CN219834381U - Miniature speaker aging test frock and system - Google Patents

Abstract

The utility model discloses a miniature loudspeaker aging test fixture, which comprises: the test device comprises a substrate and a plurality of test assemblies, wherein the test assemblies comprise probes and indicator lamps which are connected in series, and the probes and the indicator lamps are arranged on the substrate; one end of the probe is electrically connected with the test signal generator, and the other end of the probe is contacted with a product to be tested. Correspondingly, the utility model also discloses a micro-speaker aging test system, which comprises the micro-speaker aging test tool, and the micro-speaker aging test tool designed by the utility model not only can directly and accurately judge whether the circuit from the test signal generator to the micro-speaker aging test tool and the micro-speaker aging test tool to the product to be tested is normally conducted or not, but also can effectively detect the problem that the circuit cannot be conducted, and has good popularization prospect and application value.

Description

Miniature speaker aging test frock and system

Technical Field

The utility model relates to the technical field of test equipment, in particular to a miniature loudspeaker aging test tool and a miniature loudspeaker aging test system.

Background

As is known, in the course of production of such electronic products, micro-loudspeakers may have potential drawbacks, which can be found to work properly during short periods of use, but which may expose a series of problems as the working time increases. Therefore, when actually producing and preparing the micro-speaker, an aging test is generally required to be performed on the micro-speaker, and the aging test is helpful to find potential defects of the micro-speaker product, so as to improve the reliability of the product.

Currently, a burn-in test for a micro speaker generally requires a burn-in test fixture, which can accommodate a plurality of products to be tested and detect them simultaneously. When detecting, the miniature loudspeaker aging test fixture can be connected with the test signal generator, and the product to be tested can be contacted with the probe of the miniature loudspeaker aging test fixture, so that a conduction loop from the test signal generator to the miniature loudspeaker aging test fixture and from the miniature loudspeaker aging test fixture to the product to be tested is realized. It is important to keep the circuit on during the aging test of the micro-speaker, if the circuit is broken, misjudgment is likely to occur, and the circuit can misjudge defective products as qualified products and flow to the client to cause customer complaints.

At present, the common reasons for causing the short circuit of the conduction loop mainly include the following three types: 1. the test signal generator fails; 2. broken wires appear in the miniature loudspeaker aging test tool; 3. the micro-speaker product itself fails internally. In fact, a certain number of conduction indicator lamps are arranged in the existing test signal generator, when a certain loop is short-circuited, one of the indicator lamps is turned off, but due to the problem of wiring, by utilizing the conduction indicator lamps arranged in the existing test signal generator, it is generally impossible to accurately judge which micro-speaker product is not conducted.

In order to further identify which micro-speaker product is problematic, the methods currently used by operators are: (1) Before aging is finished, an operator controls the finger of the operator to lightly touch the middle paste of the micro-speaker product, and if the middle paste vibrates, the micro-speaker product is electrified; if the middle paste of the micro loudspeaker product does not vibrate, the product is not conducted with the ageing test tool and the loop of the test signal generator; (2) For the miniature loudspeaker product of miniature loudspeaker ageing test frock just takes out, operating personnel touches the yoke of miniature loudspeaker product with the hand, if the yoke send out scalds then demonstrate this product and ageing test frock and test signal generator's return circuit conduction, this product ageing, otherwise demonstrate the return circuit non-conduction.

It is found that both the above methods have certain drawbacks, and for the above method (1), since the aging test of a plurality of micro speakers is performed simultaneously and gives out a "noise" with high volume, the aging test of the micro speakers is usually performed in a room subjected to noise elimination treatment, but if the product is required to be touched during the aging test, it is indicated that the operator needs to be directly exposed to the "noise", and at this time, although the ear plugs are worn, irreversible damage may be caused to the ears of the operator; with the method (2), since the single aging time is generally long, it is not guaranteed that the yoke can be checked in time after each aging is finished, and a lot of manpower is consumed.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows: the utility model provides a miniature speaker ageing test frock and system, it not only can simply, directly, accurately judge whether the circuit of electric current from test signal generator to ageing test frock, ageing test frock to the product that awaits measuring switches on normally, can also effectively find out the problem place when the circuit can't switch on, and it has good popularization prospect and using value.

