CN115426865B

CN115426865B - Mobile phone shielding cabinet

Info

Publication number: CN115426865B
Application number: CN202211008737.9A
Authority: CN
Inventors: 李锦恭; 张珠健; 余林锋; 简建雄
Original assignee: Guangzhou Guub Technology Co ltd
Current assignee: Guangzhou Guub Technology Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-11-03
Anticipated expiration: 2042-08-22
Also published as: CN115426865A

Abstract

The invention relates to the technical field of confidentiality and discloses a mobile phone shielding cabinet which comprises a cabinet body, a cabinet door, an anti-recording component and a controller, wherein the cabinet body is provided with a cabinet door; the cabinet body is made of electromagnetic shielding materials and is provided with an accommodating cavity with an opening, and a storage area is limited in the accommodating cavity; the cabinet door is made of electromagnetic shielding materials and is combined with the cabinet body to form an electromagnetic shielding container; the anti-recording assembly is arranged in the accommodating cavity and comprises an ultrasonic transmitter, and is used for transmitting ultrasonic waves with the vibration frequency of 20-25kHZ and the decibel value of not less than 75 to the storage area; the controller is electrically connected with the ultrasonic transmitter and used for controlling the opening and closing of the ultrasonic transmitter. The anti-recording component for interfering mobile phone recording through ultrasonic waves is arranged in the mobile phone shielding cabinet, so that the mobile phone shielding cabinet can prevent the mobile phone from being divulged through recording while shielding mobile phone signals, thereby enriching the shielding function of the mobile phone shielding cabinet and improving the confidentiality strength of the mobile phone shielding cabinet.

Description

Mobile phone shielding cabinet

Technical Field

The invention relates to the technical field of confidentiality, in particular to a mobile phone shielding cabinet.

Background

Shielding is one of the main means for suppressing electromagnetic interference and for achieving electromagnetic radiation protection. Electromagnetic shielding is the use of electrically or magnetically conductive materials to limit electromagnetic radiation to a specified spatial range. The purpose is to adopt the shielding body to surround the electromagnetic interference source and restrain the interference of the electromagnetic interference source to the receiver in the surrounding space, or to adopt the shielding body to surround the receiver so as to avoid the interference of the interference source to the receiver.

Electromagnetic shielding can be classified into electric field shielding, magnetic field shielding and electromagnetic field shielding according to its shielding principle. The electric field shielding comprises an electrostatic field and an alternating electric field shielding, the magnetic field shielding comprises a constant magnetic field and an alternating magnetic field shielding, and the electrostatic shielding can be divided into an external electric field shielding case and an internal electric field shielding case. Whatever the shielding, it is practically speaking a question of how the electromagnetic field is distributed in various specific local spaces. In practical application, different shielding methods are selected according to different field sources.

The shielding cabinet is special equipment for isolating electromagnetic wave transmission, and the mobile phone shielding cabinet is secret storage equipment with a signal shielding function, which is designed for secret conferences or other secret tasks.

The existing mobile phone shielding cabinet can only shield mobile phone signals, but does not consider that the risk of secret leakage exists in mobile phone recording.

Thus, improvements are needed in the art.

Disclosure of Invention

The purpose of the invention is that: the mobile phone shielding cabinet is provided to solve the technical problems that the mobile phone shielding cabinet in the prior art can only shield mobile phone signals, but cannot prevent mobile phone recording.

In order to achieve the above object, the present invention provides a mobile phone shielding cabinet, including:

A cabinet body made of electromagnetic shielding material and provided with an accommodating cavity with an opening, wherein a storage area for storing a mobile phone is limited in the accommodating cavity;

the cabinet door is made of electromagnetic shielding materials and is used for sealing the opening of the accommodating cavity and combining with the cabinet body to form an electromagnetic shielding container;

wherein, still include:

the anti-sound recording assembly is arranged in the accommodating cavity and comprises an ultrasonic transmitter, and the ultrasonic transmitter is used for transmitting ultrasonic waves with the vibration frequency of 20-25kHZ and the decibel value of not less than 75 to the storage area;

and the controller is electrically connected with the ultrasonic transmitter and used for controlling the on-off of the ultrasonic transmitter.

In some embodiments of the application, the ultrasonic transmitter is configured to transmit ultrasonic waves having a vibration frequency of 20-25kHZ and a decibel value of not less than 85 to the storage region.

In some embodiments of the application, the ultrasonic transmitter is configured to transmit ultrasonic waves having a vibration frequency of 20-25kHZ and a decibel value of not less than 100 to the storage area.

In some embodiments of the application, further comprising: and the register component is arranged in the accommodating cavity, and the storage area is formed inside the register component.

In some embodiments of the application, the storage area is provided with at least two; the ultrasonic transmitter comprises first ultrasonic transmitting heads, and the first ultrasonic transmitting heads are consistent in number and correspond to the storage areas in position one by one.

In some embodiments of the present application, when the storage area is a chamber structure, it is denoted as a receiving chamber; the first ultrasonic wave transmitting head is arranged in the accommodating cavity.

In some embodiments of the present application, when the storage area is a cavity structure, the storage area is denoted as a containing cavity, and each containing cavity is correspondingly provided with a mounting hole; the first ultrasonic wave transmitting head is arranged at the mounting hole and partially stretches into the accommodating cavity.

In some embodiments of the application, the mounting holes are provided in the same side wall of the register assembly; the anti-recording assembly further comprises a connecting circuit board, and the first ultrasonic emission heads are mounted on the connecting circuit board and correspond to the positions of the mounting holes one by one.

In some embodiments of the application, the mounting holes are located on the same axis of the register assembly.

In some embodiments of the application, the receiving cavity comprises a first chamber and a second chamber; the mounting hole is arranged on the boundary line of the first chamber and the second chamber.

In some embodiments of the present application, a guiding surface is disposed on the inner top wall of the accommodating cavity at the position of the dividing line, and is used for diffusing the ultrasonic waves emitted by the first ultrasonic emitter to the first chamber and the second chamber.

In some embodiments of the present application, the mounting hole is formed on a rear side wall of the accommodating cavity, and the guiding surface is inclined downward from rear to front.

In some embodiments of the present application, an included angle between the surface of the guiding surface and the ultrasonic wave emitted by the first ultrasonic wave emitting head is between 35 ° and 60 °.

In some embodiments of the application, the register assembly is formed by stacking at least two register units, each of which forms one of the receiving cavities and one of the mounting holes.

In some embodiments of the present application, the register assembly is formed by stacking at least two register units longitudinally, the bottom space of the register unit located at the upper layer and the top space of the register unit located at the lower layer together form one accommodating cavity, and the mounting hole is formed on the side wall of the register unit located at the upper layer.

In some embodiments of the application, the registering unit includes a cassette rack and a cassette door;

The box comprises a box frame, a box door and a mounting hole, wherein the box frame is internally provided with a containing cavity, the box door is used for sealing a front opening of the containing cavity, and the mounting hole is formed in the rear side wall of the box frame.

In some embodiments of the application, the registering unit further comprises a drawer box and a driving device;

the drawer box is movably arranged in the accommodating cavity, and the driving device is used for driving the drawer box to enter and exit the accommodating cavity; the drawer box is connected with the box door in a linkage way, when the drawer box stretches out of the accommodating cavity, the box door is synchronously pushed open, and when the drawer box enters the accommodating cavity, the box door is synchronously driven to be closed.

In some embodiments of the application, the ultrasound transmitter further comprises a second ultrasound transmitting head, the second ultrasound transmitting head being arranged at the periphery of the storage area.

In some embodiments of the present application, the anti-recording assembly further includes a switch key, and the switch key is electrically connected to the controller, and is used for controlling the on-off of the ultrasonic transmitter.

In some embodiments of the application, the anti-sound recording assembly further comprises a switch sensor for detecting a switch state of the cabinet door;

the switch sensor is electrically connected with the controller, the controller being configured to:

When the cabinet door is in an open state, the ultrasonic transmitter is controlled to be closed.

In some embodiments of the present application, the anti-recording component further includes a mode selection key for acquiring a mode signal, and the selectable modes include an anti-recording mode and a normal mode;

the mode selection key is electrically connected to the controller, the controller being configured to:

when the anti-recording mode is selected and the cabinet door is in a closed state, controlling the ultrasonic transmitter to be opened;

when a common mode is selected, controlling the ultrasonic transmitter not to be started;

the indication module is used for indicating that the mobile phone shielding cabinet is currently in a common mode or an anti-recording mode.

In some embodiments of the present application, the anti-recording assembly further includes a detecting member for detecting whether an item is stored in the storage area;

the sensing element is electrically connected to the controller, the controller being configured to:

when detecting that articles exist and the cabinet door is in a closed state, controlling the ultrasonic transmitter to be opened;

and when no article is detected, controlling the ultrasonic transmitter not to be started.

In some embodiments of the application, further comprising:

The signal shielding module is arranged in the accommodating cavity;

the cabinet body is provided with a wiring hole communicated with the accommodating cavity;

the signal shielding module comprises a shell, a wiring terminal and a filtering unit;

the shell is made of conductive materials, and a first wire passing duct is arranged in the shell;

the wiring terminal is arranged at the first end of the shell in a penetrating way and is used for plugging an external wire;

the filtering unit comprises a through capacitor penetrating through the second end of the shell, one end of the through capacitor is connected with the wiring terminal in a conductive mode through a conductive wire penetrating through the first wire-passing pore canal, and the other end of the through capacitor is connected with an inner wire of the functional equipment in a conductive mode.

In some embodiments of the present application, a receiving cavity is further provided in the housing and is in communication with the first wire passing duct;

the filtering unit further comprises a filtering capacitor; the filter capacitor is arranged in the storage cavity and is connected with the penetration capacitor in parallel.

In some embodiments of the application, the length of the first wire passage is greater than 3 times its pore size.

