Antenna device

Abstract

The utility model provides an antenna device, and belongs to the technical field of antennas. The antenna device comprises a base, an antenna cover, an antenna assembly and a radiator, the antenna cover comprises a top cover and a first side wall connected to the edge of the top cover, and the first side wall is connected with the base to form a closed space for accommodating the antenna assembly; the radiator is arranged in the closed space and located on the side, away from the base, of the antenna assembly. The radiator is used for achieving air flow in the closed space in the open state and conducting heat generated by the antenna assembly to the base.

Description

Technical Field

[0001] The present disclosure belongs to the field of antenna technology, and particularly relates to an antenna device. Background Art

[0002] The radome is a structural component that protects the antenna assembly from the influence of the external environment. The radome must have good electromagnetic wave penetration characteristics and mechanical properties that can withstand the effects of the external harsh environment. In particular, when the antenna device is subjected to extremely severe weather, such as direct attacks by natural storms, ice and snow, dust, and solar radiation, it is easy to cause the antenna to reduce accuracy, shorten life, and poor working reliability.

[0003] Therefore, how to ensure that the antenna device has good radiation characteristics while being able to withstand the impact of harsh external environments is an urgent problem to be solved in the antenna field. Utility Model Content

[0004] The present disclosure aims to solve at least one of the technical problems existing in the prior art and provide an antenna device.

[0005] In a first aspect, the technical solution adopted to solve the technical problem of the present disclosure is an antenna device, including a base, a radome, an antenna assembly and a radiator;

[0006] The antenna cover comprises a top cover and a first side wall connected to the edge of the top cover, wherein the first side wall is connected to the base to form a closed space for accommodating the antenna assembly;

[0007] The heat sink is arranged in the enclosed space and is located at a side of the antenna assembly away from the base; when the heat sink is in an open state, it is used to realize air flow in the enclosed space and conduct the heat generated by the antenna assembly to the base.

[0008] In some embodiments, the antenna device further comprises a plurality of heat dissipation fins;

[0009] The plurality of heat dissipation fins are arranged on a first outer surface of the base close to the closed space; and a first plane where the heat dissipation fins are located is arranged to intersect with the first outer surface of the base.

[0010] In some embodiments, the plurality of heat dissipation fins are parallel to each other.

[0011] In some embodiments, the heat dissipation fins are connected to the base as an integral structure.

[0012] In some embodiments, the heat sink is a fan.

[0013] In some embodiments, the antenna assembly includes a plurality of boards; a portion of the plurality of boards is recorded as a first board, and another portion is recorded as a second board;

[0014] The first board is attached to the inner surface of the base close to the closed space; the second board is arranged between the first board and the heat sink, and the extension surface of the second plane where the second board is located is arranged to intersect with the inner surface.

[0015] In some embodiments, the first board includes a first main body structure and a first heat generating chip disposed on the first main body structure, and the first heat generating chip is located between the first main body structure and the base.

[0016] In some embodiments, the antenna device further comprises a shielding assembly; the shielding assembly comprises a plurality of first shielding plates; the plurality of first shielding plates are arranged in the closed space, and the plurality of first shielding plates are sequentially connected into a ring structure to form a shielded inner space;

[0017] The heat sink and the second board are both located in the shielding inner space.

[0018] In some embodiments, the shielding assembly further includes a plurality of second shielding plates; the plurality of second shielding plates are disposed in the enclosed space;

[0019] Any second shielding plate is connected to the joint of two adjacent first shielding plates and extends to a side away from the shielding inner space; different second shielding plates have different connection positions.

[0020] In some embodiments, the first side wall includes a plurality of openings; the shielding assembly further includes a plurality of second shielding plates;

[0021] Any second shielding plate is connected to the joint of two adjacent first shielding plates, extends along a side away from the shielding inner space, and protrudes through the opening to a second outer surface of the first side wall away from the closed space.

[0022] In some embodiments, a sealing structure is disposed between the second shielding plate and a second side wall of the opening passing therethrough.

