WO2020164550A1

WO2020164550A1 - Lens module and camera

Info

Publication number: WO2020164550A1
Application number: PCT/CN2020/075117
Authority: WO
Inventors: 李杨; 颜财盛
Original assignee: 杭州海康威视数字技术股份有限公司
Priority date: 2019-02-14
Filing date: 2020-02-13
Publication date: 2020-08-20

Abstract

Disclosed are a lens module and a camera. The lens module comprises a lens assembly, a first mounting frame, a second mounting frame, and a first driving assembly, wherein the lens assembly comprises a lens. The lens assembly is connected to the first mounting frame. The first mounting frame is rotatably connected to the second mounting frame, and the second mounting frame is configured to be connected to a housing of the camera. The first driving assembly drives the first mounting frame to rotate. The camera comprises a first housing and the lens module, the first housing is provided with a mounting cavity therein, a first window is formed in the first housing, the lens module is arranged in the mounting cavity of the first housing, and the lens is arranged opposite the first window. The position of the lens of the lens module of the present invention is adjustable, such that after the lens module of the present invention is mounted on the camera, when the camera is mounted to an image capturing position, the lens only needs to be roughly aligned with a target to be photographed, the accuracy requirement for a mounting position of the lens is low, and camera mounting is convenient.

Description

Lens module and camera

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on February 14, 2019 with the application number 201910118275.8 and the invention title is "Camera Capture Module and Camera". This application claims to be submitted to China on March 12, 2019 The Patent Office, the application number is 201910185525.X, the priority of the Chinese patent application whose invention name is "lens module and camera", the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the field of camera technology, in particular to lens modules and cameras.

Background technique

The camera includes a casing and a lens module installed in the inner cavity of the casing. The lens module includes a lens. A window is opened on the casing, and the window is arranged opposite to the lens. A transparent protective cover is generally installed on the window.

The lens of the existing camera is fixedly installed in the inner cavity of the casing, and the direction of the lens cannot be adjusted. When installing the camera to the camera position, you need to aim the lens at the shooting target. Usually you need to adjust the bracket to fix the camera in an accurate position. Adjusting the position of the lens takes a long time, especially when the camera is heavy. , It is more difficult to adjust the position of the lens. In summary, when the existing camera is installed at the camera position, position adjustment is time-consuming and laborious, resulting in poor user experience.

Summary of the invention

The technical problem solved by this application is to provide a lens module and a camera that can improve the convenience of camera installation.

The technical solution of this application is as follows:

In the first aspect, an embodiment of the present application provides a lens module, including:

A lens assembly, the lens assembly including a lens;

A first mounting frame, the lens assembly is connected to the first mounting frame;

A second mounting frame, the first mounting frame is rotatably connected with the second mounting frame, and the second mounting frame is used to connect with the camera housing;

The first driving assembly drives the first mounting frame to rotate.

In a possible implementation manner, in the above-mentioned lens module, the first drive assembly drives the first mounting frame to rotate in a first plane, and the lens module further includes a third mounting frame and a second drive Assembly, the second mounting frame is rotatably connected with the third mounting frame, and the second drive assembly drives the second mounting frame to rotate on a second plane; the first plane and the second plane vertical.

In a possible implementation manner, in the above-mentioned lens module, a first driven gear is provided on the first mounting frame, the first drive assembly includes a first drive gear, and the first drive gear and The first driven gear meshes, and the first driven gear is a sector gear.

In a possible implementation manner, in the aforementioned lens module, the rotation angle of the first mounting frame is 0-20 degrees.

In a possible implementation manner, in the above-mentioned lens module, the lens module further includes a first elastic member, and the first elastic member applies to the first driving gear and the first driven gear. A force that drives the first driving gear and the first driven gear to approach each other.

In a possible implementation manner, the manufacturing material of the first elastic member is austenitic stainless steel.

In a possible implementation manner, in the above-mentioned lens module, the first drive assembly is mounted on the second mounting frame, the first elastic member is a torsion spring, and the torsion spring includes a main body, A first elastic arm and a second elastic arm, the first elastic arm is pressed against the second mounting frame, and the second elastic arm is connected with the first mounting frame.

In a possible implementation manner, in the above-mentioned lens module, a first limiting slot is provided on the first mounting frame, and the first elastic arm is in a limiting fit with the first limiting slot, and /Or, a second limiting slot is provided on the second mounting frame, and the second elastic arm is in a limiting fit with the second limiting slot.

In a possible implementation manner, in the above-mentioned lens module, a first rotating shaft is provided on the first mounting frame, a shaft seat is provided on the second mounting frame, and a first shaft is provided in the shaft seat. A shaft hole, the first shaft is rotatably connected with the first shaft hole, the main body has a through hole, and the main body is sleeved and matched with the first shaft or the shaft seat.

In a possible implementation, the first mounting frame is provided with two first rotating shafts, namely a rotating shaft A and a rotating shaft B, and the rotating shaft A and the rotating shaft B are respectively disposed on the On both sides of the first mounting frame, the first elastic member is sleeved on the rotating shaft A and the rotating shaft B.

In a possible implementation manner, in the above-mentioned lens module, a first open end is provided on the first limiting body, and a surface of the first limiting groove pressed by the first elastic arm Is a first pressing surface, the first open end is arranged opposite to the first pressing surface, and/or a second open end is provided on the second limiting groove, and the second limiting groove The surface of the positioning groove pressed by the second elastic arm is a second pressing surface, and the second open end is disposed opposite to the second pressing surface.

In a possible implementation manner, in the above-mentioned lens module, there are two shaft seats, and one of the shaft seats is detachably connected to the second mounting frame.

In a possible implementation manner, in the above-mentioned lens module, a second driven gear is provided on the second mounting frame, and the second drive assembly includes a second drive gear, and the second drive gear and The second driven gear meshes, and the second driven gear is a sector gear.