In some embodiments of the application, the housing comprises a circuit housing and an outer cover;

the circuit shell is provided with a first inner cavity and a first wire passing hole channel which are communicated with each other in a penetrating manner along the axial direction of the circuit shell, the wiring terminal is arranged in the first inner cavity, and the first wire passing hole channel forms a first wire passing hole at the second end of the circuit shell; the outer cover and the second end of the circuit shell form the containing cavity.

In some embodiments of the application, the housing further comprises a sleeve;

the outer cover is assembled with the second end of the circuit housing through the sleeve such that there is no linkage relationship between the outer cover and the circuit housing.

In some embodiments of the application, further comprising:

the signal shielding module is arranged in the accommodating cavity;

the shell is made of conductive materials, a containing cavity is arranged in the shell, and a third wire passing duct and a fourth wire passing duct which are communicated with two ends of the containing cavity are formed in the shell;

the filter unit is arranged in the storage cavity and is in conductive connection with the shell, one end of the filter unit is in conductive connection with the wiring terminal through a third wire penetrating through the third wire passing hole channel, and the other end of the filter unit is used for being in conductive connection with functional equipment through an inner wire penetrating through the fourth wire passing hole channel.

In some embodiments of the application, the third wire passage has a length greater than 3 times its pore size and the fourth wire passage has a length greater than 3 times its pore size.

In some embodiments of the application, the housing comprises a tube and a first end;

the accommodating cavity is formed in the pipe body, and a first through hole is formed in the first end of the pipe body;

the second end of the first end head and the first through hole form detachable sealing connection, the first end head is provided with a first cavity and a third wire passing duct which are communicated with each other along the axial direction of the pipe body in a penetrating mode, and the wiring terminal is inserted into the first cavity in a plugging mode.

In some embodiments of the application, the housing includes a tube and a second end;

the accommodating cavity is formed in the pipe body, and a second through hole is formed in the second end of the pipe body; the first end of the second end head and the second through hole form detachable sealing connection, and the fourth wire passage is penetratingly arranged on the second end head along the axial direction of the pipe body.

Compared with the prior art, the mobile phone shielding cabinet has the beneficial effects that:

according to the mobile phone shielding cabinet provided by the embodiment of the application, the anti-recording component for interfering mobile phone recording through ultrasonic waves is arranged in the cabinet, so that the mobile phone shielding cabinet can prevent the mobile phone from being divulged through recording while shielding mobile phone signals, thereby enriching the shielding function of the mobile phone shielding cabinet and improving the confidentiality strength of the mobile phone shielding cabinet.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic axial side structure of a mobile phone shielding cabinet according to an embodiment of the present invention;

fig. 2 is a schematic front view of a mobile phone shielding cabinet according to an embodiment of the present invention;

fig. 3 is a schematic rear view of a mobile phone shielding cabinet according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a local explosion structure of a mobile phone shielding cabinet according to an embodiment of the invention;

FIG. 5 is a schematic diagram of the rear view axis side architecture of the register assembly, anti-recording assembly, indication module and master control unit;

FIG. 6 is a schematic diagram of a side view, axial side, of the register assembly, anti-recording assembly, indication module, and master control unit;

FIG. 7 is a schematic diagram of a partial explosion configuration of the register assembly, the indication module and the master control unit;

FIG. 8 is a schematic diagram of a partial explosion configuration of a register file;

FIG. 9 is a schematic diagram of a front view axis side structure of the register unit;

FIG. 10 is a schematic diagram of a side view of an axial side structure of a register unit;

fig. 11 is a schematic view of a bottom axis side structure of the register unit;

FIG. 12 is a schematic diagram of a rear view of a register unit;

FIG. 13 is a sectional view at D-D of FIG. 12;

FIG. 14 is a schematic structural view of an anti-recording assembly;

FIG. 15 is a schematic view of the angle between the ultrasonic angle and the surface of the guide surface;

FIG. 16 is an enlarged view at A in FIG. 4;

fig. 17 is a schematic view of the assembly of the signal shielding module to the shield;

fig. 18 is a schematic diagram of an axial side structure of a first signal shielding module of embodiment 1;

fig. 19 is a schematic diagram of a second axial structure of the first signal shielding module of embodiment 1;

FIG. 20 is a schematic view of the explosive structure of FIG. 18;

FIG. 21 is a schematic view of an exploded construction of the enclosure of FIG. 18;

fig. 22 is a schematic diagram of the structure of the filtering unit of fig. 18;

fig. 23 is a schematic diagram of the front view of the signal shielding module of fig. 18;

FIG. 24 is a cross-sectional view B1-B1 of FIG. 23;

FIG. 25 is a schematic diagram of an axial side structure of the circuit housing of FIG. 18;

FIG. 26 is a schematic diagram II of the axial side structure of the circuit housing of FIG. 18;

FIG. 27 is a schematic elevational view of the circuit housing of FIG. 18;

FIG. 28 is a cross-sectional view taken along line C1-C1 of FIG. 27;

fig. 29 is a schematic diagram of the circuit housing of fig. 18 assembled with a filter unit;

FIG. 30 is a schematic diagram of the axial side structure of the outer cap of FIG. 18;

FIG. 31 is a schematic diagram II of the axial structure of the outer cap of FIG. 18;

FIG. 32 is a schematic elevational view of the outer cover of FIG. 18;

FIG. 33 is a sectional view of D1-D1 of FIG. 32;

FIG. 34 is a schematic view of the assembled outer cover and filter unit of FIG. 18;

FIG. 35 is a schematic axial side elevational view of the sleeve of FIG. 18;

FIG. 36 is a schematic elevational view of the sleeve of FIG. 18;

FIG. 37 is a cross-sectional view E1-E1 of FIG. 36;

FIG. 38 is a schematic view of the assembled position of the circuit housing, filter unit and outer cover of FIG. 18;

FIG. 39 is a schematic diagram showing a circuit connection relationship between the connection terminal and the filter unit of FIG. 18;

fig. 40 is a schematic axial side structure of a shield body provided with a second signal shielding module of embodiment 1;

fig. 41 is an exploded view of a second signal shielding module of embodiment 1;

fig. 42 is a schematic rear view of a shield body provided with a second signal shielding module of embodiment 1;

FIG. 43 is a cross-sectional view A2-A2 of FIG. 42;

FIG. 44 is a schematic view of the tube of FIG. 41;

FIG. 45 is a schematic cross-sectional structural view of the tube of FIG. 41;

FIG. 46 is a schematic cross-sectional structural view of the first head of FIG. 41;

fig. 47 is a schematic view of an axial side structure of the filter unit of fig. 41;

FIG. 48 is a schematic cross-sectional view of the junction head of FIG. 41;

fig. 49 is an enlarged view at B2 in fig. 43;

FIG. 50 is a schematic illustration of the second end of FIG. 41;

FIG. 51 is a second schematic structural view of the second end head of FIG. 41;

FIG. 52 is a schematic cross-sectional view of the second end head of FIG. 41;

fig. 53 is a schematic view of an assembled structure of the shield body, the first terminal, the tap hole terminal, and the filter unit of fig. 41;

FIG. 54 is an enlarged view at C2 of FIG. 53;

fig. 55 is a schematic diagram showing the arrangement of the first ultrasonic wave emitting member and the second ultrasonic wave emitting member in embodiment 2;

in the figure, 100, a cabinet body; 110. a wiring hole; 120. a handle; 130. supporting feet; 140. a hinge structure; 150. sealing foam; 200. a cabinet door; 300. a registering component; 310. a registering unit; 311. a box rack; 3111. a partition portion; 3112. a mounting hole; 312. a first drawer box; 313. a second drawer box; 314. a first cassette door; 315. a second cassette door; 316. a first driving device; 317. a second driving device; 318. a top plate; 319. fixing the straight plate; 400. an anti-recording assembly; 410. a first ultrasonic wave emitting member; 420. connecting a circuit board; 430. a second ultrasonic wave emitting member; 500. an indication module; 600. a signal shielding module; 10. a shield; 610. a housing; 620. a connection terminal; 630. a filtering unit; 601. a first lumen; 602. a first wire passage; 603. a first receiving chamber; 611. a circuit housing; 6111. a first via hole; 6112. a second fitting portion; 6113. a convex ring part; 6114. a step; 612. an outer cover; 6121. a through hole; 6122. a first connection portion; 613. a sleeve; 6131. a concave ring portion; 6132. trepanning; 6133. a second connecting portion; 620. a connection terminal; 6201. a first input; 6202. a first output terminal; 6203. a first electric wire; 630. a filtering unit 630; 631. a filter capacitor; 632. a feedthrough capacitor; 6321. a first external thread; 6322. a duct; 6323. a second electric wire; 640. a gasket; 611A, a tube body; 6111A, a first assembly; 6112A, a second assembly; 612A, first end; 6121A, a first butt joint; 6122A, a first lumen; 6123A, a third wire passage; 6124A, a third butt joint portion; 6125A, third via hole; 613A, a second end; 6131A, a second butt joint; 6132A, fourth wire passage; 6133A, fourth wire through hole; 631A, conductive clips; 650. a receiving hole end; 651. a fitting hole; 652. a third assembly section; 653. a groove.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 55, the mobile phone shielding cabinet provided by the application mainly comprises a cabinet body 100, a cabinet door 200, an anti-recording assembly 400 and a controller 700.

The cabinet 100 is made of an electromagnetic shielding material and has an accommodation cavity with an opening, and a storage area for storing a mobile phone is defined in the accommodation cavity.

The cabinet door 200 is made of an electromagnetic shielding material for closing the opening of the accommodating chamber, and is combined with the cabinet body 100 to form an electromagnetic shielding container (shielding body).

The anti-recording assembly 400 is arranged in the accommodating cavity, and the anti-recording assembly 400 comprises an ultrasonic transmitter, wherein the ultrasonic transmitter is used for transmitting ultrasonic waves with the vibration frequency of 20-25kHZ and the decibel value of not less than 75 to the storage area.

The controller 700 is electrically connected with the ultrasonic transmitter and is used for controlling the on-off of the ultrasonic transmitter.

