CN217546298U

CN217546298U - Miniature speaker test fixture

Info

Publication number: CN217546298U
Application number: CN202220468918.9U
Authority: CN
Inventors: 吴国侦; 周威龙
Original assignee: Weishi Technology Co ltd
Current assignee: Weishi Technology Co ltd
Priority date: 2022-03-04
Filing date: 2022-03-04
Publication date: 2022-10-04
Anticipated expiration: 2032-03-04

Abstract

The utility model discloses a miniature speaker test fixture, including the base, range upon range of two closing plates that are equipped with on the base, still be equipped with the apron that covers on the closing plate on the base, be equipped with the sound outlet that runs through on base and the apron respectively, be equipped with the location on the closing plate and lead to the groove respectively, the apron has the ring channel and the logical intercommunication of location that encircle the closing plate, and the interval is equipped with two FPC and FPC stretch into the location and lead to the inslot between two closing plates. The utility model provides a miniature speaker test fixture can test same speaker monomer two sides respectively, has satisfied the free listening test demand of speaker that has two vibrating diaphragm structures, need not to change test fixture in the testing process to convenient operation promotes efficiency of software testing.

Description

Miniature speaker test fixture

Technical Field

The utility model relates to a test equipment technical field especially relates to a miniature speaker test fixture.

Background

The micro-speaker is an electroacoustic conversion device widely applied to electronic products such as smart phones, smart watches and tablet computers, and in order to improve the experience of consumers, the micro-speaker with a double-diaphragm structure appears on the market so as to improve the tone quality of the micro-speaker.

Because the two opposite sides of the micro-speaker with the double-diaphragm structure sound together, the two sides of the micro-speaker need to listen sound respectively when the performance test is carried out, the existing test equipment can only carry out the test from one side of the micro-speaker, and the miniature loudspeaker with double-diaphragm structure can interfere the other side when one side of the miniature loudspeaker is sounded during operation, and the test data acquisition of the test equipment is influenced, so that the test requirement of the miniature loudspeaker with double-diaphragm structure cannot be met by the existing test equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that: the micro loudspeaker testing tool can meet the testing requirement of the micro loudspeaker with the double vibrating diaphragms.

In order to solve the technical problem, the utility model discloses a technical scheme be: the utility model provides a miniature speaker test fixture, includes the base, and the range upon range of is equipped with two closing plates on the base, still is equipped with the apron that covers on the closing plate on the base, is equipped with the sound outlet that runs through on base and the apron respectively, is equipped with the logical groove of location on the closing plate respectively, and the apron has the ring channel and the logical groove intercommunication of location that encircle the closing plate, and the interval is equipped with two FPC and FPC between two closing plates and stretches into the logical inslot of location.

Furthermore, the base and the cover plate are respectively provided with a first protruding positioning column, and the sealing plate is respectively provided with a first positioning hole matched with the first positioning column.

Furthermore, two the one side that the closing plate is close to each other is equipped with respectively and holds FPC's storage tank, the storage tank with the location is led to the groove intercommunication, and two on the closing plate the storage tank is close to respectively the relative both ends setting that the groove was led to in the location sets up.

Furthermore, a second protruding positioning column is arranged in the accommodating groove, and a second positioning hole matched with the second positioning column is formed in the FPC.

Furthermore, the surfaces, close to each other, of the two sealing plates are respectively provided with a groove for communicating the annular groove with the positioning through groove, and the grooves in the two sealing plates are aligned.

Furthermore, the cover plate is also provided with a run-through air leakage hole, and the air leakage hole is communicated with the annular groove.

Furthermore, a first sealing ring is arranged between the cover plate and the base, and the first sealing ring is arranged around the edge of the cover plate.

Furthermore, a second sealing ring is arranged between the base and the sealing plate, and the second sealing ring surrounds the sound outlet on the base.

Furthermore, a third sealing ring is arranged between the cover plate and the sealing plate, and the third sealing ring surrounds the sound outlet on the cover plate.

Furthermore, an elbow clamp is further arranged on the base and abuts against the cover plate to drive the cover plate to move towards the direction close to the base.

