radar

Abstract

The embodiment provides a radar, which comprises a shell and an electronic component. The shell has a mounting cavity, and a first conductive coating is arranged on the periphery of the shell; the electronic component is arranged in the mounting cavity. The application sets the first conductive coating on the shell of the radar, so that the first conductive coating can be used to electromagnetically shield the electronic component of the radar, and the interference of the radar on other electronic components after use can be improved. Moreover, the whole shell does not need to be made of metal parts, and the weight of the radar can be reduced under the condition of realizing electromagnetic shielding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of radar, in particular to a radar. BACKGROUND

[0002] The existing radar does not have electromagnetic compatibility, which can cause electromagnetic interference to other devices. For example, when the radar is installed on an aircraft, the radar can interfere with the external signals such as GPS of the aircraft. SUMMARY

[0003] The purpose of the present application includes, for example, providing a radar capable of electromagnetic shielding, thereby improving the problem of electromagnetic interference to other electronic components.

[0004] Embodiments of the present application can be implemented as follows:

[0005] In a first aspect, the present application provides a radar, comprising:

[0006] a housing, the housing having a mounting cavity, and a first conductive coating being arranged on the periphery of the housing; and

[0007] an electronic component arranged in the mounting cavity.

[0008] In an optional embodiment, the housing comprises a base and a front shell, the base is made of a non-conductive material, the base is provided with a receiving cavity, and the first conductive coating is arranged on the periphery of the base.

[0009] The front shell is made of the metal, the front shell is arranged on the side of the base where the receiving cavity is arranged, and the front shell and the base form the mounting cavity in combination; the front shell is electrically connected with the first conductive coating.

[0010] In an optional embodiment, the first conductive coating is arranged on the outer peripheral wall of the base and fully covers the outer peripheral wall of the base.

[0011] In an optional embodiment, the radar further comprises a lens barrel seat configured to mount an optical lens.

[0012] The lens barrel seat is arranged in the mounting cavity, the periphery of the lens barrel seat is provided with a second conductive coating, and the second conductive coating is electrically connected with the first conductive coating and the front shell.

[0013] The base, the lens barrel seat and the front shell form the mounting cavity in combination.

[0014] In an optional embodiment, the radar further comprises a first conductive member, the first conductive member is arranged on the side of the base close to the accommodating cavity, and the second conductive coating and the first conductive coating are electrically connected through the first conductive member and the front shell.

[0015] In an optional embodiment, the first conductive member is a conductive foam pad.

[0016] The end surface of the accommodating cavity of the base and the outer peripheral wall of the base are provided with the first conductive coating.

[0017] The outer peripheral wall of the lens barrel seat and the end surface of the lens barrel seat close to the front shell are provided with the second conductive coating.

[0018] The conductive foam pad is installed between the end of the lens barrel seat and the front shell, and the conductive foam pad abuts against the front shell, the first conductive coating of the base provided on the end surface of the accommodating cavity, and the second conductive coating of the lens barrel seat provided on the end surface close to the front shell, and the conductive foam pad is in a compressed state.

[0019] In an optional embodiment, the radar further comprises a second conductive member, the electronic assembly comprises a first circuit board, the first circuit board is arranged in the mounting cavity, and the board body of the first circuit board is subjected to PCB edge metalization treatment, the second conductive member is arranged in the mounting cavity, and the PCB edge metal of the first circuit board is electrically connected with the second conductive coating through the second conductive member.

[0020] In an optional embodiment, the second conductive member is a conductive foam, the number of the second conductive members includes two, the two second conductive members are arranged at intervals, and are connected with the second conductive coating and the PCB edge metal of the second circuit board.

[0021] In an optional embodiment, the electronic assembly further comprises a transmitting circuit board and a receiving circuit board, the transmitting circuit board and the receiving circuit board are arranged in the mounting cavity and connected with the side of the lens barrel seat away from the front shell.

