Radar equipment and portable devices

Abstract

A radar device and a movable device, comprising an antenna board (10), the antenna board (10) comprising a first surface (A) provided with an antenna array, and a second surface (B) opposite to the first surface (A); a first shell (20), arranged opposite to the first surface (A) of the antenna board (10), the first shell (20) being directly fixedly connected to the antenna board (10), and a preset gap being provided between the first shell (20) and the first surface (A); and a second shell (30), arranged opposite to the second surface (B) of the antenna board (10), the second shell (30) being directly fixedly connected to the first shell (20), and the first shell (20) and the second shell (30) being enclosed to form a storage space for accommodating the antenna board (10); so that the air gap between the antenna board (10) and the antenna cover of the radar device can be precisely controlled to ensure antenna performance.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of mechanical structures, and in particular to a radar device and a movable device. Background Art

[0002] In the related art, the radar device is installed on movable devices such as automobiles and unmanned aerial vehicles to achieve basic obstacle avoidance functions. The air gap between the antenna board in the radar device and the shell covering it must meet the design requirements to achieve the preset antenna performance. In the related art, the fixing method of the antenna board and the shell has a multi-level dimensional chain, which makes the air gap between the antenna board and the shell difficult to control, thereby affecting the antenna performance. Summary of the invention

[0003] In view of the above-mentioned defects in the prior art, an embodiment of the present invention provides a radar device and a movable device.

[0004] A first aspect of an embodiment of the present invention provides a radar device, including:

[0005] An antenna board, the antenna board comprising a first surface provided with an antenna array, and a second surface opposite to the first surface;

[0006] A first shell is disposed opposite to the first surface of the antenna board, the first shell is directly fixedly connected to the antenna board, and a preset gap is formed between the first shell and the first surface;

[0007] The second shell is arranged opposite to the second surface of the antenna board. The second shell is directly fixedly connected to the first shell. The first shell and the second shell are enclosed to form a storage space for accommodating the antenna board.

[0008] A second aspect of an embodiment of the present invention provides a movable device, including a main body, on which a radar device is installed, and the radar device includes:

[0009] An antenna board, the antenna board comprising a first surface provided with an antenna array, and a second surface opposite to the first surface;

[0010] A first shell is disposed opposite to the first surface of the antenna board, the first shell is directly fixedly connected to the antenna board, and a preset gap is formed between the first shell and the first surface;

[0011] The second shell is arranged opposite to the second surface of the antenna board. The second shell is directly fixedly connected to the first shell. The first shell and the second shell are enclosed to form a storage space for accommodating the antenna board.

[0012] The radar device and movable device provided by the embodiments of the present invention include an antenna board, a first shell and a second shell. The first shell is directly fixed to the antenna board, and the first surface of the antenna board having an antenna array faces the first shell. There is a preset gap between the first shell and the first surface. Then the second shell is fixed to the first shell, so that the antenna board is accommodated in an accommodating cavity formed by the first shell and the second shell. Since the antenna board is directly fixed to the first shell, the assembly dimension chain between the two is minimized, so the air gap between the antenna board and the shell can be precisely controlled to ensure the antenna performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 A schematic diagram of the structure of a radar device provided by an embodiment of the present invention;

[0015] Figure 2 A cross-sectional view of a radar device provided by an embodiment of the present invention in an assembled state with a first housing and an antenna board;

[0016] Figure 3 A cross-sectional view of an antenna board of a radar device provided by an embodiment of the present invention before being installed to a first housing;

[0017] Figure 4 A cross-sectional view of a first housing of a radar device provided by an embodiment of the present invention;

[0018] Figure 5 A cross-sectional view of a radar device provided by an embodiment of the present invention before the connecting wire is installed to the first housing;

[0019] Figure 6 This is an axonometric diagram of the radar device provided by an embodiment of the present invention before the connecting wire is installed to the first housing. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0022] The term "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Substantially" means that within an acceptable error range, a person skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0023] It should be understood that the terms "and / or, and / or" used in this article are only a way to describe the association relationship of associated objects, indicating that there can be three relationships. For example, A1 and / or B1 can represent: A1 exists alone, A1 and B1 exist at the same time, and B1 exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0024] Some embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the absence of mutual contradiction, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification.

[0025] The inventors have found through creative labor that the radar device in the related art is applied to mobile devices, such as drones, automatic / assisted driving vehicles, ordinary vehicles, etc. When these mobile devices are used in outdoor environments, they are exposed to water vapor, dust and other environments. The radar device has high requirements for waterproofing and dustproofing. If the influence of water vapor and dust on the radar device exceeds the predetermined value, the performance of the radar device will be affected. The radar device includes an upper radome, an antenna board, a middle frame and a bottom cover. The upper radome, the antenna board and the bottom cover are respectively mounted on the middle frame, and the surface with the antenna array on the antenna board is opposite to the surface of the upper radome. According to the radar design standard, a preset gap needs to be left between the antenna board and the upper radome to form an air gap layer. The air gap is set to ensure the air medium. The size of the air gap directly affects the antenna performance. Therefore, to achieve the predetermined antenna performance, the size of the air gap must be strictly controlled.

[0026] However, in the related art, since the upper radome and the antenna plate are respectively connected to the middle frame, this will result in more assembly dimension chains. When the size of any one of the upper radome, the middle frame and the antenna plate changes, or the assembly size of the upper radome and the middle frame changes, or the assembly size of the antenna plate and the middle frame changes, it will affect the air gap between the upper radome and the antenna plate, and therefore the antenna performance cannot be guaranteed.

[0027] In order to solve the above technical problems, the present invention provides the following embodiments to provide a radar device, which can reliably control the air gap above the surface of the antenna board with the antenna array to ensure the antenna performance.

