voice coil actuator

Abstract

The utility model discloses a voice coil actuator, including casing, voice coil motor, connecting component, output shaft and guide component, voice coil motor, connecting component and output shaft are arranged in proper order along the movement direction of output shaft, voice coil motor is installed in the casing, and connecting component is movably installed in the casing, and the both ends of connecting component are connected with voice coil motor and output shaft respectively, and connecting component can move reciprocatingly along the straight line under the drive of voice coil motor, and drives output shaft to move reciprocatingly along the straight line, guide component is connected between connecting component and casing, and guide component is used for providing linear guide for connecting component. The arrangement mode of voice coil motor, connecting component and output shaft in the application can adopt the voice coil motor of larger thrust, and also make the overall structure of voice coil actuator more compact, and the volume is small, can use in the long and narrow space.

Description

Technical Field

[0001] This utility model relates to the field of drive equipment, and in particular to a voice coil actuator. Background Technology

[0002] A voice coil actuator is a linear motion actuator based on a voice coil motor. In existing voice coil actuators, the voice coil motor and the output shaft are generally arranged non-coaxially, connected by a connecting structure. This layout is not conducive to using voice coil motors with high driving force; in addition, this layout results in the overall voice coil actuator being flat, making it unsuitable for use in scenarios with width restrictions. Utility Model Content

[0003] The technical solution of this utility model is as follows: a voice coil actuator is provided, which includes a housing, a voice coil motor, a connecting component, an output shaft, and a guide component; wherein, the voice coil motor is installed inside the housing, the connecting component is movably installed inside the housing, the voice coil motor and the output shaft are respectively connected to the connecting component, the connecting component can reciprocate linearly under the drive of the voice coil motor, thereby driving the output shaft to reciprocate linearly; the guide component is connected between the connecting component and the housing, and the guide component is used to provide linear guidance for the connecting component; and the voice coil motor, the connecting component, and the output shaft are arranged sequentially along the moving direction of the output shaft.

[0004] Preferably, the voice coil actuator further includes a force sensor, which is connected to the output shaft and the connecting assembly respectively. The force sensor is used to detect the force between the output shaft and the connecting assembly to achieve closed-loop control of the voice coil motor.

[0005] Preferably, the connecting assembly includes a first connector, and the guide assembly is connected between the bottom of the first connector and the inner wall of the housing. One end of the first connector is connected to the voice coil motor, and the other end of the first connector is equipped with the force sensor. The output shaft and the voice coil motor are sequentially installed along the moving direction of the output shaft through the first connector, so that the actuator can use a voice coil motor with a larger thrust, and the overall structure is compact.

[0006] Preferably, the first connector includes a first plate-shaped portion and a second plate-shaped portion and a third plate-shaped portion respectively connected to both ends of the first plate-shaped portion. The first plate-shaped portion is connected to the guide assembly between itself and the inner wall of the housing. The second plate-shaped portion and the third plate-shaped portion are arranged at an angle to the first plate-shaped portion. The second plate-shaped portion is connected to the voice coil motor, and the third plate-shaped portion is used to mount the force sensor. The structural design of the first connector not only facilitates the installation of the guide assembly, the voice coil motor, and the force sensor, but also makes the structure more compact and reduces the space occupied.

[0007] Preferably, the connecting assembly further includes a second connector, which is bent and includes a first end and a second end. The first end is connected to the first connector, and the second end is located in front of the first connector and protrudes in the direction of the housing. The second end is used to install a displacement detection assembly or a part of a position detection assembly, thereby facilitating the installation of the displacement detection assembly or the position detection assembly.

[0008] Preferably, the voice coil actuator further includes a displacement detection component, which includes a detection element and a measured element. One of the detection element and the measured element is mounted on the connecting assembly, and the other of the detection element and the measured element is mounted on the housing. The detection element and the measured element cooperate to detect the displacement of the connecting assembly.

[0009] Preferably, the voice coil actuator further includes a position detection component, which includes a sensing element and a sensed element. One of the sensing element and the sensed element is mounted on the connecting component, and the other of the sensing element and the sensed element is mounted on the housing. The sensing element and the sensed element cooperate to detect the position of the connecting component.

[0010] Preferably, the voice coil actuator further includes a spring assembly, which includes at least an elastic element. The two ends of the elastic element abut against the connecting assembly and the housing, respectively, so that the actuator can resist the influence of its own weight and / or external load when used in non-horizontal application scenarios such as vertical applications.