The beneficial effects of the utility model reside in that: the utility model provides a miniature speaker test fixture passes through the base, the cavity of simulation speaker monomer work is constituteed in the cooperation of two closing plates and apron, be equipped with the sound outlet on base and the apron respectively, and set up the location logical groove that is used for advancing line location to the speaker monomer on two closing plates respectively, it is equipped with the ring channel and location logical groove intercommunication to surround the location logical groove on the apron, make the free relative both sides of speaker all can normally sound, avoid mutual interference, be equipped with two FPC that switch-on respectively with the speaker monomer between two closing plates, put into behind the miniature speaker test fixture with the speaker monomer with one of them FPC switch-on in order to gather the speaker monomer data when one side of them moves, turn over the speaker monomer and put into miniature speaker test fixture after the detection completion and can make another FPC switch on and gather the data that speaker monomer another side moved with the speaker monomer, adopt miniature speaker test fixture to test respectively same speaker monomer's both sides, the listening test demand of the speaker monomer that has two vibrating diaphragm structures has been satisfied, need not change test fixture in the testing process, in order to make things convenient to operate, and promote efficiency of software testing.

Drawings

Fig. 1 is a schematic structural view of a micro speaker testing tool according to a first embodiment of the present invention;

fig. 2 is an exploded view of a testing tool for a micro-speaker according to a first embodiment of the present invention;

fig. 3 is a cross-sectional view of a testing tool for a micro-speaker according to a first embodiment of the present invention;

fig. 4 is a schematic structural view of a base in the testing tool for the micro-speaker according to the present invention;

fig. 5 is a schematic structural view of a cover plate in a testing tool for a micro-speaker according to a first embodiment of the present invention;

fig. 6 is an exploded view of a partial structure in the testing tool for a micro-speaker according to the first embodiment of the present invention;

fig. 7 is a cross-sectional view of another cross-section of the testing tool for micro-speakers according to the first embodiment of the present invention.

Description of reference numerals:

1. a base; 11. a first seal ring; 12. a second seal ring; 13. a third seal ring; 14. an elbow clip; 15. a position avoiding groove; 16. a first positioning post; 17. profiling grooves; 2. sealing plates; 21. positioning a through groove; 22. a first positioning hole; 23. via holes (ii) a; 24. a containing groove; 25. a second positioning column; 26. a groove; 3. a cover plate; 31. an annular groove; 32. a sound outlet; 33. an air release hole; 34. mounting holes; 35. an annular projection; 36. a notch; 4. FPC; 41. a second positioning hole; 5. a speaker unit.

Detailed Description

In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 7, a micro speaker testing tool includes a base 1, two sealing plates 2 are stacked on the base 1, a cover plate 3 covering the sealing plates 2 is further disposed on the base 1, sound outlets 32 penetrating through the base 1 and the cover plate 3 are respectively disposed on the base 1 and the cover plate 3, positioning through grooves 21 are respectively disposed on the sealing plates 2, the cover plate 3 has annular grooves 31 surrounding the sealing plates 2 and the annular grooves 31 are communicated with the positioning through grooves 21, two FPCs 4 are disposed between the two sealing plates 2 at intervals, and the FPCs 4 extend into the positioning through grooves 21.

From the above description, the beneficial effects of the present invention are: the utility model provides a miniature speaker test fixture can test same speaker monomer 5's two sides respectively, has satisfied the listening test demand of the speaker monomer 5 who has two vibrating diaphragm structures, need not to change test fixture in the testing process to convenient operation, and promote efficiency of software testing.

Further, the base 1 and the cover plate 3 are respectively provided with a first positioning column 16, and the sealing plate 2 is respectively provided with a first positioning hole 22 matched with the first positioning column 16.

As can be seen from the above description, the sealing plates 2 and the base 1 or the cover plate 3 are positioned by the first positioning posts 16 and the first positioning holes 22, so that the two sealing plates 2 are aligned with the base 1 and the cover plate 3, respectively, which is convenient for assembling the testing tool for micro-speakers.

Furthermore, two the one side that closing plate 2 is close to each other is equipped with respectively and holds FPC 4's storage tank 24, storage tank 24 with the groove 21 intercommunication is led to in the location, and two on the closing plate 2 storage tank 24 is close to respectively the relative both ends setting of the groove 21 is led to in the location.

As can be seen from the above description, the FPC4 is accommodated through the accommodating groove 24 provided on the sealing plate 2, so that the FPC4 is kept stable in position on the sealing plate 2, and it is ensured that the speaker unit 5 is stably conducted with the FPC4 after being placed into the micro speaker testing tool, and the two FPCs 4 are respectively located at the opposite ends of the positioning through groove 21, so that the speaker unit 5 is respectively connected with the two FPCs 4 before and after being turned over.

Further, a second positioning column 25 protruding from the accommodating groove 24 is disposed in the accommodating groove, and a second positioning hole 41 matched with the second positioning column 25 is disposed on the FPC 4.

As can be seen from the above description, the second positioning hole 41 on the FPC4 is matched with the second positioning post 25 disposed in the accommodating groove 24 to position the FPC4, so as to prevent the FPC4 from moving unexpectedly to cause poor contact between the FPC4 and the speaker unit 5.

