Headphone clamping force testing device
By designing a headphone clamping force testing device, which utilizes an active roller, a driven roller, a belt, and a pressure sensor to automatically detect the headphone's squeezing force, the problem of low efficiency in manual testing in existing technologies is solved, enabling efficient mass production.
Patent Information
- Application Number
- CN202422961318.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing headphone compression tests require manual operation, resulting in poor continuity, inability to adapt to large-scale batch testing, and low work efficiency.
A headphone clamping force testing device was designed, which uses an active roller, a driven roller, a belt and a headphone fixing clip to achieve automated detection. Combined with a pressure sensor and a simulated head structure, the device automatically detects the squeezing force of the headphones.
It enables continuous automatic testing of headphones, improving testing efficiency and adapting to large-scale mass production.
Smart Images
Figure CN223664143U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to earphone technical field, specifically is a headset clamping force testing device. BACKGROUND
[0002] Earphone is a audio player, it can accept from the electric sign of media player or receiver, utilize the loudspeaker close to ear to transform into the audible sound wave that human ear can hear, the earphone of existing many, can be divided into ear -in, head -wearing, earplug and bone conduction type.
[0003] In the existing head -wearing earphone, because need long time to wear earphone in the head position, the extrusion force of loudspeaker position to ear needs to be tested, prevents the extrusion force from being too big, causes the damage to human ear, the existing head -wearing earphone carries out the test, needs manual earphone to be connected, carries out earphone extrusion force test, and the continuity is poor, is not suitable for large -scale batch test, and the working efficiency is low. UTILITY MODEL CONTENTS
[0004] The utility model discloses a headset clamping force testing device to solve the problems in the above background.
[0005] To achieve the above object, the utility model provides the following technical scheme: a headset clamping force testing device, including workbench, the one side of workbench is equipped with detection table, be equipped with a plurality of driven roller on the detection table, be equipped with driving roller on the detection table, the driving roller is connected driven roller through the belt, be equipped with the limit ring on the driven roller, be equipped with a plurality of head -wearing earphone fixed clamps on the belt, the one side of driving roller, be equipped with the sliding slot on the detection table, the sliding slot is slidably connected mobile support, the mobile support one end is fixedly connected analog head, the analog head is located ear position and is equipped with pressure detection structure.
[0006] Preferably, the pressure detection structure includes a center limiting cylinder and a simulated human ear, a moving rod is fixedly arranged on one side of the center limiting cylinder facing the simulated human ear, the moving rod is slidably connected in the center limiting cylinder, a limiting plate is arranged on the side of the moving rod away from the simulated human ear, the limiting plate is fixedly connected with a spring on the side away from the moving rod, a pressure sensor is arranged at the center position of the center limiting cylinder, and one end of the spring is fixedly connected with the pressure sensor.
[0007] Preferably, the head -wearing earphone fixed clamp is connected with the head -wearing earphone, and the motion track of the head -wearing earphone is matched with the analog head.
[0008] Preferably, a stepping motor is arranged in the workbench, and the output end of the stepping motor is fixedly connected with the driving roller.
[0009] Preferably, the headphone clip is integrally cast from an elastic material.
[0010] Compared with the prior art, the beneficial effects of this utility model are: the continuous detection can be achieved by using the active roller, the belt and the headphone fixing clip, and the headphones can be tested continuously, thus improving work efficiency. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0012] Figure 2 This is a schematic diagram of the pressure detection structure of this utility model;
[0013] Figure 3 This is a schematic diagram of the headphone fixing clip structure of this utility model.
[0014] In the diagram: 1. Workbench; 2. Detection table; 3. Driven roller; 4. Driven roller; 5. Belt; 6. Limiting ring; 7. Headphone clamp; 8. Slide groove; 9. Moving bracket; 10. Simulated head; 11. Pressure detection structure; 111. Simulated ear; 112. Moving rod; 113. Limiting plate; 114. Spring; 115. Central limiting cylinder; 116. Pressure sensor. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0016] Please refer to 1-3. One embodiment of this utility model provides a headphone clamping force testing device, including a workbench 1, a testing platform 2 fixedly mounted on one side of the workbench 1, a plurality of driven rollers 3 mounted on the testing platform 2, an active roller 4 mounted on the testing platform 2, the active roller 4 being connected to the active roller 3 via a belt 5, a limiting ring 6 mounted on the driven roller 3, a plurality of headphone clamps 7 fixedly mounted on the belt 5, a sliding groove 8 mounted on one side of the active roller 4 on the testing platform 2, a movable bracket 9 slidably connected to the sliding groove 8, a simulated head 10 fixedly connected to one end of the movable bracket 9, a pressure detection structure 11 located at the ear position of the simulated head 10, which snaps the connection of the headphone into the headphone. The headphone is secured in place by the elasticity of the headphone clamp 7. As the drive roller 4 and driven roller 3 rotate, the headphone clamp 7 on the belt 5 rotates, causing the headphone to automatically enter the simulated head 10. When the headphone comes into contact with the pressure detection structure 11, the pressure value between the headphone and the simulated head 10 is transmitted to the control panel on the workbench 1. The tested headphone continues to move with the belt 5. The operator can remove the qualified headphone from the driven roller 3 near the workbench 1. Headphones that fail the pressure test are also removed and stored in different locations.
