Electric actuator and camera device

Abstract

The utility model belongs to the technical field of electric actuators, and discloses an electric actuator and a camera device, the electric actuator and the camera device comprise a fixing member, an overturning member, a speed reducer and a driving member, the overturning member is rotatably connected with the fixing member, and a mounting position for fixing a device is formed on one side deviating from a rotation axis; the speed reducer is connected with the fixing piece and provided with an input shaft and an output shaft, and the output shaft is coaxial with the rotating axis of the overturning piece and connected with the overturning piece. The driving piece is connected with the fixing piece and an input shaft of the reducer and used for driving the overturning piece to rotate through the reducer. According to the electric actuator disclosed by the utility model, the number of exposed parts is small, and noise generated when the parts are turned over can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric actuators, in particular to an electric actuator and a camera device. Background Art

[0002] An electric actuator is a device that can output torque and moment to control the rotation or flip of the equipment.

[0003] Publication No. CN210912264U discloses a hidden car tailgate camera assembly, comprising a camera mount and a camera body. The camera mount is fixed to the inner side of the tailgate sheet metal, and the camera body is rotatably mounted on the camera mount. The camera assembly also includes a linkage mechanism and an actuator. One end of the linkage mechanism is connected to the camera body, and the other end of the linkage mechanism is connected to the actuator. When the actuator is in operation, the actuator drives the camera body to rotate through the linkage mechanism. The linkage mechanism includes a push block, a first swing arm, and a second swing arm. The push block is respectively connected to the actuator and the lower end of the first swing arm. The upper end of the first swing arm is connected to the lower end of the second swing arm, and the upper end of the second swing arm is connected to the camera body. A track groove is vertically provided on the push block. The lower end of the first swing arm is a first arm shaft, which snaps into the track groove.

[0004] When the camera assembly needs to be flipped, the actuator's push block moves linearly, causing the first arm's first arm axis to move downward within the push block's track groove, resulting in the first arm moving forward and rotating counterclockwise. The square slot in the first arm then mates with the square insert on the second arm, driving the second arm forward and rotating counterclockwise simultaneously. The second arm's second arm axis then presses against the sliding surface on the camera body, driving the camera body to rotate. The actuator relies on the exposed arm and push block structure to drive the camera's rotation, making it difficult to reduce noise during operation. Utility Model Content

[0005] The purpose of the present invention is to overcome the above technical deficiencies and to provide an electric actuator to solve the technical problem in the prior art that the noise during the operation of the swing device through the swing arm and the push block structure is difficult to reduce.

[0006] In order to achieve the above technical purpose, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides an electric actuator, comprising:

[0008] A flip member, rotatably connected to the fixing member, and having a mounting position for fixing a device formed on a side deviating from the rotation axis of the flip member;

[0009] a speed reducer connected to the fixing member and having an input shaft and an output shaft, wherein the output shaft is coaxial with the rotation axis of the flip member and connected to the flip member; and

[0010] A driving member is connected to the fixing member and the input shaft of the reducer, and is used for driving the flip member to rotate via the reducer.

[0011] In one embodiment, the reducer includes a two-stage worm gear transmission and a multi-stage gear transmission. The two-stage worm gear is connected to the driving member, and the multi-stage gear transmission is connected to the two-stage worm gear transmission and the flip member.

[0012] In one embodiment, the reducer further includes a housing, and the housing is connected to the fixing member;

[0013] The two-stage worm gear transmission includes a first worm, a first turbine, a second worm and a second turbine. The first worm is connected to the output end of the driving member. The first turbine and the second worm are connected and rotatably connected to the housing. The first turbine is engaged with the first worm. The second turbine is rotatably connected to the housing and connected to the multi-stage gear transmission. The second turbine is engaged with the second worm.

[0014] In one embodiment, the multi-stage gear transmission includes a first gear, a second gear, a third gear and a fourth gear, the first gear is connected to the second turbine, the second gear is connected to the third gear and is rotatably connected to the housing, the second gear is meshed with the first gear, the fourth gear is rotatably connected to the housing and is meshed with the third gear, and the fourth gear is connected to the flip member.

