A sound insulation performance test device

Abstract

The present application belongs to the technical field of sound insulation performance test device design, and specifically relates to a sound insulation performance test device, comprising: an anechoic chamber; a microphone in the anechoic chamber, arranged in the anechoic chamber; a temperature control box, arranged in the anechoic chamber, having a sound insulation performance test piece installation port on the temperature control box, so that the sound insulation performance test piece can be installed; a microphone in the temperature control box, arranged in the temperature control box; a standard sound source, arranged in the temperature control box; and a temperature regulator, arranged in the temperature control box.

Description

Technical Field

[0001] The present application belongs to the technical field of sound insulation performance test device design, and specifically relates to a sound insulation performance test device. Background Art

[0002] In order to verify the sound insulation performance of materials, sound insulation tests are designed. Sound insulation tests of materials based on current test equipment often have the following defects:

[0003] 1) The test temperature cannot be adjusted, which makes it difficult to meet the needs of sound insulation performance testing of materials whose performance parameters are greatly affected by temperature. For example, the performance parameters of composite materials are greatly affected by temperature, and the existing test equipment cannot effectively verify their sound insulation performance under multiple temperature conditions, especially low temperature conditions;

[0004] 2) When installing the test piece, it will cause a certain degree of damage to the test piece;

[0005] 3) It cannot produce a uniform reverberation field, affecting the accuracy of the test results.

[0006] This application is proposed in view of the above-mentioned technical defects.

[0007] It should be noted that the disclosure of the above background technology content is only used to assist in understanding the inventive concept and technical solution of the present invention, and it does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0008] The purpose of the present application is to provide a sound insulation performance test device to overcome or alleviate at least one of the known technical defects.

[0009] The technical solution of this application is:

[0010] A sound insulation performance testing device, comprising:

[0011] Anechoic chamber;

[0012] A microphone in the anechoic chamber is provided in the anechoic chamber;

[0013] A temperature control box is provided in the anechoic chamber and has a sound insulation performance test piece installation opening so as to be able to install the sound insulation performance test piece;

[0014] The microphone in the temperature control box is arranged in the temperature control box;

[0015] Standard sound source, set in a temperature-controlled box;

[0016] The temperature regulator is set in the temperature control box.

[0017] According to at least one embodiment of the present application, in the above-mentioned sound insulation performance testing device, the inner wall of the anechoic chamber is provided with a sound absorbing wedge.

[0018] According to at least one embodiment of the present application, in the above-mentioned sound insulation performance test device, there are multiple microphones in the anechoic chamber, which are distributed facing the installation opening of the sound insulation performance test piece.

[0019] According to at least one embodiment of the present application, in the above-mentioned sound insulation performance testing device, there are multiple microphones in the temperature control box, which are distributed in various places in the temperature control box.

[0020] According to at least one embodiment of the present application, the above-mentioned sound insulation performance test device further includes:

[0021] The surface microphone of the sound insulation performance test piece is used to be bonded to the inner surface of the sound insulation performance test piece.

[0022] According to at least one embodiment of the present application, the above-mentioned sound insulation performance test device further includes:

[0023] The temperature sensor is used to be bonded to the inner surface of the sound insulation performance test piece.

[0024] According to at least one embodiment of the present application, the above-mentioned sound insulation performance test device further includes:

[0025] The insulation cover is connected to the outside of the temperature control box and has:

[0026] In the closed state, the installation opening of the sound insulation performance test piece is blocked;

[0027] In the open state, remove the obstruction on the installation opening of the sound insulation performance test piece.

[0028] According to at least one embodiment of the present application, in the above-mentioned sound insulation performance test device, the edge of the sound insulation performance test piece is straight;

[0029] The sound insulation performance test device also includes:

[0030] The pad is connected to the temperature control box and surrounds the installation opening of the sound insulation performance test piece;

[0031] The clamping plate is arranged opposite to the backing plate so as to be able to clamp the edge of the sound insulation performance test piece.

