Novel miniaturized automatic focusing motor and electronic product

Abstract

The invention belongs to the technical field of lens architecture, and discloses a novel miniaturized automatic focusing motor, which comprises a base, a carrier, a shell, a driving source and a module plate, the carrier is provided with an assembly space for placing a lens; the inner side of the shell is provided with an accommodating space, the shell is connected with the base, and the shell is provided with an insertion hole; the driving source is used for driving the carrier to axially move along the optical axis relative to the base and is positioned in the accommodating space; the module plate is provided with an image sensor, and the module plate is inserted into the shell from the insertion hole and located on one side of the assembly space. In the assembling process of the novel miniaturized automatic focusing motor, built-in of the module plate can be rapidly and efficiently achieved, and the process is simple and convenient. The invention further discloses an electronic product with the novel miniaturized automatic focusing motor.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of lens architecture, and particularly relates to a novel miniaturized automatic focusing motor and electronic product. BACKGROUND

[0002] AI glasses are wearable devices integrated with artificial intelligence technology, which can provide real-time information interaction, environmental perception, augmented reality and other functions for users through built-in image sensors, processors and display units, and are widely used in industrial production, medical health, education and training, daily life and other fields.

[0003] Generally, the image sensor is arranged on the module plate. For the current AI glasses, the module plate needs to be integrated into the assembly in advance in the assembly process of the lens driving assembly. In addition to positioning, it also needs to have a stable connection relationship, so the process flow of the assembled module plate is relatively complex, in other words, the built-in process of the image sensor in the prior art is complex and the assembly efficiency is low. SUMMARY

[0004] In order to solve the above technical problems, the application discloses a novel miniaturized automatic focusing motor, which can quickly and efficiently realize the built-in of the module plate in the assembly process of the lens driving assembly, and the process is simple and convenient. The application also discloses an electronic product with the novel miniaturized automatic focusing motor.

[0005] The specific technical scheme of the application is as follows:

[0006] A novel miniaturized automatic focusing motor comprises:

[0007] a base;

[0008] a carrier having an assembly space for placing a lens;

[0009] a shell having an accommodation space on the inner side, the shell being connected with the base, and the shell being provided with a penetrating hole;

[0010] a driving source for driving the carrier to move axially along the optical axis relative to the base, located in the accommodation space; and

[0011] a module plate provided with an image sensor, the module plate being inserted into the interior of the shell from the penetrating hole and located on one side of the assembly space.

[0012] In the application, the base, carrier, shell, driving source and other components are effectively assembled, and the built-in module plate is realized in the last assembly step through the insertion hole on the shell. Therefore, the application does not need to realize the pre-built-in module plate according to the prior art, effectively saves the assembly time of the module plate, and improves the assembly process efficiency. According to the cooperation relationship between the insertion hole and the module plate, the module plate also realizes built-in positioning through the insertion hole, thereby effectively saving the positioning step.

[0013] Preferably, the driving force of the driving source is axial along the optical axis, the driving source has a connecting part one and a connecting part two, the connecting part one and the connecting part two are separately arranged or integrally arranged, one of the connecting part one and the connecting part two is connected with the base, and the other is connected with the transmission part.

[0014] The structure is simple, and the driving of the driving source to the carrier can be well realized; when the connecting part one and the connecting part two are separately arranged, the driving source can be configured as a voice coil motor, and when the connecting part one and the connecting part two are integrally arranged, the driving source can be configured as a piezoelectric motor or an SMA actuator. In other words, the application is suitable for different application environments.

[0015] Preferably, the base is provided with a mounting groove, and the connecting part one of the driving source is arranged in the mounting groove.

[0016] The carrier is provided with a dispensing groove, and the connecting part two of the driving source is connected with the carrier by dispensing in the dispensing groove.

[0017] The structure is simple, the mounting groove can realize mounting and positioning, and at the same time, the dispensing groove can fill a sufficient amount of connecting glue, so that the connection between the carrier and the driving source has good stability, thereby well meeting the use requirements; especially for piezoelectric motors or SMA actuators, the driving requirements can be well met.

[0018] Preferably, the carrier is provided with a transmission part extending along the optical axis, the base is provided with an assembly part extending along the optical axis, the extension direction of the transmission part and the extension direction of the assembly part are opposite, and a transmission member is arranged between the assembly part and the transmission part to movably cooperate.

