CN215072988U

CN215072988U - Simple audio test box

Info

Publication number: CN215072988U
Application number: CN202121618370.3U
Authority: CN
Inventors: 何闵
Original assignee: Shenzhen Holitech Optoelectronics Co Ltd
Current assignee: Shenzhen Holitech Optoelectronics Co Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-12-07
Anticipated expiration: 2031-07-16

Abstract

The utility model discloses a simple and easy audio test case, include: the probe test device comprises a bottom plate, an inner box body, a shell main body, a probe fixture and an audio test PCB; the outer shell main body is fixed at the rear end of the bottom plate, the inner box body is sleeved in the outer shell main body and is in sliding connection with the outer shell main body through a guide rail arranged on the outer side of the inner box body; the probe jig is detachably arranged in the inner box body and is used for fixing a product to be tested and connecting a test point position of the product; the audio test PCB is detachably arranged on one side in the inner box body and is electrically connected with the probe jig through the probe; the utility model has simple structure and convenient operation, can be temporarily assembled according to the condition of the product, quickly builds a temporary testing device and provides a testing environment required by the test; and the semi-finished product with the audio receiving unit can be effectively subjected to preliminary performance test, so that screening control on defective products is guaranteed, and product optimization is achieved.

Description

Simple audio test box

Technical Field

The utility model relates to an audio test field, in particular to simple and easy audio test case.

Background

With the improvement of scientific technology and living standard, the artificial intelligent Internet of things greatly stimulates the development of intelligent hardware for intelligent home, security, medical treatment and vehicle-mounted, and the demand of the intelligent hardware on an audio signal receiving unit is also increased sharply in order to improve the man-machine interaction diversity; therefore, the need for audio testing is also interspersed throughout the product manufacturing process; in order to ensure the audio performance of the product, the audio device in the product needs to be tested before being introduced into the market; the audio receiving unit mainly exists in the form of a single element and a finished terminal product; to the product that the part is more, the testing arrangement who needs to build temporarily guarantees certain test environment, just can realize carrying out performance test to semi-manufactured goods fast, effectively realizes the functional bad screening of audio frequency.

The existing detection device has single function, can not be completely adapted to the product test requirements of various words, needs a inspector to continuously adjust and correct, and has a long preparation period; in addition, other modules are required to be additionally arranged on some products, and the testing requirements can be met only by additionally purchasing a special jig, so that the labor amount and the labor period of inspectors are increased, and the efficiency is very low;

therefore, a simple audio test box is urgently needed to solve the technical problems.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a simple and easy audio test case, for the semi-manufactured goods stage capability test who has audio frequency receiving unit provides a convenient testing arrangement and the test environment of can buildding temporarily, and the product test is carried out in convenient interim equipment, can effectively realize the functional bad screening of audio frequency.

The utility model discloses the technical scheme who uses is: a simplified audio test cabinet comprising: the probe test device comprises a bottom plate, an inner box body, a shell main body, a probe fixture and an audio test PCB; the outer shell main body is fixed at the rear end of the bottom plate, the inner box body is sleeved in the outer shell main body and is in sliding connection with the outer shell main body through a guide rail arranged on the outer side of the inner box body; the probe jig is detachably arranged in the inner box body and is used for fixing a product to be tested and connecting a test point position of the product; the audio test PCB is detachably arranged on one side in the inner box body and is electrically connected with the probe jig through a USB data line to be communicated with a product;

the audio test PCB board includes: the system comprises a signal processing unit and a sound control unit, wherein the signal processing unit is used for processing signals acquired by a product and outputting the processed signals to computer terminal detection software; the sound control unit has the function of storing different frequencies, controls to emit sound with required frequency through the computer terminal, and is controlled by a closed switch arranged on the inner wall of the top plate of the shell main body.

Preferably, the upper surface of the bottom plate is provided with a slide rail, and the slide rail is in sliding fit with a slide groove arranged on the lower surface of the inner box body.

Preferably, the front side surface of the inner box body is provided with a sealing cover, the sealing cover is fixedly connected with the inner box body, and when the inner box body enters the shell main body, the sealing cover is tightly matched with the shell main body.

Preferably, a handle is arranged on the outer side of the sealing cover and fixedly connected with the sealing cover.

Preferably, the cross section of the sliding rail is in an inverted trapezoid shape, and the cross section of the sliding groove is also in an inverted trapezoid shape with a corresponding size.

Preferably, the guide rail includes: the sliding blocks are fixed on the outer walls of the two sides of the inner box body in parallel, and the sliding ways are symmetrically fixed on the inner walls of the two sides of the shell main body.

Preferably, the cross section of the slide way is U-shaped, and the slide block is wrapped by the slide block in a semi-surrounding mode.

Preferably, the air-pressure telescopic rod is further included, one end of the air-pressure telescopic rod is fixed on the bottom plate, and the other end of the air-pressure telescopic rod is fixedly connected with the inner box body.

