CN210666161U - Automatic focusing motor and terminal equipment - Google Patents

Abstract

The utility model relates to an automatic focusing motor and terminal equipment, automatic focusing motor includes base and shell, the shell lock is in form the chamber that holds that is used for holding other parts on the base, the projection of base and shell along the lock direction all is circular. This is disclosed all sets the projection of base and shell along the lock direction with the auto focus motor to circular to make the chamber that holds that base and shell lock formed be closer to the shape of lens subassembly, reduced the unnecessary space extravagant. In the case of accommodating the same size lens assembly, the automatic focusing motor of the present disclosure occupies a smaller space, which is more advantageous for miniaturization of the terminal device.

Description

Automatic focusing motor and terminal equipment

Technical Field

The present disclosure relates to the field of electronic devices, and in particular, to an automatic focusing motor and a terminal device.

Background

In order to facilitate the user to take a picture and record the good moment in life, the terminal devices such as the mobile phone and the like are respectively provided with a camera assembly, the camera assembly generally comprises a lens assembly and a matched automatic focusing motor, and the lens assembly is driven to move by the automatic focusing motor so as to change the focal length of the lens assembly.

In the correlation technique, the automatic focusing motor comprises a base, a carrier and a shell, wherein the shell and the base are buckled to form a containing cavity, the carrier is arranged in the containing cavity, a lens component is fixedly arranged inside the carrier, a coil is wound on the outer side wall of the carrier, two end heads of the coil are connected with a metal piece on the base and connected with an external power supply through the metal piece, a magnet is arranged on the inner side wall of the shell, and an elastic piece is arranged between the upper end and the lower end of the carrier and between the base and the shell. When current is introduced into the coil, repulsive force is generated between the coil and the magnet, and the carrier is pushed to move under the action of the repulsive force, so that the lens component is driven to move to change the focal length.

However, the base and the housing in the prior art are both generally square structures, the lens assembly is generally circular, in order to accommodate the lens assembly, the side length of the square housing needs to be slightly larger than the diameter of the lens assembly, and since the diagonal of the square is larger than the side length, the area occupied by the base and the housing is larger than the area actually required by the lens assembly, that is, the external fixed size needs to be fixed according to the sizes of the square base and the housing 10, so that the automatic focusing motor occupies a large amount of space of the terminal device.

SUMMERY OF THE UTILITY MODEL

The embodiment of the disclosure provides an automatic focusing motor and terminal equipment, and solves the problem that the automatic focusing motor occupies a large space.

According to a first aspect of the embodiments of the present disclosure, an auto-focus motor is provided, including a base and a housing, the housing is fastened to form a cavity for accommodating other components on the base, and projections of the base and the housing along a fastening direction are both circular.

In some possible embodiments, a carrier, a coil and a magnet are disposed in the accommodating cavity, a first elastic member is disposed between the carrier and the base, a second elastic member is disposed between the carrier and the housing, the carrier includes a carrier base and a protrusion vertically disposed on the carrier base, the diameter of the protrusion is smaller than that of the carrier base, the coil is wound on an outer sidewall of the protrusion, and the magnet is fixed on an inner sidewall of the housing.

In some possible embodiments, the magnet includes a plurality of magnets, and the inner side wall of the housing is provided with a plurality of grooves for accommodating the magnets, and the magnets are disposed in the grooves.

In some possible embodiments, the magnet is bonded within the groove.

In some possible embodiments, the first elastic member and the second elastic member are both springs.

In some possible embodiments, the joint of the coil is connected with the first elastic piece, and the first elastic piece is connected with a metal piece on the base in a welding mode.

In some possible embodiments, the base includes a bottom wall and a plurality of guide members vertically disposed on the bottom wall, the guide members are arc-shaped, and the plurality of guide members are disposed on the same circumferential surface at equal intervals; the shell comprises a top wall and an annular side wall, the annular side wall is vertically arranged on the edge of the top wall, and the guide piece abuts against the annular side wall so that the base and the shell are buckled.

In some possible embodiments, a clamping groove is formed in an outer side wall of the guide part, a buckle matched with the clamping groove is formed in an inner side wall of the annular side wall, and the base and the shell are fixed in a clamping mode through matching of the clamping groove and the buckle.