[0022] In an optional embodiment, the outer peripheral wall of the base is provided with an insulating layer outside the first conductive coating; and / or,

[0023] The outer peripheral edge of the front shell is provided with an insulating layer.

[0024] In an optional embodiment, the radar further comprises a sealing member and an electric wire, the electric wire is a shielded wire, the base is provided with an outgoing wire hole in communication with the accommodating cavity, one end of the electric wire is connected with the electronic component, the other end of the electric wire is led out to the outside of the base through the outgoing wire hole, the sealing member is arranged at the outgoing wire hole, and the sealing member is provided with a conductive adhesive layer on the side provided with the first conductive coating, and the conductive adhesive layer is electrically connected with the first conductive coating.

[0025] In an optional embodiment, the side wall of the accommodating cavity is provided with a reinforcing rib, and the bottom wall of the accommodating cavity is provided with a plurality of support platforms, and the lens barrel seat is mounted on the support platforms.

[0026] In an optional embodiment, the front shell wall thickness is between 0.1 mm and 0.3 mm; and / or, the front shell and the base are connected through a buckle structure.

[0027] The radar provided by the embodiments of the present application has the following beneficial effects, for example:

[0028] The present application sets the first conductive coating on the shell of the radar, so that the first conductive coating can be used to electromagnetically shield the electronic components of the radar, the interference of the radar on other electronic components after use can be improved, and the entire shell does not need to be made of metal, the weight of the radar can be reduced under the condition of realizing electromagnetic shielding. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced below, and it should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0030] Figure 1 The radar structure cross-sectional view provided by the present embodiment is shown in the figure;

[0031] Figure 2 The Figure 1 enlarged view of A in the figure;

[0032] Figure 3 Figure 1 enlarged view of B in the figure.

[0033] Icon: 100 - radar; 110 - housing; 111 - mounting cavity; 113 - first conductive coating; 115 - base; 116 - front housing; 117 - accommodating cavity; 119 - lens barrel seat; 121 - second conductive coating; 122 - first conductive member; 123 - insulating layer; 125 - second conductive member; 127 - outgoing wire hole; 129 - conductive adhesive layer; 131 - support table; 140 - buckle structure; 150 - electronic assembly; 151 - first circuit board; 153 - transmitting circuit board; 155 - receiving circuit board; 170 - plugging member; 180 - electric wire. DETAILED DESCRIPTION

[0034] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0036] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0037] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0038] In addition, if the terms "first", "second" and the like appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0039] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0040] Please refer to Figure 1 and Figure 2The embodiment provides a radar 100, which comprises a shell 110 and an electronic component 150. The shell 110 has a mounting cavity 111, and a first conductive coating 113 is arranged on the periphery of the shell 110. The electronic component 150 is arranged in the mounting cavity 111.

[0041] The embodiment can shield the electronic component 150 of the radar 100 by arranging the first conductive coating 113 on the shell 110 of the radar 100, so as to improve the interference of the radar 100 on other electronic components 150 after use, and the whole shell 110 does not need to be made of metal, so that the weight of the radar 100 can be reduced under the condition of electromagnetic shielding.

[0042] Please refer to Figure 1 and Figure 2 In the embodiment, the shell 110 comprises a base 115 and a front shell 116. The base 115 is made of a non-conductive material, for example, plastic, glass fiber reinforced plastic, etc. The base 115 is provided with a containing cavity 117, and the first conductive coating 113 is arranged on the periphery of the base 115. The front shell 116 is made of metal, for example, stainless steel. The front shell 116 is arranged on the side of the base 115 provided with the containing cavity 117, and forms the mounting cavity 111 together with the base 115. The front shell 116 is electrically connected with the first conductive coating 113. The base 115 and the front shell 116 are connected through a buckle structure.