[0028] Figure 1 A schematic diagram of the structure of a radar device provided in an embodiment of the present invention. Figure 2 A cross-sectional view of a radar device provided by an embodiment of the present invention in an assembled state with a first housing and an antenna board; Figure 3 A cross-sectional view of the antenna plate of the radar device provided in an embodiment of the present invention before being installed to the first housing; please refer to the attached Figure 1 -Attached Figure 3 This embodiment provides a radar device. In this embodiment, the radar device may be a millimeter wave radar. In this embodiment, the radar device includes an antenna board 10 , a first housing 20 and a second housing 30 .

[0029] The antenna board 10 includes a first surface A provided with an antenna array, and a second surface B opposite to the first surface A. The first shell 20 is arranged opposite to the first surface A of the antenna board 10, the first shell 20 is directly fixedly connected to the antenna board 10, and a preset gap is formed between the first shell 20 and the first surface A.

[0030] Specifically, the antenna board 10 can be a printed circuit board, and the first surface A and the second surface B of the antenna board 10 are arranged basically in parallel. An antenna array can be provided on the antenna board 10, and the antenna array can be welded or printed on the first surface A of the antenna board 10. The antenna array includes a transmitting antenna array and a receiving antenna array. The transmitting antenna array is used to transmit electromagnetic waves, and the receiving antenna array is used to receive electromagnetic waves.

[0031] like Figure 1 As shown, the antenna board 10 is also provided with a main chip 11 and a computing chip 12, which are responsible for completing the collection and pre-processing calculation of radar data. The obstacle information can be obtained by comparing and analyzing the transmitted wave and the received wave to achieve the purpose of obstacle avoidance.

[0032] In some embodiments, the second surface B of the antenna board 10 may or may not be provided with related electronic components, which is not limited in this embodiment.

[0033] The first shell 20 is arranged opposite to the first surface A, which means that the first shell 20 and the first surface A can be arranged relatively parallel, or the first shell 20 can have a certain inclination angle relative to the first surface A, as long as the first shell 20 faces the first surface A. In this embodiment, since it is necessary to ensure the air gap between the first shell 20 and the first surface A, the gaps at various locations between the first shell 20 and the first surface A should be equal, so that the air gaps at various locations between the first shell 20 and the first surface A are uniform. Therefore, in some embodiments, the first shell 20 and the first surface A can be arranged opposite to each other in parallel. In this embodiment, the preset gap size between the first shell 20 and the first surface A can be 1.8 mm. During the processing and assembly of the first shell 20 and the antenna board 10, the prescribed air gap between the first shell 20 and the antenna board 10 is strictly controlled. In this embodiment, the air gap between the first shell 20 and the antenna board 10 is 1.8 mm, thereby ensuring the required antenna performance.

[0034] The first shell 20 and the antenna board 10 maintain a preset gap and are directly fixedly connected. In some embodiments, the first shell 20 and the antenna board 10 can be detachably connected by detachable fasteners such as screws and bolts, so as to facilitate the repair or replacement of electronic components on the antenna board 10, or directly replace the antenna board 10. Alternatively, the first shell 20 and the antenna board 10 are non-detachably connected, for example, the first shell 20 and the antenna board 10 are bonded and fixed, or the first shell 20 and the antenna board 10 are clamped and fixed, etc. The detachable connection between the first shell 20 and the antenna board 10 can facilitate the repair or replacement of the antenna board 10, while the non-detachable connection between the first shell 20 and the antenna board 10 can stably maintain the air gap between the first shell 20 and the first surface A of the antenna board 10 to ensure the antenna performance. Those skilled in the art can specifically select and design according to actual needs, and this embodiment is not limited.

[0035] The second shell 30 is arranged opposite to the second surface B of the antenna board 10 . The second shell 30 is directly fixedly connected to the first shell 20 . The first shell 20 and the second shell 30 enclose a storage space for accommodating the antenna board 10 .

[0036] Specifically, the second housing 30 is arranged relative to the second surface B of the antenna board 10, which means that the second housing 30 and the second surface B can be arranged relatively parallel, or the second housing 30 can have a certain inclination angle relative to the second surface B, as long as the second housing 30 faces the second surface B. In this embodiment, in some embodiments, the first housing 20 and the second housing 30 can be detachably connected by detachable fasteners such as screws and bolts. Optionally, the first housing 20 and the second housing 30 can also be non-detachably connected, which is not limited in this embodiment.

[0037] The first shell 20 and the second shell 30 can be buckled together to enclose a receiving space for the antenna board 10. The first shell 20 and the second shell 30 can be sealed to prevent external moisture and dirt from entering between the first shell 20 and the second shell 30 and affecting the performance of the electronic components on the internal antenna board 10, thereby affecting the accuracy and service life of the entire radar.

[0038] It should be noted that the direct fixed connection described in this embodiment means that two components are directly connected together through a detachable or non-detachable connecting member, and there is no intermediate connecting member between the two components.

[0039] The radar device provided by the embodiment of the present invention includes an antenna board, a first shell and a second shell. The first shell is directly fixed to the antenna board, and the first surface of the antenna board having an antenna array faces the first shell. There is a preset gap between the first shell and the first surface. Then the second shell is fixed to the first shell, so that the antenna board is accommodated in an accommodating cavity formed by the first shell and the second shell. Since the antenna board is directly fixed to the first shell, the assembly dimension chain between the two is minimized, so the air gap between the antenna board and the shell can be precisely controlled to ensure the antenna performance.

[0040] Further, such as Figure 1 As shown, the first shell 20 can be disposed above the first surface A of the antenna board 10. In this way, the antenna board 10 can be completely shielded and protected by the first shell 20, ensuring that the electronic components on the antenna board 10 are not damaged.

