Wireless data terminal and wireless data terminal control system

Abstract

The present application provides a wireless data terminal and a wireless data terminal control system. The wireless data terminal includes a housing, a drive component, a first antenna component and a second antenna component. The drive component can drive the first antenna component and the second antenna component to telescope and move in different directions between a first position and a second position. When the wireless data terminal is not needed or a large isolation between antennas is not needed, the drive component can drive the antenna component to retract to the first position, which can reduce the size of the volume occupied by the wireless data terminal while meeting the antenna isolation requirements. When a large isolation is required between antennas, the drive component can drive the antenna component to extend to the second position, and the isolation between the antennas is increased.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a wireless data terminal and a wireless data terminal control system. Background Art

[0002] Wireless data terminals can generally be terminals in the form of data cards such as Bluetooth adapters, user-end devices such as routers and phones, or wireless terminals such as mobile phones and tablets. Wireless data terminals generally include multiple antennas, and the distances between the multiple antennas are relatively fixed. Therefore, the isolation between the antennas (i.e., the ratio of the transmission power of one antenna to the received power of another antenna) is fixed and can only be applied to a single usage scenario. Summary of the invention

[0003] The present application provides a wireless data terminal, the antenna isolation of the wireless data terminal is variable, so that it can be applied to different usage scenarios.

[0004] In a first aspect, the present application provides a wireless data terminal, which includes a housing, a driving component, a first antenna component and a second antenna component, wherein the driving component is accommodated in the housing, and the driving component is used to drive the first antenna component and the second antenna component to telescope and move in different directions between a first position and a second position, wherein the first position is a position in which the antenna component is retracted to a maximum extent relative to the housing, and the second position is a position in which the antenna component is extended to a maximum extent from the housing; the first antenna component includes a first radiator, and the second antenna component includes a second radiator, the first radiator and the second radiator are used to transmit radio frequency signals, and the distance between the first radiator and the second radiator at the first position is smaller than the distance at the second position.

[0005] The first antenna component and the second antenna component are driven by the driving component to move and retract in different directions between the first position and the second position, that is, the first antenna component and the second antenna component can be driven by the driving component to shrink in the shell or extend out of the shell. When the wireless data terminal is not needed or there is no need for a large isolation between the antennas (such as a small signal coverage range), the first antenna component and the second antenna component can be driven to shrink in the shell, so that the volume occupied by the wireless data terminal can be reduced, and the wireless data terminal can have a good appearance effect. When there is a need for a large isolation between the antennas (such as a small signal coverage range), the first antenna component and the second antenna component can be driven to extend out of the shell in different directions. At this time, the distance between the first radiator of the first antenna component and the second radiator of the second antenna component is greater than the distance when the first antenna component and the second antenna component are retracted in the shell, and the isolation between the antennas is increased. In the wireless data terminal of the present application, the distance between the first antenna component and the second antenna component is adjustable, and the isolation between the antennas can be adjusted according to the actual use scenario to meet the requirements of antenna isolation.

[0006] In some embodiments, the operating frequency band of the first antenna component is different from the operating frequency band of the second antenna component; there are at least two first antenna components, and the center of a pattern formed by the projections of at least two first antenna components on a reference plane is a first center, and the first center is located on the central axis of the shell, and the angle α1 between the projections of two adjacent first antenna components on the reference plane and the line connecting the first center satisfies the relationship: α1 = 360° / N, where N is the number of the first antenna components, and the reference plane is perpendicular to the central axis of the shell.

[0007] Since first antenna components with the same working frequency band are more likely to be coupled, the isolation between antennas is affected. In the present application, the angle α1 between the projections of two adjacent first antenna components on the reference plane and the line connecting the first center satisfies the relationship: α1 = 360° / N, that is, when there are two first antenna components, the two first antenna components are symmetrically arranged relative to the central axis of the housing; when there are three or more first antenna components, each first antenna component is arranged at an equal distance, so as to ensure that the distance between any two adjacent first antenna components can reach the maximum, thereby maximizing the isolation between antennas.

[0008] In some embodiments, there are at least two second antenna components, and the center of a pattern formed by the projections of at least two second antenna components on the reference plane is a second center. The second center is located on the central axis of the housing, and the angle α2 between the projections of two adjacent second antenna components on the reference plane and the line connecting the second centers satisfies the relationship: α2 = 360° / M, where M is the number of second antenna components.

[0009] Since the operating frequency bands of the second antenna components are the same, the second antenna components with the same operating frequency band are more likely to be coupled with each other, thus affecting the isolation between the antennas. In the present application, the angle α2 between the projections of the two adjacent second antenna components on the reference plane and the line connecting the second centers satisfies the relationship: α2 = 360° / M, that is, when there are two second antenna components, the two second antenna components are symmetrically arranged relative to the central axis of the housing; when there are three or more second antenna components, the second antenna components are arranged at equal distances, so as to ensure that the distance between any two adjacent second antenna components can reach the maximum, thereby maximizing the isolation between the antennas.

[0010] In some embodiments, the number of the first antenna components in the wireless data terminal is the same as the number of the second antenna components, the first antenna components and the second antenna components are alternately arranged, and the distance from any first antenna component to two adjacent second antenna components is the same, thereby avoiding isolation problems caused by a first antenna component being too close to an adjacent second antenna component.

[0011] In one embodiment of the present application, the number of the first antenna components and the number of the second antenna components are both two, the two first antenna components are symmetrically arranged relative to the central axis of the housing, the two second antenna components are symmetrically arranged relative to the central axis of the housing, and the line connecting the two first antenna components is perpendicular to the line connecting the two second antenna components. That is, the angle α1 between the projections of the two first antenna components on the reference plane and the line connecting the first center satisfies the relationship: α1 = 360° / N, and the isolation between the two first antenna components is maximum. The angle α2 between the projections of the two second antenna components on the reference plane and the line connecting the second center satisfies the relationship: α2 = 360° / M, and the isolation between the two second antenna components is maximum. In addition, the distance from the first antenna component to the two adjacent second antenna components is the same, so as to avoid the problem of isolation caused by the distance between a first antenna component and an adjacent second antenna component being too close.

[0012] In some embodiments, the shell includes a tubular main shell, the main shell is provided with a plurality of through holes, the plurality of through holes are arranged at intervals along the circumference of the main shell, and each of the through holes connects the inner side and the outer side of the main shell; the driving component is located on the inner side of the main shell, and the driving component is used to drive the first antenna component and the second antenna component to extend and retract relative to each other through the plurality of through holes one by one.

[0013] Since the through holes are arranged at intervals in the circumferential direction of the main shell, the first antenna assembly and the second antenna assembly can be relatively extended and retracted through the multiple through holes one by one, thereby limiting the extension and retraction direction of the first antenna assembly and the second antenna assembly to only the direction from the central axis position of the main shell to each through hole, thereby ensuring that the first antenna assembly and the second antenna assembly can be extended and retracted in different directions.

[0014] In some embodiments, the driving assembly includes a motor, a gear, and a plurality of racks, one end of each of the racks is fixed to the first antenna assembly or the second antenna assembly, different racks are engaged with different positions of the gears, and different racks have different extension directions, and the extension direction of the rack is from one end of the rack away from the first antenna assembly or the second antenna assembly to one end of the rack connected to the first antenna assembly or the second antenna assembly.

[0015] The extension and retraction of the first antenna assembly and the second antenna assembly are controlled by a motor, a gear and a rack, and multiple racks are meshed with the same gear, so that the extension and retraction of multiple antenna assemblies connected to the racks can be controlled simultaneously by the rotation of one gear, and the control structure is simple. In addition, it is not necessary to control each antenna assembly to extend and retract relative to the housing in sequence, thereby simplifying the control process and improving the control efficiency.

[0016] In some embodiments, the driving assembly includes multiple motors, multiple gears, and multiple racks, each of the motors is connected to at least one of the gears, each of the gears is meshed with at least one of the racks, one end of each of the racks is fixed to the first antenna assembly or the second antenna assembly, and different racks have different extension directions, and the extension direction of the rack is from one end of the rack away from the first antenna assembly or the second antenna assembly to one end of the rack connected to the first antenna assembly or the second antenna assembly.

[0017] By controlling the extension and retraction of each first antenna assembly and each second antenna assembly respectively through different motors, different gears and racks, the corresponding first antenna assembly or second antenna assembly can be controlled to extend and retract as needed.

[0018] In some embodiments, the driving component includes a plurality of first magnetic components and a plurality of second magnetic components corresponding one-to-one to the plurality of first magnetic components, each of the second magnetic components is fixed to one end of the first antenna component or the second antenna component away from the outer side of the outer shell, and the first magnetic component is located on the side of the corresponding second magnetic component away from the outer side of the outer shell; the first magnetic component includes a first state and a second state, when the first magnetic component is in the first state, the first magnetic component attracts the corresponding second magnetic component; when the first magnetic component is in the second state, the first magnetic component repels the corresponding second magnetic component.

[0019] The extension and retraction of the first antenna component and the second antenna component are achieved by mutual attraction and repulsion between the first magnetic attraction component and the second magnetic attraction component, and the structure is simple and the energy consumption is low.

[0020] In some embodiments, the first antenna assembly includes a first antenna bracket and a first antenna body, the first radiator is disposed on the first antenna body, and the first antenna body is installed on the side of the first antenna bracket away from the central axis of the outer shell; the second antenna assembly includes a second antenna bracket and a second antenna body, the second radiator is disposed on the second antenna body, and the second antenna body is installed on the side of the second antenna bracket away from the central axis of the outer shell.

[0021] By installing the first antenna body on the side of the first antenna bracket away from the central axis of the shell, the distance between the first antenna body provided with the first radiator and the central axis of the shell is maximized, thereby maximizing the distance between the first antenna bodies of the plurality of first antenna assemblies, and increasing the distance between the first radiators as much as possible while keeping the volume of the wireless data terminal unchanged, thereby improving the isolation between the antennas corresponding to the first radiators; by installing the second antenna body on the side of the second antenna bracket away from the central axis of the shell, the distance between the second antenna body provided with the second radiator and the central axis of the shell is maximized, thereby maximizing the distance between the second antenna bodies of the plurality of second antenna assemblies, and increasing the distance between the second radiators as much as possible while keeping the volume of the wireless data terminal unchanged, thereby improving the isolation between the antennas corresponding to the second radiators.

