CN220210453U - Expandable signal shielding device - Google Patents

Abstract

The utility model relates to the technical field of signal shielding, in particular to a scalable signal shielding device, which comprises a base and at least one shielding device unit, wherein the shielding device unit is detachably connected to the base, and the base is configured to supply power to the shielding device unit mounted on the base; the shield unit comprises a connecting seat, a middle seat, a plurality of antenna units and a shell along the upward direction of the base. The utility model sets the shielding device into a mode of a base and shielding device units, wherein the shielding device units can be independently arranged on the base, the base provides power supply, each shielding device unit is provided with a certain number of antenna units and can emit shielding signals in a target frequency band, if the target frequency band is newly increased, one or more shielding device units can be continuously expanded on the basis of the original shielding device units as required so as to cover the newly increased target wave bands needing shielding.

Description

Expandable signal shielding device

Technical Field

The utility model relates to the technical field of signal shielding, in particular to a scalable signal shielding device.

Background

The signal shielding device is used for shielding wireless signals transmitted by various transmitters, such as Wifi signals, cellular network signals (frequency bands of GPRS, 4G, 5G and the like), bluetooth wireless signals and the like, electromagnetic wave signals transmitted by the shielding device are utilized to interfere signals transmitted from a base station/a transmitting source, so that the signal shielding effect is achieved, in general, the mobile phone signal shielding device can limit the range of 500M meters of a self-interference transmitting station, the radius of mobile phone signals is more than 20 meters, and the shielding coverage frequency band, the amplitude and the radius are all adjustable.

The signal shielding device mainly adopts fixed site installation (wall-mounted or floor-mounted), vehicle-mounted or knapsack design to scan from the low-end frequency to the high-end of a forward channel at a certain speed aiming at places such as various examination rooms, schools and gas stations where mobile phones are forbidden. The scanning speed can form disorder code interference in a message signal received by the mobile phone, and the mobile phone cannot detect normal data sent from the base station, so that the mobile phone cannot establish connection with the base station, and the phenomena of no signal, no service system and the like are presented.

The power of the current shielding device is generally 12W to 480W, and the high-power signal shielding device adopted for a special area is required to have a large coverage area, and overlapping areas are arranged between the mutually covered areas so as to avoid the generation of shielding gaps.

It can be seen that, with the development of communications, the frequency bands of signals are more and more, when people want to shield signals in all frequency bands, the more antennas are needed, the more antennas in the existing shielding device are usually arranged in a manner of a heat dissipation plate, and the fan ventilation is arranged at the bottom, however, when the number of the antennas is increased by expanding the antennas again, the size of the shielding device is increased, which is obviously disadvantageous to both a manufacturing end and a user end.

Disclosure of Invention

According to a first aspect of the object of the present utility model, there is provided a expandable signal shield comprising a base and at least one shield unit, the shield unit being detachably connected to the base, the base being configured to supply power to the shield unit mounted to the base;

the shielding device comprises a base, a shielding device unit and a shielding device unit, wherein the shielding device unit comprises a connecting seat, a middle seat, a plurality of antenna units and a shell, and each antenna unit is used for generating a shielding signal of a target frequency band;

a fan is arranged on the connecting seat;

the middle seat is fixed to the connecting seat;

a plurality of the antenna units are mounted to the center base;

the shell at least covers the outer side of the antenna unit, and a radiating window is arranged on the shell;

the base is provided with an air inlet, a plurality of antenna units are distributed in a circumferential array, a ventilation channel is formed in the inner side of the base, and the fan is used for blowing air into the ventilation channel, so that air flow entering from the air inlet flows through the antenna units around the ventilation channel and flows out of the heat dissipation window.

Preferably, a voltage transformation module is arranged in the base, and the base is also provided with an electricity taking socket for connecting with the mains supply and a power supply socket for supplying power to the shielding device unit, and the voltage transformation module is configured to transform the mains supply into the voltage grade required by the Cheng Bingbi unit.

Preferably, the connection base is provided with an electrical connector, the electrical connector is configured to connect with the power supply socket at a first end, and electrically connect with the fan and the antenna unit at a second end.