[0019] In the prior art, the lens driving assembly is usually of a combined design, i.e. an integrated structure. In order to ensure the cooperative accuracy of multiple functions, the core components need to be arranged on the main channel in the optical axis direction, thus forming a large assembly structure. Such a "centralized layout" structure occupies a large space in the direction perpendicular to the optical axis and is difficult to avoid other components, and thus has a low possibility of size reduction. The present application adopts a module board with an image sensor to form a split structure with a boundary line, which can be arranged flexibly in a non-main channel. Such a layout can make full use of the fragmented space, thus realizing the miniaturization of the autofocus motor and avoiding the waste of volume caused by the centralized layout, so that the overall volume is smaller. In addition, the transmission member can realize the sliding fit between the assembly part and the transmission part, i.e. in the optical axis direction, so that the carrier and the base have good relative motion stability, thus better meeting the focusing requirements.

[0020] Preferably, the transmission member is at least one of a suspension wire, a spring sheet, a ball, a roller, and a sliding rod.

[0021] According to actual needs, the present application can select corresponding transmission members for assembly.

[0022] Preferably, one of the assembly part and the transmission part is provided with a plurality of ball grooves for accommodating balls, and the other is provided with a plurality of rolling grooves for rolling the balls.

[0023] The ball grooves can realize the positioning and accommodation of the balls, and the rolling grooves can realize motion guidance, effectively providing motion stability.

[0024] Preferably, the rolling grooves are V grooves or square grooves.

[0025] When the ball grooves are V grooves, good movement guidance can be realized, and when the ball grooves are square grooves, more stable support for the balls can be realized.

[0026] Preferably, one of the assembly part and the transmission part is provided with a magnet, and the other is provided with a steel sheet.

[0027] The magnet and the steel sheet generate an attractive force, so that the balls can be clamped by the carrier and the base, thus enabling the balls to realize the sliding fit between the carrier and the base.

[0028] Preferably, the base is provided with a support plate, and the module board is inserted into the inside of the shell from the insertion hole to be fixed on the support plate.

[0029] This structure is simple and can realize the installation of the module board quickly and conveniently on the basis of the split structure of the overall assembly.

[0030] Preferably, the carrier is provided with a limiting part one matched with the shell, and is also provided with a limiting part two matched with the base.

[0031] The limiting part one realizes the limiting of the carrier in one direction, and the limiting part two realizes the limiting of the carrier in another opposite direction, thereby effectively avoiding the transition stroke, and being capable of controlling the stroke precision, and also well protecting the lens.

[0032] An electronic product comprises a lens module, the lens module comprising:

[0033] The novel miniaturized autofocus motor as described above, and

[0034] A lens is arranged on the carrier.

[0035] Preferably, the electronic product further comprises:

[0036] A spectacle frame is provided with a temple, and the lens module is arranged on the temple.

[0037] The extension direction of the lens module in the optical axis direction is consistent with the extension direction of at least a part of the temple.

[0038] The structure can well meet the requirements of the first angle of view shooting.

[0039] Preferably, the lens module and the spectacle frame meet the following formula: F1 x L1 > F2 x L2, wherein F1 is the support force at the temple, L1 is the distance between the force receiving position of the temple and the center of gravity of the lens module, F2 is the support force at the lens of the spectacle frame, and L2 is the distance between the force receiving position of the lens of the spectacle frame and the center of gravity of the lens module.

[0040] In order to achieve the overall wearing experience of the spectacle, when the installation position of the lens module in the spectacle frame meets the above formula, that is, under the condition that the mass of the lens and the temple is certain, the distance between the overall center of gravity of the lens module and the installation part and the ear part of the wearer is closer, and the pressure feeling of the user is smaller.

[0041] Compared with the prior art, the lens driving assembly can be well simplified in assembly process, and the assembly volume is well reduced, which is beneficial to miniaturization and light weight. Therefore, when the lens module is applied to the spectacle, the field of view around the lens can be reduced, the lens and the user can achieve consistent visual effect, and the focusing shooting range is improved to improve the shooting accuracy of the first angle of view. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is a schematic view of the novel miniaturized autofocus motor in the embodiment of the present application;

[0043] Figure 2 It is a sectional view of Figure 1 the lens module.