[0022] In some embodiments, the first antenna body and the second antenna body are parallel to the central axis of the housing. When the wireless data terminal is placed on a horizontal support platform, the central axis of the housing is generally in a vertical plane perpendicular to the horizontal support platform. At this time, the first antenna body and the second antenna body are also in a vertical plane, thereby ensuring that the antenna can have a better antenna radiation range.

[0023] In some embodiments, the first antenna assembly further includes a first antenna housing, and the first antenna bracket and the first antenna body are both accommodated in the first antenna housing; the first antenna housing includes a first bottom wall and a first side wall arranged around the edge of the first bottom wall, the first antenna assembly is in the first position, and the outer surface of the first bottom wall is coplanar with the outer surface of the housing, and in this case, the wireless data terminal has a better appearance; the second antenna assembly further includes a second antenna housing, and the second antenna bracket and the second antenna body are both accommodated in the second antenna housing; the second antenna housing includes a second bottom wall and a second side wall arranged around the edge of the second bottom wall, the second antenna assembly is in the first position, and the outer surface of the second bottom wall is coplanar with the outer surface of the housing, and in this case, the wireless data terminal has a better appearance.

[0024] In some embodiments, the wireless data terminal also includes a mainboard and a feeder line, the mainboard includes a radio frequency front-end circuit, and the feeder line is electrically connected to the radio frequency front-end circuit and the radiator of the antenna; the first antenna bracket and the second antenna bracket are both provided with fixings, and the fixings are used to fix the feeder line to the first antenna bracket or the second antenna bracket, so as to ensure that when the feeder line is pulled during the extension and retraction process of the antenna assembly, the connection position of the feeder line and the first radiator or the second radiator remains stable, thereby avoiding the problem of the connection between the feeder line and the first radiator or the second radiator being detached due to the pulling of the feeder line.

[0025] In some embodiments, the wireless data terminal also includes a supporting bracket, which is accommodated in the shell, and the driving assembly and the first antenna assembly and the second antenna assembly are all arranged on the supporting bracket; the supporting bracket includes a plurality of grooves, and the plurality of grooves correspond one-to-one to the first antenna assembly and the second antenna assembly, and an extension direction of the groove is the same as a movement direction of the corresponding first antenna assembly or the second antenna assembly, and an extension direction of the groove is a direction from an end of the groove away from the outer side of the shell to an end of the groove close to the outer side of the shell, and the first antenna assembly and the second antenna assembly are at least partially accommodated in the groove and extend and retract along the groove.

[0026] Since the extension direction of the groove is the same as the movement direction of the corresponding first antenna assembly or the second antenna assembly, when the first antenna assembly or the second antenna assembly is extended or retracted, the first antenna assembly or the second antenna assembly can at least partially move along the extension direction of the groove, thereby ensuring that the movement process of the first antenna assembly or the second antenna assembly is smooth.

[0027] In some embodiments, the wireless data terminal further includes a processor and a radio frequency front-end circuit, wherein the radio frequency front-end circuit and the driving component are both connected to the processor, and the radio frequency front-end circuit is connected to the first radiator and the second radiator; the first radiator and the second radiator are used to receive a control signal and transmit it to the radio frequency front-end circuit; the radio frequency front-end circuit is used to process the control signal and transmit it to the processor; the processor is used to respond to the control signal to send a control instruction to the driving component; the driving component is used to respond to the control instruction to drive the first antenna component and the second antenna component to extend and retract relative to the housing. The wireless data terminal in this embodiment can respond to the control signal to achieve the extension and retraction of the first antenna component and the second antenna component, thereby achieving remote control of the extension and retraction of the first antenna component and the second antenna component of the wireless data terminal.

[0028] In the second aspect, the present application provides a wireless data terminal control system. The wireless data terminal control system includes a control terminal and the above-mentioned wireless data terminal; the control terminal includes a terminal processor and a transceiver, and the terminal processor is connected to the transceiver; the terminal processor is used to respond to the user's operation instructions to send the control signal via the transceiver. In the implementation mode of the present application, the user can control the extension and retraction of the first antenna component and the second antenna component of the wireless data terminal controlled by the control terminal, thereby realizing the extension and retraction control of the first antenna component and the second antenna component of the wireless data terminal in a simple and convenient way. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic structural diagram of a wireless data terminal in a first state provided by an embodiment of the present application;

[0030] Figure 2 yes Figure 1 A schematic diagram of the structure of the wireless data terminal of the illustrated embodiment in the second state;

[0031] Figure 3 yes Figure 1 The schematic diagram of the split structure of the wireless data terminal shown;

[0032] Figure 4 yes Figure 1 A schematic cross-sectional view of the wireless data terminal along direction II;

[0033] Figure 5 yes Figure 3 A top view of the main housing of the wireless data terminal shown;

[0034] Figure 6 is a top view of a main housing of a wireless data terminal according to another embodiment of the present application;

[0035] Figure 7 yes Figure 3 The schematic diagram of the disassembled structure of the antenna assembly of the wireless data terminal shown;

[0036] Figure 8 Shown Figure 4 Schematic diagram of the enlarged structure of position II;

[0037] Fig. 9 yes Figure 1 The wireless data terminal shown Figure 1 Schematic diagram of the cross section along the II-II direction;

[0038] Fig.10 yes Figure 1 A schematic diagram of the meshing structure of a portion of a rack and a gear of a wireless data terminal shown;

[0039] Fig.11 Another embodiment of the present invention is a wireless data terminal. Figure 1 Cross-sectional view along the II-II direction;

[0040] Fig.12 The wireless data terminal of other embodiments of the present application is Figure 1 Cross-sectional view along the II-II direction.

[0041] Fig.13 is a schematic diagram of the internal modules of a wireless data terminal in some embodiments of the present application;

[0042] Fig.14 It is a structural diagram of the wireless data terminal control system;

[0043] Fig.15 It is a schematic diagram of the functional module structure of the control terminal;

[0044] Fig.16 is a flow chart of a control method of a wireless data terminal;

[0045] Fig.17 is an operation interface diagram of an application program when controlling the antenna assembly to extend relative to the housing in one embodiment of the present application;

[0046] Fig.18 yes Fig.17 The operation interface diagram of the application program when controlling the antenna assembly to retract relative to the housing in the illustrated embodiment. DETAILED DESCRIPTION

[0047] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0048] The present application provides a wireless data terminal, which is used to provide data services, realize communication between the device and other devices, or serve as a transfer station for other devices to realize communication between devices. The wireless data terminal can be a mobile phone, a telephone, a router, etc. The present application takes the wireless data terminal as a router as an example for explanation.

[0049] See also Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of a wireless data terminal 100 in a first state according to an embodiment of the present application. Figure 2 yes Figure 1 A schematic diagram of the structure of the wireless data terminal 100 of the illustrated embodiment in the second state. The wireless data terminal 100 is a router. The wireless data terminal 100 includes a plurality of antennas. Each antenna includes a radiator, and the transmission of radio frequency signals is achieved through the radiator. The wireless data terminal 100 includes a housing 10 and a plurality of antenna assemblies 30. The plurality of antenna assemblies 30 include at least one first antenna assembly and at least one second antenna assembly. The operating frequency bands of the first antenna assembly and the second antenna assembly may be the same or different. Each antenna assembly 30 includes a radiator, and the radiator is used to transmit radio frequency signals. The first antenna assembly includes a first radiator, and the second antenna assembly includes a second radiator. The antenna assembly 30 can be telescopically moved between a first position and a second position, so that the antenna assembly 30 is retracted into the housing 10, partially extended out of the housing 10, or fully extended out of the housing 10.

[0050] When the wireless data terminal 100 is in the first state and the antenna assembly 30 is in the first position, the antenna assembly 30 is retracted to the maximum extent relative to the housing 10. At this time, the side of the antenna assembly 30 facing the outside of the housing 10 is coplanar with the outer surface of the housing 10. It should be noted that the "side of the antenna assembly facing the outside of the housing 10 is coplanar with the outer surface of the housing 10" mentioned here is not necessarily an exact coplanarity, and there may be a slight error. Alternatively, if the side of the antenna assembly 30 facing the housing 10 is slightly recessed from the outer surface of the housing 10, it can be considered that the side of the antenna assembly 30 facing the outside of the housing 10 is coplanar with the outer surface of the housing 10, or if the side of the antenna assembly 30 facing the housing 10 is slightly protruding from the outer surface of the housing 10, it can also be considered that the side of the antenna assembly 30 facing the outside of the housing 10 is coplanar with the outer surface of the housing 10. When the antenna assembly 30 is in the first position, the antenna assembly 30 has no obvious structure protruding from the housing 10 or is obviously sunken in the groove of the housing 10, so that the side of the antenna assembly 30 facing the outside of the housing 10 is coplanar with the outer surface of the housing 10 and has a good appearance. The first state may be a state when the wireless data terminal 100 is not in use, or may be a state where the radio frequency signal of the wireless data terminal 100 does not need to be very strong and can meet the use requirements. For example, when the radio frequency signal of the wireless data terminal 100 needs to cover a small area, the radio frequency signal strength at the edge of the coverage area can still meet the requirements, and the wireless data terminal 100 may be in the first state.

[0051] When the wireless data terminal 100 is in the second state, the antenna assembly 30 is in the second position, and at this time, the antenna assembly 30 extends out of the housing 10 to the maximum extent. The second state may be a state where the radio frequency signal of the wireless data terminal 100 needs to cover a larger area and the radio frequency signal strength of the wireless data terminal 100 needs to be stronger.