The application defines that the vibration frequency of the ultrasonic wave emitted by the ultrasonic transmitter is between 20 and 25kHZ. When the vibration frequency of the ultrasonic wave is lower than 20kHZ, the ultrasonic wave can be heard by the human ear, and the user around the mobile phone shielding cabinet can be influenced, so that the ear discomfort of the user is caused. Through investigation of common mobile phones on the market, it is found that when the vibration frequency of ultrasonic waves is higher than 25kHZ, the ultrasonic waves cannot be recorded by a recorder of the mobile phone, and the recording prevention function is invalid. The application thus defines that the vibration frequency of the ultrasonic waves is between 20 and 25kHZ, with 23kHZ being preferred.

Based on the above structure and the defined values, the applicant conducted experiments concerning the influence of the decibel value of the ultrasonic wave on the sound recording preventing effect.

The quantitative conditions for this experiment included:

the mobile phone is placed in position. The mobile phones were placed in the storage area, and the placement positions of the mobile phones in each group of experiments were the same.

And secondly, the ultrasonic vibration frequency of an ultrasonic emitter (the ultrasonic emitter). The ultrasonic vibration frequency emitted by the ultrasonic emitter in each group of experiments is 23kHZ.

Third, the position of the player (to simulate a human voice) and the measurement point of the played audio decibel value. In each group of experiments, the player is placed on one side of the cabinet door 200 of the mobile phone shielding cabinet and is positioned in the center, and the linear distance between the player and the cabinet door 200 of the mobile phone shielding cabinet is 50cm. The measuring points of the played audio decibel values are located in the storage area, and the measuring points of the played audio decibel values in each group of experiments are the same.

The variable conditions of the experiment include: the total input power (W) of ultrasonic waves of an ultrasonic wave emitter (the ultrasonic wave emitter).

The experimental results include:

and one decibel value of the ultrasonic wave emitted by the ultrasonic transmitter. The measuring points of the ultrasonic decibel values sent by the ultrasonic transmitter are located in the storage area, and the measuring points of the ultrasonic decibel values in each group of experiments are the same.

And secondly, preventing the recording condition. The symbol "x" indicates that the mobile phone can record (i.e., can hear the recorded sound), and the recording preventing effect is poor; the symbol "+. ∈" indicates the critical point for the recording of the handset (i.e. only the recording is amplified, can hear the fuzzy intermittent sound) and has a certain anti-recording effect; the symbol 'v' indicates that the mobile phone cannot record (i.e. cannot hear the recorded sound), and the anti-recording effect is good.

Referring to table 6 below, table 6 is 2019-2021 chinese smartphone sales and market share statistics, the data is derived from "Canalys smartphone analysis statistics (sales statistics)", and the data in table 6 shows that the five manufacturers in the top five years (2019-2021) market share ranking include millet, vivo, oppo, hua ji and Apple (Apple). According to the data, 5 groups of experiments are designed and respectively marked as experiment 1, experiment 2, experiment 3, experiment 4 and experiment 5, wherein the mobile phone adopted in the experiment 1 is millet 9pro, the mobile phone adopted in the experiment 2 is vio-Z1, the mobile phone adopted in the experiment 3 is oppo-R15, the mobile phone adopted in the experiment 4 is Hua P40, and the mobile phone adopted in the experiment 5 is apple iphone12.

Each group of experiments is respectively designed with three groups of sub-experiments 1, 2 and 3 with different decibel values of the playing audio, and in the sub-experiment 1, the decibel value of the playing audio measured at the measuring point is 60; in the sub-experiment 2, the decibel value measured at the measuring point of the played audio is 70; in sub-experiment 3, the decibel value of the played audio measured at the measurement point was 80. In general, the volume of a normal speaker's voice is about 30-60dB, and the volume of a voice in a general conference room is about 60-90dB, and when the volume exceeds 90dB, the sense of discomfort will occur to the human ear. And because the cabinet body structure of the shielding cabinet has a certain blocking effect on sound, the decibel value of the played audio at the measuring point is about 10-20dB smaller than the actual decibel value. In the experiment, the set decibel value of the played audio at the measuring point is higher, and the corresponding situation is more than a general scene in practice. For example, when the decibel value of the played audio at the measurement point is 60, the sound source is about 80dB in the conference space outside the cabinet, which belongs to the scene with larger volume; when the decibel value of the played audio at the measurement point is 70, the sound source is about 90dB in the conference space outside the cabinet, and the method belongs to a noisy scene; when the decibel value of the played audio at the measurement point is 80, the sound source is about 100dB in the conference space outside the cabinet, and the audio source belongs to a scene with sharp sound and uncomfortable feeling of human ears, generally cannot appear, and belongs to a more extreme case.

The data for experiment 1 are shown in table 1 below:

TABLE 1

The data for experiment 2 are shown in table 2 below:

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TABLE 2

The data for experiment 3 are shown in table 3 below:

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TABLE 3 Table 3

The data for experiment 4 are shown in table 4 below:

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TABLE 4 Table 4

The data for experiment 5 are shown in table 5 below:

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TABLE 5

TABLE 6

From the data analysis of experiments 1-5, it can be seen that:

for the situation that the decibel value measured at the measuring point of the played audio is 60, 70 or 80, when the decibel value of the ultrasonic wave is smaller than 75, the mobile phone can record sound, and the sound-recording preventing effect cannot be achieved.

For the situation that the decibel value measured at the measuring point of the played audio is 60 or 70, when the decibel value of the ultrasonic wave is larger than 75, the mobile phone cannot record sound, and the sound recording prevention effect can be achieved.

For the situation that the decibel value of the played audio frequency measured at the measuring point is 60, 70 or 80, when the decibel value of the ultrasonic wave is more than 85, the mobile phone cannot record sound, and the anti-recording effect can be achieved.

For the situation that the decibel value of the played audio frequency measured at the measuring point is 60, 70 or 80, when the decibel value of the ultrasonic wave is larger than 90, the mobile phone cannot record sound, and the anti-recording effect can be achieved.

For the situation that the decibel value of the played audio frequency measured at the measuring point is 60, 70 or 80, when the decibel value of the ultrasonic wave is more than 100, the mobile phone cannot record sound, and the anti-recording effect can be achieved.

According to table 6, market share of 2019-2021 of the top five vendors totals 270.3%, accounting for more than 90% of the total 300%. Further, as is known from the above data analysis, in the case where the decibel value measured at the measurement point of the played audio is 60 or 70, the sound recording preventing function can be realized when the decibel value of the ultrasonic wave at the measurement point is not less than 75.

That is, the conclusions that can be drawn from the data of this experiment are: when the ultrasonic transmitter is limited to transmit ultrasonic waves with the vibration frequency of 20-25kHZ and the decibel value not less than 75 to the storage area, the mobile phone shielding cabinet can realize the anti-recording function aiming at the common manufacturer types of ninety percent in the market in conference scenes with larger volume (corresponding to the situation that the decibel value measured by playing audio at a measuring point is 60) and noisier sound (corresponding to the situation that the decibel value measured by playing audio at the measuring point is 70).

Furthermore, in order to cope with extremely noisy conference scenes (corresponding to the situation that the decibel value measured at the measurement point of the played audio is 80) with sharp sounds and uncomfortable ears, the ultrasonic transmitter can be limited to transmit ultrasonic waves with the vibration frequency of 20-25kHZ and the decibel value not less than 85 to the storage area, so that the mobile phone shielding cabinet can realize the anti-recording function according to the model of common manufacturers ninety to the market in general noisy and extremely noisy conference scenes.

Furthermore, in order to improve the anti-recording reliability of the mobile phone shielding cabinet, the ultrasonic transmitter can be limited to transmit ultrasonic waves with the vibration frequency of 20-25kHZ and the decibel value of not less than 100 to the storage area, so that the mobile phone shielding cabinet can realize a reliable anti-recording function as far as possible aiming at various manufacturer models in the market in general noisy and extremely noisy conference scenes.

Example 1

As shown in fig. 1 to 54, the mobile phone shielding cabinet provided in this embodiment mainly includes a cabinet body 100, a cabinet door 200, a registering component 300, an anti-recording component 400, an indicating module 500, a signal shielding module 600 and a controller 700.

Referring to fig. 1 to 4, the cabinet body 100 has an accommodating cavity with a front opening, and the cabinet door 200 is used for closing the opening of the accommodating cavity, and is combined with the cabinet body 100 to form an electromagnetic shielding container. Specifically, the main bodies of the cabinet body 100 and the cabinet door 200 are made of electromagnetic shielding materials, and the electromagnetic shielding materials commonly used in the market are generally metal materials, such as seamless metal plates. A ring of sealing foam 150 made of electromagnetic shielding material is arranged between the edge of the accommodating cavity and the cabinet door 200, so that a reliable airtight electromagnetic shielding container is formed when the cabinet door 200 and the cabinet body 100 are covered. The cabinet 100 is preferably a rectangular metal shell, preferably sized as a conventional luggage case in the market, with a handle 120 at the top and support feet 130 at the four corners of the bottom. One side of the cabinet door 200 is preferably rotatably connected to the cabinet body 100 by a hinge structure 140, so that the accommodating cavity can be opened or closed in a rotatable manner.

The controller 700 is disposed in the accommodating cavity of the cabinet body 100, and is mainly used for controlling each electric control element in the mobile phone shielding cabinet. The controller 700 may be designed as a main control panel structure.

Referring to fig. 5-13, the register assembly 300 is disposed in the accommodating cavity, and the register assembly 300 includes a plurality of register units 310 that can be assembled in a longitudinally stacked form, and in this embodiment, includes 11 register units 310. The interior of the register assembly 300 forms a storage area for storing a mobile phone.

The registering unit 310 mainly includes a cassette holder 311, a cassette door, a drawer cassette, and a driving device.

In this embodiment, the bottom space of the box frame 311 of the upper-layer storage unit 310 and the top space of the box frame 311 of the lower-layer storage unit 310 together form a containing cavity with a front opening, and one containing cavity is the storage area.