In a possible implementation manner, in the aforementioned lens module, the rotation angle of the second mounting frame is 0-20 degrees.

In a possible implementation manner, in the above-mentioned lens module, the third mounting frame is provided with an arc-shaped slot, the second mounting frame is connected with a limit arm, and the limit arm is movably arranged In the arc-shaped slot, and the limiting arm is limited by both ends of the arc-shaped slot.

In a possible implementation manner, in the above-mentioned lens module, a second elastic member is provided on the second mounting frame, and a second elastic member is provided on the surface of the third mounting frame opposite to the second elastic member. A damping surface, the second elastic member is pressed on the first damping surface, and the second elastic member is movably arranged on the first damping surface.

In a possible implementation manner, in the above-mentioned lens module, a protrusion is provided on the second elastic member, and the protrusion is pressed onto the first damping surface.

In a possible implementation manner, in the above-mentioned lens module, the surface of the second elastic member that is pressed against the first damping surface is a second damping surface, and the first damping surface and the first damping surface are Both damping surfaces are biting surfaces.

In a second aspect, an embodiment of the present application provides a camera, including a first housing and any of the above-mentioned lens modules, the first housing has a mounting cavity, and the first housing is provided with a first window , The lens module is arranged in the installation cavity of the first housing, and the lens is arranged opposite to the first window.

In a possible implementation manner, in the above-mentioned camera, the lens module is a first camera module, and the camera further includes a rotatable second housing, and the second housing has an installation cavity, A second window is opened on the second housing, a second camera module is installed in the installation cavity of the second housing, the second camera module includes a camera, the camera and the second window Relative settings.

In a third aspect, an embodiment of the present application provides a camera capture module. The capture module includes a module base, a rotating capture part that is rotatably connected to the module base through a rotating shaft, and an elastic buffer sleeved on the rotating shaft. Part, a gear transmission part, and a driving part that is connected to the rotation capture part through the gear transmission part, one end of the elastic buffer part is connected with the rotation capture part, and the other end is connected with the module base.

In a possible implementation, the elastic buffer portion is a torsion spring.

In a possible implementation, the material of the elastic buffer part is austenitic stainless steel.

In a possible implementation, the rotating capture part includes a lens holder and a lens arranged on the lens holder, the lens holder is provided with a first slot, and one end of the elastic buffer part is locked in the first One card slot.

In a possible implementation manner, the module base is provided with a second slot, and one end of the elastic buffer portion is locked in the second slot.

In a possible implementation, the number of rotation shafts is set to two, namely a first rotation shaft and a second rotation shaft, and the first rotation shaft and the second rotation shaft are respectively disposed on the rotation capture On both sides of the part, the elastic buffer part is sleeved on the first rotating shaft and the second rotating shaft.

In a possible implementation, the module base includes a seat body and a shaft sleeve, the shaft sleeve is detachably fixed to the seat body by a first threaded fastener, the shaft sleeve defines a positioning hole, and At least a part of the rotating shaft is located in the positioning hole.

In a possible implementation, the gear transmission portion includes a gear and a rack that mesh with each other, the gear is connected to the driving portion, and the rack is fixed to the rotating capture portion.

In a possible implementation, the rack has an arc structure.

In a possible implementation, the driving part is a motor, and the housing of the driving part is fixed to the module base by a second threaded fastener.

In a fourth aspect, an embodiment of the present application provides a camera, including any one of the aforementioned capture modules.

In a possible implementation manner, the lens module is a first camera module, the camera further includes a rotatable second housing, the second housing has a mounting cavity, and the second housing A second window is opened on the upper side, and a second camera module is installed in the installation cavity of the second housing. The second camera module includes a camera, and the camera is arranged opposite to the second window.

The advantage of the lens module of the present application is that the first mounting frame can be rotated by the driving of the first driving assembly, and the lens assembly rotates with the rotation of the first mounting frame, that is, all of the present application The position of the lens of the lens module is adjustable, so that after the lens module of the present application is installed on the camera, when the camera is installed at the camera position, only the lens needs to be roughly aligned with the target to be photographed. , The requirements for the accuracy of the lens installation position are low. When the camera is shooting, the lens is accurately aligned at the target shooting position. The lens position of the lens module of the present application is adjustable, thereby reducing the requirements for the installation accuracy of the camera when the camera is installed at the camera position, and it is convenient to install the camera.

Description of the drawings

In order to explain the embodiments of the present application and the technical solutions of the prior art more clearly, the following briefly introduces the drawings needed in the embodiments and the prior art. Obviously, the drawings in the following description are only the present For some of the embodiments of the application, for those of ordinary skill in the art, other drawings can be obtained from these drawings without creative work.

FIG. 1 is an exploded view of the lens module of Embodiment 1 of the application;

Figure 2 is a partial enlarged view of Figure 1 at I;

FIG. 3 is an overall view of the lens module according to Embodiment 1 of the application;

Figure 4 is a partial enlarged view of Figure 3 at II;

5 is an overall view of the lens module when the lens of Embodiment 1 of the application is in the upper limit position;

6 is an overall view of the lens module when the lens of Embodiment 1 of the application is in the lower limit position;

FIG. 7 is an exploded view of the second mounting frame and the third mounting frame of Embodiment 2 of the application;

FIG. 8 is an assembly diagram of the second mounting frame and the third mounting frame of Embodiment 2 of the application;

FIG. 9 is a top view of the second mounting frame and the third mounting frame of the second embodiment of the application after being assembled;

10 is an exploded view of the lens module according to Embodiment 2 of the application;

11 is an overall view of the lens module when the lens of Embodiment 2 of the application is at the left extreme position;

12 is an overall view of the lens module when the lens of Embodiment 2 of the application is at the right extreme position;

FIG. 13 is a cross-sectional view of the connection between the limiting arm and the arc-shaped groove in Embodiment 2 of the application;

14 is a cross-sectional view of the connection between the second elastic member and the third mounting frame in Embodiment 2 of the application;

15 is a top view of the connection between the limit arm and the second elastic member and the third mounting frame in Embodiment 2 of the application;

FIG. 16 is an internal structure diagram of a camera according to Embodiment 3 of the application;

FIG. 17 is an external structure diagram of a camera according to Embodiment 3 of the application;

18 is a schematic diagram of the structure of the capture module disclosed in an embodiment of the application;

Fig. 19 is an exploded view of the capture module disclosed in an embodiment of the application.