[0032] According to at least one embodiment of the present application, the above-mentioned sound insulation performance test device further includes:

[0033] Multiple clamps are used to clamp the pads and splints.

[0034] According to at least one embodiment of the present application, in the above-mentioned sound insulation performance testing device, an arc-shaped sound wave reflector is provided on the inner wall of the temperature control box. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a schematic diagram of a sound insulation performance test device provided in an embodiment of the present application;

[0036] Figure 2 It is a partial schematic diagram of the sound insulation performance test device provided in an embodiment of the present application;

[0037] in:

[0038] 1-anechoic chamber; 2-sound-absorbing wedge; 3-microphone in the anechoic chamber; 4-temperature control box; 5-sound insulation performance test piece; 6-microphone in the temperature control box; 7-standard sound source; 8-temperature regulator; 9-microphone on the surface of the sound insulation performance test piece; 10-temperature sensor; 11-insulation cover; 12-pad; 13-plywood; 14-clamp; 15-arc-shaped sound wave reflector; 16-roller.

[0039] In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; in addition, the drawings are used for illustrative purposes, and the terms describing the positional relationship are limited to illustrative purposes and cannot be understood as limitations on this patent. DETAILED DESCRIPTION

[0040] In order to make the technical solution and advantages of the present application clearer, the technical solution of the present application will be further described in detail in detail and in detail in conjunction with the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the present application, which are only used to explain the present application, not to limit the present application. It should be noted that, for the convenience of description, only the parts related to the present application are shown in the accompanying drawings, and other related parts can refer to the general design. In the absence of conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0041] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application shall be the common meanings understood by the general technicians in the field to which this application belongs. The words "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inside", "outside" and other words indicating orientation used in the description of this application are only used to indicate the relative direction or positional relationship, and do not imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, so it cannot be understood as a limitation on this application. The "first", "second", "third" and similar terms used in the description of this application are only used for descriptive purposes to distinguish different components, and cannot be understood as indicating or implying relative importance. The similar words "one", "one" or "the" used in the description of this application should not be understood as an absolute limitation on quantity, but should be understood as the existence of at least one. The similar words "including" or "comprising" used in the description of this application mean that the elements or objects appearing in front of the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0042] In addition, it should be noted that, unless otherwise clearly specified and limited, the words "installed", "connected", "connected" and similar terms used in the description of this application should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. Technical personnel in the field can understand their specific meanings in this application according to the specific circumstances.

[0043] The following is combined with Figure 1 to Figure 2 This application is described in further detail.

[0044] A sound insulation performance testing device, comprising:

[0045] Anechoic chamber 1;

[0046] An anechoic chamber microphone 3 is arranged in the anechoic chamber 1;

[0047] A temperature control box 4 is provided in the anechoic chamber 1 and has a sound insulation performance test piece installation opening so as to be able to install a sound insulation performance test piece 5;

[0048] A microphone 6 in the temperature control box is arranged in the temperature control box 4;

[0049] A standard sound source 7 is provided in the temperature control box 4;

[0050] The temperature regulator 8 is arranged in the temperature control box 4 .

[0051] For the sound insulation performance test device disclosed in the above embodiment, it can be understood by those skilled in the art that, when conducting a sound insulation performance test piece, the sound insulation performance test piece 5 is made of corresponding materials and installed in the sound insulation performance test piece installation port, and the corresponding sound waves are generated by controlling the standard sound source 7, and the sound data in the temperature control box 4 and the anechoic chamber 1 are monitored by connecting the microphone 6 in the temperature control box and the microphone 3 in the anechoic chamber to the corresponding data acquisition and analysis equipment, and the sound insulation performance of the sound insulation performance test piece 5 is evaluated by the difference.

[0052] Regarding the sound insulation performance test device disclosed in the above embodiment, technicians in the field can also understand that the temperature control box 4 and other components are arranged as a whole in the anechoic chamber 1, which can avoid interference from external noise and ensure the validity of the test data.

