A noise environment effect testing device for headphones

Abstract

This invention relates to the field of headphone testing, and more particularly to a noise environment impact testing device for headphones. The invention provides a noise environment impact testing device for headphones capable of generating three different noise environments. The device includes a base frame, a mounting plate frame, sound receivers, and a first support plate. The mounting plate frame is connected to the top center of the base frame, and sound receivers are mounted on both sides of the mounting plate frame. The first support plate is connected to the top of the base frame, and the mounting plate frame is located within the first support plate. The invention is activated by a sound generator, which then rotates the output shaft of a servo motor, causing a turntable to rotate. This causes the top block to contact the top rod twice, resulting in the sound generator emitting three different sounds, thus achieving a diversified testing effect.

Description

Technical Field

[0001] This invention relates to the field of headphone testing, and more particularly to a noise environment effect testing device for headphones. Background Technology

[0002] The advent of headphones has brought great convenience to people's lives and is being used more and more frequently in various occasions. Due to the different environments in which people use headphones, in order to hear the other person's voice clearly, people tend to use noise-canceling headphones. In order to meet the needs of users, noise cancellation tests are conducted on headphones during the production process by placing them in a testing device. However, existing tests can only create one type of noise environment, which makes the test too simplistic. Therefore, we need to design a testing device.

[0003] We have designed a noise environment effect testing device for headphones that can create three noise environments, in order to overcome the limitations of existing testing devices that only test a single effect when in use. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a noise environment influence testing device for headphones capable of creating three noise environments, thereby overcoming the drawback of existing testing devices that only test a single type of noise during use.

[0005] To achieve the above objectives, the present invention provides the following solution: a noise environment impact testing device for headphones, comprising:

[0006] The base frame and mounting plate frame are connected to the mounting plate frame at the top center of the base frame.

[0007] Sound receivers are installed on both the left and right sides of the mounting bracket;

[0008] The first support plate is connected to the top of the base frame, and the mounting plate frame is located inside the first support plate;

[0009] The first display panel is installed on both the front and rear sides of the first support plate. The first display panel on the front side is electrically connected to the sound receiver on the left side, and the first display panel on the rear side is electrically connected to the sound receiver on the right side.

[0010] The sound-generating mechanism is located on the rear top of the base frame and is used to create three different noise environments.

[0011] An audio switching mechanism is provided on the sound-generating mechanism to achieve automatic sound switching.

[0012] As an improvement to the above solution, the upper part of the mounting plate is circular to fit the shape of the earphone.

[0013] As an improvement to the above solution, the sound-generating mechanism includes:

[0014] The base frame has symmetrically connected fixing frames on the top rear side;

[0015] Servo motors are mounted on the upper side of the mounting bracket;

[0016] Turntables are connected to the output shafts of both the turntable and the servo motor;

[0017] A sound generator is installed on the underside of the turntable to produce sound.

[0018] As an improvement to the above solution, the audio switching mechanism includes:

[0019] The second support frame is connected to the inner side of the fixed frame;

[0020] Top rods are slidably connected to both the top rod and the second support frame;

[0021] The first switch is installed on the inner side of the fixing frame, and the first switch is located on the upper side of the second support frame.

[0022] A first spring is connected between the second support frame and the top rod that slides within the second support frame, and the first spring is wrapped around the upper side of the top rod.

[0023] Top blocks are connected to both the top block and the turntable.

[0024] As an improvement to the above solution, a closed sound insulation mechanism is also included for testing in a closed environment. The closed sound insulation mechanism includes:

[0025] Rotary rods are rotatably connected to both the left and right sides of the base frame;

[0026] Soundproofing panels are attached to both the soundproofing panel frame and the rotating rod.

[0027] Handles are attached to both the handle and the soundproofing panel frame;

[0028] Magnetic blocks are attached to both the front and back sides of the sound insulation panel frame;

[0029] The soundproof frame is made of transparent glass panels, which are connected to both the front and back sides.