Preferably, the middle seat is configured into a hollow column shape, the outer wall of the middle seat is provided with a plurality of positioning columns, the inner sides of every two positioning columns form mounting holes for mounting antenna units, the plurality of mounting holes are distributed in a circumferential array, the inner side of the middle seat is provided with radiating fins, and ventilation channels are formed on the inner side of the middle seat and around the radiating fins.

Preferably, the heat dissipation fins are arranged at positions corresponding to the mounting holes.

Preferably, a plurality of expansion positions for installing the shielding device unit are arranged on the base, and the expansion positions are linearly distributed.

Preferably, the housing is configured in a rectangular column shape including a first side and a second side parallel to a length direction of the base, and a third side and a fourth side perpendicular to the length direction of the base.

Preferably, the third side and/or the fourth side of the housing is provided with a first heat dissipation window.

Preferably, the first side surface and the second side surface of the shell are provided with inwards concave grooves, the grooves extend to the third side surface and/or the fourth side surface, and the grooves are provided with second radiating windows.

Preferably, the first side and the second side of the housing are provided with connecting parts, and after the shielding units are installed on the two adjacent expansion positions, the connecting parts on the housings at the adjacent positions are connected with each other.

Preferably, the connection member includes a first connection structure provided to the first side and a second connection structure provided to the second side, the second connection structure being fitted to the first connection structure, the first connection structure and the second connection structure being fixed to each other in a direction parallel to a length of the base.

Preferably, the first connection structure and the second connection structure are configured as hook structures, so that the first connection structure and the second connection structure can be mutually clamped.

Compared with the prior art, the utility model has the advantages that:

according to the utility model, the shielding devices are arranged in a mode of a base and shielding device units, the shielding device units can be independently arranged on the base, the base provides power supply, each shielding device unit is provided with a certain number of antenna units and can emit shielding signals in a target frequency band, if the target frequency band is newly increased, one or more shielding device units can be continuously expanded on the basis of the original shielding device units as required so as to cover the newly increased target wave bands needing shielding;

compared with the linear arrangement mode in the prior art, the antenna units in each shielding unit are distributed in a circumferential array, and the shielding unit has advantages in the aspects of compactness and heat dissipation efficiency, so that when each shielding unit is spliced to form a shielding unit as an expandable independent unit, the size of the shielding unit is smaller than that of the existing shielding unit.

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 utility model will now be described, by way of example, with reference to the accompanying drawings.

Fig. 1 is a schematic diagram of a scalable signal shield according to the present utility model.

Fig. 2 is a schematic view of the housing connection structure of the present utility model.

Fig. 3 is a schematic view of the shield unit of the present utility model with the housing removed.

Fig. 4 is a schematic diagram showing the distribution of antenna elements on a mid-seat according to the present utility model.

Fig. 5 is a schematic view of the structure of the middle seat according to the present utility model.

Fig. 6 is a schematic view of a fan according to the present utility model.

Fig. 7 is a schematic diagram of the expandable signal mask of the present utility model expanded into three mask units.

Fig. 8 is a schematic view of a power supply socket in a base of the present utility model.

Fig. 9 is a volume comparison of the expandable signal shield of the present utility model with a prior art shield.

Detailed Description

For a better understanding of the technical content of the present utility model, specific examples are set forth below, along with the accompanying drawings.

The frequency range of the required shielding signals is larger and larger, the number of the required antennas is increased, the shielding devices of the 6-12 antennas which are commonly used in the prior art cannot meet the use requirement gradually, and the frequency range and the power of the signals which need to be shielded are not fixed in the face of different places, so that the number of the antennas which are typically arranged in a column mode and a single cooling plate in the market are expanded again, the number of the antennas can only be increased obviously, the length or the thickness is also not convenient to adapt to the proper number of cooling fans, and the requirements of users cannot be met obviously.

As shown in connection with fig. 1 and 7, the present utility model proposes a scalable signal shield comprising a base 10 and at least one shield unit detachably connected to the base 10, the base 10 being configured to supply power to the shield unit mounted to the base 10.

Base seat

Wherein the base 10 is intended to provide physical support, power supply and communication to the shield unit.

Optionally, a corresponding plug is provided on the base 10, and when the shield unit is mounted on the base 10, the shield unit can be docked with the plug to realize electrical connection.