[0011] Preferably, the elastic component further includes a guide post, which is connected to the connecting component and / or the housing, and the elastic element is sleeved on the guide post, making the installation of the elastic element more convenient and stable.

[0012] Preferably, the voice coil actuator further includes a mounting component, which is installed within the housing and used to install the voice coil motor, making the installation of the voice coil motor more convenient.

[0013] Preferably, the voice coil actuator further includes a cooling pipe, which is installed on the mounting component and located around the voice coil motor. The inlet and outlet ends of the cooling pipe extend outside the housing, and the cooling pipe is used to introduce gas or liquid to cool the voice coil motor.

[0014] Preferably, the voice coil actuator further includes a first anti-collision member and a second anti-collision member, one of the first anti-collision member and the second anti-collision member being installed between the end of the connecting assembly that connects the output shaft and the housing, and the other of the first anti-collision member and the second anti-collision member being installed between the connecting assembly and the mounting member.

[0015] Preferably, a connecting block protrudes from one end of the connecting assembly that connects to the output shaft. The connecting block is located on the side of the force sensor. The first anti-collision member is installed on the connecting block and protrudes from the connecting block, and is used to detachably abut against the housing.

[0016] Preferably, the second anti-collision member is mounted on the mounting member and protrudes from the mounting member for detachably abutting against the connecting assembly.

[0017] Compared with the prior art, the voice coil actuator of this utility model arranges the voice coil motor, connecting assembly, and output shaft sequentially along the moving direction of the output shaft and installs them in the housing. The output shaft and the voice coil motor are respectively connected to the connecting assembly. The voice coil motor drives the connecting assembly to move back and forth in a straight line, thereby driving the output shaft to follow the connecting assembly to move back and forth in a straight line. Therefore, it can not only use a voice coil motor with a larger thrust, but also make the overall structure of the voice coil actuator more compact and smaller in size, so that it can be used in narrow spaces with limited width. Attached Figure Description

[0018] Figure 1 This is a structural schematic diagram of the voice coil actuator of this utility model.

[0019] Figure 2 yes Figure 1 A schematic diagram of the structure after removing the outer cover.

[0020] Figure 3 yes Figure 2 A schematic diagram of the local structure from another angle.

[0021] Figure 4 yes Figure 2 A partial structural diagram from another angle.

[0022] Figure 5 yes Figure 4 A partial sectional view.

[0023] Figure 6 yes Figure 5 An enlarged schematic diagram of part A in the middle.

[0024] Figure 7 yes Figure 2 The exploded diagram.

[0025] Figure 8 yes Figure 7 Enlarged diagram of part B.

[0026] Figure 9 yes Figure 4 A schematic diagram of the structure of the connecting component and the guiding component. Detailed Implementation

[0027] Embodiments of the present invention will now be described with reference to the accompanying drawings, in which similar element reference numerals represent similar elements. It should be noted that the directional descriptions involved in the present invention, such as up, down, left, right, front, and back, indicating directions or positional relationships, are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the technical solutions of this application or / and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first," "second," etc., described are only used to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.

[0028] First combine Figures 1-5 As shown, in one embodiment of this utility model, the provided voice coil actuator 1 includes a housing 11, a voice coil motor 12, a connecting assembly 13, an output shaft 14, and a guide assembly 16. The voice coil motor 12 is installed inside the housing 11, and the connecting assembly 13 is movably installed inside the housing 11. The voice coil motor 12 and the output shaft 14 are respectively connected to both ends of the connecting assembly 13. Furthermore, the voice coil motor 12, the connecting assembly 13, and the output shaft 14 are arranged sequentially along the moving direction of the output shaft 14. The connecting assembly 13 can reciprocate linearly under the drive of the voice coil motor 12, thereby driving the output shaft 14 to reciprocate linearly. The guide assembly 16 connects the connecting assembly 13 and the housing 11, and provides linear guidance for the connecting assembly 13. This application, through the sequential arrangement of the voice coil motor 12, the connecting assembly 13, and the output shaft 14, enables the use of a voice coil motor 12 with a larger thrust, while also making the overall structure of the voice coil actuator 1 more compact and smaller in size, allowing it to be used in narrow spaces.

