CN216122448U - Wireless signal shielding device for signal visualization - Google Patents
Wireless signal shielding device for signal visualization Download PDFInfo
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- CN216122448U CN216122448U CN202122997131.XU CN202122997131U CN216122448U CN 216122448 U CN216122448 U CN 216122448U CN 202122997131 U CN202122997131 U CN 202122997131U CN 216122448 U CN216122448 U CN 216122448U
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Abstract
The utility model relates to the technical field of shielding devices, in particular to a wireless signal shielding device for signal visualization, which comprises: a housing provided with a cavity for accommodating an electronic device; the circuit board is fixed inside the shell and is provided with a power interface and a control circuit; and the shielding signal generating modules are connected to the circuit board and driven by the circuit board to transmit shielding signals with corresponding frequencies. According to the utility model, the LED lamp beads are connected in series on the transmitting coils of each antenna, the impedance in the loop is unchanged and the current is a constant value under the normal working state of the transmitting antenna, so that the LED lamp beads generate stable light, and if the antenna and the shielding signal transmitting module or the shielding signal transmitting module and the circuit board are connected or disconnected due to installation, the LED lamp beads flicker or do not lighten, so that the working state of each antenna can be visually observed to ensure that the shielding device can complete signal shielding of target frequency.
Description
Technical Field
The utility model relates to the technical field of shielding devices, in particular to a wireless signal shielding device for signal visualization.
Background
At present, the signal shielding device is widely applied to places such as examination rooms, prisons, detention houses and the like, can effectively prevent personnel from using mobile phones in a violation mode, guarantees fair and fair examination and maintains the order safety of prisons. The shielding device comprises an antenna internal part and an antenna external part, wherein the power and frequency range of the internal part is small relative to the external part, but the use is relatively convenient.
The external antenna shielding device needs to be connected in a correct mode, the frequency of the antenna and the frequency on the machine body need to be correspondingly screwed, and due to the fact that the high-power shielding device is large in heat productivity, signal transmission interruption is easily caused between the wireless shielding signal transmitting module and the circuit board due to contact cold welding.
Therefore, although the antenna is installed and adjusted to the corresponding frequency, it may not actually serve as a signal shield and is not easily perceived, so that the signal coverage of the shield is not sufficient and the shielding requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects and shortcomings of the shielding device in the prior art, the utility model aims to visually observe the power-on state of the antenna through the LED lamp bead connected to the transmitting coil so as to judge whether each antenna is in a normal transmitting state.
The utility model aims to provide a wireless signal shielding device for signal visualization, which comprises:
a housing provided with a cavity for accommodating an electronic device;
the circuit board is fixed inside the shell and is provided with a power interface and a control circuit;
the shielding signal generating modules are connected to the circuit board and driven by the circuit board to emit shielding signals with corresponding frequencies, and the shielding signal generating modules are provided with signal output connectors;
the frequency modulation knobs with the number corresponding to the shielding signal generation modules are arranged outside the shell, are electrically connected to the circuit board and are used for controlling the corresponding shielding signal generation modules to transmit wireless shielding signals with corresponding frequencies;
each antenna is electrically coupled to the corresponding signal output joint of the shielding signal generation module respectively, and shielding signal transmission is realized through the antennas;
the antenna comprises a shell, a connector, a wire and a transmitting coil, wherein the connector, the wire and the transmitting coil are arranged in the shell, the connector is electrically connected with the signal output connector, the wire supplies power to the transmitting coil, a first LED lamp is connected in series on the wire, and a light-transmitting groove capable of exposing LED light is arranged at the position, corresponding to the first LED lamp, of the shell.
Preferably, the LED lamp comprises a single-color LED lamp bead.
Preferably, the light-transmitting groove is annular, a transparent light-guiding ring is arranged in the light-transmitting groove, and the shell is fixedly connected with the transparent light-guiding ring.
Preferably, the upper end of the light guide ring is provided with threads, the shell comprises an upper shell and a lower shell, the lower shell is fixedly bonded with the light guide ring, and the upper shell is in threaded connection with the light guide ring.
Preferably, the frequency modulation knob is connected with a second LED lamp in series, and the second LED lamp is embedded on the surface of the shell.
Preferably, the connector comprises a conductive pin and a grounding ring, the conducting wire is connected with the conductive pin through a copper column, and the transmitting coil is connected with the conducting wire through a metal column.
Preferably, the antenna comprises a whip antenna.