A partition 3111 is provided at a center line of the cartridge holder 311 (i.e., a center line of the receiving chamber), and the partition 3111 divides the receiving chamber into a first chamber and a second chamber. A mounting hole 3112 is provided at a center line of the rear sidewall of the cassette holder 311. For the register units 310 assembled in a longitudinal stack, all of the mounting holes 3112 are located on the same longitudinal axis of the rear side wall of the register unit 310.

The drawer boxes comprise a first drawer box 312 and a second drawer box 313, the box doors comprise a first box door 314 and a second box door 315, and the drive means comprise a first drive means 316 and a second drive means 317. The first drawer box 312 is movably disposed in the first chamber, and the first driving device 316 is disposed on the box frame 311 and is used for driving the first drawer box 312 to enter and exit the first chamber. The first drawer box 312 is provided with a receiving position for placing the mobile phone, and when the first drawer box 312 extends out of the first chamber, a user can directly place the mobile phone at the receiving position. The front end of the first drawer box 312 is connected with the first box door 314 in a linkage manner, and when the first driving device 316 drives the first drawer box 312 to extend out of the first chamber, the first box door 314 is synchronously pushed open; when the first driving device 316 drives the first drawer box 312 into the first chamber, the first box door 314 is synchronously driven to close. Correspondingly, the second drawer 313 is movably disposed in the second chamber, and the second driving device 317 is disposed on the box frame 311 and is used for driving the second drawer 313 to enter and exit the first chamber. The second drawer 313 is provided with a receiving position for placing the mobile phone, and when the second drawer 313 extends out of the first chamber, a user can directly place the mobile phone at the receiving position. The front end of the second drawer 313 is connected with the second door 315 in a linkage manner, and when the second driving device 317 drives the second drawer 313 to extend out of the first chamber, the second door 315 is synchronously pushed open; when the second driving device 317 drives the second drawer 313 to enter the first chamber, the second door 315 is synchronously driven to close. In this embodiment, the first driving device 316 and the second driving device 317 are electrically connected to the controller 700, and the controller 700 controls the first driving device 316 and the second driving device 317, so that the first drawer box 312 and the second drawer box 313 can be independently controlled without a linkage relationship.

The register assembly 300 is further provided with fixing straight plates 319, which are attached to two side edges of the stacked register units 310, and form a fixed connection with the box frame 311 through structures such as screws, so as to fix the stacked register units 310.

Referring to fig. 5-14, the anti-recording assembly 400 is disposed within the receiving cavity. The anti-recording assembly 400 mainly includes an ultrasonic transmitter, a connection circuit board 420, a switch sensor (not shown in the figure), and a detecting member, and in this embodiment, the ultrasonic transmitter includes a first ultrasonic transmitting member 410.

The number of the first ultrasonic wave emitting elements 410 is identical to the number of the accommodating chambers (only including the accommodating chambers formed by the upper-layer accommodating unit 310 and the lower-layer accommodating unit 310), and a plurality of the first ultrasonic wave emitting elements 410 are mounted on the connection circuit board 420. The first ultrasonic wave transmitting members 410 are also aligned on the connection circuit board 420 corresponding to the mounting holes 3112 aligned on the same longitudinal axis, and the positions of the first ultrasonic wave transmitting members 410 are in one-to-one correspondence with the positions of the mounting holes 3112. When the connection circuit board 420 is attached to the rear side wall of the registering unit 310, each of the first ultrasonic wave emitting elements 410 extends into the corresponding accommodating cavity through the corresponding mounting hole 3112, so that each accommodating cavity is configured with one of the first ultrasonic wave emitting elements 410 to emit ultrasonic waves. The connection circuit board 420 is electrically connected to the controller 700, and the controller 700 controls the first ultrasonic emitter 410 to be turned on and off.

Referring to fig. 12-13, in order to make the ultrasonic waves emitted by the first ultrasonic emitter 410 cover the possible positions of all the mobile phones in the accommodating cavity as much as possible, the bottom wall of the partition 3111 is configured as a guide surface inclined downward from back to front, and the mounting hole 3112 is located below the guide surface, that is, the first ultrasonic emitter 410 is located below the guide surface. The surface of the guide surface is used as a reflecting surface, so that the diffusion range of ultrasonic waves can be wider. Referring to fig. 15, preferably, based on the fact that the included angle A1 of the ultrasonic wave emitted by the first ultrasonic wave emitting element 410 (for example, the included angle of the ultrasonic wave emitted by the first ultrasonic wave emitting element 410 used in this embodiment is 60 °) is constant, it is known through experimental tests that when the included angle A2 of the ultrasonic wave is controlled to be between 35 ° and 60 ° with respect to the surface of the guiding surface, the reflection and diffusion effects of the ultrasonic wave are best under the reflection of the reflecting surface (the surface of the guiding surface), so that all the positions where the mobile phones may be located in the accommodating cavity can be covered as much as possible.

The register assembly 300 may further be provided with a top plate 318, which covers the top of the uppermost register unit 310, so that a space is also formed in the uppermost register unit 310. The controller 700 is preferably disposed on the top plate 318.

When the top plate 318 is covered on the top of the uppermost-layer registering unit 310 to form a space in the uppermost-layer registering unit 310, two first ultrasonic transmitters 410 are additionally provided at the bottom of the controller 700 of the top plate 318 to correspond to the space in the uppermost layer.

When the first ultrasonic wave emitting member 410 is activated to emit ultrasonic waves having a db value not less than 75 without closing the cabinet door 200, a user standing near the shielding cabinet may suffer from discomfort in ears, and the user experience is poor. If the first ultrasonic wave emitting member 410 is also turned on when the mobile phone is not stored, waste of power is caused.

Therefore, the anti-sound recording module 400 of the present application further includes a detecting member (not shown) and a switch sensor (not shown) disposed on the cabinet 100 or the register module 300, and the switch sensor is electrically connected to the controller 700 for detecting the open/close state of the cabinet door 200. Specifically, the switch sensor may adopt a structure such as a photosensitive sensor or a hall sensor. The detecting member is electrically connected to the controller 700, and is configured to detect whether an article (mobile phone) is stored in the storage area. Specifically, the detecting member may be an infrared sensor or the like. The controller 700 is configured to: when it is detected that the storage area contains articles and the cabinet door 200 is in a closed state, controlling the first ultrasonic emitter 410 to be opened; when it is detected that no article exists in the storage area, the first ultrasonic wave emitting member 410 is controlled not to be turned on. That is, only if the "articles are stored in the storage area" and the "the cabinet door 200 is in the closed state" are satisfied at the same time, the controller 700 controls the first ultrasonic emitter 410 to be turned on, so that the comfort of the user and the saving of power are simultaneously ensured.

The indication module 500 may be used to display whether the mobile phone shielding cabinet is currently in a state of preventing the recording function from being opened. The indication module 500 may be an electronic component such as an electronic display screen or an indicator light, which can intuitively display a state. In this embodiment, the indication module 500 is disposed at the top of the register assembly 300, specifically may be disposed at the front end of the top plate 318, so that the indication module 500 faces the direction outside the cabinet, which is convenient for displaying indication information to the user, and is convenient for the user to observe.

When the mobile phone shielding cabinet works, the controller 700 and other electric control elements (functional devices) all need to use electricity. In an embodiment, the power components for supplying power to the controller 700 and other electronic control elements may be divided into two types, one type is a power component that may be built into the cabinet 100, such as a battery; the other type is an external power source, such as mains.

When the external power supply is used for supplying power, the wiring hole 110 is necessarily required to be arranged on the cabinet body 100 or the cabinet door 200, so that the airtight electromagnetic shielding container formed by combining the cabinet door 200 and the cabinet body 100 is provided with a hole, and electromagnetic signals can leak from the hole in a wireless mode and a power line carrier mode.

Therefore, in an embodiment, when the external power source is used for supplying power, the signal shielding module 600 is further disposed in the accommodating cavity.

Two signal shielding modules 600 suitable for the mobile phone shielding cabinet of the present embodiment are provided below.

Referring to fig. 3, 4 and 16-39, a first signal shielding module 600, the signal shielding module 600 basically includes a housing 610, a wire connection terminal 620 and a filter unit 630, and optionally includes a gasket 640. The signal shielding module 600 is installed at the wiring hole 110 of the shielding body (formed by covering the cabinet body 100 and the cabinet door 200).

The housing 610 is made of a conductive material, and the housing 610 includes a circuit housing 611, an outer cover 612, and a sleeve 613.

Referring to fig. 25-29, the circuit housing 611 includes a first housing portion and a second housing portion.

The first shell portion is provided with a first inner cavity 601 along an axial direction of the first shell portion, the first inner cavity 601 forms a plug hole at a first end of the first shell portion (i.e. a first end of the housing 610), and the connection terminal 620 is inserted into the first inner cavity 601. In the description of the present embodiment, a direction toward the connection terminal 620 is a first end of the structure, and a direction away from the connection terminal 620 is a second end of the structure. The two ends of the connection terminal 620 are a first input end 6201 and a first output end 6202, where the first input end 6201 is exposed in the plugging hole and is used for plugging an external electric wire (an external power wire), and the first output end 6202 is electrically connected with the filtering unit 630. The inner wall surface of the first inner cavity 601 may be provided with an internal thread for fitting with the connection terminal 620.

The second shell portion is provided with a first wire passing hole channel 602 which is communicated with the first inner cavity 601 along the axial direction of the second shell portion, the first wire passing hole channel 602 forms a first wire passing hole 6111 at the second end of the second shell portion, and a first electric wire 6203 (conductive wire) is arranged in the first wire passing hole channel 602 in a penetrating mode.

Referring to fig. 24, the outer cover 612 and the second end of the second shell portion together form a first receiving cavity 603, and the first wire through hole 602 communicates with the first receiving cavity 603 through the first wire through hole 6111.

