Lens housing and gimbal

Abstract

A lens housing (10). The lens housing (10) comprises: a housing body (11); a first motor connection position (110) used for connecting to a pitch axis motor (20) and formed at the middle of a side wall of the housing body (11); a first motor mounting position (111) used for mounting of a roll axis motor (30) and formed inside the rear end of the housing body (11); and a cable restraint cavity (113) formed between an inner side wall of the housing body (11) and an outer side wall of a stator in the roll axis motor (30) and used for accommodating a coaxial cable (40). When the lens housing (10) is in use, since the stator of the roll shaft motor (30) and the inner wall of the housing body (11) are relatively stationary, the cable constraint cavity (113) can limit the coaxial cable (40), that is, the coaxial cable (40), when passing through the roll axis motor (30) and then entering the housing body (11), can be constrained and positioned by means of the cable constraint cavity (113) and then introduced into the pitch axis motor (20), so that the coaxial cable (40) between the roll axis motor (30) and the pitch axis motor (20) can be effectively limited, and interference with internal devices of the housing body (11) can be avoided when the roll axis motor (30) rotates, thereby avoiding affecting a lens module, and ensuring the operational stability of a gimbal camera. Further provided is a gimbal.

Description

A lens housing and a gimbal

[0001] This application is based on and claims priority to Chinese Patent Application No. 202423310781.2, filed on December 30, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of gimbal camera technology, specifically to a lens housing and a gimbal. Background Technology

[0003] In common gimbal cameras, the gimbal's support arm mechanism includes a base, a pitch axis motor mount connected to the base via a cantilever for mounting a pitch axis motor, and a lens housing driven by the pitch axis motor. This lens housing is used to mount a roll axis motor and the lens module driven by the roll axis motor. During wiring, the coaxial cable originates from the image sensor circuit board of the lens module, passes through the roll axis motor's shaft, runs along the inner wall of the lens housing to the pitch axis motor, and finally exits from the lens housing after passing through the pitch axis motor. Thus, when the roll axis motor operates and drives the lens module to rotate, the coaxial cable between the roll axis motor and the pitch axis motor will oscillate inside the lens housing due to torque, affecting the normal rotation of the lens module and causing product instability. Application content

[0004] The technical problem to be solved by this application is to provide a lens housing and gimbal that can effectively limit the internal coaxial line.

[0005] To solve the above-mentioned technical problems, according to one aspect of this application, a lens housing is provided, comprising:

[0006] A shell;

[0007] A first motor connection position, for connecting the pitch axis motor, is formed in the middle of the side wall of the housing;

[0008] A first motor mounting position for mounting a roll shaft motor is formed inside the rear end of the housing;

[0009] A cable constraint cavity is formed between the inner wall of the housing and the outer wall of the stator in the roll motor, for accommodating the coaxial cable.

[0010] A further technical solution is as follows: the cable constraint cavity is formed between the inner sidewall of the housing along the direction from the rear end of the housing to the first motor connection position and the outer sidewall of the roll shaft motor stator.

[0011] The further technical solution is as follows: the first motor connection position includes a connection position opening formed on the side wall of the housing, a connection position enclosure extending outward around the connection position opening, and an annular connection plate disposed at the inner end face of the connection position enclosure.

[0012] The further technical solution is as follows: the first motor mounting position includes a mounting support plate located inside the rear end of the housing, the mounting support plate has a through hole, and the mounting support plate has screw holes or through holes formed around its perimeter.

[0013] A further technical solution is as follows: the lens housing also includes a sealing cover, which is located at the rear end of the housing and outside the mounting support plate.

[0014] To address the aforementioned technical problems, according to another aspect of this application, a gimbal is provided, comprising:

[0015] A support arm mechanism includes a base, a pitch axis motor mount connected to the base via a cantilever, and the aforementioned lens housing;

[0016] A pitch axis motor is installed in the pitch axis motor mount, and its rotor is connected to the lens housing.

[0017] A horizontal roller motor is installed inside the housing of the lens housing, and its rotor is connected to the lens module installed inside the housing.

[0018] The coaxial cable is led out from the image sensor board of the lens module, passes through the roll axis motor, enters the housing, is constrained and positioned by the cable constraint cavity, and is then introduced into the pitch axis motor.

[0019] The further technical solution is as follows: the gimbal also includes a yaw axis motor, the rotor of which is connected to the base.

[0020] The beneficial technical effects of this application are as follows: Compared with the prior art, when the lens housing of this application is used, a cable constraint cavity for accommodating the coaxial line is formed between the inner side wall of the housing and the outer side wall of the roll axis motor stator located inside the rear end of the housing. Since the roll axis motor stator and the inner wall of the housing are relatively stationary, the cable constraint cavity can limit the coaxial line. With the setting of the cable constraint cavity, the coaxial line can be constrained and positioned by passing through the roll axis motor and then entering the housing, and then introduced into the pitch axis motor. Thus, the coaxial line between the roll axis motor and the pitch axis motor can be effectively limited. When the roll axis motor rotates, it can prevent interference with the internal components of the housing, avoid adverse effects on the normally operating lens module, and ensure the working stability of the gimbal camera. Attached Figure Description

[0021] Figure 1 is a schematic diagram of a lens housing equipped with a roll axis motor and a pitch axis motor.