[0023] In some embodiments, the antenna device also includes a bracket located in the enclosed space, and the bracket is fixed on the base; the radiator is fixed to an end of the bracket away from the base, and the second board is arranged between the first board and the radiator and fixed on the bracket.

[0024] In some embodiments, the second board is attached to a surface of the first shielding plate close to the shielding inner space.

[0025] In some embodiments, the shielding assembly further includes two third shielding plates, one of which is connected to one end of the plurality of first shielding plates close to the top cover, and the other is connected to one end of the plurality of first shielding plates close to the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A cross-sectional view of a vertical reference plane of an antenna device provided in an embodiment of the present disclosure;

[0027] Figure 2 A cross-sectional view of a horizontal reference plane of an antenna device provided in an embodiment of the present disclosure;

[0028] Figure 3 A physical cross-sectional view of a vertical reference plane of an antenna device provided in an embodiment of the present disclosure;

[0029] Figure 4 A physical cross-sectional view of a horizontal reference plane of an antenna device provided in an embodiment of the present disclosure;

[0030] Figure 5 A schematic diagram of a heat dissipation fin provided in an embodiment of the present disclosure;

[0031] Figure 6 A schematic diagram of airflow conditions in a closed space when a fan is running according to an embodiment of the present disclosure;

[0032] Figure 7 A schematic diagram of the temperature condition of a closed space when a fan is running according to an embodiment of the present disclosure;

[0033] Figure 8 A schematic diagram of the temperature condition of a closed space when the fan provided in an embodiment of the present disclosure is not working;

[0034] Fig. 9 A physical cross-sectional view of a vertical reference plane of another antenna device provided in an embodiment of the present disclosure;

[0035] Fig.10 A physical cross-sectional view of a horizontal reference plane of another antenna device provided in an embodiment of the present disclosure;

[0036] Fig.11 A cross-sectional view of a vertical reference plane of another antenna device provided by an embodiment of the present disclosure;

[0037] Fig.12 A cross-sectional view of a horizontal reference plane of another antenna device provided by an embodiment of the present disclosure;

[0038] Fig.13 A horizontal cross-sectional view of another antenna device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The components of the embodiments of the present disclosure generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present disclosure provided in the drawings is not intended to limit the scope of the present disclosure for protection, but merely represents the selected embodiments of the present disclosure. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present disclosure.

[0040] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, similar words such as "one", "one" or "the" do not indicate quantity restrictions, but indicate that there is at least one. Similar words such as "include" or "comprise" mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Similar words such as "connect" or "connected" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The "multiple or several" mentioned in this disclosure refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0042] In the related art, during the use of traditional antenna covers, the antenna components are generally waterproof and dustproof to prevent them from being affected by the external environment. However, when the antenna components are sealed, the temperature of the enclosed space in the antenna cover will rise. If the heat in the antenna components cannot be dissipated in time, the temperature of the enclosed space will rise sharply. When the temperature is higher than the normal operating temperature of the antenna components, the performance and reliability of the antenna components will be affected.

[0043] In one case, a heat sink is provided outside the antenna cover. However, the existing heat sink arranged on the antenna cover is easy to shield part of the antenna signal, which is not conducive to electromagnetic wave radiation. In another case, a more complex heat sink structure is adopted, such as using thermal conductive patches, capillaries and condensing coils for heat dissipation, which is costly, and the arrangement of these components requires changing the original antenna device structure, which is complicated in process.

[0044] In view of this, embodiments of the present disclosure provide an antenna device that substantially eliminates one or more of the problems caused by limitations and defects of the related art.

[0045] Figure 1 A cross-sectional view of a vertical reference plane of an antenna device provided in an embodiment of the present disclosure, Figure 2 A cross-sectional view of a horizontal reference plane of an antenna device provided in an embodiment of the present disclosure, Figure 3 A physical cross-sectional view of a vertical reference plane of an antenna device provided in an embodiment of the present disclosure, Figure 4 A physical cross-sectional view of a horizontal reference plane of an antenna device provided in an embodiment of the present disclosure.

