Auxiliary device for sound box acoustic test
By designing adjustable clamping doors and sound-absorbing components, the problem of adjusting the window size in traditional speaker acoustic testing has been solved, enabling efficient and accurate speaker acoustic testing and enhancing the controllability and ease of operation of the testing environment.
Patent Information
- Application Number
- CN202422191048.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-07
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-09-07
AI Technical Summary
Traditional speaker acoustic testing methods have limitations in terms of test environment control, especially in adjusting the window size to accommodate different speaker shapes and sizes, which can lead to sound leakage and affect test accuracy.
The design incorporates adjustable double-layer and single-layer clamping doors, combined with lifting and sliding components. Driven by a servo motor, the window size automatically adjusts to accommodate different speaker shapes and sizes. Sound-absorbing components are installed in the test chamber to absorb excess sound waves, and metal partitions made of aluminum alloy enhance the sound insulation effect.
It improves the accuracy and reliability of testing, reduces sound leakage, enhances the professionalism and controllability of the testing environment, simplifies operational complexity, and improves work efficiency.
Smart Images
Figure CN223666487U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of sound box test chamber accessory, especially to a kind of auxiliary device for sound box acoustic test. BACKGROUND
[0002] It is known that with the development of audio technology, people's requirements for the sound quality of sound boxes are increasingly high, especially in the field of professional sound and home sound, the acoustic performance of sound boxes directly affects user experience. In order to ensure that the acoustic performance of sound boxes during design and production meets the expected target, it is crucial to conduct strict acoustic testing. However, traditional sound box acoustic testing methods have certain limitations, especially in terms of controlling the test environment.
[0003] Traditional sound box acoustic testing often relies on a specific anechoic chamber or soundproof room to minimize the impact of external environmental factors on test results. However, in actual operation, due to the limitations of test equipment and test environment, it is often difficult to achieve completely ideal test conditions. For example, during testing, due to the different shapes and sizes of loudspeakers, the size of the window of the test device often needs to be adjusted accordingly to ensure that sound does not leak out of the gaps during testing, affecting the accuracy of the test, thereby poor practicality. SUMMARY
[0004] To solve the above technical problems, the utility model provides an auxiliary device for sound box acoustic testing, which can adjust the size of the window of the test device according to the shape and size of the loudspeaker to ensure that sound does not leak during testing, thereby enhancing the accuracy of the test and thus enhancing the practicality.
[0005] The auxiliary device for sound box acoustic testing of the utility model comprises a test chamber, two groups of single-layer clamping doors and a sound box. A metal partition is provided in the middle of the test chamber. An acoustic absorption assembly is provided at the left end of the test chamber. A first through slot is provided at the right end of the metal partition. A cover plate assembly is provided at the left end of the metal partition. An installation slot is provided at the left end of the metal partition. A protrusion is provided at the bottom of the installation slot. The installation slot is provided with a double-layer clamping door. A lifting assembly is provided at the left end of the double-layer clamping door. A through sliding slot is provided at the front end of the double-layer detection door. The through sliding slot is slidably connected with the two groups of single-layer clamping doors. The left end of the protrusion is slidably attached to the two groups of single-layer clamping doors. The bottom end of each of the two groups of single-layer clamping doors is provided with a sliding assembly. The bottom end of the sound box is attached to the through slot. The bottom end of the first through slot is attached to the sound box. The inner end of each of the two groups of single-layer clamping doors is attached to the sound box.
[0006] Preferably, the lifting assembly comprises two groups of first servo motors, two groups of first gears and four groups of first racks, the front end and the rear end of the mounting groove are respectively provided with lifting grooves, the right ends of the two groups of lifting grooves are respectively connected with the first servo motors, the output ends of the two groups of first servo motors are respectively connected with the first gears, the outer ends of the double-layer clamping doors are respectively connected with the two groups of first racks, and the two groups of first gears are respectively in mesh with the tooth surfaces of the two groups of first racks.