[0030] As an improvement to the above solution, a display mechanism for displaying the frequency of the sound emitted by the sound generator is also included. The display mechanism includes:

[0031] The third support frame is connected to the front and rear sides of the top of the base frame;

[0032] The second display panel is installed on the upper side of both the second display panel and the third support frame. The second display panel on the front side is electrically connected to the speaker on the left side, and the second display panel on the rear side is electrically connected to the speaker on the right side.

[0033] As an improvement to the above solution, a sound-dampening mechanism for clamping the headphones is also included. This sound-dampening mechanism includes:

[0034] Mounting brackets are circumferentially spaced on both the left and right sides of the mounting plate frame.

[0035] Slide rods are slidably connected to both the slide rods and the mounting brackets.

[0036] A locking block is used to connect the slide rods on the same mounting bracket;

[0037] The second spring is connected between the mounting bracket and the inner locking block, and the second spring is wound around the slide rod.

[0038] As an improvement to the above solution, a triggering mechanism for automatic power-on is also included, the triggering mechanism comprising:

[0039] The fourth support plate is connected to both the left and right sides of the top of the base frame. The fourth support plate is located inside the sound insulation board frame and outside the first support plate.

[0040] Telescopic rods are connected to the outer side of the fourth support plate;

[0041] Push blocks are connected between telescopic rods on the same side;

[0042] The second switch is installed on both the second switch and the fourth support plate;

[0043] The third spring is connected between the telescopic rod and the push block located on the outside, and the third spring is wound around the telescopic rod.

[0044] The advantages of this invention are: 1. This invention is started by a sound generator, and then the output shaft of the servo motor rotates to drive the turntable to rotate, so that the top block contacts the top rod twice, thereby making the sound generator emit three different sounds, thus achieving a diversified testing effect;

[0045] 2. By manually turning the handle inward, the sound insulation panel frame and the magnetic block rotate in opposite directions. When the two sound insulation panels come into contact, the magnetic blocks attract each other, thus achieving a closing effect and making the test results better.

[0046] 3. When people put the headphones on the mounting plate, they release the locking block, which causes the second spring to reset and move the locking block inward to clamp the headphones. This causes the sliding rod to move inward, thus achieving the clamping effect and preventing the headphones from being shaken off. Attached Figure Description

[0047] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0048] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0049] Figure 3 This is a three-dimensional structural diagram of the sound-generating mechanism of the present invention.

[0050] Figure 4 This is a three-dimensional structural diagram of the first part of the audio switching mechanism of the present invention.

[0051] Figure 5 This is an enlarged view of point A in the present invention.

[0052] Figure 6 This is a three-dimensional structural diagram of the second part of the audio switching mechanism of the present invention.

[0053] Figure 7 This is a three-dimensional structural diagram of the first part of the closed sound insulation mechanism of the present invention.

[0054] Figure 8 This is a schematic diagram of the second part of the closed sound insulation mechanism of the present invention.

[0055] Figure 9 This is a three-dimensional structural diagram of the display mechanism of the present invention.

[0056] Figure 10 This is a three-dimensional structural diagram of the first part of the soundproofing and vibration-damping mechanism of the present invention.

[0057] Figure 11 This is a schematic diagram of the second part of the soundproof and vibration-damping mechanism of the present invention.

[0058] Figure 12 This is a three-dimensional structural diagram of the first part of the triggering mechanism of the present invention.

[0059] Figure 13 This is a three-dimensional structural diagram of the second part of the triggering mechanism of the present invention.

[0060] Figure 14 This is a three-dimensional structural diagram of the third part of the triggering mechanism of the present invention.

