CN214585093U

CN214585093U - Highly integrated temperature-variable impedance tube test system product

Info

Publication number: CN214585093U
Application number: CN202120107231.8U
Authority: CN
Inventors: 孙新波
Original assignee: Suzhou Baochi Acoustic Technology Co ltd
Current assignee: Suzhou Baochi Acoustic Technology Co ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-11-02
Anticipated expiration: 2031-01-15

Abstract

The utility model discloses a high integrated variable temperature impedance tube test system product, which comprises a sound absorption test module and a sound insulation test module, wherein a first pipeline is arranged at the middle position of the sound absorption test module, a first loudspeaker is arranged at the left end position of the first pipeline, a first power amplifier and an audio card are arranged at the left end position of the first loudspeaker, and a first battery is arranged at the lower position of the first power amplifier and the audio card, so that the heating device needs to be conveniently disassembled and maintained, thereby being convenient for different test environments and later maintenance requirements, the product mainly takes stainless steel as the main material at present, and can be replaced by plastic or aluminum alloy on non-high temperature resistant parts at the later stage, thereby further realizing the light weight of the product, according to the manufacture of the former sample piece, the sound insulation effect can reach more than 100dB, which is higher than that of a conventional impedance tube, mainly because the sound insulation amount of the material of the tube wall is larger, and devices such as a heating device and the like are introduced, and the device also has a good sound insulation effect.

Description

Highly integrated temperature-variable impedance tube test system product

Technical Field

The utility model belongs to the technical field of the impedance tube is relevant, concretely relates to high integrated alternating temperature impedance tube test system product.

Background

In the requirement of noise reduction and environmental protection, in recent years, the detection of the impedance tube material is widely applied to the test of sound absorption, sound insulation and transmission loss of acoustic materials and related product products, can be used for evaluating the sound absorption, sound insulation and pipeline transmission loss performance of the acoustic materials used in industries such as vehicle, aviation, ship, high-speed rail, household appliances and the like to a certain extent, and can be modified for the second time based on the product to achieve the effects of higher integration and convenient detection, because the technology is mainly used for detecting the performance of the corresponding product at the standard environmental temperature in the using process, and the test site is carried out under the condition that a laboratory fixing rack is provided with a 220V power supply device, a power amplification device and a signal generation device, the use of the conventional test device in the actual engineering is limited by the test environment, and leopard is based on the limitation, a temperature-variable impedance tube test system product with high integration is developed, the product integrates a power supply battery, an alternating current power supply interface, a power amplification device, a signal generation device, a temperature control system, a temperature sensor, a sound sensor, a heating device, a cooling device and the like, the temperature-variable test system product after high integration is larger and heavier in weight and size than a conventional product, the functions of material sound absorption detection and sound insulation detection of the conventional standing wave tube test product are covered, the performance detection functions at different temperatures are expanded, after the product is used, the sound absorption and sound insulation test can be carried out on materials at different temperatures, the sound source and the load side are cooled and protected in an accelerated cooling mode in the temperature-variable process, the heating device can be designed into a buckling installation mode, and is convenient for single-side disassembly under the condition that rapid cooling is needed after heating is finished, the accelerated cooling is realized, so that the test execution efficiency is improved, at present, impedance tube products with the same integration level are searched according to patents and thesis at home and abroad, the same type of products are applied for by the Western-style safety traffic university in the early year, but the patents of the impedance tube products are invalid at present, and other patents of the same type of products do not appear yet.

The existing impedance tube technology has the following problems: in the using process, the corresponding product performance detection is mainly carried out at the standard environment temperature, and the test site is carried out under the conditions of a laboratory fixed rack and a 220V power supply device, a power amplification device and a signal generation device, so that the use problem of the conventional test device in the practical engineering is limited by the test environment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high integrated alternating temperature impedance tube test system product to propose this technique and carry out corresponding product performance under the in-process that uses mainly with standard ambient temperature and detect in solving above-mentioned background art, and the test place is gone on under the condition with laboratory fixed rack and power supply unit, power amplification device and signal generating device of 220V, and the test environment that testing arrangement of for this reason conventionality located has restricted the problem of its use in actual engineering.