In order to solve the technical problems, the utility model adopts the following technical scheme: a miniature speaker burn-in fixture, comprising: the test device comprises a substrate and a plurality of test assemblies, wherein the test assemblies comprise probes and indicator lamps which are connected in series, and the probes and the indicator lamps are arranged on the substrate; one end of the probe is electrically connected with the test signal generator, and the other end of the probe is contacted with a product to be tested.

Furthermore, in the miniature loudspeaker aging test tool disclosed by the utility model, the other end of the probe is contacted with a product to be tested through a contact.

Furthermore, in the micro-speaker burn-in fixture of the present utility model, the fixture further comprises a bottom plate, wherein the bottom plate is fixedly provided with a product to be tested, and the bottom plate is connected with the substrate, so that the product to be tested is contacted with the probe of the test assembly.

Furthermore, in the aging test fixture for the micro-speaker, the substrate is provided with the first positioning hole, the bottom plate is provided with the second positioning hole, and the first positioning hole is fixedly connected with the second positioning hole through a bolt.

Furthermore, in the miniature loudspeaker aging test tool disclosed by the utility model, the bottom plate is also provided with the mounting groove, and the mounting groove is used for mounting and fixing the product to be tested.

Furthermore, in the micro-speaker aging test tool disclosed by the utility model, the mounting groove is a rectangular mounting groove.

Furthermore, in the miniature loudspeaker aging test fixture disclosed by the utility model, the bottom plate is further provided with the positioning column, and a third positioning hole correspondingly matched with the positioning column is further formed in the surface of one side of the substrate, which is close to the bottom plate.

Furthermore, in the aging test fixture for the micro-speaker, two positioning columns are arranged on the bottom plate in pairs, and two third positioning holes which are correspondingly matched with the positioning columns are arranged on the substrate.

Furthermore, in the aging test tool for the micro-speaker provided by the utility model, the positioning column is a cylindrical positioning column.

Correspondingly, the utility model also discloses a micro-speaker aging test system, which specifically comprises the micro-speaker aging test tool. Therefore, the miniature loudspeaker aging test system can simply, directly and accurately judge whether the circuit from the test signal generator to the aging test tool and from the aging test tool to the product to be tested is normally conducted or not.

The utility model has the beneficial effects that: the inventor makes the improvement on the basis of current miniature speaker ageing test fixture, and it has all set up the pilot lamp in every test assembly to pilot lamp and probe series connection in the control every test assembly. Through such setting, when the return circuit of test signal generator to probe, probe to the product under test normally switches on, there is the electric current to pass through the pilot lamp, and the pilot lamp in this test module can be bright this moment, otherwise can be in the state of extinguishing. Therefore, whether the loop is normally conducted can be directly and accurately judged by watching the lighting condition of the indicator lamp in the test assembly corresponding to each product to be tested on the aging test tool.

Correspondingly, when the condition that the lamp is extinguished and not on occurs, the problem in which part of the test signal generator, the test tool and the product to be tested is judged to occur can be judged through a control variable method, such as a mode of replacing the product to be tested or replacing the product to be tested with the condition that the indicator lamp is not on to another test assembly on the substrate for re-testing.

In addition, when the miniature loudspeaker aging test tool designed by the utility model is used for aging test, an operator can judge whether the loop is conducted or not only by looking at the lighting condition of the tool indicator lamp in the appearance of the anechoic room, and compared with the condition that the miniature loudspeaker aging test tool is directly exposed in 'noise', the miniature loudspeaker aging test tool can better protect the health of the ears of the operator and is more convenient.

Drawings

FIG. 1 is a schematic view of a micro-speaker burn-in test tool according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of the structure shown in FIG. 1 at A;

FIG. 3 is an exploded view of a micro-speaker burn-in test tool according to the present utility model at a single viewing angle in one embodiment;

fig. 4 is an exploded view of a micro-speaker burn-in test tool according to the present utility model at another view angle in one embodiment.