[0041] More specifically, Figure 1 As shown, the first shell 20 may include a top wall 21 and a side wall 22 connected around the top wall 21, and the antenna board 10 is accommodated and fixed in the accommodating cavity X formed by the top wall 21 and the side wall 22. In this embodiment, the top wall 21 and the side wall 22 may be perpendicular to each other, and the cross-sectional shape of the accommodating cavity X may match the shape of the antenna board 10. For example, in some embodiments, the cross-sectional shape of the accommodating cavity X may be square, and the antenna board 10 is also square.

[0042] In some other embodiments, the top wall 21 and the side wall 22 may not be perpendicular to each other, but may have an acute angle or an obtuse angle therebetween, as long as the accommodating cavity X can be formed by the top wall 21 and the side wall 22 .

[0043] In some embodiments, the cross-sectional shape of the first shell 20 may also be any shape such as a circle, a hexagon, an ellipse, a rhombus, etc., and the number and location of the side walls 22 of the first shell 20 may also be specifically designed according to the shape of the first shell 20, which is not limited in this embodiment. The shape of the antenna board 10 may also not match the cross-sectional shape of the accommodating cavity X. For example, the shape of the antenna board 10 is square, and the cross-sectional shape of the accommodating cavity X is any shape such as a circle, a hexagon, an ellipse, a rhombus, etc.

[0044] The antenna board 10 can be directly fixedly connected to the top wall 21, and / or the antenna board 10 can be directly fixedly connected to the side wall 22. Specifically, the antenna board 10 can be connected only to the top wall 21 of the first shell 20, or only to the side wall 22 of the first shell 20, or the antenna board 10 can be connected to both the top wall 21 of the first shell 20 and the side wall 22 of the first shell 20. It should be noted that when the antenna board 10 is connected to the side wall 22 of the first shell 20, the edge of the antenna board 10 can have a connection portion facing the side wall 22 of the first shell 20. In some embodiments, the connection portion can be a buckle, and correspondingly, a card slot or a card hole can be provided on the side wall 22 of the first shell 20. Regardless of whether the antenna board 10 is connected to the top wall 21 or the side wall 22 of the first shell 20, as long as the antenna board 10 can be completely and firmly fixed in the accommodating cavity X of the first shell 20.

[0045] Specifically, the gap between the antenna board 10 and the first shell 20 refers to the gap between the first surface A of the antenna board 10 and the inner surface of the top wall 21 of the first shell 20. The antenna board 10 is firmly fixed in the accommodating cavity X of the first shell 20, and maintains a stable gap with the inner surface of the top wall 21 of the first shell 20 to form a stable air gap layer.

[0046] In a preferred embodiment, if Figure 1 As shown, the antenna board 10 can be directly fixedly connected to the top wall 21, and the connection point between the antenna board 10 and the top wall 21 is located at the edge of the antenna board 10. In a specific embodiment, a connection hole can be opened at the edge of the antenna board 10, which can be a screw hole or a light hole. The inner surface of the top wall 21 of the first shell 20 can be provided with a stud extending toward the antenna board 10. Alternatively, the thickness of the top wall 21 of the first shell 20 is sufficient, and a threaded blind hole is opened on the inner surface of the top wall 21 of the first shell 20. Fasteners such as screws can pass through the connection hole of the antenna board 10 and connect to the stud or threaded blind hole on the first shell 20, so as to connect and fix the first shell 20 to the antenna board 10.

[0047] It should be noted that when the first shell 20 is provided with a stud to connect with the antenna board 10, the height of the stud can be determined according to the air gap that needs to be reserved between the first shell 20 and the first surface A of the antenna board 10, and when the first shell 20 is provided with a threaded blind hole to connect with the antenna board 10, the first shell 20 and / or the antenna board 10 have a gasket to limit the fit between the two, so that the above-mentioned air gap can be maintained between the two.

[0048] In this embodiment, the connection point between the antenna board 10 and the first shell 20 is set at the edge of the antenna board 10, which can effectively avoid occupying the middle position of the antenna board 10 and prevent opening a hole in the middle of the antenna board 10 to affect the performance of the antenna board 10.

[0049] Furthermore, the antenna plate 10 may be roughly rectangular, and the edge positions of the antenna plate 10 include the corner positions and the side positions, and the connection points between the antenna plate 10 and the top wall 21 are located at the corner positions. The so-called roughly rectangular means that the antenna plate 10 is not necessarily a standard rectangle, and its four corners may be rounded or chamfered. Figure 1 As shown, the four corners of the antenna board 10 are rounded. In this embodiment, in some embodiments, the connection point between the antenna board 10 and the top wall 21 is located at the corner position, and there may be four connection holes M1 opened on the antenna board 10, and the four connection holes M1 are respectively located at the four corners of the antenna board 10. Therefore, when the fastener passes through the antenna board 10 and is connected to the top wall 21 through the connection holes M1 at the four corners, the pre-tightening force applied by the fastener is close to the corner of the antenna board 10, and the risk of deformation of the antenna board 10 itself is minimized, so that the distance between each part of the first surface A of the antenna board 10 and the top wall 21 is as equal as possible, which is conducive to ensuring the uniformity of the air gap between the first surface A of the antenna board 10 and the top wall 21.

[0050] In order to ensure the sealing between the first shell 20 and the second shell 30, a sealing ring 40 may be provided between the first shell 20 and the second shell 30, and the sealing ring 40 is used to seal the first shell 20 and the second shell 30. Specifically, the sealing ring 40 may be provided on the first shell 20, or the sealing ring 40 may be provided on the second shell 30, or, in some embodiments, the first shell 20 and the second shell 30 may be provided with sealing rings. When the first shell 20 and the second shell 30 are buckled, the sealing ring 40 is subjected to the extrusion force between the two, so that the sealing ring 40 is deformed to block the connection gap between the first shell 20 and the second shell 30, thereby ensuring the sealing between the first shell 20 and the second shell 30.