[0046] like Figure 1 to Figure 4 As shown, the antenna device includes a base 1, an antenna cover 2, an antenna assembly 3 and a radiator 4; the antenna cover 2 includes a top cover 21 and a first side wall 22 connected to the edge of the top cover 21, and the first side wall 22 is connected to the base 1 to form a closed space Q for accommodating the antenna assembly 3. The radiator 4 is arranged in the closed space Q and is located on the side of the antenna assembly 3 away from the base 1. In the open state, the radiator 4 is used to realize the air flow in the closed space Q, and to transfer the heat generated by the antenna assembly 3 to the base 1, and then dissipate the heat to the outside world through the base 1, that is, outside the closed space Q. Optionally, the radiator 4 is a fan. When the fan is turned on, the air flow in the closed space Q transfers the heat through the atmospheric flow, thereby dissipating the heat of the concentrated heat source (such as the antenna assembly 3) and reducing the overall temperature of the closed space Q.

[0047] Exemplarily, the top cover 21 and the first side wall 22 are connected as an integral structure, and are sealed and connected to the base 1 to form a closed space Q. Exemplarily, the orthographic projection of the first side wall 22 on the base 1 is a circle, and the first side wall 22 is a cylindrical structure. Both the top cover 21 and the base 1 are circular structures.

[0048] For example, usually, the material of the antenna cover 2 is plastic or fiberglass, which has poor thermal conductivity. When the present disclosure selects such materials as the material of the antenna cover 2, the heat in the closed space Q is mainly conducted away through the base 1.

[0049] Of course, if the material of the antenna cover 2 is a material with good thermal conductivity similar to the base 1, then the radiator 4 can realize air flow in the closed space Q when it is in the open state, and the heat generated by the antenna assembly 3 can be transferred to the base 1 and the antenna cover 2, and then dissipated to the outside through the base 1 and the antenna cover 2.

[0050] The embodiment of the present disclosure realizes heat circulation in the closed space Q by setting a radiator 4 inside, that is, dispersing the heat of the concentrated heat source (such as the antenna component 3), and further extracting the heat of the closed space Q through the base 1, which can effectively reduce the overall temperature of the closed space Q, realize efficient heat dissipation of the antenna component 3, and ensure the performance and reliability of the antenna component 3.

[0051] In some embodiments, Figure 1 to Figure 4 As shown, the antenna device further includes a plurality of heat dissipation fins 5; the plurality of heat dissipation fins 5 are arranged on the first outer surface S1 of the base 1 close to the closed space Q. The heat sink 4 is used to realize air flow in the closed space Q in the open state, and conduct the heat generated by the antenna assembly 3 to the base 1 and further to the heat dissipation fins 5, and then dissipate the heat to the outside, that is, outside the closed space Q, through the heat dissipation fins 5.

[0052] The heat sink 5 is a metal sheet with strong thermal conductivity. The heat sink fin 5 is connected to the first outer surface S1 of the base 1 close to the closed space Q. The heat dissipation surface of the base 1 is increased to improve the thermal conductivity, thereby effectively dissipating the heat conducted from the closed space Q to the base 1.

[0053] In this embodiment, the heat flow of the closed space Q is realized by arranging the heat sink 4 internally, that is, the heat of the concentrated heat source (such as the antenna assembly 3) is dispersed, and the heat of the closed space Q is further exported by arranging the heat sink 5 externally. The heat sink 4 and the heat sink fins 5 constitute a heat dissipation system, which reduces the overall temperature of the closed space Q, realizes efficient heat dissipation of the antenna assembly 3, and ensures the performance and reliability of the antenna assembly 3.

[0054] It should be noted that, outside the closed space Q, if the wind force in the external environment is relatively small, it is faster to directly use a flat and thin base 1 for heat conduction. If the wind force in the external environment is relatively large, multiple heat dissipation fins 5 are used to increase the heat dissipation surface of the base 1, which can improve the thermal conductivity compared to the solution of setting up the base 1 alone.

[0055] Figure 5 Schematic diagram of the heat dissipation fin 5 provided in the embodiment of the present disclosure. In some embodiments, as Figure 1 , Figure 3 and Figure 5 As shown, the first plane S2 where the heat dissipation fins 5 are located is arranged to intersect with the first outer surface S1 of the base 1. For example, the first plane S2 and the first outer surface S1 are perpendicular to each other.

