Housing assembly and laser radar device

Abstract

The utility model provides a shell assembly and a laser radar device. The shell assembly comprises an upper cover, a base and a connecting bolt. The upper cover and the base are connected through the connecting bolts, and the contact surfaces of the assembled upper cover and base are fixed through bonding; the contact surface of one of the upper cover and the base is provided with a first hole body, and the contact surface of the other one of the upper cover and the base is provided with a second hole body; the first hole body comprises a first threaded hole; the second hole body comprises a second threaded hole; and the aperture of the second threaded hole is larger than that of the first threaded hole. The aperture of the first threaded hole is matched with the outer diameter of the connecting bolt; the connecting bolt penetrates through the second threaded hole and then is in threaded connection with the first threaded hole. According to the shell assembly and the laser radar device provided by the invention, the laser radar device can be disassembled conveniently, and maintenance is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of optoelectronic equipment, and in particular to a housing assembly and a laser radar device. Background Art

[0002] LiDAR achieves functions such as distance measurement and testing of targets by emitting laser beams. In the field of autonomous driving, LiDAR systems are often used to achieve field detection and imaging of the vehicle's surrounding environment. Therefore, the entire machine needs to be fixed during assembly to cope with various harsh outdoor environments. However, when the upper and lower shells of the LiDAR device are fixed, the entire LiDAR device cannot be disassembled, which brings about the problem of difficult maintenance. Summary of the invention

[0003] Based on this, the present application provides a shell assembly and a laser radar device to solve the problem in the prior art that the entire laser radar device is not easy to disassemble and repair.

[0004] To achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

[0005] On the one hand, an embodiment of the present application provides a housing assembly for accommodating a laser radar system, comprising an upper cover, a base and connecting bolts; the upper cover and the base are connected by the connecting bolts, and the contact surfaces of the upper cover and the base after assembly are fixed by bonding; a first hole body is provided on the contact surface of one of the upper cover and the base, and a second hole body is provided on the contact surface of the other; the first hole body comprises a first threaded hole; the second hole body comprises a second threaded hole; and the aperture of the second threaded hole is larger than the aperture of the first threaded hole;

[0006] The hole diameter of the first threaded hole matches the outer diameter of the connecting bolt; the connecting bolt passes through the second threaded hole and is threadedly connected to the first threaded hole.

[0007] In one embodiment, the second hole body is a stepped hole and further includes a light hole. The second threaded hole is arranged in a direction close to the first threaded hole, and the aperture of the light hole is larger than the aperture of the second threaded hole.

[0008] In one embodiment, the central axis of the second hole is arranged perpendicular to the contact surface between the upper cover and the base.

[0009] In one of the embodiments, the upper cover includes a top plate, and the base includes a bottom plate; the contact surfaces of the upper cover and the base are inclined relative to the top plate and the bottom plate.

[0010] In one embodiment, the upper cover further comprises two first side panels, and a connection frame respectively connected to the top panel and the ends of the two first side panels;

[0011] The base further includes two second side plates and a back plate, the two sides of the back plate are respectively connected to the two second side plates, and the back plate is arranged at one end away from the connection frame;

[0012] After the upper cover and the base are assembled, the lower edge of the first side plate contacts the upper edge of the second side plate, the upper edge of the back plate contacts the edge of the top plate away from the connecting frame, and the connecting frame contacts the outer edge of the bottom plate.

[0013] In one embodiment, the first hole is provided on the upper cover, and the second hole is provided on the base.

[0014] In one of the embodiments, outer surfaces of the top plate and the back plate are respectively provided with heat dissipation structures.

[0015] In one of the embodiments, a protrusion is provided on the inner surface of the top plate, and the protrusion is used to install a first heat-conducting member, and the first heat-conducting member is used to contact the control circuit board inside the shell assembly.

[0016] In one of the embodiments, a groove portion is provided on the inner surface of the back plate, and the groove portion is used to install a second heat-conducting member, and the second heat-conducting member is used to contact the laser transceiver module group inside the housing assembly.

[0017] In one of the embodiments, a mounting groove is provided on the connection frame, and a window glass is installed on the mounting groove.

[0018] On the other hand, an embodiment of the present application provides a laser radar device, including a laser radar system and a shell assembly as described above, wherein the laser radar system is installed in the shell assembly.

