An earpiece test fixture

Abstract

The utility model discloses a kind of handset test tool, including fixed plate, artificial ear and arc dust cover, the fixed plate is equipped with the placement groove and test mouth of intercommunication;The artificial ear touches the fixed plate, and the pickup port of the artificial ear is connected with the test mouth;The arc dust cover is connected with the fixed plate, and the arc dust cover is at least partially located in the pickup port.The handset test tool has arc dust cover, can effectively prevent external dust from invading artificial ear, prevent dust from gathering in artificial ear, benefit to prolong the service life of artificial ear.Compared with plane dust cloth, arc dust cover has larger sound-transmitting area, which is beneficial to reduce the influence on acoustic test, and furthermore, arc dust cover has lower resonance risk, which is beneficial to ensure the accuracy of test results.

Description

Technical Field

[0001] This utility model relates to the field of testing fixtures for electroacoustic devices, and in particular to a testing fixture for a handset. Background Technology

[0002] Some earpiece testing fixtures are equipped with artificial ears. The existing earpiece testing fixtures equipped with artificial ears have the following main problems: external dust can easily enter the artificial ear through the test port of the fixture, causing abnormal testing. Moreover, after long-term use, the earpiece testing fixture may also cause permanent damage to the artificial ear due to excessive dust accumulation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a testing fixture for an artificial ear that can prevent dust from entering.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a handset testing fixture, comprising:

[0005] A fixing plate, wherein the fixing plate is provided with a connected placement slot and a test port;

[0006] An artificial ear, wherein the artificial ear abuts against the fixing plate, and the pickup port of the artificial ear is connected to the test port;

[0007] An arc-shaped dust cover is connected to the fixing plate, and at least part of the arc-shaped dust cover is located inside the pickup port.

[0008] Furthermore, the arc-shaped dust cover has an extended edge, which is fixedly connected to the fixing plate.

[0009] Furthermore, the entire area of ​​the arc-shaped dust cover is located within the microphone port.

[0010] Furthermore, the fixing plate includes a base plate and a base, the placement groove and the test port are both provided on the base, the base plate is provided with a mounting port for mounting the base, the base plate and the base are detachably connected, and the arc-shaped dust cover is connected to the base.

[0011] Furthermore, the base includes a connected panel and a frame, the test port is located on the panel, the arc-shaped dust cover is connected to the panel, and the hollow area of ​​the frame is the placement slot.

[0012] Furthermore, the panel is detachably connected to the frame.

[0013] Furthermore, it also includes a mounting bracket for connecting the fixing plate, the mounting bracket being provided with fastening screws, the fastening screws abutting the end of the artificial ear away from the pickup port.

[0014] Furthermore, the mounting bracket is generally U-shaped.

[0015] Furthermore, the fastening screw is positioned corresponding to the central axis of the artificial ear.

[0016] Furthermore, the fixing plate is provided with a positioning groove, which is connected to the test port, and a portion of the artificial ear is located in the positioning groove.

[0017] The beneficial effects of this invention are as follows: This earpiece testing fixture has an arc-shaped dust cover, which can effectively prevent external dust from entering the artificial ear, prevent dust from accumulating inside the artificial ear, and help extend the service life of the artificial ear. Compared with a flat dust cover, the arc-shaped dust cover has a larger sound transmission area, which helps reduce the impact on acoustic testing. Moreover, the arc-shaped dust cover has a lower risk of resonance, which helps ensure the accuracy of test results. Attached Figure Description

[0018] Figure 1 A cross-sectional view of the earpiece testing fixture;

[0019] Figure 2 for Figure 1 Detail A in the text;

[0020] Figure 3 This is a schematic diagram of the arc-shaped dust cover in the earpiece testing fixture.