[0056] Optionally, the heights of the heat dissipation fins 5 are the same. Exemplarily, the height of the heat dissipation fins 5 is between 1 mm and 30 mm. For example, the height of the heat dissipation fins 5 is 20 mm.

[0057] Alternatively, if Figure 5 As shown, a plurality of heat dissipation fins 5 are parallel to each other. Exemplarily, the spacing between adjacent heat dissipation fins 5 is between 5 mm and 20 mm. For example, the spacing between adjacent heat dissipation fins 5 is 10 mm. Exemplarily, the thickness of the heat dissipation fins 5 is between 2 mm and 8 mm. For example, the thickness of the heat dissipation fins 5 is 3 mm.

[0058] Optionally, the heat dissipation fins 5 and the base 1 are connected as an integral structure. Exemplarily, the materials of the heat dissipation fins 5 and the base 1 can be selected from metal materials and / or alloys with high thermal conductivity.

[0059] In some embodiments, Figure 1 and Figure 3 As shown, the antenna assembly 3 includes multiple boards; a part of the multiple boards is recorded as a first board 31, and the other part is recorded as a second board 32; the first board 31 is attached to the inner surface S3 of the base 1 close to the closed space Q, and the second board 32 is arranged between the first board 31 and the heat sink 4.

[0060] Exemplarily, the first board 31 includes two, respectively attached to different areas on the inner surface S3, with a certain distance between them, dispersing the heat source, which is conducive to rapid heat dissipation. The heat dissipation fins 5 are distributed in the area where the first board 31 is attached corresponding to the first outer surface S1.

[0061] Since the base 1 is not sufficient to fit all the boards, in addition to the first board 31 fitted to the base 1, the remaining second boards 32 can be fixed between the base 1 and the heat sink 4 by the bracket 6. Figure 3 and Figure 4 As shown, the antenna device further includes a bracket 6 located in the closed space Q, the bracket 6 is fixed on the base 1, and avoids the first board 31. The heat sink 4 is fixed to one end of the bracket 6 away from the base 1, and the second board 32 is arranged between the base 1 and the heat sink 4, and fixed on the bracket 6. The extension surface of the second plane S4 where the second board 32 is located is arranged to intersect with the inner surface S3 of the base 1. For example, the second plane S4 where the second board 32 is located is perpendicular to the inner surface S3. Such a layout can save the available space of the closed space Q, and facilitate air circulation when the fan is working.

[0062] For example, Figure 1 As shown, the bracket 6 and the base 1 can be detachably connected via a first connecting component 7. The first connecting component 7 includes but is not limited to screws and nuts.

[0063] For example, Figure 1 or Figure 3 As shown, the second board 32 includes two boards, which are arranged side by side along the first direction X with a certain distance between them to disperse the heat source and facilitate rapid heat dissipation. The first direction X is the thickness direction of the top cover 21 (or the base 1).

[0064] For example, Figure 4 As shown, the second board 32 includes two boards, which are arranged side by side along the second direction Y with a certain distance between them to disperse the heat source and facilitate rapid heat dissipation. The second direction Y is a direction perpendicular to the first direction X.

[0065] For example, Figure 3 and Figure 4 As shown, the second board cards 32 include four, which are divided into two groups arranged in parallel along the second direction Y, wherein each group includes two second board cards 32 arranged in parallel along the first direction X. There is a certain distance between any two adjacent second board cards 32 to disperse the heat source, which is conducive to rapid heat dissipation.

[0066] In some embodiments, Figure 1 and Figure 3 As shown, the first board 31 includes a first main structure 311 and a first heat generating chip 312 disposed on the first main structure 311, and the first heat generating chip 312 is located between the first main structure 311 and the base 1. The second board 32 includes a second main structure 321 and a second heat generating chip 322 disposed on the second main structure 321.

[0067] The first heating chip 312 and the second heating chip 322 are used to control the antenna to transmit and receive signals, and are the main heat sources on the board.

