A multi-station testing device for an acoustic test chamber

Abstract

The utility model relates to acoustics test technical field, the technical problem that the utility model solves is low efficiency. In order to solve the above technical problem, the utility model provides a kind of multi-station testing device for acoustic test box.The utility model includes: frame body;Multiple test components are connected in frame body;Test component includes lifting component, test cover, test microphone and test chamber;Lifting component is connected with frame body, and the output end of lifting component is connected with test cover, to drive test cover to go up and down lifting;Test cover is the box structure of bottom end opening;Test microphone is connected in test cover;Test chamber is connected with frame body, and it is located in the below of test cover;Positioning table and power supply part are equipped in test chamber;Power supply part is slidably connected in test chamber, and power supply part is contacted with product, to power on product;Test cover drops to test site, and test cover and test chamber form sealed space.The utility model improves test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of acoustic testing technology, and in particular to a multi-station testing device for acoustic testing boxes. Background Technology

[0002] Existing acoustic testing chambers are inefficient, as they can only test one small product at a time. If multiple products are tested simultaneously, the noise generated during operation can interfere with audio acquisition and interpretation, especially when two products are close together, as both can hear each other. Therefore, existing testing chambers are inefficient. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the above-mentioned problems existing in the prior art.

[0004] To solve the above-mentioned technical problems, this utility model provides a multi-station testing device for an acoustic testing chamber, comprising:

[0005] Frame;

[0006] Multiple test components are connected to the frame; the test components include a lifting mechanism, a test cover, a test microphone, and a test chamber; the lifting mechanism is connected to the frame, and its output end is connected to the test cover to drive the test cover to move up and down; the test cover is a box structure with an open bottom; the test microphone is connected inside the test cover; the test chamber is connected to the frame and is located below the test cover; the test chamber has a positioning platform and a power supply part; the power supply part is slidably connected in the test chamber; the power supply part contacts the product to power the product; the test cover descends to the test position, and the test cover and the test chamber form a sealed space.

[0007] In one embodiment of this utility model, the test assembly further includes a lifting plate, multiple lifting columns, a limit screw, and a buffer; the lifting plate is located above the frame; the lifting plate is connected to the output end of the lifting component; multiple lifting columns are connected to the bottom of the lifting plate, and the lifting columns pass through the frame and are connected to the test cover; the limit screw and the buffer are respectively connected to the bottom of the lifting plate; the bottom end of the buffer is lower than the bottom end of the limit screw.

[0008] In one embodiment of this utility model, the inner wall of the test cover is provided with a sound-absorbing layer.

[0009] In one embodiment of this utility model, the application further includes a PLC control unit; the PLC control unit is electrically connected to the test microphone.

[0010] In one embodiment of this utility model, the testing component further includes a status indicator light; the status indicator light is electrically connected to the PLC control unit.

[0011] In one embodiment of this utility model, the top of the positioning platform is provided with a plurality of positioning pins; the product is provided with positioning holes that match the positioning pins.

[0012] In one embodiment of this utility model, a sensor is provided on the positioning platform to identify whether a product is placed on the positioning platform.

[0013] In one embodiment of this utility model, the energizing part includes an energizing cylinder and an energizing probe; the energizing cylinder is connected to the test chamber, and the output end of the energizing cylinder is connected to the energizing probe.

[0014] In one embodiment of the present invention, the test assembly further includes a test base, and the test chamber is disposed on the test base; the test bases of multiple test assemblies are connected as one unit.

[0015] In one embodiment of this utility model, a sealing element is provided on the upper surface of the test base.

[0016] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0017] The multi-station testing device for acoustic testing chambers described in this utility model comprises multiple testing components mounted on a frame. Each testing component has a testing chamber at the bottom of the frame and a vertically adjustable testing cover at the top. When testing is required, the testing cover is lowered, creating a sealed space between the testing cover and the testing chamber. This allows for product testing within a confined space. This application enables the provision of independent testing spaces for each product, thus isolating mutual interference between products and allowing for simultaneous testing of multiple products, thereby improving testing efficiency. Attached Figure Description

[0018] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0019] Figure 1 This is a schematic diagram from one perspective of a multi-station testing device for an acoustic testing box according to a preferred embodiment of the present invention.