In a specific embodiment, a transformation module is arranged in the base 10, and a power supply socket 11 for connecting with a power supply socket of the mains supply and supplying power to the shielding device unit is further arranged on the base, and the transformation module is configured to transform the mains supply into a voltage level required by the Cheng Bingbi device unit.

Preferably, the power supply socket 11 is also integrally provided with a communication socket, and a network cable can be connected to the base 10 to remotely control the states of the antenna units of the shielding unit.

Further, the base 10 is provided with a plurality of expansion positions, for example, 2-4 expansion positions, for installing the shielding units, and each expansion position is provided with one shielding unit.

Optionally, the plurality of expansion bits are shown as being linearly distributed. Thus, the hanging of the shielding device is facilitated.

In other embodiments, the expansion bits may be arranged in a rectangular array distribution, a circular array distribution, a honeycomb distribution, or the like when there are a sufficient number of antennas required.

Shield unit

The shielding unit is intended to enable the generation of shielding signals while separately meeting heat dissipation requirements.

As shown in fig. 3-4 and 8, the shield unit includes a connection base 30, a middle base 40, a plurality of antenna units 50, and a housing 20 in an upward direction of the base 10, wherein each antenna unit 50 is configured to generate a shield signal of a target frequency band.

The middle mount 40 is fixed to the connection mount 30, and a plurality of antenna units 50 are mounted to the middle mount 40; the fan 32 is arranged on the connecting seat 30, the middle seat 40 is covered on the connecting seat 30, the connecting seat 30 is in butt joint with the base 10, and the fan 32 and the antenna unit 50 are powered by the base 10.

In an alternative embodiment, the connection socket 30 is provided with an electrical connector 33, the electrical connector 33 being configured to be connected at a first end to the power supply socket 11 and at a second end to the fan 32, the antenna unit 50.

Optionally, the electrical connector 33 is fixed to the connector housing 31, and the connector housing 31 is injection molded from a plastic material.

Specifically, the antenna unit 50 includes a signal transmitting module 51 and an antenna 52, and when the signal transmitting module 51 is powered, a shielding signal with a predetermined frequency band is generated and transmitted by the antenna 52.

In a specific embodiment, 6 antenna units 50,6 are installed on one middle seat 40, the antenna units 50 are distributed in a circumferential array, the inner side forms a ventilation channel 421, the heat generated by the antenna units 50 arranged in this way is relatively concentrated, the fan 32 is arranged on the connecting seat 30, and the blowing range of the fan covers the 6 antenna units 50, so that the heat generated by the antenna units 50 can be taken away.

Preferably, the 6 antenna elements 50 are distributed in a circumferential array about the axis of the fan 32.

In other embodiments, the number of antenna elements 50 may be selected to be 4-8.

In a specific embodiment, as shown in fig. 5-6, the middle seat 40 is configured as a hollow column, the outer wall of the middle seat 40 is provided with a plurality of positioning columns 41, the inner sides of every two positioning columns 41 form mounting holes 411 for mounting the antenna unit 50, the plurality of mounting holes 411 are distributed in a circumferential array, the inner side of the middle seat 40 is provided with radiating fins 42, and ventilation channels 421 are formed on the inner side of the middle seat 40 and around the radiating fins 42.

Wherein the signal emitting module 51 can be mounted in the mounting pocket 411 in close proximity to the middle mount 40, preferably the middle mount 40 is made of aluminum with good thermal conductivity.

Preferably, the heat radiation fins 42 are disposed corresponding to the positions of the mounting pockets 411.

In this way, the signal emitting module 51 emits heat to the heat dissipating fins 42, and all of the six heat dissipating fins 42 are located in the air flow channel generated by the fan 32, and the air flow generated by the fan flows through the heat dissipating fins 42 to carry out heat.

Specifically, one end of the electrical connector 33 is a metal pin, and the other end is a metal socket, where the plurality of antenna units 50 are pre-connected to the metal socket, and as shown in fig. 5, a limiting post 43 is disposed on the outer side of the mounting hole 411 to limit the position of the signal emitting module 51, and meanwhile, a screw hole is further disposed on the limiting post 43, and a power supply circuit board may be disposed between the two limiting posts 43 to control the power and the switch of each signal emitting module 51 in the shielding unit.