[0051] In the present invention, in some embodiments, the first shell 20 includes a top wall 21 and a side wall 22, and the first shell 20 can form a receiving cavity X, and the second shell 30 can include a bottom wall and a side wall, and the second shell 30 can also form a receiving cavity (not shown in the figure). In this case, the receiving cavity X of the first shell 20 can form a receiving space for the antenna board 10 together with the receiving cavity of the second shell 30. In some other embodiments, the first shell 20 includes a top wall 21 and a side wall 22, and the second shell 30 can be plate-shaped. In this case, the receiving cavity X formed by the first shell 20 directly constitutes a receiving space for the antenna board 10.

[0052] In this embodiment, the sealing ring 40 can be directly arranged around the antenna board 10. Thus, the antenna board 10 is protected in all directions to prevent external water vapor from entering the antenna board 10 and affecting the performance of the antenna board 10. In addition, the shape of the sealing ring 40 can also be adapted to the contour shape of the antenna board 10, which effectively saves space and reduces the outer contour size of the entire radar device while providing all-round protection for the antenna board 10.

[0053] like Figure 1 As shown, a sealing ring 40 may be provided on the second shell 30, and the sealing ring 40 extends into the first shell 20, and the sealing ring 40 at least abuts against the top wall 21 of the first shell 20. The sealing ring 40 at least abuts against the top wall 21 of the first shell 20, thereby completely preventing external water vapor or dust from entering the accommodation space.

[0054] The second shell 30 may include a base 31, and the base 31 includes a heat sink. The base 31 may be made of a metal with good heat dissipation performance, such as aluminum, which is light, low-cost, and has good heat dissipation performance. The base 31 may be made entirely of heat dissipation material or partially of heat dissipation material, which is not limited in this embodiment. In some embodiments, the base 31 may be a metal part as a whole. Of course, it is understandable that the base 31 may include a base bottom wall 311 and a base side wall 312, and the base bottom wall 311 and the base side wall 312 may both be made of heat dissipation material, thereby achieving good heat dissipation in both the up and down directions and the lateral directions. In some embodiments, heat dissipation fins may also be provided on the wall surface of the base 31, and the heat dissipation fins may improve the overall heat dissipation effect.

[0055] The sealing ring 40 may be disposed on the base 31 , the sealing ring 40 may be bonded to the base 31 , or one end of the sealing ring 40 may be embedded in the base 31 , and the other end of the sealing ring 40 may abut against the inner surface of the first shell 20 .

[0056] The connection point between the second shell 30 and the first shell 20 is located at the edge of the base 31, so that the connection between the first shell 20 and the second shell 30 can be relatively stable, and there is no need to open a connection hole in the middle of the first shell 20 and the second shell 30, which does not affect the performance of the first shell 20 and the second shell 30. The first shell 20 and the second shell 30 can be connected by fasteners such as screws and bolts, or the two can be connected by snap-fit, which is not limited in this embodiment.

[0057] In this embodiment, in some embodiments, the outer contour of the base 31 is roughly rectangular. The so-called roughly rectangular means that the outer contour of the base 31 is not necessarily a standard rectangle, and its four corners may be rounded or chamfered. Figure 1 As shown, the four corners of the base 31 are rounded. The edge positions of the base 31 include the corner positions and the side positions, and the connection points of the second shell 30 and the first shell 20 are located at the corner positions. For example, for the second shell 30, the connection hole M2 of the second shell 30 is located at the corner of the base 31, so that the pre-tightening force of the fastener is not easy to cause the first shell 20 and the second shell 30 to deform, ensuring the assembly accuracy.

[0058] It should be noted that the sealing ring 40 can be located on the outside of the base side wall 312 of the base 31, and the height of the sealing ring 40 can be higher than the base side wall 312 or lower than the base side wall 312. When the height of the sealing ring 40 is lower than the base side wall 312, the inner surface of the first shell 20 can have a groove, and the top of the base side wall 312 can extend into the groove, so that in the assembled state, the sealing ring 40 can press against the top wall of the first shell 20.

[0059] Optionally, if the base 31 is a plate-like structure, the base 31 does not include a base side wall 312 , and the sealing ring 40 is directly located on the base 31 near the edge, and when the first shell 20 and the second shell 30 are assembled, the sealing ring 40 is located in the accommodating cavity X of the first shell 20 .

[0060] like Figure 1As shown, further, a protrusion 31a in contact with the second surface B of the antenna board 10 is provided on the base 31, and at least the top position of the protrusion 31a has a heat-conducting layer 311a, and the heat-conducting layer 311a is in contact with at least one heating element on the antenna board 10. In this embodiment, the heat-conducting layer may include a thermal grease layer. The thermal grease layer may be fixed to the protrusion 31a by coating or bonding. During the operation of the radar device, the electronic components on the antenna board 10 will generate heat to a greater or lesser extent. In this embodiment, by providing a protrusion 31a in the base 31, a heat-conducting layer 311a is provided on the protrusion 31a to absorb the heat on the antenna board 10a, thereby reducing the temperature of the antenna board 10 as much as possible, and effectively preventing the heating elements on the antenna board 10 from heating up so that the overall temperature of the antenna board 10 increases and affects the antenna performance.

[0061] Figure 4 A cross-sectional view of a first housing of a radar device provided by an embodiment of the present invention; Figure 5 A cross-sectional view of a radar device provided by an embodiment of the present invention before the connecting wire is installed to the first housing; Figure 6 This is an axonometric diagram of the radar device provided by an embodiment of the present invention before the connecting wire is installed to the first housing.