[0052] When the multiple antenna assemblies 30 are in the first position relative to the housing 10, the distance between each radiator is less than the distance between the radiators when the multiple antenna assemblies 30 are in the second position relative to the housing 10. Therefore, by retracting the antenna assembly 30 relative to the housing 10, the specific distance between each antenna assembly 30 is adjusted, and the distance between the radiators of the antenna assembly 30 is adjusted, so as to adjust the isolation between the antennas corresponding to each radiator, and improve the wireless communication performance of the wireless data terminal 100. For example, when the RF signal of the wireless data terminal 100 needs to cover a large area, the RF signal strength of the wireless data terminal 100 needs to be strong, so the isolation between the multiple antennas of the wireless data terminal 100 is required to be high. At this time, the antenna assembly 30 can be driven to extend relative to the housing 10, so that the wireless data terminal 100 is in the second state. At this time, the distance between each radiator increases with the extension of the antenna assembly 30 relative to the housing, thereby improving the isolation between each antenna and meeting the antenna isolation requirements. Among them, antenna isolation refers to the ratio of the transmission power of one antenna to the received power of another antenna. For example, the transmission power of the antenna corresponding to the first radiator is P1. The second radiator is coupled with the first radiator, thereby partially receiving the signal emitted by the antenna corresponding to the first radiator, and the received power is P2. At this time, the isolation between the antenna corresponding to the first radiator and the antenna corresponding to the second radiator is P1 / P2. In order to reduce the impact of the signal transmitted between the antennas, the higher the isolation, the better. Generally speaking, increasing the distance between the radiators of the antenna can increase the isolation of the antenna.

[0053] It is understandable that in some embodiments, according to the actual usage scenario and the different requirements for the isolation between antennas, the extension length of the antenna assembly 30 relative to the housing 10 can be adjusted as needed, that is, the distance between each radiator can be adjusted, so as to meet the requirements for the isolation between antennas while minimizing the size of the volume occupied by the wireless data terminal 100. In some embodiments, only part of the antenna assemblies 30 in the multiple antenna assemblies 30 can be driven to extend and retract to change the isolation between the part of the antenna assemblies 30 and other antenna assemblies 30. For example, only the first antenna assembly and the second antenna assembly in the multiple antenna assemblies 30 are extended and retracted relative to the housing 10, and the spacing between the first radiator and the second radiator at the first position is smaller than the spacing at the second position. By adjusting the extension state of the first antenna assembly and the second antenna assembly, the isolation between the first antenna assembly and the second antenna assembly can be adjusted. It should be noted that the isolation between the antenna assemblies 30 mentioned in this application refers to the isolation between the antennas corresponding to the radiators included in the antenna assembly 30. For example, the isolation between the first antenna assembly and the second antenna assembly refers to the isolation between the antenna corresponding to the first radiator and the antenna corresponding to the second radiator.

[0054] The present application can change the state of the wireless data terminal 100 according to the actual usage scenario, ensure that the antenna components 30 of the wireless data terminal 100 can have good isolation in various usage scenarios, and the wireless data terminal 100 can have good performance. In addition, it can ensure that while the isolation between the antenna components 30 of the wireless data terminal 100 is met, the volume occupied by the wireless data terminal 100 is minimized. When the wireless data terminal 100 is in the first state, the wireless data terminal 100 can also have a good appearance effect.

[0055] See also Figure 3 and Figure 4 , Figure 3 Shown Figure 1 The schematic diagram of the split structure of the wireless data terminal 100 is shown in FIG. Figure 4 for Figure 1 The wireless data terminal 100 is a schematic cross-sectional view along the II direction. The wireless data terminal 100 includes a housing 10 , a plurality of antenna components 30 , a mainboard 20 and a driving component 40 .

[0056] The housing 10 is used to accommodate other components of the wireless data terminal 100 to fix and protect the other components. In addition, the housing 10 can also play a decorative role, so that the wireless data terminal 100 can have a better appearance. In this embodiment, the mainboard 20 and the drive assembly 40 are accommodated in the housing 10. The housing 10 includes a main housing 11, a bottom housing 12 and a top housing 13. When the wireless data terminal 100 is placed on the carrier, the bottom housing 12 contacts the carrier. The top housing 13 is arranged on both sides of the main housing 11 opposite to the bottom housing 12.

[0057] The main housing 11 is tubular, and a first opening 111 and a second opening 112 are formed at opposite ends of the main housing 11. The internal components of the wireless data terminal 100 can be loaded into the main housing 11 from the first opening 111 or the second opening 112. The bottom housing 12 is installed in the first opening 111, and the top housing 13 is installed in the second opening 112. In this embodiment, the main housing 11 is a cylindrical tube with openings at both ends. It is understood that the main housing 11 can be designed into any shape as needed, for example, it can be a prismatic tube or a pyramidal tube structure.

[0058] The connection between the bottom shell 12 and the main shell 11 is a detachable connection (such as a snap-fit ​​connection, a threaded connection, etc.) to facilitate subsequent repair or maintenance of the wireless data terminal 100. In other embodiments, the connection between the bottom shell 12 and the main shell 11 can also be a non-detachable connection (such as a glue connection) to reduce the risk of the bottom shell 12 accidentally falling off, thereby making the wireless data terminal 100 more reliable.

[0059] The connection between the top housing 13 and the main housing 11 is a detachable connection (e.g., a snap-fit ​​connection, a threaded connection, etc.) to facilitate subsequent repair or maintenance of the wireless data terminal 100. In other embodiments, the connection between the top housing 13 and the main housing 11 may also be a non-detachable connection (e.g., adhesive connection) to reduce the risk of accidental detachment of the top housing 13, thereby making the wireless data terminal 100 more reliable.

[0060] The main shell 11 is provided with a plurality of through holes 114, and the plurality of through holes 114 are arranged at intervals along the circumference of the main shell 11. Among them, each through hole 114 connects the inner side and the outer side of the main shell 11, that is, the through hole 114 is a through hole that penetrates the tube wall of the main shell 11. The plurality of through holes 114 correspond to the plurality of antenna assemblies 30 one by one. The driving assembly 40 is arranged in the main shell 11, and the driving assembly 40 can drive the antenna assembly 30 to extend and retract relative to the shell 10 through the corresponding through hole 114, thereby limiting the extension direction of the antenna assembly 30 to only the direction from the central axis position of the main shell to each through hole 114, thereby ensuring that the antenna assembly 30 extends and retracts in different directions. It can be understood that in some other embodiments of the present application, the through hole 114 can also be provided on the top shell 13 or the bottom shell 12, and the antenna assembly 30 can extend and retract relative to the top shell 13 or the bottom shell 12 through the through hole 114.

[0061] In some embodiments of the present application, the centers of the plurality of through holes 114 are located on the same plane. When the antenna assembly 30 extends from the through hole 114, the centers of the antenna assembly 30 are located on the same plane, so that the wireless data terminal 100 can have a better appearance. In some other embodiments, the plurality of through holes 114 can also be arranged arbitrarily, that is, the centers of the antenna assembly 30 can also be not on the same plane to meet the requirements of the appearance design. In addition, in some embodiments, the centers of the antenna assembly 30 are not on the same plane, and the connecting line of the centers of the plurality of through holes 114 can be serrated or other shapes.

[0062] In some embodiments, the plurality of antenna assemblies 30 include at least two first antenna assemblies, the center of a pattern formed by projections of at least two of the first antenna assemblies on a reference plane is a first center, the first center is located on the central axis of the housing, and an angle α1 between the projections of two adjacent first antenna assemblies on the reference plane and a line connecting the first centers satisfies the relationship: α1 = 360° / N, where N is the number of the first antenna assemblies, and the reference plane is perpendicular to the central axis a of the housing 10 (e.g. Figure 4In particular, the line connecting the projection of the first antenna component on the reference plane and the first center may be specifically the line connecting the projection of the center of the first antenna component on the reference plane and the first center. For example, when there are two first antenna components, the two first antenna components are symmetrically arranged relative to the central axis a of the housing 10, the first center is the midpoint of the line connecting the projections of the two first antenna components on the reference plane, and the line connecting the projection of the first antenna component on the reference plane and the first center is 180°; when there are three first antenna components, the first center is the center of the triangle formed by the projections of the three first antenna components on the reference plane, and the line connecting the projections of two adjacent first antenna components on the reference plane and the first center is 120°. Among them, the operating frequency bands of the first antenna components are the same. Since coupling is more likely to occur between antenna components with the same operating frequency band, the isolation between antennas is affected. In the present application, the angle α1 between the projections of two adjacent first antenna components on the reference plane and the line connecting the first center satisfies the relationship: α1 = 360° / N, that is, when there are two first antenna components, the two first antenna components are symmetrically arranged relative to the central axis of the shell; when there are three or more first antenna components, each first antenna component is arranged at an equal distance, so as to ensure that the distance between any two adjacent first antenna components can reach the maximum, thereby maximizing the isolation between the antennas.

[0063] In some embodiments, the plurality of antenna assemblies 30 further include a plurality of second antenna assemblies. The operating frequency bands of the second antenna assemblies are the same, and the operating frequency bands of the first antenna assembly are different from the operating frequency bands of the second antenna assembly. The center of the pattern formed by the projections of at least two of the second antenna assemblies on the reference plane is the second center, and the second center is located on the central axis of the housing. The angle α2 between the projections of two adjacent second antenna assemblies on the reference plane and the line connecting the second center satisfies the relationship: α2 = 360° / M, where M is the number of the second antenna assemblies, and the reference plane is perpendicular to the central axis a of the housing 10. Specifically, the projection of the second antenna assembly on the reference plane and the line connecting the second center can be the projection of the center of the second antenna assembly on the reference plane and the line connecting the second center. For example, when there are two second antenna components, the two second antenna components are symmetrically arranged relative to the central axis a of the housing 10, and the second center is the midpoint of the line connecting the projections of the two second antenna components on the reference plane, and the line connecting the projections of the second antenna components on the reference plane and the second center is 180°; when there are three second antenna components, the second center is the center of the triangle formed by the projections of the three second antenna components on the reference plane, and the line connecting the projections of two adjacent second antenna components on the reference plane and the second center is 120°. Since the operating frequency bands of the second antenna components are the same, the second antenna components with the same operating frequency bands are more likely to be coupled and affect the isolation between the antennas. In the present application, the angle α2 between the projections of the two adjacent second antenna components on the reference plane and the line connecting the second center satisfies the relationship: α2 = 360° / M, that is, when there are two second antenna components, the two second antenna components are symmetrically arranged relative to the central axis of the housing; when there are three or more second antenna components, the second antenna components are arranged at equal distances, so as to ensure that the distance between any two adjacent second antenna components can reach the maximum, thereby maximizing the isolation between the antennas.