[0029] Combination Figures 1-2 As shown, in this embodiment, the housing 11 includes a mating base 111 and an outer cover 112. After assembly, the outer cover 112 and the base 111 form an installation space for mounting the voice coil motor 12, the connecting assembly 13, and the guide assembly 16. One end of the output shaft 14 is connected to the connecting assembly 13, and the other end of the output shaft 14 extends outside the housing 11. The structure of the base 111 and the outer cover 112 is conventional in the art and will not be described in detail further.

[0030] The following is combined Figures 2-7As shown, in one embodiment of this utility model, the voice coil actuator 1 further includes a force sensor 15. The force sensor 15 is connected to the output shaft 14 and the connecting assembly 13 respectively. The force sensor 15 is used to detect the force between the output shaft 14 and the connecting assembly 13, specifically the force transmitted from the output shaft 14, to achieve closed-loop control of the voice coil motor 12. Of course, in other embodiments, the force sensor 15 can also be used to detect the force transmitted from the connecting assembly 13 for calibration, but this is not a limitation.

[0031] The following is combined Figure 2-7 , Figure 9 As shown, in one embodiment of this utility model, the connecting component 13 includes a first connecting member 131. A guide component 16 is connected between the bottom of the first connecting member 131 and the inner wall of the housing 11. Specifically, the bottom of the first connecting member 131 is mounted on the base 111 via the guide component 16. Furthermore, one end of the first connecting member 131 is connected to the voice coil motor 12, and the other end of the first connecting member 131 is fitted with a force sensor 15. The first connecting member 131 enables the output shaft 14 and the voice coil motor 12 to be sequentially mounted along the moving direction of the output shaft 14, allowing the voice coil actuator 1 to use a voice coil motor 12 with a larger thrust, and resulting in a more compact overall structure.

[0032] See Figure 9 As shown, the first connector 131 includes a first plate-shaped portion 1311 and a second plate-shaped portion 1312 and a third plate-shaped portion 1313 respectively connected to both ends of the first plate-shaped portion 1311. The second plate-shaped portion 1312 and the third plate-shaped portion 1313 are arranged at an angle to the first plate-shaped portion 1311. In a preferred embodiment, the second plate-shaped portion 1312 and the third plate-shaped portion 1313 are respectively arranged perpendicular to the first plate-shaped portion 1311, and the protrusion directions of the second plate-shaped portion 1312 and the third plate-shaped portion 1313 are the same. Figure 3-7 As shown, when the first connector 131 is installed, a guide assembly 16 connects the first plate-shaped portion 1311 to the inner wall of the base 111, allowing the first connector 131 to be movably installed on the base 111. Simultaneously, the second plate-shaped portion 1312 and the third plate-shaped portion 1313 protrude away from the guide assembly 16. Furthermore, the second plate-shaped portion 1312 is connected to the voice coil motor 12, and the third plate-shaped portion 1313 is fitted with a force sensor 15, which is connected to the output shaft 14. This structural arrangement of the first connector 131 not only facilitates the sequential arrangement of the output shaft 14 and the voice coil motor 12 along the moving direction of the output shaft 14, but also facilitates the installation of the guide assembly 16.

[0033] Combination Figure 7-9As shown, in this embodiment, the first connector 131 further includes a connecting block 1314, which protrudes from the third plate-shaped portion 1313, and the protrusion direction of the connecting block 1314 is the same as the protrusion direction of the force sensor 15. In the thickness direction of the voice coil actuator 1, the connecting block 1314 is located at the bottom of the third plate-shaped portion 1313; in the width direction of the voice coil actuator 1, the connecting block 1314 is located on the side of the force sensor 15. The connecting block 1314 is used to mount the anti-collision member 22 and a portion of the displacement detection assembly 17 or the position detection assembly 18, as detailed later.

[0034] Continue to combine Figure 2-7 , Figure 9 As shown, in one embodiment of the present invention, the connecting component 13 further includes a second connector 132, which is connected to the first connector 131. The second connector 132 is used to install a part of the displacement detection component 17 or the position detection component 18.

[0035] Specifically, the second connector 132 is bent and includes a first end 1321 and a second end 1322. The first end 1321 is connected to the side of the first connector 131 facing away from the guide assembly 16, specifically to the side of the first plate-shaped portion 1311 facing away from the guide assembly 16. The second end 1322 is located in front of the first connector 131 and on the side of the third plate-shaped portion 1313, and protrudes towards the base 111. The second end 1322 is used to install a portion of the displacement detection assembly 17 or the position detection assembly 18 (see below for details). The structural design of the second connector 132 not only facilitates the installation of the displacement detection assembly 17 or the position detection assembly 18, but also simplifies the structure of the connector 13 and reduces its space occupation.