Further, the surfaces, close to each other, of the two sealing plates 2 are respectively provided with a groove 26 for communicating the annular groove 31 with the positioning through groove 21, and the grooves 26 on the two sealing plates 2 are aligned.

As can be seen from the above description, the grooves 26 are provided on the sealing plates 2, and the grooves 26 on the two sealing plates 2 are aligned, so that the annular groove 31 is stably communicated with the positioning through groove 21.

Further, the cover plate 3 is further provided with a through air release hole 33, and the air release hole 33 is communicated with the annular groove 31.

As can be seen from the above description, the cover plate 3 is provided with the air release hole 33 communicated with the annular groove 31 to realize one-way air release, so as to ensure that the working state of the speaker unit 5 on the micro-speaker test fixture is consistent with the actual situation.

Further, a first sealing ring 11 is arranged between the cover plate 3 and the base 1, and the first sealing ring 11 is arranged around the edge of the cover plate 3.

As is apparent from the above description, the first sealing ring 11 is provided between the cover plates 3 and the base 1 to seal the contact position between the cover plates 3 and the base 1, thereby preventing air leakage.

Further, a second sealing ring 12 is arranged between the base 1 and the sealing plate 2, and the second sealing ring 12 is arranged around the sound outlet 32 on the base 1.

As can be seen from the above description, the second sealing ring 12 is disposed between the base 1 and the sealing plate 2, so that the edge of the sound outlet 32 on the base 1 is kept closed to prevent air leakage.

Further, a third sealing ring 13 is arranged between the cover plate 3 and the sealing plate 2, and the third sealing ring 13 is arranged around the sound outlet 32 on the cover plate 3.

As can be seen from the above description, the third sealing ring 13 is used to fill the gap between the cover plate 3 and the sealing plate 2 to prevent air leakage at the sound outlet 32 of the cover plate 3.

Further, an elbow clip 14 is further arranged on the base 1, and the elbow clip 14 abuts against the cover plate 3 and drives the cover plate 3 to move towards the direction close to the base 1.

As can be seen from the above description, the toggle clamps 14 provided on the base 1 are used to press the cover plate 3 against the base 1 to prevent the cover plate 3 or the sealing plate 2 from moving during the test and to ensure a seamless fit of the cover plate 3, the sealing plate 2, and the base 1.

Example one

Referring to fig. 1 to 7, a first embodiment of the present invention is: a micro loudspeaker test tool is used for listening test on the performance of a loudspeaker single body 5 with a double-diaphragm structure.

As shown in fig. 1 and 2, the micro speaker testing tool includes a base 1, two sealing plates 2 are stacked on the base 1, a cover plate 3 is further disposed on the base 1, the cover plate 3 covers the sealing plates 2, the base 1 and the cover plate 3 are respectively provided with a sound outlet 32 exposed on one surface of the speaker unit 5, two sealing plates 2 are respectively provided with a positioning through groove 21 for positioning the speaker unit 5, the positioning through groove 21 is communicated with the sound outlet 32, an annular groove 31 communicated with the positioning through groove 21 is disposed in the cover plate 3, the annular groove 31 surrounds the positioning through groove 21, two FPCs 4 are further disposed between the two sealing plates 2 at intervals, the two FPCs 4 respectively partially extend into the positioning through groove 21, and the FPCs 4 are used for electrifying the speaker unit 5 placed in the positioning through groove 21 and connecting the speaker unit 5 with a detection instrument.

Specifically, when the micro speaker testing tool is used for detecting the speaker monomer 5, one of the sealing plate 2, the speaker monomer 5 to be tested, the other sealing plate 2 and the cover plate 3 are placed on the base 1, the speaker monomer 5 to be tested is placed on the two sealing plates 2, a cavity simulating the working environment of the speaker monomer 5 with a double-diaphragm structure can be formed in the positioning through groove 21, at this time, one of the FPC4 is in contact with and conducted on the speaker monomer 5, relevant data in the operation process of one side of the speaker monomer 5 can be collected through a detection instrument, the speaker monomer 5 is taken out and turned over by 180 degrees after the test is completed, the micro speaker testing tool is reassembled according to the steps, the speaker monomer 5 is in contact with the other FPC4 and conducted, relevant data in the operation process of the other side of the speaker monomer 5 can be collected through the detection instrument at this time, faults of the speaker monomer 5 can be eliminated according to the measured result, defective products can be screened out, that the micro speaker testing tool can be used for respectively testing two sides of the same speaker monomer 5, the requirement of testing of the speaker monomer 5 with double-diaphragm structure is met, the detection requirement of sound-changing of the testing tool, and the testing efficiency is improved, and the testing efficiency is convenient to be improved.