By adopting the technical scheme, the utility model has the advantages that: the structure is simple, the operation is convenient, the temporary assembly can be carried out according to the condition of a product, the temporary testing device can be quickly built, and the testing environment required by the test is provided; and the semi-finished product with the audio receiving unit can be effectively subjected to preliminary performance test, so that screening control on defective products is guaranteed, and product optimization is achieved.

Drawings

Fig. 1 is a schematic view of the overall working state of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is an internal cross-sectional view of the guide rail structure of the present invention.

Fig. 4 is a schematic structural diagram of a second embodiment of the present invention.

Reference numerals: a bottom plate-1; a sealing cover-2; an inner box body-3; a guide rail-4; a housing body-5; a probe jig-6; audio test PCB-7; closing the switch-8; an air pressure telescopic rod-9; a slide rail-11; a handle-21; a chute-31; a slide block-41; and a chute-42.

Detailed Description

The utility model discloses a simple and easy audio test case, this kind of equipment can be used for having the simple capability test of audio frequency receiving element product and the screening of defective products. The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Embodiment one, as shown in fig. 1-2, a simple audio test box, the utility model discloses a: the device comprises a bottom plate 1, an inner box body 3, a shell main body 5, a probe jig 6 and an audio test PCB 7; the outer shell main body 5 is fixed at the rear end of the bottom plate 1, the inner box body 3 is sleeved in the outer shell main body 5 and is in sliding connection with the outer shell main body 5 through a guide rail 4 arranged on the outer side of the outer box body; the probe jig 6 is detachably arranged inside the inner box body 3 and used for fixing a product to be detected; the audio test PCB 7 is detachably arranged on one side inside the inner box body 3 and is electrically connected with the probe jig 6 through a probe; the detachable structure designed by the test box in the utility model supports the inner box body 3 and the outer shell main body 5 through the guide rail 4, is convenient to operate before preparing for testing, can be temporarily assembled according to the condition of a product, quickly builds a temporary test device, and provides a test environment required by testing;

in an embodiment, the audio test PCB board 7 comprises: the system comprises a signal processing unit and a sound control unit, wherein the signal processing unit is used for processing signals acquired by a product and outputting the processed signals to computer terminal detection software; the sound control unit is used for storing the functions of different frequencies, controlling the sound with the required frequency through a computer terminal and being controlled by a closed switch 8 arranged on the inner wall of the top plate of the shell main body 5; the closing switch 8 is turned on/off when the inner case 3 is opened/closed to control the operation of the sound control unit so as to prevent continuous noise.

During specific testing, the sound control unit is simulated by selecting a loudspeaker or a buzzer according to the type of a product to be tested, the inner box body 3 is firstly drawn out of the shell main body 5, the product to be tested is installed in the probe jig 6, and the product to be tested is electrically connected with the audio test PCB 7 and the computer terminal; then the inner box body 3 is pushed into the shell main body 5; at the moment, the closing switch 8 is in a closed state, the loudspeaker (or the buzzer) starts to work, the emitted sound is acquired by the audio receiving unit in the product to be tested, and the signal is output to the computer terminal for display through the signal processing unit; and then, by adjusting the sound frequency of the loudspeaker (or the buzzer), the working state of the audio receiving unit of the product to be tested under each frequency sound source can be obtained to judge whether the audio receiving unit works normally, so that the preliminary performance test is effectively carried out on the semi-finished product with the audio receiving unit, the screening control on defective products is ensured, and the product optimization is achieved.

In order to including when box 3 opens and shuts, can be more steady in the slip between shell main part 5 and bottom plate 1, reach the accuracy of realization, the utility model discloses in the optional embodiment of the embodiment, 1 upper surface of bottom plate is equipped with slide rail 11, and slide rail 11 and the spout 31 sliding fit that interior box 3 lower surface set up.

In order to guarantee that the simulated environment reaches the experimental requirement when testing, the utility model discloses in the optional implementation mode of embodiment, 3 leading flanks of interior box are equipped with sealed lid 2, and sealed

lid

2 and 3 fixed connection of interior box, inside box 3 enters into shell main part 5 in the time, guarantee sealed lid 2 and shell main part 5 closely cooperate.

In order to facilitate the operation of the actor when the inner box body 3 is opened and closed, in the embodiment, except for the same parts as the previous embodiment, a handle 21 is arranged on the outer side of the sealing cover 2, and the handle 21 is fixedly connected with the sealing cover 2.

In order to achieve the precision of the implementation without relative height deviation between the inner box body 3 and the bottom plate 1 when the inner box body is opened and closed, the cross section of the sliding rail 11 is designed to be an inverted trapezoid, and the cross section of the sliding chute 31 is also designed to be an inverted trapezoid with a corresponding size.