[0036] Continue to combine Figure 2-7 , Figure 9 As shown, in this embodiment, the guide assembly 16 includes a slidingly engaged guide rail 161 and a slider 161. The guide rail 161 is mounted on the base 111 and arranged along the moving direction of the output shaft 14. The bottom of the slider 161 is slidably connected to the guide rail 161, and the top of the slider 161 is mounted on the bottom of the first plate-shaped portion 1311, thereby enabling the first connecting member 131 to reciprocate along the guide rail 161. It is understood that the structure and installation method of the guide assembly 16 are not limited to those in this embodiment.

[0037] The following is combined Figure 2-3 , Figure 7-8As shown, in one embodiment of this utility model, the voice coil actuator 1 further includes a displacement detection component 17. The displacement detection component 17 includes a detection element 171 and a measured element 172. One of the detection element 171 and the measured element 172 is mounted on the connecting component 13, and the other of the detection element 171 and the measured element 172 is mounted on the housing 11. The detection element 171 and the measured element 172 are arranged vertically, and the displacement of the connecting component 13 is detected by the cooperation of the detection element 171 and the measured element 172.

[0038] Continue reading Figure 7-8 As shown, in a preferred embodiment, the displacement detection component 17 is a linear encoder. Specifically, the detection element 171 is a reading head, and the measured element 172 is a scale. The scale is mounted on the connecting component 13; in this embodiment, the scale is mounted on the bottom of the connecting block 1314 of the first connecting component 131. The reading head is mounted on the base 111 of the housing 11 and arranged vertically with the scale, specifically below the scale. During the reciprocating linear movement of the connecting component 13 driven by the voice coil motor 12, the scale moves along with the connecting component 13, and the reading head reads the changes on the scale, thereby achieving accurate detection of the displacement of the connecting component 13. Simultaneously, the vertical arrangement of the reading head and the scale makes the structure compact and reduces the overall thickness of the voice coil actuator 1.

[0039] Understandably, the detection element 171 and the measured element 172 are not limited to a scale and a reading head. It is equally feasible to use other detection components to detect the displacement of the connecting assembly 13.

[0040] The following is combined Figures 4-6 As shown, in one embodiment of this utility model, the voice coil actuator 1 further includes a position detection component 18. The position detection component 18 includes a sensor 181 and a sensed component 182. One of the sensor 181 and the sensed component 182 is mounted on the connecting component 13, and the other of the sensor 181 and the sensed component 182 is mounted on the housing 11. The sensor 181 and the sensed component 182 are arranged vertically, and the position of the connecting component 13 is detected by the cooperation of the sensor 181 and the sensed component 182.

[0041] Continue to combine Figures 4-6 As shown, in a preferred embodiment, the sensing element 181 is a Hall element, and the sensed element 182 is a sensing magnet. The sensing magnet is embedded in the second end 1322 of the second connector 132, see... Figure 5-6As shown, a Hall element is mounted on the base 111 and positioned vertically opposite the inductive magnet. During the reciprocating linear movement of the connecting assembly 13 driven by the voice coil motor 12, the inductive magnet moves with the connecting assembly 13. The Hall element detects the magnetic field of the inductive magnet and its changes, thereby enabling the detection of a specific position of the connecting assembly 13. This application, through the cooperation of the position detection component 18 and the displacement detection component 17, can achieve precise determination of all positions of the connecting assembly 13.

[0042] Understandably, the sensing element 181 and the sensed element 182 are not limited to Hall elements and sensing magnets. It is equally feasible to use other detection components to detect and determine the position of the connection assembly 13.

[0043] The following is combined Figure 2-5 , Figure 7 As shown, in one embodiment of this utility model, the voice coil actuator 1 further includes a spring component 19. The spring component 19 is disposed between one end of the mounting output shaft 14 of the connecting component 13 and the housing 11. The spring component 19 enables the voice coil actuator 1 to resist the influence of its own weight and / or external load when used in non-horizontal application scenarios such as vertical. Of course, the spring component 19 can also be used to generate an elastic force to return to a fixed position, so that the output shaft 14 can return to a fixed position under the drive of the spring component 19.