[0064] In some embodiments, the number of the first antenna components in the wireless data terminal 100 is the same as the number of the second antenna components, a first antenna component is provided between two adjacent second antenna components, and a second antenna component is provided between two adjacent first antenna components, that is, the first antenna components and the second antenna components are alternately arranged to ensure that the distance from any first antenna component to two adjacent second antenna components is the same, avoiding the problem of isolation caused by excessive distance between the first antenna component and the adjacent antenna component.

[0065] For example, Figure 4In the illustrated embodiment, the antenna assembly 30A and the antenna assembly 30C are both first antenna assemblies, and the operating frequency band of the first antenna assembly is the 2.4G WIFI frequency band, that is, the first radiator included in the first antenna assembly can resonate to generate an operating frequency band of about 2.4G. Figure 4 The antenna components 30A and 30C are symmetrically arranged with respect to the central axis of the housing 10, that is, the projection of the antenna component 30B and the antenna component 30C on the reference plane is 180° from the line connecting the first center. The antenna components 30B and 30D are both second antenna components, and the operating frequency band of the second antenna component is the 5G WIFI frequency band, that is, the radiator 322 included in the second antenna component can resonate and produce an operating frequency band of about 5G. Among them, the antenna components 30B and 30D are symmetrically arranged with respect to the central axis of the housing 10, that is, the projection of the antenna component 30B and the antenna component 30D on the reference plane is 180° from the line connecting the first center. Moreover, the antenna components 30A and 30C are alternately arranged with the antenna components 30B and 30D, that is, the antenna components 30A, 30B, 30C, and 30D are arranged in sequence in the circumferential direction of the housing 10. The line connecting the antenna components 30A and 30C is perpendicular to the line connecting the antenna components 30B and 30D. By arranging two antenna assemblies 30 with the same working frequency band symmetrically relative to the central axis a of the housing 10 and arranging antenna assemblies 30 with different working frequency bands alternately, the antenna assemblies 30 can be arranged as compactly as possible on the wireless data terminal 100, so as to reduce the volume of the wireless data terminal 100 while maximizing the distance between the two radiators 322 with the same working frequency band, thereby reducing the coupling between the signals transmitted by the two radiators 322 with the same working frequency band, thereby obtaining better antenna performance.

[0066] In some embodiments of the present application, a plurality of through holes 114 are evenly spaced in the circumferential direction of the main shell 11. That is, when two through holes 114 are provided on the main shell 11, the two through holes 114 are symmetrically arranged relative to the central axis a of the shell 10; when three or more through holes 114 are provided on the main shell 11, the distance between two adjacent through holes 114 in the circumferential direction of the main shell 11 is the same, so as to avoid the distance between two adjacent through holes 114 being too close, thereby avoiding the distance between two adjacent antenna assemblies 30 corresponding to two adjacent through holes 114 being too close. In addition, the plurality of through holes 114 on the shell 10 are evenly spaced in the circumferential direction of the tube wall of the main shell 11, so that the wireless data terminal 100 can have symmetrical beauty, thereby improving the appearance of the wireless data terminal 100. Please refer to Figure 5 , Figure 5 Shown Figure 3The top view of the main housing 11 of the wireless data terminal 100 is shown. In this embodiment, there are four antenna components 30, and there are also four through holes 114 corresponding to the antenna components 30. The four through holes 114 are through hole 114A, through hole 114B, through hole 114C, and through hole 114D. Through hole 114A corresponds to antenna component 30A, and antenna component 30A is retracted relative to housing 10 through through hole 114A; through hole 114B corresponds to antenna component 30B, and antenna component 30B is retracted relative to housing 10 through through hole 114B; through hole 114C corresponds to antenna component 30C, and antenna component 30C is retracted relative to housing 10 through through hole 114C; through hole 114D corresponds to antenna component 30D, and antenna component 30D is retracted relative to housing 10 through through hole 114D. The central angle α between the centers of any two adjacent through holes 114 among the four through holes 114 is 90°, that is, the four through holes 114 are evenly arranged along the circumference of the main housing 11 .

[0067] It should be noted that, in some embodiments, the plurality of through holes 114 may be arranged at uneven intervals in the circumferential direction of the main shell 11. That is, when two through holes 114 are provided on the main shell 11, the two through holes 114 cannot be symmetrically arranged relative to the central axis a of the shell 10; when three or more through holes 114 are provided on the main shell 11, the distance between two adjacent through holes 114 on the main shell 11 may be different, so as to meet the needs of actual use. For example, when the distance between two adjacent antenna components 30 has a smaller effect on the isolation of the antenna, while the distance between another two antenna components 30 has a greater effect on the isolation of the antenna, the distance between two adjacent antenna components 30 may be smaller than the distance between another two adjacent antenna components 30. Therefore, the distance between two through holes 114 corresponding to two adjacent antenna components 30 is smaller than the distance between two through holes 114 corresponding to another two adjacent antenna components 30. Please refer to Figure 6 , Figure 6 FIG. 1 is a top view of a main housing 11 of a wireless data terminal 100 according to another embodiment of the present application. Figure 6 In the illustrated embodiment, the operating frequencies of the antenna component 30A corresponding to the through hole 114A and the antenna component 30D corresponding to the through hole 114D are different, and the distance between the antenna component 30A and the antenna component 30D has a smaller isolation degree for the antenna; while the operating frequencies of the antenna component 30A corresponding to the through hole 114A and the antenna component 30C corresponding to the through hole 114C are the same, and the distance between the antenna component 30A and the antenna component 30C has a larger isolation degree for the antenna. Therefore, the distance between the through hole 114A and the through hole 114D is smaller than the distance between the through hole 114A and the through hole 114C.

[0068] Please review Figure 3 and Figure 4In some embodiments, the inner cavity of the main shell 11 further includes a partition 113, which divides the inner cavity of the main shell 11 into a stacked first cavity 11a and a second cavity 11b. The first cavity 11a is connected to the first opening 111, and the second cavity 11b is connected to the second opening 112. The driving component 40 and the antenna component 30 are accommodated in the second cavity 11b, and the main board 20 is arranged in the first cavity 11a. By providing the partition 113, the radial strength of the main shell 11 can be enhanced to prevent the main shell 11 from being damaged by the radial force. The partition 113 separates the main board 20 and the antenna component 30 in different spaces, which can reduce the entry of impurities such as water and dust from the first cavity 11a into the second cavity 11b, thereby preventing the main board 20 in the first cavity 11a from being damaged by the impurities. Furthermore, the mainboard 20 and the antenna assembly 30 are located in different cavities, thereby ensuring that there is a sufficient distance between the antenna assembly 30 and the mainboard 20 to prevent the electromagnetic radiation generated by the mainboard 20 from affecting the signal transmission of the antenna assembly 30.

[0069] The main board 20 is integrated with a radio frequency front-end circuit 201. The radio frequency front-end circuit 201 is used to process radio frequency signals. Specifically, the radio frequency front-end circuit 201 can be used to modulate radio frequency signals or demodulate radio frequency signals. The antenna assembly 30 is electrically connected to the radio frequency front-end circuit 201, and the radio frequency signal modulated by the radio frequency front-end circuit 20 is transmitted to the antenna assembly 30 and outputted through the antenna assembly 30, or the radio frequency signal received by the antenna assembly 30 is transmitted to the radio frequency front-end circuit 201 and demodulated by the radio frequency front-end circuit 201. In this embodiment, the antenna assembly 30 is electrically connected to the radio frequency front-end circuit 201 through a feeder line 202. Among them, the feeder line 202 can be a coaxial line, a microstrip line or a flexible circuit board. An opening is provided on the antenna partition 113, and the feeder line 202 passes through the opening to connect the antenna assembly 30 located in the first cavity 11a with the radio frequency front-end circuit 201 in the second cavity 11b.

[0070] See also Figure 4 and Figure 7 , Figure 7 Shown Figure 3The schematic diagram of the disassembled structure of the antenna assembly 30 of the wireless data terminal 100 shown in the figure. Each antenna assembly 30 includes an antenna bracket 31 and an antenna body 32 installed on the antenna bracket 31. The antenna bracket 31 included in the first antenna assembly is a first antenna bracket, and the antenna body 32 included is a first antenna body; the antenna bracket 31 included in the second antenna assembly is a second antenna bracket, and the antenna body 32 included is a second antenna body. Among them, the antenna body 32 includes a carrier 321 and a radiator 322 arranged on the carrier 321. The radiator included in the first antenna body is a first radiator, and the radiator included in the second antenna assembly is a second radiator. Among them, the radiator 322 is used to send or receive radio frequency signals. The antenna of the present application can be various types of antennas such as ceramic antennas, circuit board antennas, steel sheet antennas, laser direct structuring (LDS) antennas or in-mold injection molding antennas. In this embodiment, the antenna is a circuit board antenna, the antenna body 32 is a printed circuit board (PCB), the carrier 321 is a dielectric board of the printed circuit board, and a conductive printed pattern is formed on the dielectric board, wherein the formed conductive printed pattern is the radiator 322 of the antenna. When the working frequency bands of the antenna are different, the patterns of the radiator 322 of the antenna may be different. In the embodiment of the present application, the working frequency band of the antenna corresponding to the first radiator is different from the working frequency band of the antenna corresponding to the second radiator, and the patterns of the first radiator and the second radiator are different. For example, Figure 4 The wireless data terminal 100 of the embodiment shown is a dual-band router, which can operate in the 2.4G WiFi band and the 5G WiFi band. Figure 4 The first radiators included in the antenna assembly 30A and the antenna assembly 30C of the illustrated embodiment can resonate to generate an operating frequency band of about 2.4G; the second radiators included in the antenna assembly 30B and the antenna assembly 30D can resonate to generate an operating frequency band of about 5G. It can be understood that the number of antennas and the operating frequency band of the antennas can be changed according to actual needs. For example, the number of antennas can be three or six, and the operating frequency band of the antennas can also be about 4G.