[0068] The first board 31 is attached to the inner surface S3 of the base 1, and the first heating chip 312 is located between the first main structure 311 and the base 1, that is, the first heating chip 312 is close to the inner surface S3. The heat generated by the first heating chip 312 can be smoothly conducted to the base 1, and is in contact with the outside air through the heat dissipation fins 5 on the first outer surface S1 of the base 1, and the heat on the base 1 is discharged by utilizing the flow of outside air.

[0069] Since the second board 32 and the base 1 are arranged in the air, the heat generated by the second heat generating chip 322 is difficult to be directly transferred to the base 1 . Figure 6 A schematic diagram of airflow conditions in a closed space when a fan is running according to an embodiment of the present disclosure; Figure 7 The schematic diagram of the temperature condition of the enclosed space when the fan is running is provided in the embodiment of the present disclosure, such as Figure 6 and Figure 7As shown, the "arrow" represents the velocity field. The present disclosure utilizes the rotation of the fan fins to drive the air flow in the closed space Q, so that the air in the closed space Q forms convection, thereby driving the heat flow in the closed space Q, dispersing the concentrated heat generated by the second heating chip 322, and preventing the second heating chip 322 from overheating and affecting the working performance; at the same time, the concentrated heat generated by the second heating chip 322 is dispersed, so that the temperature in the closed space Q is balanced, and the heat conducted to the base 1 by air convection will be further conducted to the outside through the heat dissipation fins 5 on the first outer surface S1, thereby reducing the overall temperature of the closed space Q and achieving efficient heat dissipation of the antenna component 3.

[0070] Figure 8 The schematic diagram of the temperature condition of the enclosed space when the fan is not working is provided in the embodiment of the present disclosure. Figure 8 As shown, when the antenna assembly 3 is working, the fan stops working. At this time, the air inside the closed space Q cannot circulate, and there is no air flow to take away the heat on the second heat generating chip 322. At this time, the temperature of the second board 32 exceeds 120°C. Figure 8 As shown, when the antenna assembly 3 is working, the fan is running, and the air in the closed space Q forms convection, and the air flow takes away the heat on the second heat generating chip 322, and the temperature of the second board 32 is stabilized at about 65° C. It can be seen that the operation of the fan effectively reduces the heat of the second board 32.

[0071] Of course, the above heat source only takes the main heat-generating chip as an example, and in fact, the fan realizes air flow and can take away the heat generated by any heat source on the antenna component 3. Therefore, the present disclosure does not specifically limit the heat source here.

[0072] In some embodiments, Figure 1 to Figure 4 As shown, the antenna device also includes a shielding component; the shielding component includes a plurality of first shielding plates 81; the plurality of first shielding plates 81 are arranged in a closed space Q, and the plurality of first shielding plates 81 are sequentially connected into a ring structure to form a shielding inner space M; the radiator 4 and the second board 32 are both located in the shielding inner space M to prevent the radiator 4 and the second board 32 and other devices in the shielding inner space M from interfering with the antenna radiation.

[0073] Optionally, the heat sink 4 and the second board 32 are arranged opposite to each other in the first direction X. Specifically, Figure 7 As shown, the fan rotates, driving the air to initially flow in a direction approximately parallel to the second plane S4 where the second board 32 is located, which is beneficial for removing the heat generated by the second board 32 .

[0074] The plurality of first shielding plates 81 includes six, and the six first shielding plates 81 are sequentially connected to form a hexagonal ring structure. Alternatively, the plurality of first shielding plates 81 includes eight, and the six first shielding plates 81 are sequentially connected to form an octagonal ring structure. To avoid complex installation, six first shielding plates 81 may be selected.

[0075] In some embodiments, Figure 1 to Figure 4 As shown, the shielding assembly also includes multiple second shielding plates 82; the multiple second shielding plates 82 are arranged in the closed space Q; any second shielding plate 82 is connected to the junction of two adjacent first shielding plates 81 and extends to a side away from the shielding inner space M; the connection positions of different second shielding plates 82 are different.

[0076] Optionally, the second shielding plate 82 may extend along a side away from the shielding inner space M until it abuts against the first side wall 22 .