The names and labels of the parts in the figure are as follows:

Lens module 100, lens assembly 10, lens 11, first mounting frame 20, first driven gear 21, first rotating shaft 22, first limiting body 23, first limiting slot 231, first open end 2311 , The first pressing surface 232, the second mounting frame 30, the second limiting body 31, the second limiting groove 311, the second open end 3111, the second pressing surface 312, the second driven gear 32, the limiting Position arm 33, limit hook 331, second elastic member 34, protrusion 341, shaft seat 35, first shaft hole 351, through hole 36, second shaft 37, first drive assembly 40, first power member 41 , The first drive gear 42, the torsion spring 50, the first elastic arm 51, the second elastic arm 52, the main body 53, the through hole 531, the third mounting frame 60, the arc groove 61, the first damping surface 62, the second shaft Hole 63, limit surface 64, limit surface 641, second drive assembly 70, second power piece 71, second drive gear 72, first connection piece 81, second connection piece 82, third connection piece 83, first The four connectors 84, the fifth connector 85, the camera 200, the first housing 210, the first window 211, the first fill light 212, the second housing 220, the second window 221, and the second fill light 222. Module base 110, seat body 111, sleeve 112, positioning hole 112a, rotating capture part 120, lens holder 121, lens 122, elastic buffer part 130, gear transmission part 140, gear 141, rack 142, drive part 150, rotation The shaft 160, the first threaded fastener 170, and the second threaded fastener 180.

detailed description

In order to make the purpose, technical solutions, and advantages of the present application clearer, the following further describes the present application in detail with reference to the drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

Example 1

As shown in FIGS. 1 to 6, this embodiment discloses a lens module 100. The above-mentioned lens module 100 includes a lens assembly 10, a first mounting frame 20, a second mounting frame 30, and a first driving assembly 40. The lens assembly 10 includes a lens 11. The lens assembly 10 is connected to the first mounting frame 20. The first mounting frame 20 and the second mounting frame 30 are rotatably connected, and the second mounting frame 30 is used to connect with the housing of the camera 200. The first driving assembly 40 drives the first mounting frame 20 to rotate.

The advantage of the lens module 100 of this embodiment is that the first mounting frame 20 of this embodiment can be rotated under the drive of the first driving assembly 40, and the lens assembly 10 can rotate with the rotation of the first mounting frame 20, that is, the The position of the lens 11 in the lens module 100 of the embodiment is adjustable, so that after the lens module 100 of this embodiment is installed on the camera 200, when the camera 200 is installed at the camera position, only the lens 11 needs to be roughly aligned. The target to be photographed is sufficient. Compared with the prior art, the requirement for the accuracy of the installation position of the lens 11 is lower. When the camera 200 is shooting, the first driving component 40 is controlled to rotate by the control device, so that the lens 11 is accurately aligned with the target shooting position. The position of the lens 11 of the lens module 100 of this embodiment is adjustable, thereby reducing the requirements for the installation accuracy of the camera 200 when it is installed at the shooting position, and the installation of the camera 200 is convenient.

In a possible implementation, as shown in FIGS. 1 and 3, a first driven gear 21 is provided on the first mounting frame 20, and the first driving assembly 40 includes a first driving gear 42, a first driving gear 42 It meshes with the first driven gear 21, and the first driven gear 21 is a sector gear. The first driven gear 21 in this embodiment may be a sector gear, so that the first mounting frame 20 can be driven by the first driving gear 42 to rotate within a certain range of angles. Since the first driven gear 21 is a sector gear, the installation space is saved while meeting the requirements of the rotation range of the first mounting frame 20.

The first drive gear 42 is a complete gear. The first driving assembly 40 is installed on the second mounting frame 30. The first driving assembly 40 may further include a first power member 41. For example, the first power member 41 may be an electric motor. The first power member 41 may be connected to the second mounting frame 30 through a second connecting member 82, and the second connecting member 82 may be a screw. The output shaft of the electric motor is connected to the first drive gear 42 and the output shaft of the electric motor can be rotated forward and backward. The rotation of the output shaft of the motor drives the first drive gear 42 to rotate, the first drive gear 42 drives the first driven gear 21 to rotate, and the first driven gear 21 rotates to drive the first mounting frame 20 to rotate. Since the lens assembly 10 is installed on the first On the mounting frame 20, the lens assembly 10 rotates with the rotation of the first mounting frame 20, that is, the lens 11 rotates with the rotation of the first mounting frame 20. Wherein, the first drive assembly 40 can also be installed on a bracket other than the first mounting frame 20 and the second mounting frame 30.

As shown in FIG. 3, in order not to hinder the imaging of the lens 11, a through hole 36 is provided on the second mounting frame 30. The through hole 36 is arranged opposite to the lens 11. It is a circular hole.

In a possible implementation, the rotation angle of the first mounting frame 20 in this embodiment is 0-20 degrees. After the lens module 100 of this embodiment is installed on the camera, taking the ground as a reference, as shown in FIG. 5, the lens 11 of this embodiment can rotate upwards, and the included angle with the horizontal plane reaches 10 degrees. As shown in FIG. 6, the lens 11 of this embodiment can be rotated downward, and the included angle with the horizontal plane reaches 10 degrees. The size of the through hole 36 should be large enough so that the through hole 36 will not block the lens 11 during the entire rotation of the lens 11.

