure sensor, the pressure distribution diagram of the earphone head formed by multiple pressure sensors, and the total pressure value through software.

[0051] S120: Place the two earphone tips of the earphone under test against the first pressure test assembly and the second pressure test assembly respectively to measure the clamping pressure data of the cover under test. Figure 4 and Figure 6 as well as Figure 7 , Figure 4 is an array diagram of the pressure sensor of the present invention, Figure 6 is a schematic diagram of a calibration result of the calibration plate of the present invention, Figure 7 for Figure 6 Schematic diagram of calibration results in another state is shown. Figure 6 The depth of the color represents the different pressure values. The corresponding numerical reference can be Figure 7 , Figure 7 is a numerical test result. It should be noted that Figure 7 The pressure detection data shown in the figure is the value corresponding to the original data enlarged 1000 times, and the detection standard is: the distance between the first detection piece and the second detection piece is 145mm, and the vertical distance between the top of the headband of the headset and the geometric center of the two headset units is 126mm. In this way, the maximum value, minimum value, average value and total value of the pressure can be obtained, and then the pressure value of each area can be adjusted according to the preset corresponding value.

[0052] Each pressure sensor corresponds to a pressure value, and the clamping pressure value of the corresponding position of the earphone head can be known by overall observation. Therefore, the clamping pressure of the specific position of the earphone head can be adjusted according to the calibration result diagram to adjust it to a comfortable wearing level for the user. For example, when the pressure value close to the inside is low, it is necessary to adjust the clamping pressure on the inside of the earphone head. If the pressure value on the outside is low, it is necessary to adjust the clamping pressure on the outside. The adjustment principle of pressure value that is too high is the same as that of pressure value that is too low, so I will not elaborate on it here. Because each pressure sensor corresponds to a pressure value, the pressure value of a specific part of the earphone head can also be adjusted.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An earphone pressure mask clamp pressure distribution measurement device, characterized in that: include: chassis; A first measuring piece and a second measuring piece are slidably connected to the base frame, the first measuring piece and the second measuring piece are spaced apart, a first pressure testing assembly is provided at one end of the first measuring piece away from the second measuring piece, and a second pressure testing assembly is provided at one end of the second measuring piece away from the first measuring piece; A support frame connected to the base frame is located between the first measuring member and the second measuring member, and the sliding direction of the first measuring member and the second measuring member is a direction toward or away from the support frame; wherein, Two earphone heads of the earphone to be tested are respectively abutted against the first pressure testing assembly and the second pressure testing assembly to measure the clamping pressure data of the cover to be tested; The first pressure testing assembly and the second pressure testing assembly include a plurality of pressure sensors, and the plurality of pressure sensors of the first pressure testing assembly and the plurality of pressure sensors of the second pressure testing assembly are arranged in an array.

2. The headphone pressure mask clamp pressure distribution measuring device according to claim 1, characterized in that: The first pressure test assembly comprises a first bottom plate and a first test plate, the pressure sensor is located on the first test plate, and the first bottom plate is slidably connected to the base frame; The second pressure test assembly includes a second bottom plate and a second test plate, the pressure sensor is located on the second test plate, and the second bottom plate is slidably connected to the base frame.

3. The headphone pressure mask clamp pressure distribution measuring device according to claim 2, characterized in that: A first locking member is disposed on the first bottom plate, and the first locking member is used to limit the sliding of the first bottom plate. A second locking member is disposed on the second bottom plate, and the second locking member is used to limit the sliding of the second bottom plate.

4. The headphone pressure mask clamp pressure distribution measuring device according to claim 3, characterized in that: A first limiting hole is formed on the first bottom plate, and the first locking member is adapted to the first limiting hole; The second bottom plate is provided with a second limiting hole, and the second locking member is matched with the second limiting hole.

5. The headphone pressure mask clamp pressure distribution measuring device according to claim 4, characterized in that: The first limiting hole and the second limiting hole are threaded holes, and the first locking member and the second locking member are screws matched with the threaded holes.

6. The headphone pressure mask clamp pressure distribution measuring device according to claim 1, characterized in that: One of the bottom of the base frame and the first measuring member is provided with at least one slideway, and the other of the bottom of the base frame and the first measuring member is provided with a first sliding block adapted to the slideway; One of the bottom of the base frame and the second measuring member is provided with at least one of the slideways, and the other of the bottom of the base frame and the second measuring member is provided with a second sliding block matched with the slideway.

7. The headphone pressure mask clamp pressure distribution measuring device according to claim 6, characterized in that: The number of the slideways is 2, and the number of the first sliders and the number of the second sliders are both 2; The extending direction of the slideway is consistent with the direction of the first measuring member and the second measuring member toward the support frame.

8. A method for measuring pressure distribution using the earphone pressure mask clamp pressure distribution testing device according to any one of claims 1 to 7, characterized in that: Calibrate the measuring ranges of the first pressure test assembly and the second pressure test assembly provided on the first measuring member and the second measuring member; The two earphone heads of the earphone to be tested are respectively placed against the first pressure testing assembly and the second pressure testing assembly to measure the clamping pressure data of the cover to be tested.

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