[0015] In one embodiment, the multi-stage gear transmission component further includes an output shaft, and the output shaft is connected to the fourth gear and the flip component.

[0016] In one embodiment, the second gear has a greater number of teeth than the first gear, the third gear has a smaller number of teeth than the second gear, and the fourth gear has a greater number of teeth than the third gear.

[0017] In one embodiment, the reducer further includes a potentiometer connected to the fourth gear and configured to detect a rotational position of the fourth gear.

[0018] In one embodiment, both sides of the flip member are rotatably connected to the fixing member.

[0019] In one embodiment, the fixing member is provided with a mounting groove with an opening on one side, and the flip member is rotatably disposed in the mounting groove.

[0020] On the other hand, the present invention also relates to a camera device, comprising the above-mentioned electric actuator, wherein the camera unit is installed at the installation position.

[0021] Compared with the prior art, the electric actuator and camera device provided by the present invention, when it is necessary to realize the flipping of the device, start the driving part, the driving part outputs torque to the reducer, and the output power is decelerated and the torque is amplified by the reducer. The reducer outputs the decelerated power to the flipping part, driving the flipping part to rotate, and the rotating flipping part drives the device to flip; the reducer is directly connected to the flipping part, and since the reducer that plays a transmission role is a separate relatively closed component, it can better control noise compared with the exposed transmission structure; moreover, since the mounting position is located on the side of the flipping part that deviates from the rotation axis, when the flipping part rotates, it can drive the device on the mounting position to have a larger rotation range; moreover, since the output shaft is coaxial with the rotation axis of the flipping part and is directly connected to the flipping part, there is no other exposed structure between the output shaft and the flipping part, avoiding the exposed structure occupying space. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of a camera device provided by an embodiment of the present utility model;

[0023] Figure 2 This is a structural diagram of a camera device provided by an embodiment of the present utility model;

[0024] Figure 3 This is a structural diagram of a camera device provided by an embodiment of the present invention after being hidden in a housing;

[0025] Figure 4 yes Figure 3 A partial enlarged schematic diagram of point A in the middle;

[0026] Figure 5 This is a structural diagram of a camera device provided by an embodiment of the present invention after being hidden in a housing;

[0027] Figure 6 It is a structural schematic diagram of a fixing member, a flip member, a camera unit and screws in a camera device provided by one embodiment of the present utility model.

[0028] Description of reference numerals:

[0029] Fixing 1;

[0030] Mounting slot 1a;

[0031] Flip piece 2;

[0032] Positioning pin 21;

[0033] Reducer 3;

[0034] Two-stage worm gear transmission 31;

[0035] a first worm 311;

[0036] a first turbine 312;

[0037] a second worm 313;

[0038] a second turbine 314;

[0039] Multi-stage gear transmission member 32;

[0040] First gear 321;

[0041] Second gear 322;

[0042] third gear 323;

[0043] Fourth gear 324;

[0044] Output shaft 325;

[0045] Housing 33;

[0046] Potentiometer 34;

[0047] Driving member 4;

[0048] Camera unit 5;

[0049] Screw 6. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0051] In order to solve the technical problem in the prior art that the swing arm and push block structure in the flip device are exposed to the outside, resulting in difficulty in reducing noise, the utility model provides an electric actuator that can solve the technical problem that the transmission structure noise cannot be reduced.

[0052] It should be noted that the electric actuator described in the present invention is used for but not limited to camera devices, etc. For the sake of convenience, in the present invention, only the application of the electric actuator to the camera device is used as an example for explanation. The principles of the application of the electric actuator to other types of equipment are essentially the same as those used in the camera device, and will not be repeated here.