[0044] Figure 3 for Figure 1 Exploded view;

[0045] Figure 4 This is a schematic diagram of one orientation of the carrier in an embodiment of the present invention;

[0046] Figure 5 This is a schematic diagram of the carrier from another direction in an embodiment of the present invention;

[0047] Figure 6 This is a schematic diagram of one direction of the base in an embodiment of the present invention;

[0048] Figure 7 This is a schematic diagram of the base from another direction in an embodiment of the present invention;

[0049] Figure 8 This is a schematic diagram of the outer casing in an embodiment of the present invention.

[0050] In the diagram: 1-Base; 2-Carrier; 3-Drive source; 4-Outer shell; 5-Transmission part one; 6-Transmission part two; 7-Mounting groove; 8-Dispensing groove; 9-Assembly part; 10-Ball groove; 11-Rolling groove one; 12-Rolling groove two; 13-Ball; 14-Magnet; 15-Steel sheet; 16-Groove one; 17-Groove two; 18-Support plate; 19-Module plate; 20-Intercepting hole; 21-Limiting part one; 22-Limiting part two; 23-Positioning protrusion; 24-Positioning groove; 25-Lens. Detailed Implementation

[0051] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to specific embodiments.

[0052] like Figures 1-8 As shown, a novel miniaturized autofocus motor includes a base 1, a carrier 2, a housing 4, a drive source 3, and a module plate 19. The carrier 2 has an assembly space for mounting a lens 25. The housing 4 has an accommodating space on its inner side, and the housing 4 is connected to the base 1. An insertion hole 20 is provided on the housing 4. The drive source 3 is used to drive the carrier 2 to move relative to the base 1 along the optical axis and is located in the accommodating space. The module plate 19 is provided with an image sensor and is inserted into the interior of the housing 4 through the insertion hole 20, located on one side of the assembly space.

[0053] In this embodiment, along the optical axis, there is a first gap between one end of the carrier 2 and the base 1, and a second gap between the other end of the carrier 2 and the outer shell 4. The first and second gaps provided in this embodiment allow for good displacement of the carrier in the positive and negative focal length directions, thereby meeting different focusing requirements.

[0054] In different embodiments of the present embodiment, the driving source 3 can be different motors, such as a piezoelectric motor or an SMA (shape memory alloy) actuator or a voice coil motor, which are all micro driving devices and all realize mechanical movement output through energy conversion, for driving the load (lens 25) to complete accurate positioning, and are all suitable for small size, low load and high precision demand scenarios, do not need the complex reduction mechanism of traditional motors, and can all control movement through electrical signals, facilitating integration with a controller or control system. Among them, the piezoelectric motor is based on the inverse piezoelectric effect, and the piezoelectric material produces a small deformation under the action of alternating voltage, and the small deformation is amplified into continuous movement through a mechanical structure; the SMA actuator is based on the shape memory effect, and the shape memory alloy can be arbitrarily shaped at low temperature, and will change phase and restore the preset shape when heated to the critical temperature, generating a mechanical force of contraction or bending; the voice coil motor is based on the principle of Lorentz force, and when the coil is electrified in the magnetic field generated by the permanent magnet, it will receive the Lorentz force perpendicular to the current direction, driving the coil (or magnet) to move linearly, and changing the current direction can reverse the movement. Based on this, when the driving source 3 generates power, the driving source 3 can drive the carrier 2 to move to produce relative movement with the base 1, so as to realize the focusing of the lens 25. In this structure, the carrier 2 has a transmission part arranged axially along the optical axis, which can be well arranged in the fragmented space, thereby saving the overall volume. As shown in the figure, when the carrier 2 moves upward, the maximum movement length of the carrier 2 is the width of the gap one, and when the carrier 2 moves downward, the maximum movement length of the carrier 2 is the width of the gap two, thereby meeting the focusing requirements of the lens 25. Figure 2

[0055] Further, the driving force of the driving source 3 is axially along the optical axis, the driving source 3 has a connecting part one and a connecting part two, the connecting part one and the connecting part two are separately arranged or integrally arranged, one of the connecting part one and the connecting part two is connected with the base 1, and the other is connected with the carrier 2. In the voice coil motor, the connecting part one and the connecting part two are a split structure, one of which is configured as a coil, and the other is configured as a permanent magnet. After the coil is electrified, a magnetic force is generated with the permanent magnet, thereby driving the carrier 2.