As shown in FIG. 4, in a possible implementation manner, the lens module 100 of this embodiment further includes a first elastic member, which applies a force to the first driving gear 42 and the first driven gear 21 , The force drives the first drive gear 42 and the first driven gear 21 to approach each other. The function of the first elastic member is to eliminate the matching gap between the first drive gear 42 and the first driven gear 21, thereby improving the first The rotation accuracy of the mounting frame 20 further improves the rotation accuracy of the lens 11, so that after the lens module 100 is installed on the camera, the lens 11 can be accurately aligned with the position to be photographed when the camera is shooting. In a possible implementation manner, the manufacturing material of the first elastic member is austenitic stainless steel, which has the advantages of high toughness, good plasticity, simple structure, and easy processing.

As shown in Figures 3 and 4, in a possible implementation, the first drive assembly 40 is mounted on the second mounting frame 30, the first elastic member is a torsion spring 50, and the torsion spring 50 includes a main body 53 and a second mounting frame. An elastic arm 51 and a second elastic arm 52. The first elastic arm 51 is pressed against the second mounting frame 30, and the second elastic arm 52 is connected to the first mounting frame 20. The torsion spring 50 has a simple structure, low cost, and convenient installation.

As shown in Figures 2 and 3, in a possible implementation manner, a first limiting body 23 is provided on the first mounting frame 20, and a first limiting groove 231 is provided on the first limiting body 23. An elastic arm 51 is in position-limiting cooperation with the first limiting slot 231, and the connection and disassembly of the first elastic arm 51 and the first mounting frame 20 are relatively convenient. In a possible implementation, in order to further improve the convenience of connecting and disassembling the first elastic arm 51 and the first mounting frame 20. The first limiting body 23 is provided with a first open end 2311, the surface of the first limiting groove 231 pressed by the first elastic arm 51 is a first pressing surface 232, and the first open end 2311 is connected to the first pressing surface 232. The pressing surfaces 232 are arranged oppositely.

3 and 4, the second mounting frame 30 is provided with a second limiting body 31, the second limiting body 31 is provided with a second limiting slot 311, the second elastic arm 52 and the second limiting The slot 311 is in position-limiting cooperation, and the connection and disassembly of the second elastic arm 52 and the second mounting frame 30 are relatively convenient. In a possible implementation, in order to further improve the convenience of connecting and disassembling the second elastic arm 52 and the second mounting frame 30. The second limiting groove 311 is provided with a second open end 3111. The surface of the second limiting groove 311 pressed by the second elastic arm 52 is the second pressing surface 312. The second open end 3111 is connected to the second pressing surface 312. The pressing surfaces 312 are arranged oppositely.

As shown in Figure 1, both sides of the first mounting frame 20 are provided with a first rotating shaft 22, correspondingly, the second mounting frame 30 is provided with two shaft seats 35, and the first shaft is provided in the shaft seat 35. In the hole 351, one first shaft 22 is rotatably connected with one of the first shaft holes 351, and the other first shaft 22 is rotatably connected with the other first shaft hole 351. The outer end of the first rotating shaft 22 has a threaded hole, and the inner end of the first connecting member 81 is threadedly connected to the threaded hole. The outer end of the first connecting member 81 has a larger size and is limited outside the first shaft hole 351. The first shaft 22 and the first shaft hole 351 are connected together by the first connecting member 81, and the first shaft 22 can rotate in the first shaft hole 351. The first connecting member 81 may be a screw.

The main body 53 of the torsion spring 50 has a perforation 531. The main body 53 is sleeved and matched with the first rotating shaft 22 or the shaft seat 35. It is convenient to install the torsion spring 50, and no additional installation structure is needed to install the torsion spring 50, thereby saving space. And production process. The torsion spring 50 may be a metal spring.

In a possible implementation, the first mounting frame 20 is provided with two first rotating shafts 22, which are a rotating shaft A and a rotating shaft B, respectively. The rotating shaft A and the rotating shaft B are respectively disposed on the first mounting frame 20. On both sides, the rotation axis A and the rotation axis B are fitted with first elastic parts. The first elastic member is fitted on the moving shaft A and the rotating shaft B to apply force to the first mounting frame 20 at the same time, so the cushioning effect is better.

As shown in FIG. 1, in order to facilitate the installation of the two first rotating shafts 22 of the second mounting frame 30 into the two first shaft holes 351 of the third mounting frame 60, in a possible implementation manner, this embodiment One of the shaft base 35 is detachably connected to the second mounting frame 30. When installing, first connect one of the first rotating shafts 22 to one of the first shaft holes 351, then connect the other first rotating shaft 22 to the first shaft hole 351 of the detachable shaft base 35, and finally connect the detachable shaft The seat 35 is connected to the second mounting frame 30 through a connecting piece. Since one of the shaft seats 35 is detachably connected to the second mounting frame 30, it is also convenient to separate the first mounting frame 20 and the second mounting frame 30 when repairing or replacing parts.

Example 2

As shown in FIGS. 1-15, the lens module 100 of this embodiment includes the lens module 100 of Embodiment 1. The lens module 100 of this embodiment further includes a third mounting frame 60 and a second drive assembly 70. The driving assembly 40 drives the first mounting frame 20 to rotate on the first plane, the second mounting frame 30 and the third mounting frame 60 are rotatably connected, and the second driving assembly 70 drives the second mounting frame 30 to rotate on the second plane. The first plane is perpendicular to the second plane. For example, after the lens module 100 is installed on the camera, the first plane may be a plane perpendicular to the ground, and the second plane may be a plane horizontal to the ground.

As shown in FIG. 10, a second rotating shaft 37 is provided on the surface of the second mounting frame 30 facing the third mounting frame 60. Accordingly, the third mounting frame 60 may be provided with a second shaft passing through the third mounting frame 60. A hole 63, the second rotating shaft 37 and the second shaft hole 63 are rotatably connected.