[0043] Please refer to Figure 2 and Figure 3 In the embodiment, the base 115 is made of non-metal, so that the weight of the radar 100 is lighter, and the first conductive coating 113 is electrically connected with the front shell 116, so that a closed metal cavity can be formed to shield the electronic component 150. The front shell 116 has a simple structure, and the cost of stamping the metal part is lower. If the base 115 is also made of metal, the thickness of the front shell 116 is between 0.1 mm and 0.3 mm, the front shell 116 cannot support the large volume of the base 115, the strength is not enough, and the base 115 is very deep, so that the stamping process is not good. If the front shell 116 is also made of non-metal, the thickness of the base 115 needs to be increased or locally thickened to provide a position for screwing, the thickness of the base 115 is 1.2 mm and the density is 2 or 3 g / cm3 in the embodiment, and the position without screwing, and the front shell 116 is made of metal and can be directly connected through the buckle structure 140, so that the base 115 does not need to be thickened.

[0044] In summary, the combination of the base 115 made of non-metal and the front shell 116 made of metal is optimal.

[0045] Please refer to 2, in the embodiment, the front shell 116 includes a side surface and an end surface connected to each other. The buckle structure 140 includes a clamping groove arranged on the side surface of the front shell 116 and a clamping block arranged on the outer side wall of the base 115. When the front shell 116 and the base 115 are installed, the end portion of the base 115 is inserted into the front shell 116, so that the clamping block can be clamped in the clamping groove. Based on the fact that the base 115 is made of a non-metal material and the front shell 116 is made of a metal material, the very thin base 115 can be fixedly connected to the very thin front shell 116 by the buckle structure 140, so that the combined weight is lightest and the connection mode is best.

[0046] Of course, in some other embodiments of the present application, the front shell 116 can be made of a non-conductive material, and the first conductive coating 113 can be arranged on the front shell 116 to perform electromagnetic shielding.

[0047] In the embodiment, the first conductive coating 113 is arranged on the outer peripheral wall of the base 115 and fully covers the outer peripheral wall of the base 115.

[0048] In the embodiment, the first conductive coating 113 is arranged on the outer peripheral wall of the base 115, so that short circuit between the electronic components 150 arranged in the mounting cavity 111 and the first conductive coating 113 can be avoided. Since the possibility of short circuit is avoided, the size can be further compressed, which is more beneficial to reduce the weight and volume.

[0049] In the embodiment, the radar 100 further includes a lens barrel seat 119 configured to mount an optical lens, such as a lens. The lens barrel seat 119 is arranged in the accommodation cavity 117, and the lens barrel seat 119 is provided with a second conductive coating 121 on the peripheral edge. The second conductive coating 121 is electrically connected to the first conductive coating 113 and the front shell 116. The base 115, the lens barrel seat 119, and the front shell 116 form the mounting cavity 111.

[0050] Please refer to Figure 1 and Figure 2 In the embodiment, the second conductive coating 121 is arranged on the lens barrel seat 119, so that the problem of magnetic leakage on the front side of the base 115 can be avoided, and electromagnetic shielding can be better achieved.

[0051] In the embodiment, the radar 100 further includes a first conductive member 122 arranged on the side of the base 115 close to the accommodation cavity 117. The second conductive coating 121 and the first conductive coating 113 are electrically connected to the front shell 116 through the first conductive member 122.

[0052] In the embodiment, the first conductive member 122 is arranged, so that the first conductive coating 113, the second conductive coating 121, and the front shell 116 can be better electrically connected. The mounting cavity 111 can be completely electromagnetically shielded.

