CN218412879U - Millimeter wave radar and unmanned aerial vehicle - Google Patents
Millimeter wave radar and unmanned aerial vehicle Download PDFInfo
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- CN218412879U CN218412879U CN202222581397.0U CN202222581397U CN218412879U CN 218412879 U CN218412879 U CN 218412879U CN 202222581397 U CN202222581397 U CN 202222581397U CN 218412879 U CN218412879 U CN 218412879U
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Abstract
The utility model relates to a millimeter wave radar and unmanned aerial vehicle, include: the antenna comprises an antenna unit, a baseband unit, a first shielding piece and a second shielding piece, wherein the baseband unit is electrically connected with the antenna unit; the first shielding part comprises a first body and a first bending part, the edge of the first body is provided with the first bending part, the first body and the first bending part enclose a first shielding space, the opening of the first shielding space faces the antenna unit, one side of the first shielding part is connected with the antenna unit, and the other side of the first shielding part is connected with the baseband unit; the second shielding part comprises a second body and a second bending part, the edge of the second body is provided with the second bending part, the second body and the second bending part enclose a second shielding space, and the edge of the second shielding part is connected with one side, far away from the antenna unit, of the baseband unit. Above-mentioned millimeter wave radar simple structure has realized the electromagnetic compatibility between millimeter wave radar and the unmanned aerial vehicle, can satisfy unmanned aerial vehicle to the demand of lightweight design, has improved performance.
Description
Technical Field
The utility model relates to a radar technology field especially relates to millimeter wave radar and unmanned aerial vehicle.
Background
The millimeter wave radar can measure distance, speed and direction of a target, has extremely high penetration rate, and can accurately detect objects by passing through illumination, rainfall, dust raising, fog or frost. At present, the mainstream millimeter wave radar adopts a double-layer board scheme for reducing the size, the millimeter wave radar comprises an upper shell and a lower shell, two layers of PCB boards (printed circuit boards) are arranged in the shells, one layer of PCB board is used as a power supply board and connected with a power connector, the other layer of PCB board is used as an antenna unit, millimeter waves are transmitted through a transmitting plane, and signals are transmitted through connectors between boards.
The unmanned aerial vehicle product is in order to guarantee the safety of flight, need be equipped with the radar usually and surveys the surrounding environment, for unmanned aerial vehicle goes in realizing keeping away the barrier, the control of speed of traveling provides the data foundation, and millimeter wave radar technology is mature, and the application on unmanned aerial vehicle is wider. But unmanned aerial vehicle product space is limited, has very strict requirement to the weight, and general millimeter wave radar can not satisfy the lightweight demand of unmanned aerial vehicle.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a millimeter wave radar that is small in size, light in weight, and simple in structure, and satisfies electromagnetic compatibility, in order to solve the problem of lightweight design of the millimeter wave radar.
A millimeter wave radar, comprising:
an antenna unit;
the baseband unit is electrically connected with the antenna unit;
the first shielding part comprises a first body and a first bending part, the first bending part is arranged at the edge of the first body, a first shielding space is enclosed by the first body and the first bending part, the opening of the first shielding space faces the antenna unit, one side of the first shielding part is connected with the antenna unit, and the other side of the first shielding part is connected with the baseband unit;
the second shielding part comprises a second body and a second bending part, the edge of the second body is provided with the second bending part, the second body and the second bending part enclose a second shielding space, and the edge of the second shielding part is connected with one side, far away from the antenna unit, of the baseband unit.
In one embodiment, the antenna further comprises a conductive structure disposed between the base band unit and the first shield, the conductive structure flexibly connecting the base band unit and the first shield.
In one embodiment, the conductive structure is a conductive adhesive, a copper-clad windowing region is arranged at the edge of the baseband unit, and the copper-clad windowing region is electrically connected with the conductive adhesive.
In one embodiment, the first shielding member is provided with a first avoidance region, one side of the antenna unit close to the baseband unit is exposed through the first avoidance region, and the antenna unit and the baseband unit are connected at the first avoidance region.
In one embodiment, the mobile terminal further comprises a first connecting piece and a second connecting piece, wherein the first connecting piece is fixedly connected with the baseband unit, and the second connecting piece is connected with the antenna unit and the first connecting piece.
In one embodiment, the first connecting piece is a metal internal thread connecting column, and the second connecting piece is a screw.
In one embodiment, the second shielding member is provided with a second avoidance area, the baseband unit is exposed through the second avoidance area, the baseband unit is provided with an external terminal, the external terminal is electrically connected with the baseband unit, and the external terminal is arranged in the second avoidance area.
In one embodiment, the antenna unit includes an antenna and an antenna chip, the antenna is disposed on a side of the antenna unit away from the baseband unit, and the antenna chip is disposed on a side of the antenna unit close to the baseband unit.
In one embodiment, the first bending part and the antenna unit are fixed by welding; and/or the presence of a gas in the gas,
the second bending part and the baseband unit are fixed through welding.
The utility model also provides an unmanned aerial vehicle, include as above-mentioned millimeter wave radar.
Above-mentioned millimeter wave radar, antenna element is used for the transmission of radar electromagnetic wave signal, accept and signal processing etc, the baseband unit is used for carrying out radar signal processing and testing result output to the signal of antenna element output, first kink and first body through first shielding part form first shielding space, with the inter-plate signal shielding between baseband unit and the antenna element, second kink and the second body through the second shielding part form the second shielding space and shield the signal that the baseband unit produced and keep apart, moreover, the steam generator is simple in structure, electromagnetic compatibility between millimeter wave radar and the unmanned aerial vehicle has been realized, structure volume and weight have been lightened, be convenient for assemble, can satisfy unmanned aerial vehicle to the demand of lightweight design, realize the inter-plate heat conduction heat dissipation between antenna element and the baseband unit through first shielding part simultaneously, millimeter wave radar's performance has been improved.
Above-mentioned unmanned aerial vehicle can realize the electromagnetic compatibility between millimeter wave radar and the unmanned aerial vehicle, has alleviateed structure volume and weight, and the equipment is convenient.
Drawings
Fig. 1 is a schematic view of a first perspective structure of a millimeter-wave radar in an embodiment;
FIG. 2 is an exploded view of a millimeter wave radar in one embodiment;
fig. 3 is a second view structural diagram of the millimeter wave radar in an embodiment.
Description of reference numerals:
1. an antenna unit; 2. a baseband unit; 3. a first shield; 31. a first body; 32. a first bent portion; 4. a conductive structure; 5. a second shield; 51. a second avoidance zone; 52. a second body; 53. a second bent portion; 6. a first connecting member; 7. a second connecting member.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1 to 3, fig. 1 shows a first view structural diagram of a millimeter wave radar in an embodiment of the present invention, fig. 2 is an exploded view of the millimeter wave radar in an embodiment, and fig. 3 is a second view structural diagram of the millimeter wave radar in an embodiment. An embodiment of the utility model provides a millimeter wave radar, include: the antenna comprises an antenna unit 1, a baseband unit 2, a first shielding piece 3 and a second shielding piece 5, wherein the baseband unit 2 is electrically connected with the antenna unit 1; the first shielding part 3 comprises a first shielding space, the first shielding part 3 comprises a first body 31 and a first bending part 32, the edge of the first body 31 is provided with the first bending part 32, the first body 31 and the first bending part 32 enclose a first shielding space, the opening of the first shielding space faces the antenna unit 1, one side of the first shielding part 3 is connected with the antenna unit 1, and the other side of the first shielding part 3 is connected with the baseband unit 2; the second shielding element 5 includes a second body 52 and a second bent portion 53, the edge of the second body 52 is provided with the second bent portion 53, the second body 52 and the second bent portion 53 enclose a second shielding space, and the edge of the second shielding element 5 is connected to one side of the baseband unit 2, which is far away from the antenna unit 1. Above-mentioned millimeter wave radar, antenna element 1 and baseband unit 2 are the PCB Board (Printed Circuit Board), antenna element 1 is used for radar electromagnetic wave signal's transmission, receive and signal processing etc, baseband unit 2 is used for carrying out radar signal processing and testing result output to the signal of antenna element 1 output, first kink 32 and first body 31 through first shielding piece 3 form first shielded space, signal shielding between baseband unit 2 and antenna element 1, second kink 53 and the second body 52 through second shielding piece 5 form second shielded space, shield the signal that baseband unit 2 produced and keep apart, moreover, the steam generator is simple in structure, electromagnetic compatibility between millimeter wave radar and the unmanned aerial vehicle has been realized, structure volume and weight have been alleviateed, the equipment of being convenient for, millimeter wave radar total weight is less than 30g, can satisfy the demand that unmanned aerial vehicle designed to the lightweight, realize the heat conduction heat dissipation between antenna element 1 and the baseband unit 2 through first shielding piece 3 simultaneously, the performance of millimeter wave radar has been improved.
In order to optimize the structure and improve the space utilization, in one embodiment, the antenna unit 1 includes an antenna and an antenna chip, the antenna is disposed on one side of the antenna unit 1 away from the baseband unit 2, the antenna chip is disposed on one side of the antenna unit 1 close to the baseband unit 2, the connection positions of the antenna and the antenna chip are reasonably arranged, a shielding case of the antenna unit 1 is not required to be disposed while the requirements of receiving, signaling and electromagnetic shielding of the antenna unit 1 are met, and the size and the structural weight of the antenna unit 1 are reduced.
Optionally, the first shielding member 3 is made of cupronickel, has good cutting performance, electrical performance and radiation-proof shielding performance, can realize electromagnetic shielding between the antenna unit 1 and the baseband unit 2, and is easy to process. Specifically, the first shield 3 has a thickness of 0.15mm and a weight of only 1.3g, and the second shield 5 has a weight of 1.6g, and functions of shielding and mounting are realized by a simple structure, thereby reducing the structural weight of the millimeter wave radar.
In order to ensure good contact of the millimeter wave radar, the millimeter wave radar further comprises a conductive structure 4, the conductive structure 4 is arranged between the base band unit 2 and the first shielding piece 3, the conductive structure 4 flexibly connects the base band unit 2 and the first shielding piece 3, and EMC (Electromagnetic Compatibility) instability caused by shielding gap variation between the first shielding piece 3 and the base band unit 2 due to different linear expansion coefficients of components, environmental temperature change or vibration is prevented through flexible connection.
Further, the conductive structure 4 is a conductive adhesive, a copper-clad windowing region is arranged at the edge of the baseband unit 2, and the copper-clad windowing region is electrically connected with the conductive adhesive. The flexible connection and the electrical connection of the base band unit 2 and the first shielding member 3 are realized by conductive adhesive.
Optionally, the conductive adhesive is made of silica gel, the silica gel substrate is filled with nickel carbon powder, the silica gel HAs elasticity after curing, the shore hardness is 60HA, the bonding strength of the copper-clad windowing region of the first shielding part 3 and the base band unit 2 is greater than 10N/cm, the connection stability is guaranteed, meanwhile, a certain vibration buffering effect is achieved, good contact can be kept in temperature change and vibration environments, the adaptability is better, and the shielding is more reliable.
In order to facilitate assembly of the antenna unit and the baseband unit, in one embodiment, the first shielding member 3 is provided with a first avoidance region, one side of the antenna unit 1 close to the baseband unit 2 is exposed through the first avoidance region, and the antenna unit 1 is connected with the baseband unit 2 at the first avoidance region.
In one embodiment, the millimeter wave radar further includes a first connecting piece 6 and a second connecting piece 7, the first connecting piece 6 is fixedly connected with the baseband unit 2, and the second connecting piece 7 is connected with the antenna unit 1 and connected with the first connecting piece 6, so as to realize the connection and fixation of the baseband unit 2 and the antenna unit 1. Specifically, the second connecting member 7 and the baseband unit 2 are welded and fixed through a surface mounting technology, so that automation is easy to realize, and production efficiency is improved. Optionally, the number of the first connecting parts 6 and the number of the second connecting parts 7 are at least four, and the at least four second connecting parts 7 are uniformly distributed on the edge of the baseband unit 2, so that the connection is more stable and reliable. Optionally, the first connecting piece 6 is a metal internal thread connecting column, the second connecting piece 7 is a screw, the weight of the single metal internal thread connecting column is only 0.12g, and the weight of the screw is only 0.2g, so that the weight of the connecting pieces is reduced.
Further, the second shielding part 5 is provided with a second avoidance area 51, the baseband unit 2 is exposed through the second avoidance area 51, the baseband unit 2 is provided with an external terminal, the external terminal is electrically connected with the baseband unit 2, the external terminal is arranged in the second avoidance area 51, the millimeter wave radar is electrically connected with external equipment and is in communication connection through the external terminal, the second avoidance area 51 saves the occupied space of the external terminal, the size of the baseband unit 2 is further reduced, and the space utilization rate is improved.