[0007] Preferably, the sliding assembly comprises two groups of second servo motors, two groups of second gears and two groups of second racks, the left end of the protrusion is provided with two groups of sliding grooves, the right ends of the two groups of sliding grooves are respectively connected with the second servo motors, the output ends of the two groups of second servo motors are respectively in mesh with the tooth surfaces of the second gears, the bottom ends of the single-layer clamping doors are respectively connected with the second racks, and the two groups of second gears are respectively in mesh with the tooth surfaces of the second racks.
[0008] Preferably, the cover plate assembly comprises two groups of first supporting blocks, two groups of second supporting blocks, a first cover plate and four groups of first screws, the section of the mounting groove is connected with the two groups of first supporting blocks, the left end of the protrusion is connected with the two groups of second supporting blocks, the left ends of the two groups of first supporting blocks and the two groups of second supporting blocks are respectively provided with first threaded holes, the front end of the first cover plate is provided with four groups of first through holes, the four groups of first screws are respectively screwed through the first through holes and the first threaded holes, and the front right end of the first cover plate is provided with a second through groove.
[0009] Preferably, the sound absorption assembly comprises a reflecting plate, sound absorption cotton and two groups of inverted phase pipes, the left inner end of the test chamber is connected with the reflecting plate, the right end of the reflecting plate is connected with the sound absorption cotton, the reflecting plate, the sound absorption cotton and the left end of the test chamber are respectively provided with four groups of rear inverted phase holes, and the two groups of inverted phase pipes are respectively connected with the six groups of rear inverted phase holes.
[0010] Preferably, the four groups of first through holes are all provided as counterbores.
[0011] Preferably, the bottom ends of the double-layer clamping doors are provided with two groups of first rubber strips, and the inner ends of the two groups of single-layer clamping doors are respectively provided with second rubber strips.
[0012] Preferably, the metal partition plate is made of alloy aluminum material, and the left end and the right end of the metal partition plate are respectively coated with a layer of sound absorption material.
[0013] Compared with the prior art, the utility model has the advantages that: the utility model discloses adjustable double -deck clamping door and single -deck clamping door can be adjusted according to the different shape and size of loudspeaker Window size of test device, thereby ensuring that the sound does not leak from the crack in the testing process, greatly improve the accuracy and reliability of test, then through the setting of lifting assembly and sliding assembly, make clamping door can conveniently adjust position, not only simple operation, but also can adapt to different model loudspeaker test demand, after the utility model is provided with sound absorption component in the left end of test chamber, including reflector, sound absorption cotton and inverse phase pipe, can effectively absorb the excess sound wave generated in the testing process, further reduce the influence of external environment to test result, improve the professionality and controllability of test environment, secondly, the metal partition in the middle of test chamber not only plays the role of separation, still set up apron component in its left end, make whole device more compact and easy to maintain, the metal partition adopts alloy aluminium material, and is coated sound absorption material in its both ends, further strengthen the sound insulation effect of device, finally, lifting assembly and sliding assembly all adopt servo motor drive, realize the automation adjustment, reduce the complexity of manual operation, improve work efficiency, thereby enhance the accuracy of test, therefore enhance practicality. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the connecting structure schematic diagram of the utility model;
[0015] Figure 2 It is the reflector and sound absorption cotton connecting structure schematic diagram of the utility model;
[0016] Figure 3 It is the first rubber strip and double -deck clamping box connecting structure schematic diagram of the utility model;
[0017] Figure 4 It is the first gear and first rack gear surface meshing structure schematic diagram of the utility model;
[0018] Figure 5 It is the second rack and single -deck clamping door connecting structure schematic diagram of the utility model;
[0019] Mark in the drawing: 1, test chamber;2, metal partition;3, lug;4, double -deck clamping door;5, single -deck clamping door;6, sound box;7, first servo motor;8, first gear;9, first rack;10, second servo motor;11, second gear;12, second rack;13, first support block;14, second support block;15, first apron;16, first screw;17, reflector;18, sound absorption cotton;19, inverse phase pipe;20, first rubber strip;21, second rubber strip. DETAILED DESCRIPTION
[0020] The specific embodiments of the utility model are described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but are not used to limit the scope of the utility model.