[0056] As shown in the figure, the carrier 2 is arranged in the gap between the base 1 and the lens 25, and the carrier 2 is connected with the base 1 through the connecting part one and connected with the lens 25 through the connecting part two. When the carrier 2 moves upward, the connecting part one is separated from the base 1, and the connecting part two is separated from the lens 25, thereby achieving the focusing of the lens 25. Figure 4 and Figure 5 ​As shown, the carrier 2 is provided with a transmission part extending along the optical axis. The transmission part of the carrier 2 in the embodiment includes a transmission part one 5 and a transmission part two 6, which are oppositely arranged; the transmission part one 5 and / or the transmission part two 6 are connected with the driving source 3, so that the driving source 3 can realize the connection and support of the carrier 2, thereby meeting the focusing requirement. Further, the base 1 is provided with a mounting groove 7, a connecting part one of the driving source 3 is arranged in the mounting groove 7; the transmission part one 5 is provided with a glue dispensing groove 8, glue is dispensed in the glue dispensing groove 8, so that a connecting part two of the driving source 3 is connected with the transmission part one 5. The connecting part one of the driving source 3 is directly placed into the mounting groove 7, so that the assembly positioning of the driving source 3 can be realized, then the connecting part two is matched with the glue dispensing groove 8, after glue dispensing, the installation of the driving source 3 is completed.

[0057] In the embodiment, as shown in Figure 6 and Figure 7As shown, the base 1 has an assembly part 9 arranged axially along the optical axis, the extension direction of the transmission part and the extension direction of the assembly part 9 are opposite, and the transmission member is arranged between the assembly part 9 and the transmission part to be movably connected. Specifically, the transmission part one 5 in the embodiment is provided with a dispensing groove 8 to be connected with the driving source 3 through glue, and the transmission part two 6 and the assembly part 9 are movably connected. Further, one of the assembly part 9 and the transmission part is provided with a plurality of ball grooves 10 for placing the balls 13, and the other is provided with a plurality of rolling grooves for rolling the balls 13. Specifically, the transmission part two 6 is provided with a plurality of ball grooves 10 arranged in a rectangular array, which can be used to place the balls 13 coated with lubricant, and the assembly part 9 is provided with rolling grooves corresponding to two rows of ball grooves 10, which are V grooves or square grooves. The rolling grooves in the embodiment include a rolling groove one 11 and a rolling groove two 12, the rolling groove one 11 is a V groove, and the rolling groove two 12 is a square groove, which better meets the requirements of focusing stability, and at the same time, when the electronic equipment applied by the novel small-sized automatic focusing motor is affected by falling, external impact and other external forces, the overall structural stability is better. In other words, the two groups of balls 13 roll at the same time to realize guiding, and in the rolling process, the rolling groove one 11 plays a good positioning role for the balls 13, so that the balls 13 in the ball groove 10 can only move in the extension direction of the rolling groove one 11 in the rolling groove one 11, thereby limiting the shaking of the carrier 2 in the radial direction, ensuring the straightness and accuracy of the lens 25 during movement, which helps to improve the focusing accuracy, and the rolling groove two 12 provides a plane support for the balls 13, which can bear part of the load of the lens 25 and / or the carrier 2, and at the same time limits the movement range of the carrier 2 in the axial direction to prevent the carrier 2 from deviating, ensuring that the lens 25 works within a reasonable stroke range with stronger support force, and the balls 13 are not easy to derail, so as to achieve the purpose of controlling accuracy and ensuring support force. It can be seen that, through the cooperation of the transmission part and the assembly part 9, the support and transmission of the carrier 2 are extended to the lower space, and the length and width directions can be designed to the limit according to the size of the loaded lens 25, so as to better realize miniaturization and light weight.