[0053] See also Figure 4 , Figure 4This is a partial structural diagram of an electric actuator in one embodiment of the present invention, an electric actuator, including a fixed part 1, a flip part 2, a reducer 3 and a driving part 4, the flip part 2 is rotatably connected to the fixed part 1, and a mounting position for fixing the device is formed on the side deviating from the rotation axis of the flip part 2; the reducer 3 is connected to the fixed part 1, and has an input shaft and an output shaft 325, the output shaft 325 is coaxial with the rotation axis of the flip part 2, and is connected to the flip part 2; the driving part 4 is connected to the fixed part 1 and the input shaft of the reducer 3, and is used to drive the flip part 2 to rotate through the reducer 3.

[0054] When it is necessary to flip the device, the driving member 4 is started, and the driving member 4 outputs torque to the reducer 3, which decelerates the output power and amplifies the torque through the reducer 3, and the reducer 3 outputs the decelerated power to the flipping member 2, driving the flipping member 2 to rotate, and the rotating flipping member 2 drives the device to flip; the reducer 3 is directly connected to the flipping member 2, and since the reducer 3 that plays a transmission role is a separate relatively closed component, it can better control noise compared to the exposed transmission structure; moreover, since the installation position is located on the side of the flipping member 2 that deviates from the rotation axis, when the flipping member 2 rotates, it can drive the device on the installation position to have a larger rotation range; moreover, since the output shaft 325 is coaxial with the rotation axis of the flipping member 2 and is directly connected to the flipping member 2, there is no other exposed structure between the output shaft 325 and the flipping member 2, avoiding the exposed structure occupying space.

[0055] It should be understood that the reducer 3 can be a gear reducer, a turbine reducer, a planetary gear reducer, a harmonic reducer, etc.

[0056] Specifically, such as Figure 3 As shown, in one embodiment, the reducer 3 includes a two-stage worm gear transmission 31 and a multi-stage gear transmission 32. The two-stage worm gear transmission 31 is connected to the driving member 4, and the multi-stage gear transmission 32 is connected to the two-stage worm gear transmission 31 and the flip member 2.

[0057] The combination of a two-stage worm gear and a multi-stage gear design can achieve a larger total reduction ratio, thereby providing more precise speed regulation and torque output control; compared with a single type of reduction device, this embodiment achieves the integration of an efficient reduction function in a limited space by optimizing the combination of different types of transmission elements; the self-locking characteristics of the worm gear improve the stability of the entire transmission system and can maintain good working performance under heavy loads.

[0058] like Figure 1 and Figure 2As shown, in one embodiment, the reducer 3 also includes a housing 33, which is connected to the fixed member 1; the two-stage worm gear transmission 31 includes a first worm 311, a first turbine 312, a second worm 313 and a second turbine 314, the first worm 311 is connected to the output end of the driving member 4, the first turbine 312 and the second worm 313 are connected and rotated to connect to the housing 33, the first turbine 312 is engaged with the first worm 311, the second turbine 314 is rotated to connect to the housing 33 and is connected to the multi-stage gear transmission member 32, and the second turbine 314 is engaged with the second worm 313.

[0059] During operation, the power output by the driving member 4 is transmitted to the first worm 311, which drives the first turbine 312 to rotate. The first turbine 312 drives the second worm 313 to rotate, and the second worm 313 drives the second turbine 314 to rotate. This two-stage worm-worm transmission can reduce and amplify the torque output by the driving member 4.

[0060] The rod body of the first worm 311 serves as the input shaft of the reducer 3 .

[0061] like Figure 3 and Figure 4 As shown, in one embodiment, the multi-stage gear transmission member 32 includes a first gear 321, a second gear 322, a third gear 323 and a fourth gear 324, the first gear 321 is connected to the second turbine 314, the second gear 322 and the third gear 323 are connected and rotatably connected to the housing 33, the second gear 322 is meshed with the first gear 321, the fourth gear 324 is rotatably connected to the housing 33 and meshed with the third gear 323, and the fourth gear 324 is connected to the flip member 2.