[0022] Figure 2 is an exploded view of the structure shown in Figure 1.

[0023] Figure 3 is a schematic diagram of the specific structure of the lens housing.

[0024] Figure 4 is a cross-sectional schematic diagram of the structure shown in Figure 1.

[0025] Figure 5 is a structural schematic diagram of a specific embodiment of the gimbal of this application.

[0026] Reference numerals: 10-Lens housing; 11-Housing; 110-First motor connection position; 1100-Connection position opening; 1101-Connection position enclosure; 1102-Annular connecting plate; 111-First motor mounting position; 1110-Mounting support plate; 1111-Through hole; 1112-Screw hole; 113-Cable constraint cavity; 20-Pitch axis motor; 30-Roll axis motor; 40-Coaxial line; 50-Support arm mechanism; 51-Base; 52-Cantilever; 53-Pitch axis motor mount. Detailed Implementation

[0027] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0028] The lens housing disclosed in this application can be used as part of the support arm structure of a two-axis or three-axis gimbal, for mounting components such as the lens module of a gimbal camera and the roll axis motor of a two-axis or three-axis gimbal. The lens housing is connected to and driven by the pitch axis motor of the two-axis or three-axis gimbal, thereby rotating the lens module to achieve the pitch operation of the lens module; the lens module is connected to and driven by the roll axis motor to achieve the roll operation of the lens module.

[0029] Referring to Figures 1 to 4, which illustrate a specific embodiment of the lens housing 10 of this application. In the embodiment shown in the figures, the lens housing 10 includes a housing 11, a first motor connection position 110 for connecting a pitch axis motor 20 is formed in the middle of the side wall of the housing 11, a first motor mounting position 111 for mounting a roll axis motor 30 is formed inside the rear end of the housing 11, and a cable constraint cavity 113 for accommodating a coaxial cable 40 is formed between the inner side wall of the housing 11 and the outer side wall of the stator of the roll axis motor 30. Specifically, the cable constraint cavity 113 is formed between the inner side wall of the housing 11 along the direction from the rear end of the housing 11 to the first motor connection position 110 and the outer side wall of the stator of the roll axis motor 30. Thus, by setting up the cable constraint cavity 113, the coaxial cable 40 can be constrained and positioned by the cable constraint cavity 113 after passing through the roll axis motor 30 and entering the housing 11. Then, the pitch axis motor 20 is introduced. Since the stator of the roll axis motor 30 and the inner wall of the housing 11 are relatively stationary, the coaxial cable 40 between the roll axis motor 30 and the pitch axis motor 20 can be constrained in the cable constraint cavity 113. When the roll axis motor 30 rotates, the influence of the torque of the coaxial cable 40 can be reduced, avoiding the collision between the rotor of the roll axis motor 30 and the coaxial cable 40, which would affect the normal rotation of the roll axis motor 30, and preventing the coaxial cable 40 from being pulled and broken, affecting signal transmission. This eliminates the influence of the coaxial cable 40 on the normal operation of the lens module when the roll axis motor 30 rotates, ensuring the working stability of the gimbal camera.

[0030] Referring again to Figures 2 and 4, in some embodiments, the first motor connection position 110 includes a connection opening 1100 formed on the side wall of the housing 11, a connection enclosure 1101 extending outward around the connection opening 1100, and an annular connecting plate 1102 disposed at the inner end face of the connection enclosure 1101. In this embodiment, the rotor of the pitch axis motor 20 is connected to the annular connecting plate 1102 to drive the lens housing 10 to rotate, thereby realizing the pitch operation of the lens module installed inside the lens housing 10.

[0031] In some embodiments, the first motor mounting position 111 includes a mounting support plate 1110 located inside the rear end of the housing 11. The mounting support plate 1110 has a through hole 1111 and screw holes 1112 formed around its perimeter. Thus, by passing a screw through the roller motor 30 and screwing it into the screw hole 1112 of the mounting support plate 1110, the roller motor 30 is mounted inside the housing 11. After installation, the coaxial cable 40 passes through the shaft of the roller motor 30 and the through hole 1111, and then enters the cable restraint cavity 113 inside the housing 11 through the through hole 1111. It is understood that in some other embodiments, the screw hole 1112 on the mounting support plate 1110 can be replaced by a through hole. After the screw passes through the through hole of the roller motor 30 and the mounting support plate 1110, it can cooperate with a nut to install the roller motor 30.