[0071] The antenna further includes a feeder 202, one end of which is electrically connected to the radiator 322, and the other end of which is electrically connected to the RF front-end circuit 201, so as to electrically connect the antenna assembly 30 and the RF front-end circuit 201 through the feeder 202. In some embodiments, a fixing member 315 is further provided in the antenna bracket 31, and the feeder 202 is fixed to the antenna bracket 31 by the fixing member 315, so as to avoid the problem of the feeder 202 being pulled and disconnected from the radiator 322 during the extension and retraction process of the antenna assembly 30. For example, the fixing member 315 can be a buckle or a clamping ring, etc., to clamp the feeder 202 inside the antenna bracket 31.

[0072] In some embodiments, the antenna body 32 is parallel to the central axis a of the housing 10. When the wireless data terminal 100 is placed on a horizontal support platform, the central axis a of the housing 10 is perpendicular to the vertical surface of the support platform. At this time, the antenna body 32 is in a vertical state, thereby ensuring that the antenna can have a better antenna radiation range. It is understandable that in some other embodiments, the plane where the antenna body 32 is located may also intersect with the central axis a of the housing 10.

[0073] The connection between the antenna body 32 and the antenna bracket 31 is a detachable connection (such as a snap-fit ​​connection) to facilitate maintenance and replacement of the antenna body 32 or the antenna bracket 31. In the embodiment of the present application, the antenna bracket 31 is a rectangular frame structure, including a first frame 311, a second frame 312, and a third frame 313 connected between the first frame 311 and the second frame 312. The third frame 313 is located at one end of the first frame 311 and the second frame 312, and the antenna body 32 is located at the other end of the first frame 311 and the second frame 312 away from the third frame 313. In some embodiments, a slide groove 314 is relatively provided at one end of the first frame 311 away from the third frame 313 and one end of the second frame 312 away from the third frame 313, and the opposite sides of the antenna body 32 are respectively snapped into the slide groove 314 of the first frame 311 and the slide groove 314 of the second frame 312, so as to snap the antenna body 32 with the antenna bracket 31, so as to realize the detachable connection between the antenna body 32 and the antenna bracket 31. In other embodiments, the connection between the bottom shell 12 and the main shell 11 may also be a non-detachable connection (such as gluing) to reduce the risk of accidental separation between the antenna body 32 and the antenna bracket 31, thereby making the wireless data terminal 100 more reliable.

[0074] The third frame 313 of each antenna assembly 30 is located between the antenna body 32 and the central axis a of the housing 10 , so that the distance between the antenna bodies 32 of each antenna assembly 30 can be as far as possible to ensure the isolation between the antennas as much as possible.

[0075] In some embodiments, the antenna assembly 30 further includes an antenna housing 33, and the antenna body 32 and the antenna bracket 31 are accommodated in the antenna housing 33. The antenna housing 33 is used to protect the antenna body 32 and the antenna bracket 31 located inside the antenna housing 33, and ensure that the wireless data terminal 100 can have a good appearance in any state. The antenna housing 33 included in the first antenna assembly is a first antenna housing, and the antenna housing 33 included in the second antenna assembly is a second antenna housing. In this embodiment, the antenna housing 33 includes a receiving cavity 33a with an opening on one side, and the antenna body 32 and the antenna bracket 31 are arranged in the receiving cavity 33a through the opening and fixed to the antenna housing 33. Specifically, the antenna housing 33 includes a bottom wall 331 and a side wall 332 arranged around the periphery of the bottom wall 331, and the bottom wall 331 and the side wall 332 enclose the receiving cavity 33a. Among them, the bottom wall 331 and the opening of the receiving cavity 33a are arranged opposite to each other. When the antenna body 32 and the antenna bracket 31 are received in the antenna housing 33 , the antenna body 32 is close to the bottom wall 331 of the antenna housing 33 , so that the antenna body 32 can be closest to the outside of the wireless data terminal 100 , and can better receive and transmit radio frequency signals.

[0076] In the embodiment of the present application, the size and shape of the cross section of the side wall 332 of the antenna housing 33 perpendicular to the moving direction of the corresponding antenna assembly 30 are substantially the same as the size and shape of the through hole 114 corresponding to the antenna assembly 30, so as to ensure that the antenna assembly 30 can extend through the through hole 114 or be received in the housing 10, and minimize the gap between the antenna housing 33 and the through hole 114, so as to ensure that the wireless data terminal 100 has a good appearance, and can reduce the entry of impurities such as water and dust into the housing 33 from the gap between the housing 33 and the through hole 114. In this embodiment, the side wall 332 of the antenna is a rectangular frame, including two first side walls 3321 arranged oppositely and two second side walls 3322 arranged oppositely, and the second side wall 3322 is connected between the two first side walls 3321. When the antenna assembly 30 is in the first position relative to the housing 10, the outer surface of the bottom wall 331 of the antenna housing 33 facing away from the receiving cavity 33a is coplanar with the outer surface of the housing 10. At this time, the side of the antenna assembly 30 facing the outside of the housing 10 is coplanar with the outer surface of the housing 10, which has a better appearance effect. In this embodiment, the wireless data terminal 100 is a cylindrical structure in the first state, and the outer surface of the bottom wall 331 of the antenna housing 33 is a curved surface with a radius of curvature that is the same as the radius of curvature of the outer surface of the housing 10. When the antenna assembly 30 is in the first position relative to the housing 10, the surface of the bottom wall 331 of the antenna housing 33 away from the central axis a of the housing 10 is located on the same arc surface as the surface of the housing 10. Optionally, in some other embodiments, the wireless data terminal 100 may also be other shapes. For example, the wireless data terminal 100 is a quadrangular prism structure in the first state, and at this time, the outer surface of the bottom wall 331 of the antenna housing 33 is a plane. When the antenna assembly 30 is in the first position relative to the housing 10, the outer surface of the bottom wall 331 of the antenna housing 33 is located on the same plane as the outer surface of the housing 10.

[0077] In the implementation manner of the present application, the housing 10, the antenna housing 33 and the antenna bracket 31 are all made of insulating materials to avoid affecting the radio frequency signal transmitted by the antenna.

[0078] The antenna bracket 31 can be detachably arranged in the antenna housing 33, so as to facilitate the maintenance and replacement of the antenna bracket 31 and the antenna body 32 or the antenna bracket 31 arranged on the antenna bracket 31. For example, the antenna bracket 31 can be detachably connected in the antenna housing 33 by screw connection or snap connection. Figure 4 and Figure 8 , Figure 8 Shown Figure 4Schematic diagram of the enlarged structure of the middle position II. In this embodiment, the first protrusion 333 is provided on both the first side walls 3321, and the first protrusion 333 includes a first limiting surface 3331 facing the bottom wall. The first frame 311 and the second frame 312 of the antenna bracket 31 are both provided with a second protrusion 334, and the second protrusion 334 includes a second limiting surface 3341 on a side away from the antenna body 32. When the antenna bracket 31 is accommodated in the antenna housing 33, the first frame 311 and the second frame 312 of the antenna bracket 31 are both against the bottom wall 331 of the antenna housing 33, and the second limiting surface 3341 is against the first limiting surface 3331, so that the antenna bracket 31 is clamped and fixed in the antenna housing 33. In other embodiments, the connection between the bottom shell 12 and the main shell 11 can also be a non-detachable connection (for example, adhesive bonding) to reduce the risk of accidental separation between the antenna bracket 31 and the antenna housing 33, so that the reliability of the wireless data terminal 100 is higher.

[0079] In some embodiments, the antenna further includes a tuning element such as a capacitor and a resistor, and the tuning element is connected between the radiator 322 and the RF front-end circuit 201, and the operating frequency of the antenna is adjusted by the tuning element. The tuning element can be integrated into the carrier 321 of the antenna body 32, or integrated into the mainboard 20, or connected to the feed line 202.

[0080] Please review Figure 3 and Figure 4 In some embodiments of the present application, the driving assembly 40 includes a driving part 41 and a transmission part 42. The transmission part 42 is connected to the antenna assembly 30. The driving part 41 is used to drive the transmission part 42 to move, and the movement of the transmission part 42 drives the antenna assembly 30 to extend or retract into the housing 10. Figure 3In the illustrated embodiment, the driving part 41 includes a motor; the transmission part 42 includes a gear 421, a gear shaft 422, and a rack 423. The gear 421 is connected to the gear shaft 422, and the axis of the gear 421 coincides with the axis of the gear shaft 422. Among them, the axis of the gear 421 is parallel to or coincides with the central axis a of the housing 10. The motor is connected to the gear shaft 422, and drives the gear shaft 422 to rotate with the axis of the gear shaft 422 as the rotating shaft. The gear shaft 422 rotates to drive the gear 421 to rotate with the axis as the rotating shaft. The rack 423 is meshed with the gear 421, and the gear 421 rotates to drive the rack 423 to move along its length direction. There are multiple racks 423, and the multiple racks 423 correspond to multiple antenna assemblies 30 one by one. One end of each rack 423 is connected to its corresponding antenna assembly 30, and when the rack 423 moves, it drives its corresponding antenna assembly 30 to extend and retract relative to the housing 10. In some embodiments, the extension direction of each rack 423 is different, and when the gear 421 drives the rack 423 meshing with it, each rack 423 can drive the antenna assembly 30 connected to the corresponding rack 423 to move in different directions. The extension direction of the rack 423 is from the end of the rack 423 away from the antenna assembly 30 to the end connected to the antenna assembly 30.

[0081] In some embodiments, the rack 423 is connected to the antenna bracket 31 and is integrally formed with the antenna bracket 31 , and the gear 421 and the gear shaft 422 may also be integrally formed to reduce assembly steps and improve production efficiency.