[0062] The power after being decelerated by the two-stage worm gear transmission 31 is transmitted to the first gear 321, and the first gear 321 is connected to the output end of the second turbine 314 to receive the power from the worm gear transmission. The first gear 321 is engaged with the second gear 322, and the power is transmitted from the first gear 321 to the second gear 322. The second gear 322 is rotatably connected to the housing 33 to ensure its stability when transmitting power. The second gear 322 is connected to the third gear 323, and the second gear 322 drives the third gear 323 to rotate. The third gear 323 is engaged with the fourth gear 324, and the power is transmitted to the fourth gear 324 through the third gear 323, and the power is output to the flip member 2 through the fourth gear 324: driving the flip member 2 to perform corresponding actions or position adjustments.

[0063] All transmission components are integrated in a closed housing 33, which not only makes the overall structure more compact, but also helps to prevent dust and water and protect internal parts from external interference, while also being able to control and reduce the noise generated by the transmission components during operation.

[0064] like Figure 3 and Figure 4 As shown, in one embodiment, the multi-stage gear transmission member 32 further includes an output shaft 325 , and the output shaft 325 is connected to the fourth gear 324 and the flip member 2 .

[0065] By providing the output shaft 325 , the output shaft 325 can transmit the power of the fourth gear 324 to the flip member 2 , thereby achieving the connection between the fourth gear 324 and the flip member 2 .

[0066] like Figure 3 and Figure 4 As shown, in one embodiment, the second gear 322 has a greater number of teeth than the first gear 321 , the third gear 323 has a smaller number of teeth than the second gear 322 , and the fourth gear 324 has a greater number of teeth than the third gear 323 .

[0067] With this arrangement, when power is transmitted between the four gears, the second gear 322 and the first gear 321 achieve both speed reduction and torque increase; the fourth gear 324 and the second gear 322 achieve both speed reduction and torque increase. By combining gears with varying tooth counts, a progressively optimized reduction ratio is achieved, ensuring smooth and precise power transmission. The gear tooth count configuration effectively increases torque at each transmission stage, ultimately achieving higher torque at the output to meet high load demands. A reasonable tooth count configuration helps reduce impact and vibration during gear meshing, thereby reducing operating noise and improving system stability.

[0068] like Figure 4 As shown, in one embodiment, the reducer 3 further includes a potentiometer 34 , which is connected to the fourth gear 324 and is used to detect the rotation position of the fourth gear 324 .

[0069] By detecting the rotation position of the fourth gear 324 in real time through the potentiometer 34 , high-precision position control of the flip member 2 can be achieved, so that the flip member 2 can be rotated to any angle.

[0070] It should be understood that the potentiometer 34 and the driving member 4 are both connected to a controller (not shown in the figure). The potentiometer 34 collects the rotational position of the fourth gear 324 and sends it to the controller. The controller controls the power output and start and stop of the driving member 4, so that the fourth gear 324 can drive the flip member 2 to stay in a precise position.

[0071] It should be understood that the flip member 2 can be connected to the fixing member 1 by rotating on one side or on multiple sides. Figure 1 and Figure 2 As shown, in one embodiment, both sides of the flip member 2 are rotatably connected to the fixing member 1 .

[0072] Both sides of the flip member 2 are rotatably connected to the fixing member 1, so that both sides of the flip member 2 can be stably fixed to the fixing member 1 during the rotation process, avoiding shaking of the flip member 2 during the rotation process and after rotating to the preset position.

[0073] like Figure 5 As shown, in one embodiment, the fixing member 1 is provided with a mounting groove 1a with an opening on one side, and the flip member 2 is rotatably provided in the mounting groove 1a.

[0074] By opening an installation groove 1a on one side of the fixing member 1, the space on the fixing member 1 is fully utilized, so that the flip member 2 can be rotatably installed in the installation groove 1a, realizing the rotational connection between the flip member 2 and the fixing member 1, and making the layout of the equipment more compact.

[0075] like Figure 1 and Figure 2 As shown, the present invention also relates to a camera device, comprising the above-mentioned electric actuator and a camera unit 5, wherein the camera unit 5 is installed at a mounting position.