[0020] Figure 2 yes Figure 1 A schematic diagram of another perspective of the multi-station testing device for an acoustic test chamber;

[0021] Figure 3 yes Figure 1 The diagram shows the bottom of the test hood in the multi-station test apparatus for the acoustic test chamber.

[0022] Figure 4 yes Figure 1 The diagram shown is a schematic of multiple test chambers in a multi-station testing device for an acoustic test chamber.

[0023] Figure 5 yes Figure 1 The diagram shows the test base (with seals removed) in a multi-station testing device for an acoustic test chamber;

[0024] Figure 6 yes Figure 1 The diagram shows the structure of the positioning stage in the multi-station testing device for the acoustic test chamber.

[0025] Instruction manual drawing reference numerals: 100, frame; 110, connecting body; 120, top plate;

[0026] 200. Test component; 210. Lifting part; 220. Test cover; 221. Sound-absorbing layer; 230. Test microphone; 240. Test chamber; 241. Positioning platform; 242. Positioning pin; 243. Sensor; 244. Power-on cylinder; 245. Power-on probe; 250. Test base; 251. Seal; 260. Lifting auxiliary part; 261. Lifting plate; 262. Lifting column; 263. Guide sleeve; 270. Limit screw; 280. Buffer; 290. Status indicator light;

[0027] 300. Products. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0029] Reference Figures 1-6 As shown, this utility model embodiment provides a multi-station testing device for an acoustic test chamber, comprising:

[0030] The frame 100 includes a connecting body 110 and a top plate 120 connected to the top of the connecting body 110;

[0031] Multiple test components 200 are connected to the frame 100. Each test component 200 includes a lifting component 210, a test cover 220, a test microphone 230, and a test chamber 240. The lifting component 210 is connected to the top plate 120 of the frame 100, and its output end is connected to the test cover 220 to drive the test cover 220 to move up and down. The test cover 220 is a box structure with an open bottom. The test microphone 230 is connected to the test cover 220. The test chamber 240 is connected to the frame 100 and is located below the test cover 220. The test chamber 240 has a positioning platform 241 and a power supply part. The product 300 is connected to the positioning platform 241. The power supply part is slidably connected to the test chamber 240 in the horizontal direction. The power supply part contacts the product 300 to power the product 300. The test cover 220 descends to the test position, and the test cover 220 and the test chamber 240 form a sealed space.

[0032] Specifically, in this embodiment, multiple test components 200 are arranged on the frame 100. Each test component 200 has a test chamber 240 at the bottom of the frame 100 and a test cover 220 that can be raised and lowered at the top of the frame 100. When testing is required, the test cover 220 is lowered, thereby forming a sealed space between the test cover 220 and the test chamber 240. This allows the product 300 to be tested in a sealed space. Therefore, this application provides an independent test space for each product 300, thereby isolating the mutual interference between products 300 and allowing multiple products 300 to be tested simultaneously, improving testing efficiency.

[0033] Furthermore, the test assembly 200 also includes a test base 250, and a test chamber 240 is disposed on top of the test base 250; the test bases 250 of multiple test assemblies 200 are connected as one unit.

[0034] Specifically, in this embodiment, multiple test chambers 240 are disposed on a test base 250 to ensure the stability of the structural connection. In some possible implementations, the test base 250 includes a base body and a cover plate, with the top of the base body recessed downward to form the test chambers 240. The cover plate is connected to the top of the base body; the cover plate has through holes communicating with the test chambers 240. A sealing element 251 is disposed on the upper surface of the cover plate.

[0035] Furthermore, a seal 251 is provided on the upper surface of the test base 250. In some embodiments, the seal 251 is disposed on the upper surface of the cover plate.

