CN216721342U - Acoustic signal shielding device - Google Patents
Acoustic signal shielding device Download PDFInfo
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- CN216721342U CN216721342U CN202220401625.9U CN202220401625U CN216721342U CN 216721342 U CN216721342 U CN 216721342U CN 202220401625 U CN202220401625 U CN 202220401625U CN 216721342 U CN216721342 U CN 216721342U
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- shielding
- signal shielding
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Abstract
The present application relates to an acoustic signal shielding apparatus. The apparatus comprises: first cavity and second cavity set up the through-hole between first cavity and the second cavity, and the casing that forms first cavity and second cavity includes: the electronic equipment to be acoustically shielded is placed in the first cavity through the supporting material and the shielding material, external acoustic signals transmitted into the first cavity are weakened through the sound absorbing material and/or the sound insulating material, meanwhile, acoustic interference signals transmitted by the acoustic interference device in the second cavity are transmitted into the first cavity through the through holes, and recording of the acoustic signals of the electronic equipment is damaged, so that information leakage is prevented.
Description
Technical Field
The application relates to the technical field of office secrecy supplies, in particular to acoustic signal shielding equipment.
Background
As the information age has developed, the security requirements for specific information within a specific range have become higher. Many industries and units clearly propose that intelligent electronic equipment cannot be brought into important office places such as meeting rooms and offices to prevent important information from being stolen due to the fact that the important information is recorded by the intelligent electronic equipment. In order to prevent electromagnetic signals of intelligent electronic equipment such as a mobile phone and the like from being illegally intercepted and causing information leakage, office facilities such as an electronic equipment storage cabinet or a shielding cabinet and the like are arranged outside a conference room or an office. However, these office facilities are difficult to be applied in offices, especially portable to move or place on desks, because they are bulky and do not have an acoustic shielding function. In order to solve the above problems, some have proposed to make a portable box with conductive materials, and at the same time, have the function of acoustic interference to shield electromagnetic signals and acoustic signals, but here the acoustic interference is realized by active interference, which is powered by a battery, in order to keep a good endurance, the energy of the emitted acoustic interference signal is small, and for the general speech communication of people, good interference can be realized, but for a loudspeaker or a horn, the emitted acoustic energy is large, and sometimes it is difficult to realize good acoustic interference.
Disclosure of Invention
In view of the above, there is a need to provide an acoustic signal shielding apparatus capable of simultaneously interfering and blocking acoustic signals,
an acoustic signal shielding apparatus, the apparatus comprising:
the device comprises a first cavity and a second cavity, wherein a through hole is formed between the first cavity and the second cavity;
the first cavity is used for placing electronic equipment to be shielded;
the second cavity is used for placing an acoustic interference device;
the housing forming the first and second cavities includes: a support material and a shielding material; the shielding material is a sound absorbing material and/or a sound insulating material.
In one embodiment, the first cavity is an up/side open cavity;
the shell forming the first cavity comprises a movable closing plate;
and covering the first cavity with the upper/side opening by the movable closing plate.
In one embodiment, the acoustic interference device transmits an acoustic interference signal to the first cavity through the through hole.
In one embodiment, the shielding material is conformed to the support material;
the shielding material is used for weakening an external acoustic signal received by the first cavity.
In one embodiment, the support material comprises glass, plastic, or metal.
In one embodiment, the sound insulating material comprises hollow silica glass, hollow plexiglass or hollow polytetrafluoroethylene sheet.
In one embodiment, the sound absorbing material comprises sound absorbing foam, a polyester fiber sound absorbing board, or an aerogel sandwich panel.
In one embodiment, the shielding material is conformed to the support material, including:
the shielding material is attached to the supporting material through glue.
The acoustic signal shielding apparatus includes: first cavity and second cavity, first cavity are used for placing and wait to shield electronic equipment, and the second cavity is used for placing the acoustic interference device, sets up the through-hole between first cavity and the second cavity, and the casing that forms first cavity and second cavity includes: a support material and a shielding material; the shielding material is a sound absorbing material and/or a sound insulating material.
The electronic equipment to be shielded is placed into the first cavity, the sound signal transmission outside the sound signal shielding device is weakened through the sound absorbing material and/or the sound insulation material and is transmitted into the first cavity, meanwhile, the sound interference signal transmitted by the sound interference device in the second cavity is transmitted into the first cavity through the through hole, the recording of the sound signal of the electronic equipment is damaged, and therefore information leakage is prevented.
Drawings
Fig. 1 is a schematic view of an acoustic signal shielding apparatus in one embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
In one embodiment, an acoustic signal shielding apparatus includes:
a first cavity and a second cavity.
Set up the through-hole between first cavity and the second cavity, first cavity is used for placing and treats shielding electronic equipment, and the second cavity is used for placing the acoustic interference device.
The shape of the through hole can be selected according to the requirement, and can be round, rectangular or oval, the size of the through hole is not too large, and the through hole only needs not to block the transmission of the acoustic interference signal emitted by the acoustic signal interference device. The electronic device to be shielded is generally an electronic device that can perform sound recording.