The first mounting frame 20 can be made of plastic material. The second mounting frame 30 may be made of plastic material. The shaft base 35 can be made of plastic material. The third mounting frame 60 may be made of plastic material.

As shown in FIGS. 7 and 8, the third connecting member 83 has a disc-shaped structure, and a mounting hole is provided on the third connecting member 83. The fourth connecting member 84 passes through the mounting hole to connect the third connecting member 83 and the second rotating shaft 37 together, and the third connecting member 83 is restricted outside the second shaft hole 63. The third connecting member 83 and the fourth connecting member 84 are used to connect the second rotating shaft 37 and the second shaft hole 63, and the second rotating shaft 37 and the second shaft hole 63 are rotatably connected. The fourth connecting member 84 may be a screw.

The advantage of the lens module 100 of this embodiment is that when the first driving component 40 is working, the lens 11 is finally driven to rotate in the first plane. The second driving assembly 70 drives the second mounting frame 30 to rotate on the second plane. Since the first mounting frame 20 and the second mounting frame 30 are connected together, and the lens module 100 and the first mounting frame 20 are connected together, when the When the second driving assembly 70 works, the lens 11 is driven to rotate in the second plane. Therefore, the lens 11 of this embodiment can rotate in two mutually perpendicular planes. Compared with the lens 11 of the first embodiment, the lens 11 of this embodiment has a larger adjustable range and adjustable precision.

As shown in Figure 9, in a possible implementation manner, a second driven gear 32 is provided on the second mounting frame 30, and the second drive assembly 70 includes a second drive gear 72. The driven gear 32 meshes, and the second driven gear 32 is a sector gear. The second driven gear 32 in this embodiment is a sector gear, so that the second mounting frame 30 can be driven by the second driving gear 72 to rotate within a certain range of angles. Since the second driven gear 32 is a sector gear, it saves installation space while meeting the requirements of the rotation range of the second mounting frame 30. At the same time, the sector gear can limit the adjustment range to prevent equipment damage due to adjustment transition. .

The second drive gear 72 is a complete gear. The second driving assembly 70 is installed on the third mounting frame 60. The second driving assembly 70 further includes a second power member 71, which is connected to the third mounting frame 60 through a fifth connecting member 85, and the fifth connecting member 85 may be a screw. For example, the second power part 71 may be an electric motor. The output shaft of the electric motor is connected to the second drive gear 72, and the output shaft of the electric motor can be rotated forward and backward. The rotation of the output shaft of the motor drives the second driving gear 72 to rotate, the second driving gear 72 drives the second driven gear 32 to rotate, and the second driven gear 32 rotates to drive the second mounting frame 30 to rotate. Wherein, the second drive assembly 70 can also be installed on other brackets other than the second mounting frame 30 and the third mounting frame 60.

In a possible implementation, the rotation angle of the second mounting frame 30 in this embodiment is 0-20 degrees. After the lens module 100 of this embodiment is installed on the camera, the centerline of the through hole 36 is used as a reference. As shown in FIG. 11, the lens 11 of this embodiment can rotate to the left and is aligned with the centerline of the through hole 36. The included angle reaches 10 degrees. As shown in FIG. 12, the lens 11 of this embodiment can rotate to the right, and the included angle with the center line of the through hole 36 reaches 10 degrees. The size of the through hole 36 should be large enough so that the through hole 36 will not block the lens 11 during the entire rotation of the lens 11.

As shown in Figure 9, in a possible implementation, the third mounting frame 60 is provided with an arc-shaped slot 61, the second mounting frame 30 is connected to a limit arm 33, and the limit arm 33 is movably arranged on the arc. In the groove 61, and the limit arm 33 is restricted by the two ends of the arc groove 61, so that the rotation range of the second mounting frame 30 in the second plane can be accurately controlled. As shown in FIG. 13, a limit hook 331 is provided on the limit arm 33, and the limit hook 331 is used to prevent the limit arm 33 from detaching from the arc groove 61. The third mounting frame 60 is provided with a limiting portion 64 that cooperates with the limiting hook 331. The surface of the limiting portion 64 surrounding the arc-shaped groove 61 is the limiting surface 641, and the limiting hook 331 is limited by the limiting surface 641. Face 641 limit. The number of limit arms 33 may be two, and the two limit arms 33 are symmetrically arranged. When the third mounting frame 60 rotates to the left to the left limit position, the left limit arm 33 is limited by the left end of the arc-shaped slot 61. When the third mounting frame 60 rotates to the right limit position, the right limit arm 33 is limited by the right end of the arc groove 61.

In a possible implementation, a second elastic member 34 is provided on the second mounting frame 30, and the second elastic member 34 will move with the movement of the second mounting frame 30. A first damping surface 62 is provided on the surface of the third mounting frame 60 opposite to the second elastic member 34, the second elastic member 34 is pressed against the first damping surface 62, and the second elastic member 34 is movably disposed on the first damping surface 62. A damping surface 62. The second elastic member 34 is beneficial to eliminate the gap between the second driving gear 72 and the second driven gear 32, thereby improving the rotation accuracy of the second mounting frame 30 in the second plane, thereby improving the rotation accuracy of the lens 11. After the lens module 100 is installed on the camera, the lens 11 can be accurately aligned with the position to be shot when the camera is shooting.

As shown in FIG. 14, in a possible embodiment, the second elastic member 34 is provided with a protrusion 341, and the protrusion 341 is pressed against the first damping surface 62, so that the second elastic member can be reduced. The mating area between 34 and the first damping surface 62 enables relative movement between the second elastic member 34 and the first damping surface 62 and has a suitable damping force. As shown in FIG. 15, the number of the second elastic members 34 in this embodiment may be two, and the two second elastic members 34 are symmetrically arranged. The second elastic member 34 has elasticity. For example, the second elastic member 34 may be made of plastic.