[0062] like Figure 1-Figure 6 As shown, in some embodiments, the radar device provided by the present invention further includes: a connector 50, the connector 50 includes a connector housing 51 and a connecting wire 52, and the connecting wire 52 is at least partially accommodated in the space formed by the connector housing 51. The outer contour cross-section of the connector housing 51 can be roughly rectangular or circular, etc., which can be specifically related to the port shape of the external device to be connected. The connector 50 needs to be docked with the port of the external device, so that the entire radar device is connected to the external device. The connector housing 51 protects the connecting wire 52 to prevent the user from accidentally touching the connecting wire 52, causing danger or damage to the connecting wire 52. The connector housing 51 can be integrally formed with the first housing 20, eliminating the assembly link, ensuring reliability and reducing costs, and reducing the size chain of the entire radar device. The connector housing 51 and the first housing 20 can both be plastic parts to ensure insulation performance. In a specific embodiment, the connector housing 51 and the first housing 20 can be integrally injection molded, and the molding process is simple and the cost is low.

[0063] The connecting line 52 may include a pin, a first end of the pin is connected to the antenna board 10, and a second end of the pin is used to contact an external device to establish an electrical connection. Specifically, the first end of the pin can be welded or plugged into the antenna board 10. The pin can be welded or plugged into the printed circuit on the antenna board 10, and electrically connected to one or more electronic components on the antenna board 10 through the printed circuit. In some embodiments, the first end of the pin is non-detachably connected to the antenna board 10 to ensure the stability of the electrical connection. After the first shell 20, the connector 50, and the antenna board 10 are assembled, the three cannot be disassembled to ensure the stability of the electrical connection between the three, as well as the stability of the air gap, to ensure antenna performance.

[0064] In this embodiment, the connector 50 may be located on one side of the whole formed by the first housing 20 and the second housing 30. Specifically, the first housing 20 and the second housing 30 are buckled together to form an upper surface, a lower surface, and a side surface between the upper surface and the lower surface. The connector 50 may be located at the side surface formed by the first housing 20 and the second housing 30, thereby reducing the height of the entire radar device.

[0065] The outline size of the connector 50 is smaller than the overall side surface size formed by the first shell 20 and the second shell 30. In this way, for the entire radar device, the connector 50 will not be exposed from the side of the radar device and will not occupy the height size of the radar device, thereby effectively reducing the outer contour envelope size of the radar device, making the radar device structure as compact as possible, with a simple structure and a reasonable layout.

[0066] like Figure 2-Figure 4 , the pin extends from the first end and is bent several times until the second end extends into the connector housing 51. Since the connecting wire 52 is led out from the first surface A of the antenna board 10, and the gap between the first surface A of the antenna board 10 and the first shell 20 is small, and since the connector shell 51 and the first shell 20 are integrally formed, in order to allow the pin to extend into the connecting wire housing 51 and minimize the envelope size of the radar device as a whole, the pin is directly bent into the connector housing 51 without moving the position of the connector housing 51 to the upper side of the first shell 20, which can also effectively ensure that the envelope size of the radar device as a whole is minimized.

[0067] The bending direction of the connecting wire 52 is adapted to the side surface profile of the first shell 20 and / or the second shell 30. Thus, the number of bending times of the connecting wire 52 can be minimized and the length of the connecting wire 52 can be minimized, which can effectively save processing and manufacturing costs.

[0068] Other embodiments of the present invention further provide a movable device. The movable device in this embodiment may include any movable device such as an unmanned aerial vehicle, a car, a mobile robot, etc., which requires ranging, obstacle avoidance, etc.

[0069] The mobile device of this embodiment includes a main body, on which a radar device is installed. The radar device may be a millimeter wave radar. Figure 1 -Attached Figure 3 The radar device includes: an antenna board 10, a first shell 20 and a second shell 30.

[0070] The antenna board 10 includes a first surface A provided with an antenna array, and a second surface B opposite to the first surface A. The first shell 20 is arranged opposite to the first surface A of the antenna board 10, the first shell 20 is directly fixedly connected to the antenna board 10, and a preset gap is formed between the first shell 20 and the first surface A.

[0071] Specifically, the antenna board 10 can be a printed circuit board, and the first surface A and the second surface B of the antenna board 10 are arranged basically in parallel. An antenna array (not shown in the figure) can be provided on the antenna board 10. The antenna array can be welded or printed on the first surface A of the antenna board 10. The antenna array includes a transmitting antenna array and a receiving antenna array. The transmitting antenna array is used to transmit electromagnetic waves, and the receiving antenna array is used to receive electromagnetic waves.

[0072] like Figure 1 As shown, the antenna board 10 is also provided with a main chip 11 and at least one computing chip 12. The main chip 11 and the at least one computing chip 12 are responsible for completing the collection and preprocessing calculation of radar data. The obstacle information can be obtained by comparing and analyzing the transmitted wave and the received wave to achieve the purpose of obstacle avoidance.

[0073] In some embodiments, the second surface B of the antenna board 10 may or may not be provided with related electronic components, which is not limited in this embodiment.

[0074] The first shell 20 is arranged opposite to the first surface A, which means that the first shell 20 and the first surface A can be arranged relatively parallel, or the first shell 20 can have a certain inclination angle relative to the first surface A, as long as the first shell 20 faces the first surface A. In this embodiment, since it is necessary to ensure the air gap between the first shell 20 and the first surface A, the gaps at various locations between the first shell 20 and the first surface A should be equal, so that the air gaps at various locations between the first shell 20 and the first surface A are uniform. Therefore, in some embodiments, the first shell 20 and the first surface A can be arranged opposite to each other in parallel. In this embodiment, the preset gap size between the first shell 20 and the first surface A can be 1.8 mm. During the processing and assembly of the first shell 20 and the antenna board 10, the prescribed air gap between the first shell 20 and the antenna board 10 is strictly controlled. In this embodiment, the air gap between the first shell 20 and the antenna board 10 is 1.8 mm, thereby ensuring the required antenna performance.