[0061] Component names and numbers in the diagram: 1_Base frame, 2_Mounting plate frame, 3_Sound receiver, 31_First display panel, 32_First support plate, 4_Sound generating mechanism, 41_Fixed frame, 42_Servo motor, 43_Turntable, 44_Sound generator, 5_Audio switching mechanism, 51_Second support frame, 52_First switch, 53_Top block, 54_Top rod, 55_First spring, 6_Closed sound insulation mechanism, 61_Sound insulation plate frame, 62_Rotating rod, 63_Handle, 64_Magnetic block, 65_Transparent glass plate, 7_Display mechanism, 71_Third support frame, 72_Second display panel, 8_Soundproof vibration damping mechanism, 81_Mounting frame, 82_Slide rod, 83_Second spring, 84_Clocking block, 9_Trigger mechanism, 91_Fourth support plate, 92_Telescopic rod, 93_Push block, 94_Second switch, 95_Third spring. Detailed Implementation

[0062] The present invention will now be further described with reference to the accompanying drawings and specific embodiments:

[0063] Example 1

[0064] A noise environment effect testing device for headphones, now referenced Figure 1 and Figure 2 The device includes a base frame 1, a mounting plate frame 2, a sound receiver 3, a first display panel 31, a first support plate 32, a sound-generating mechanism 4, and an audio switching mechanism 5. The mounting plate frame 2 is welded to the middle of the top of the base frame 1. Sound receivers 3 are installed on both the left and right sides of the mounting plate frame 2. The first support plate 32 is welded to the top of the base frame 1. The mounting plate frame 2 is located inside the first support plate 32. The first display panel 31 is installed on both the front and rear sides of the first support plate 32. The front first display panel 31 is electrically connected to the left sound receiver 3, and the rear first display panel 31 is electrically connected to the right sound receiver 3. The sound-generating mechanism 4 is provided on the rear side of the top of the base frame 1, and the audio switching mechanism 5 is provided on the sound-generating mechanism 4.

[0065] For reference Figure 1 and Figure 3 The sound-generating mechanism 4 includes a fixed frame 41, a servo motor 42, a turntable 43, and a sound generator 44. Two fixed frames 41 are connected to the top rear side of the base frame 1. The servo motor 42 is fixed to the upper side of the two fixed frames 41 by bolts. The output shaft of the two servo motors 42 is connected to the turntable 43. Three sound generators 44 are installed on the lower side of the turntable 43. There are six sound generators 44 in total.

[0066] For reference Figure 1 , Figure 4 , Figure 5 and Figure 6The audio switching mechanism 5 includes a second support frame 51, a first switch 52, a top block 53, a top rod 54, and a first spring 55. The inner sides of the two fixed frames 41 are each connected to the second support frame 51. The top rod 54 is slidably connected to the two second support frames 51. The first switch 52 is installed on the inner side of the two fixed frames 41. The first switch 52 is located on the upper side of the second support frame 51. After the top rod 54 on the left moves, it contacts the first switch 52 on the left. After the top rod 54 on the right moves, it contacts the first switch 52 on the right. The first spring 55 is connected between the top rod 54 on the left and the second support frame 51 on the left. The first spring 55 is connected between the top rod 54 on the right and the second support frame 51 on the right. The first spring 55 is wrapped around the top rod 54. The two turntables 43 are each connected to a top block 53. After the top block 53 on the left moves, it contacts the top rod 54 on the left. After the top block 53 on the right moves, it contacts the top rod 54 on the right.