[0021] Label Explanation:

[0022] 1. Fixing plate; 11. Placement slot; 12. Test port; 13. Positioning slot; 14. Base plate; 15. Base; 151. Panel; 152. Frame;

[0023] 2. Artificial ear; 21. Sound pickup port;

[0024] 3. Curved dust cover; 31. Outer edge;

[0025] 4. Mounting bracket;

[0026] 5. Tighten the screws. Detailed Implementation

[0027] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0028] Please refer to Figures 1 to 3A handset testing fixture includes a fixing plate 1, an artificial ear 2, and an arc-shaped dust cover 3. The fixing plate 1 has a connected placement groove 11 and a test port 12. The artificial ear 2 abuts against the fixing plate 1, and the pickup port 21 of the artificial ear 2 is connected to the test port 12. The arc-shaped dust cover 3 is connected to the fixing plate 1, and at least part of the arc-shaped dust cover 3 is located inside the pickup port 21.

[0029] As can be seen from the above description, the beneficial effects of this utility model are as follows: This earpiece testing fixture has an arc-shaped dust cover 3, which can effectively prevent external dust from entering the artificial ear 2, prevent dust from accumulating inside the artificial ear 2, and help extend the service life of the artificial ear 2. Compared with a flat dust cover, the arc-shaped dust cover 3 has a larger sound transmission area, which helps to reduce the impact on acoustic testing. Moreover, the arc-shaped dust cover 3 has a lower risk of resonance, which helps to ensure the accuracy of test results.

[0030] Furthermore, the arc-shaped dust cover 3 has an outer edge 31, which is fixedly connected to the fixing plate 1.

[0031] As can be seen from the above description, the arc-shaped dust cover 3 can form a more stable connection with the fixing plate 1 through the outer edge 31.

[0032] Furthermore, the entire area of ​​the arc-shaped dust cover 3 is located within the microphone port 21.

[0033] As can be seen from the above description, the entire area of ​​the arc-shaped dust cover 3 is located within the pickup port 21, which simplifies the overall structure of the earpiece testing fixture.

[0034] Furthermore, the fixing plate 1 includes a base plate 14 and a base 15. The placement groove 11 and the test port 12 are both provided on the base 15. The base plate 14 is provided with a mounting port for mounting the base 15. The base plate 14 and the base 15 are detachably connected. The arc-shaped dust cover 3 is connected to the base 15.

[0035] As can be seen from the above description, changing the base 15 allows the earpiece testing fixture to be adapted to test miniature speakers of different sizes.

[0036] Furthermore, the base 15 includes a connected panel 151 and a frame 152, the test port 12 is provided on the panel 151, the arc-shaped dust cover 3 is connected to the panel 151, and the hollow area of ​​the frame 152 is the placement groove 11.

[0037] As can be seen from the above description, panel 151 can be removed during dust removal, avoiding the tedious process of disassembling from the back of the test fixture.

[0038] Furthermore, the panel 151 is detachably connected to the frame 152.

[0039] As described above, the detachable connection between panel 151 and frame 152 allows for the placement of a larger sealing silicone pad for close contact with the electroacoustic device under test between panel 151 and frame 152. This larger sealing silicone pad can be clamped and fixed by panel 151 and frame 152, reducing the risk of the sealing silicone pad shifting from its original position during testing and thus improving the accuracy of the test results. Simultaneously, it also facilitates the manufacturing of the earpiece testing fixture.

[0040] Furthermore, it also includes a mounting bracket 4 that connects to the fixing plate 1, the mounting bracket 4 being provided with fastening screws 5, the fastening screws 5 abutting against the end of the artificial ear 2 away from the pickup port 21.

[0041] As can be seen from the above description, after the fastening screw 5 is tightened, the artificial ear 2 can fit tightly against the fixing plate 1.

[0042] Furthermore, the mounting bracket 4 is generally U-shaped.

[0043] Furthermore, the fastening screw 5 is positioned corresponding to the central axis of the artificial ear 2.

[0044] As can be seen from the above description, the artificial ear 2 and the fixing plate 1 can fit together properly, which helps to ensure the accuracy of the test results.

[0045] Furthermore, the fixing plate 1 is provided with a positioning groove 13, which is connected to the test port 12, and a portion of the artificial ear 2 is located in the positioning groove 13.

[0046] As can be seen from the above description, the positioning slot 13 facilitates the positioning and installation of the artificial ear 2.

[0047] Please refer to Figures 1 to 3 One embodiment of this utility model is as follows: a handset testing fixture includes a fixing plate 1, an artificial ear 2, and an arc-shaped dust cover 3. The fixing plate 1 is provided with a connected placement groove 11 and a test port 12. The artificial ear 2 abuts against the fixing plate 1, and the pickup port 21 of the artificial ear 2 is connected to the test port 12. The arc-shaped dust cover 3 is connected to the fixing plate 1, and at least part of the arc-shaped dust cover 3 is located within the pickup port 21. In this embodiment, the entire area of ​​the arc-shaped dust cover 3 is located within the pickup port 21.

[0048] Preferably, the arc-shaped dust cover 3 has an outer edge 31, which is fixedly connected to the fixing plate 1, for example, by adhesive bonding.

[0049] The fixing plate 1 is provided with a positioning groove 13, which is connected to the test port 12, and a part of the artificial ear 2 is located in the positioning groove 13.

[0050] The fixing plate 1 includes a base plate 14 and a base 15. The placement groove 11 and the test port 12 are both provided on the base 15. The base plate 14 is provided with a mounting port for mounting the base 15. The base plate 14 and the base 15 are detachably connected. The arc-shaped dust cover 3 is connected to the base 15.

[0051] In detail, the base 15 includes a connected panel 151 and a frame 152. The test port 12 is disposed on the panel 151, and the arc-shaped dust cover 3 is connected to the panel 151. The hollow area of ​​the frame 152 is the placement groove 11. Specifically, the outer edge 31 is fixed to the panel 151. In one or more embodiments, the panel 151 and the frame 152 are detachably connected.

[0052] The earpiece testing fixture also includes a mounting bracket 4 connected to the fixing plate 1. The mounting bracket 4 is provided with fastening screws 5, which abut against the end of the artificial ear 2 away from the pickup port 21. In this embodiment, the mounting bracket 4 is generally U-shaped, and the fastening screws 5 are positioned corresponding to the central axis of the artificial ear 2.

[0053] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A handset testing fixture, characterized in that, include A fixing plate, wherein the fixing plate is provided with a connected placement slot and a test port; An artificial ear, wherein the artificial ear abuts against the fixing plate, and the pickup port of the artificial ear is connected to the test port; An arc-shaped dust cover is connected to the fixing plate, and at least part of the arc-shaped dust cover is located inside the pickup port.

2. The earpiece testing fixture according to claim 1, characterized in that, The arc-shaped dust cover has an extended edge, which is fixedly connected to the fixing plate.

3. The earpiece testing fixture according to claim 1, characterized in that, The entire area of ​​the arc-shaped dust cover is located within the microphone port.

4. The earpiece testing fixture according to claim 1, characterized in that, The fixing plate includes a base plate and a base. The placement groove and the test port are both provided on the base plate. The base plate is provided with a mounting port for mounting the base plate. The base plate and the base plate are detachably connected. The arc-shaped dust cover is connected to the base plate.

5. The earpiece testing fixture according to claim 4, characterized in that, The base includes a connected panel and a frame. The test port is located on the panel. The arc-shaped dust cover is connected to the panel. The hollow area of ​​the frame is the placement slot.

6. The earpiece testing fixture according to claim 5, characterized in that, The panel is detachably connected to the frame.

7. The earpiece testing fixture according to claim 1, characterized in that, It also includes a mounting bracket for connecting the fixing plate, the mounting bracket having fastening screws that abut against the end of the artificial ear away from the pickup port.

8. The earpiece testing fixture according to claim 7, characterized in that, The mounting bracket is U-shaped.

9. The earpiece testing fixture according to claim 7, characterized in that, The fastening screw is positioned corresponding to the central axis of the artificial ear.

10. The earpiece testing fixture according to claim 1, characterized in that, The fixing plate is provided with a positioning groove, which is connected to the test port, and a portion of the artificial ear is located in the positioning groove.

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