Loudspeaker module conduction test tool

Abstract

The utility model discloses a loudspeaker module conduction test tool comprising a pedestal, a lower conduction test assembly, a support arm, a lifting driving member, a pressing plate and an upper conduction test assembly, and the pedestal is provided with a plurality of placing grooves; the lower conduction test assembly is arranged on the base, the lower conduction test assembly comprises a load and two lower conduction probes electrically connected with the load, and one end of each lower conduction probe extends into the placement groove; the support arm is connected with the base; the lifting driving piece is arranged on the supporting arm; the pressing plate is located over the base and connected with the lifting driving piece. The upper conduction test assembly is arranged on the pressing plate and comprises four upper conduction probes, and one end of each upper conduction probe protrudes out of the bottom face of the pressing plate. The loudspeaker module conduction test tool is simple and novel in structure, can test the bridging function of the conduction FPC in the loudspeaker module, timely discovers whether the bridging circuit of the conduction FPC is short-circuited or open-circuited, and is beneficial to improving the yield of outgoing products.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures for testing electro-acoustic transducers, in particular to a conduction test tooling for a speaker module. Background Art

[0002] With the rapid development of mobile devices such as smart phones, the market demand for electro-acoustic transducers shows a continuous increasing trend.

[0003] More and more users hope that mobile devices such as smart phones have excellent sound quality performance. Therefore, some mobile devices begin to adopt a design scheme of a stereo sound system composed of multiple speaker modules. In the design scheme of the stereo sound system, sometimes there is a design in which the conduction FPC of one speaker module bridges another speaker module. For example Figure 1 and Figure 2 As shown, the speaker module 1 includes a module housing, a speaker unit disposed in the module housing, and a conduction FPC 11. One end of the conduction FPC 11 is provided with a first pad 12, a second pad 13, a third pad 14, and a fourth pad 15, and the other end is provided with a fifth pad 16 and a sixth pad 17. Among them, the first pad 12 and the second pad 13 are respectively connected to the positive electrode and the negative electrode of the speaker unit, the third pad 14 is connected to the fifth pad 16, the fourth pad 15 is connected to the sixth pad 17, and the fifth pad 16 and the sixth pad 17 are used to connect to another speaker module. Based on this design, during testing, it is necessary to test the conduction condition of the conduction FPC. However, at present, there is a lack of a conduction test tooling in the industry that can test the conduction FPC with a bridging function in a speaker module. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a conduction test tooling for a speaker module that can test the bridging function of the conduction FPC in the speaker module.

[0005] To solve the above technical problem, the technical solution adopted by the utility model is: a conduction test tooling for a speaker module, comprising:

[0006] A base, on which a plurality of placement grooves are provided;

[0007] A lower conduction test component, which is disposed on the base. The lower conduction test component includes a load and two lower conduction probes electrically connected to the load. One end of the lower conduction probe extends into the placement groove;

[0008] An arm, which connects the base;

[0009] A lifting driving member, which is disposed on the arm;

[0010] A pressure plate, which is located directly above the base, and the pressure plate is connected to the lifting drive member;

[0011] An upper conduction test assembly, which is arranged on the pressure plate. The upper conduction test assembly includes four upper conduction probes, and one end of the upper conduction probe protrudes from the bottom surface of the pressure plate.

[0012] Further, the number of the placement grooves, the number of the lower conduction test assemblies, and the number of the upper conduction test assemblies are all multiple, and the three are arranged in one-to-one correspondence.

[0013] Further, the placement grooves on the base are arranged in at least one row.

[0014] Further, the number of the placement grooves is four, and the four placement grooves are arranged in one row.

[0015] Further, a plurality of heightening pads are provided at the bottom of the base.

[0016] Further, a pressing block is provided on the bottom surface of the pressure plate, and the pressing block is arranged corresponding to the placement groove.

[0017] Further, the lifting drive member is a cylinder or an electric push rod.

[0018] Further, positioning columns are provided on the base, and positioning holes matching the positioning columns are provided on the pressure plate; or, positioning columns are provided on the pressure plate, and positioning holes matching the positioning columns are provided on the base.

[0019] The beneficial effects of the present utility model are as follows: The conduction test tooling for the speaker module of the present utility model has a simple and novel structure, can test the bridging function of the conductive FPC in the speaker module, and can timely detect whether there is a short circuit or open circuit in the bridging line of the conductive FPC, which is beneficial to improving the yield rate of the factory products and enhancing customer satisfaction; the conduction test tooling for the speaker module of the present utility model can realize semi-automatic testing, which is beneficial to improving the testing efficiency and reducing the testing cost. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a speaker module in the prior art;

[0021] Figure 2 It is a schematic structural diagram of the speaker module in the prior art from another perspective;

[0022] Figure 3 It is a schematic structural diagram of the conduction test tooling for the speaker module in the first embodiment of the present utility model;

[0023] Figure 4 For Figure 3Enlarged view of detail A

[0024] Reference numeral description:

[0025] 1. Speaker module; 11. Conductive FPC; 12. First pad; 13. Second pad; 14. Third pad; 15. Fourth pad; 16. Fifth pad; 17. Sixth pad;

[0026] 2. Base; 21. Placement groove; 22. Positioning post;

[0027] 3. Lower conduction test component; 31. Lower conduction probe;

[0028] 4. Support arm;

[0029] 5. Lifting drive member;

[0030] 6. Pressing plate;

[0031] 7. Upper conduction test component; 71. Upper conduction probe;

[0032] 8. Lifting spacer block. Specific implementation mode

[0033] To describe in detail the technical content, achieved purpose and effects of the present utility model, the following is described in conjunction with the implementation modes and with reference to the accompanying drawings.