The filtering unit 630 may include two feedthrough capacitors 632, where the feedthrough capacitors 632 are disposed on the second end of the outer cover 612, one end of the feedthrough capacitors 632 is electrically connected to the connection terminal 620, the other end of the feedthrough capacitors 632 is electrically connected to an internal wire of the functional device, and the feedthrough capacitors 632 are used for filtering common mode and differential mode signals of the internal wire and the external wire.

Further, in order to enhance the filtering effect on the common mode and differential mode signals of the inner wire and the outer wire, referring to fig. 22, the filtering unit 630 of the present embodiment includes a filtering capacitor 631 and two feedthrough capacitors 632, the filtering capacitor 631 is disposed in the first accommodating cavity 603, the feedthrough capacitor 632 is disposed at the second end of the outer cover 612 in a penetrating manner, and the filtering capacitor 631 and the feedthrough capacitors 632 are connected in parallel. One end of the feedthrough capacitor 632 is electrically connected to the connection terminal 620 through a first wire 6203 that is disposed in the first wire through hole 602, and the other end of the feedthrough capacitor 632 that passes out of the first housing cavity 603 is electrically connected to an inner wire (not shown) of the functional device. In this embodiment, the filtering unit 630 formed by connecting the filtering capacitor 631 and the feedthrough capacitor 632 in parallel has better filtering effect on common mode and differential mode signals of the internal wire and the external wire than the filtering unit 630 only including the feedthrough capacitor 632. A schematic diagram of the circuit connection relationship among the filtering unit 630, the connection terminal 620, and the functional device is shown in fig. 39.

Referring to fig. 22 and 24, the feedthrough capacitor 632 may be a feedthrough capacitor obtained directly from the market, and the structure of the feedthrough capacitor mainly includes a housing made of conductive material, a first external thread 6321 provided on the outer surface of the housing, a hole 6322 provided in the housing, and a second wire 6323 penetrating the hole 6322, wherein an insulating adhesive is filled between the second wire 6323 and the hole 6322. Referring to fig. 29-33, the outer cover 612 is provided with through holes 6121 corresponding to the number of the through capacitors 632, and the inner surface of the through holes 6121 is provided with first internal threads adapted to the first external threads, so that the through capacitors 632 are assembled on the outer cover 612 in a threaded connection manner, as shown in fig. 34 after the assembly is completed. The filter unit 630 needs to form conductive connection with the housing 610, and in the structure of this embodiment, the conductive connection between the filter unit 630 and the housing 610 is achieved by assembling the external threads of the housing of the feedthrough capacitor 632 with the feedthrough through hole 6121.

Referring to fig. 22 and 24, the first output terminal 6202 of the connection terminal 620 has two pins, each of which is connected to one of the first wires 6203. Wherein the length L1 of the first wire via 602 is greater than 3 times its aperture (i.e., the aperture D1 of the first wire via 6111), i.e., L1>3D1.

A waveguide can be seen as a high pass filter that has an attenuation effect for all frequencies below its cut-off frequency. The length of the cut-off waveguide is at least 3 times greater than the cross-sectional diameter or the maximum linear dimension of the cross-section. The cut-off waveguide is usually of both circular and rectangular cross-section, the lowest cut-off frequency fc of the metal tube being dependent only on the inner dimensions of the cross-section of the tube. Assuming that the inner diameter of the circular waveguide is d (cm) and the length is l (cm), the lowest cut-off frequency fc and the wavelength λs of the circular waveguide are fc=17.5/d (Ghz), and λs=1.71 d. It is known that the higher the highest cut-off frequency fc of the waveguide, the larger the range of electromagnetic signals that can be shielded, as the aperture of the waveguide is smaller. In this embodiment, the wire passing hole may be regarded as a circular waveguide, d is the aperture of the wire passing hole, and according to the above formula, the aperture of the wire passing hole should be as small as possible, and the wire passing hole should be as small as possible, so that the outer surface of the wire and the inner surface of the wire passing hole are in a bonding state during passing, and the highest cut-off frequency fc of the wire passing hole is improved.

According to a calculation formula of shielding effectiveness of the circular waveguide tube on electromagnetic signals in a shielding range: s=32l/d (dB), where d is the inner diameter of the circular waveguide and l is the length of the circular waveguide. It is known that the circular waveguide tube with the length equivalent to the diameter has 32dB attenuation, when the length of the circular waveguide tube is 3 times of the diameter, the attenuation can reach 96dB, electromagnetic leakage can be restrained, and shielding efficiency on electromagnetic signals in a certain frequency band can reach more than 90dB generally, so that shielding can be realized. In this embodiment, the wire passing hole may be regarded as a circular waveguide, and d is the aperture of the wire passing hole, i.e. the wire passing hole needs to reach a certain length to completely realize signal shielding.

When the lengths of the wire passing pore canals at the two ends of the storage cavity do not meet the length required by shielding, wireless signals can directly pass through the wire passing pore canals to enter and exit the storage cavity, so that the functions of the signal shielding module are invalid. When the wire passing pore channel near one side in the cabinet does not meet the shielding required length, wireless signals in the cabinet can enter the storage cavity through the wire pore channel and are converted into wired signals on the wire at one side of the storage cavity, and then the wired signals are transmitted out of the storage cavity, so that the shielding effect is reduced. When the wire passing hole channel far away from one side in the cabinet does not meet the shielding requirement, the wire signal on the filtering unit 630 is radiated, and the generated wireless signal passes through the wire hole channel and is transmitted out of the storage cavity, so that the shielding effect is reduced.

In this embodiment, the first wire through hole 602 and the hole 6322 of the feedthrough capacitor 632 are wire through holes located at two ends of the first accommodating cavity 603. The length L1 of the first wire-passing hole channel 602 is defined to be 3 times greater than the aperture (i.e., the aperture D1 of the first wire-passing hole 6111), i.e., L1>3D1, to satisfy the shielding requirement, thereby improving the shielding effect.

Referring to fig. 25-28, the second end of the second shell portion of the circuit shell 611 is provided with a first stop portion, which is preferably a collar portion 6113 protruding from the outer surface of the second shell portion.

Referring to fig. 35-38, the second end of the second shell portion of the circuit shell 611 is provided with a first stop portion, which is preferably a collar portion 6113 protruding from the outer surface of the second shell portion. Referring to fig. 35-37, the sleeve 613 is provided with a second limiting portion toward the first end of the circuit housing 611, and the sleeve 613 is provided with a sleeve hole 6132 penetrating through along the axial direction thereof, and the second limiting portion corresponds to a concave ring portion 6131 located inside the sleeve hole 6132. When the sleeve 613 is sleeved on the outer surface of the circuit shell 611, the convex ring portion 6113 is clamped at the concave ring portion 6131, so that the second end of the circuit shell 611 cannot be separated from the first end of the sleeve 613, but the sleeve 613 and the circuit shell 611 can rotate.

The outer cover 612 is assembled with the second end of the circuit housing 611 through the sleeve 613 such that there is no linkage between the outer cover 612 and the circuit housing 611, i.e., no relative rotation between the outer cover 612 and the circuit housing 611 occurs during assembly. According to the shell structure provided by the application, the outer cover 612 is assembled with the second end of the circuit shell 611 through the sleeve 613, and the sleeve 613 prevents relative rotation between the outer cover 612 and the circuit shell 611 during assembly, so that the first electric wire 6203 between the feedthrough capacitor 632 and the connecting terminal 620 during assembly can be prevented from being wound due to rotation.

Referring to fig. 30-33, the outer cap 612 is provided with a first connection portion 6122 toward the first end of the circuit housing 611, and the first connection portion 6122 is preferably externally threaded. Referring to fig. 18-20, a second end of the sleeve 613 is provided with a second connection portion 6133, and the second connection portion 6133 is correspondingly provided with internal threads, so that the sleeve 613 is assembled with the outer cover 612 through threaded connection and sleeved on the outer surface of the first end of the outer cover 612. Preferably, the outer surface of the second end of the outer cover 612 and the outer surface of the sleeve 613 are polygonal, so that the rotary assembly of the craftsman is facilitated.

Referring to fig. 3, 4 and 16-17, a schematic diagram of the signal shielding module 600 of the present embodiment is assembled to a shielding cabinet. The shielding cabinet comprises a cabinet body 100 and a cabinet door 200 which are mutually covered to form a shielding body.

The housing 610 is provided with a mounting connection portion for detachably fitting at the wiring hole 110 of the shield body, so that the housing 610 is electrically connected to the shield body, and the wiring terminal 620 is exposed at the wiring hole 110.

Specifically, a fitting tube 111 is provided on a side of the wiring hole 110 facing the inside of the shield body, and a first fitting portion, which is preferably an internal thread (not shown), is provided on an inner wall surface of the fitting tube 111. Correspondingly, the outer surface of the housing 610 is provided with a second assembling portion 6112 (mounting connection portion) detachably connected with the first assembling portion, and the second assembling portion 6112 is correspondingly provided with external threads, so that the housing 610 can be partially inserted into the assembling tube 111. In actual installation, the signal shielding module 600 can be conveniently installed at the wiring hole 110 by manual rotation, so that the operation is simple and the assembly and disassembly efficiency is high.

Referring to fig. 18 to 20, the gasket 640 is disposed between the end of the fitting tube 111 and the housing 610, and the gasket 640 has a certain elastic deformability to adjust the fitting gap between the fitting tube 111 and the housing 610.

The outer surface of the first shell portion of the circuit shell 611 is provided with the second assembly portion 6112 (external thread), the outer diameters of the first shell portion and the second assembly portion 6112 are smaller than the outer diameter of the second shell portion, so that a step 6114 is formed at the joint of the first shell portion and the second shell portion, and after the first shell portion is assembled with the assembly tube 111, the end portion of the assembly tube 111 abuts against the step 6114. When the gasket 640 is applied, the gasket 640 is sleeved on the first shell portion and is positioned between the end portion of the fitting tube 111 and the step 6114.