[0044] In this embodiment, the elastic component 19 includes at least an elastic element 191, with both ends of the elastic element 191 abutting between one end of the mounting output shaft 14 of the connecting component 13 and the housing 11. Specifically, both ends of the elastic element 191 abut between the third plate-shaped portion 1313 of the first connecting member 131 and a baffle of the base 111, and the elastic element 191 is disposed on the side of the force sensor 15.

[0045] In a preferred embodiment, the elastic component 19 further includes a guide post 192, which is connected to the connecting component 13 and / or the housing 11. An elastic element 191 is sleeved on the guide post 192, making the installation of the elastic element 191 more convenient and stable, and allowing the elastic element 191 to deform along the length direction of the guide post 192, with the direction of the elastic force parallel to the length direction of the guide post 192. In a specific embodiment, one end of the guide post 192 is connected to a baffle of the base 111, and the other end of the guide post 192 protrudes towards the third plate-shaped portion 1313. The elastic element 191 is sleeved on the guide post 192, and both ends abut against the third plate-shaped portion 1313 and a baffle of the base 111, respectively. Furthermore, the third plate-shaped portion 1313 has through holes corresponding to the guide post 192, so that during the movement of the connecting component 13, the guide post 192 can pass through the through holes on the third plate-shaped portion 1313, causing the third plate-shaped portion 1313 to compress the elastic element 191. Understandably, in other embodiments, the guide post 192 may also be connected to the third plate portion 1313 alone or simultaneously.

[0046] The following will continue to combine Figure 2-5 , Figure 7 As shown, in one embodiment of this utility model, the voice coil actuator 1 further includes a mounting member 20 and a cooling pipe 21. The mounting member 20 is mounted on the base 111 and has a hollow structure with one open end. The voice coil motor 12 is mounted within the hollow structure of the mounting member 20, which facilitates the installation of the voice coil motor 12. The cooling pipe 21 is mounted within the hollow structure of the mounting member 20 and positioned around the voice coil motor 12. The inlet and outlet ends of the cooling pipe 21 extend outside the housing 11, and the cooling pipe 21 is used to introduce gas or liquid to cool the voice coil motor 12. The structure and arrangement of the cooling pipe 21 are conventional in the art.

[0047] The following is combined Figures 2-8 As shown, in one embodiment of this utility model, the voice coil actuator 1 further includes a first anti-collision member 22 and a second anti-collision member 23, both of which are elastic structures. One of the first anti-collision member 22 and the second anti-collision member 23 is installed between one end of the connecting output shaft 14 of the connecting assembly 13 and the housing 11, and the other of the first anti-collision member 22 and the second anti-collision member 23 is installed between the connecting assembly 13 and the mounting member 20.

[0048] In one specific embodiment, the first anti-collision member 22 is mounted on the connecting block 1314 and protrudes from the connecting block 1314 along the moving direction of the output shaft 14, see Figure 7-8 As shown, a baffle is used to detachably abut against the housing 11, that is, to detachably abut against the base 111, to limit the front end of the connecting assembly 13. The second anti-collision member 23 is mounted on the mounting member 20 and protrudes from the mounting member 20, see... Figure 4-5 As shown, the second plate-shaped portion 1312 and / or the slider 162 of the first connector 131 can be detachably abutted to limit the rear end of the connecting assembly 13.

[0049] Recombined Figure 1-5 , Figure 7 As shown, when the voice coil actuator 1100 of this utility model is in use, the voice coil motor 12 drives the connecting component 13 to move linearly, and the connecting component 13 drives the output shaft 14 to move linearly. During this process, the guide component 16 provides linear guidance.

[0050] During the movement of the output shaft 140 driven by the connecting assembly 130, the force sensor 15 detects the force between the output shaft 140 and the connecting assembly 13, thereby achieving closed-loop control of the voice coil motor 12. Simultaneously, the measured element 172 (scale) of the displacement detection assembly 17 and the sensed element 182 (induction magnet) of the position detection assembly 18 move synchronously with the connecting assembly 13. The moving measured element 172 (scale) cooperates with the detection element 171 (reading head), with the detection element 171 (reading head) reading the measured element 172 (scale) to accurately detect the displacement of the connecting assembly 13. The sensed element 182 (induction magnet) cooperates with the sensing element 181 (Hall element) to determine a specific position of the connecting assembly 130. Through the cooperation of the position detection assembly 18 and the displacement detection assembly 17, accurate determination of all positions of the connecting assembly 13 can be achieved.