Description of the reference numerals:

1. a substrate; 11. a first positioning hole; 12. third positioning hole

2. A testing component; 21. a probe; 22. an indicator light;

3. a bottom plate; 31. a second positioning hole; 32. a mounting groove; 33. and positioning columns.

Detailed Description

In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

Referring to fig. 1 to 4, the present utility model provides a micro-speaker burn-in testing tool, which includes: a substrate 1 and a plurality of test assemblies 2, wherein the test assemblies 2 comprise probes 21 and indicator lamps 22 which are connected in series, and the probes 21 and the indicator lamps 22 are arranged on the substrate 1; wherein, one end of the probe 21 is electrically connected with the test signal generator, and the other end of the probe 21 is contacted with the product to be tested.

From the above description, it can be seen that the most critical idea of the utility model is: the inventor makes an improvement on the existing micro-speaker burn-in fixture, which is provided with an indicator light 22 in each test assembly 2, and controls the indicator light 22 in each test assembly 2 to be connected in series with the probe 21. By such an arrangement, when the loop from the test signal generator to the probe 21 and the probe 21 to the product to be tested is normally conducted, current will flow through the indicator lamp 22, and the indicator lamp 22 in the test assembly 2 will be on, otherwise will be off. Therefore, whether the loop is normally conducted can be directly and accurately judged by watching the lighting condition of the indicator lamp 22 in the test assembly 2 corresponding to each product to be tested on the miniature loudspeaker aging test tool.

Correspondingly, when the lamp is extinguished and not on, the problem in which place of the test signal generator, the test tool and the product to be tested is effectively judged by means of a control variable method, such as changing the product to be tested or changing the product to be tested with the indication lamp 22 not on to another test assembly 2 on the substrate 1 for re-testing.

In addition, when the miniature loudspeaker aging test tool designed by the utility model is used for aging test, an operator can judge whether the loop is conducted or not only by looking at the lighting condition of the tool indicator lamp 22 in the appearance of the anechoic room, and compared with the condition that the miniature loudspeaker aging test tool is directly exposed in noise, the miniature loudspeaker aging test tool can better protect the ear health of the operator and is more convenient.

Therefore, when the aging test tool for the micro-speaker is used for carrying out aging test on a product to be tested, the aging test tool not only can simply, directly and accurately judge whether the circuit from an external test signal generator to the aging test tool for the micro-speaker and from the aging test tool for the micro-speaker to the product to be tested is normally conducted, but also can effectively detect the problem that the circuit cannot be conducted, and has good popularization prospect and application value.

Further, the other end of the probe 21 is contacted with the product to be tested through a contact.

In the present utility model, in implementation, one end of the probe 21 may be electrically connected to the test signal generator through a wire, and the other end of the probe 21 may be contacted with the product to be tested through a contact, so as to form a loop from the test signal generator to the probe 21 and from the probe 21 to the product to be tested.

It should be noted that since the probe 21 of the test assembly 2 is also connected in series with an indicator light 22, when the circuit is energized: when the loop is turned on, the indicator lamp 22 connected in series with the probe 21 is also turned on; when the circuit is disconnected and the circuit is not turned on, the indicator lamp 22 connected in series with the probe 21 is not turned on.

Further, the test device further comprises a bottom plate 3, a product to be tested is fixedly arranged on the bottom plate 3, and the bottom plate 3 is connected with the substrate 1 so that the product to be tested is contacted with the probes 21 of the test assembly 2.

In the present utility model, in order to ensure that the probe 21 on the substrate 1 can be effectively matched with the product to be tested, in the speaker burn-in fixture, the base plate 3 may be further provided so as to fixedly mount the product to be tested through the base plate 3. When setting up, above-mentioned bottom plate 3 needs to be connected with base plate 1 to ensure that a plurality of products that await measuring of installing on bottom plate 3 can correspond with a plurality of test assembly 2 on the base plate 1, and each product that awaits measuring all passes through the contact with the probe 21 of each test assembly 2, the one end of probe 21 can pass through the wire electricity with test signal generator and be connected this moment, the other end of probe 21 passes through the contact with the product that awaits measuring, in order to realize the current from test signal generator to miniature speaker ageing test frock, miniature speaker ageing test frock to the conduction return circuit of product that awaits measuring, thereby realize the ageing test of product that awaits measuring.