[0075] The first shell 20 and the antenna board 10 maintain a preset gap and are directly fixedly connected. In some embodiments, the first shell 20 and the antenna board 10 can be detachably connected by detachable fasteners Q1 such as screws and bolts, so as to facilitate the repair or replacement of electronic components on the antenna board 10, or directly replace the antenna board 10. Alternatively, the first shell 20 and the antenna board 10 are non-detachably connected, for example, the first shell 20 and the antenna board 10 are bonded and fixed, or the first shell 20 and the antenna board 10 are snap-fitted and fixed. The detachable connection between the first shell 20 and the antenna board 10 can facilitate the repair or replacement of the antenna board 10, while the non-detachable connection between the first shell 20 and the antenna board 10 can stably maintain the air gap between the first shell 20 and the first surface A of the antenna board 10 to ensure the antenna performance. Those skilled in the art can specifically select and design according to actual needs, and this embodiment is not limited.

[0076] The second shell 30 is arranged opposite to the second surface B of the antenna board 10 . The second shell 30 is directly fixedly connected to the first shell 20 . The first shell 20 and the second shell 30 enclose a storage space for accommodating the antenna board 10 .

[0077] Specifically, the second housing 30 is arranged relative to the second surface B of the antenna board 10, which means that the second housing 30 and the second surface B can be arranged relatively parallel, or the second housing 30 can have a certain inclination angle relative to the second surface B, as long as the second housing 30 faces the second surface B. In this embodiment, in some embodiments, the first housing 20 and the second housing 30 can be detachably connected by using a detachable fastener Q2 such as a screw or a bolt, and optionally, the first housing 20 and the second housing 30 can also be non-detachably connected, which is not limited in this embodiment.

[0078] The first shell 20 and the second shell 30 can be buckled together to enclose a receiving space for the antenna board 10. The first shell 20 and the second shell 30 can be sealed to prevent external moisture and dirt from entering between the first shell 20 and the second shell 30 and affecting the performance of the electronic components on the internal antenna board 10, thereby affecting the accuracy and service life of the entire radar.

[0079] It should be noted that the direct fixed connection described in this embodiment means that two components are directly connected together through a detachable or non-detachable connecting member, and there is no intermediate connecting member between the two components.

[0080] The movable device provided in an embodiment of the present invention includes a radar device, and the radar device includes an antenna board, a first shell and a second shell. The first shell is directly fixed to the antenna board, and the first surface of the antenna board having an antenna array faces the first shell. There is a preset gap between the first shell and the first surface; then the second shell is fixed to the first shell, so that the antenna board is accommodated in an accommodating cavity formed by the first shell and the second shell. Since the antenna board is directly fixed to the first shell, the assembly dimension chain between the two is minimized, so the air gap between the antenna board and the shell can be precisely controlled to ensure the antenna performance.

[0081] Further, such as Figure 1 As shown, the first shell 20 can be covered above the first surface A of the antenna board 10.

[0082] More specifically, Figure 1 As shown, the first shell 20 may include a top wall 21 and a side wall 22 connected around the top wall 21 , and the antenna board 10 is accommodated and fixed in an accommodating cavity X formed by the top wall 21 and the side wall 22 .

[0083] The antenna board 10 and the top wall 21 may be directly fixedly connected, and / or the antenna board 10 and the side wall 22 may be directly fixedly connected.

[0084] In a preferred embodiment, if Figure 1 As shown, the antenna board 10 can be directly fixedly connected to the top wall 21 , and the connection point between the antenna board 10 and the top wall 21 is located at the edge of the antenna board 10 .

[0085] In this embodiment, the connection point between the antenna board 10 and the first shell 20 is set at the edge of the antenna board 10, which can effectively avoid occupying the middle position of the antenna board 10 and prevent opening a hole in the middle of the antenna board 10 to affect the performance of the antenna board 10.

[0086] Furthermore, the antenna board 10 may be roughly rectangular, and the edge positions of the antenna board 10 include corner positions and side positions, and the connection point between the antenna board 10 and the top wall 21 is located at the corner position.

[0087] In order to ensure the sealing between the first shell 20 and the second shell 30 , a sealing ring 40 may be further provided between the first shell 20 and the second shell 30 , and the sealing ring 40 enables the first shell 20 and the second shell 30 to be sealed and connected.

[0088] In the present invention, in some embodiments, the first shell 20 includes a top wall 21 and a side wall 22, and the first shell 20 can form a receiving cavity X, and the second shell 30 can include a bottom wall and a side wall, and the second shell 30 can also form a receiving cavity (not shown in the figure). In this case, the receiving cavity X of the first shell 20 can form a receiving space for the antenna board 10 together with the receiving cavity of the second shell 30. In some other embodiments, the first shell 20 includes a top wall 21 and a side wall 22, and the second shell 30 can be plate-shaped. In this case, the receiving cavity X formed by the first shell 20 directly constitutes a receiving space for the antenna board 10.

[0089] In this embodiment, the sealing ring 40 can be directly disposed around the antenna board 10 , thereby providing all-round protection for the antenna board 10 , preventing external water vapor from entering the antenna board 10 and affecting the performance of the antenna board 10 .

[0090] like Figure 1 As shown, a sealing ring 40 may be provided on the second housing 30, the sealing ring 40 extends into the first housing 20, and the sealing ring 40 at least abuts against the top wall 21 of the first housing 20. The second housing 30 may include a base 31, and the base 31 includes a heat sink.

[0091] The sealing ring 40 may be disposed on the base 31 , the sealing ring 40 may be bonded to the base 31 , or one end of the sealing ring 40 may be embedded in the base 31 , and the other end of the sealing ring 40 may abut against the inner surface of the first shell 20 .

[0092] The connection point between the second shell 30 and the first shell 20 is located at the edge of the base 31. In this embodiment, in some embodiments, the outer contour of the base 31 is roughly rectangular. The so-called roughly rectangular means that the outer contour of the base 31 is not necessarily a standard rectangle, and its four corners can be rounded or chamfered. Figure 1 As shown, the four corners of the base 31 are rounded. The edge positions of the base 31 include the corner positions and the side positions, and the connection points of the second shell 30 and the first shell 20 are located at the corner positions. Therefore, the pre-tightening force of the fastener is not easy to cause deformation of the first shell 20 and the second shell 30, ensuring assembly accuracy.