[0067] When testing the noise environment impact of headphones, this headphone noise environment impact testing device can be used. First, the headphones to be tested are placed on the mounting plate 2, so that the headphone speaker is in contact with the sound receiver 3. Then, the headphones are turned on, allowing the sound receiver 3 to receive the sound emitted by the headphones. The headphone noise environment impact testing device is then powered on, activating the sound generator 44. The sound generator 44 can emit three sounds. After the sound generator 44 is activated, it emits the first sound. Then, the servo motor 42 is started and the first display panel 31 is turned on, causing the output shaft of the servo motor 42 to rotate, driving the turntable 43 to rotate. This causes the sound generator 44 and the top block 53 to rotate. The servo motor 42 rotates relatively slowly. When the top block 53 rotates to contact the top rod 54, the top block 53 drives the top rod 54 to move upward, thus stretching the first spring 55. When the top rod 54 moves upward and... When the first switch 52 is engaged, the speaker 44 emits a second sound. As the top block 53 continues to rotate away from the top rod 54, the first spring 55 resets, causing the top rod 54 to move downward away from the first switch 52. When the top block 53 rotates and engages with the top rod 54 again, the top block 53 causes the top rod 54 to move upward, thus stretching the first spring 55. When the top rod 54 moves upward and engages with the first switch 52, the speaker 44 emits a third sound. People can compare the initial frequency of the sound emitted by the headphones with the three sound frequencies received by the sound receiver 3 on the first display panel 31 to determine the noise reduction effect of the headphones under three different noise environments. This achieves the test effect. When the test is completed, people turn off the servo motor 42 and the first display panel 31, turn off the headphones, and disconnect the power to the noise environment influence test device, causing the speaker 44 to turn off. Then, people remove the headphones from the mounting bracket 2.

[0068] Example 2

[0069] Based on Example 1, now refer to Figure 1 , Figure 7 and Figure 8 It also includes a closed sound insulation mechanism 6, which includes a sound insulation panel frame 61, a rotating rod 62, a handle 63, magnetic blocks 64, and a transparent glass plate 65. The base frame 1 is rotatably connected to the rotating rod 62 on both the left and right sides. The sound insulation panel frame 61 is connected to both rotating rods 62. The handle 63 is welded to both sound insulation panel frames 61. The sound insulation panel frame 61 is connected to two magnetic blocks 64 on both the front and back sides. There are eight magnetic blocks 64. The sound insulation panel frame 61 is connected to four transparent glass plates 65 on both the front and back sides.

[0070] For reference Figure 1 and Figure 9 It also includes a display mechanism 7, which includes a third support frame 71 and a second display panel 72. The third support frame 71 is welded to both the front and rear sides of the top of the base frame 1. The second display panel 72 is installed on the upper side of both third support frames 71. The second display panel 72 on the front side is electrically connected to the three speakers 44 on the left side, and the second display panel 72 on the rear side is electrically connected to the three speakers 44 on the right side.

[0071] For reference Figure 1 , Figure 10 and Figure 11 It also includes a soundproof and vibration-damping mechanism 8, which includes a mounting bracket 81, a sliding rod 82, a second spring 83, and a locking block 84. Three mounting brackets 81 are evenly welded to both the left and right sides of the mounting plate frame 2, for a total of six mounting brackets 81. Two sliding rods 82 are slidably connected to each mounting bracket 81, for a total of twelve sliding rods 82. Six locking blocks 84 are connected between two sliding rods 82 on the same mounting bracket 81. Two second springs 83 are connected between the locking blocks 84 on the front left side and the mounting bracket 81 on the front left side. The locking blocks 84 on the lower left side are connected to... Two second springs 83 are connected between the mounting brackets 81 on the lower left side, two second springs 83 are connected between the locking block 84 on the rear left side and the mounting bracket 81 on the rear left side, two second springs 83 are connected between the locking block 84 on the front right side and the mounting bracket 81 on the front right side, two second springs 83 are connected between the locking block 84 on the lower right side and the mounting bracket 81 on the lower right side, and two second springs 83 are connected between the locking block 84 on the rear right side and the mounting bracket 81 on the rear right side. The second springs 83 are wound around the slide rod 82, and there are twelve second springs 83.