Preferably, the circuit board is pre-connected to the metal socket of the electrical connector 33, and the fan 32 is pre-connected to the metal socket of the electrical connector 33.

Further, the casing 20 at least covers the outer side of the antenna unit 50 to protect the antenna unit 50, and a heat dissipation window is provided on the casing 20; wherein, the base 10 is provided with an air inlet, and the fan 32 is used for blowing air into the ventilation channel 421, so that the air flow entering from the air inlet flows through the antenna units 50 around the ventilation channel and flows out of the heat dissipation window.

By combining the above embodiments, the shielding device unit integrates the heat dissipation structure and the shielding signal emission structure, and the shielding device unit is more compact and independent under the condition of meeting the heat dissipation requirement, so that a foundation is laid for expansion of the shielding device.

Outer casing

In a preferred embodiment, as shown in connection with fig. 1-2 and 7, the plurality of expansion sites are linearly distributed, so that, for space saving, the housing 20 is constructed in a rectangular column shape, the housing 20 includes a first side and a second side parallel to the length direction of the base 10, and a third side and a fourth side perpendicular to the length direction of the base 10.

Thus, when more than two shield units are installed in the expanded position, the first side and the second side of the housing 20 are attached, and the volume of the whole shield can be reduced.

Wherein the third side and/or the fourth side of the housing 20 is provided with a first heat dissipating window 23.

Preferably, the third side or the fourth side of the housing 20 is provided with a first heat dissipating window 23, and the other side is a flat plate, preferably, one side of the flat plate faces outwards, and the first heat dissipating window 23 is close to a wall. In this way, dust ingress into the housing may be reduced.

Optionally, the first heat dissipating window 23 is a louver, which is located outside the antenna unit 50, and the first side of the antenna unit 50 is a ventilation channel 421, and the second side is a louver, so that when the airflow flows from the ventilation channel 421 to the outside of the louver, the airflow must flow over the surface of the antenna unit 50, and the heat is carried out of the housing 20.

Preferably, the first and second sides of the housing 20 are provided with inwardly recessed grooves 24, the grooves 24 extending to the third and/or fourth sides, and the grooves 24 being provided with second heat dissipating windows 25.

As shown in fig. 1 and 2, after the two housings 20 are combined, the first side and the second side are combined, a ventilation gap 241 is formed at the groove 24, and the second heat dissipation window 25 is disposed at the groove 24, so that the air flow in the housing can flow out through the ventilation gap 241, and the ventilation performance is improved.

In the above embodiment, in order to increase the connection integrity between the shield units after being mounted to the expansion positions, the first and second sides of the housing 20 are provided with the connection members 22, and when the shield units are mounted to the adjacent two expansion positions, the connection members 22 of the housing 20 at the adjacent positions are connected to each other.

Alternatively, the connection part 22 includes a first connection structure 221 provided to the first side and a second connection structure 222 provided to the second side, the second connection structure 222 being fitted with the first connection structure 221, the first connection structure 221 and the second connection structure 222 being fixed to each other in parallel with the length direction of the base 10.

In a specific embodiment, as shown in connection with fig. 2, the first connection structure 221 and the second connection structure 222 are configured as hook structures 223, so that the first connection structure 221 and the second connection structure 222 can be engaged with each other.

In other embodiments, the second connection structure 222 and the first connection structure 221 may also be magnetic attraction structures.

That is, when a new shield unit is installed, the shield unit is placed in an extended position from the top down, and after the shield unit is placed in place, the electrical connector 33 on the connection base 30 is connected to the power supply socket 11, the shield unit is powered on, and the connection members 22 between the two housings 20 are connected to each other to form an integral structure.

Referring to fig. 9, the left side is a expandable signal shielding device with 12 antennas, the middle is a common signal shielding device with 12 antennas, and the right side is a expandable signal shielding device with 18 antennas, so that the signal shielding device shown in the application can be increased by 50% of antennas under the same volume.