In a possible implementation, the surface of the second elastic member 34 that is pressed against the first damping surface 62 is the second damping surface, because the protrusion 341 of the second elastic member 34 in this embodiment is pressed against the first damping surface. On a damping surface 62, therefore, the surface where the protrusion 341 is attached to the first damping surface 62 is the second damping surface. Both the first damping surface 62 and the second damping surface are bitten surfaces, which are beneficial to increase the damping force between the first damping surface 62 and the second damping surface, and also make the first damping surface 62 and the second damping surface The damping force is relatively stable, so that the rotation of the second mounting frame 30 has no sense of stagnation and is relatively stable. Both the first damping surface 62 and the second damping surface may be surfaces formed by biting processing.

Example 3

As shown in FIG. 16, this embodiment discloses a camera 200. The camera 200 includes a first housing 210 and the lens module 100 of the second embodiment. The first housing 210 has a mounting cavity, and the first housing 210 A first window 211 is opened on the upper side, the lens module 100 is disposed in the installation cavity of the first housing 210, and the lens 11 is disposed opposite to the first window 221.

Both the first power part 41 and the second power part 71 of this embodiment can be signal connected to the control circuit board of the camera 200. The camera 200 can be provided with an angle adjustment button or a knob, and the angle adjustment button or knob is used to control the lens 11 Rotate.

The advantage of the camera 200 of this embodiment is that the first mounting frame 20 can be rotated by the driving of the first driving assembly 40, and the lens assembly 10 rotates with the rotation of the first mounting frame 20, that is, the lens module 100 of this embodiment The position of the lens 11 is adjustable, so that when the camera 200 is installed at the shooting position, the lens 11 only needs to be roughly aligned with the target to be photographed, and the accuracy of the installation position of the lens 11 is low. When the camera 200 is shooting, the first driving assembly 40 can be controlled to rotate by the control device, so that the lens 11 can be accurately aimed at the target shooting position. The position of the lens 11 of the lens module 100 of this embodiment is adjustable, thereby reducing the requirements for the installation accuracy of the camera 200 when it is installed at the shooting position, and the installation of the camera 200 is convenient.

As shown in FIG. 17, the lens module 100 is a first camera module, and the camera 200 further includes a rotatable second housing 220. The second housing 220 has a mounting cavity therein, and the second housing 220 is provided with a second Window 221, a second camera module is installed in the installation cavity of the second housing 220, the second camera module includes a camera, and the camera is disposed opposite to the second window 221.

The lens module 100 can be used for global monitoring, and the second camera module can be used for detailed monitoring.

Both sides of the first window 211 are provided with first light supplement lamps 212, and the first light supplement lamps 212 are used to supplement light to the lens 11 of the lens module 100 when the lens module 100 is taking a picture. Both sides of the second window 221 are provided with second light supplement lamps 222, and when the second camera module is taking pictures, the second light supplement lamps 222 are used to supplement light for the camera of the second camera module.

The embodiment of the present application discloses a camera, and the camera may specifically be a cylindrical camera. The camera specifically includes a capture module, as shown in FIG. 18 and FIG. 19, the capture module includes a module base 110, a rotating capture part 120 connected to the module base 110 by a rotating shaft 160, and an elastic buffer part 130 sleeved on the rotating shaft 160 , The gear transmission part 140 and the driving part 150 which is connected to the rotating capture part 120 through the gear transmission part 140. One end of the elastic buffer portion 130 is connected to the rotating snapping portion 120, and the other end is connected to the module base 110, and a spiral structure is arranged in the middle portion, and the spiral structure is sleeved on the rotating shaft 160. Specifically, the spiral structure can be set in one turn, two turns or even more turns. The rotating capture part 120 may specifically include a lens holder 121 and a lens 122 arranged on the lens holder 121. The rotating shaft 160 may be connected to the lens holder 121. The driving part 150 may directly drive the lens holder 121 to rotate. The lens 122 may be a telephoto lens or Wide-angle lens, etc., this application does not limit this.

When the above-mentioned capture module is used, the driving part 150 can drive the rotating capture part 120 to work through the gear transmission part 140. Since the elastic buffering part 130 is connected with the rotating capture part 120 and the module base 110 at the same time, the rotating capture part 120 will be elastic The force applied by the buffer part 130 can overcome the gravity and inertia of the rotating capture part 120 itself, make the movement of the rotating capture part 120 more stable, and prevent collision when the rotating capture part 120 rotates, thereby extending the work of the capture module life. At the same time, it can eliminate the tooth gap and achieve the effect of vibration reduction.

The above-mentioned elastic buffer portion 130 may be specifically configured as a torsion spring, so as to facilitate the installation of the elastic buffer portion 130 and at the same time produce a better buffer effect. The manufacturing material of the torsion spring can be austenitic stainless steel, which has the advantages of high toughness, good plasticity, simple structure and easy processing.

There are many ways to connect the elastic buffering portion 130 and the rotating snapping portion 120. For example, one end of the elastic buffering portion 130 can be directly welded to the rotating snapping portion 120, but setting in this way will cause the elastic buffering portion 130 to be disassembled and assembled. Difficulty, there will be a problem that the elastic buffer 130 is inconvenient to replace. Therefore, in order to simplify the disassembly and assembly operations of the elastic buffer portion 130 and optimize the maintainability of the elastic buffer portion 130, a first slot may be provided on the lens holder 121, and one end of the elastic buffer portion 130 is locked in the first slot . When installing the elastic buffer portion 130, it is only necessary to apply a force to the elastic buffer portion 130 to deform it so that one end of the elastic buffer portion 130 enters the first slot, thereby completing the elastic buffer portion 130 and the rotating capture portion 120 connection. When the elastic buffer portion 130 is disassembled, a force is also applied to the elastic buffer portion 130 to deform it so that one end of the elastic buffer portion 130 can escape from the first slot, thereby completing the separation of the elastic buffer portion 130 and the rotating snap portion 120 . It can be seen that the installation operation of the elastic buffer portion 130 is relatively simple, and the structure of the elastic buffer portion 130 and the rotating capture portion 120 will not be damaged during the disassembly and assembly process, which is more convenient for maintenance.