[0077] Taking six first shielding plates 81 connected in sequence to form a hexagonal ring structure as an example, six second shielding plates 82 are respectively connected at the joints of two adjacent first shielding plates 81, and extend along the side away from the shielding inner space M to abut against the first side wall 22, forming six sub-shielding spaces M1 for accommodating antenna-related components.

[0078] Fig. 9 A physical cross-sectional view of a vertical reference plane of another antenna device provided in an embodiment of the present disclosure, Fig.10 A cross-sectional view of another horizontal reference plane of an antenna device provided in an embodiment of the present disclosure. Fig. 9 and Fig.10 As shown, the first side wall 22 includes a plurality of openings (not shown in the figure); the shielding assembly also includes a plurality of second shielding plates 82; any second shielding plate 82 is connected at the junction of two adjacent first shielding plates 81, and extends along a side away from the shielding inner space M, and protrudes through the opening to the second outer surface S5 of the first side wall 22 away from the enclosed space Q.

[0079] Specifically, each second shielding plate 82 includes a main shielding portion 821 and an extension portion 822 connected as an integral structure; wherein the main shielding portion 821 is mainly located in the closed space Q, the main shielding portion 821 is connected at the junction of two adjacent first shielding plates 81, and extends along the side away from the shielding inner space M to abut against the first side wall 22; the extension portion 822 is connected to one end of the main shielding portion 821 away from the shielding inner space M, and protrudes through the opening to the second outer surface S5 of the first side wall 22 away from the closed space Q.

[0080] like Fig.10As shown, taking six second shielding plates 82 as an example, the main shielding parts 821 of the six second shielding plates 82 are respectively connected to the joints of the two adjacent first shielding plates 81, and extend along the side away from the shielding inner space M to abut against the first side wall 22, forming six sub-shielding spaces M1 for accommodating antenna-related components.

[0081] A sealing structure (not shown in the figure) is arranged between the second shielding plate 82 and the second side wall of the opening passing therethrough. The sealing structure is, for example, a sealant, mainly used to seal the opening to prevent the antenna assembly 3 from being affected by the external environment.

[0082] In this embodiment, a portion of the second shielding plate 82 (ie, the extension portion 822 ) extends out of the antenna cover 2 to form convection heat dissipation with the outside air, thereby further reducing the temperature inside the closed space Q.

[0083] Fig.11 A cross-sectional view of a vertical reference plane of another antenna device provided in an embodiment of the present disclosure, Fig.12 A cross-sectional view of a horizontal reference plane of another antenna device provided in an embodiment of the present disclosure. Fig.11 and Fig.12 As shown, Fig. 9 and Fig.10 The difference is that the second board 32 is attached to the surface of the first shielding plate 81 close to the shielding inner space M, which is conducive to introducing the heat generated by the second board 32 into the first shielding plate 81. The heat dissipation area of ​​the first shielding plate 81 is larger, so the first shielding plate 81 is dissipated more quickly through the action of the fan. At the same time, the heat can also be introduced into the second shielding plate 82 through the first shielding plate 81, and the heat is dissipated by convection with the outside air through the extension part 822 and the outer surface of the antenna cover 2.

[0084] Optionally, the second heat generating chip 322 of the second board 32 is attached to the first shielding plate 81 .

[0085] Fig.13 A cross-sectional view of another antenna device in a horizontal plane provided in an embodiment of the present disclosure. Fig.13 As shown, Figure 2 The difference is that the second board 32 is attached to the surface of the first shielding plate 81 close to the shielding inner space M, which is conducive to introducing the heat generated by the second board 32 into the first shielding plate 81. The heat dissipation area of ​​the first shielding plate 81 is larger, so the first shielding plate 81 is dissipated more quickly through the action of the fan. At the same time, the heat can also be introduced into the first side wall 22 of the antenna cover 2 through the first shielding plate 81 and the second shielding plate 82 connected to the first shielding plate 81, and the heat is dissipated by convection with the outside air through the second outer surface S5 of the first side wall 22.

[0086] Optionally, the second board 32 includes a plurality of boards, and different second boards 32 are attached to different first shielding plates 81 .