[0053] Please refer to Figure 1 and Figure 2 In the embodiment, the first conductive member 122 is a conductive foam pad. The end surface of the accommodating cavity 117 and the outer peripheral wall of the base 115 are provided with the first conductive coating 113. That is, the outer periphery of the base 115 and the front end surface of the base 115 are provided with the second conductive coating 121. The outer peripheral wall of the lens barrel seat 119 and the end surface of the lens barrel seat 119 close to the front shell 116 are provided with the second conductive coating 121. That is, the outer periphery of the lens barrel seat 119 and the front end surface of the lens barrel seat 119 are provided with the second conductive coating 121. The conductive foam pad is installed between the end of the lens barrel seat 119 and the front shell 116, and the conductive foam pad abuts against the first conductive coating 113 of the end surface of the base 115 provided with the accommodating cavity 117, the second conductive coating 121 of the end surface of the lens barrel seat 119 close to the front shell 116, and the front shell 116, and the conductive foam pad is in a compressed state. Generally, the conductive foam is compressed to about 30% after assembly. Considering that the base 115, the front shell 116 and the lens barrel are connected in a solid-solid manner, it is easy to cause open circuit, poor connection and small connection area. In the embodiment, the first conductive member 122 is a conductive foam. Since the conductive foam can conduct electricity and also has a certain rebound effect after compression, it can better realize the electrical connection of the first conductive coating 113, the second conductive coating 121 and the front shell 116, and can make the area of the electrical connection of the first conductive coating 113, the second conductive coating 121 and the front shell 116 larger. The first conductive member 122 made of conductive foam also forms a sealing effect between the front shell 116 and the base 115 and the lens barrel seat 119, and has a light weight, so that the radar 100 has a lighter weight.

[0054] Secondly, in order to better adhere the first conductive member 122 made of conductive foam to the base 115, the lens barrel seat 119 and the front shell 116, the conductive foam is provided with a back adhesive, and the adhesive is a conductive adhesive, so that the first conductive member 122 can be directly adhered to the first conductive coating 113 and the second conductive coating 121 on the end surface of the base 115 and the lens barrel seat 119 on one side, and adhered to the front shell 116 on the other side.

[0055] The first conductive member 122 made of conductive foam is annular, and the width is the sum of the front end surfaces of the base 115 and the lens barrel seat 119. The middle area can also allow the beam of the radar 100 to be emitted.

[0056] In some other embodiments of the present application, the conductive member can also be a metal sheet or a conductor such as a wire.

[0057] Please refer to Figure 1 and Figure 2In summary, the electronic component 150 is arranged in the mounting cavity 111 with the first conductive coating 113, the front shell 116, the second conductive coating 121 and the first conductive member 122, so that the mounting cavity 111 is used to realize electromagnetic shielding of the electronic component 150, thereby avoiding the problem of magnetic leakage and electromagnetic interference. In addition, the radar 100 is lighter in weight in the case of realizing electromagnetic shielding.

[0058] Please refer to Figure 1 and Figure 2 In the embodiment, the radar 100 further comprises a second conductive member 125, the electronic component 150 comprises a first circuit board 151, the first circuit board 151 is arranged in the mounting cavity 111, and the board body of the first circuit board 151 is subjected to PCB edge metalization treatment, the second conductive member 125 is arranged in the mounting cavity 111, and the PCB edge metal of the first circuit board 151 is electrically connected with the second conductive coating 121 through the second conductive member 125.

[0059] The first circuit board 151 is subjected to PCB edge metalization treatment in the embodiment, so that the shielding of the first circuit board 151 can be realized, and the PCB edge metal of the first circuit board 151 can be electrically connected with the second conductive coating 121 through the second conductive member 125, so that the grounding shielding is realized.

[0060] In the embodiment, the first circuit board 151 is the main control board of the radar 100, and is the main source of electromagnetic interference of the radar 100. The electromagnetic shielding can be better realized through the shielding and grounding.

[0061] In the embodiment, the second conductive member 125 is conductive foam, and the number of the second conductive member 125 includes two, one of which is connected with the side wall of the PCB edge metal of the first circuit board 151, and the other is connected with the bottom wall of the PCB edge metal, and both are connected with the second conductive coating 121.

[0062] The second conductive member 125 is also conductive foam, and there are two of them, which can better electrically connect the first circuit board 151 with the second conductive coating 121. The second conductive coating 121 is arranged on the outer periphery of the lens barrel seat 119, so that the electrical connection between the first circuit board 151 and the second conductive coating 121 is realized.