With reference to fig. 4 to 7, in order to facilitate assembly and disassembly of the micro-speaker test fixture, the base 1 is fixedly connected to one of the sealing plates 2, the cover plate 3 is fixedly connected to the other sealing plate 2, the base 1 and the cover plate 3 are respectively provided with a mounting hole 34, the two sealing plates 2 are respectively provided with a via hole 23 aligned with the mounting hole 34, and screws are provided for the via holes 23 to pass through the sealing plates 2 to be matched with the mounting holes 34 of the base 1 or the cover plate 3, so that the base 1 is fixedly connected to one of the sealing plates 2, the cover plate 3 and the other sealing plate 2, the base 1 is integrally formed with one of the sealing plates 2, and the cover plate 3 is integrally formed with the other sealing plate 2.

In detail, the base 1 and the cover plate 3 are respectively provided with a first protruding positioning post 16, the sealing plate 2 is respectively provided with a first positioning hole 22 matched with the first positioning post 16, the sealing plate 2 and the base 1 or the cover plate 3 are positioned by matching the first positioning post 16 with the first positioning hole 22, so that the two sealing plates 2 are respectively aligned with the base 1 and the cover plate 3, and the two sealing plates 2 are respectively assembled with the cover plate 3 and the base 1 into a whole.

Referring to fig. 2 and 3, in order to maintain the sealed chamber enclosed by the micro-speaker testing tool, the micro-speaker testing tool further includes a first sealing ring 11, a second sealing ring 12, and a third sealing ring 13, wherein the first sealing ring 11 is located between the cover plate 3 and the base 1 and is disposed around the edge of the cover plate 3 to seal the position where the cover plate 3 contacts the base 1, an annular protrusion 35 is disposed on the edge of one surface of the cover plate 3 close to the base 1 to press the first sealing ring 11 against the base 1, the second sealing ring 12 is located between the base 1 and the sealing plate 2, the second sealing ring 12 is disposed around the sound outlet 32 on the base 1 to prevent air leakage at the sound outlet 32 on the base 1, and the third sealing ring 13 is located between the cover plate 3 and the sealing plate 2 and is disposed around the sound outlet 32 on the cover plate 3 to maintain the edge of the sound outlet 32 on the cover plate 3 closed, so as to ensure that the speaker unit 5 stably operates in the chamber enclosed by the base 1, the two sealing plates 2, and the cover plate 3.

As shown in fig. 3, 4 and 6, two faces of the sealing plate 2, which are close to each other, are respectively provided with a receiving groove 24 for receiving the FPC4, the base 1 is provided with a avoiding groove 15 for receiving a portion of the FPC4 extending out of the cavity, the annular protrusion 35 is provided with a notch 36 for the FPC4 to pass through, the FPC4 is installed in the receiving groove 24, and the receiving groove 24 is communicated with the positioning through groove 21, so that the position of the FPC4 on the sealing plate 2 is kept stable, and the speaker unit 5 is ensured to be stably conducted with the FPC4 after being placed in the micro-speaker testing tool. And two on the closing plate 2 the storage tank 24 is close to respectively the relative both ends setting of location logical groove 21, two simultaneously in the seal groove FPC 4's binding post's orientation is opposite to can respectively with two around making speaker monomer 5 upset 180 FPC4 contact switches on.

In detail, a second positioning column 25 protruding from the inside of the accommodating groove 24 is arranged, a second positioning hole 41 matched with the second positioning column 25 is formed in the FPC4, the FPC4 is positioned by matching the second positioning column 25 with the second positioning hole 41 after the FPC4 is installed in the accommodating groove 24, and the FPC4 is prevented from being undesirably moved to cause poor contact between the FPC4 and the speaker unit 5.

Please combine fig. 5 and fig. 6, two the one side that sealing plate 2 is close to each other is equipped with recess 26 respectively, two after the miniature speaker test fixture assembly the recess 26 on the sealing plate 2 aligns so that ring channel 31 with the logical 21 intercommunication in location, apron 3 still are equipped with the disappointing hole 33 that runs through, disappointing hole 33 with ring channel 31 intercommunication is in order to realize one-way disappointing, ensures that speaker monomer 5 is in operating condition on the miniature speaker test fixture is unanimous with actual conditions, just on the apron 3 disappointing hole 33 is kept away from the one end of sealing plate 2 covers and is stamped the screen cloth to debris such as dust in preventing the environment fall into in the miniature speaker test fixture.