The assembly and installation process of the signal shielding module 600 is as follows:

in the first step, the feedthrough capacitor 632 is mounted on the outer cover 612 through a threaded connection, and then the feedthrough capacitor 632 and the filter capacitor 631 are welded to form a parallel conductive connection.

In the second step, one end of the first electric wire 6203 is welded to the first output end 6202 of the connection terminal 620, and then the connection terminal 620 is inserted into the first inner cavity 601 of the circuit shell 611 from one end of the insertion hole of the circuit shell 611, so that the first input end 6201 of the connection terminal 620 is clamped at the insertion hole, and the other end of the first electric wire 6203 passes through the first wire through hole channel 602 and out of the first wire through hole 6111.

In the third step, the other end of the first electric wire 6203 is connected to the feedthrough capacitor 632 in series by soldering.

Fourth, the sleeve 613 is sleeved from the first end of the circuit shell 611 and sleeved on the outer surface of the circuit shell 611, and the concave ring portion 6131 of the sleeve 613 is clamped with the convex ring portion 6113 of the circuit shell 611 to form a limit, so that the second end of the circuit shell 611 cannot be separated from the first end of the sleeve 613, but the sleeve 613 and the circuit shell 611 can rotate. The circuit housing 611 and the outer cover 612 are then kept from rotating relative to each other, and the sleeve 613 is rotated to form a threaded connection with the outer cover 612, completing assembly of the housing 610.

Fifth, the gasket 640 is inserted from the first end of the circuit housing 611 to be fitted over the outer surface of the first housing portion of the circuit housing 611. The housing 610 is then rotated to assemble the first end of the circuit housing 611 with the assembly tube 111, and the signal shielding module 600 is installed after tightening. After the installation, only the first input end 6201 of the connection terminal 620 is exposed in the connection hole 110 and is flush with the back surface of the cabinet body 100, and does not protrude out of the surface of the cabinet body 100, so as to allow a user to insert an external wire to supply power to the functional device.

In summary, the first signal shielding module 600 according to the present embodiment at least includes the following advantages:

first, the signal shielding module 600 of the present embodiment mainly includes a conductive housing 610, and a connection terminal 620 and a filtering unit 630 disposed therein, where the conductive housing 610 is electrically connected to the shielding body 10, and is used for isolating electromagnetic signals from penetrating the shielding body in a wireless manner; the filtering unit 630 is used for isolating electromagnetic signals from penetrating the shielding body in a mode of power line carrier, and the signal shielding module 600 of the application enables the shielding cabinet to simultaneously meet the power supply requirement of functional equipment in the shielding body and the overall signal shielding requirement.

Second, the signal shielding module 600 of this embodiment can realize detachable conductive connection with the shielding body through threaded connection, so that the signal shielding module 600 is convenient to install and detach, and the plug wire end is not protruded outwards, and the structural compactness and the aesthetic property of the shielding body are effectively improved.

Third, the signal shielding module 600 of this embodiment is provided with a smart housing structure, so that the conductive wires of the filtering unit 630 can be prevented from winding during assembly, and the shielding function is prevented from being affected.

Fourth, the signal shielding module 600 of the present embodiment is particularly suitable for a mobile phone shielding cabinet, and under the condition of meeting the requirements of circuit parameters of an application scenario of the mobile phone shielding cabinet, the filter unit 630 is designed in a minimized manner, and the housing 610 made of conductive material is matched with the signal shielding module 600 to realize a miniaturized and modularized design. Generally, the power allowed to pass through the signal shielding module 600 in this embodiment is about 50W, and the feedthrough capacitors with different specifications can be selected to adapt the signal shielding module 600 to larger power under the condition of ensuring that the volume of the signal shielding module 600 does not change greatly.

A second type of signal shielding module 600 is shown in fig. 40-54, the signal shielding module 600 basically comprises a housing 610, a wire connection terminal 620 and a filter unit 630, optionally with a connector terminal 650. The signal shielding module 600 is installed at the wiring hole 110 of the shielding body 10 for use.

Referring to fig. 41, the housing 610 includes a tubular body 611A, a first end 612A, and a second end 613A. The components of the housing 610 are all made of conductive materials, such as metals, which are common in the market.

Referring to fig. 44-45, the interior of the tube body 611A forms a receiving cavity, and the filter unit 630 is disposed in the receiving cavity. The first end of the tube body 611A is provided with a first through hole, and the inner surface of the first through hole is provided with a first assembly portion 6111A, and the first assembly portion 6111A is preferably an internal thread. The second end of the tube body 611A is provided with a second through hole, and the inner surface of the second through hole is provided with a second assembly portion 6112A, and the second assembly portion 6112A is preferably an internal thread. The tube body 611A may preferably be made as a metal cylindrical long tube, and the openings at both ends form the first through hole and the second through hole, respectively.

Referring to fig. 48, a first abutting portion 6121A that forms a sealing connection with the first assembling portion 6111A is provided on an outer surface of the second end of the first end 612A, and when the first assembling portion 6111A is an internal thread, the first abutting portion 6121A is correspondingly an external thread that is matched with the internal thread, so that the second end of the first end 612A and the first end of the pipe body 611A form a detachable sealing connection through a threaded structure. With respect to the above-described connection structure, it will be appreciated by those skilled in the art that the present application is not limited to a structure in which a removable sealing connection can be achieved only by a threaded structure, and that any structure capable of making a removable sealing connection between two components in the prior art is intended to be included in the scope of the present application.

The first end head 612A is penetratingly provided with a first cavity 6122A and a third wire passing duct 6123A which are communicated with each other along the axial direction of the pipe body 611A, and the third wire passing duct 6123A is communicated with the accommodating cavity through a third wire passing hole 6125A. The connection terminal 620 is inserted into the first cavity 6122A, and the connection terminal 620 has two pins, and each pin is connected to a third wire (not shown). The two third wires of the connection terminal 620 pass through the third wire passing hole 6123A to be electrically connected with the filtering unit 630, wherein the length L3 of the third wire passing hole 6123A is greater than 3 times of the aperture (i.e. the aperture D3 of the third wire passing hole 6125A), i.e. L3 > 3D3.

Referring to fig. 47, the filtering unit 630 is a third-order filtering circuit board, one end of which is electrically connected to the connection terminal 620, and the other end of which is electrically connected to an internal wire (not shown) of the functional device. The filtering unit 630 is configured to filter common mode and differential mode signals of the inner wire and the outer wire.

Specifically, the first end of the filtering unit 630 has a filtering input end, and the second end of the filtering unit 630 has a filtering output end. Referring to fig. 47, a first end of the filter unit 630 is provided with a conductive clip 631A for clamping a second end of the third wire duct 6123A, so that the third wire duct 6123A is electrically connected to the filter unit 630, that is, the filter unit 630 is electrically connected to the housing 610. The bottom of the conductive clip 631A is disposed on the filter unit 630 and forms conductive connection, and two arcuate plates forming a embracing structure are symmetrically disposed on the upper portion of the conductive clip 631A. The radian of the arc-shaped plate is adapted to the radian of the outer surface of the third wire passing duct 6123A, a gap between two arc-shaped plates is smaller than the outer diameter of the third wire passing duct 6123A, so that the third wire passing duct 6123A can be embedded between the arc-shaped plates from the gap, and the two arc-shaped plates clamp and hold the third wire passing duct 6123A tightly, so that the third wire passing duct 6123A forms stable conductive connection with the filtering unit 630 through the conductive clamping piece 631A. And, a limit part is further disposed on a side of the arc plate away from the third wire passing duct 6123A, so as to prevent the third wire passing duct 6123A from passing through the arc plate and contacting with other components of the filtering unit 630.

Referring to fig. 50-52, a second abutting portion 6131A that forms a sealing connection with the second assembling portion 6112A is provided on an outer surface of the first end of the second end 613A, and when the second assembling portion 6112A is an internal thread, the second abutting portion 6131A is correspondingly an external thread that is matched with the internal thread, so that the first end of the second end 613A and the second end of the pipe body 611A form a detachable sealing connection through a threaded structure. With respect to the above-described connection structure, it will be appreciated by those skilled in the art that the present application is not limited to a structure in which a removable sealing connection can be achieved only by a threaded structure, and that any structure capable of making a removable sealing connection between two components in the prior art is intended to be included in the scope of the present application.

A fourth wire passing channel 6132A is penetratingly arranged on the second end 613A along the axial direction of the pipe body 611A, and the fourth wire passing channel 6132A is communicated with the accommodating cavity through a fourth wire passing hole 6133A. An internal wire (not shown) of the functional device is electrically connected to the filtering output terminal of the filtering unit 630 through the fourth wire through hole 6132A. The length L2 of the fourth wire via 6132A is greater than 3 times the aperture (i.e., the aperture D2 of the fourth wire via 6133A), i.e., L2 > 3D2.

In this embodiment, the third wire passing hole 6123A and the fourth wire passing hole 6132A are wire passing holes located at two ends of the accommodating cavity. The present embodiment defines that the length L3 of the third wire via 6123A is greater than 3 times of the aperture thereof (i.e., the aperture D3 of the third wire via 6125A), i.e., L3 > 3D3, and defines that the length L2 of the fourth wire via 6132A is greater than 3 times of the aperture thereof (i.e., the aperture D2 of the fourth wire via 6133A), i.e., L2 > 3D2, to satisfy the shielding requirement length and improve the shielding effect.

Referring to fig. 40-43, which are schematic views of the assembly of the signal shielding module 600 of the present embodiment to the shielding body 10, the signal shielding module 600 is detachably assembled with the shielding body 10 mainly through the connector 650.