The sound interference device can enable the recording equipment to record only one piece of noise but not the conversation content of the speaker by emitting white noise outside the human hearing frequency range, and the recorded sound cannot restore the sound of the speaker even after post-processing, so that the conversation content is effectively protected from being leaked due to secret recording.
The housing forming the first and second cavities includes: the sound insulation board comprises a supporting material and a shielding material, wherein the shielding material is a sound absorption material and/or a sound insulation material.
The sound-absorbing material is a material which can well absorb or transmit sound waves, and the sound-insulating material is a material which has little transmission energy and penetrates through the material to enter the other side when the sound waves are incident on the surface of the material.
The electronic equipment to be shielded is placed into the first cavity of the acoustic signal shielding equipment, the sound-absorbing material and/or the sound-insulating material are used for weakening the external acoustic signal of the shielding device transmitted into the first cavity, meanwhile, the acoustic interference signal transmitted by the acoustic interference device in the second cavity is transmitted into the first cavity through the through hole, the recording of the acoustic signal of the electronic equipment is damaged, and therefore information leakage is prevented.
In one embodiment, the first cavity is an up/side open cavity, and the housing forming the first cavity includes a movable closing plate by which the up/side open first cavity is covered.
When the first cavity is a cavity with an upper opening, it can be understood that a handle is arranged on the movable closing plate, the first cavity is opened through the handle, the electronic device to be shielded is placed into the first cavity, and then the first cavity can be closed through the handle to form a closed state.
When the first cavity is a side-opening cavity, it can be understood that the acoustic signal shielding device is a drawer-type structure, and the first cavity can be opened or closed by a handle arranged on the movable closing plate.
As shown in fig. 1, a schematic diagram of an acoustic signal shielding apparatus is provided, where the acoustic signal shielding apparatus is a hexahedral structure, the first cavity is an upper opening cavity, a handle is disposed on the movable closing plate, upper and lower inner surfaces of the housing forming the first cavity and the second cavity are made of sound insulating materials, four inner side surfaces are made of sound absorbing materials, and a supporting material of an outer layer of the housing also plays a role in protection, so that the protective housing represents the housing containing the supporting material in the diagram, the closed housing means that when the upper opening is closed, the housing is in a closed state, and is called a closed housing, and a device for releasing an acoustic interference signal is an acoustic interference device. It should be noted that the layout positions of the sound insulating material and the sound absorbing material may be set according to actual needs.
In one embodiment, the acoustic interference apparatus transmits the acoustic interference signal to the first cavity through the through hole.
In one embodiment, a shielding material is attached to the support material, the shielding material configured to attenuate external acoustic signals received by the first cavity. The external acoustic signal here generally refers to the speech sound of a person.
In one embodiment, the support material comprises glass, plastic, metal, or the like.
In one embodiment, the sound insulating material comprises hollow silica glass, hollow plexiglass or hollow polytetrafluoroethylene sheet, or the like.
In one embodiment, the sound absorbing material comprises sound absorbing foam, polyester fiber sound absorbing board, aerogel sandwich board or the like.
In one embodiment, the shielding material is conformed to the support material, comprising: the shielding material is attached to the supporting material through glue.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. An acoustic signal shielding device, characterized in that the device comprises:
the device comprises a first cavity and a second cavity, wherein a through hole is formed between the first cavity and the second cavity;
the first cavity is used for placing electronic equipment to be shielded;
the second cavity is used for placing an acoustic interference device;
the housing forming the first and second cavities includes: a support material and a shielding material; the shielding material is a sound absorbing material and/or a sound insulating material.
2. The acoustic signal shielding apparatus of claim 1, wherein the first cavity is an up/side open cavity;
the shell forming the first cavity comprises a movable closing plate;
and covering the upper/side opening cavities by the movable closing plate.
3. The acoustic signal shielding apparatus of claim 2, wherein the acoustic interference device transmits the acoustic interference signal to the first cavity through the through hole.
4. The acoustic signal shielding apparatus of claim 3, wherein the shielding material is conformed to the support material;
the shielding material is used for weakening an external acoustic signal received by the first cavity.
5. The acoustic signal shielding apparatus of claim 4, wherein the support material comprises glass, plastic, or metal.
6. The acoustic signal shielding apparatus of claim 5, wherein the acoustic barrier material comprises hollow silica glass, hollow plexiglass, or hollow polytetrafluoroethylene sheet.
7. The acoustic signal shielding apparatus of claim 6, wherein the sound absorbing material comprises sound absorbing foam, polyester fiber sound absorbing panels, or aerogel sandwich panels.
8. The acoustic signal shielding apparatus of any of claims 4 to 7, wherein the shielding material is conformed to the support material, comprising:
the shielding material is attached to the supporting material through glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220401625.9U CN216721342U (en) | 2022-02-24 | 2022-02-24 | Acoustic signal shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220401625.9U CN216721342U (en) | 2022-02-24 | 2022-02-24 | Acoustic signal shielding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216721342U true CN216721342U (en) | 2022-06-10 |
Family
ID=81874928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220401625.9U Active CN216721342U (en) | 2022-02-24 | 2022-02-24 | Acoustic signal shielding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216721342U (en) |
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2022
- 2022-02-24 CN CN202220401625.9U patent/CN216721342U/en active Active
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