In order to achieve the above object, the utility model provides a following technical scheme:

a high-integration temperature-changing impedance tube test system product comprises a sound absorption test module and a sound insulation test module, wherein a first pipeline is arranged at the middle position of the sound absorption test module, a first loudspeaker is arranged at the left end position of the first pipeline, a first power amplifier and a first audio card are arranged at the left end position of the first loudspeaker, a first battery is arranged at the lower position of the first power amplifier and the first audio card, a first water-cooling sound source protective sleeve is arranged at the left end position of the annular surface of the first pipeline, a first water tank is arranged at the bottom end position of the first water-cooling sound source protective sleeve, a first water pump is arranged at the left end position of the top end of the first water tank, a first heating device is arranged at the middle position of the annular surface of the first pipeline, a first heat insulation section is arranged at the surface position of the first heating device, and a first high-temperature microphone is arranged at the uniform position of the top end of the first pipeline, the sound insulation testing device comprises a high-temperature microphone I, a data acquisition instrument I, a computer I, a sound absorption sample piece, a detachable heat insulation end, a power supply line, a temperature control instrument I, a temperature sensor, a pipeline II, a loudspeaker II, a power amplifier and an audio card II, a battery II, a water-cooling sound source protective sleeve and a sound source protective sleeve, wherein the data acquisition instrument I is arranged at the right side position of the high-temperature microphone I, the computer I is arranged at the right side position of the data acquisition instrument I, the sound absorption sample piece is arranged at the right side position of the inner wall of the pipeline I, the detachable heat insulation end is arranged at the right side position of the sound absorption sample piece, the power supply line is arranged at the right side position of the inner wall of the pipeline I, the temperature sensor is arranged at the uniform position of the bottom end of the pipeline I, the pipeline II is arranged at the middle position of the sound insulation testing module, the loudspeaker II is arranged at the left side position of the pipeline II, the power amplifier and the audio card II are arranged at the left side position of the power amplifier and the audio card II, the battery II is arranged at the annular surface of the left side position of the water-cooling sound source protective sleeve, a water tank II is arranged at the bottom end of the water-cooling sound source protective sleeve II, a water pump II is arranged at the left side of the top end of the water tank II, a second heating device is arranged on the right position of the middle of the annular surface of the second pipeline, a heat-insulating layer is arranged on the surface of the second heating device, the top end of the second pipeline is sequentially provided with a fifth temperature sensor, a third high-temperature microphone, a fourth temperature sensor, a third temperature sensor, a second high-temperature microphone and a second temperature sensor from left to right, a second power supply line is arranged at the top end position of the second pipeline, a second temperature controller is arranged at the left end position of the second power supply line, and a second data acquisition instrument is arranged at the right side position of the second pipeline, a second computer is arranged at the right side position of the second data acquisition instrument, and a sound insulation sample piece is arranged at the middle position of the inner wall of the second pipeline.

Preferably, the first power amplifier and audio card and the second power amplifier and audio card are arranged in the same structure, the first loudspeaker and the second loudspeaker are arranged in the same structure, and the first battery and the second battery are arranged in the same structure.

Preferably, the water-cooling sound source protective sleeve is arranged in an annular structure, the first water tank is connected with the water-cooling sound source protective sleeve through a pipeline, and the first water tank is arranged in a hollow groove structure.

Preferably, the first high-temperature microphones are arranged in two, the first high-temperature microphones are vertically arranged in parallel, and the joints of the first high-temperature microphones and the pipeline are arranged at right angles of ninety degrees.

Preferably, temperature sensor is provided with three altogether, temperature sensor's size, dimensions are unanimous setting, be vertical parallel arrangement between the temperature sensor, temperature sensor is the right angle setting of ninety degrees with the junction of pipeline.

Compared with the prior art, the utility model provides a high integrated alternating temperature impedance tube test system product possesses following beneficial effect:

the utility model adopts a new testing device, through the research and development of the product of the integrated variable temperature impedance tube testing system, the temperature environment range of the impedance tube material detection can be wider, thereby better using in more temperature environments in the conventional engineering, better serving for the evaluation of the practical application effect of the engineering material, in the design process, how to carry out on-site assembly and debugging on the equipment needs to be considered, therefore, the heating device needs to be conveniently disassembled and maintained, thereby being convenient for the requirements of different testing environments and later maintenance, at present, the product mainly takes stainless steel as the main part, plastic or aluminum alloy can be adopted to replace on non-high temperature resistant parts in the later period, the light weight is further realized, according to the manufacture of the sample in the former period, the sound insulation effect can reach more than 100dB, which is higher than that of the conventional impedance tube, mainly because the sound insulation amount of the tube wall material is larger, and devices such as the heating device are introduced, the device also has a good sound insulation effect.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic view of a sound absorption testing module of a highly integrated temperature-varying impedance tube testing system product according to the present invention;