Referring to fig. 48-49, the connector tip 650 is provided with a fitting hole 651 therethrough, and the outer surface of the first end of the connector tip 650 is provided with a groove 653 for being snapped into the wiring hole 110 to form a fixed conductive connection with the shield 10. The inner surface of the second end of the socket head 650 is provided with a third assembling portion 652, and the outer surface of the first end 612A is provided with the third abutting portion 6124A which forms a detachable sealing connection with the third assembling portion 652. The third assembly portion 652 is preferably an internal thread, and the third mating portion 6124A is correspondingly an external thread adapted to the internal thread, such that the second end of the socket head 650 and the first end of the first head 612A are in a detachable sealed connection through a threaded structure. With respect to the above-described connection structure, it will be appreciated by those skilled in the art that the present application is not limited to a structure in which a removable sealing connection can be achieved only by a threaded structure, and that any structure capable of making a removable sealing connection between two components in the prior art is intended to be included in the scope of the present application.

In summary, the signal shielding module 600 provided in this embodiment at least includes the following advantages:

first, the signal shielding module 600 of the present embodiment mainly includes a conductive housing 610, and a connection terminal 620 and a filtering unit 630 disposed therein, where the conductive housing 610 is electrically connected to the shielding body 10, and is used for isolating electromagnetic signals from penetrating the shielding body 10 in a wireless manner; the filtering unit 630 is used for isolating electromagnetic signals from penetrating the shielding body 10 through the power line carrier, and the signal shielding module 600 of the present application enables the shielding cabinet to simultaneously meet the power supply requirement of the functional devices in the shielding body 10 and the overall signal shielding requirement.

Second, the signal shielding module 600 of this embodiment has set up ingenious shell structure and has realized dismantling conductive connection with the shield, makes signal shielding module 600 be convenient for install and dismantle, and the plug wire end is not evaginated, effectively improves shield compact structure nature and aesthetic property.

Third, the signal shielding module 600 of this embodiment is particularly suitable for a mobile phone shielding cabinet, and in the case of meeting the requirement of the circuit parameters of the application scenario of the mobile phone shielding cabinet, the filtering unit 630 of this embodiment selects a third-order filtering circuit board, the ground wire of the filtering unit 630 is electrically connected with the housing 610, and the power allowed to pass through by the filtering unit 630 is about 36W. The filtering unit 630 is configured to cut off electromagnetic signals that are carried on the power line and propagate through the power line into the shielding body 10, so as to solve the contradiction between the external power supply requirement and the signal shielding requirement of the shielding cabinet. The third-order filter circuit board adopted in this embodiment applies the low-pass filtering principle, designs circuit parameters pertinently based on the frequency band used for implementing electromagnetic communication in the actual application scene, implements comprehensive shielding of communication frequency band signals, minimizes the filtering unit 630, implements better shielding effect and wider shielding application range, and implements miniaturization and modularization of the signal shielding module 600.

Example 2

This embodiment differs from embodiment 1 in that: the ultrasonic transmitter of the present embodiment includes a first ultrasonic transmitter 410 and a second ultrasonic transmitter 430, the first ultrasonic transmitter 410 being provided in the same manner as in embodiment 1, and the second ultrasonic transmitter 430 being provided at the periphery of the storage area.

Referring to fig. 55, the present embodiment is provided with six of the second ultrasonic wave emitting members 430. Wherein two second ultrasonic wave emitting members 430 are mounted on one side of the connection circuit board 420 away from the cabinet door 200, one of the second ultrasonic wave emitting members 430 is located at a lower portion, and the other second ultrasonic wave emitting member 430 is located at a position close to the middle portion. Four other second ultrasonic wave emitting members 430 are positioned at the top of the register unit 300 and may be mounted on the controller 700. The four second ultrasonic wave emitting members 430 are installed in two layers, that is, two second ultrasonic wave emitting members 430 are installed at the bottom of the controller 700, two other second ultrasonic wave emitting members 430 are installed at the top of the controller 700, and the positions of the second ultrasonic wave emitting members 430 at the bottom and the top of the controller 700 are slightly staggered, as shown in fig. 55.

In example 1, "when the top plate 318 is covered on the top of the uppermost register unit 310 to form a single accommodation space in the uppermost register unit 310, two first ultrasonic transmitters 410 are added to the bottom of the controller 700 of the top plate 318 to correspond to the accommodation space of the uppermost layer". Here, the "two additional first ultrasonic wave emitting members 410" actually correspond to the two second ultrasonic wave emitting members 430 installed at the bottom of the controller 700 in the present embodiment.

In this embodiment, the rated power of the first ultrasonic emitter 410 and the rated power of the second ultrasonic emitter 430 may be the same or different.

In summary, embodiments 1 and 2 provide two ways of disposing ultrasonic transmitters, respectively.

In embodiment 1, only the first ultrasonic wave transmitting member 410 is needed to meet the requirement of the ultrasonic wave decibel value required for the storage area. Whereas in embodiment 2, the first ultrasonic wave emitting member 410 and the second ultrasonic wave emitting member 430 collectively satisfy the requirement of the ultrasonic wave decibel value required for the storage area. It can be understood that the db value of the ultrasonic wave emitted by the first ultrasonic wave emitting element 410 in embodiment 1 is greater than the db value of the ultrasonic wave emitted by the first ultrasonic wave emitting element 410 in embodiment 2, and the db value of the ultrasonic wave is related to the total input power of the ultrasonic wave emitting elements, so that it can be deduced that the minimum power of the single first ultrasonic wave emitting element 410 in embodiment 1 is greater than the minimum power of the single first ultrasonic wave emitting element 410 in embodiment 2, and the larger the power of the ultrasonic wave emitting element is, the larger the volume is according to the common knowledge.

In practical design, based on the main function of the mobile phone shielding cabinet, the storage area is mainly used for storing mobile phones, and the volume of the storage area is limited, so that the volume of an ultrasonic wave transmitting part which can be arranged in a matched manner is also limited. In addition, the ultrasonic wave decibel value of the ultrasonic wave transmitting part is too large, so that the influence on the human ear can be generated. That is, the volume of the storage area limits the volume of the ultrasonic wave emitting member to some extent, and the ultrasonic wave decibel value of the ultrasonic wave emitting member is limited to some extent based on the consideration of the comfort of the human body. Therefore, in embodiment 1 of the present application, the first ultrasonic wave emitting elements 410 are in one-to-one correspondence with the storage areas, so that the requirement of the required ultrasonic wave decibel value of the storage areas can still be met on the premise of minimizing the volume of the first ultrasonic wave emitting elements 410, and the overall structure is more compact and reasonable.

At present, due to the limitations of technology and precision, the actual power of the ultrasonic wave transmitting parts sold on the market is generally lower than the rated power of the ultrasonic wave transmitting parts, and the error between the actual power and the rated power can reach up to 15%. Thus, in example 1, when the rated power of the ultrasonic wave transmitting member theoretically can meet the requirement of the ultrasonic wave decibel value required for the storage region, it may not be actually satisfied. In order to solve the problems, the ultrasonic wave transmitting piece with rated power larger than preset power can be selected in actual production. For example, assuming that the preset power of the ultrasonic wave transmitting member capable of meeting the requirement of the ultrasonic wave decibel value required by the storage area is 10W, the ultrasonic wave transmitting member with the rated high power of 12W can be actually selected to compensate the power error problem of the ultrasonic wave transmitting member.

However, the ultrasonic transmitters currently sold in the market generally have only limited specifications, for example, only ultrasonic transmitters with rated power of 10W, 15W or 20W, and if ultrasonic transmitters with rated power of 12W are required, customization is required, and the cost of customization is very much higher than that of direct purchase.

At this time, the solution of embodiment 2 may be adopted, and the ultrasonic emission parts of the specifications sold in the market are additionally arranged at the periphery of the storage area, so that the problem of insufficient decibel value of the ultrasonic waves is compensated in a superposition manner, thereby reducing the production cost. For example, in embodiment 2, an ultrasonic wave emitting member with a rated power of 10W is selected as the first ultrasonic wave emitting member 410, a position where the ultrasonic wave decibel value requirement cannot be satisfied is determined by test data after the assembly is completed, and then an ultrasonic wave emitting member with a rated power of 10W is selected as the second ultrasonic wave emitting member 430, which is disposed around the position. Based on the structure of the register unit 300 of the present application, the applicant has found through a lot of test data and experiments that the second ultrasonic wave emitting member 430 is more required to be disposed at a position near the top and bottom.

In other embodiments of the present application, the register file 300 may be a less opaque structure, such as a steel wire rack. For the register assembly 300 with lower shielding property, the first ultrasonic wave transmitting member 410 may be directly disposed in the accommodating cavity, and transmit ultrasonic waves with a vibration frequency between 20 kHZ and 25kHZ and a decibel value not less than 75 to the register assembly 300, so as to interfere with mobile phone recording stored in the accommodating cavity, thereby realizing the function of preventing recording.

In other embodiments of the present application, the register assembly 300 may be a semi-enclosed structure, such as a cassette rack, which is formed with a plurality of wall panels to define the receiving cavity, which has an opening. For this semi-enclosed type of the registering component 300 with a higher shielding property, the number and the positions of the first ultrasonic wave emitting elements 410 are set to be in one-to-one correspondence with the accommodating cavities, so that each first ultrasonic wave emitting element 410 emits ultrasonic waves with the vibration frequency of 20-25kHZ and the decibel value of not less than 75 to a corresponding accommodating cavity through an opening, and the ultrasonic waves can cover the inside of the accommodating cavity, thereby interfering with the mobile phone recording stored in the accommodating cavity, and realizing the function of preventing recording.

In other embodiments of the present application, the register unit 300 may be a closed structure, such as the drawer frame of embodiment 1, which is formed by a plurality of wall plates to form the accommodating cavity, and the accommodating cavity has an openable door, and the accommodating cavity is a closed cavity when in use (for the structure described in embodiment 1, the accommodating cavity after the box door is closed is defined as a use state). For this kind of closed type, with very high structure shielding performance the register assembly 300, locate the first ultrasonic emitter 410 in the holding chamber, make the ultrasonic emitter directly in the holding chamber transmit the ultrasonic wave that the vibration frequency is between 20-25kHZ and decibel value is not less than 75 to disturb the mobile phone recording of depositing in the holding chamber, realize preventing the function of recording.