[0032] Furthermore, in some other embodiments, the lens housing 10 may also include a sealing cover, which is disposed at the rear end of the housing 11 and located outside the mounting support plate 1110 to seal the lens housing 10, so that when the lens housing 10 is used in a gimbal, the lens module and the roll axis motor 30 can be sealed inside the housing 11.

[0033] Referring to Figure 5, which is a structural schematic diagram of a specific embodiment of the gimbal of this application, and in conjunction with Figures 1 to 4, in the embodiment shown in the figures, the gimbal includes a support arm mechanism 50, a pitch axis motor 20, a roll axis motor 30, and a gimbal control board. The support arm mechanism 50 includes a base 51, a pitch axis motor mount 53 connected to the base 51 via a cantilever 52, and a lens housing 10 as described in the above embodiment. The pitch axis motor 20 is installed in the pitch axis motor mount 53, and its rotor is connected to the first motor connection position 110 of the lens housing 10, so that the lens housing 10 can rotate under the drive of the pitch axis motor 20. The roll axis motor 30 is installed inside the housing 11 of the lens housing 10, and its rotor is connected to the first motor connection position 110 of the lens housing 10. The lens module inside the housing 11 is connected so that the lens module can rotate under the drive of the roll axis motor 30. The coaxial line 40 is led out from the image sensor board of the lens module, passes through the rotating shaft of the roll axis motor 30, bends into the housing 11, and is constrained and positioned by the cable constraint cavity 113. Then it is introduced into the pitch axis motor 20. That is, the cable constraint cavity 113 effectively constrains the coaxial line 40 located between the outer wall of the roll axis motor 30 and the inner wall of the housing 11, ensuring that the coaxial line 40 located in the housing 11 will not interfere with the roll axis motor 30 and the lens module when the roll axis motor 30 is working. This improves the stability of the whole machine and makes processing and assembly convenient.

[0034] Specifically, as shown in Figures 2 and 4, four mounting ears 31 are formed on the outer peripheral wall of the stator of the roll motor 30 near the mounting support plate 1110. During assembly, the stator of the roll motor 23 can be locked to the inner wall of the mounting support plate 1110 by screwing through the mounting ears 232 and the screw holes 1112 on the mounting support plate 1110 and screwing into the screw holes 1112.

[0035] In one embodiment, the gimbal may further include a yaw axis motor, the rotor of which is connected to the base 51. The base 51 can rotate under the drive of the yaw axis motor, thereby driving the lens to rotate.

[0036] In this embodiment, when the gimbal does not include a yaw axis motor, the gimbal is a two-axis gimbal; when the gimbal includes a yaw axis motor, it is a gimbal.

[0037] Other aspects of the gimbal, such as the routing of the coaxial cable after passing through the pitch axis motor, and the control of the yaw axis motor by the gimbal control board, can be addressed using existing technologies and will not be elaborated upon here.

[0038] The above description is merely a preferred embodiment of this application and is not intended to limit the application in any way. Those skilled in the art can make various equivalent changes and improvements based on the above embodiments, and all equivalent changes or modifications made within the scope of the claims should fall within the protection scope of this application.

[0039]

Claims

1. A lens housing, applied to a gimbal, characterized in that, The lens housing includes: A shell; A first motor connection position, for connecting the pitch axis motor, is formed in the middle of the side wall of the housing; A first motor mounting position for mounting a roll shaft motor is formed inside the rear end of the housing; A cable constraint cavity is formed between the inner wall of the housing and the outer wall of the stator in the roll motor, for accommodating the coaxial cable.

2. The lens housing as described in claim 1, characterized in that, The cable constraint cavity is formed between the inner sidewall of the housing along the direction from the rear end of the housing to the first motor connection position and the outer sidewall of the roll shaft motor stator.

3. The lens housing as described in claim 1, characterized in that, The first motor connection position includes a connection position opening formed on the side wall of the housing, a connection position enclosure extending outward around the connection position opening, and an annular connection plate disposed at the inner end face of the connection position enclosure.

4. The lens housing as described in claim 1, characterized in that, The first motor mounting position includes a mounting support plate located inside the rear end of the housing. The mounting support plate has a through hole and screw holes or through holes are formed around its perimeter.

5. The lens housing as described in claim 1, characterized in that, The lens housing also includes a sealing cover, which is located at the rear end of the housing and outside the mounting support plate.

6. A gimbal, characterized in that, The gimbal includes: A support arm mechanism includes a base, a pitch axis motor mount connected to the base via a cantilever, and a lens housing as described in any one of claims 1-5. A pitch axis motor is installed in the pitch axis motor mount, and its rotor is connected to the lens housing. A horizontal roller motor is installed inside the housing of the lens housing, and its rotor is connected to the lens module installed inside the housing. The coaxial cable is led out from the image sensor board of the lens module, passes through the roll axis motor, enters the housing, is constrained and positioned by the cable constraint cavity, and is then introduced into the pitch axis motor.

7. The gimbal as described in claim 6, characterized in that, The gimbal also includes a yaw motor, the rotor of which is connected to the base.

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