[0017] The pressure detection structure 11 includes a central limiting cylinder 115 and a simulated ear 111. A movable rod 112 is fixedly provided on the side of the simulated ear 111 facing the central limiting cylinder 115. The movable rod 112 is slidably connected inside the central limiting cylinder 115. A limiting plate 113 is provided on the side of the movable rod 112 away from the simulated ear 111. A spring 114 is fixedly connected to the side of the limiting plate 113 away from the movable rod 112. A pressure sensor 116 is provided at the center of the central limiting cylinder 115. One end of the spring 114 is fixedly connected to a pressure sensor. When the headset comes into contact with either of the simulated ears 111, the sensor 116 first pushes the moving rod 112 towards the pressure sensor 116, causing the moving rod 112 to compress the spring 114. The spring 114 then transmits the compressive force to the pressure sensor 116, thereby detecting the compressive force. In this way, regardless of whether one speaker of the headset is in contact with the simulated ear 111 or both speakers of the headset are in contact with the simulated ear 111, the compressive force value can be detected.
[0018] The headphone clamp 7 is designed to hold the headphones in place. The movement trajectory of the headphones is matched with that of the simulated head 10. After the movement trajectory is matched, the headphones will pass through the simulated ear 111 as they move with the headphone clamp 7, ensuring that the headphones will come into contact with the simulated ear 111 and form a compression. The worktable 1 is equipped with a stepper motor, and the output end of the stepper motor is fixedly connected to the active roller 4. The stepper motor controls the rotation speed and pause time of the active roller 4 to ensure that there is enough time for the compression force to be detected.
[0019] The headphone clip 7 is made of a single piece of elastic material, which reduces manufacturing costs while making the headphone clip 7 flexible and easy to install and remove headphones.
[0020] Working Principle: During use, the operator stands on one side of the workbench 1 and starts the stepper motor via the control panel on the workbench 1, driving the active roller 4 to rotate. At this time, the belt 5 drives the driven roller 3 to rotate. During the rotation, the operator places the headset to be tested into the headset fixing clip 7 from the position of the driven roller 3 near the workbench 1, positioning the headset connection at the bottom of the headset fixing clip 7. The speaker part of the headset is perpendicular to the bottom of the headset fixing clip 7. As the headset fixing clip 7 gradually moves to the simulated head 10, the headset will be fitted into the simulated head 10. As the headphone clamp 7 gradually moves, the headphone comes into contact with the simulated human ear 111, pushing the moving rod 112 towards the pressure sensor 116. The moving rod 112 compresses the spring 114, which transmits the compressive force to the pressure sensor 116. The detected pressure value is transmitted to the control panel. The headphone that has completed the test continues to move with the belt 5. When it reaches the headphone installation position, the headphone is manually removed from the headphone clamp 7. Qualified headphone is placed together, and unqualified headphone is placed together, realizing continuous testing of the headphone and improving work efficiency.
Claims
1. A headphone clamping force testing device, comprising a worktable (1), characterized in that: A detection platform (2) is fixedly provided on one side of the workbench (1). Several driven rollers (3) are provided on the detection platform (2). An active roller (4) is provided on the detection platform (2). The active roller (4) is connected to the driven roller (3) through a belt (5). A limiting ring (6) is provided on the driven roller (3). Several headphone fixing clips (7) are fixedly provided on the belt (5). A slide groove (8) is provided on one side of the active roller (4) on the detection platform (2). A movable bracket (9) is slidably connected on the slide groove (8). A simulated head (10) is fixedly connected to one end of the movable bracket (9). A pressure detection structure (11) is provided at the ear position of the simulated head (10).
2. The headphone clamping force testing device according to claim 1, characterized in that: The pressure detection structure (11) includes a central limiting cylinder (115) and a simulated ear (111). A moving rod (112) is fixedly provided on the side of the simulated ear (111) facing the central limiting cylinder (115). The moving rod (112) is slidably connected inside the central limiting cylinder (115). A limiting plate (113) is provided on the side of the moving rod (112) away from the simulated ear (111). A spring (114) is fixedly connected on the side of the limiting plate (113) away from the moving rod (112). A pressure sensor (116) is provided at the center of the central limiting cylinder (115). One end of the spring (114) is fixedly connected to the pressure sensor (116).
3. The headphone clamping force testing device according to claim 1, characterized in that: The headphone clip (7) secures the headphone, and the movement trajectory of the headphone matches that of the simulated head (10).
4. The headphone clamping force testing device according to claim 1, characterized in that: The workbench (1) is equipped with a stepper motor, and the output end of the stepper motor is fixedly connected to the drive roller (4).
5. The headphone clamping force testing device according to claim 1, characterized in that: The headphone clip (7) is made of elastic material by integral casting.