[0034] Please refer to Figure 3 and Figure 4 , a conduction test tooling for a speaker module, comprising:

[0035] A base 2, on which a plurality of placement grooves 21 are provided;

[0036] A lower conduction test component 3, which is arranged on the base 2. The lower conduction test component 3 includes a load and two lower conduction probes 31 electrically connected to the load. One end of the lower conduction probe 31 extends into the placement groove 21;

[0037] A support arm 4, which connects the base 2;

[0038] A lifting drive member 5, which is arranged on the support arm 4;

[0039] A pressing plate 6, which is located directly above the base 2. The pressing plate 6 is connected to the lifting drive member 5;

[0040] An upper conduction test component 7, which is arranged on the pressing plate 6. The upper conduction test component 7 includes four upper conduction probes 71, and one end of the upper conduction probe 71 protrudes from the bottom surface of the pressing plate 6.

[0041] As can be seen from the above description, the beneficial effects of the present utility model are as follows: The conduction test tooling for the loudspeaker module has a simple and novel structure, can test the bridging function of the conductive FPC in the loudspeaker module, and can timely detect whether there is a short circuit or open circuit in the bridging circuit of the conductive FPC, which is beneficial to improving the yield rate of the products leaving the factory and enhancing customer satisfaction; the conduction test tooling for the loudspeaker module can realize semi-automatic testing, which is beneficial to improving the testing efficiency and reducing the testing cost.

[0042] Further, the number of the placement grooves 21, the number of the lower conduction test components 3, and the number of the upper conduction test components 7 are all multiple, and the three are arranged in one-to-one correspondence.

[0043] As can be seen from the above description, the conduction test tooling for the loudspeaker module can test multiple products simultaneously, which is beneficial to further improving the testing efficiency, reducing the testing energy consumption, and saving the testing cost.

[0044] Further, the placement grooves 21 on the base 2 are arranged in at least one row.

[0045] Further, the number of the placement grooves 21 is four, and the four placement grooves 21 are arranged in one row.

[0046] Further, a plurality of heightening pads 8 are provided at the bottom of the base 2.

[0047] As can be seen from the above description, the heightening pads 8 can heighten the base 2, so that the base 2 is separated from the tabletop, and the base 2 has enough space to arrange the lower conduction test components 3.

[0048] Further, a pressing block is provided on the bottom surface of the pressing plate 6, and the pressing block is arranged corresponding to the placement groove 21.

[0049] As can be seen from the above description, the pressing block is used to press the loudspeaker module located in the placement groove 21, so as to ensure to a certain extent that the conductive FPC in the loudspeaker module can be in contact conduction with the upper conduction test component 7 and the lower conduction test component 3, and ensure the smooth progress of the testing work.

[0050] Further, the lifting driving member 5 is a cylinder or an electric push rod.

[0051] As can be seen from the above description, the specific type of the lifting driving member 5 can be selected according to needs.

[0052] Further, positioning posts 22 are provided on the base 2, and positioning holes cooperating with the positioning posts 22 are provided on the pressing plate 6; alternatively, positioning posts 22 are provided on the pressing plate 6, and positioning holes cooperating with the positioning posts 22 are provided on the base 2.

[0053] As can be seen from the above description, the cooperation between the positioning posts 22 and the positioning holes enables the pressure plate 6 to be accurately aligned with the base 2, thereby ensuring that the upper conduction test component 7 can smoothly contact the conduction FPC in the speaker module.

[0054] Embodiment 1

[0055] Please refer to Figures 1 to 4 , Embodiment 1 of the present utility model is: A conduction test tool for a speaker module, used to assist in testing the conduction condition of the conduction FPC 11 in the speaker module 1 as shown in Figure 1 .

[0056] As shown in Figure 3 and Figure 4 , the conduction test tool for the speaker module includes a base 2, a lower conduction test component 3, a support arm 4, a lifting drive member 5, a pressure plate 6, and an upper conduction test component 7. The base 2 is provided with a plurality of placement grooves 21; the lower conduction test component 3 is disposed on the base 2, and the lower conduction test component 3 includes a load and two lower conduction probes 31 electrically connected to the load. One end of the lower conduction probe 31 extends into the placement groove 21; the support arm 4 is connected to the base 2; the lifting drive member 5 is disposed on the support arm 4, and the lifting drive member 5 can be a cylinder, an electric push rod, etc.; the pressure plate 6 is located directly above the base 2, and the pressure plate 6 is connected to the lifting drive member 5; the upper conduction test component 7 is disposed on the pressure plate 6, and the upper conduction test component 7 includes four upper conduction probes 71, and one end of the upper conduction probe 71 protrudes from the bottom surface of the pressure plate 6.