[0019] The present application has at least the following beneficial effects: the housing assembly provided by the embodiment of the present application includes an upper cover and a base, and the contact surfaces of the upper cover and the base are respectively provided with a first hole body and a second hole body, and the aperture of the first threaded hole of the first hole body is smaller than the aperture of the second threaded hole of the second hole body. When the upper cover and the base are assembled, the second threaded hole can be used as a through hole, and a connecting bolt matching the aperture of the first threaded hole is passed through the second threaded hole and then threadedly connected with the first threaded hole, and the nut of the connecting bolt is clamped outside the second threaded hole. When it is necessary to disassemble the upper cover and the base after bonding and fixing, the connecting bolt can be removed first, and replaced with a bolt matching the aperture of the second threaded hole. Since the outer diameter of the bolt is larger than the inner diameter of the first threaded hole, the bolt can be screwed into the second threaded hole and abut against the end face of the first threaded hole of the upper cover, and the bolt can be continuously screwed in to apply thrust to the lower edge of the upper cover, thereby facilitating the disassembly of the upper cover and the base, and facilitating the maintenance of the components in the housing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of the shell assembly after assembly according to an embodiment of the present application.

[0021] Figure 2 for Figure 1 A schematic diagram of the exploded structure of a housing assembly from one perspective.

[0022] Figure 3 for Figure 1 Schematic diagram of the exploded structure of another perspective of the shell assembly.

[0023] Figure 4 for Figure 1 A schematic diagram of the partial cross-sectional structure of the base.

[0024] The meanings of the symbols in the accompanying drawings are as follows:

[0025] 110, upper cover; 111, first threaded hole; 112, top plate; 1121, raised portion; 113, first side plate; 114, connecting frame; 115, mounting groove;

[0026] 120, base; 121, second hole body; 1211, second threaded hole; 1212, light hole; 122, bottom plate; 123, second side plate; 124, back plate; 1241, groove portion; 125, bolt hole;

[0027] 130. Window glass; 140. Heat dissipation structure. DETAILED DESCRIPTION

[0028] The technical solution of the present application is further elaborated in detail below in conjunction with the accompanying drawings and specific embodiments of the specification.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit the implementation of this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] See also Figure 1 The shell assembly of the embodiment of the present application is used to accommodate a laser radar system, and the shell assembly includes an upper cover 110 and a base 120.

[0033] like Figure 2 and Figure 3 As shown, the contact surfaces of the upper cover 110 and the base 120 after assembly are fixed by bonding; a first hole body is provided on the contact surface of one of the upper cover 110 and the base 120, and a second hole body 121 is provided on the contact surface of the other; the first hole body includes a first threaded hole 111. Figure 4As shown, the second hole body 121 in this embodiment is a stepped hole, including a second threaded hole 1211 and a light hole 1212; the second threaded hole 1211 is arranged toward the first threaded hole 111, and the apertures of the light hole 1212, the second threaded hole 1211 and the first threaded hole 111 decrease in sequence. The positions of the first hole body and the second hole body 121 are not fixed. The first hole body can be arranged on the upper cover 110 and the second hole body 121 can be arranged on the base 120, or the second hole body 121 can be arranged on the upper cover 110 and the first hole body can be arranged on the base 120. In this embodiment, the first hole body is arranged on the upper cover 110 and the second hole body 121 is arranged on the base 120 for the sake of appearance and neatness. In this embodiment, the second hole body 121 is arranged as a stepped hole. In other embodiments, the second hole body 121 can also be arranged as a straight hole including only the second threaded hole 1211.

[0034] The housing assembly of this embodiment also includes a connecting bolt (not shown), the outer diameter of which matches the inner diameter of the first threaded hole 111. The upper cover 110 and the base 120 are fixed by gluing and bonding on the contact surface. At the same time, the connecting bolt passes through the second threaded hole 1211 and is threadedly connected to the first threaded hole 111, which further enhances the stability of the connection between the two. When the second hole body 121 is a stepped hole, after the connecting bolt is tightened, the nut of the connecting bolt is clamped at the bottom of the light hole 1212 of the second hole body 121. If the second hole body 121 is a straight hole and only includes the second threaded hole 1211, the nut of the connecting bolt is clamped outside the second threaded hole 1211.

[0035] Please continue reading Figure 2 and Figure 3 Specifically, in this embodiment, the upper cover 110 includes a top plate 112, two first side plates 113, and a connection frame 114 connected to the two first side plates 113 and the ends of the top plate 112. Two first side plates 113 are extended downward from both sides of the top plate 112. The two first side plates 113 are triangular in shape, one side of the triangle is connected to the top plate 112, another side of the triangle is connected to the connection frame 114, and the third side of the triangle is used to connect with the base 120 to form a contact surface. A mounting groove 115 is provided on the connection frame 114, and a window glass 130 is installed on the mounting groove 115. The window glass 130 of this embodiment is made of BF33 glass (borosilicate glass), which has high transmittance to lasers of a special wavelength band emitted by the laser, but is not transparent to the naked eye.