[0087] Taking six first shielding plates 81 forming a hexagon as an example, the second board 32 includes two, respectively attached to two oppositely disposed first shielding plates 81. Alternatively, the second board 32 includes four, respectively attached to oppositely disposed first shielding plates 81 in different directions, which is beneficial to heat dissipation.

[0088] Optionally, the second heat generating chip 322 of the second board 32 is attached to the first shielding plate 81 .

[0089] In some embodiments, Figure 2 , Figure 3 , Figure 4 or Fig. 9 As shown, the shielding assembly further includes two third shielding plates 83, one of which is connected to one end of the plurality of first shielding plates 81 close to the top cover 21, and the other is connected to one end of the plurality of first shielding plates 81 close to the base 1. The plane where the third shielding plate 83 is located is parallel to the first inner plane S3 where the base 1 is located.

[0090] The antenna assembly 3 also includes an antenna element (not shown in the figure). The third shielding plate close to the top cover 21 has a receiving portion for receiving the antenna element. The third shielding plate close to the base 1 is used to block the influence of the first board 31 on the antenna element.

[0091] The accommodating portion corresponds to the sub-shielding space M1 and is used to receive signals from various directions or transmit signals to various directions.

[0092] The antenna device provided by the present disclosure is more suitable for shipboard antennas. Compared with vehicle-mounted antennas used on land, shipboard antennas are more susceptible to extreme weather. The shipboard antenna is applied to the antenna device of the present disclosure, which can ensure the sealing and achieve good heat dissipation of the closed space Q, thereby ensuring the working performance and reliability of the antenna assembly 3.

[0093] In some examples, the antenna assembly 3 in the antenna device also includes a transceiver unit, a radio frequency transceiver, a signal amplifier, a power amplifier, and a filtering unit. The antenna device is a communication device, and the antenna in the communication device can be used as a transmitting antenna or a receiving antenna. Among them, the transceiver unit may include a baseband and a receiving end. The baseband provides a signal of at least one frequency band, such as a 2G signal, a 3G signal, a 4G signal, a 5G signal, etc., and sends a signal of at least one frequency band to the radio frequency transceiver. After the antenna in the communication device receives the signal, it can be processed by the filtering unit, the power amplifier, the signal amplifier, and the radio frequency transceiver and then transmitted to the receiving end in the transceiver unit. The receiving end may be, for example, a smart gateway.

[0094] Furthermore, the RF transceiver is connected to the transceiver unit, and is used to modulate the signal sent by the transceiver unit, or to demodulate the signal received by the antenna and transmit it to the transceiver unit. Specifically, the RF transceiver may include a transmitting circuit, a receiving circuit, a modulation circuit, and a demodulation circuit. After the transmitting circuit receives various types of signals provided by the baseband, the modulation circuit can modulate the various types of signals provided by the baseband and then send them to the antenna. The antenna receives the signal and transmits it to the receiving circuit of the RF transceiver. The receiving circuit transmits the signal to the demodulation circuit, and the demodulation circuit demodulates the signal and transmits it to the receiving end.

[0095] Furthermore, the RF transceiver is connected to a signal amplifier and a power amplifier, and the signal amplifier and the power amplifier are connected to a filter unit, and the filter unit is connected to at least one antenna. In the process of the communication device sending a signal, the signal amplifier is used to improve the signal-to-noise ratio of the signal output by the RF transceiver and then transmit it to the filter unit; the power amplifier is used to amplify the power of the signal output by the RF transceiver and then transmit it to the filter unit; the filter unit may specifically include a duplexer and a filter circuit, and the filter unit combines the signals output by the signal amplifier and the power amplifier and transmits them to the antenna after filtering out clutter, and the antenna radiates the signal. In the process of the communication device receiving a signal, the antenna receives the signal and transmits it to the filter unit, and the filter unit filters out clutter from the signal received by the antenna and transmits it to the signal amplifier and the power amplifier. The signal amplifier amplifies the signal received by the antenna to increase the signal-to-noise ratio; the power amplifier amplifies the power of the signal received by the antenna. The signal received by the antenna is processed by the power amplifier and the signal amplifier and then transmitted to the RF transceiver, and the RF transceiver transmits it to the transceiver unit.