Similarly, a second slot can be provided on the module base 110, and one end of the elastic buffer portion 130 is locked in the second slot. With this arrangement, the connection and disassembly operations between the elastic buffer portion 130 and the module base 110 are relatively easy to implement, and the structure of the module base 110 will not be damaged when the elastic buffer portion 130 is removed, which is more convenient for maintenance. In a possible implementation, a first slot can be provided on the lens holder 121, and a second slot can be provided on the module base 110 at the same time. One end of the elastic buffer part 130 is locked in the first slot and the other end is locked. In the second card slot, to further strengthen the above effect.

In order to make the rotation of the rotating capture part 120 more stable, two rotating shafts 160 may be provided. The two rotating shafts 160 are respectively a first rotating shaft and a second rotating shaft. The first rotating shaft and the second rotating shaft are respectively It is arranged on both sides of the rotating capture part 120. At this time, the elastic buffer 130 can be fitted only on the first rotating shaft, or the elastic buffer 130 can be fitted only on the second rotating shaft, or the elastic buffer can be fitted on both the first rotating shaft and the second rotating shaft at the same time.部130. When the last setting method is adopted, the elastic buffer portions 130 installed on the first rotation shaft and the second rotation shaft can simultaneously apply force to the rotation capture portion 120, so the buffer effect is better.

In the embodiment of the present application, the module base 110 may include a seat body 111 and a shaft sleeve 112, and the shaft sleeve 112 is detachably fixed to the seat body 111 by a first threaded fastener 170. The sleeve 112 defines a positioning hole 112a, and at least a part of the rotating shaft 160 is located in the positioning hole 112a. Since the rotating shaft 160 needs to bear a relatively large force, the force on the shaft sleeve 112 will also be relatively large, resulting in a relatively high replacement rate of the shaft sleeve 112. By fixing the sleeve 112 on the base 111 by the first threaded fastener 170, the sleeve 112 can be easily replaced, and the maintainability of the entire capture module is better. In addition, the shaft sleeve 112 can be separately configured as a structure with higher structural strength, so that its ability to withstand external forces is enhanced, and thus is not prone to damage, so that the setting will not increase the cost of the capture module too much. Specifically, the first threaded fastener 170 here may be provided as one or more, which may specifically be screws.

In order to transmit the driving force more stably, the gear transmission portion 140 may include a gear 141 and a rack 142 that are engaged with each other. The gear 141 is connected to the driving portion 150. The rack 142 is fixed to the rotating capture portion 120, specifically, to the lens holder 121 . The gear 141 can specifically be sleeved on the output shaft of the driving part 150, so the driving part 150 can drive the gear 141 to rotate, and the gear 141 then drives the rack 142 to move, thereby driving the rotating capture part 120 to rotate. Further, the rack 142 may have an arc structure, so that the gear 141 and the rack 142 can maintain the meshing state more accurately. The radian of the rack 142 may be determined according to factors such as the coverage of the rotating capture portion 120, which is not limited in the embodiment of the present application.

In an alternative embodiment, in order to drive the gear transmission part 140 to move more stably, the driving part 150 may be configured as a motor, and the housing of the driving part 150 is fixed to the module base 110 through the second threaded fastener 180 so as to For the disassembly and assembly of the driving part 150 and subsequent maintenance. The second threaded fastener 180 here may be provided as one or more, which may specifically be screws.

The above embodiments of this application focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the conciseness of the text, here is No longer.

The above are only the preferred embodiments of this application and are not intended to limit this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in this application Within the scope of protection.

Claims

A lens module (100), characterized in that it comprises:

A lens assembly (10), the lens assembly (10) includes a lens (11);

A first mounting frame (20), the lens assembly (10) is connected to the first mounting frame (20);

The second mounting frame (30), the first mounting frame (20) is rotatably connected with the second mounting frame (30), and the second mounting frame (30) is used to connect to the camera (200) housing Body connection

The first driving assembly (40) drives the first mounting frame (20) to rotate.
The lens module (100) according to claim 1, wherein the first drive assembly (40) drives the first mounting frame (20) to rotate on a first plane, and the lens module (100) ) Further includes a third mounting frame (60) and a second drive assembly (70), the second mounting frame (30) is rotatably connected with the third mounting frame (60), and the second drive assembly ( 70) Drive the second mounting frame (30) to rotate on a second plane; the first plane is perpendicular to the second plane.
The lens module (100) according to claim 1 or 2, characterized in that a first driven gear (21) is provided on the first mounting frame (20), and the first driving assembly (40) It includes a first driving gear (42), the first driving gear (42) meshes with the first driven gear (21), and the first driven gear (21) is a sector gear.
The lens module (100) according to claim 3, wherein the rotation angle of the first mounting frame (20) is 0-20 degrees.
The lens module (100) according to claim 3, characterized in that, the lens module (100) further comprises a first elastic member, and the first elastic member opposes the first drive gear (42) and The first driven gear (21) exerts a force which drives the first driving gear (42) and the first driven gear (21) to approach each other.
The lens module (100) according to claim 5, wherein the first elastic member is made of austenitic stainless steel.
The lens module (100) according to claim 5, wherein the first drive assembly (40) is mounted on the second mounting frame (30), and the first elastic member is a torsion spring ( 50), the torsion spring (50) includes a main body (53), a first elastic arm (51) and a second elastic arm (52), the first elastic arm (51) is pressed against the second mounting On the frame (30), the second elastic arm (52) is connected with the first mounting frame (20).
The lens module (100) according to claim 7, wherein the first mounting frame (20) is provided with a first limiting slot (231), and the first elastic arm (51) is connected to the The first limiting slot (231) is in position-limiting cooperation, and/or, the second mounting frame (30) is provided with a second limiting slot (311), and the second elastic arm (52) and the The second limit slot (311) has a limit fit.
The lens module (100) according to claim 8, wherein the first mounting frame (20) is provided with a first rotating shaft (22), and the second mounting frame (30) is provided with a shaft Seat (35), the shaft seat (35) is provided with a first shaft hole (351), the first rotating shaft (22) is rotatably connected with the first shaft hole (351), the main body (53) has a perforation (531), and the main body (53) is sleeved and matched with the first rotating shaft (22) or the shaft seat (35).
The lens module (100) according to claim 9, wherein the first mounting frame (20) is provided with two first rotating shafts (22), which are a rotating shaft A and a rotating shaft B, respectively. The rotating shaft A and the rotating shaft B are respectively arranged on both sides of the first mounting frame (20), and the first elastic member is sleeved on the rotating shaft A and the rotating shaft B.
The lens module (100) according to claim 8, wherein a first open end (2311) is provided on the first limiting body (23), and the first limiting slot (231) The surface pressed by the first elastic arm (51) is a first pressing surface (232), and the first open end (2311) is arranged opposite to the first pressing surface (232), and/ Or, the second limit groove (311) is provided with a second open end (3111), and the surface of the second limit groove (311) pressed by the second elastic arm (52) is the first Two pressing surfaces (312), the second open end (3111) and the second pressing surface (312) are arranged oppositely.
The lens module (100) according to claim 9, characterized in that there are two shaft seats (35), one of the shaft seats (35) and the second mounting frame (30) Removably connected.
The lens module (100) according to claim 2, wherein a second driven gear (32) is provided on the second mounting frame (30), and the second driving assembly (70) includes a Two driving gears (72), the second driving gear (72) meshes with the second driven gear (32), and the second driven gear (32) is a sector gear.
The lens module (100) according to claim 13, wherein the rotation angle of the second mounting frame (30) is 0-20 degrees.
The lens module (100) according to claim 14, wherein the third mounting frame (60) is provided with an arc-shaped slot (61), and the second mounting frame (30) is connected with a limited position Arm (33), the limiting arm (33) is movably arranged in the arc-shaped slot (61), and the limiting arm (33) is limited by both ends of the arc-shaped slot (61) Bit.
The lens module (100) according to claim 13, wherein a second elastic member (34) is provided on the second mounting frame (30), and the third mounting frame (60) is connected to the A first damping surface (62) is provided on the opposite surface of the second elastic member (34), the second elastic member (34) is pressed against the first damping surface (62), and the second elastic A piece (34) is movably arranged on the first damping surface (62).
The lens module (100) according to claim 16, characterized in that a protrusion (341) is provided on the second elastic member (34), and the protrusion (341) is pressed against the On the first damping surface (62).
The lens module (100) according to claim 16 or 17, characterized in that the surface of the second elastic member (34) that is pressed against the first damping surface (62) is a second damping surface, The first damping surface (62) and the second damping surface are both bitten surfaces.
A camera (200), comprising a first housing (210) and the lens module (100) according to any one of claims 1-18, and the first housing (210) has a The first housing (210) is provided with a first window (211), the lens module (100) is arranged in the installation cavity of the first housing (210), and the lens (11) ) Is arranged opposite to the first window (221).
The camera (200) according to claim 19, wherein the lens module (100) is a first camera module, and the camera (200) further comprises a rotatable second housing (220), The second housing (220) has a mounting cavity, a second window (221) is opened on the second housing (220), and a second window (221) is installed in the mounting cavity of the second housing (220). The camera module, the second camera module includes a camera, and the camera is arranged opposite to the second window (221).
A camera capture module, characterized in that the capture module includes a module base, a rotating capture part connected to the module base rotatably via a rotating shaft, an elastic buffer part sleeved on the rotating shaft, a gear transmission part, and Through the drive part that is connected to the gear transmission part and the rotation capture part in transmission, one end of the elastic buffer part is connected to the rotation capture part, and the other end is connected to the module base.
22. The capture module of claim 21, wherein the elastic buffer portion is a torsion spring.
The snapping module according to claim 21, wherein the material of the elastic buffer part is austenitic stainless steel.
The capture module according to claim 21, wherein the rotating capture part comprises a lens holder and a lens arranged on the lens holder, the lens holder is provided with a first slot, and one end of the elastic buffer part It is stuck in the first card slot.
22. The capture module according to claim 21, wherein the module base is provided with a second slot, and one end of the elastic buffer portion is locked in the second slot.
The capture module according to claim 21, wherein the rotation axis is provided in two, namely a first rotation axis and a second rotation axis, and the first rotation axis and the second rotation axis are respectively provided On both sides of the rotating capture part, the elastic buffer part is sleeved on the first rotating shaft and the second rotating shaft.
The capture module according to claim 21, wherein the module base comprises a seat body and a shaft sleeve, the shaft sleeve is detachably fixed to the seat body by a first threaded fastener, and the shaft sleeve A positioning hole is opened, and at least a part of the rotating shaft is located in the positioning hole.
22. The capture module according to claim 21, wherein the gear transmission part comprises a gear and a rack that mesh with each other, the gear is connected to the driving part, and the rack is fixed to the rotating capture part.
The capture module of claim 28, wherein the rack has an arc structure.
The capture module according to any one of claims 11-19, wherein the driving part is a motor, and the housing of the driving part is fixed on the module base by a second threaded fastener.
A video camera, characterized by comprising the capture module according to any one of claims 21-30.