Further, the substrate 1 is provided with a first positioning hole 11, the bottom plate 3 is provided with a second positioning hole 31, and the first positioning hole 11 is fixedly connected with the second positioning hole 31 through a bolt.

In the present utility model, in order to ensure that the substrate 1 can be correspondingly matched with the bottom plate 3, a first positioning hole 11 and a second positioning hole 31 may be respectively formed on the substrate 1 and the bottom plate 3, so that a bolt passes through the first positioning hole 11 and the second positioning hole 31 to realize the fixed connection between the substrate 1 and the bottom plate 3.

Further, the bottom plate 3 is further provided with a mounting groove 32, and the mounting groove 32 is used for mounting and fixing the product to be tested.

Further, the mounting groove 32 is a rectangular mounting groove.

In the above technical solution, the base plate 3 may be further specifically provided with a mounting groove 32 for mounting and fixing a product to be tested, and the mounting groove 32 provided on the base plate 3 can be matched with the probe 21 on the substrate 1, so as to control the product to be tested on the mounting groove 32 to be correspondingly contacted with the probe 21 on the wiping component 2 when the substrate 1 is fixedly connected with the base plate 3.

Furthermore, a positioning column 33 is further provided on the bottom plate 3, and a third positioning hole 12 corresponding to and matched with the positioning column 33 is further provided on a surface of the substrate 1 near the bottom plate 3.

Further, two positioning posts 33 are provided on the bottom plate 3, and two third positioning holes 12 corresponding to and matching with the positioning posts 33 are provided on the substrate 1.

Further, the positioning column 33 is a cylindrical positioning column.

As shown in fig. 3 and fig. 4, in the above technical solution, in order to simplify the positioning and matching process between the base plate 3 and the base plate 1, the operation of an operator is facilitated, when the base plate 1 and the base plate 3 are actually matched, a positioning column 33 is disposed on the base plate 3, and a third positioning hole 12 corresponding to the positioning column 33 is formed on a surface of one side of the base plate 1 close to the base plate 3, so as to implement rapid positioning and matching of the base plate 1 and the base plate 3 based on matching of the positioning column 33 and the third positioning hole 12.

Correspondingly, in the utility model, a micro-speaker aging test system is also disclosed, which specifically comprises the micro-speaker aging tool disclosed by the utility model.

Example 1

Referring to fig. 1 to 4, a first embodiment of the present utility model is as follows: a speaker burn-in fixture, comprising: a base plate 1, a bottom plate 3 and ten test assemblies 2. Each test assembly 2 includes a probe 21 and an indicator light 22 connected in series, where the probe 21 and the indicator light 22 are disposed on the substrate 1, and one end of the probe 21 of each test assembly 2 is electrically connected with the test signal generator through a wire, and the other end of the probe 21 contacts a product to be tested disposed on the bottom plate 3 through a contact, so as to implement a conduction loop from the test signal generator to the speaker burn-in test fixture and from the speaker burn-in test fixture to the product to be tested. It should be noted that, in this embodiment, the conductive loops of each product to be tested disposed on the bottom plate 3 of the micro-speaker burn-in fixture are independent and do not interfere with each other.

Based on the above arrangement, in the present embodiment, since the probes 21 of each test assembly 2 are each connected in series with one indicator lamp 22, when the above-described circuit is energized: when the loop is turned on, the indicator lamp 22 connected in series with the probe 21 is also turned on; when the circuit is disconnected and the circuit is not turned on, the indicator lamp 22 connected in series with the probe 21 is not turned on, and the indicator lamp 22 is turned off. In this way, whether the loop corresponding to each product to be tested is normally conducted can be directly and accurately judged by watching the condition of the indicator light 22 corresponding to each product to be tested on the miniature loudspeaker aging test tool.