Compared with the prior art, the utility model has the advantages that:
according to the utility model, the LED lamp beads are connected in series on the transmitting coils of each antenna, the impedance in the loop is unchanged and the current is a constant value under the normal working state of the transmitting antenna, so that the LED lamp beads generate stable light, and if the antenna and the shielding signal transmitting module or the shielding signal transmitting module and the circuit board are connected or disconnected due to installation, the LED lamp beads flicker or do not lighten, so that the working state of each antenna can be visually observed to ensure that the shielding device can complete signal shielding of target frequency.
Drawings
The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a wireless signal shield for signal visualization according to the present invention;
fig. 2-3 are schematic structural views of the antenna shown in the present invention.
Detailed Description
In order to better understand the technical content of the present invention, specific embodiments are described below with reference to the accompanying drawings.
Referring to fig. 1, the utility model provides a signal visualization wireless signal shielding device, which mainly comprises a housing 1, a circuit board 2, a plurality of shielding signal generating modules 3, a frequency modulation knob 5 and an antenna 4.
Optionally, the housing 1 includes two casing bodies that can be spliced, and the casing bodies are folded and fixed by bolts or other connectors, so that a cavity for accommodating electronic devices is formed in the housing 1. The shell 1 is reserved with a plurality of holes at the top for exposing the signal output connector 31 of the shielding signal generation module 3 and exposing the frequency modulation knob 5, and the side wall of the shell 1 is also provided with a heat radiation window to ensure that the heat radiation of the shielding device is good.
The housing 1 is made of hard plastic having good insulation.
The circuit board 2 (i.e., PCB control main board) is fixed inside the housing 1, and is provided with a power interface and a control circuit. The power interface is plugged into a socket through a lead and a power adapter to supply power to the circuit board 2, and the control circuit is used for supplying power to each shielding signal generation module 3.
The shielding signal generating modules 3 correspond to different shielding frequency bands, are respectively connected to the circuit board 2, and are driven by the circuit board 2 to emit shielding signals with corresponding frequencies. In an alternative embodiment, the shielding signal generating module 3 correspondingly emits a plurality of shielding signals of different frequency bands, for example, shielding signals of different GSM frequency bands, CDMA frequency bands, DCS frequency bands, and 3G/4GLTE 1/4GLTE2/5G frequency bands.
Furthermore, a heat dissipation plate is arranged on one side of the circuit board 2 and correspondingly arranged on the inner side of the heat dissipation window so as to improve the heat dissipation capacity of the internal electronic device.
Furthermore, each shielding signal generation module 3 is correspondingly provided with a frequency modulation knob 5, and the frequency modulation knob 5 is arranged outside the shell 1 and electrically connected to the circuit board 2 for controlling the corresponding shielding signal generation module 3 to transmit the wireless shielding signal with the corresponding frequency.
As shown in fig. 1 to 3, each antenna 4 is electrically coupled to the signal output connector 31 of the corresponding shielding signal generating module 3, so as to implement shielding signal transmission via the antenna 4. In an alternative embodiment, the antenna 4 comprises a housing and a connector 42, a wire 41 and a transmitting coil 43 arranged within the housing, the connector 42 being electrically connected to the signal output connector 31, the transmitting coil 43 being powered through the wire 41.
Optionally, the antenna 4 comprises a whip antenna.
Specifically, the signal output terminal 31 and the connector 42 of the antenna 4 are physically and electrically connected. The signal output terminal 31 includes a metal ring with an external thread to form a ground terminal, and a convex metal sleeve is provided in the middle to form a signal terminal.
The connector comprises a conductive pin and a grounding ring, the conductive pin is connected with the lead wire 41 through a copper column 432, and the transmitting coil 43 is connected with the lead wire 41 through a metal column 431. The grounding ring is provided with an internal thread, the conductive pin forms a signal end, and the connector 42 is screwed to the signal output connector 31 to electrically connect the signal output connector 31 and the connector 42.
As shown in fig. 3, after the signal output connector 31 is connected to the connector 42, the antenna 4 emits a shielding signal through the internal transmitting coil 43, and since the transmitting coil 43 and the shielding signal generating module 3 are connected through the signal output connector 31, a poor contact may occur at the connection, and the operating state of the antenna 4 is unknown after installation, therefore, the first LED lamp 6 is connected in series to the wire 41. In this way, when the transmitting coil 43 is in a normal operating state, the current in the wire 41 is stable, and when a poor contact or power failure occurs, the first LED lamp 6 may flicker or turn off, thereby reflecting the operating state of the transmitting coil 43.