[0072] For reference Figure 1 , Figure 12 , Figure 13 and Figure 14It also includes a triggering mechanism 9, which comprises a fourth support plate 91, telescopic rods 92, push blocks 93, a second switch 94, and a third spring 95. The base frame 1 has fourth support plates 91 welded to both the left and right sides of its top. The fourth support plates 91 are located inside the soundproof panel frame 61 and outside the first support plate 32. Four telescopic rods 92 are connected to the outer sides of both fourth support plates 91. There are eight telescopic rods 92 in total. Push blocks 93 are connected between the four telescopic rods 92 on the left and the four telescopic rods 92 on the right. After the left soundproof panel frame 61 rotates... The left push block 93 is in contact with the right soundproofing plate frame 61 after rotation. The two fourth support plates 91 are each equipped with a second switch 94. After the left push block 93 moves, it contacts the left second switch 94. After the right push block 93 moves, it contacts the right second switch 94. The four telescopic rods 92 on the left are connected to the left push block 93 with a third spring 95. The four telescopic rods 92 on the right are connected to the right push block 93 with a third spring 95. There are four third springs 95, which are wrapped around the telescopic rods 92.

[0073] When people need to put the headphones on the mounting plate 2, they can manually turn the handle 63 outward, which causes the soundproof plate 61 to rotate outward, causing the rotating rod 62 and the magnetic block 64 to rotate outward, and then the transparent glass plate 65 to rotate outward. When the soundproof plate 61 is rotated to the appropriate position, people can put the headphones on the mounting plate 2. Then, people can manually turn the handle 63 inward, which causes the soundproof plate 61 to rotate inward, causing the rotating rod 62 and the magnetic block 64 to rotate inward, and then the transparent glass plate 65 to rotate inward. When the two soundproof plates 61 are in contact, the magnetic blocks 64 attract each other, thus achieving a closing effect and improving the test results. During the test, people can view the frequency data on the first display plate 31 through the transparent glass plate 65. When the test is completed, people can remove the headphones by manually turning the handle 63 outward according to the above steps.

[0074] After the sound emitters 44 on the left and right sides emit sound, the frequency of the sound emitted by the corresponding sound emitter 44 will be displayed on the second display panel 72. In order to maintain the accuracy of the test, the frequency of the sound emitted by the sound emitters 44 on the left and right sides is kept consistent. When the initial frequency of the sound emitted by the headphones differs greatly from the frequency data received by the sound receiver 3 on the first display panel 31, it can be determined that the sound emitted by the sound emitter 44 affects the noise reduction effect of the headphones. The second display panel 72 displays the frequency of the sound emitted by the corresponding sound emitter 44 at that time, so that people can record which frequency affects the noise reduction of the headphones.

[0075] When people need to put the headphones on the mounting plate 2, they can manually move the locking block 84 outward, which causes the sliding rod 82 to move outward, compressing the second spring 83. When the locking block 84 moves outward to the appropriate position, people can put the headphones on the mounting plate 2. Then, people can release the locking block 84, which causes the second spring 83 to reset and move the locking block 84 inward to clamp the headphones. This causes the sliding rod 82 to move inward, thus achieving the clamping effect and preventing the headphones from being shaken off during testing. When people need to remove the headphones, they can simply move the locking block 84 outward according to the above steps and take out the headphones.

[0076] After the user places the headphones on the mounting bracket 2, they manually turn the handle 63 inward, causing the soundproof bracket 61 to rotate inward. When the soundproof bracket 61 rotates inward and contacts the push block 93, the soundproof bracket 61 drives the push block 93 to move inward, thereby shortening the telescopic rod 92 and compressing the third spring 95. When the push block 93 moves inward and contacts the second switch 94, the headphone noise environment influence test device is powered on. After the user completes the test, they manually turn the handle 63 outward, causing the soundproof bracket 61 to rotate outward. When the soundproof bracket 61 rotates outward away from the push block 93, the third spring 95 resets, causing the push block 93 to move outward away from the second switch 94, thereby extending the telescopic rod 92 and de-energizing the headphone noise environment influence test device. This achieves an automatic power-off effect, saving manpower.

[0077] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this invention.