[0057] Specifically, the placement groove 21 is used to place the speaker module 1. Two of the lower conduction probes 31 in the lower conduction test component 3 are respectively used to contact and conduct with the fifth pad 16 and the sixth pad 17 of the conduction FPC 11 in the speaker module 1. Four of the upper conduction probes 71 in the upper conduction test component 7 are respectively used to contact and conduct with the first pad 12, the second pad 13, the third pad 14, and the fourth pad 15 of the conduction FPC 11 in the speaker module 1.

[0058] During the test, the speaker module 1 is placed in the placement groove 21, and the fifth pad 16 and the sixth pad 17 of the conduction FPC 11 are respectively in contact with the two lower conduction probes 31; the third pad 14 and the fourth pad 15 are electrically connected to an external test device; then the lifting drive member 5 is activated to press down the pressure plate 6, and the four upper conduction probes 71 respectively contact the first pad 12, the second pad 13, the third pad 14, and the fourth pad 15. The four upper conduction probes 71 are energized, and the external test device can test whether the bridging circuit of the conduction FPC 11 is normal.

[0059] In an actual loudspeaker module 1 product, conduction elastic pieces can be respectively welded to the fifth pad 16 and the sixth pad 17 of the conduction FPC 11. At this time, the lower conduction probe 31 is in contact conduction with the conduction elastic piece.

[0060] The number of the placement grooves 21, the number of the lower conduction test components 3, and the number of the upper conduction test components 7 in the loudspeaker module conduction test tooling are respectively multiple, and the three are arranged in one-to-one correspondence. At this time, the placement grooves 21 on the base 2 are arranged in at least one row. In this embodiment, the number of the placement grooves 21 is four, and the four placement grooves 21 are arranged in one row. That is to say, the loudspeaker module conduction test tooling in this embodiment can simultaneously test the conduction FPC 11 in four loudspeaker modules 1.

[0061] Optionally, a plurality of heightening pads 8 are provided at the bottom of the base 2.

[0062] To enable the pressing plate 6 to better press the loudspeaker module 1 located in the placement groove 21, a pressing block is provided on the bottom surface of the pressing plate 6. The pressing block is arranged corresponding to the placement groove 21, and the pressing block is used to press the loudspeaker module 1 located in the placement groove 21.

[0063] Positioning posts 22 are provided on the base 2, and positioning holes matching the positioning posts 22 are provided on the pressing plate 6; of course, it is also possible to arrange the positioning posts 22 on the pressing plate 6 and arrange the positioning holes matching the positioning posts 22 on the base 2.

[0064] In summary, the loudspeaker module conduction test tooling provided by the present invention has a simple and novel structure, can test the bridging function of the conduction FPC in the loudspeaker module, and can timely detect whether the bridging circuit of the conduction FPC has short circuit or open circuit phenomena, which is beneficial to improving the yield rate of the factory products and enhancing customer satisfaction; this loudspeaker module conduction test tooling can realize semi-automatic testing, which is beneficial to improving the testing efficiency and reducing the testing cost.

[0065] The above are only the embodiments of the present invention, and thus do not limit the patent scope of the present invention. Any equivalent transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in the related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A speaker module conduction test tool, characterized in that: include A base, wherein a plurality of placement slots are provided on the base; A lower conduction test assembly, the lower conduction test assembly is arranged on the base, the lower conduction test assembly comprises a load and two lower conduction probes electrically connected to the load, one end of the lower conduction probe extends into the placement groove; A support arm, the support arm being connected to the base; A lifting drive member, wherein the lifting drive member is arranged on the support arm; A pressing plate, the pressing plate is located directly above the base, and the pressing plate is connected to the lifting drive member; An upper conduction test assembly is arranged on the pressing plate, and the upper conduction test assembly includes four upper conduction probes, one end of each upper conduction probe is protruding from the bottom surface of the pressing plate.

2. The speaker module continuity test fixture according to claim 1, characterized in that: The number of the placement slots, the number of the lower continuity test components and the number of the upper continuity test components are multiple respectively, and the three are arranged in a one-to-one correspondence.

3. The speaker module continuity test fixture according to claim 2, characterized in that: The placement grooves on the base are arranged in at least one row.

4. The speaker module continuity test fixture according to claim 3, characterized in that: The number of the placement slots is four, and the four placement slots are arranged in a row.

5. The speaker module continuity test fixture according to claim 1, characterized in that: A plurality of elevated cushion blocks are arranged at the bottom of the base.

6. The speaker module continuity test fixture according to claim 1, characterized in that: A pressing block is disposed on the bottom surface of the pressing plate, and the pressing block is disposed corresponding to the placement groove.

7. The speaker module continuity test fixture according to claim 1, characterized in that: The lifting drive member is a cylinder or an electric push rod.

8. The speaker module continuity test fixture according to claim 1, characterized in that: The base is provided with a positioning column, and the pressure plate is provided with a positioning hole matched with the positioning column; or the pressure plate is provided with a positioning column, and the base is provided with a positioning hole matched with the positioning column.

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