Optionally, a light-transmitting groove capable of exposing the light of the LED lamp is formed in a position of the housing corresponding to the first LED lamp 6. The LED lamp comprises a monochromatic light-emitting diode lamp bead. It has small volume, low working voltage and current, can be driven by various AC/DC pulse power supplies, and has long service life.
In a preferred embodiment, the light-transmitting groove is annular, a transparent light-guiding ring 61 is arranged in the light-transmitting groove, and the shell is fixedly connected with the transparent light-guiding ring 61.
In an alternative embodiment, the upper end of the light guide ring 61 is provided with a thread, the housing includes an upper housing and a lower housing, the lower housing is fixedly bonded to the light guide ring 61, and the upper housing is in threaded connection with the light guide ring 61. Thus, the upper housing can be easily detached to mount the electronic component inside.
Furthermore, a second LED lamp 51 is connected in series to the frequency modulation knob 5, and the second LED lamp 51 is embedded in the surface of the housing 1. And is used for reflecting the state of the driving circuit of the shielding signal generation module 3 to judge whether the working state of the antenna 4 is abnormal due to the circuit reason or the connection reason.
By combining the above embodiments, the LED lamp beads are connected in series to the transmitting coils of each antenna, and when the transmitting antenna is in a normal working state, the impedance in the loop is not changed, and the current is a constant value, so that the LED lamp beads generate stable light.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the present invention should be determined by the appended claims.
Claims (8)
1. A wireless signal masker for signal visualization, comprising:
a housing provided with a cavity for accommodating an electronic device;
the circuit board is fixed inside the shell and is provided with a power interface and a control circuit;
the shielding signal generating modules are connected to the circuit board and driven by the circuit board to emit shielding signals with corresponding frequencies, and the shielding signal generating modules are provided with signal output connectors;
the frequency modulation knobs with the number corresponding to the shielding signal generation modules are arranged outside the shell, are electrically connected to the circuit board and are used for controlling the corresponding shielding signal generation modules to transmit wireless shielding signals with corresponding frequencies;
each antenna is electrically coupled to the corresponding signal output joint of the shielding signal generation module respectively, and shielding signal transmission is realized through the antennas;
the antenna comprises a shell, a connector, a wire and a transmitting coil, wherein the connector, the wire and the transmitting coil are arranged in the shell, the connector is electrically connected with the signal output connector, the wire supplies power to the transmitting coil, a first LED lamp is connected in series on the wire, and a light-transmitting groove capable of exposing LED light is arranged at the position, corresponding to the first LED lamp, of the shell.
2. The signal-visualized wireless signal shield according to claim 1, wherein the LED lamp comprises a single color LED lamp bead.
3. The signal-visualizing wireless signal shield of claim 1, wherein the light-transmissive groove is annular.
4. The signal visualization wireless signal shield of claim 1, wherein a transparent light guide ring is installed in the light transmission groove, and the housing is fixedly connected with the transparent light guide ring.
5. The signal visualization wireless signal shield as recited in claim 4, wherein the upper end of the light guide ring is provided with a thread, the housing comprises an upper housing and a lower housing, the lower housing is fixedly bonded to the light guide ring, and the upper housing is in threaded connection with the light guide ring.
6. The signal-visualized wireless signal shield according to claim 1, wherein a second LED lamp is connected in series to the frequency modulation knob, and the second LED lamp is embedded in the surface of the housing.
7. The signal visualization wireless signal shield of claim 1, wherein the connector comprises a conductive pin and a grounding ring, the conductive wire is connected to the conductive pin through a copper pillar, and the transmitting coil is connected to the conductive wire through a metal pillar.
8. The signal-visualizing wireless signal shield of claim 1, wherein the antenna is a whip antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122997131.XU CN216122448U (en) | 2021-12-02 | 2021-12-02 | Wireless signal shielding device for signal visualization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122997131.XU CN216122448U (en) | 2021-12-02 | 2021-12-02 | Wireless signal shielding device for signal visualization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216122448U true CN216122448U (en) | 2022-03-22 |
Family
ID=80719119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122997131.XU Active CN216122448U (en) | 2021-12-02 | 2021-12-02 | Wireless signal shielding device for signal visualization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216122448U (en) |
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2021
- 2021-12-02 CN CN202122997131.XU patent/CN216122448U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230506 Address after: Floor 3-4, Building 37, Liandong U-Valley, No. 1001 Fuying Road, Nanjing, Jiangsu Province, 211100 (Jiangning High tech Park) Patentee after: Nanjing Jiama Security Technology Co.,Ltd. Address before: 211000 No. 1, Fangyuan Middle Road, Jiangning Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING BOKANG ELECTROMECHANICAL TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |