An axisymmetric multi-view camera

Abstract

The application relates to an axisymmetric multi-view camera, which comprises a mounting and fixing shell, a side plate, a rolling bearing and a camera rotating module, the camera rotating module comprises a camera module, a driving source and a shell, the shell comprises a side shell and the side plate, and the side plate is formed with an accommodating cavity; the side shell or the side plate is formed with a recessed cavity; the outer side of the rolling bearing is clamped in the recessed cavity, the shell is movable in the accommodating cavity, and the shell is formed with a cavity groove; the driving source is clamped on one side of the cavity groove, and the inner side of the rotating shaft rolling bearing is sleeved on the rotating shaft. The axisymmetric multi-view camera has the advantages that the rolling bearing can coaxially arrange the transmission shaft of the driving source and the rotating shaft without improving the structural precision, the mechanism movement is stable, the friction is reduced, the output power of the driving source is reduced, the gravity center of the camera rotating module is close to the axis of the rotating shaft, the camera rotating module can be as small as possible to shake and displace when working in a severe vibration condition, and the stability of a displayed image is improved.

Description

Technical Field

[0001] This invention relates to the field of image communication technology, and in particular to an axisymmetric multi-view camera. Background Technology

[0002] When container trucks or special vehicles travel on bumpy roads, the cameras mounted on them are prone to shaky views, making it difficult to see objects clearly. Furthermore, the inertial force caused by prolonged shaking can easily cause the cameras to fall off. In particular, since container trucks need to switch between different angles to observe the environment and road conditions when loading and unloading goods, and existing container trucks generally use wide-angle cameras to observe the environment and road conditions, such wide-angle cameras are distorted in their observation of road conditions, making it difficult for drivers to park based on the camera's image, which poses a serious safety hazard.

[0003] In the prior art, patent number CN 214648037 U discloses a vehicle-mounted camera for monitoring blind spots in large trucks, including a mounting bracket, a housing, a high-definition wide-angle camera, and infrared LED beads. The mounting bracket includes a base plate and side plates, with the side plates arranged parallel to both ends of the upper wall of the base plate. The left and right side walls of the housing are respectively rotatably connected to the inner side walls of the upper end of the side plates. The high-definition wide-angle camera is set on the front wall of the housing, and the infrared LED beads are set around the high-definition wide-angle camera. A transparent cover plate is embedded in the front end of the housing, and the high-definition wide-angle camera and infrared LED beads are both located behind the transparent cover plate. A main control chip is provided inside the housing, and a wire inlet hole is provided on the lower wall of the housing. The base plate has multiple mounting holes along its length. Although this invention can solve the blind spot field of view to a certain extent, the camera structure is relatively bulky and has high energy consumption.

[0004] The patent number is CN 110794877 A vehicle-mounted camera gimbal servo system and control method are disclosed, comprising a three-axis camera gimbal and a servo control device; the three-axis camera gimbal includes a pitch motor, a tilt motor and a yaw motor, a tilt arm (1), a pitch arm (4), a yaw arm (5), a gimbal top mount (7), a camera (11), a pitch bearing (12) and a counterweight (13); the pitch motor includes a pitch motor stator (2) and a pitch motor rotor (3); the yaw motor includes a yaw motor stator (6) and a yaw motor rotor (8); the tilt motor includes a tilt motor stator (9) and a tilt motor rotor (10); the servo control device includes an inertial measurement unit, a three-dimensional modeling control unit, an angular velocity loop control unit and an angular displacement loop control unit. This invention system solves the stability problem of the three-axis camera gimbal by using an inertial measurement unit, a three-dimensional modeling control unit, an angular velocity loop control unit and an angular displacement loop control unit. However, the energy consumption of repeatedly adjusting the camera is high, which is not suitable for use on a container truck.

[0005] Therefore, it is necessary to address the issues of increasing the field of view of ordinary cameras on container trucks while reducing the energy consumption and instability of camera adjustments. Summary of the Invention

[0006] The purpose of this invention is to provide an axisymmetric multi-view camera, which aims to improve the observation range of ordinary cameras on container trucks while reducing the energy consumption and instability of camera adjustment.

[0007] To solve the above technical problems, an axisymmetric multi-view camera is provided, comprising:

[0008] The outer shell includes a side shell and a side plate, the side shell forming a receiving cavity and a clearance opening through the receiving cavity, the side shell or the side plate forming a recess, and the side plate covering the receiving cavity of the side shell;

[0009] A rolling bearing, wherein the outer side of the rolling bearing is engaged in the cavity;

[0010] A camera rotation module includes a drive module, a camera module, a circuit board, and a housing. The drive module includes a drive source and a drive shaft. The housing is movable within a receiving cavity and has a groove. The drive source is engaged in the groove to drive the drive shaft. The drive shaft passes through the housing and is engaged and fixed to one side of the outer shell, allowing the housing to rotate relative to the rotation shaft. The camera module is partially embedded in the groove, with the remaining portion exposed in a clearance opening. A rotating shaft is formed on the other side of the housing, and the inner side of a rolling bearing is fitted onto the rotating shaft. The circuit board is electrically connected to the drive module and the camera module. When the drive source drives the drive shaft to rotate, the housing rotates relative to the outer shell, allowing the camera module to slide in the clearance opening. The center of gravity of the camera rotation module is close to the axis of the drive shaft.

[0011] Furthermore, the cavity includes a first slot and a second slot, which are offset from each other. The drive module is recessed in the first slot, and the camera module is recessed in the second slot, so as to adjust the center of gravity of the drive module and the camera module in the receiving cavity.

[0012] Furthermore, the camera module includes a lens and a connector. The lens is connected to one side of the connector, and the other side of the connector is connected to the circuit board. A groove is formed on the side of the lens away from the connector. The housing includes an upper housing and a lower housing, which are closed to form the cavity. An opening is formed on one side of the upper housing and the lower housing, and a plurality of support partitions are arranged near the opening. The groove engages with different positions of the support partitions to adjust the center of gravity of the camera module relative to the cavity.

[0013] Furthermore, a plurality of positioning posts are spaced apart on one side of the housing, and the side plate is formed with positioning holes adapted to the positioning posts, so that the rotating shaft is mounted on the rolling bearing and the transmission shaft is engaged with one side of the housing.

[0014] Furthermore, one side of the housing is symmetrically formed with a limiting groove and a through hole through the limiting groove, with the axis of the drive shaft as the dividing line. The side plate is symmetrically provided with lugs with the axis of the drive shaft. The lugs are formed with connecting holes. The lugs are adapted to be inserted into the limiting groove so that the through hole and the connecting hole are coaxial and connected by a fastening assembly.

[0015] Furthermore, each of the two connecting holes has a hexagonal stepped hole formed on one side facing each other. The depth of the hexagonal stepped hole is less than that of the connecting hole, and the width of the hexagonal stepped hole is greater than that of the connecting hole. The fastening assembly includes a bolt and a nut. The bolt passes through the through hole and the connecting hole, and the nut is located in the hexagonal stepped hole, so that the bolt and the nut are fastened between the side plate and the outer shell.

[0016] Furthermore, the multi-view camera also includes a cable, and the side plate has a clearance hole near the hexagonal stepped hole. The cable passes through the clearance hole, and the axis of the clearance hole is parallel to the drive shaft, so that the cable is parallel to the housing cavity and electrically connected to the camera rotation module.

[0017] Furthermore, the drive module also includes a first limiting member and a second limiting member. The first limiting member is located on the side of the housing and the drive source, and the second limiting member is located on the adjacent side of the housing and the drive source, so as to restrict the drive source from being fixed in the position of the first slot.

[0018] Furthermore, the clearance opening is an arc shape that is tilted downwards and arranged at 90° around the drive shaft.

[0019] Furthermore, one side of the housing is provided with an adjacent first mounting surface and a second mounting surface, and the first mounting surface and the second mounting surface are diagonally arranged with respect to the clearance opening.

[0020] Implementing the embodiments of the present invention will have the following beneficial effects:

[0021] 1. In this embodiment, the multi-view camera has a drive shaft that is snapped onto one side of the housing. The camera module is partially embedded in the cavity, and the remaining part of the camera module is exposed in the clearance opening. The other side of the housing forms a rotating shaft, which is rotatably connected to a rolling bearing. Thus, when the drive source drives the drive shaft to rotate, the housing rotates relative to the housing. This ensures that when the camera module slides in the clearance opening, the center of gravity of the camera rotating module is always located on the axis of the drive shaft. This overcomes the limitation of the observation range of ordinary cameras on container trucks in the prior art, while reducing the energy consumption and unstable shaking of the camera adjustment.

[0022] 2. In this embodiment of the multi-view camera, since the cavity includes a first slot and a second slot, the first slot and the second slot are offset and adjusted. The drive module is recessed in the first slot, the camera module is recessed in the second slot, and the drive module is locked in the first slot, thereby adjusting the center of gravity of the drive module and the camera module in the receiving cavity, and thus adjusting the center of gravity of the camera rotation module in the outer shell.

[0023] 3. In this embodiment, the multi-view camera module includes a lens and a connector. The lens is connected to one side of the connector, and the other side of the connector is connected to the circuit board. A groove is formed on the side of the lens away from the connector. The housing includes an upper housing and a lower housing. The upper housing and the lower housing are closed to form a cavity. An opening is formed on one side of the upper housing and the lower housing, and multiple support partitions are arranged near the opening. The groove is engaged with different support partition positions, thereby adjusting the center of gravity position of the camera module relative to the cavity.

[0024] 4. In this embodiment of the multi-view camera, multiple positioning posts are spaced apart on one side of the housing, and positioning holes adapted to the positioning posts are formed on the side plate. On one side of the housing, a limiting groove and a through hole through the limiting groove are symmetrically formed with the axis of the drive shaft as the dividing line. Lugs are symmetrically provided on the side plate with the axis of the drive shaft, and the lugs are formed with connecting holes. Thus, the rotating shaft is mounted on the rolling bearing and the drive shaft is engaged with one side of the housing. In this way, the housing and the side plate are coaxially fastened together through the through holes and connecting holes.

[0025] 5. In this embodiment, the multi-view camera also includes a cable. The side plate has a clearance hole near the hexagonal stepped hole. The cable passes through the clearance hole, and the axis of the clearance hole is parallel to the drive shaft, so that the cable is parallel to the housing cavity and electrically connected to the camera rotation module. The drive module includes a first limiting member and a second limiting member. The first limiting member is located on the side of the housing and the drive source, and the second limiting member is located on the adjacent side of the housing and the drive source, thereby limiting the drive source to be fixed in the position of the first slot, and thus constraining the center of gravity position of the camera rotation module relative to the housing when the drive source rotates. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the multi-view camera according to an embodiment of the present invention;

[0028] Figure 2 This is an exploded view of the multi-view camera described in an embodiment of the present invention;

[0029] Figure 3 This is a front view of the multi-view camera described in an embodiment of the present invention;

[0030] Figure 4 for Figure 3 Sectional view at point AA;

[0031] Figure 5 This is a schematic diagram of the outer casing according to an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the side plate structure according to an embodiment of the present invention;

[0033] Figure 7 This is an exploded view of the camera rotation module described in an embodiment of the present invention;

[0034] Figure 8 This is a schematic diagram of the lower housing structure according to an embodiment of the present invention.

[0035] The components include: 100, multi-view camera; 110, outer shell; 111, side shell; 1111, receiving cavity; 1112, clearance opening; 1113, positioning post; 1114, first mounting surface; 1115, limiting groove; 1116, through hole; 112, side plate; 1121, recess; 1122, positioning hole; 1123, lug; 11231, connecting hole; 11232, hexagonal stepped hole; 1124, clearance hole; 130, rolling bearing; 140, camera rotation module; 141, drive module; 1 411. Drive source; 1412. Drive shaft; 1413. Housing; 14131. Cavity; 14101. First slot; 14102. Second slot; 14132. Rotating shaft; 14133. Upper housing; 14134. Lower housing; 14135. Opening; 14136. Support partition; 1414. First limiting member; 1415. Second limiting member; 142. Camera module; 1421. Lens; 14211. Groove; 1422. Connecting seat; 143. Circuit board; 150. Cable. Detailed Implementation

[0036] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0037] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0039] Please refer to Figures 1-8This invention provides an axisymmetric multi-view camera 100, including a housing 110, a rolling bearing 130, and a camera rotation module 140. The housing 110 includes a side shell 111 and a side plate 112. The side shell 111 forms a receiving cavity 1111 and a clearance opening 1112 through the receiving cavity 1111. The side plate 112 forms a recess 1121, which faces the receiving cavity that covers the housing 110. The outer side of the rolling bearing 130 is engaged in the recess 1121. The camera rotation module 140 includes a drive module 141, a camera module 142, a circuit board 143, and a housing 1413. The drive module 141 includes a drive source 1411 and a transmission shaft 1412. The housing 1413 is movable in the receiving cavity 1111 and has a groove 14131. The drive source 1411 is engaged in the groove 14131. 4131 is used to drive the drive shaft 1412. The drive shaft 1412 passes through the housing 1413 and is snapped and fixed to one side of the outer shell 110 so that the housing 1413 rotates relative to the drive shaft 1412. The camera module 142 is partially embedded in the cavity 14131, and the remaining part of the camera module 142 is exposed in the clearance opening 1112. A rotating shaft 14132 is formed on the other side of the housing 1413. The inner side of the rolling bearing 130 is sleeved on the rotating shaft 14132 so that the rotating shaft 14132 is coaxial with the drive shaft 1412. The circuit board 143 is electrically connected to the drive module 141 and the camera module 142. When the drive source 1411 drives the drive shaft 1412 to rotate, the housing 1413 rotates relative to the outer shell 110 so that the camera module 142 slides in the clearance opening 1112, and the center of gravity of the camera rotating module 140 is always located on the axis of the drive shaft 1412.In specific applications, the housing 110 of the multi-view camera 100 forms a receiving cavity 1111 and a clearance opening 1112 through the receiving cavity 1111. The side plate 112 of the multi-view camera forms a recess 1121, with the recess 1121 of the side plate 112 facing the receiving cavity that covers the housing 110. The circumferential side of the rolling bearing 130 is engaged in the recess 1121. Since the drive shaft 1412 is engaged on one side of the housing 1413, the camera module 142 is partially embedded in the cavity 14131, and the remaining part of the camera module 142 is exposed in the clearance opening 1112. A rotating shaft 14132 is formed on the other side of the housing 1413. 4132 is rotatably connected to the rolling bearing 130, so that when the drive source 1411 drives the transmission shaft 1412 to rotate, the housing 1413 rotates relative to the outer shell 110, and the rotating shaft 14132 is rotatably connected relative to the rolling bearing 130. This ensures that the rotation of the rotating shaft 14132 and the rotating shaft remains coaxial, avoiding the phenomenon of abnormal energy consumption of the drive module 141 due to the asymmetry of the center of the rotating shaft 14132 caused by plastic deformation during the manufacturing of the outer shell 110 and the side plate 112. In particular, since the drive source 1411 on the housing 1413 is a motor, and the output shaft of the motor is the transmission shaft 1412, the motor... The motor is installed in the cavity 14131 of the housing 1413. The drive shaft 1412 is fixed to the outer shell 110, which is mounted on the container truck. This allows the motor body to rotate relative to the drive shaft 1412, thereby causing the camera rotation module 140 to rotate relative to the outer shell 110. A rotating shaft 14132 is formed on the other side of the housing 1413. The outer side of the rolling bearing 130 is engaged with the outer shell 110, and the inner side of the rolling bearing 130 is sleeved on the rotating shaft 14132. Only 2V of voltage is required for low-power operation, enabling the camera rotation module 140 to rotate smoothly. It is worth noting that because the outer shell is injection molded, precision is crucial. The low precision of the rolling bearing 130, on the other hand, can effectively compensate for the low precision of the housing 110. For example, it can compensate for the gap between the housing 110 and the cavity 1121 of the rolling bearing 130, thereby ensuring that the drive shaft 1412 and the rotating shaft 14132 rotate coaxially to avoid shaking when the camera rotating module 140 rotates. In addition, when the camera module 142 slides in the clearance opening 1112, the center of gravity of the camera rotating module 140 is always located on the axis of the drive shaft 1412, solving the problem of the limited field of view of ordinary cameras on container trucks, while reducing the energy consumption and unstable shaking of the camera rotation adjustment.

[0040] In one possible implementation, the cavity 14131 includes a first slot 14101 and a second slot 14102, which are offset from each other. The drive module 141 is recessed in the first slot 14101, and the camera module 142 is recessed in the second slot 14102, so as to adjust the position of the drive module 141 and the camera module 142 at the center of gravity of the receiving cavity. In specific applications, in order to adjust the center of gravity of the functional modules as a whole, the cavity 14131 includes a first slot 14101 and a second slot 14102. The first slot 14101 and the second slot 14102 are staggered and adjacent to each other, so that the relative position relationship of the first slot 14101 and the second slot 14102 can be adjusted according to the actual application. When the drive module 141 is recessed in the first slot 14101 and the camera module 142 is recessed in the second slot 14102, the center of gravity of the drive module 141 and the camera module 142 in the receiving cavity is adjusted. In this way, the overall center of gravity of the camera rotating module 140 is located on the rotation axis, thereby reducing the energy consumption when the camera rotating module 140 rotates relative to the outer shell 110.

[0041] In one possible implementation, the camera module 142 includes a lens 1421 and a connector 1422. The lens 1421 is connected to one side of the connector 1422, and the other side of the connector 1422 is connected to the circuit board 143. A groove 14211 is formed on the side of the lens 1421 away from the connector 1422. The housing 1413 includes an upper housing 14133 and a lower housing 14134. The upper housing 14133 and the lower housing 14134 cover each other to form a cavity 14131. An opening 14135 and a plurality of support partitions 14136 are formed on one side of the upper housing 14133 and the lower housing 14134. The groove 14211 is engaged with different support partitions 14136 to adjust the center of gravity position of the camera module 142 relative to the cavity 14131. In specific applications, to locally adjust the center of gravity position of the camera rotation module 140, since the camera module 142 is partially exposed on the clearance opening 1112 for observation, when the camera module 142 rotates relative to the clearance opening 1112 under the action of the drive source 1411, it is necessary to ensure that the center of gravity position of the camera module 142 relative to the cavity 14131 does not change. Therefore, the camera module 142 includes a lens 1421 and a connector 1422. The lens 1421 is connected to one side of the connector 1422, and the other side of the connector 1422 is connected to the circuit board 143. A groove 14211 is formed on the side of the lens 1421 away from the connector 1422. Additionally, the housing 1413 includes an upper housing 14... The upper housing 14133 and the lower housing 14134 are closed to form a cavity 14131, and an opening 14135 is formed on one side of the upper housing 14133 and the lower housing 14134. The opening 14135 is set towards the clearance opening 1112. A plurality of support partitions 14136 are provided near the opening 14135. The groove 14211 is fastened to different positions of the support partitions 14136, thereby allowing the center of gravity position of the camera module 142 relative to the cavity 14131 to be locally adjusted. This prevents the center of gravity position of the camera module 142 relative to the cavity 14131 from changing when the camera module 142 rotates relative to the clearance opening 1112 under the action of the drive source 1411.

[0042] In one possible implementation, a plurality of positioning posts 1113 are spaced apart on one side of the housing 110, and the side plate 112 is formed with positioning holes 1122 adapted to the positioning posts 1113, so that the rotating shaft 14132 is disposed on the rolling bearing 130 and the transmission shaft 1412 is engaged with one side of the housing 1413. In specific applications, in order to fix the position of the recess 1121 on the side plate 112 relative to the receiving cavity 1111 of the outer shell 110, thereby ensuring that the position of the rolling bearing 130 engaged in the recess 1121 is coaxial with the drive shaft 1412, and thus ensuring that the drive shaft 1412 and the rotating shaft 14132 on the shell 1413 rotate coaxially, a plurality of positioning points are provided at intervals on one side of the outer shell 110, and the side plate 112 is formed with positioning holes 1122 provided for the positioning pins 1113. When the positioning pins 1113 are inserted into the positioning holes 1122, the rotating shaft 14132, the rolling bearing 130 and the drive shaft 1412 are coaxially engaged on one side of the shell 1413.

[0043] In one possible implementation, one side of the housing 110 is symmetrically formed with a limiting groove 1115 and a through hole 1116 through the limiting groove 1115, with the axis of the drive shaft 1412 as the dividing line. The side plate 112 is symmetrically provided with lugs 1123 with the axis of the drive shaft 1412. The lugs 1123 are formed with connecting holes 11231. The lugs 1123 are adapted to be inserted into the limiting groove 1115 so that the through hole 1116 and the connecting hole 11231 are coaxially connected by the fastening assembly 144. In specific applications, in order to improve the fastening between the side plate 112 and the outer shell 110 and to prevent lateral slippage between the side plate 112 and the outer shell 110 due to vibration and other factors, a limiting groove 1115 and a through hole 1116 are symmetrically formed on one side of the outer shell 110 with the axis of the drive shaft 1412 as the dividing line. The side plate 112 is provided with lugs 1123 symmetrically with the axis of the drive shaft 1412. The lugs 1123 are formed with connecting holes 11231. The lugs 1123 are adapted to be inserted into the limiting groove 1115. Thus, the through hole 1116 and the connecting hole 11231 are coaxially connected by the fastening assembly 144. In this way, the mutual connection between the lugs 1123 in the side plate 112 and the limiting groove 1115 of the outer shell 110 prevents the side plate 112 from shifting relative to the outer shell 110.

[0044] In one possible implementation, two connecting holes 11231 are respectively formed with hexagonal stepped holes 11232 on opposite sides. The depth of the hexagonal stepped holes 11232 is less than that of the connecting holes 11231, and the width of the hexagonal stepped holes 11232 is greater than that of the connecting holes 11231. The fastening assembly includes a bolt and a nut. The bolt passes through the through hole 1116 and the connecting hole 11231, and the nut is located in the hexagonal stepped holes 11232, so that the bolt and nut are fastened between the side plate 112 and the outer casing 110. In practical applications, since hexagonal stepped holes 11232 are formed on opposite sides of the connecting hole 11231, and the depth of the hexagonal stepped hole 11232 is less than that of the connecting hole 11231, and the width of the hexagonal stepped hole 11232 is greater than that of the connecting hole 11231, the fastening assembly includes a bolt and a nut. The bolt passes through the through hole 1116 and the connecting hole 11231, and the nut is located in the hexagonal stepped hole 11232, so that the bolt and nut are fastened between the side plate 112 and the outer shell 110, thereby making it easy to fix the side plate 112 to one side of the outer shell 110.