[0036] Specifically, after the test cover 220 descends, it seals against the test chamber via the sealing element 251. In some embodiments, the sealing element 251 may be a flat elastic sealing strip to ensure strong sealing performance.

[0037] Furthermore, the test assembly 200 also includes a lifting auxiliary part 260, a limiting screw 270, and a buffer 280; the lifting auxiliary part 260 includes a lifting plate 261 and a plurality of lifting columns 262; the lifting plate 261 is located above the frame 100; the lifting plate 261 is connected to the output end of the lifting component 210; the plurality of lifting columns 262 are connected to the bottom of the lifting plate 261, and the lifting columns 262 pass through the frame 100 and are connected to the test cover 220; the limiting screw 270 and the buffer 280 are respectively connected to the lifting plate 261; the bottom end of the buffer 280 is lower than the bottom end of the limiting screw 270. In some embodiments, the test assembly 200 also includes a guide sleeve 263. A through hole is provided on the top plate 120 to cooperate with the lifting column 262, and the guide sleeve 263 is installed in the through hole, guiding the up and down movement of the test cover 220 through the cooperation of the lifting column 262 and the guide sleeve 263. In some embodiments, the lifting component 210 is a cylinder.

[0038] Specifically, in this embodiment, a limiting screw 270 and a buffer 280 are provided at the bottom of the lifting plate 261, and the limiting screw 270 and the buffer 280 are located above the top plate 120. Thus, when the lifting plate 261 and the test cover 220 are about to descend to the test position, the buffer 280 first contacts the top plate 120, and the deformation of the buffer 280 gradually slows down the descent of the test cover 220. At this time, the test cover 220 slowly presses down to tighten the seal 251 until it reaches the test position, at which point the limiting screw 270 abuts against the top of the top plate 120, thereby limiting the test cover 220 from continuing to descend. At this time, the test cover 220 has finished pressing down on the seal 251, thereby forming a sealed space.

[0039] Furthermore, the inner wall of the test cover 220 is provided with a sound-absorbing layer 221. In some embodiments, sound-absorbing cotton is attached to the inner wall of the test cover 220 to form the sound-absorbing layer 221. In some embodiments, the test cover 220 is made of multiple aluminum plates or bakelite boards spliced ​​together.

[0040] Specifically, in this embodiment, a sound-absorbing layer 221 is provided on the inner wall of the test cover 220, which can further reduce the impact of external noise on the test results.

[0041] Furthermore, this application also includes a PLC control unit; the PLC control unit is electrically connected to the test microphone 230.

[0042] Specifically, in this embodiment, during the testing process, the test microphone 230 transmits the collected test data to the PLC control unit, which analyzes the test data to determine whether the test is qualified.

[0043] Furthermore, the test assembly 200 also includes a status indicator light 290; the status indicator light 290 is electrically connected to the PLC control unit. In some embodiments, the status indicator light 290 is disposed on the top of the test base 250. In some possible embodiments, the status indicator light 290 can be a red-green dual-color indicator light. A lit green indicator light indicates that the test result is qualified; a lit red indicator light indicates that the test result is qualified.

[0044] Specifically, testers can determine the OK or NG status of product 300 based on the status indicator light 290 to assist testers in sorting out products 300 that have completed testing.

[0045] Furthermore, the top of the positioning platform 241 is provided with a plurality of positioning pins 242; the product 300 is provided with positioning holes that match the positioning pins 242.

[0046] Specifically, in this embodiment, the positioning pin 242 cooperates with the positioning hole of the product 300 to restrict the product 300 on the positioning stage 241. On the one hand, the product 300 can be quickly picked up and placed on the positioning stage 241, and on the other hand, the product 300 is constrained to prevent the product 300 from shifting and affecting the test during the power-on test.

[0047] Furthermore, a sensor 243 is provided on the positioning stage 241 to identify whether product 300 is placed on the positioning stage 241.

[0048] Specifically, this embodiment uses a PLC control unit to achieve joint control, thereby enabling the system to upload test results and determine whether the data is qualified.