[0053] For the sound insulation performance test device disclosed in the above embodiment, technicians in the field can also understand that a regulator 8 is set in the temperature control box 4, which can specifically be an air conditioner, a refrigerator and other equipment, which can adjust the temperature in the temperature control box 4, that is, it can adjust the temperature of the sound insulation performance test piece 5, so as to verify the sound insulation performance of the sound insulation performance test piece 5 under multiple temperature conditions.

[0054] In some optional embodiments, in the above-mentioned sound insulation performance testing device, the temperature control box 4 is made of thermal insulation material.

[0055] In some optional embodiments, in the above-mentioned sound insulation performance testing device, the standard sound source 7 is a non-directional standard sound source.

[0056] In some optional embodiments, in the above-mentioned sound insulation performance test device, the inner wall of the anechoic chamber 1 is provided with a sound absorbing wedge 2.

[0057] For the sound insulation performance test device disclosed in the above embodiment, those skilled in the art can understand that the sound absorbing wedge 2 provided on the inner wall of the anechoic chamber 1 can absorb sound waves and prevent the sound wave reflection from affecting the accuracy of the test data.

[0058] In some optional embodiments, in the above-mentioned sound insulation performance test device, there are multiple microphones 3 in the anechoic chamber, which are distributed facing the installation opening of the sound insulation performance test piece.

[0059] In some optional embodiments, in the above-mentioned sound insulation performance test device, there are multiple microphones 6 in the temperature control box, which are distributed in various places in the temperature control box 4.

[0060] As for the sound insulation performance test device disclosed in the above embodiment, it can be understood by those skilled in the art that the device is designed with multiple microphones 6 in the temperature control box and multiple microphones 3 in the anechoic chamber, which can be connected to corresponding data acquisition and analysis equipment to monitor the sound data in the temperature control box 4 and the anechoic chamber 1, and the sound insulation performance of the sound insulation performance test piece 5 is evaluated by the difference in the mean values ​​of the sound data monitored by the microphones 6 in the temperature control box and the microphones 3 in the anechoic chamber.

[0061] In some optional embodiments, the above-mentioned sound insulation performance test device further includes:

[0062] The sound insulation performance test piece surface microphone 9 is used to be bonded to the inner surface of the sound insulation performance test piece 5 so as to be connected to corresponding data acquisition and analysis equipment to monitor the sound data of the inner surface of the sound insulation performance test piece 5 .

[0063] In some optional embodiments, the above-mentioned sound insulation performance test device further includes:

[0064] The temperature sensor 10 is used to be bonded to the inner surface of the sound insulation performance test piece 5 so as to be connected to a corresponding data acquisition and analysis device to monitor the temperature data of the inner surface of the sound insulation performance test piece 5 .

[0065] In some optional embodiments, the above-mentioned sound insulation performance test device further includes:

[0066] The heat preservation cover 11 is connected to the outside of the temperature control box 4 and has:

[0067] In the closed state, the installation opening of the sound insulation performance test piece is blocked;

[0068] In the open state, remove the obstruction on the installation opening of the sound insulation performance test piece.

[0069] For the sound insulation performance test device disclosed in the above embodiment, it can be understood by those skilled in the art that when adjusting the temperature in the temperature control box 4, the heat preservation cover 11 can be set in a closed state, so as to effectively block the flow of heat between the temperature control box 4 and the anechoic chamber 1, and the temperature in the temperature control box 4 can be quickly adjusted. When monitoring the sound data in the temperature control box 4 and the anechoic chamber 1, the heat preservation cover 11 can be set in an open state to ensure the accuracy of the test results.

[0070] In some optional embodiments, in the above-mentioned sound insulation performance test device, the edge of the sound insulation performance test piece 5 is straight;

[0071] The sound insulation performance test device also includes:

[0072] A backing plate 12 is connected to the temperature control box 4 and surrounds the installation opening of the sound insulation performance test piece;

[0073] The clamping plate 13 is arranged opposite to the backing plate 12 so as to clamp the edge of the sound insulation performance test piece 5 .