[0045] In one possible implementation, the multi-view camera 100 also includes a cable 150. The side plate 112 has a clearance hole 1124 located near the hexagonal stepped hole 11232. The cable 150 passes through the clearance hole 1124. The axis of the clearance hole 1124 is parallel to the drive shaft 1412, so that the cable 150 is parallelly built into the receiving cavity 1111 and electrically connected to the camera rotation module 140. In specific applications, when the camera rotating module 140 rotates relative to the outer casing 110, the cable 150 connecting the camera rotating module 140 to the outside may become entangled. Therefore, the side plate 112 has a clearance hole 1124 near the hexagonal stepped hole 11232. The cable 150 passes through the clearance hole 1124, and the axis of the clearance hole 1124 is parallel to the drive shaft 1412. Thus, the cable 150 is parallelly built into the receiving cavity 1111 and electrically connected to the camera rotating module 140. In this way, when the camera rotating module 140 rotates relative to the outer casing 110, since the axis of the clearance hole 1124 is parallel to the drive shaft 1412, the cable 150 is parallelly built into the receiving cavity 1111 and electrically connected to the camera rotating module 140, thereby avoiding the phenomenon that the cable 150 becomes entangled, which would increase the rotational damping of the drive source 1411 and consume energy.

[0046] In one possible implementation, the drive module 141 further includes a first limiting member 1414 and a second limiting member 1415. The first limiting member 1414 is located on one side of the housing 1413 and the drive source 1411, and the second limiting member 1415 is located on the adjacent side of the housing 1413 and the drive source 1411, thereby restricting the drive source 1411 from being fixed in the position of the first slot 14101. In specific applications, to prevent the drive source 1411 from shifting between the housing 1413 and the housing 1413 during the rotation of the camera rotation module 140, the drive module 141 further includes a first limiting member 1414 and a second limiting member 1415. The first limiting member 1414 is located on one side of the housing 1413 and the drive source 1411, and the second limiting member 1415 is located on the adjacent side of the housing 1413 and the drive source 1411, thereby restricting the drive source 1411 from being fixed in the position of the first slot 14101 and preventing the drive source 1411 from shifting.

[0047] In one possible implementation, the clearance 1112 is an arc shape that is tilted downwards and surrounds the drive shaft 1412 at a 90° angle. In a specific application, in the multi-view camera 100, the field of view of the lens 1421 is 50-70°, and it is used at the rearview mirror of a special vehicle or the rear of the vehicle body. Therefore, by setting the clearance 1112 as an arc shape that is tilted downwards and surrounds the drive shaft at a 90° angle, the field of view of the lens 1421 can be extended to 5-115°. In addition, the rotation angle of the lens 1421 can be adjusted and switched between 0°, 45° or 90°.

[0048] In one possible implementation, the outer casing 110 has a first mounting surface 1114 and a second mounting surface (not shown) arranged adjacent to each other on one side, and the first mounting surface 1114 and the second mounting surface are diagonally arranged with respect to the clearance opening 1112. In specific applications, since the outer casing 110 has a first mounting surface 1114 and a second mounting surface arranged adjacent to each other on one side, and the first mounting surface 1114 and the second mounting surface are diagonally arranged with respect to the clearance opening 1112, the first mounting surface 1114 can be installed at the rear of the truck bed. By rotating the lens 1421, the view can be switched to the lower view and the rear view of the truck bed. When the second mounting surface is installed at the rear of the truck bed, by rotating the lens 1421, the view can be switched to the view inside the truck bed and the lower view. This allows the driver to easily switch between different views in the cab to observe the goods being moved from the truck bed to the unloading process. It also allows the driver to easily switch the rear view of the truck bed to observe the entry into the warehouse.