In order to ensure the silent sliding of the inner casing 3 and the outer casing 5, the guide rail 4 in the embodiment includes: the sliding blocks 41 are fixed on the outer walls of the two sides of the inner box body 3 in parallel, and the sliding ways 42 are symmetrically fixed on the inner walls of the two sides of the shell main body 5; when the inner box body 3 needs to slide back and forth on the shell main body 5, the sliding block 41 is closely matched with the sliding way 42 in a sliding way, so that the precision required by the experiment is achieved; as shown in fig. 3, the sliding rail 42 selected in the embodiment is U-shaped in cross section, and can semi-surround and wrap the sliding block 41, and when the sliding block 41 moves in the sliding rail 42, the sliding rail 42 can guide the sliding block 41 and can have a certain supporting and limiting effect.

In a second embodiment, as shown in fig. 4, the embodiment of the present invention further includes an air-pressure telescopic rod 9, besides the same components as those in the previous embodiment, wherein one end of the air-pressure telescopic rod 9 is fixed on the bottom plate 1, and the other end is fixedly connected to the inner box 3; the air pressure telescopic rod 9 is arranged to realize automatic ejection and retraction of the inner box body 3; when the installation product is heavier the back, replace the supplementary pop-up and withdraw of interior box 3 of manpower push-and-pull through pneumatic telescoping rod 9, alleviate personnel and frequently test and cause physical demands.

The utility model discloses the working procedure as follows:

opening the inner box 3, installing the probe jig 6 and the audio test PCB 7, and electrically connecting the probe jig and the audio test PCB with a computer terminal and a power supply to form a test environment;

then, putting a product to be tested into the probe jig 6 for fixation and electrically accessing;

then, the box body 1 is pushed in, so that the inner box body 3 and the shell main body 5 form a relatively independent internal environment; at the moment, a closing switch 8 is triggered to open a loudspeaker (or a buzzer) of the audio test PCB 7, a signal acquired by a product is processed through a signal processing unit, and the processed signal is output to computer terminal detection software;

then, a tester observes the condition of the audio signal on the display screen of the computer terminal to judge whether the product quality is abnormal or not, and experimental data of the product to be tested are obtained;

after the statistics of the test data is finished, the inner box body 3 is pulled out, and a loudspeaker (or a buzzer) of the audio test PCB 7 is closed corresponding to the opening of the closing switch 8;

and finally, opening the probe jig 6, taking out the test product, judging the product to be tested, and completing the test.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be interpreted as limiting the present invention.

Claims

1. A simple audio test box, comprising: the device comprises a bottom plate (1), an inner box body (3), a shell main body (5), a probe jig (6) and an audio test PCB (7); the outer shell main body (5) is fixed at the rear end of the bottom plate (1), the inner box body (3) is sleeved in the outer shell main body (5), and is in sliding connection with the outer shell main body (5) through a guide rail (4) arranged on the outer side of the inner box body; the probe jig (6) is detachably arranged in the inner box body (3) and is used for fixing a product to be tested and connecting a test point position of the product; the audio test PCB (7) is detachably arranged on one side inside the inner box body (3) and is electrically connected with the probe jig (6) through a probe;

the audio test PCB board (7) comprises: the system comprises a signal processing unit and a sound control unit, wherein the signal processing unit is used for processing signals acquired by a product and outputting the processed signals to computer terminal detection software; the sound control unit has the function of storing different frequencies, controls the sound with the required frequency through a computer terminal, and is controlled by a closed switch (8) arranged on the inner wall of the top plate of the shell main body (5).

2. The simple audio test box according to claim 1, wherein the upper surface of the bottom plate (1) is provided with a slide rail (11), and the slide rail (11) is in sliding fit with a slide groove (31) arranged on the lower surface of the inner box body (3).

3. The simple audio test box according to claim 1, wherein the front side of the inner box (3) is provided with a sealing cover (2), the sealing cover (2) is fixedly connected with the inner box (3), and when the inner box (3) enters the housing main body (5), the sealing cover (2) is tightly matched with the housing main body (5).

4. A simple audio test box according to claim 3, characterized in that a handle (21) is arranged outside the sealing cover (2), and the handle (21) is fixedly connected with the sealing cover (2).

5. The simple audio test box according to claim 2, wherein the cross section of the slide rail (11) is an inverted trapezoid and is not limited to an inverted trapezoid, and the cross section of the sliding chute (31) is an inverted trapezoid with corresponding dimension and is not limited to an inverted trapezoid.

6. A simple audio test cabinet according to claim 1, characterized in that the guide (4) comprises: slider (41) and slide (42), slider (41) parallel fixation is on interior box (3) both sides outer wall, slide (42) symmetry is fixed on shell main part (5) both sides inner wall.

7. The simple audio test box according to claim 6, characterized in that the cross section of the slide rail (42) is U-shaped and is not limited to the U-shaped slide rail, and the slide block (41) is wrapped in half.

8. The simple audio test box according to any one of claims 1 to 7, further comprising a pneumatic telescopic rod (9), wherein one end of the pneumatic telescopic rod (9) is fixed on the bottom plate (1), and the other end of the pneumatic telescopic rod is fixedly connected with the inner box body (3).