[0096] In some examples, the signal amplifier may include various types of signal amplifiers, such as a low noise amplifier, which is not limited herein.

[0097] In some examples, the antenna provided by the embodiments of the present disclosure also includes a power management unit, which is connected to a power amplifier to provide the power amplifier with a voltage for amplifying a signal.

[0098] Other essential components of the antenna device should be understood by those skilled in the art and will not be described in detail herein and should not be construed as limiting the present disclosure.

[0099] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present disclosure, but the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and substance of the present disclosure, and these modifications and improvements are also considered to be within the scope of protection of the present disclosure.

Claims

1. An antenna device, characterized in that: Includes base, radome, antenna assembly and radiator; The antenna cover comprises a top cover and a first side wall connected to the edge of the top cover, wherein the first side wall is connected to the base to form a closed space for accommodating the antenna assembly; The heat sink is arranged in the enclosed space and is located at a side of the antenna assembly away from the base; when the heat sink is in an open state, it is used to realize air flow in the enclosed space and conduct the heat generated by the antenna assembly to the base.

2. The antenna device according to claim 1, characterized in that The antenna device also includes a plurality of heat dissipation fins; The plurality of heat dissipation fins are arranged on a first outer surface of the base close to the closed space; and a first plane where the heat dissipation fins are located is arranged to intersect with the first outer surface of the base.

3. The antenna device according to claim 2, characterized in that The plurality of heat dissipation fins are parallel to each other.

4. The antenna device according to claim 2, characterized in that: The heat dissipation fins and the base are connected to form an integrated structure.

5. The antenna device according to claim 1, characterized in that: The heat sink is a fan.

6. The antenna device according to claim 1, characterized in that: The antenna assembly includes a plurality of boards; A portion of the plurality of boards is recorded as a first board, and another portion is recorded as a second board; The first board is attached to the inner surface of the base close to the closed space; The second board is disposed between the first board and the heat sink, and an extension surface of the second plane where the second board is located is intersected with the inner surface.

7. The antenna device according to claim 6, characterized in that: The first board includes a first main body structure and a first heat generating chip arranged on the first main body structure, and the first heat generating chip is located between the first main body structure and the base.

8. The antenna device according to any one of claims 1 to 7, characterized in that: The antenna device further comprises a shielding assembly; the shielding assembly comprises a plurality of first shielding plates; the plurality of first shielding plates are arranged in the closed space, and the plurality of first shielding plates are sequentially connected into a ring structure to form a shielded inner space; The heat sink and the second board are both located in the shielding inner space.

9. The antenna device according to claim 8, characterized in that: The shielding assembly further comprises a plurality of second shielding plates; the plurality of second shielding plates are arranged in the closed space; Any second shielding plate is connected to the joint of two adjacent first shielding plates and extends to a side away from the shielding inner space; different second shielding plates have different connection positions.

10. The antenna device according to claim 8, characterized in that: The first side wall includes a plurality of openings; the shielding assembly also includes a plurality of second shielding plates; Any second shielding plate is connected to the joint of two adjacent first shielding plates, extends along a side away from the shielding inner space, and protrudes through the opening to a second outer surface of the first side wall away from the closed space.

11. The antenna device according to claim 10, characterized in that: A sealing structure is provided between the second shielding plate and the second side wall of the opening passing therethrough.

12. The antenna device according to claim 8, characterized in that The antenna device also includes a bracket located in the closed space, and the bracket is fixed on the base; the heat sink is fixed to one end of the bracket away from the base, and the second board is arranged between the first board and the heat sink and fixed on the bracket.

13. The antenna device according to claim 8, characterized in that The second board is attached to a surface of the first shielding plate close to the shielding inner space.

14. The antenna device according to claim 8, characterized in that The shielding assembly also includes two third shielding plates, one of which is connected to one end of the plurality of first shielding plates close to the top cover, and the other is connected to one end of the plurality of first shielding plates close to the base.

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