In one embodiment, the first bending portion 32 and the antenna unit 1 are fixed by welding, and the second bending portion 53 and the baseband unit 2 are fixed by welding, specifically, the first bending portion 32 and the second bending portion 53 are fixed by welding through a surface mount technology, so that automation is easy to achieve, and production efficiency is improved.
The utility model also provides an unmanned aerial vehicle, include as above-mentioned millimeter wave radar, can realize the electromagnetic compatibility between millimeter wave radar and the unmanned aerial vehicle, alleviateed structure volume and weight, the equipment is convenient.
Above-mentioned millimeter wave radar, antenna element 1 is used for the transmission of radar electromagnetic wave signal, accept and signal processing etc, baseband unit 2 is used for carrying out radar signal processing and testing result output to the signal of antenna element 1 output, first kink 32 and first body 31 through first shield 3 form first shielding space, with the inter-plate signal shielding between baseband unit 2 and the antenna element 1, second kink 53 and the second body 52 through second shield 5 form second shielding space, shield the signal that baseband unit 2 produced and keep apart, moreover, the steam generator is simple in structure, electromagnetic compatibility between millimeter wave radar and the unmanned aerial vehicle has been realized, structure volume and weight have been alleviateed, the equipment of being convenient for, can satisfy the demand of unmanned aerial vehicle to lightweight design, realize the inter-plate heat conduction heat dissipation between antenna element 1 and the baseband unit 2 through first shield 3 simultaneously, millimeter wave radar's performance has been improved.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A millimeter-wave radar characterized by comprising:
an antenna unit;
the baseband unit is electrically connected with the antenna unit;
the first shielding part comprises a first body and a first bending part, the first bending part is arranged at the edge of the first body, a first shielding space is enclosed by the first body and the first bending part, the opening of the first shielding space faces the antenna unit, one side of the first shielding part is connected with the antenna unit, and the other side of the first shielding part is connected with the baseband unit;
the second shielding part comprises a second body and a second bending part, the edge of the second body is provided with the second bending part, the second body and the second bending part enclose a second shielding space, and the edge of the second shielding part is connected with one side, far away from the antenna unit, of the baseband unit.
2. The millimeter wave radar of claim 1, further comprising a conductive structure disposed between the baseband unit and the first shield, the conductive structure flexibly connecting the baseband unit and the first shield.
3. The millimeter wave radar according to claim 2, wherein the conductive structure is a conductive adhesive, and a copper-clad window area is provided at an edge of the baseband unit, and the copper-clad window area is electrically connected to the conductive adhesive.
4. The millimeter wave radar according to claim 1, wherein the first shield member is provided with a first avoidance region through which a side of the antenna unit close to the baseband unit is exposed, and the antenna unit and the baseband unit are connected at the first avoidance region.
5. The millimeter wave radar of claim 4, further comprising a first connector fixedly connected to the baseband unit and a second connector connected to the antenna unit and to the first connector.
6. The millimeter wave radar of claim 5, wherein the first connector is a metallic internally threaded post and the second connector is a screw.
7. The millimeter wave radar according to claim 1, wherein the second shield member is provided with a second avoidance area through which the baseband unit is exposed, the baseband unit is provided with an external terminal electrically connected to the baseband unit, and the external terminal is provided in the second avoidance area.
8. The millimeter wave radar according to claim 1, wherein the antenna unit includes an antenna and an antenna chip, the antenna is disposed on a side of the antenna unit away from the baseband unit, and the antenna chip is disposed on a side of the antenna unit close to the baseband unit.
9. The millimeter wave radar according to any one of claims 1 to 8, wherein the first bent portion and the antenna unit are fixed by welding; and/or the presence of a gas in the atmosphere,
the second bending part and the baseband unit are fixed through welding.
10. An unmanned aerial vehicle comprising a millimeter wave radar according to any one of claims 1 to 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2022219630262 | 2022-07-26 | ||
| CN202221963026 | 2022-07-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218412879U true CN218412879U (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222581397.0U Active CN218412879U (en) | 2022-07-26 | 2022-09-28 | Millimeter wave radar and unmanned aerial vehicle |
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|---|---|
| CN (1) | CN218412879U (en) |
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- 2022-09-28 CN CN202222581397.0U patent/CN218412879U/en active Active
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