[0051] In summary, the voice coil actuator 1 of this utility model arranges the voice coil motor 12, the connecting component 13, and the output shaft 14 sequentially along the moving direction of the output shaft 14 and installs them on the housing 11. The voice coil motor 12 drives the connecting component 13 to move back and forth in a straight line, thereby driving the output shaft 14 to follow the connecting component 13 to move back and forth in a straight line. Therefore, not only can a voice coil motor 12 with a larger thrust be used, but the overall structure of the voice coil actuator 1 is also more compact and smaller in size, making it suitable for use in narrow spaces with limitations such as width.

[0052] The structures of the other parts of the voice coil actuator 1 involved in this application are all conventional structures well known to those skilled in the art, and will not be described in detail.

[0053] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model application shall still fall within the scope of the present utility model.

Claims

1. A voice coil actuator, characterized by, The device includes a housing, a voice coil motor, a connecting assembly, an output shaft, and a guide assembly. The voice coil motor is installed inside the housing, and the connecting assembly is movably installed inside the housing. The voice coil motor and the output shaft are respectively connected to the connecting assembly. The connecting assembly can reciprocate linearly under the drive of the voice coil motor, thereby driving the output shaft to reciprocate linearly. The guide assembly is connected between the connecting assembly and the housing, and the guide assembly is used to provide linear guidance for the connecting assembly. The voice coil motor, the connecting assembly, and the output shaft are arranged sequentially along the direction of movement of the output shaft.

2. The voice coil actuator of claim 1, wherein, The voice coil actuator also includes a force sensor, and the output shaft and the connecting assembly are respectively connected to the force sensor. The force sensor is used to detect the force between the output shaft and the connecting assembly.

3. The voice coil actuator of claim 2, wherein, The connecting assembly includes a first connector, and the guide assembly is disposed between the bottom of the first connector and the inner wall of the housing. One end of the first connector is connected to the voice coil motor, and the other end of the first connector is equipped with the force sensor.

4. The voice coil actuator of claim 3, wherein, The first connector includes a first plate-shaped portion and a second plate-shaped portion and a third plate-shaped portion respectively connected to both ends of the first plate-shaped portion. The first plate-shaped portion is connected to the guide assembly between itself and the inner wall of the housing. The second plate-shaped portion and the third plate-shaped portion are arranged at an angle to the first plate-shaped portion. The second plate-shaped portion is connected to the voice coil motor, and the third plate-shaped portion is equipped with the force sensor.

5. The voice coil actuator of claim 3, wherein, The connecting assembly further includes a second connector, which is bent and includes a first end and a second end. The first end is connected to the first connector, and the second end is located in front of the first connector and protrudes in the direction of the housing. The second end is used to install a displacement detection assembly or a part of a position detection assembly.

6. The voice coil actuator of claim 1, wherein, The voice coil actuator further includes a displacement detection component and / or a position detection component; The displacement detection assembly includes a detection element and a measured element. One of the detection element and the measured element is installed on the connecting assembly, and the other of the detection element and the measured element is installed on the housing. The detection element and the measured element cooperate to detect the displacement of the connecting assembly. The position displacement detection component includes a sensing element and a sensed element. One of the sensing element and the sensed element is mounted on the connection component, and the other of the sensing element and the sensed element is mounted on the housing. The sensing element and the sensed element cooperate to detect the position of the connection component.

7. The voice coil actuator of claim 1, wherein, The voice coil actuator further includes a spring assembly, which includes at least an elastic element, with both ends of the elastic element abutting between the connecting assembly and the housing.

8. The voice coil actuator of claim 7, wherein, The elastic component further includes a guide post, which is arranged parallel to the output shaft. The guide post is connected to the connecting component and / or the housing, and the elastic element is sleeved on the guide post.

9. The voice coil actuator of claim 1, wherein, The voice coil actuator also includes: Mounting component, installed inside the housing and used to mount the voice coil motor; A cooling pipe is installed on the mounting component and located around the voice coil motor. The cooling pipe is used to introduce gas or liquid to cool the voice coil motor.

10. The voice coil actuator of claim 9, wherein, It also includes a first anti-collision member and a second anti-collision member, one of which is installed between the end of the connecting assembly that connects the output shaft and the housing, and the other of which is installed between the connecting assembly and the mounting member.

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