In some possible embodiments, an external thread is provided on an outer side wall of the guide member, an internal thread adapted to the external thread is provided on an inner side wall of the annular side wall, and the base and the housing are connected by a matching thread of the external thread and the internal thread.

According to another aspect of the embodiments of the present disclosure, there is provided a terminal device including the autofocus motor as described above.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

this is disclosed all sets the projection of base and shell along the lock direction with the auto focus motor to circular to make the chamber that holds that base and shell lock formed be closer to the shape of lens subassembly, reduced the unnecessary space extravagant. In the case of accommodating the same size lens assembly, the automatic focusing motor of the present disclosure occupies a smaller space, which is more advantageous for miniaturization of the terminal device.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram of an autofocus motor of the prior art.

Fig. 2 is a schematic diagram of another autofocus motor of the prior art.

Fig. 3 is a block diagram of an autofocus motor according to an exemplary embodiment.

Fig. 4 is an exploded view of fig. 3.

Fig. 5 is a schematic structural diagram of a terminal device shown according to an exemplary embodiment.

Description of reference numerals:

10-a housing;

20-a coil;

30-a magnet;

100-a base;

110-a bottom wall;

120-a guide;

200-a housing;

210-a top wall;

220-annular side wall;

300-a carrier;

310-a carrier base;

320-a boss;

400-coil;

500-a magnet;

600-a first elastic member;

700-a second elastic member;

810-a memory;

820-a processor;

830-power supply components;

840-multimedia components;

850-an audio component;

860-input/output (I/O) interface;

870-a sensor assembly;

880-communication component.

With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods. For details not disclosed in the embodiments of the apparatus of the present disclosure, refer to the embodiments of the method of the present disclosure.

FIG. 1 is a schematic diagram of an auto focus motor of the prior art; FIG. 2 is a schematic view of another prior art autofocus motor configuration; please refer to fig. 1-2. In the prior art, the auto-focusing motor comprises a base, a carrier and a housing 10, wherein the housing 10 and the base are buckled to form a containing cavity, the carrier is arranged in the containing cavity, a lens component is fixedly arranged inside the carrier, a coil 20 is wound on the outer side wall of the carrier, two ends of the coil 20 are connected with a metal piece on the base and connected with an external power supply through the metal piece, a magnet 30 is arranged on the inner side wall of the housing 10, and an elastic piece is arranged between the upper end and the lower end of the carrier and the base and the housing 10. When current is applied to the coil 20, a repulsive force is generated between the coil 20 and the magnet 30, and the carrier is pushed to move under the action of the repulsive force, so that the lens assembly is driven to move to change the focal length.

However, in the prior art in which the base and the housing 10 are both generally square in configuration and the lens assembly is generally circular, the coil 20 is shaped to conform to the outer walls of the carrier, and the magnets 30 may be disposed at the four corners of the housing 10 as shown in fig. 1 or may be disposed at the four sides of the housing 10 as shown in fig. 2. As can be seen from fig. 1 and 2, in order to accommodate the lens assembly, the side length of the square housing 10 needs to be slightly larger than the diameter of the lens assembly, and since the diagonal line of the square is larger than the side length, the area occupied by the base and the housing 10 is larger than the area actually required by the lens assembly, that is, the external fixed size needs to be fixed according to the size of the square base and the housing 10, so that the auto-focusing motor occupies a large amount of space of the terminal device.

Example one

FIG. 3 is a block diagram of an autofocus motor shown in accordance with an exemplary embodiment; FIG. 4 is an exploded view of FIG. 3; please refer to fig. 3-4. In order to solve the above problem, the present embodiment provides an auto-focus motor, which includes a base 100 and a housing 200, wherein the housing 200 is fastened to the base 100 to form a receiving cavity for receiving other components, and projections of the base 100 and the housing 200 along a fastening direction (a first direction shown in fig. 4) are both circular.

The base 100 and the housing 200 are both provided with through holes for the lens assembly to pass through, the base 100 includes a bottom wall 110 and a plurality of guide pieces 120 vertically arranged on the bottom wall 110, a projection of the bottom wall 110 in a first direction is circular, the guide pieces 120 are arc-shaped, and the plurality of guide pieces 120 are arranged on the same circumferential surface at equal intervals; the housing 200 includes a top wall 210 and a ring-shaped sidewall 220, a projection of the top wall 210 in the first direction is ring-shaped, the ring-shaped sidewall 220 is vertically disposed at an edge of the top wall 210, and the guide 120 abuts on the ring-shaped sidewall 220 to snap the base 100 and the housing 200.