[0021] As Figures 1 to 5 The utility model discloses a kind of auxiliary devices for sound box acoustic test, including test chamber 1, two groups of single-layer clamping door 5 and sound box 6, the middle part of test chamber 1 is provided with metal partition 2, the left end of test chamber 1 is provided with sound absorption assembly, the right end of metal partition 2 is provided with first through groove, the left end of metal partition 2 is provided with cover plate assembly, the left end of metal partition 2 is provided with mounting groove, the bottom of mounting groove is provided with lug 3, mounting groove is provided with double-layer clamping door 4, the left end of double-layer clamping door 4 is provided with lifting assembly, the front end of double-layer detection door is provided with through sliding slot, through sliding slot and two groups of single-layer clamping door 5 slidingly clamped, the left end of lug 3 and two groups of single-layer clamping door 5 slidingly close, the bottom end of two groups of single-layer clamping door 5 is provided with sliding assembly respectively, the bottom end of sound box 6 and through groove close, the bottom end of first through groove and sound box 6 close, the inner end of two groups of single-layer clamping door 5 is close to sound box 6 respectively;The utility model passes through the design adjustable double-layer clamping door and single-layer clamping door, can be flexibly adjusted according to the different shape and size of loudspeaker Window size of testing device, to ensure that sound does not leak from the gap in the testing process, greatly improve the accuracy and reliability of test, then through the setting of lifting assembly and sliding assembly, the clamping door can be conveniently adjusted position, not only easy to operate, but also can adapt to different model loudspeaker test demand, after the utility model is provided with sound absorption assembly in the left end of test chamber, including reflector, sound absorption cotton and inverter tube, can effectively absorb the excess sound wave generated in the testing process, further reduce the influence of external environment on test result, improve the professionalism and controllability of test environment, secondly, the metal partition in the middle part of test chamber not only plays a separating role, but also is provided with cover plate assembly in its left end, so that the whole device is more compact and easy to maintain, metal partition adopts alloy aluminum material, and sound absorption material is coated on both ends, further enhance the sound insulation effect of device, finally, lifting assembly and sliding assembly are driven by servo motor, realize automatic adjustment, reduce the complexity of manual operation, improve work efficiency, to enhance the accuracy of test, thus enhance practicality.
[0022] As a preferred embodiment of the above, the lifting assembly includes two sets of first servo motors 7, two sets of first gears 8, and four sets of first racks 9. Lifting slots are respectively provided at the front and rear ends of the mounting slot. The right ends of the two sets of lifting slots are connected to the first servo motors 7, and the output ends of the two sets of first servo motors 7 are respectively connected to the first gears 8. The outer ends of the double-layer clamping door 4 are respectively connected to the two sets of first racks 9, and the two sets of first gears 8 mesh with the tooth surfaces of the two sets of first racks 9. The two sets of first servo motors can drive the first gears to rotate, thereby lifting and lowering the double-layer clamping door through the meshing of the two sets of first gears and the four sets of first racks, thus clamping the top of the speaker and enhancing its practicality.
[0023] As a preferred embodiment of the above, the sliding assembly includes two sets of second servo motors 10, two sets of second gears 11, and two sets of second racks 12. The left end of the protrusion 3 is provided with two sets of sliding grooves, and the right ends of the two sets of sliding grooves are respectively connected to the second servo motors 10. The output ends of the two sets of second servo motors 10 are respectively engaged with the tooth surfaces of the second gears 11. The bottom ends of the single-layer clamping doors 5 are respectively connected to the second racks 12, and the two sets of second gears 11 are respectively engaged with the tooth surfaces of the second racks 12. The two sets of second servo motors can drive the second gears to rotate, thereby driving the two sets of single-layer clamping doors engaged by the tooth surfaces of the second gears to operate synchronously. This allows the speaker to be clamped left and right by the two sets of single-layer clamping doors, thereby enhancing practicality.