[0058] It should be noted that in the embodiment, the ball 13 is configured as a transmission member, which can also be a suspension wire or a spring piece or a roller or a slide bar. In particular, in one implementation, when a suspension wire or a spring piece is used, the suspension wire or spring piece can be used to suspend the carrier 2 relative to the base 1, thereby better realizing the connection stability of the drive source 3 to the carrier 2. In another implementation, when the ball 13 or the roller or the slide bar is used, the drive source 3 can be configured as a piezoelectric motor or an SMA actuator to realize the gap one. As can be seen, in this implementation, the piezoelectric motor or the SMA actuator is connected to the transmission part, so that the carrier 2 is suspended relative to the base 1 under the action of the drive source 3, that is, a gap one is generated. At the other end of the relative gap one, there is also a gap two between the carrier 2 and the shell 4. Therefore, when the drive source 3 acts, the drive source 3 can drive the carrier 2 to move in the focusing direction, and the movement distance is the sum of the width of the gap one and the width of the gap two, which can well meet the focusing requirement. Therefore, this implementation can well meet the focusing requirement on the basis of meeting the miniaturization of the volume.

[0059] In the embodiment, one of the assembly part 9 and the transmission part is provided with a magnet 14, and the other is provided with a steel sheet 15. Specifically, the assembly part 9 is provided with a groove part one 16, and the transmission part two 6 is provided with a groove part two 17 located between the two rows of ball grooves 10. The steel sheet 15 is placed in the groove part one 16, and the magnet 14 is placed in the groove part two 17. After the base 1 and the carrier 2 are assembled, due to the attraction between the steel sheet 15 and the magnet 14, the transmission part can stably movably connect the assembly part 9 through the ball 13, so that the carrier 2 and the base 1 form a stable sliding connection along the optical axis.

[0060] As shown in Figure 2 and Figure 3 In the embodiment, the base 1 is provided with a support plate 18, and the module plate 19 is inserted into the inside of the shell 4 from the insertion hole 20 to be fixed on the support plate 18. This structure is simple and easy to realize, can well meet the installation of the module plate 19, and has high overall structural strength and good support stability. The image sensor is installed on the module plate 19 and can be used to sense the imaging clarity. The image sensor on the module plate 19 collects the contrast data of the picture in real time, converts it into an electrical signal and transmits it to the control chip as a basis for judging the focusing state. Generally, the module plate 19 and the support plate 18 can be buckled to realize fixation, or can be fixed by dispensing after the module plate 19 is inserted into the shell 4.

[0061] As shown in Figure 5As shown, in the present embodiment, the carrier 2 is provided with a limiting part one 21 cooperating with the housing 4, and is also provided with a limiting part two 22 cooperating with the base 1. The limiting part one 21 is a protruding block structure, and the limiting part two 22 is configured as an end of the transmission part one 5 and the transmission part two 6. The limiting part one 21 and the limiting part two 22 can prevent collision, thereby limiting the focusing limit position and protecting the lens 25.

[0062] In assembly, the hollow region in the middle of the carrier 2 is the region for assembling the lens 25, i.e. the assembly space of the carrier 2, and the module plate 19 is loaded in the last step of assembling the novel miniaturized autofocus motor. The lower end of the carrier 2 has two square transmission blocks extending downward, i.e. the transmission part one 5 and the transmission part two 6, the transmission part one 5 is provided with a rolling groove one 11 and a rolling groove two 12, and a groove part one 16 for placing a steel sheet 15, and the assembly part 9 of the base 1 is provided with a ball groove 10 and a groove part two 17 for placing a magnet 14, the ball groove 10 is loaded with a ball 13 for point lubrication, and the groove part two 17 is loaded with the magnet 14, the steel sheet 15 is loaded into the groove part one 16 by means of point gluing, and then the support plate 18 is connected to the upper side of the base 1.

[0063] Then the assembled carrier 2 is inserted into the base 1, at this time the steel sheet 15 and the magnet 14 are attracted to each other, and the movable cooperation between the carrier 2 and the base 1 is well achieved through the ball 13. The steel sheet 15 can be replaced by other metals or alloys that can be attracted by the magnet 14. Then the driving source 3 is loaded, the connecting part one of the driving source 3 is installed in the mounting groove 7 in the base 1, and then the connecting part two of the driving source 3 is fixed by point gluing in the point gluing groove 8. In some embodiments, the projection of the support plate 18 on the base 1 is staggered with the mounting groove 7, so as to avoid the assembly interference of the driving source 3. In some other embodiments, the support plate 18 is provided with a passing hole or a passing groove, so as to avoid the motion interference with the driving source 3. Of course, in some other embodiments, a gap is reserved between the connecting part two of the driving source 3 and the support plate 18 in the direction of the optical axis, and when the driving source 3 is a piezoelectric motor or an SMA actuator, the deformation length thereof is less than the length of the reserved gap.