The receiving cavity is provided with a carrier 300, a coil 400 and a magnet 500, a first elastic member 600 is arranged between the carrier 300 and the bottom wall 110, a second elastic member 700 is arranged between the carrier 300 and the top wall 210, and a mounting hole for mounting a lens assembly is formed in the carrier 300, and the lens assembly is arranged in the mounting hole. The carrier 300 includes a carrier base 310 and a protrusion 320 vertically disposed on the carrier base 310, and projections of the protrusion 320 on the base 310 in the first direction are also circular. The boss 320 has a diameter smaller than that of the carrier base 310, the coil 400 is wound on an outer sidewall of the boss 320, and the magnet 500 is fixed on an inner wall of the annular sidewall 220.

The magnet 500 includes a plurality of magnets, and the annular sidewall 220 is provided with a plurality of grooves for accommodating the magnets, and the plurality of magnets are respectively disposed in the plurality of grooves. In an alternative embodiment, as shown in fig. 4, the magnet 500 comprises four arc-shaped magnets, and the annular sidewall 220 is provided with four arc-shaped grooves for accommodating the magnets, and the magnets can be fixed in the grooves by means of bonding.

In this embodiment, the first elastic member 600 and the second elastic member 700 may be both springs. The joint of the coil 400 is connected with the first elastic element 600, the first elastic element 600 is welded with a metal element on the base 310 and is connected with an external driving circuit board through the metal element, so that power supply to the coil 400 is realized, a magnetic field generated after the coil 400 is electrified interacts with a magnetic field generated by the magnet 500, an acting force along a first direction is formed, the carrier moves under the driving of the acting force, and then the lens assembly is driven to change the focal length of the lens assembly.

The technical scheme provided by the embodiment can have the following beneficial effects:

in the embodiment, projections of the base 100 and the housing 200 of the auto-focusing motor along the buckling direction are both set to be circular, so that the accommodating cavity formed by buckling the base 100 and the housing 200 is closer to the shape of the lens assembly, and unnecessary space waste is reduced. In the case of accommodating the same size lens assembly, the automatic focusing motor of the present disclosure occupies a smaller space, which is more advantageous for miniaturization of the terminal device.

In this embodiment, the fixed connection between the base 100 and the housing 200 may be implemented by the following scheme:

in an alternative embodiment, a clamping groove is provided on an outer side wall of the guide member 120, a buckle adapted to the clamping groove is provided on an inner side wall of the annular side wall 220, and the base 100 and the housing 200 are clamped and fixed by the matching of the clamping groove and the buckle.

In another alternative embodiment, the outer side wall of the guide member 120 is provided with an external thread, the inner side wall of the annular side wall 220 is provided with an internal thread matching with the external thread, and the base 100 and the housing 200 are connected by the matching threads of the external thread and the internal thread.

Of course, it is clear to those skilled in the art that other connection manners may be adopted to fixedly connect the base 100 and the housing 200, which is not further limited in this embodiment.

Example two

The present embodiment provides a terminal device, which includes the autofocus motor as described in the first embodiment.

Specifically, the terminal device of this embodiment may be a mobile phone, a computer, a tablet device, a personal digital assistant, a medical device, a fitness device, and the like, and this embodiment is not limited to a specific form.

Because the projection of the base and the shell of the automatic focusing motor along the buckling direction are all set to be circular in the terminal equipment provided by the embodiment, the space occupied by the whole automatic focusing motor is smaller on the premise of accommodating the lens assembly with the same size, and the miniaturization of the terminal equipment is more facilitated.

Fig. 5 is a schematic structural diagram of a terminal device according to an exemplary embodiment, and as shown in fig. 5, the terminal device includes:

a memory 810 and a processor 820.

Memory 810 is used to store executable instructions for processor 820.

In the above terminal embodiments, it is understood that the Processor 820 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor, and the aforementioned memory may be a read-only memory (ROM), a Random Access Memory (RAM), a flash memory, a hard disk, or a solid state disk. SIM cards, also known as subscriber identity cards, smart cards, must be installed in a digital mobile phone for use. That is, the information of the digital mobile phone client, the encrypted key and the contents of the user's phone book are stored on the computer chip. The steps of the method in connection with the embodiment may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor.