[0036] The base 120 of this embodiment includes a bottom plate 122, two second side plates 123 and a back plate 124. Two second side plates 123 extend upward from both sides of the bottom plate 122, respectively. The back plate 124 is connected between the two second side plates 123, and the back plate 124 is arranged at an end away from the connection frame 114. The two second side plates 123 are also triangular and are arranged corresponding to the two first side plates 113.

[0037] After the upper cover 110 and the base 120 are assembled, the lower edge of the first side plate 113 and the upper edge of the second side plate 123 are in contact, the upper edge of the back plate 124 and the outer edge of the top plate 112 (the edge away from the side of the connection frame 114) are in contact, the lower edge of the connection frame 114 and the outer edge of the bottom plate 122 (the edge away from the side of the back plate 124) are in contact, and the contact surface of the upper cover 110 and the base 120 is tilted relative to the top plate 112 and the bottom plate 122. The contact surface of the upper cover 110 and the base 120 is tilted so that there is no baffle blocking the base 120 on the side close to the window glass 130, which facilitates the installation of components of the laser radar system on the base 120.

[0038] The upper cover 110 and the base 120 of this embodiment are both made of aluminum with medium strength, for example, 6061-T6 aluminum can be selected, which has good corrosion resistance and weldability, good oxidation effect, and good thermal conductivity. In order to further enhance the heat dissipation performance of the housing assembly, heat dissipation structures 140 can be respectively provided on the outer surfaces of the top plate 112 and the back plate 124, for example, heat dissipation fins, convex grooves and other structures can be provided.

[0039] In this embodiment, there are a total of 4 first threaded holes 111, which are respectively arranged at the four corners of the lower edge of the upper cover 110. In other embodiments, more or fewer first threaded holes 111 may be arranged according to the actual difficulty of disassembly. Correspondingly, 4 second hole bodies 121 are respectively arranged at the four corners of the upper edge of the base 120. Since the contact surface of the upper cover 110 and the base 120 of this embodiment is inclined, in order to facilitate better force application during disassembly, the central axis of the first hole body and the second hole body 121 can be arranged perpendicular to the contact surface of the upper cover 110 and the base 120. In this embodiment, the aperture of the first threaded hole 111 is M2.5, and the aperture of the second threaded hole 1211 is M3.

[0040] The embodiment of the present application also provides a laser radar device, including the above-mentioned housing assembly, and the housing assembly is equipped with a laser radar system. The laser radar system includes a laser transceiver module group and a control circuit board, and there are some heating elements on the laser transceiver module group and the control circuit board. To ensure the heat dissipation of the heating elements, a protrusion 1121 can be provided on the inner surface of the top plate 112, and the protrusion 1121 can be integrally formed or connected with the top plate 112. The protrusion 1121 is used to install a first heat conductor (not shown), and the first heat conductor is used to contact the heating element of the control circuit board. The specific position, height and number of the protrusion 1121 can be determined according to the position, height and number of the specific heating elements on the control circuit board. A groove portion 1241 can also be provided on the inner surface of the back plate 124, and the groove portion 1241 is used to install a second heat conductor (not shown), and the second heat conductor is used to contact the laser transceiver module group. The first heat conductor and the second heat conductor can be, for example, a thermal pad or a thermally conductive gel. The heat dissipation effect of the laser radar device can be further enhanced by providing the first heat conductor and the second heat conductor.

[0041] To facilitate the installation of the laser radar device, four bolt holes 125 can be provided at the four corners of the base 120 extending outward along the plane direction of the bottom plate 122, and the entire laser radar device can be fixed by bolts and other connecting parts.