[0049] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. An axisymmetric multi-view camera, characterized in that, include: The outer shell includes a side shell and a side plate, the side shell forming a receiving cavity and a clearance opening through the receiving cavity, the side shell or the side plate forming a recess, and the side plate covering the receiving cavity of the side shell; A rolling bearing, wherein the outer side of the rolling bearing is engaged in the cavity; A camera rotation module includes a drive module, a camera module, a circuit board, and a housing. The drive module includes a drive source and a transmission shaft. The housing is movable within a receiving cavity and has a groove. The drive source is engaged in the groove to drive the transmission shaft. The transmission shaft passes through the housing and is engaged and fixed to one side of the outer shell, allowing the housing to rotate relative to the transmission shaft. The camera module is partially embedded in the groove, with the remaining portion exposed in a clearance opening. A rotating shaft is formed on the other side of the housing, and the inner side of a rolling bearing is fitted onto the rotating shaft so that the rotating shaft is coaxial with the transmission shaft. The circuit board is electrically connected to the drive module and the camera module. When the drive source drives the transmission shaft to rotate, the housing rotates relative to the outer shell, allowing the camera module to slide in the clearance opening. The center of gravity of the camera rotation module is close to the axis of the transmission shaft. The cavity includes a first slot and a second slot, which are offset and adjusted. The drive module is recessed in the first slot and the camera module is recessed in the second slot to adjust the center of gravity of the drive module and the camera module in the receiving cavity. The camera module includes a lens and a connector. The lens is connected to one side of the connector, and the other side of the connector is connected to the circuit board. A groove is formed on the side of the lens away from the connector. The housing includes an upper housing and a lower housing. The upper housing and the lower housing cover each other to form the cavity. An opening is formed on one side of the upper housing and the lower housing, and a plurality of support partitions are arranged near the opening. The groove is engaged with different positions of the support partitions to adjust the center of gravity position of the camera module relative to the cavity. The rotating shaft is rotatably connected to the rolling bearing. When the drive source drives the transmission shaft to rotate, the housing rotates relative to the outer shell, and the rotating shaft rotates relative to the rolling bearing. This ensures that the rotation of the rotating shaft and the rotating shaft are kept coaxial, avoiding abnormal energy consumption of the drive module due to the asymmetry of the center of gravity of the rotating shaft caused by plastic deformation during the manufacturing of the outer shell and side plates, which are made of plastic parts.

2. The axisymmetric multi-view camera according to any one of claims 1, characterized in that, The outer casing is provided with a plurality of positioning posts spaced apart on one side, and the side plate is formed with positioning holes adapted to the positioning posts, so that the rotating shaft is mounted on the rolling bearing and the transmission shaft is engaged with one side of the casing.

3. The axisymmetric multi-view camera according to claim 2, characterized in that, One side of the housing is symmetrically formed with a limiting groove and a through hole through the limiting groove, with the axis of the drive shaft as the dividing line. The side plate is symmetrically provided with lugs with the axis of the drive shaft. The lugs are formed with connecting holes. The lugs are adapted to be inserted into the limiting groove so that the through hole and the connecting hole are coaxial and connected by a fastening assembly.

4. The axisymmetric multi-view camera according to claim 3, characterized in that, The two connecting holes face each other and are respectively formed with hexagonal stepped holes. The depth of the hexagonal stepped holes is less than that of the connecting holes, and the width diameter of the hexagonal stepped holes is greater than that of the connecting holes. The fastening assembly includes a bolt and a nut. The bolt passes through the through hole and the connecting hole, and the nut is located in the hexagonal stepped holes, so that the bolt and the nut are fastened between the side plate and the outer shell.

5. The axisymmetric multi-view camera according to claim 4, characterized in that, The multi-view camera also includes a cable. The side plate has a clearance hole near the hexagonal stepped hole. The cable passes through the clearance hole. The axis of the clearance hole is parallel to the drive shaft, so that the cable is parallel to the housing cavity and electrically connected to the camera rotation module.

6. The axisymmetric multi-view camera according to claim 1, characterized in that, The drive module further includes a first limiting member and a second limiting member. The first limiting member is located on the side of the housing and the drive source, and the second limiting member is located on the adjacent side of the housing and the drive source, so as to restrict the drive source to be fixed in the position of the first slot.

7. The axisymmetric multi-view camera according to any one of claims 1, characterized in that, The clearance is an arc shape that is tilted downwards at a 90° angle and surrounds the drive shaft.

8. The axisymmetric multi-view camera according to claim 1, characterized in that, The outer casing has a first mounting surface and a second mounting surface arranged adjacent to each other on one side, and the first mounting surface and the second mounting surface are arranged diagonally opposite to the clearance opening.

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