The terminal device may include one or more of the following components: memory 810, processor 820, power component 830, multimedia component 840, audio component 850, input/output (I/O) interface 860, sensor component 870, and communication component 880.

The processor 820 generally controls the overall operation of the terminal device, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processor 820 may include one or more sub-processors to execute instructions to perform all or a portion of the steps of the methods described above. Further, processor 820 may include one or more modules that facilitate interaction between processor 820 and other components. For example, the processor 820 may include a multimedia module to facilitate interaction between the multimedia component 840 and the processor 820.

The memory 810 is configured to store various types of data to support operations at the terminal device. Examples of such data include instructions for any application or method operating on the terminal device, contact data, phonebook data, messages, pictures, videos, etc. The memory 810 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power supply component 830 provides power to the various components of the terminal device. The power components 830 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for a terminal device.

The multimedia component 840 includes a touch sensitive display screen providing an output interface between the terminal device and the user. In some embodiments, the touch display screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 840 includes a front facing camera and/or a rear facing camera. When the terminal device is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

Audio component 850 is configured to output and/or input audio signals. For example, the audio component 850 includes a Microphone (MIC) configured to receive external audio signals when the terminal device is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in memory 810 or transmitted via communications component 880. In some embodiments, audio component 850 also includes a speaker for outputting audio signals.

I/O interface 860 provides an interface between processor 820 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 870 includes one or more sensors for providing status assessment of various aspects to the terminal device. For example, sensor assembly 870 may detect an open/closed status of the terminal device, a relative positioning of components, such as a display and keypad of the terminal device, a change in position of the terminal device or a component of the terminal device, the presence or absence of user contact with the terminal device, orientation or acceleration/deceleration of the terminal device, and a change in temperature of the terminal device. The sensor assembly 870 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 870 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 870 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 880 is configured to facilitate communication between the terminal device and other devices in a wired or wireless manner. The terminal device may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 880 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 880 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

Of course, the structure of the terminal device is not limited thereto, and the embodiment is only illustrated here.

In an exemplary embodiment, the terminal device may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (8)

1. An automatic focusing motor is characterized by comprising a base and a shell, wherein the shell is buckled on the base to form an accommodating cavity, and the projections of the base and the shell along the buckling direction are both circular;

the accommodating cavity is internally provided with a carrier, a coil and a magnet, the magnet comprises a plurality of magnets, the magnets are arc-shaped, the inner side wall of the shell is provided with a plurality of grooves for accommodating the magnets, and the magnets are arranged in the grooves;

the base comprises a bottom wall and a plurality of guide pieces vertically arranged on the bottom wall, the guide pieces are arc-shaped, and the guide pieces are arranged on the same circumferential surface at equal intervals; the shell comprises a top wall and an annular side wall, the annular side wall is vertically arranged on the edge of the top wall, and the guide piece abuts against the annular side wall so that the base and the shell are buckled.

2. The autofocus motor of claim 1, wherein a first resilient member is disposed between the carrier and the base, a second resilient member is disposed between the carrier and the housing, the carrier includes a carrier base and a protrusion vertically disposed on the carrier base, the protrusion has a diameter smaller than that of the carrier base, the coil is wound on an outer sidewall of the protrusion, and the magnet is fixed on an inner sidewall of the housing.

3. The autofocus motor of claim 1, wherein the magnet is bonded within the recess.

4. The autofocus motor of claim 2, wherein the first and second resilient members are each a spring.

5. The autofocus motor of claim 4, wherein the joint of the coil is connected to the first resilient member, and the first resilient member is welded to the metal member on the base.

6. The auto-focusing motor of claim 1, wherein a slot is disposed on an outer side wall of the guide member, a buckle adapted to the slot is disposed on an inner side wall of the annular side wall, and the base and the housing are fixed by engaging the slot and the buckle.

7. The autofocus motor of claim 1, wherein the outer sidewall of the guide member has an external thread, the inner sidewall of the annular sidewall has an internal thread adapted to the external thread, and the base and the housing are connected by the external thread and the internal thread.

8. A terminal device characterized by comprising an autofocus motor according to any one of claims 1 to 7.

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