In combination with the above embodiment, the utility model sets the shielding device into the modes of the base and the shielding device units, the shielding device units can be independently arranged on the base, the base provides power supply, each shielding device unit is provided with a certain number of antenna units and can emit shielding signals in a target frequency band, if the target frequency band is newly increased, one or more shielding device units can be continuously expanded on the basis of the original shielding device units as required so as to cover the newly increased target frequency band which needs shielding;

compared with the linear arrangement mode in the prior art, the antenna units in each shielding unit are distributed in a circumferential array, and the shielding unit has advantages in the aspects of compactness and heat dissipation efficiency, so that when each shielding unit is spliced to form a shielding unit as an expandable independent unit, the size of the shielding unit is smaller than that of the existing shielding unit.

While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present utility model. Accordingly, the scope of the utility model is defined by the appended claims.

Claims (10)

1. A scalable signal shield comprising a base (10) and at least one shield unit detachably connected to the base (10), the base (10) being configured to supply power to a shield unit mounted to the base (10);

the shielding device comprises a connecting seat (30), a middle seat (40), a plurality of antenna units (50) and a shell (20) along the upward direction of a base (10), wherein each antenna unit (50) is used for generating a shielding signal of a target frequency band;

a fan (32) is arranged on the connecting seat (30);

-said intermediate seat (40) is fixed to said connection seat (30);

-a plurality of said antenna units (50) are mounted to said mid-seat (40);

the shell (20) at least covers the outer side of the antenna unit (50), and a radiating window is arranged on the shell (20);

the base (10) is provided with air inlets, a plurality of antenna units (50) are distributed in a circumferential array, ventilation channels (421) are formed in the inner side of the base, and the fan (32) is used for blowing air into the ventilation channels (421) so that air flow entering from the air inlets flows through the antenna units (50) around the ventilation channels and flows out of the heat dissipation windows.

2. The expandable signal shielding in claim 1, wherein a voltage transformation module is arranged in the base (10), and an electricity taking socket for connecting with the mains supply and a power supply socket (11) for supplying power to the shielding unit are further arranged on the base, and the voltage transformation module is configured to transform the mains supply to a voltage level required by the Cheng Bingbi unit.

3. The expandable signal shield according to claim 2, wherein the connection socket (30) is provided with an electrical connector (33), the electrical connector (33) being configured with a first end connected to the power supply socket (11) and a second end electrically connected to the fan (32), antenna unit (50).

4. The expandable signal shielding device according to claim 1, wherein the middle seat (40) is configured into a hollow column shape, a plurality of positioning columns (41) are arranged on the outer wall of the middle seat (40), mounting holes (411) for mounting the antenna units (50) are formed on the inner sides of every two positioning columns (41), the plurality of mounting holes (411) are distributed in a circumferential array, heat dissipation fins (42) are arranged on the inner side of the middle seat (40), and ventilation channels (421) are formed on the inner side of the middle seat (40) and around the heat dissipation fins (42).

5. The expandable signal shield of claim 4, wherein the heat sink fins (42) are positioned corresponding to the mounting pockets (411).

6. The expandable signal shielding in any one of claims 1-5, wherein a plurality of expansion bits for installing a shielding unit are arranged on the base (10), and a plurality of expansion bits are linearly distributed.

7. The expandable signal shield of claim 6, wherein the housing (20) is configured in a rectangular column including a first side and a second side parallel to a length direction of the base (10), and a third side and a fourth side perpendicular to the length direction of the base (10).

8. The expandable signal shielding in accordance with claim 7, wherein the first and second sides of the housing (20) are provided with inwardly recessed grooves (24), the grooves (24) extending to the third and/or fourth sides, the grooves (24) being provided with second heat dissipating windows (25).

9. The expandable signal shielding in accordance with claim 7, wherein the first side and the second side of the housing (20) are provided with connection members (22), and when the shielding units are installed in two adjacent expansion positions, the connection members (22) on the housing (20) in adjacent positions are connected to each other.

10. The expandable signal shield of claim 9, wherein the connection member (22) includes a first connection structure (221) provided to the first side and a second connection structure (222) provided to the second side, the second connection structure (222) being mutually adapted to the first connection structure (221), the first connection structure (221) and the second connection structure (222) being mutually fixed in a direction parallel to a length of the base (10).