[0063] In the embodiment, the conductive foam of which the second conductive member 125 is made also has conductive adhesive, which is attached to the metal edge of the first circuit board 151 and the second conductive coating 121 through the conductive adhesive, so that the installation is more convenient.

[0064] In the embodiment, the first conductive coating 113 and the second conductive coating 121 are both sprayed conductive paint. The first conductive coating 113 and the second conductive coating 121 can be formed more easily by spraying the conductive paint.

[0065] In the embodiment, the electronic assembly 150 further comprises a transmitting circuit board 153 and a receiving circuit board 155, both of which are arranged in the mounting cavity 111 and connected to the side of the lens barrel seat 119 away from the front shell 116.

[0066] In some other embodiments of the application, the transmitting circuit board 153 and the receiving circuit board 155 can be integrated into one circuit board and arranged in the mounting cavity 111.

[0067] Since the transmitting circuit board 153 and the receiving circuit have less electromagnetic interference, the embodiment arranges them in the mounting cavity 111, and thus the electromagnetic shielding can be realized by the first conductive coating 113 and the second conductive coating 121.

[0068] Please refer to Figure 1 and Figure 3 In the embodiment, the radar 100 further comprises a sealing member 170 and a wire 180, the wire 180 is a shielded wire, the base 115 is provided with an outgoing wire hole 127 communicating with the accommodating cavity 117, one end of the wire 180 is connected to the electronic assembly 150, and the other end of the wire 180 passes through the outgoing wire hole 127 to the outside of the base 115, the sealing member 170 is arranged at the outgoing wire hole 127, and the sealing member 170 is provided with a conductive adhesive layer 129 on the side where the first conductive coating 113 is arranged, and the conductive adhesive layer 129 is electrically connected to the first conductive coating 113.

[0069] The embodiment can perform electromagnetic shielding at the outgoing wire hole 127 by arranging the sealing member 170 at the outgoing wire hole 127 and arranging the conductive adhesive layer 129 on the sealing member, so as to avoid magnetic leakage. When the outgoing wire hole 127 is opened, the electronic assembly 150 is avoided as much as possible. When the conductive adhesive is sprayed, the conductive adhesive layer 129 is extended to the first conductive coating 113 as much as possible, so that the two wires are overlapped. In this way, the base 115 can form a closed and complete metal electromagnetic shield, so as to avoid magnetic leakage and make the electromagnetic shielding effect better. The wire 180 is arranged as a shielded wire, so as to avoid the problem of magnetic leakage at the wire 180.

[0070] It should be noted that the shielded wire is a transmission line in which a signal line is wrapped with a metal mesh braid layer, and the braid layer is generally red copper or tin-plated copper. The shielding layer of the shielded wire needs to be grounded, and external interference signals can be guided to the ground by the layer.

[0071] In the embodiment, in order to avoid the problem of grounding of the first conductive coating 113 during installation of the radar 100, or the problem of short circuit when the radar 100 is handheld, an insulating layer 123 is arranged on the outer circumferential wall (not including the front end surface) of the base 115, which is located outside the first conductive coating 113, and the insulating layer 123 is insulating paint.

[0072] In the embodiment, since the base 115 is made of non-metal, in order to improve the lateral bearing capacity of the base 115 and facilitate installation of the lens barrel seat 119, a reinforcing rib (not shown in the figure) is arranged on the side wall of the accommodating cavity 117, and a plurality of support platforms 131 are arranged on the bottom wall of the accommodating cavity 117, and the lens barrel seat 119 is installed on the support platforms 131.

[0073] In summary, the embodiment of the present application provides the working principle and beneficial effects of the radar 100, including, for example:

[0074] In the embodiment, the first conductive coating 113 is arranged on the shell 110 of the radar 100, so that the first conductive coating 113 can be used to electromagnetically shield the electronic components 150 of the radar 100, and the interference of the radar 100 on other electronic components 150 after use can be improved. Moreover, the entire shell 110 does not need to be made of metal, and the weight of the radar 100 can be reduced while achieving electromagnetic shielding.