[0049] Furthermore, the energizing part includes an energizing cylinder 244 and an energizing probe 245; the energizing cylinder 244 is connected to the test chamber 240, and the output end of the energizing cylinder 244 is connected to the energizing probe 245.

[0050] Specifically, in this embodiment, the energized probe 245 is driven to slide in the test chamber 240 by the energized cylinder 244, so as to realize the connection and disconnection of the probe and the interface on the product 300.

[0051] In some embodiments, sensor 243 is electrically connected to the PLC control unit. Electric cylinder 244 is electrically connected to the PLC control unit. Lifting component 210 is electrically connected to the PLC control unit.

[0052] The testing process for this application;

[0053] Test cover 220 is lifted – product 300 is placed in – electric cylinder 244 is powered on, test cover 220 is pressed down to seal – PLC control box collects test audio, analyzes it and outputs OK / NG signal of product 300 to status indicator 290 – test cover 220 is lifted, electric cylinder 244 is powered on and ejected away from product 300 – product 300 is sorted.

[0054] This application can shield against testing interference between products up to 300, improving testing efficiency. It also addresses the pain point of acoustic testing chambers only being able to test one sample at a time, and the mutual interference when testing multiple samples simultaneously, significantly improving testing efficiency and saving testing costs.

[0055] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A multi-station testing device for an acoustic testing chamber, characterized in that: include: Frame; Multiple test components are connected to the frame; the test components include a lifting component, a test cover, a test microphone, and a test chamber; The lifting component is connected to the frame, and the output end of the lifting component is connected to the test cover to drive the test cover to move up and down. The test cover is a box structure with an open bottom. The test microphone is connected to the test cover. The test chamber is connected to the frame and is located below the test cover. The test chamber is provided with a positioning platform and a power supply part. The power supply part is slidably connected in the test chamber. The power supply part contacts the product to power the product. The test cover descends to the test position, and the test cover and the test chamber form a sealed space.

2. The multi-station testing device for an acoustic testing chamber according to claim 1, characterized in that: The test assembly also includes a lifting plate, multiple lifting columns, a limit screw, and a buffer; the lifting plate is located above the frame; the lifting plate is connected to the output end of the lifting component; the multiple lifting columns are connected to the bottom of the lifting plate, and the lifting columns pass through the frame and are connected to the test cover; the limit screw and the buffer are respectively connected to the bottom of the lifting plate; the bottom end of the buffer is lower than the bottom end of the limit screw.

3. The multi-station testing device for an acoustic testing chamber according to claim 1, characterized in that: The inner wall of the test enclosure is provided with a sound-absorbing layer.

4. The multi-station testing device for an acoustic testing chamber according to claim 1, characterized in that: It also includes a PLC control unit; the PLC control unit is electrically connected to the test microphone.

5. The multi-station testing device for an acoustic testing chamber according to claim 4, characterized in that: The test component also includes a status indicator light; the status indicator light is electrically connected to the PLC control unit.

6. The multi-station testing device for an acoustic testing chamber according to claim 1, characterized in that: The top of the positioning platform is provided with multiple positioning pins; the product is provided with positioning holes that match the positioning pins.

7. The multi-station testing device for an acoustic testing chamber according to claim 1, characterized in that: The positioning platform is equipped with sensors to identify whether a product is placed on the positioning platform.

8. The multi-station testing device for an acoustic testing chamber according to claim 1, characterized in that: The energizing part includes an energizing cylinder and an energizing probe; the energizing cylinder is connected to the test chamber, and the output end of the energizing cylinder is connected to the energizing probe.

9. The multi-station testing device for an acoustic testing chamber according to claim 1, characterized in that: The test assembly also includes a test base, and the test chamber is disposed on the test base; the test bases of multiple test assemblies are connected as one unit.

10. The multi-station testing device for an acoustic testing chamber according to claim 9, characterized in that: The upper surface of the test base is equipped with a seal.

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