[0064] In this embodiment, the base 1 is provided with a positioning protrusion 23, and the shell 4 is provided with a positioning groove 24. The positioning protrusion 23 and the positioning groove 24 are matched to quickly realize the installation connection between the base 1 and the shell 4. It can be understood that the base 1 can also be provided with a positioning groove 24, and the shell 4 can be provided with a positioning protrusion 23. In this way, the positioning and installation requirements can also be met. When the positioning groove 24 on the shell 4 is matched and installed with the positioning protrusion 23 on the base 1, the module plate 19 is inserted into the insertion hole 20 on the shell 4, and the glue sealing operation is performed to realize the installation of the module plate 19. In this way, the module plate 19 is inserted from the side of the shell 4 and fixed on the support plate 18. The new small-sized autofocus motor can realize the split structure of the module plate 19 forming the boundary line between the lens 25 and the driving source 3 while ensuring that the focusing function is not affected. The assembly process is effectively simplified.

[0065] Generally, the lens module includes the new small-sized autofocus motor and the lens 25. Therefore, after the above steps are completed, the lens 25 is assembled into the new small-sized autofocus motor by using an automatic alignment device, and the gap is filled with glue. Thus, the assembly of the lens module is completed.

[0066] The embodiment can be applied to various electronic products. The electronic products include a lens module, which includes the new small-sized autofocus motor and the lens 25 arranged on the carrier 2. The electronic products can be a mobile phone, a computer, a monitor, a drone, and the like. The electronic products can also be glasses, especially AI glasses.

[0067] Further, when the electronic product of the embodiment is used as AI glasses, the AI glasses further comprise a glasses frame provided with a temple, and the lens module is arranged on the temple; the extension direction of the optical axis of the lens module is consistent with at least part of the extension direction of the temple. Further, the glasses frame is provided with a lens, and the lens module and the glasses frame satisfy the relationship F1*L1>F2*L2, where F1 is the support force at the temple, L1 is the distance between the force bearing position of the temple and the gravity center of the lens module, F2 is the support force at the lens of the glasses frame, and L2 is the distance between the force bearing position of the lens of the glasses frame and the gravity center of the lens module. It should be explained that the support force at the temple is usually the support force brought by the ears of the user, and the support force at the lens is from the nose of the user and realized by the nose pad. The embodiment can position the installation position of the lens module by a mechanical algorithm to reduce the load burden of the user on the glasses. In the embodiment, the arrangement direction of the lens assembly is consistent with at least part of the extension direction of the temple, in other words, the arrangement direction of the lens assembly is consistent with the first visual angle of the user, in order to simplify the process, the temple is perpendicular or close to perpendicular to the lens, so that the arrangement direction of the lens assembly is consistent with the extension direction of the temple, and the shooting visual angle is consistent with the first visual angle of the user as much as possible. At this time, the specific structure of the transmission part, the assembly part 9 and the driving source 3 can greatly extend the distance from the lens 25, thereby reserving sufficient design space for product updating in the later stage, and based on the arrangement direction of the lens assembly, the ball 13 can also be used as a support part of the carrier 2 to improve the transmission stability. In addition, because the size (width, thickness) of the lens module in the vertical optical axis direction is based on the size of the lens 25, therefore in the actual production process, the size of the lens 25 can be reduced to a non-negative infinitesimal according to the actual needs of the electronic product, thereby further realizing the technical effect of miniaturization and lightness of the glasses product as a whole.

[0068] Generally, in actual application, people with high shooting requirements can choose a piezoelectric motor or an SMA actuator as the driving source 3, and a suspension wire or a spring sheet is used as a transmission member between the carrier 2 and the base 1, so that the combination can realize focusing and anti-shake at the same time, and provide image quality; people with daily use requirements can choose a voice coil motor as the driving source 3, and a ball 13 or a roller or a slide rod is used as a transmission member between the carrier 2 and the base 1, so that the combination can well meet the focusing requirements and meet the daily use requirements. Of course, there can be other combinations, such as a piezoelectric motor combined with a ball 13.