[0074] As for the sound insulation performance test device disclosed in the above embodiment, it can be understood by those skilled in the art that the edge of the sound insulation performance test piece 5 is designed to be straight, so that it can be easily clamped between the pad 12 and the clamping plate 13, so as to achieve installation at the installation opening of the sound insulation performance test piece, and the sound insulation performance test piece 5 is not easily damaged.

[0075] In some optional embodiments, the above-mentioned sound insulation performance test device further includes:

[0076] A plurality of clamps 14 clamp the backing plate 12 and the clamping plate 13 to clamp the edge of the sound insulation performance test piece 5 .

[0077] In some optional embodiments, in the above-mentioned sound insulation performance test device, an arc-shaped sound wave reflector 15 is provided on the inner wall of the temperature control box 4 .

[0078] For the sound insulation performance test device disclosed in the above embodiment, technicians in the field can understand that the arc-shaped sound wave reflector 15 arranged on the inner wall of the temperature control box 4 can reflect the sound waves generated by the standard sound source 7 in all directions, so that a reverberation field that tends to be uniform is formed in the temperature control box 4, thereby ensuring the accuracy of the test results.

[0079] In some optional embodiments, in the above-mentioned sound insulation performance test device, the sound insulation performance test piece 5 is arc-shaped and protrudes toward the inside of the temperature control box 4 when installed in the sound insulation performance test piece installation port.

[0080] In some optional embodiments, the above-mentioned sound insulation performance test device further includes:

[0081] A plurality of rollers 16 are arranged on the temperature control box 4 .

[0082] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0083] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the scope of protection of the present application.

Claims

1. A sound insulation performance test device, characterized in that: include: Anechoic chamber (1); An in-room microphone (3) is arranged in the in-room microphone (1); A temperature control box (4) is arranged in the anechoic chamber (1) and has a sound insulation performance test piece installation opening so as to be able to install a sound insulation performance test piece (5); an arc-shaped sound wave reflector (15) is arranged on the inner wall of the temperature control box (4); A microphone (6) in a temperature control box, arranged in the temperature control box (4); A standard sound source (7) is arranged in the temperature control box (4); A temperature regulator (8) is arranged in the temperature control box (4); The heat preservation cover (11) is connected to the outside of the temperature control box (4) and has: In a closed state, the installation opening of the sound insulation performance test piece is blocked; In the open state, the installation opening of the sound insulation performance test piece is unblocked; The edge of the sound insulation performance test piece (5) is straight; The sound insulation performance test device also includes: A backing plate (12) connected to the temperature control box (4) and surrounding the installation opening of the sound insulation performance test piece; A clamping plate (13) arranged opposite to the backing plate (12) so as to be able to clamp the edge of the sound insulation performance test piece (5); The sound insulation performance testing device further comprises: A plurality of clamps (14) for clamping the backing plate (12) and the clamping plate (13); There are a plurality of microphones (3) in the anechoic chamber, which are distributed facing the installation opening of the sound insulation performance test piece; There are a plurality of microphones (6) in the temperature control box, which are distributed at various locations in the temperature control box (4); A sound insulation performance test piece surface microphone (9) for bonding to the inner surface of the sound insulation performance test piece (5); The corresponding sound waves are generated by controlling the standard sound source (7), and the sound data in the temperature control box (4) and the anechoic chamber (1) are monitored by connecting the microphone (6) in the temperature control box and the microphone (3) in the anechoic chamber to corresponding data acquisition and analysis equipment, and the sound insulation performance of the sound insulation performance test piece (5) is evaluated based on the difference.

2. The sound insulation performance test device according to claim 1, characterized in that: The inner wall of the silencing chamber (1) is provided with a sound absorbing wedge (2).

3. The sound insulation performance testing device according to claim 1, characterized in that: Also includes: The temperature sensor (10) is used to be bonded to the inner surface of the sound insulation performance test piece (5).

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