fig. 2 is a schematic diagram of a sound insulation test module of a highly integrated temperature-variable impedance tube test system product according to the present invention;

in the figure: 1. a sound absorption test module; 3. a sound insulation test module; 11. a power amplifier and an audio card I; 12. a first loudspeaker; 13. a water-cooled sound source protective sleeve; 14. a first heat preservation section; 15. a high-temperature microphone I; 16. a first heating device; 17. the heat preservation end can be detached; 18. a first data acquisition instrument; 19. a first computer; 20. a sound absorbing sample; 21. a power supply line; 22. a first temperature controller; 23. a temperature sensor; 24. a first water tank; 25. a first water pump; 26. a first battery; 27. a first pipeline; 31. a power amplifier and an audio card II; 32. a second temperature controller; 33. a water-cooling sound source protective sleeve II; 34. a second power supply line; 35. a fifth temperature sensor; 36. a third high-temperature microphone; 37. a fourth temperature sensor; 38. a third temperature sensor; 39. a second high-temperature microphone; 40. a second temperature sensor; 41. a heat-insulating layer; 42. a second data acquisition instrument; 43. a second computer; 44. a second pipeline; 45. a second heating device; 46. a sound insulation sample piece; 47. a second water tank; 48. a second water pump; 49. a second loudspeaker; 50. and a second battery.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-2, the present invention provides a technical solution:

a highly integrated temperature-changing impedance tube test system product comprises a sound absorption test module 1 and a sound insulation test module 3, wherein a first pipeline 27 is arranged at the middle position of the sound absorption test module 1, a first loudspeaker 12 is arranged at the left end position of the first pipeline 27, a first power amplifier and audio card 11 is arranged at the left side position of the first loudspeaker 12, a first battery 26 is arranged at the lower position of the first power amplifier and audio card 11, a water-cooling sound source protective sleeve 13 is arranged at the left side position of the annular surface of the first pipeline 27, a first water tank 24 is arranged at the bottom end position of the water-cooling sound source protective sleeve 13, the water-cooling sound source protective sleeve 13 is in an annular structure, the first water tank 24 is connected with the water-cooling sound source protective sleeve 13 through a pipeline, the first water tank 24 is in a hollow tank structure, a first water pump 25 is arranged at the left side position of the top end of the first water tank 24, a first heating device 16 is arranged at the middle position of the annular surface of the first pipeline 27, the surface position of the heating device I16 is provided with a heat preservation section I14, the top end of the pipeline I27 is provided with a high-temperature microphone I15 at a uniform position, the number of the high-temperature microphone I15 is two, the high-temperature microphone I15 is vertically arranged in parallel, the joint of the high-temperature microphone I15 and the pipeline I27 is arranged at a right angle of ninety degrees, the right side position of the high-temperature microphone I15 is provided with a data acquisition instrument I18, the right side position of the data acquisition instrument I18 is provided with a computer I19, the inner wall of the pipeline I27 is provided with a sound absorption sample piece 20 at the right side position, the right side position of the sound absorption sample piece 20 is provided with a detachable heat preservation end 17, the bottom end of the pipeline I27 is provided with a power supply line 21 at the right side position, the lower position of the power supply line 21 is provided with a temperature controller I22, the bottom end of the pipeline I27 is provided with a temperature sensor 23 at the uniform position, the three temperature sensors 23 are arranged, the size and the size specification of the temperature sensors 23 are consistent, the temperature sensors 23 are vertically arranged in parallel, the joint of the temperature sensors 23 and the first pipeline 27 is arranged at a right angle of ninety degrees, the middle position of the sound insulation test module 3 is provided with a second pipeline 44, the left end position of the second pipeline 44 is provided with a second loudspeaker 49, the left side position of the second loudspeaker 49 is provided with a second power amplifier and audio card 31, the first power amplifier and audio card 11 and the second power amplifier and audio card 31 are arranged in the same structure, the first loudspeaker 12 and the second loudspeaker 49 are arranged in the same structure, the first battery 26 and the second battery 50 are arranged in the same structure, the second battery 50 is arranged at the lower position of the second power amplifier and audio card 31, the annular surface of the second pipeline 44 is provided with a second water-cooling sound source protective sleeve 33 at the left position, the bottom end position of the second water-cooling sound source protective sleeve 33 is provided with a second water tank 47, a second water pump 48 is arranged at the left position of the top end of the second water tank 47, a second heating device 45 is arranged at the right position of the middle of the annular surface of the second pipeline 44, a heat insulating layer 41 is arranged at the surface position of the second heating device 45, a fifth temperature sensor 35, a third high temperature microphone 36, a fourth temperature sensor 37, a third temperature sensor 38, a second high temperature microphone 39 and a second temperature sensor 40 are sequentially arranged at the top end of the second pipeline 44 from left to right, a second power supply line 34 is arranged at the top end of the second pipeline 44, a second temperature controller 32 is arranged at the left position of the second power supply line 34, a second data acquisition instrument 42 is arranged at the right position of the second pipeline 44, a second computer 43 is arranged at the right position of the second data acquisition instrument 42, a sound insulation sample 46 is arranged at the middle position of the inner wall of the second pipeline 44, and a miniaturized power amplifier is integrated in the impedance tube, the sound wave signal generated by the loudspeaker can reach the sound pressure level in the pipe to be more than 160dB, for better matching the signal in the test, the impedance pipe is integrated with a signal generator in the sound source part, the automatic generation of sine signal, impact signal and white noise signal can be realized, in order to ensure the power consumption requirement in the working process of the impedance pipe, a direct current supply battery is adopted to supply power to the impedance pipe, the capacity of the direct current supply battery can reach the continuous working time of the impedance pipe to be more than 8 hours, meanwhile, the battery can be automatically replaced, the later-stage product upgrading and product maintenance are convenient, meanwhile, the design is compatible with the 220V alternating current supply function, the outer wall of the pipeline of the impedance pipe is heated by adopting an internal heating wire heating device, a plurality of temperature test sensors are arranged in the pipe, the real-time test and display of the temperature of the air in the pipe are realized, and the uniformity of the temperature in the pipe is verified through the data of the plurality of the temperature sensors 23, the outer surface of the heating wire is treated by adopting a heat-resistant heat insulation material, the outermost surface of the equipment is prevented from generating higher temperature, the damage to testing personnel or peripheral equipment is avoided, the impedance tube cooling device can realize circulating water in the tube, so that the cooling of a sound source side pipeline and a double-load side pipeline of a sound insulation testing end is accelerated in a convection mode, the cooling device simultaneously carries out circulating water cooling along with the heating process, the safety of an electronic device on the sound source side is ensured, the installation side of a sound absorption and sound insulation testing part is also communicated with the heating device, the tested part and air in the tube are ensured to be in the same temperature environment, the testing accuracy is ensured, the fatigue effect on the electronic device in the working process of a sound source system is considered, the sound insulation plate is arranged between the sound source and the electronic device, the influence of sound load on the electronic device is reduced, and the product reliability is improved.