[0082] In other embodiments of the present application, the drive unit 41 and the transmission unit 42 may also be other structures. For example, the drive unit 41 may be a drive structure such as a cylinder; the transmission unit 42 may be a transmission structure such as a turbine and a worm, a screw, a connecting rod, etc. It is understandable that the transmission unit 42 may be a transmission structure or a combination of different types of transmission structures. For example, the transmission unit 42 may include a gear 421 and a rack 423, a screw, part of the antenna assembly 30 is connected to the rack 423, and part of the antenna assembly 30 is connected to the screw. The drive unit 41 can drive the gear 421 and the screw to rotate, and the gear 421 rotates to drive the antenna assembly 30 connected to the rack 423 to extend and retract relative to the housing 10; when the drive unit 41 drives the screw to rotate, the screw rotates to drive the antenna assembly 30 connected thereto to extend and retract relative to the housing 10.

[0083] In some embodiments of the present application, the driving unit 41 can simultaneously drive multiple antenna components 30 to move to extend or retract into the housing 10, thereby improving the driving efficiency. Fig. 9 , Fig. 9 Shown Figure 1A cross-sectional view along the II-II direction of the wireless data terminal 100 of the illustrated embodiment. There are four antenna assemblies 30 and four racks 423. The four racks 423 are respectively engaged with different positions of the same gear 421. When the gear 421 rotates, the four racks 423 can be driven to move at the same time, thereby driving the four antenna assemblies 30 connected to the four racks 423 to extend or be retracted into the housing 10 at the same time, thereby improving the driving efficiency. In addition, multiple antenna assemblies 30 can be driven to move at the same time by one motor and one gear 421, which can simplify the internal structure of the wireless data terminal 100, simplify the assembly process, and improve production efficiency. In this embodiment, since the four racks 423 are engaged with different positions of the same gear 421, in this embodiment, the four antenna assemblies 30 move the same distance in the same time.

[0084] In some embodiments of the present application, the rack 423 connected to the antenna component 30A and the rack 423 connected to the antenna component 30C are located in the same plane and are arranged in parallel; the rack 423 connected to the antenna component 30B and the rack 423 connected to the antenna component 30D are located in the same plane and are arranged in parallel. Among them, the rack 423 connected to the antenna component 30A and the rack 423 connected to the antenna component 30B are arranged vertically. Therefore, in this embodiment, the movement directions of the two adjacent antenna components 30 are perpendicular. When the adjacent antenna components 30 are extended and retracted relative to the housing 10, the distance between the adjacent radiators 322 changes the most. Please refer to Fig. 9 and Fig.10 , Fig.10 Shown Figure 1Schematic diagram of the meshing structure of part of the rack 423 and the gear 422 of the wireless data terminal 100 shown. In this embodiment, a notch 3131 is provided on the third frame 313 of the antenna bracket 31, and the rack 423 corresponding to another antenna assembly 30 symmetrically arranged with the antenna assembly 30 can extend into the antenna bracket 31 through the notch 3131, so as to ensure that when the wireless data terminal 100 is in the first state, the multiple antenna assemblies 30 can be retracted to the maximum extent, thereby reducing the volume occupied by the wireless data terminal 100. For example, in this embodiment, when the wireless data terminal 100 is in the first state, the rack 423 connected to the antenna assembly 30A can pass through the notch 3131 on the third frame 313 of the antenna assembly 30C, and the rack 423 connected to the antenna assembly 30C can pass through the notch 3131 on the third frame 313 of the antenna assembly 30A; the rack 423 connected to the antenna assembly 30B can pass through the notch 3131 on the third frame 313 of the antenna assembly 30D, and the rack 423 connected to the antenna assembly 30D can pass through the notch 3131 on the third frame 313 of the antenna assembly 30B. In some embodiments, when the wireless data terminal 100 is in the first state, the end of the rack 423 away from the antenna assembly 30 to which it is connected passes through the notch 313 on the third frame 313 of another antenna assembly 30 and contacts the motherboard 20 of the other antenna assembly 30. At this time, the length of the antenna assembly 30 extending out of the housing 10 is at most the distance from the motherboard 20 to the gear 421. The distance from the bottom wall 331 of the antenna housing 33 to its opening is greater than or equal to the distance from the end of the rack 423 away from the antenna assembly 30 to the gear 421, so as to ensure that when the antenna assembly 30 extends out of the housing 10 to the maximum extent, the antenna housing 33 is at least partially located inside the housing 10, ensuring that the wireless data terminal 100 can have a good appearance. It is understandable that in some other embodiments, when the wireless data terminal 100 is in the first state, there is a gap between the end of the rack 423 away from the antenna assembly 30 to which it is connected and the mainboard 20.

[0085] In the process of gradually putting the antenna assembly 30 into the housing 10, the meshing position of the rack 423 and the gear 421 gradually approaches the antenna assembly 30. In the process of gradually extending the antenna assembly 30 out of the housing 10, the distance between the antenna bodies 32 gradually increases, and the isolation between the antennas gradually increases. In the present application, the degree of extending the antenna assembly 30 out of the housing 10 can be adjusted according to actual needs, ensuring that the isolation between the antennas meets the requirements while minimizing the volume of the wireless data terminal 100.

[0086] In some embodiments of the present application, the driving component 40 can drive the extension and retraction of each antenna component 30 relative to the housing 10. For example, in some embodiments, the driving part 41 includes a plurality of motors, and the transmission part 42 includes a plurality of gears 421 and a plurality of racks 423. Each of the motors is connected to at least one of the gears 421, and each of the gears 421 is meshed with at least one of the racks 423. One end of each of the racks 421 is fixed to one of the antenna components 40. Different motors can drive different antenna components 30 to move relative to the housing 10. For example, a wireless data terminal 100 according to another embodiment of the present application, which is Figure 4 The difference between the illustrated embodiments is that the motor and gear 421 of the present embodiment are both two. Among them, one gear 421 is connected to one electrode. The rack 423 connected to the antenna assembly 30A and the rack 423 connected to the antenna assembly 30C are meshed with one of the gears 421, and the rack 423 connected to the antenna assembly 30B and the rack 423 of the antenna assembly 30D are meshed with the other gear 421. In some states, only the antenna assembly 30A and the antenna assembly 30C can be driven to extend and retract relative to the housing 10, or only the antenna assembly 30B and the antenna assembly 30D can be driven to extend and retract relative to the housing 10.

[0087] Please review Figure 3 and Figure 4 In some embodiments, the wireless data terminal 10 further includes a supporting bracket 50, and the supporting bracket 50 is used to support the driving component 40 and the antenna component 30. The supporting bracket 50 is fixed in the housing 10. A through hole 51 and a plurality of grooves 52 are provided on the supporting bracket 50. The supporting bracket 50 includes a first surface 50a, a second surface 50b, and a side surface 50c connected between the first surface 50a and the second surface 50b. The first surface 50a faces the top shell 13, and the second surface 50b faces the bottom shell 12. The groove 52 is formed from the first surface 50a to the second surface 50b. One end of the plurality of grooves 52 is connected to the through hole 51, and the other end extends to the side surface 50c to form an opening 521 on the side surface 50c. The opening 521 is directly opposite to the through hole 114 on the housing 10.

[0088] The grooves 52 correspond to the antenna components 30 one by one, and the antenna components 30 are arranged in the corresponding grooves 52. The gear 421 and the gear shaft 422 of the driving component 40 are arranged in the through hole 51, one end of the rack 423 is meshed with the gear 421, and the other end extends into the groove 52 and is connected to the corresponding antenna component 30. The extension direction of the groove 52 is the same as the movement direction of the corresponding antenna component 30. When the antenna component 30 is extended or retracted into the housing 10, the antenna component 30 can move along the extension direction of the groove 52, thereby ensuring that the movement process of the antenna component 30 is smooth.

[0089] In some embodiments, the drive assembly 40 may also be other structures. Fig.11 , Fig.11 Shown is a cross-sectional view along the II-II direction of a wireless data terminal 100 of another embodiment of the present application. In this embodiment, the driving component 40 includes a plurality of first magnetic components 43 and a plurality of second magnetic components 44 corresponding to the plurality of first magnetic components 43, each of the second magnetic components 44 being fixed to one end of the antenna component 30 away from the outer side of the housing 10, and the first magnetic component 43 is located on the side of the corresponding second magnetic component 44 away from the antenna component 30 where the second magnetic component 44 is located. Among them, the first magnetic component 43 can be an electromagnet, and the second magnetic component 44 can be a permanent magnet or an iron block. In this embodiment, the second magnetic component 44 is a permanent magnet. The driving component 40 also includes a fixing frame 45, and the plurality of first magnetic components 43 are all fixed to the fixing frame 45 to carry the first magnetic components 43 through the fixing frame 45.

[0090] The first magnetic member 43 includes a first state and a second state. When the first magnetic member 43 is in the first state, the first magnetic member 43 attracts the corresponding second magnetic member 44; when the first magnetic member 43 is in the second state, the first magnetic member 43 repels the corresponding second magnetic member 44. Specifically, the first magnetic member 43 is in the first state, that is, after the electromagnet is energized, the magnetic pole of one end facing the second magnetic member 44 is opposite to the magnetic pole of the second magnetic member 44 facing one end of the first magnetic member 43, so that the first magnetic member 43 can attract the corresponding second magnetic member 44, and the second magnetic member 44 approaches the first magnetic member 43. The second magnetic member 44 approaches the first magnetic member 43 and drives the antenna assembly 30 to retract relative to the housing 10; the first magnetic member 43 is in the second state, that is, after the electromagnet is energized, the magnetic pole of one end facing the second magnetic member 44 is in the same direction as the magnetic pole of the second magnetic member 44 facing one end of the first magnetic member 43, so that the first magnetic member 43 repels the corresponding second magnetic member 44, and the second magnetic member 44 moves away from the first magnetic member 43. The second magnetic member 44 moves away from the first magnetic member 43 and drives the antenna assembly 30 to extend relative to the housing 10. In this embodiment, the extension and retraction of the antenna assembly 30 is achieved by the mutual attraction and repulsion between the first magnetic member 43 and the second magnetic member 44, which has a simple structure and low energy consumption.