Claims

1. A noise environment effect testing device for headphones, characterized in that, Including: The base frame (1) and the mounting plate frame (2) are connected to the middle of the top of the base frame (1). Sound receiver (3) is installed on both the left and right sides of the mounting bracket (2); The first support plate (32) is connected to the top of the base frame (1), and the mounting frame (2) is located inside the first support plate (32); The first display panel (31) and the first support plate (32) are both equipped with the first display panel (31) on the front and back sides. The first display panel (31) on the front side is electrically connected to the sound receiver (3) on the left side, and the first display panel (31) on the rear side is electrically connected to the sound receiver (3) on the right side. The sound-generating mechanism (4) is provided on the rear side of the top of the base frame (1). The sound-generating mechanism (4) is used to create three different noise environments. Audio switching mechanism (5) is provided on the sound-generating mechanism (4). The audio switching mechanism (5) is used to realize automatic sound switching. The sound-generating mechanism (4) includes: The top rear side of the base frame (1) is symmetrically connected to the fixed frame (41). Servo motors (42) are installed on the upper side of the mounting bracket (41). Turntable (43) is connected to the output shaft of both the turntable (43) and the servo motor (42). A sound generator (44) is installed on the underside of the turntable (43) for producing sound. The audio switching mechanism (5) includes: The second support frame (51) and the inner side of the fixing frame (41) are both connected to the second support frame (51). The top rod (54) and the second support frame (51) are both slidably connected to the top rod (54). The first switch (52) is installed on the inner side of the fixing frame (41), and the first switch (52) is located on the upper side of the second support frame (51); The first spring (55) is connected between the second support frame (51) and the top rod (54) that slides inside the second support frame (51). The first spring (55) is wrapped around the upper side of the top rod (54). Top blocks (53) are connected to both the top block (53) and the turntable (43); It also includes a closed sound insulation mechanism (6) for testing in a closed environment, the closed sound insulation mechanism (6) including: Rotating rod (62), rotating rod (62) is rotatably connected to both the left and right sides of the base frame (1); The soundproof panel frame (61) and the rotating rod (62) are both connected to the soundproof panel frame (61). Handles (63) are connected to both the handle (63) and the soundproofing frame (61). Magnetic blocks (64) are connected to both the front and rear sides of the sound insulation board frame (61). Transparent glass plate (65), sound insulation board frame (61) has transparent glass plates (65) connected to both the front and rear sides. It also includes a trigger mechanism (9) for automatic power-on, the trigger mechanism (9) including: The fourth support plate (91) is connected to the top left and right sides of the base frame (1). The fourth support plate (91) is located inside the sound insulation board frame (61) and outside the first support plate (32). Telescopic rods (92) are connected to the outside of the fourth support plate (91); Push blocks (93) are connected to telescopic rods (92) on the same side. The second switch (94) is installed on both the second switch (94) and the fourth support plate (91). The third spring (95) is connected between the telescopic rod (92) and the push block (93) located on the outside. The third spring (95) is wrapped around the telescopic rod (92).

2. The noise environment impact testing device for headphones according to claim 1, characterized in that, The upper part of the mounting plate (2) is round, which fits the shape of the earphone.

3. The noise environment impact testing device for headphones according to claim 2, characterized in that, It also includes a display mechanism (7) for displaying the frequency of the sound emitted by the sound generator (44), the display mechanism (7) including: The third support frame (71) is connected to the front and rear sides of the top of the base frame (1). The second display panel (72) is installed on the upper side of the third support frame (71). The second display panel (72) on the front side is electrically connected to the speaker (44) on the left side, and the second display panel (72) on the rear side is electrically connected to the speaker (44) on the right side.

4. The noise environment impact testing device for headphones according to claim 3, characterized in that, It also includes a sound-dampening mechanism (8) for clamping the headphones, the sound-dampening mechanism (8) including: Mounting bracket (81), mounting plate frame (2) is circumferentially connected to mounting bracket (81) on both the left and right sides. The slide rod (82) is slidably connected to both the mounting bracket (81) and the mounting bracket (82). The locking block (84) is connected between the slide rods (82) on the same mounting bracket (81); The second spring (83) is connected between the mounting bracket (81) and the inner locking block (84), and the second spring (83) is wound around the slide rod (82).

Images