[0042] The method of using the first hole body and the second hole body 121 of the embodiment of the present application is as follows (the aperture of the first threaded hole 111 in the present embodiment is M2.5, and the aperture of the second threaded hole 1211 is M3 for explanation): When assembling the upper cover 110 and the base 120, first select M2.5 connecting bolts, and then pass the four connecting bolts through the light hole 1212 and the second bolt hole 125 in sequence, and then threadedly connect with the first threaded hole 111 to connect and fix the upper cover 110 and the base 120. At the same time, by applying sealant or other adhesive on the contact surface of the upper cover 110 and the base 120 for sealing and fixing, the upper cover 110 and the base 120 are tightly connected to cope with harsh environmental conditions. If it is necessary to disassemble the upper cover 110 and the base 120 that have been bonded and fixed, the M2.5 connecting bolts can be unscrewed and replaced with M3 disassembly bolts. The four disassembly bolts are respectively inserted from the ends of the light holes 1212 and form a threaded connection with the second bolt holes 125. The disassembly bolts are continued to be screwed inward. When the disassembly bolts are completely screwed into the second threaded holes 1211, since the outer diameter of the disassembly bolts is larger than the inner diameter of the first threaded holes 111, the end of the disassembly bolts abuts against the lower edge of the upper cover 110. The disassembly bolts are continued to be screwed inward. The disassembly bolts form a thrust on the upper cover 110, thereby making it easy to separate the upper cover 110 from the base 120.

[0043] The housing assembly and laser radar device of the embodiment of the present application can be easily disassembled after the upper cover and the base are bonded and fixed, which is convenient for repair and maintenance. The structure design of the upper cover and the base is reasonable, which is convenient for the installation and heat dissipation of internal components, and is conducive to maintaining the stable operation of the laser radar system.

[0044] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0045] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A housing assembly for accommodating a laser radar system, characterized in that: The invention comprises an upper cover (110), a base (120) and connecting bolts; the upper cover (110) and the base (120) are connected by the connecting bolts, and the contact surfaces of the assembled upper cover (110) and the base (120) are fixed by bonding; a first hole body is provided on the contact surface of one of the upper cover (110) and the base (120), and a second hole body (121) is provided on the contact surface of the other; the first hole body comprises a first threaded hole (111); the second hole body (121) comprises a second threaded hole (1211); and the aperture of the second threaded hole (1211) is larger than the aperture of the first threaded hole (111); The hole diameter of the first threaded hole (111) matches the outer diameter of the connecting bolt; the connecting bolt passes through the second threaded hole (1211) and is threadedly connected to the first threaded hole (111).

2. The housing assembly according to claim 1, wherein: The second hole body (121) is a stepped hole and further comprises a light hole (1212); the second threaded hole (1211) is arranged in a direction close to the first threaded hole (111); and the aperture of the light hole (1212) is larger than the aperture of the second threaded hole (1211).

3. The housing assembly according to claim 1 or 2, characterized in that: The central axis of the second hole (121) is arranged perpendicular to the contact surface between the upper cover (110) and the base (120).

4. The housing assembly according to claim 1, wherein: The upper cover (110) includes a top plate (112), and the base (120) includes a bottom plate (122); contact surfaces of the upper cover (110) and the base (120) are arranged to be inclined relative to the top plate (112) and the bottom plate (122).

5. The housing assembly according to claim 4, characterized in that: The upper cover (110) further comprises two first side plates (113), and a connection frame (114) respectively connected to the top plate (112) and the ends of the two first side plates (113); The base (120) further comprises two second side plates (123) and a back plate (124), the two sides of the back plate (124) are respectively connected to the two second side plates (123), and the back plate (124) is arranged at an end away from the connection frame (114); After the upper cover (110) and the base (120) are assembled, the lower edge of the first side plate (113) contacts the upper edge of the second side plate (123), the upper edge of the back plate (124) contacts the edge of the top plate (112) away from the connecting frame (114), and the outer edges of the connecting frame (114) and the bottom plate (122) contact.

6. The housing assembly according to claim 5, characterized in that: The outer surfaces of the top plate (112) and the back plate (124) are respectively provided with heat dissipation structures (140).

7. The housing assembly according to claim 4, wherein: The inner surface of the top plate (112) is provided with a protrusion (1121), and the protrusion (1121) is used to install a first heat-conducting member, and the first heat-conducting member is used to contact the control circuit board inside the housing assembly.

8. The housing assembly according to claim 5, wherein: The inner surface of the back plate (124) is provided with a groove portion (1241), and the groove portion (1241) is used to install a second heat conducting member, and the second heat conducting member is used to contact the laser transceiver module group inside the housing assembly.

9. The housing assembly according to claim 5, wherein: The connection frame (114) is provided with a mounting groove (115), and a window glass (130) is mounted on the mounting groove (115).

10. A laser radar device, characterized in that: It comprises a laser radar system and a shell assembly as described in any one of claims 1 to 9, wherein the laser radar system is installed in the shell assembly.

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