[0069] It should be noted that in the overall assembly of the AI glasses, since the lens module needs to be installed on the lens frame of the glasses, a sufficient lens module installation space must be reserved in advance at the lens frame. In order to meet this installation space requirement, the frame of the AI glasses often needs to be thickened or widened. However, this thick frame design has obvious technical defects: on the one hand, the thickened and widened frame will block the user's peripheral vision, making it difficult for the user to achieve a truly first-person perspective when shooting, affecting the authenticity and immersion of the shooting; on the other hand, the excessively wide design of the lens frame will directly lead to an increase in the overall weight of the AI glasses frame, thereby adversely affecting the wearing comfort of the end user and reducing the product's user experience. Therefore, when the embodiment is based on the module board jack assembly, the carrier is provided with a transmission part extending along the optical axis in the axial direction, the base has an assembly part extending along the optical axis in the axial direction, and the extension direction of the transmission part and the extension direction of the assembly part are opposite, which can well reduce the installation space of the lens module, realize the thinness of the assembly position, and thus optimize the end user's experience.

[0070] The above is only the preferred embodiment of the present application, and it should be noted that the above preferred embodiment should not be regarded as a limitation of the present application, and the protection scope of the present application should be limited by the scope defined by the claims. For ordinary skilled persons in the art, several improvements and refinements can be made without departing from the spirit and scope of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A novel compact auto-focusing motor characterized in that, It comprises: a base; a carrier having an assembly space for placing a lens; a housing having an accommodation space on its inner side, the housing and the base being connected, the housing being provided with a through hole; a driving source for driving the carrier to move axially along the optical axis relative to the base, located in the accommodation space; and a module plate provided with an image sensor, the module plate being inserted into the interior of the housing from the through hole and located on one side of the assembly space.

2. The novel miniaturized autofocus motor according to claim 1, wherein the driving force of the driving source is axial along the optical axis, the driving source has a connecting part one and a connecting part two, the connecting part one and the connecting part two are provided separately or integrally, one of the connecting part one and the connecting part two is connected with the base, and the other is connected with the carrier. The base is provided with a mounting groove, and the connecting part one of the driving source is arranged in the mounting groove.

3. A novel compact auto-focusing motor as claimed in claim 2, wherein, The carrier is provided with a dispensing groove, and the connecting part two of the driving source is connected with the carrier by dispensing in the dispensing groove. The carrier is provided with a transmission part extending axially along the optical axis, and the base is provided with an assembly part extending axially along the optical axis, the extension direction of the transmission part and the extension direction of the assembly part are opposite, and a transmission member is arranged between the assembly part and the transmission part for loose fit.

4. A novel compact auto-focusing motor as claimed in claim 1, wherein, The transmission member is at least one of a suspension wire, a spring piece, a ball, a roller, and a slide rod.

5. A novel compact auto-focusing motor as claimed in claim 4, characterized in that, One of the assembly part and the transmission part is provided with a plurality of ball grooves for placing balls, and the other is provided with a plurality of rolling grooves for rolling of the balls.

6. A novel compact auto-focusing motor as claimed in claim 5, characterized in that, The rolling groove is a V-shaped groove or a square groove.

7. A novel compact auto-focusing motor as claimed in claim 6, characterized in that, One of the assembly part and the transmission part is provided with a magnet, and the other is provided with a steel sheet.

8. A novel compact auto-focusing motor as claimed in claim 4, wherein, The base is provided with a support plate, and the module plate is inserted into the interior of the housing from the through hole to be fixed on the support plate.

9. A novel compact auto-focusing motor as claimed in claim 1, wherein, The carrier is provided with a limiting part one matched with the housing and a limiting part two matched with the base.

10. A novel compact auto-focusing motor as claimed in claim 1, wherein, It further comprises a lens module, which comprises:

11. An electronic product, characterized by comprising: the novel miniaturized autofocus motor according to any one of claims 1-10, and a lens placed on the carrier. It further comprises:

12. An electronic product as claimed in claim 11, characterized in that a spectacle frame provided with a temple, and the lens module is arranged on the temple. The extension direction of the lens module along the optical axis is consistent with the extension direction of at least a part of the temple. The lens module and the spectacle frame satisfy the relationship F1×L1>F2×L2, wherein F1 is the support force at the temple, L1 is the distance between the force receiving position of the temple and the center of gravity of the lens module, F2 is the support force at the lens of the spectacle frame, and L2 is the distance between the force receiving position of the lens of the spectacle frame and the center of gravity of the lens module.

13. An electronic product as claimed in claim 12, characterized in that ​

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