In addition, when the circuit corresponding to a certain product to be tested is powered on, but the indicator light 22 is extinguished and not lightened, an operator can judge which place of the test signal generator, the test tool and the product to be tested has a problem through a control variable method, such as replacing the product to be tested or replacing the product to be tested corresponding to the test component 2 with which the condition that the indicator light 22 is not lightened, and the like, by replacing the test component 2 with the product to be tested and ageing again.

It should be noted that, as further referring to fig. 1 and 2, in this embodiment, in order to ensure that the probes 21 on the substrate 1 can effectively and correspondingly match the product to be tested, in the speaker burn-in fixture, a base plate 3 for fixedly mounting the product to be tested is further provided. Ten mounting grooves 32 are formed in the base plate 3, and a product to be measured can be correspondingly mounted in each mounting groove 32.

In this embodiment, when the substrate 1 and the bottom plate 3 are actually matched, two positioning posts 33 are further disposed on the bottom plate 3, and two third positioning holes 12 corresponding to the positioning posts 33 are formed on a surface of the substrate 1 near the bottom plate 3, so as to achieve rapid positioning of the substrate 1 and the bottom plate 3 based on the matching of the positioning posts 33 and the third positioning holes 12.

Correspondingly, when in setting, the bottom plate 3 needs to be fixedly connected with the substrate 1, and at this time, bolts can sequentially pass through the first positioning holes 11 formed on the substrate 1 and the second positioning holes 31 formed on the bottom plate 3, so that the bottom plate 3 after positioning is fixedly connected with the substrate 1.

Based on this setting, the product to be tested that installs on ten mounting grooves 32 on bottom plate 3 can be respectively with ten probes 21 that set up on base plate 1 respectively through the contact phase, and this ten probes 21 all can be connected with outside test signal generator electricity this moment to realize the current from test signal generator to speaker ageing test frock, speaker ageing test frock to the conduction return circuit of product to be tested, thereby realize the ageing test to these ten products to be tested.

Therefore, in the miniature loudspeaker aging test tool and system designed by the utility model, the inventor makes an improvement on the basis of the existing loudspeaker aging test tool, and the test assembly 2 is also provided with the indicator lamp 22 connected with the probe 21 in series, so that whether the circuit from the test signal generator to the aging test tool and the aging test tool to the product to be tested is normally conducted or not can be simply, directly and accurately judged according to the indicator lamp 22, and the miniature loudspeaker aging test tool has good popularization prospect and application value.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.

Claims (10)

1. Miniature speaker aging test frock, its characterized in that includes: the test device comprises a substrate and a plurality of test assemblies, wherein the test assemblies comprise probes and indicator lamps which are connected in series, and the probes and the indicator lamps are arranged on the substrate; one end of the probe is electrically connected with the test signal generator, and the other end of the probe is contacted with a product to be tested.

2. The fixture of claim 1, wherein the other end of the probe is in contact with the product to be tested through a contact.

3. The fixture of claim 1, further comprising a base plate, wherein a product to be tested is fixedly disposed on the base plate, and the base plate is connected to the base plate so that the product to be tested contacts with the probes of the test assembly.

4. The micro-speaker burn-in tool of claim 3, wherein the substrate is provided with a first positioning hole, the base plate is provided with a second positioning hole, and the first positioning hole is fixedly connected with the second positioning hole through a bolt.

5. The micro-speaker burn-in tool of claim 3, wherein the base plate is further provided with a mounting groove, and the mounting groove is used for mounting and fixing the product to be tested.

6. The fixture of claim 5, wherein the mounting slot is a rectangular mounting slot.

7. The micro-speaker aging test fixture according to claim 3, wherein the base plate is further provided with a positioning column, and a third positioning hole corresponding to and matched with the positioning column is further formed in a surface of one side of the base plate, which is close to the base plate.

8. The fixture for testing the aging of the micro-speaker according to claim 7, wherein two positioning columns are arranged on the bottom plate in pairs, and two third positioning holes matched with the positioning columns are arranged on the substrate.

9. The fixture of claim 7 or 8, wherein the positioning posts are cylindrical positioning posts.

10. A micro-speaker burn-in system, comprising a micro-speaker burn-in tool according to any one of claims 1-9.