[0024] As a preferred embodiment of the above, the cover plate assembly includes two sets of first support blocks 13, two sets of second support blocks 14, a first cover plate 15, and four sets of first screws 16. A section of the mounting groove is connected to the two sets of first support blocks 13, and the left end of the protrusion 3 is connected to the two sets of second support blocks 14. The left ends of the two sets of first support blocks 13 and the two sets of second support blocks 14 are respectively provided with first threaded holes. The front end of the first cover plate 15 is provided with four sets of first through holes, and the four sets of first screws 16 are respectively threadedly connected to the first threaded holes through the first through holes. The front right end of the first cover plate 15 is provided with a second through groove. The mounting groove can be fixed by the first cover plate and the four sets of first screws, which facilitates the maintenance and repair of the parts in the mounting groove and enhances its practicality.
[0025] As a preferred embodiment of the above, the sound-absorbing component includes a reflector 17, sound-absorbing cotton 18, and two sets of bass reflex ports 19. The inner left side of the test chamber 1 is connected to the reflector 17, and the right side of the reflector 17 is connected to the sound-absorbing cotton 18. The reflector 17, the sound-absorbing cotton 18, and the left side of the test chamber 1 are each provided with four sets of rear bass reflex ports. The two sets of bass reflex ports 19 are respectively connected to the six sets of rear bass reflex ports. This effectively absorbs excess sound waves generated during the test, further reduces the influence of the external environment on the test results, improves the professionalism and controllability of the test environment, and thus enhances practicality.
[0026] As a preferred embodiment of the above, all four sets of first through holes are countersunk holes; the four sets of first screws can be hidden through the countersunk holes, thereby enhancing practicality.
[0027] As a preferred embodiment of the above, the bottom end of the double-layer clamping door 4 is provided with two sets of first rubber strips 20, and the inner ends of the two sets of single-layer clamping doors 5 are respectively provided with second rubber strips 21; the sealing between the two sets of single-layer clamping doors and the double-layer clamping door and the speaker can be enhanced by the two sets of first rubber strips and the two sets of second rubber strips, thereby enhancing practicality.
[0028] As a preferred embodiment of the above, the metal partition 2 is made of aluminum alloy, and the left and right ends of the metal partition 2 are respectively coated with a layer of sound-absorbing material; aluminum alloy has good sound insulation properties, and the coated sound-absorbing material can enhance the sound insulation effect of the metal partition, thereby enhancing its practicality.
[0029] This utility model discloses an auxiliary device for acoustic testing of speakers. Its working principle is as follows: First, the test chamber is placed in a suitable position. Then, when speaker testing is required, four servo motors are activated to move the double-layer clamping door and the single-layer clamping door outwards respectively. The speaker is then placed in the first through slot. Next, the four servo motors are activated. Two sets of first servo motors drive the first gear to rotate. These two sets of first gears then drive the first rack with meshing teeth to move, thereby lowering the double-layer clamping door. Simultaneously, two sets of second gears drive... The second rack with meshing teeth moves inward to fix the speaker cabinet with the two sets of single-layer and double-layer clamping doors. The two sets of first and second rubber strips enhance the seal between the speaker cabinet and the two sets of single-layer and double-layer clamping doors. Then the speaker cabinet can be tested. When the speaker cabinet is turned on, the sound emitted from the rear of the speaker cabinet will resonate and absorb and release small sounds through the sound-absorbing cotton, reflector and bass reflex tube. The sound at this time can be clearer. After the test, the speaker cabinet can be removed for the next speaker cabinet test.
[0030] The terms “vertical,” “horizontal,” “left,” “right,” and similar expressions used in this article are for illustrative purposes only.
[0031] In this utility model, the terms "first," "second," and "third" do not represent a specific quantity or order, but are merely used to distinguish names.