[0093] like Figure 1 As shown, further, the base 31 is provided with a protrusion 31a that contacts the second surface B of the antenna board 10, and at least the top position of the protrusion 31a has a thermal conductive layer 311a, and the thermal conductive layer 311a contacts at least one heating element on the antenna board 10.

[0094] like Figure 1-Figure 6As shown, in some embodiments, the radar device in this embodiment further includes: a connector 50, the connector 50 includes a connector housing 51 and a connecting wire 52, and the connecting wire 52 is at least partially accommodated in the space formed by the connector housing 51. The connector housing 51 can be integrally formed with the first housing 20, eliminating the assembly link, ensuring reliability and reducing costs, and reducing the size chain of the entire radar device. The connector housing 51 and the first housing 20 can both be plastic parts to ensure insulation performance. In a specific embodiment, the connector housing 51 and the first housing 20 can be integrally injection molded, and the molding process is simple and the cost is low.

[0095] The connection line 52 may include a pin, a first end of the pin is connected to the antenna board 10, and a second end of the pin is used to contact with an external device to establish an electrical connection. Specifically, the first end of the pin can be welded or plugged to the antenna board 10.

[0096] In this embodiment, the connector 50 may be located on one side of the whole formed by the first housing 20 and the second housing 30. Specifically, the first housing 20 and the second housing 30 are buckled together to form an upper surface, a lower surface, and a side surface between the upper surface and the lower surface. The connector 50 may be located at the side surface formed by the first housing 20 and the second housing 30, thereby reducing the height of the entire radar device.

[0097] The outline size of the connector 50 is smaller than the overall side surface size formed by the first shell 20 and the second shell 30. In this way, for the entire radar device, the connector 50 will not be exposed from the side of the radar device and will not occupy the height size of the radar device, thereby effectively reducing the outer contour envelope size of the radar device, making the radar device structure as compact as possible, with a simple structure and a reasonable layout.

[0098] like Figure 2-Figure 4 The pin extends from the first end and bends multiple times until the second end extends into the connector housing 51. The bending direction of the connecting wire 52 is adapted to the side surface profile of the first housing 20 and / or the second housing 30.

[0099] It should be noted that the structure and function of the movable device provided in this embodiment may be the same as the radar device provided in the above embodiment. For details, please refer to the description of the above embodiment, which will not be repeated here.

[0100] In several embodiments provided in the present invention, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A radar device, characterized in that: include: An antenna board, the antenna board comprising a first surface provided with an antenna array, and a second surface opposite to the first surface; A first shell is arranged opposite to the first surface of the antenna board, the first shell is directly fixedly connected to the antenna board, and a preset gap is formed between the first shell and the first surface; the antenna board is firmly fixed in the accommodating cavity of the first shell, and a stable gap is maintained between the first surface of the antenna board and the inner surface of the top wall of the first shell to form a stable air gap layer; A second shell is arranged opposite to the second surface of the antenna board, the second shell is directly fixedly connected to the first shell, and the first shell and the second shell are enclosed to form an accommodating space for accommodating the antenna board; The second shell is provided with a sealing ring, the sealing ring extends into the first shell, and the sealing ring at least abuts against the top wall of the first shell; The sealing ring is arranged around the antenna plate; The shape of the sealing ring is adapted to the contour shape of the antenna board.

2. The radar device according to claim 1, characterized in that The first shell is detachably connected to the antenna board; or, the first shell is non-detachably connected to the antenna board.

3. The radar device according to claim 1, characterized in that The first shell cover is disposed above the first surface of the antenna board.

4. The radar device according to claim 1, characterized in that The first shell includes a top wall and side walls connected to the top wall, and the antenna board is accommodated and fixed in a receiving cavity formed by the top wall and the side walls.

5. The radar device according to claim 4, characterized in that The antenna plate is directly fixedly connected to the top wall; and / or the antenna plate is directly fixedly connected to the side wall.

6. The radar device according to claim 4, characterized in that The antenna board is directly fixedly connected to the top wall, and a connection point between the antenna board and the top wall is located at an edge of the antenna board.

7. The radar device according to claim 6, characterized in that The antenna board is roughly rectangular, and the edge positions of the antenna board include corner positions and side positions. The connection point between the antenna board and the top wall is located at the corner position.

8. The radar device according to claim 4, characterized in that It also includes a sealing ring, which is arranged between the first shell and the second shell to ensure that the first shell and the second shell are sealed and connected.

9. The radar device according to claim 8, characterized in that The second shell includes a base, and the base includes a heat sink.

10. The radar device according to claim 9, characterized in that: The second shell is provided with a sealing ring, and the sealing ring is arranged on the base. The connection point between the second shell and the first shell is located at the edge of the base.

11. The radar device according to claim 10, characterized in that: The outer contour of the base is roughly rectangular, and the edge positions of the base include a corner position and a side position. The connection point between the second shell and the first shell is located at the corner position.

12. The radar device according to claim 9, characterized in that The base is provided with a protrusion that contacts the second surface of the antenna board, and at least the top position of the protrusion has a heat-conducting layer, and the heat-conducting layer contacts at least one heating element on the antenna board.

13. The radar device according to claim 12, characterized in that: The heat-conducting layer comprises a heat-conducting silicone grease layer.

14. The radar device according to claim 1, characterized in that Also includes: A connector, the connector comprising a connector housing and a connecting wire, the connecting wire being at least partially accommodated in a space formed by the connector housing; The connecting line includes a pin, a first end of the pin is connected to the antenna board, and a second end of the pin is used to contact with an external device to establish an electrical connection.

15. The radar device according to claim 14, characterized in that: The first end of the pin is welded or plugged with the antenna board.

16. The radar device according to claim 14, characterized in that: The connector housing is integrally formed with the first shell.

17. The radar device according to claim 16, characterized in that: The connector is located on one side of a whole formed by the first shell and the second shell.

18. The radar device according to claim 17, characterized in that: The outline size of the connector is smaller than the side surface size of the whole formed by the first shell and the second shell.

19. The radar device according to claim 14, characterized in that: The pin extends from the first end and is bent multiple times until the second end extends into the connector housing.

20. The radar device according to claim 19, characterized in that The bending direction of the connecting line is adapted to the side surface contour of the first shell and / or the second shell.

21. The radar device according to claim 2, characterized in that: The first shell is detachably connected to the antenna board via a fastener.

22. The radar device according to claim 1, characterized in that The second shell is detachably connected to the first shell via a fastener.

23. The radar device according to claim 1, characterized in that The first shell includes a plastic part, and the second shell includes a metal part.

24. The radar device according to claim 1, characterized in that The antenna board is provided with at least one of the following components: a main chip, a transmitting antenna array and a receiving antenna array, and a computing chip.

25. The radar device according to claim 1, characterized in that The radar device includes a millimeter wave radar.

26. A movable device, characterized in that: The invention comprises a main body, on which a radar device is installed, and the radar device comprises: An antenna board, the antenna board comprising a first surface provided with an antenna array, and a second surface opposite to the first surface; A first shell is arranged opposite to the first surface of the antenna board, the first shell is directly fixedly connected to the antenna board, and a preset gap is formed between the first shell and the first surface; the antenna board is firmly fixed in the accommodating cavity of the first shell, and a stable gap is maintained between the first surface of the antenna board and the inner surface of the top wall of the first shell to form a stable air gap layer; A second shell is arranged opposite to the second surface of the antenna board, the second shell is directly fixedly connected to the first shell, and the first shell and the second shell are enclosed to form an accommodating space for accommodating the antenna board; The second shell is provided with a sealing ring, the sealing ring extends into the first shell, and the sealing ring at least abuts against the top wall of the first shell; The sealing ring is arranged around the antenna plate; The shape of the sealing ring is adapted to the contour shape of the antenna board.

27. The movable device according to claim 26, characterized in that: The first shell is detachably connected to the antenna board; or, the first shell is non-detachably connected to the antenna board.

28. The movable device according to claim 26, characterized in that: The first shell cover is disposed above the first surface of the antenna board.

29. The movable device according to claim 28, characterized in that: The first shell includes a top wall and side walls connected to the top wall, and the antenna board is accommodated and fixed in a receiving cavity formed by the top wall and the side walls.

30. The movable device according to claim 29, characterized in that: The antenna plate is directly fixedly connected to the top wall; and / or the antenna plate is directly fixedly connected to the side wall.

31. The movable device according to claim 30, characterized in that: The antenna board is directly fixedly connected to the top wall, and a connection point between the antenna board and the top wall is located at an edge of the antenna board.

32. The movable device according to claim 31, characterized in that: The antenna board is roughly rectangular, and the edge positions of the antenna board include corner positions and side positions. The connection point between the antenna board and the top wall is located at the corner position.

33. The movable device according to claim 29, characterized in that: It also includes a sealing ring, which is arranged between the first shell and the second shell to ensure that the first shell and the second shell are sealed and connected.

34. The movable device according to claim 33, characterized in that: The second shell includes a base, and the base includes a heat sink.

35. The movable device according to claim 34, characterized in that: The second shell is provided with a sealing ring, and the sealing ring is arranged on the base. The connection point between the second shell and the first shell is located at the edge of the base.

36. The movable device according to claim 35, characterized in that: The outer contour of the base is roughly rectangular, and the edge positions of the base include a corner position and a side position. The connection point between the second shell and the first shell is located at the corner position.

37. The movable device according to claim 34, characterized in that: The base is provided with a protrusion that contacts the second surface of the antenna board, and at least the top position of the protrusion has a heat-conducting layer, and the heat-conducting layer contacts at least one heating element on the antenna board.

38. The movable device according to claim 37, characterized in that: The heat-conducting layer comprises a heat-conducting silicone grease layer.

39. The movable device according to claim 26, characterized in that: Also includes: A connector, the connector comprising a connector housing and a connecting wire, the connecting wire being at least partially accommodated in a space formed by the connector housing; The connecting line includes a first end of a pin connected to the antenna board, and a second end of the pin is used to contact with an external device to establish an electrical connection.

40. The movable device according to claim 39, characterized in that: The first end of the pin is welded or plugged with the antenna board.

41. The movable device according to claim 39, characterized in that: The connector housing is integrally formed with the first shell.

42. The movable device according to claim 41, characterized in that The connector is located on one side of a whole formed by the first shell and the second shell.

43. The movable device according to claim 42, characterized in that: The outline size of the connector is smaller than the side surface size of the whole formed by the first shell and the second shell.

44. The movable device according to claim 42, characterized in that: The pin extends from the first end and is bent multiple times until the second end extends into the connector housing.

45. The movable device according to claim 44, characterized in that: The bending direction of the connecting line is adapted to the side surface contour of the first shell and / or the second shell.

46. ​​The movable device according to claim 27, characterized in that: The first shell is detachably connected to the antenna board via a fastener.

47. The movable device according to claim 26, characterized in that: The second shell is detachably connected to the first shell via a fastener.

48. The movable device according to claim 26, characterized in that: The first shell includes a plastic part, and the second shell includes a metal part.

49. The movable device according to claim 26, characterized in that: The antenna board is provided with at least one of the following components: a main chip, a transmitting antenna array and a receiving antenna array, and a computing chip.

50. The movable device according to claim 26, characterized in that: The radar device includes a millimeter wave radar.

51. The movable device according to claim 26, characterized in that: The movable device includes an unmanned aerial vehicle.

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