In other embodiments of the present application, the anti-recording assembly 400 may be provided with a switch sensor, without a detection member. That is, the switching of the ultrasonic transmitter is controlled only by the switching sensor. The controller 700 controls the first ultrasonic wave emitting member 410 to be opened as long as "the cabinet door 200 is in the closed state" is satisfied.

In other embodiments of the present application, the anti-recording assembly 400 is provided with a switch key (not shown) electrically connected to the controller 700 for controlling the on/off of the ultrasonic transmitter, that is, the user can manually switch on/off the ultrasonic transmitter by means of a key. The anti-recording assembly 400 may be provided with a switch key, without a detection member and a switch sensor, and the ultrasonic transmitter is manually turned on and off only by a user. Alternatively, the anti-recording assembly 400 may be provided with both a switch key and a detecting member, and the controller 700 may control the ultrasonic transmitter to be turned on only if the "articles stored in the storage area" and the "user manually turned on by the switch key" are satisfied at the same time. Or, the anti-recording assembly 400 may be provided with a switch key, a switch sensor and a detecting member at the same time, and the controller 700 may control the ultrasonic transmitter to be turned on only if the conditions of "articles stored in the storage area", "the cabinet door 200 is in a closed state", and "the user manually turns on by the switch key" are satisfied at the same time.

In other embodiments of the present application, the anti-recording assembly 400 further includes a mode selection key (not shown) for use with a switch sensor (not shown) for a rich function. The mode selection key is used for acquiring a mode signal, and selectable modes comprise an anti-recording mode and a common mode. In particular, the control keys may be provided in the form of buttons, swivel buttons or touch keys. The mode selection key is electrically connected to the controller 700, the controller 700 being configured to: when the anti-recording mode is selected and the cabinet door 200 is in a closed state, controlling the ultrasonic transmitter to be opened; when the normal mode is selected, the ultrasonic transmitter is controlled not to be opened regardless of whether the cabinet door 200 is in a closed or opened state.

In summary, compared with the prior art, the shielding cabinet provided by the application at least comprises the following beneficial effects:

firstly, the anti-recording component for interfering mobile phone recording through ultrasonic waves is arranged in the mobile phone shielding cabinet, so that the mobile phone shielding cabinet can prevent the mobile phone from being divulged through recording while shielding mobile phone signals, thereby enriching the shielding function of the mobile phone shielding cabinet and improving the confidentiality strength of the mobile phone shielding cabinet.

Second, the application can make the register assembly have the function of automatic independent opening and closing through reasonable design of the register assembly structure. Further, through the structural design to registering the subassembly holding chamber, make its ultrasonic wave transmitting part position cooperation with preventing recording the subassembly, improve the reflection diffusion effect of ultrasonic wave to can cover the position that all cell-phones in the holding intracavity probably are in, effectively improve the reliability of preventing recording the function.

Third, the application sets up to control opening and closing of the anti-recording assembly through the sensor for detecting the cabinet door switch, thus guarantee to open the anti-recording assembly again after the cabinet door is closed, avoid users near the shielding cabinet of mobile phone to hear the noise that the anti-recording assembly sends, improve the user's experience sense effectively.

Fourth, the present application provides a signal shielding module including a conductive housing, and a connection terminal and a filter unit provided therein. The conductive shell is in conductive connection with the shielding body and is used for isolating electromagnetic signals from penetrating the shielding body in a wireless mode; the filtering unit is used for isolating electromagnetic signals from penetrating through the shielding body in a power line carrier mode, so that the shielding cabinet can simultaneously meet the power supply requirement of power utilization devices in the cabinet and the overall signal shielding requirement.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present invention, and these modifications and substitutions should also be considered as being within the scope of the present invention.

Claims

1. A cell phone shielding cabinet, comprising:

characterized by further comprising:

the controller is electrically connected with the ultrasonic transmitter and used for controlling the on-off of the ultrasonic transmitter;

the register component is arranged in the accommodating cavity, and the storage area is formed in the register component;

the storage area is provided with at least two storage areas;

the ultrasonic transmitter comprises first ultrasonic transmitting pieces, wherein the first ultrasonic transmitting pieces are consistent in number and correspond to the storage areas in position one by one;

The storage area is a containing cavity, the first ultrasonic wave transmitting piece is arranged in the containing cavity, or each containing cavity is correspondingly provided with a mounting hole, and the first ultrasonic wave transmitting piece is arranged at the mounting hole and partially extends into the containing cavity;

the ultrasonic emitter further includes a second ultrasonic emitter disposed at a periphery of the storage area.

2. The cell phone shield cabinet according to claim 1, wherein:

the ultrasonic transmitter is used for transmitting ultrasonic waves with the vibration frequency of 20-25kHZ and the decibel value not less than 85 to the storage area.

3. The cell phone shield cabinet according to claim 1, wherein:

the ultrasonic transmitter is used for transmitting ultrasonic waves with the vibration frequency of 20-25kHZ and the decibel value not less than 100 to the storage area.

4. The cell phone shield cabinet according to claim 1, wherein:

the mounting holes are formed in the same side wall of the registering component;

the anti-recording assembly further comprises a connecting circuit board, and the first ultrasonic wave transmitting pieces are mounted on the connecting circuit board and correspond to the positions of the mounting holes one by one.

5. The cell phone shield cabinet according to claim 4, wherein:

the mounting holes are arranged on the same axis of the registering component.

6. The mobile phone shield cabinet according to claim 5, wherein:

the accommodating cavity comprises a first cavity and a second cavity;

the mounting hole is arranged on the boundary line of the first chamber and the second chamber.

7. The cell phone shield cabinet according to claim 6, wherein:

the inner top wall of the accommodating cavity is provided with a guide surface at the position of the dividing line, and the guide surface is used for diffusing the ultrasonic waves emitted by the first ultrasonic wave emitting piece to the first cavity and the second cavity.

8. The cell phone shield cabinet according to claim 7, wherein:

the mounting hole is arranged on the rear side wall of the accommodating cavity, and the guide surface is inclined downwards from back to front.

9. The cell phone shield cabinet according to claim 8, wherein:

the included angle between the surface of the guide surface and the ultrasonic wave emitted by the first ultrasonic wave emitting piece is 35-60 degrees.

10. A mobile phone shielding cabinet according to any one of claims 1-9, wherein:

the register assembly is formed by stacking at least two register units, and each register unit is formed into one accommodating cavity and one mounting hole.

11. A mobile phone shielding cabinet according to any one of claims 1-9, wherein:

the storage component is formed by longitudinally stacking at least two storage units, a containing cavity is formed by the bottom space of the storage unit positioned on the upper layer and the top space of the storage unit positioned on the lower layer, and the mounting hole is formed in the side wall of the storage unit positioned on the upper layer.

12. The cell phone shield cabinet according to claim 11, wherein:

the registering unit comprises a box frame and a box door;

13. The cell phone shield cabinet according to claim 12, wherein:

the registering unit also comprises a drawer box and a driving device;

the drawer box is movably arranged in the accommodating cavity, and the driving device is used for driving the drawer box to enter and exit the accommodating cavity;

the drawer box is connected with the box door in a linkage way, when the drawer box stretches out of the accommodating cavity, the box door is synchronously pushed open, and when the drawer box enters the accommodating cavity, the box door is synchronously driven to be closed.

14. The cell phone shield cabinet according to claim 1, wherein:

the anti-recording assembly further comprises a switch key, wherein the switch key is electrically connected with the controller and used for controlling the on-off of the ultrasonic transmitter.

15. The cell phone shield cabinet according to claim 1, wherein:

the anti-sound recording assembly further comprises a switch sensor, wherein the switch sensor is used for detecting the switch state of the cabinet door;

16. The cell phone shield cabinet according to claim 15, wherein:

the anti-recording assembly further comprises a mode selection key which is used for acquiring a mode signal, wherein the selectable modes comprise an anti-recording mode and a common mode;

when the normal mode is selected, the ultrasonic transmitter is controlled not to be turned on.

17. The cell phone shield cabinet according to claim 15, wherein:

The anti-recording assembly further comprises a detection piece, a storage area and a storage area, wherein the detection piece is used for detecting whether articles exist in the storage area or not;

18. The cell phone shield cabinet of claim 1, further comprising:

the signal shielding module is arranged in the accommodating cavity;

19. The cell phone shield cabinet of claim 18 wherein:

the inside of the shell is also provided with a storage cavity communicated with the first wire passage;

the filtering unit further comprises a filtering capacitor;

the filter capacitor is arranged in the storage cavity and is connected with the penetration capacitor in parallel.

20. The cell phone shield cabinet of claim 18 wherein:

the length of the first wire passage is more than 3 times of the aperture of the first wire passage.

21. The cell phone shield cabinet of claim 19 wherein:

the housing includes a circuit housing and an outer cover;

the circuit shell is provided with a first inner cavity and a first wire passing hole channel which are communicated with each other in a penetrating manner along the axial direction of the circuit shell, the wiring terminal is arranged in the first inner cavity, and the first wire passing hole channel forms a first wire passing hole at the second end of the circuit shell;

the outer cover and the second end of the circuit shell form the containing cavity.

22. The cell phone shield cabinet according to claim 21, wherein:

the housing further comprises a sleeve;

23. The cell phone shield cabinet of claim 1, further comprising:

the signal shielding module is arranged in the accommodating cavity;

24. The cell phone shield cabinet according to claim 23, wherein:

the length of the third wire passage is more than 3 times of the aperture of the third wire passage, and the length of the fourth wire passage is more than 3 times of the aperture of the fourth wire passage.

25. The cell phone shield cabinet according to claim 23, wherein:

The shell comprises a pipe body and a first end head;

26. The cell phone shield cabinet according to claim 23, wherein:

the shell comprises a pipe body and a second end head;

the accommodating cavity is formed in the pipe body, and a second through hole is formed in the second end of the pipe body;

the first end of the second end head and the second through hole form detachable sealing connection, and the fourth wire passage is penetratingly arranged on the second end head along the axial direction of the pipe body.