[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. An auxiliary device for acoustic testing of speakers, characterized in that, The test chamber (1) includes two sets of single-layer clamping doors (5) and a speaker (6). A metal partition (2) is provided in the middle of the test chamber (1). A sound-absorbing component is provided at the left end of the test chamber (1). A first through groove is provided at the right end of the metal partition (2). A cover plate component is provided at the left end of the metal partition (2). An installation groove is provided at the left end of the metal partition (2). A protrusion (3) is provided at the bottom of the installation groove. A double-layer clamping door (4) is provided in the installation groove. (4) has a lifting component on the left end, and a through groove is provided at the front end of the double-layer detection door. The through groove is slidably engaged with the two single-layer clamping doors (5). The left end of the protrusion (3) is slidably attached to the two single-layer clamping doors (5). The bottom ends of the two single-layer clamping doors (5) are respectively provided with sliding components. The bottom end of the speaker (6) is attached to the through groove. The bottom end of the first through groove is attached to the speaker (6). The inner ends of the two single-layer clamping doors (5) are respectively attached to the speaker (6).
2. The auxiliary device for speaker acoustic testing as described in claim 1, characterized in that, The lifting assembly includes two sets of first servo motors (7), two sets of first gears (8), and four sets of first racks (9). Lifting slots are provided at the front and rear ends of the mounting slots. The right ends of the two sets of lifting slots are connected to the first servo motors (7). The output ends of the two sets of first servo motors (7) are connected to the first gears (8). The outer ends of the double-layer clamping door (4) are connected to the two sets of first racks (9). The two sets of first gears (8) mesh with the tooth surfaces of the two sets of first racks (9).
3. The auxiliary device for speaker acoustic testing as described in claim 2, characterized in that, The sliding assembly includes two sets of second servo motors (10), two sets of second gears (11), and two sets of second racks (12). The left end of the protrusion (3) is provided with two sets of sliding grooves. The right ends of the two sets of sliding grooves are respectively connected to the second servo motors (10). The output ends of the two sets of second servo motors (10) are respectively engaged with the tooth surfaces of the second gears (11). The bottom end of the single-layer clamping door (5) is respectively connected to the second racks (12). The two sets of second gears (11) are respectively engaged with the tooth surfaces of the second racks (12).
4. The auxiliary device for speaker acoustic testing as described in claim 3, characterized in that, The cover plate assembly includes two sets of first support blocks (13), two sets of second support blocks (14), a first cover plate (15), and four sets of first screws (16). A section of the mounting groove is connected to the two sets of first support blocks (13), and the left end of the protrusion (3) is connected to the two sets of second support blocks (14). The left ends of the two sets of first support blocks (13) and the two sets of second support blocks (14) are respectively provided with first threaded holes. The front end of the first cover plate (15) is provided with four sets of first through holes. The four sets of first screws (16) are respectively threaded through the first through holes and the first threaded holes. The front right end of the first cover plate (15) is provided with a second through groove.
5. The auxiliary device for speaker acoustic testing as described in claim 4, characterized in that, The sound-absorbing assembly includes a reflector (17), sound-absorbing cotton (18), and two sets of bass reflex tubes (19). The inner left side of the test chamber (1) is connected to the reflector (17), and the right side of the reflector (17) is connected to the sound-absorbing cotton (18). The reflector (17), the sound-absorbing cotton (18), and the left side of the test chamber (1) are each provided with four sets of rear bass reflex holes. The two sets of bass reflex tubes (19) are respectively connected to the six sets of rear bass reflex holes.
6. The auxiliary device for speaker acoustic testing as described in claim 5, characterized in that, All four sets of first through holes are set as countersunk holes.
7. An auxiliary device for acoustic testing of a speaker as described in claim 6, characterized in that, The bottom end of the double-layer clamping door (4) is provided with two sets of first rubber strips (20), and the inner ends of the two sets of single-layer clamping doors (5) are respectively provided with second rubber strips (21).
8. The auxiliary device for speaker acoustic testing as described in claim 1, characterized in that, The metal partition (2) is made of aluminum alloy, and the left and right ends of the metal partition (2) are coated with a layer of sound-absorbing material.