As shown in fig. 1 and 3, an elbow clip 14 for fixing the position of the cover plate 3 is further disposed on the base 1, the elbow clip 14 abuts against the cover plate 3 and drives the cover plate 3 to move toward the direction close to the base 1, so as to press the cover plate 3 onto the base 1 to prevent the cover plate 3 or the sealing plate 2 from moving unexpectedly during the test, and the two sealing plates 2 are made of silica gel respectively, so as to ensure that the cover plate 3, the two sealing plates 2 and the base 1 are in seamless fit.

Example two

Referring to fig. 4, the second embodiment of the present invention provides another technical solution for the structure of the base 1 based on the first embodiment, which is different from the first embodiment only in the structure of the base 1.

As shown in fig. 4, the base 1 is further provided with a contour groove 17 adapted to the shape of the cover plate, and when the speaker unit and the whole body formed by the sealing plate and the cover plate are sequentially assembled to the whole body formed by the base 1 and the sealing plate, the cover plate is attached to the inner peripheral wall of the contour groove 17 to position the cover plate, so that the two sealing plates are aligned, and the speaker unit is respectively matched with the positioning through grooves on the two sealing plates, thereby facilitating the placement of the speaker unit into the micro-speaker testing tool.

To sum up, the utility model provides a miniature speaker test fixture adopts to set up two sealing plates and apron on the base and encloses into the cavity that holds the speaker monomer, makes the both sides of speaker monomer sound production all can be through setting up the sound outlet normal sound production on base and apron to simulate the free operational environment of speaker, and communicate speaker monomer and detecting instrument and carry out the listening test to the speaker monomer through FPC, can get rid of the trouble of this speaker monomer and select the defective products according to the measured data, satisfied the listening test demand of the speaker monomer that has the double-diaphragm structure; two FPCs are arranged at intervals in the micro loudspeaker testing tool, the loudspeaker monomer to be tested is placed in the micro loudspeaker testing tool and then conducted with one of the FPCs, relevant data in the operation process of one side of the loudspeaker monomer can be collected through the detecting instrument at the moment, the loudspeaker monomer is taken out and turned over for 180 degrees after the test is completed, then the loudspeaker monomer is contacted with the other FPC and conducted, relevant data in the operation process of the other side of the loudspeaker monomer can be collected through the detecting instrument at the moment, the two sides of the same loudspeaker monomer can be respectively tested through the micro loudspeaker testing tool, the testing tool does not need to be replaced in the detection process, the operation is convenient, and the testing efficiency is improved.

The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims

1. The utility model provides a miniature speaker test fixture, includes the base, its characterized in that: the range upon range of two closing plates that are equipped with on the base, still be equipped with the apron that covers on the closing plate on the base, be equipped with the sound outlet that runs through on base and the apron respectively, be equipped with the location respectively on the closing plate and lead to the groove, the apron has the ring channel and the logical intercommunication of location that encircle the closing plate, and the interval is equipped with two FPC and FPC between two closing plates and stretches into the logical inslot of location.

2. The micro-speaker test tool of claim 1, wherein: the base reaches be equipped with convex first reference column on the apron respectively, be equipped with on the closing plate respectively with first reference column matched with first reference hole.

3. The micro-speaker test tool according to claim 1, wherein: two the one side that the closing plate is close to each other is equipped with respectively and holds FPC's storage tank, the storage tank with the logical groove intercommunication of location, and two on the closing plate the storage tank is close to respectively the relative both ends setting of the logical groove of location.

4. The micro-speaker test tool of claim 3, wherein: a second protruding positioning column is arranged in the accommodating groove, and a second positioning hole matched with the second positioning column is formed in the FPC.

5. The micro-speaker test tool according to claim 1, wherein: and the surfaces, close to each other, of the two sealing plates are respectively provided with a groove for communicating the annular groove with the positioning through groove, and the grooves on the two sealing plates are aligned.

6. The micro-speaker test tool of claim 1, wherein: the cover plate is also provided with a run-through air leakage hole which is communicated with the annular groove.

7. The micro-speaker test tool according to claim 1, wherein: the cover plate and the base are provided with a first sealing ring, and the first sealing ring is arranged around the edge of the cover plate.

8. The micro-speaker test tool according to claim 1, wherein: and a second sealing ring is arranged between the base and the sealing plate, and the second sealing ring surrounds the sound outlet on the base.

9. The micro-speaker test tool of claim 1, wherein: and a third sealing ring is arranged between the cover plate and the sealing plate, and the third sealing ring surrounds the sound outlet on the cover plate.

10. The micro-speaker test tool of claim 1, wherein: the base is further provided with an elbow clamp, and the elbow clamp abuts against the cover plate and drives the cover plate to move towards the direction close to the base.