[0076] When the camera unit 5 needs to be controlled to extend out of or retract into the vehicle body, the driving member 4 is started, the driving member 4 is connected to the flip member 2 via the reducer 3, and the camera unit 5 is driven to rotate to a preset position through the flip member 2, thereby realizing the camera unit 5 extending out or retracting into the vehicle body.

[0077] The camera unit 5 may be a single camera, a combination of a camera and a flash, or a mixture of multiple types.

[0078] like Figure 6 As shown, in one of the embodiments, the mounting position is a fixing groove formed on the flip member 2, and two positioning pins 21 and two threaded holes are formed on the flip member 2. The camera unit 5 has two positioning holes relative to the two positioning pins 21, and two through holes relative to the two threaded holes. The inner diameter of the through hole is larger than the inner diameter of the threaded hole. The camera unit 5 is respectively mounted on the two positioning pins 21 through the two positioning holes. The camera unit 5 is also provided with two screws 6 whose threaded ends pass through the two through holes and are threadedly connected to the threaded holes. The outer diameter of the screw 6 is smaller than the inner diameter of the through hole.

[0079] Through the above-mentioned setting, positioning the two sides of the camera unit 5 by the positioning pin 21 can provide higher positioning accuracy. By setting the outer diameter of the screw 6 to be smaller than the inner diameter of the through hole, interference with the positioning of the positioning pin 21 when the screw 6 is connected to the threaded hole of the flip part 2 can be avoided.

[0080] The specific embodiments of the present invention described above do not limit the scope of protection of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An electric actuator, characterized in that: include: fixings; A flip member, rotatably connected to the fixing member, and having a mounting position for fixing a device formed on a side deviating from the rotation axis of the flip member; a reducer connected to the fixing member and having an input shaft and an output shaft, wherein the output shaft is coaxial with the rotation axis of the flip member and connected to the flip member; and A driving member is connected to the fixing member and the input shaft of the reducer, and is used for driving the flip member to rotate via the reducer.

2. The electric actuator according to claim 1, characterized in that: The reducer includes a two-stage worm gear transmission component and a multi-stage gear transmission component. The two-stage worm gear is connected to the driving component, and the multi-stage gear transmission component is connected to the two-stage worm gear transmission component and the flip component.

3. The electric actuator according to claim 2, characterized in that: The reducer further includes a housing connected to the fixing member; The two-stage worm gear transmission includes a first worm, a first turbine, a second worm and a second turbine. The first worm is connected to the output end of the driving member. The first turbine and the second worm are connected and rotatably connected to the housing. The first turbine is engaged with the first worm. The second turbine is rotatably connected to the housing and connected to the multi-stage gear transmission. The second turbine is engaged with the second worm.

4. The electric actuator according to claim 3, characterized in that: The multi-stage gear transmission component includes a first gear, a second gear, a third gear and a fourth gear. The first gear is connected to the second turbine. The second gear is connected to the third gear and is rotatably connected to the housing. The second gear is meshed with the first gear. The fourth gear is rotatably connected to the housing and is meshed with the third gear. The fourth gear is connected to the flip member.

5. The electric actuator according to claim 4, characterized in that: The multi-stage gear transmission component further includes the output shaft, which is connected to the fourth gear and the flip component.

6. The electric actuator according to claim 4, characterized in that: The second gear has a larger number of teeth than the first gear, the third gear has a smaller number of teeth than the second gear, and the fourth gear has a larger number of teeth than the third gear.

7. The electric actuator according to claim 5, characterized in that: The reducer further includes a potentiometer connected to the fourth gear and configured to detect a rotational position of the fourth gear.

8. The electric actuator according to claim 1, characterized in that: Both sides of the flipping member are rotatably connected to the fixing member respectively.

9. The electric actuator according to claim 1, characterized in that: The fixing member is provided with a mounting groove with an opening on one side, and the flip member can be rotatably arranged in the mounting groove.

10. A camera device, characterized in that: It comprises the electric actuator and the camera unit according to any one of claims 1 to 9, wherein the camera unit is installed at the installation position.

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