[0091] In some embodiments, a limiting protrusion 333 is provided on the antenna housing 33 of the antenna assembly 30, and the limiting protrusion 333 is located on the side of the side wall 332 away from the bottom wall 331. When the antenna assembly 30 is extended to the maximum extent relative to the housing 33, the limiting protrusion 333 abuts against the edge of the through hole 114 of the housing 10 and contacts the inner wall of the housing 10, thereby preventing the antenna assembly 30 from being separated from the housing 10 under the action of the repulsive force between the first magnetic attraction member 43 and the second magnetic attraction member 44.

[0092] See also Fig.12 , Fig.12 FIG. 1 is a cross-sectional view of a wireless data terminal 100 along the II-II direction according to another embodiment of the present application. Fig.10 The difference between the illustrated embodiments is that the second magnetic member 44 is an iron block, and an elastic member 46 such as a spring or elastic foam is connected between the first magnetic member 43 and the second magnetic member 44. When the elastic member 46 is in a naturally stretched state, the second magnetic member 44 is away from the first magnetic member 43, and the antenna assembly 30 extends relative to the housing 10. In this embodiment, the first state of the first magnetic member 43 is a state in which the first magnetic member 43 is powered on and has electromagnetic properties. At this time, the first magnetic member 43 can attract the second magnetic member 44, and the second magnetic member 44 approaches the first magnetic member 43 to drive the antenna assembly 30 to contract relative to the housing 10; the second state of the first magnetic member 43 is a state in which the first magnetic member 43 is powered off and has no electromagnetic properties. At this time, there is no magnetic force between the first magnetic member 43 and the second magnetic member 44, and the second magnetic member 44 is away from the first magnetic member 43 under the elastic force of the elastic member 4645, and the second magnetic member 44 is away from the first magnetic member 43 to drive the antenna assembly 30 to extend relative to the housing 10.

[0093] Alternatively, in some embodiments, the driving component 40 includes a spring. One end of the spring is connected to the antenna housing 33 of the antenna assembly 30, and the other end is fixed in the housing 10. A first fixing portion is provided on the housing 10, and a second fixing portion is provided on the antenna housing 33. In a natural state, the spring is in a naturally extended state, at which time, the antenna assembly 30 extends out of the housing 10 under the push of the spring. When the antenna assembly 30 needs to be put into the housing 10, the antenna assembly 30 is pressed to put the spring in a contracted state, and the first fixing portion and the second fixing portion are snap-fitted or magnetically fixed, so that the antenna assembly 30 is put into the housing 10. In this embodiment, the driving component 40 does not include the driving portion 41, thereby saving energy. In addition, the driving component 40 has a simple structure, the volume of the wireless data terminal 100 can be smaller, and its assembly process can also be simpler.

[0094] In the embodiment of the present application, the driving component 40 drives the antenna component 30 to extend or retract into the housing 10, that is, when the wireless data terminal 100 is not needed or when a large isolation between antennas is not needed (such as when a small signal coverage range is required), the antenna component 30 can be driven to retract to the first position, thereby reducing the volume occupied by the wireless data terminal 100, and the wireless data terminal 100 has a good appearance. When a large isolation between antennas is required (such as when a small signal coverage range is required), the antenna component 30 can be driven to extend out of the housing 10 in different directions. At this time, when multiple antenna components 30 extend out of the housing 10, the distance between the antennas increases, meeting the isolation requirements between the antennas.

[0095] See also Fig.13 , Fig.13 The figure shows a schematic diagram of the internal modules of the wireless data terminal 100 of some embodiments of the present application. In the embodiment of the present application, the wireless data terminal 100 also includes a processor 101, and the RF front-end circuit 201 and the driving component 40 of the wireless data terminal 100 are connected to the processor 101. In the embodiment of the present application, the RF front-end circuit 201 is connected to the radiator 322. The radiator 322 can receive a control signal and transmit it to the RF front-end circuit 201; the RF front-end circuit 201 processes the control signal and transmits it to the processor 101; the processor responds to the control signal to send a control instruction to the driving component 40; the driving component responds to the control instruction to drive the antenna component 40 to extend and retract relative to the housing 10, thereby adjusting the isolation between the antennas.

[0096] In some implementations, the wireless data terminal 100 further includes a WAN (Wide Area Network) interface 102, a LAN (Local Area Network) interface 103, and a power circuit 104. The WAN interface 102 is an external network interface for connecting to an external network; the LAN interface 1005 is an internal network interface for connecting to a terminal device such as a computer; and the power circuit 104 is used to provide power to components such as the processor 101. The WAN interface 102, the LAN interface 103, and the power circuit 104 are all connected to the processor 101. In some implementations, the processor 101, the WAN interface 102, the LAN interface 103, and the power circuit 104 can all be disposed on the mainboard 20.

[0097] In some implementations, the wireless data terminal 100 further includes a network configuration parameter sending module 105, which is connected to the processor 101. The network configuration parameter sending module 105 is used to send network configuration parameters such as SSID (Service Set Identifier) ​​and password to achieve communication connection between the wireless data terminal 100 and the control terminal. In some implementations of the present application, the network configuration parameter sending module 105 can be a short-range wireless transmission module. For example, the network configuration parameter sending module 105 can be a short-range wireless transmission module such as an infrared transmitter, a light wave transmitter, a sound wave transmitter, a Bluetooth module, a wireless local area network 802.11 (Wi-Fi) module, an NFC (Near Field Communication) module, etc. In this implementation, the network configuration parameter sending module 105 is a Wi-Fi module, and the network configuration parameter sending module 105 is connected to the RF front-end circuit 201, and can send network configuration parameters through the RF front-end circuit 201 and the radiator 322 to achieve communication connection between the wireless data terminal 100 and the control terminal. In some implementations, the wireless data terminal 100 further includes a memory, which is connected to the processor 101 and is used to store data. In some implementations, the network configuration parameter sending module 105 is connected to the memory, and the network configuration parameters set by the user through the control interface are processed by the processor 101 and stored in the memory, and the network configuration parameter sending module 105 obtains the network configuration parameters from the memory and sends them out.

[0098] This application also provides a wireless data terminal control system. Fig.14 , Fig.14 Schematic diagram of the structure of the wireless data terminal control system. The control system includes a wireless data terminal 100 and a control terminal 200 that is connected to the wireless data terminal 100 for communication. The control terminal 200 can control the antenna unit 30 of the wireless data terminal 100 to extend and retract relative to the housing 10. The control terminal 200 can be a mobile phone, tablet, computer or other terminal. Fig.15 , Fig.15 The figure shows a functional module structure diagram of the control terminal 200. The control terminal 200 includes a terminal processor 202 and a transceiver (transmitter and / or receiver, T / R) 203 connected to the terminal processor 202. The terminal processor is used to respond to the user's operation instruction to send the control signal via the transceiver, thereby controlling the antenna assembly 30 of the wireless data terminal 100 to extend and retract relative to the housing 10.

[0099] In some implementations, the control terminal 200 further includes a network configuration parameter receiving module 204 and a terminal power circuit 205. The terminal power circuit 205 and the network configuration parameter receiving module 204 are used to receive the network configuration parameters sent by the wireless data terminal 100. The network configuration parameter receiving module 204 is a signal transmission module that matches the network configuration parameter sending module 105 of the wireless data terminal 100. For example, in some implementations of the present application, the network configuration parameter sending module 105 and the network configuration parameter receiving module 204 are both Wi-Fi modules. In this implementation, the network configuration parameter sending module 105 is a Wi-Fi module, and the network configuration parameter receiving module 204 is connected to the transceiver 202, and can receive the network configuration parameters through the transceiver 202 to achieve communication between the wireless data terminal 100 and the control terminal.

[0100] In the present application, controlling the antenna unit 30 of the wireless data terminal 100 to extend and retract relative to the housing 10 by the control terminal 200 specifically includes:

[0101] Step 1: Establish a communication connection between the control terminal 200 and the wireless data terminal 100.

[0102] Open the operation interface on the control terminal 200 corresponding to the network configuration operation of the wireless data terminal 100, perform the corresponding network configuration operation based on the operation interface, obtain the network configuration parameters such as SSID and password sent by the corresponding wireless data terminal 100, and connect to the wireless data terminal 100 according to the network configuration parameters such as SSID and password.

[0103] Step 2: Open the application (APP) corresponding to the control of the wireless data terminal 100 on the control terminal 200, and control the operation interface of the application according to the demand, so as to control the antenna unit 30 of the wireless data terminal 100 to retract relative to the housing 10.

[0104] See also Fig.16 , Fig.16 The control method of the wireless data terminal 100 is shown as a flow chart. The control method of the wireless data terminal 100 specifically includes the following steps:

[0105] S1. Control application program operation interface. The terminal processor 202 responds to the user's operation instruction to send a control signal via the transceiver 203.

[0106] For example, see Fig.17 , Fig.17The figure shows an operation interface diagram of the application program when controlling the antenna assembly 30 to extend relative to the housing 10 in one embodiment of the present application. When the radio frequency signal strength of the wireless data terminal 100 is poor and the antenna assembly 30 needs to be driven to extend relative to the housing 10, click "enhanced mode" on the application program operation interface, and at this time, the terminal processor 202 responds to the user's operation instruction to send a first control signal via the transceiver 203.

[0107] See also Fig.18 , Fig.18 Shown Fig.17 The operation interface diagram of the application program when the antenna assembly 30 is controlled to retract relative to the housing 10 in the illustrated embodiment. When the radio frequency signal strength of the wireless data terminal 100 is good, it is desired to reduce the occupied volume of the wireless data terminal 100 or to realize the complete appearance of the wireless data terminal 100, and it is necessary to drive the antenna assembly 30 to retract relative to the housing 10, click "standard mode" or "sleep mode", at which time, the wireless data terminal 100 is in the standard state or the sleep state, and at this time, the terminal processor 202 responds to the user's operation instruction to send a second control signal via the transceiver 203.