The utility model discloses a theory of operation and use flow: the utility model discloses after having installed, heating device and cooling device are applied to the impedance pipe, and adopt inside temperature sensor 23 to test the temperature uniformity of section and verify, and wherein the sound absorption test adopts terminal detachable heat preservation device, and the sound insulation side adopts two sections similar sound absorption lateral parts sections, docks to the temperature that realizes the load side is lower, opens and shuts the terminal end cover of load, guarantees to form the dual load, and then realizes the test of sound insulation, temperature control system: data read-in through temperature control system and temperature sensor 23 carries out automatic control to electric heater unit through control system to realize the work and the out of work control of heater strip, make the temperature can be stabilized in the temperature range that needs the test, and carry out the heat preservation in the certain time to the temperature through heat preservation 41, prevent the fluctuation and the rapid change of temperature, guarantee the precision of test, the water-cooling protective sheath: the sound source import adopts the water-cooling protective sheath, prevents that intraductal high-temperature gas from getting into the sound source, causes the damage to the sound source, and is carrying out the sound insulation test equally, and terminal water-cooling jacket realizes the temperature control to the terminal end cover to the realization can be manual when the sound insulation test dismantles terminal end cover, realizes different load effect ((the end cover is opened, the end cover seals) or (the end cover seals, puts into in the end cover and inhales the sound cotton) the load of two types of different grade types all feasible), the data acquisition appearance: the data of the high-temperature microphone is connected with a computer through the device, and signals such as sound absorption and sound insulation of the material are respectively processed through a developed data processing software system in the computer to obtain a detection result of the sound absorption or sound insulation acoustic performance of the material.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high integrated alternating temperature impedance tube test system product, includes sound absorption test module (1) and sound insulation test module (3), its characterized in that: the middle position of the sound absorption testing module (1) is provided with a first pipeline (27), the left end position of the first pipeline (27) is provided with a first loudspeaker (12), the left side position of the first loudspeaker (12) is provided with a first power amplifier and audio card (11), the lower position of the first power amplifier and audio card (11) is provided with a first battery (26), the annular surface of the first pipeline (27) is provided with a water-cooling sound source protective sleeve (13) at the left side position, the bottom end position of the water-cooling sound source protective sleeve (13) is provided with a first water tank (24), the top end of the first water tank (24) is provided with a first water pump (25) at the left side position, the annular surface of the first pipeline (27) is provided with a first heating device (16) at the middle position, and the surface position of the first heating device (16) is provided with a first heat preservation section (14), the top of the first pipeline (27) is provided with a first high-temperature microphone (15) at an even position, the right side position of the first high-temperature microphone (15) is provided with a first data acquisition instrument (18), the right side position of the first data acquisition instrument (18) is provided with a first computer (19), the inner wall of the first pipeline (27) is provided with a first sound absorption sample piece (20) at the right side position, the right side position of the sound absorption sample piece (20) is provided with a detachable heat preservation end (17), the bottom end of the first pipeline (27) is provided with a power supply line (21) at the right side position, the lower position of the power supply line (21) is provided with a first temperature controller (22), the bottom end of the first pipeline (27) is provided with a temperature sensor (23) at the even position, and the middle position of the sound insulation test module (3) is provided with a second pipeline (44), the left end position department of pipeline two (44) is provided with speaker two (49), the left side position department of speaker two (49) is provided with power amplifier and audio card two (31), the lower position department of power amplifier and audio card two (31) is provided with battery two (50), the annular surface of pipeline two (44) is provided with water-cooling sound source protective sheath two (33) locating at the left side position, the bottom position department of water-cooling sound source protective sheath two (33) is provided with basin two (47), the top of basin two (47) is provided with water pump two (48) locating at the left side position, the annular surface of pipeline two (44) is provided with heating device two (45) locating at the middle inclined to the right position department, the surface position department of heating device two (45) is provided with heat preservation (41), the top position department of pipeline two (44) has set gradually temperature sensor five (35) from left to right, Three (36) of high temperature microphone, four (37) of temperature sensor, three (38) of temperature sensor, two (39) of high temperature microphone, two (40) of temperature sensor, the top position department of pipeline two (44) is provided with power supply line two (34), the left end position department of power supply line two (34) is provided with temperature controller two (32), the right side position department of pipeline two (44) is provided with data acquisition instrument two (42), the right side position department of data acquisition instrument two (42) is provided with computer two (43), the inner wall of pipeline two (44) is being located intermediate position department and is being provided with sound insulation appearance (46).

2. The highly integrated temperature varying impedance tube test system product of claim 1, wherein: the power amplifier and audio card I (11) and the power amplifier and audio card II (31) are arranged in the same structure, the loudspeaker I (12) and the loudspeaker II (49) are arranged in the same structure, and the battery I (26) and the battery II (50) are arranged in the same structure.

3. The highly integrated temperature varying impedance tube test system product of claim 1, wherein: the water-cooling sound source protective sleeve (13) is of an annular structure, the first water tank (24) is connected with the water-cooling sound source protective sleeve (13) through a pipeline, and the first water tank (24) is of a hollow groove structure.

4. The highly integrated temperature varying impedance tube test system product of claim 1, wherein: the high-temperature microphone I (15) is provided with two, be vertical parallel arrangement between the high-temperature microphone I (15), the junction of high-temperature microphone I (15) and pipeline I (27) is the right angle setting of ninety degrees.

5. The highly integrated temperature varying impedance tube test system product of claim 1, wherein: temperature sensor (23) are provided with three altogether, the size, the specification of a dimension of temperature sensor (23) are unanimous setting, be vertical parallel arrangement between temperature sensor (23), temperature sensor (23) and the junction of pipeline (27) are ninety degrees right angle settings.