[0075] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A radar, characterized by The radar comprises: a shell having a mounting cavity, and a first conductive coating arranged on the periphery of the shell; and an electronic assembly arranged in the mounting cavity; the shell comprises a base and a front shell, the base is made of a non-conductive material, the base is provided with a receiving cavity, and the first conductive coating is arranged on the periphery of the base; the front shell is made of metal, the front shell is arranged on the side of the base where the receiving cavity is arranged, and the base and the front shell form the mounting cavity; the front shell is electrically connected with the first conductive coating; the radar further comprises a lens barrel seat configured to mount an optical lens; the lens barrel seat is arranged in the receiving cavity, the periphery of the lens barrel seat is provided with a second conductive coating, and the second conductive coating is electrically connected with the first conductive coating and the front shell; the base, the lens barrel seat and the front shell form the mounting cavity; the radar further comprises a first conductive member arranged on the side of the base close to the receiving cavity, and the second conductive coating and the first conductive coating are electrically connected with the front shell through the first conductive member; the electronic assembly comprises a transmitting circuit board and a receiving circuit board, both of which are arranged in the mounting cavity and connected with the side of the lens barrel seat away from the front shell; the end face of the base where the receiving cavity is arranged and the outer peripheral wall of the base are both provided with the first conductive coating; the outer peripheral wall of the lens barrel seat and the end face of the lens barrel seat close to the front shell are both provided with the second conductive coating.

2. The radar of claim 1, wherein, The first conductive coating is arranged on the outer peripheral wall of the base and fully covers the outer peripheral wall of the base.

3. The radar of claim 1, wherein, The first conductive member is a conductive foam pad; the conductive foam pad is mounted between the end of the lens barrel seat and the front shell, and the conductive foam pad abuts against the front shell, the first conductive coating of the base arranged on the end face of the receiving cavity, and the second conductive coating of the lens barrel seat arranged on the end face close to the front shell, and the conductive foam pad is in a compressed state.

4. The radar of claim 1, wherein, The radar further comprises a second conductive member, the electronic assembly comprises a first circuit board, the first circuit board is arranged in the mounting cavity, and the board body of the first circuit board is subjected to PCB edge metalization treatment, the second conductive member is arranged in the mounting cavity, and the PCB edge metal of the first circuit board is electrically connected with the second conductive coating through the second conductive member.

5. The radar of claim 4, wherein, The second conductive member is a conductive foam, and the number of the second conductive member includes two, the two second conductive members are arranged at intervals and are both connected with the second conductive coating and the PCB edge metal of the first circuit board.

6. The radar of claim 1, wherein, The outer peripheral wall of the base located outside the first conductive coating is provided with an insulating layer; and / or the outer periphery of the front shell is provided with an insulating layer.

7. The radar of claim 1 or 2, wherein, The radar further comprises a plugging member and an electric wire, the electric wire is a shielded wire, the base is provided with an outgoing wire hole in communication with the accommodating cavity, one end of the electric wire is connected with the electronic component, the other end of the electric wire is led out to the outside of the base through the outgoing wire hole, the plugging member is arranged at the outgoing wire hole, and a conductive adhesive layer is arranged on the side of the plugging member where the first conductive coating is arranged, and the conductive adhesive layer is electrically connected with the first conductive coating.

8. The radar of claim 1, wherein, The side wall of the accommodating cavity is provided with a reinforcing rib, and the bottom wall of the accommodating cavity is provided with a plurality of support tables, and the lens barrel seat is mounted on the support tables.

9. The radar of claim 1 or 2, wherein, The front shell wall thickness is between 0.1mm-0.3mm; and / or, The front shell and the base are connected through a buckle structure.

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