[0108] S2 . The radiator 322 of the wireless data terminal 100 receives the control signal and transmits it to the RF front-end circuit 201 .

[0109] S3 . The RF front-end circuit 201 processes the control signal and transmits the control signal to the processor 101 of the wireless data terminal 100 .

[0110] S4. The processor 101 responds to the control signal to send a control instruction to the driving component 40.

[0111] When the control signal received by the wireless data terminal 100 is a first control signal, the processor 101 responds to the first control signal to send a first control instruction to the drive component 40; when the control signal received by the wireless data terminal 100 is a second control signal, the processor 101 responds to the second control signal to send a second control instruction to the drive component 40.

[0112] S5. The driving component 40 responds to the control instruction to drive the antenna component 30 to extend and retract relative to the housing.

[0113] When the wireless data terminal 100 sends a first control instruction to the driving component 40, the driving component 40 drives the antenna component 30 to extend relative to the housing 10, and the distance between the antenna components 30 increases, thereby increasing the isolation between the antennas of the wireless data terminal 100, reducing the interference of signals between the antennas, thereby improving the signal strength of the wireless data terminal 100, thereby improving the strength of the radio frequency signal of the wireless data terminal 100; when the wireless data terminal 100 sends a second control instruction to the driving component 40, the driving component 40 drives the antenna component 30 to shrink relative to the housing 10, and the distance between the antenna components 30 decreases, thereby reducing the occupied volume of the wireless data terminal 100. When the antenna component 30 is completely retracted into the housing 10, the wireless data terminal 100 has a complete appearance.

[0114] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application; in the absence of conflict, the implementation methods of the present application and the features in the implementation methods can be combined with each other. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A wireless data terminal, characterized in that: It comprises a housing, a driving component, a first antenna component, a second antenna component and a bearing bracket, wherein the driving component is accommodated in the housing, and the driving component is used to drive the first antenna component and the second antenna component to telescopically move in different directions between a first position and a second position, wherein the first position is a position where the antenna component is retracted to the maximum extent relative to the housing, and the second position is a position where the antenna component is extended out of the housing to the maximum extent, and the antenna component comprises the first antenna component and the second antenna component; The first antenna assembly includes a first radiator, the second antenna assembly includes a second radiator, the first radiator and the second radiator are used to transmit radio frequency signals, and a distance between the first radiator and the second radiator at the first position is smaller than a distance between the first radiator and the second radiator at the second position; Wherein, the driving assembly includes a motor, a gear and a plurality of racks, the motor is connected to the gear, one end of each of the racks is fixed to the first antenna assembly or the second antenna assembly, the rack is meshed with the gear, different racks have different extension directions, and the extension direction of the rack is the direction from one end of the rack away from the first antenna assembly or the second antenna assembly to one end of the rack connected to the first antenna assembly or the second antenna assembly; The supporting bracket is accommodated in the outer shell, and the driving component and the first antenna component and the second antenna component are all arranged on the supporting bracket; the supporting bracket includes a plurality of grooves, and the plurality of grooves correspond to the first antenna component and the second antenna component one by one, and the extension direction of the groove is the same as the movement direction of the corresponding first antenna component or the second antenna component, and the extension direction of the groove is the direction from one end of the groove away from the outer side of the outer shell to one end of the groove close to the outer side of the outer shell, and the first antenna component and the second antenna component are at least partially accommodated in the groove and extend and retract along the groove.

2. The wireless data terminal according to claim 1, characterized in that: The operating frequency band of the first antenna assembly is different from the operating frequency band of the second antenna assembly; There are at least two first antenna components, and the center of a pattern formed by the projections of at least two first antenna components on a reference plane is a first center. The first center is located on the central axis of the housing, and an angle α1 formed by the projections of two adjacent first antenna components on the reference plane and a line connecting the first centers satisfies the relationship: α1=360° / N, wherein N is the number of the first antenna components, and the reference plane is perpendicular to the central axis of the housing.

3. The wireless data terminal according to claim 2, characterized in that: There are at least two second antenna components, the center of a pattern formed by the projections of at least two second antenna components on the reference plane is a second center, the second center is located on the central axis of the housing, and the angle α2 formed by the projections of two adjacent second antenna components on the reference plane and the line connecting the second center satisfies the relationship: α2=360° / M, where M is the number of the second antenna components.

4. The wireless data terminal according to claim 3, characterized in that: The number of the first antenna components is the same as the number of the second antenna components, the first antenna components and the second antenna components are arranged alternately, and the distance from any first antenna component to two adjacent second antenna components is the same.

5. The wireless data terminal according to claim 4, characterized in that: The number of the first antenna components and the number of the second antenna components are both two, the two first antenna components are symmetrically arranged relative to the central axis of the shell, the two second antenna components are symmetrically arranged relative to the central axis of the shell, and the line connecting the two first antenna components is perpendicular to the line connecting the two second antenna components.

6. The wireless data terminal according to claim 1, characterized in that: The housing comprises a tubular main shell, the main shell is provided with a plurality of through holes, the plurality of through holes are arranged at intervals along the circumference of the main shell, and each of the through holes communicates with the inner side and the outer side of the main shell; The driving component is located on the inner side of the main housing, and is used to drive the first antenna component and the second antenna component to extend and retract relative to each other through the plurality of through holes in a one-to-one correspondence.

7. The wireless data terminal according to claim 1, characterized in that: The number of the motor and the number of the gear are both one, and different racks are meshed with different positions of the gear.

8. The wireless data terminal according to claim 1, characterized in that: There are multiple motors and multiple gears, each motor is connected to at least one gear, and each gear is meshed and connected to at least one rack.

9. The wireless data terminal according to claim 1, characterized in that: The first antenna assembly includes a first antenna bracket and a first antenna body, the first radiator is arranged on the first antenna body, and the first antenna body is installed on the side of the first antenna bracket away from the central axis of the shell; the second antenna assembly includes a second antenna bracket and a second antenna body, the second radiator is arranged on the second antenna body, and the second antenna body is installed on the side of the second antenna bracket away from the central axis of the shell.

10. The wireless data terminal according to claim 9, characterized in that: The first antenna body and the second antenna body are both parallel to the central axis of the housing.

11. The wireless data terminal according to claim 9, characterized in that: The first antenna assembly further comprises a first antenna housing, wherein the first antenna bracket and the first antenna body are both accommodated in the first antenna housing; the first antenna housing comprises a first bottom wall and a first side wall surrounding the edge of the first bottom wall, and the first antenna assembly is in the first position, and an outer surface of the first bottom wall is coplanar with an outer surface of the housing; The second antenna assembly also includes a second antenna shell, and the second antenna bracket and the second antenna body are both accommodated in the second antenna shell; the second antenna shell includes a second bottom wall and a second side wall surrounding the edge of the second bottom wall, the second antenna assembly is in the first position, and the outer surface of the second bottom wall is coplanar with the outer surface of the shell.

12. The wireless data terminal according to claim 11, characterized in that: The wireless data terminal also includes a mainboard and a feeder line, the mainboard includes a radio frequency front-end circuit, and the feeder line is electrically connected to the radio frequency front-end circuit and the radiator; the first antenna bracket and the second antenna bracket are both provided with fixings, and the fixings are used to fix the feeder line to the first antenna bracket or the second antenna bracket.

13. A wireless data terminal, characterized in that: It comprises a housing, a driving component, a first antenna component, a second antenna component and a bearing bracket, wherein the driving component is accommodated in the housing, and the driving component is used to drive the first antenna component and the second antenna component to telescopically move in different directions between a first position and a second position, wherein the first position is a position where the antenna component is retracted to the maximum extent relative to the housing, and the second position is a position where the antenna component is extended out of the housing to the maximum extent, and the antenna component comprises the first antenna component and the second antenna component; The first antenna assembly includes a first radiator, the second antenna assembly includes a second radiator, the first radiator and the second radiator are used to transmit radio frequency signals, and a distance between the first radiator and the second radiator at the first position is smaller than a distance between the first radiator and the second radiator at the second position; Wherein, the driving component includes a plurality of first magnetic members and a plurality of second magnetic members corresponding to the plurality of first magnetic members one by one, each of the second magnetic members is fixed to an end of the first antenna component or the second antenna component away from the outer side of the housing, and the first magnetic member is located on a side of the corresponding second magnetic member away from the outer side of the housing; The first magnetic member includes a first state and a second state. When the first magnetic member is in the first state, the first magnetic member attracts the corresponding second magnetic member; when the first magnetic member is in the second state, the first magnetic member repels the corresponding second magnetic member. The supporting bracket is accommodated in the outer shell, and the driving component and the first antenna component and the second antenna component are all arranged on the supporting bracket; the supporting bracket includes a plurality of grooves, and the plurality of grooves correspond to the first antenna component and the second antenna component one by one, and the extension direction of the groove is the same as the movement direction of the corresponding first antenna component or the second antenna component, and the extension direction of the groove is the direction from one end of the groove away from the outer side of the outer shell to one end of the groove close to the outer side of the outer shell, and the first antenna component and the second antenna component are at least partially accommodated in the groove and extend and retract along the groove.

14. The wireless data terminal according to any one of claims 1 to 13, characterized in that: The wireless data terminal further includes a processor and a radio frequency front-end circuit, wherein the radio frequency front-end circuit and the driving component are both connected to the processor, and the radio frequency front-end circuit is connected to the first radiator and the second radiator; The first radiator and the second radiator are used to receive control signals and transmit them to the RF front-end circuit; The RF front-end circuit is used to process the control signal and transmit it to the processor; The processor is used to respond to the control signal to send a control instruction to the drive component; The driving component is used to respond to the control instruction to drive the first antenna component and the second antenna component to extend and retract relative to the housing.

15. A wireless data terminal control system, characterized in that: comprising a control terminal and the wireless data terminal according to claim 14; The control terminal includes a terminal processor and a transceiver, and the terminal processor is connected to the transceiver; The terminal processor is used to respond to the user's operation instruction to send the control signal via the transceiver.

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