WO2020062345A1

WO2020062345A1 - Linear motor, telescopic camera assembly and mobile phone

Info

Publication number: WO2020062345A1
Application number: PCT/CN2018/110371
Authority: WO
Inventors: 霍卫红; 谢伟群
Original assignee: 深圳市兆威机电股份有限公司
Priority date: 2018-09-27
Filing date: 2018-10-16
Publication date: 2020-04-02
Also published as: CN109088964A; CN109088964B

Abstract

Provided are a linear motor, a telescopic camera assembly and a mobile phone. The linear motor comprises a bracket, a rotor, a stator and an elastic member, wherein the stator is fixed on the bracket; the rotor is movably arranged on the bracket, and the elastic member is arranged between the rotor and the bracket; the stator can drive the rotor to move linearly; and the elastic member has an elastic force capable of driving the rotor to move away from the stator. The telescopic camera assembly is applied to an electronic device, and comprises a camera module, an elastic driver and a linear motor, wherein the camera module is provided with a connection rod; a rotor of the linear motor is provided with a connection portion; the linear motor can drive the connection portion and the connection rod to be engaged with or disengaged from each other; and the elastic driver is arranged between the electronic device and the camera module, and when the connection portion is separated from the connection rod, the elastic driver drives the camera module to extend and retract relative to the electronic device. The mobile phone comprises a mobile phone body and a telescopic camera assembly. The linear motor can be thinner in thickness, the telescopic camera assembly has a good telescopic performance, and the mobile phone is more energy-saving.

Description

Linear motor, telescopic camera assembly and mobile phone

Cross-reference to related applications

This application claims priority from a Chinese patent application filed with the Chinese Patent Office on September 27, 2018 under the application number CN201811130537.4 and entitled "Linear Motor, Telescopic Camera Assembly, and Mobile Phone", the entire contents of which are incorporated herein by reference. Applying.

Technical field

The present application relates to the field of linear motion mechanisms, and in particular, to linear motors, telescopic camera assemblies, and mobile phones.

Background technique

The full-screen mobile phone has been favored by consumers and promoted by manufacturers for its excellent display characteristics. However, the front-facing camera must be configured on the mobile phone, which prevents the mobile phone from truly achieving a full-screen. Other parts of the mobile phone screen can not be displayed on the top, forming a display blind area, which is generally known as "qi bangs."

In order to achieve full-screen display of a mobile phone, in the prior art, a mobile phone camera is connected to the mobile phone in a liftable manner, the mobile phone camera is raised when needed, and is normally retracted into the mobile phone to hide in a normal state. In the existing mobile phone camera lifting solution, a linear motion mechanism is used to drive the camera to expand and contract relative to the mobile phone. The linear motion mechanism includes a rack and pinion mechanism, a screw nut mechanism, and a telescopic rod mechanism.

Both the rack and pinion type and the screw nut type require the driving of a micro motor, and the micro motor consumes power during the camera's lifting operation. On the other hand, due to the limitation of the micro-motor speed, the speed is slower during reset. At the same time, the size of the micro-motor is relatively large, especially the thickness is too large to satisfy the application in mobile phones.

Summary of the Invention

In view of this, the purpose of this application is to overcome the shortcomings in the prior art, and to provide a linear motor, a telescopic camera assembly, and a mobile phone that can be made thinner and lighter and have good telescopic characteristics.

This application provides the following first technical solution:

A linear motor includes a support, a mover, a stator, and an elastic member. The stator is fixed on the support, and the mover is movably disposed on the support and between the mover and the support. The elastic member is provided, and the stator can drive the mover to perform linear motion, and the elastic member has an elastic force that drives the mover away from the stator.

As a further optional solution to the above-mentioned linear motor, the bracket is cylindrical, and one of the mover and the stator is disposed outside the cylinder of the bracket, and the other is disposed inside the cylinder of the bracket.

As a further optional solution to the above-mentioned linear motor, the stator is sleeved outside the bracket, the mover is movably provided in the bracket, and the elastic member is provided between the mover and Between the brackets.

As a further optional solution to the foregoing linear motor, the stator is a coil, the mover includes a magnet and an iron core, the magnet is connected to an end of the iron core, and the iron core is cylindrical;

The bracket includes a neck portion and a disk portion connected to each other, the stator is sleeved outside the neck portion, the elastic member is provided in the iron core and one end abuts against the magnet, and the other end abuts on On the plate.

As a further optional solution to the above-mentioned linear motor, the linear motor further includes a casing, and the casing is magnetically permeable;

One end surface of the magnet is connected to the iron core, and the other end surface is connected to the casing, and the casing is disposed outside the stator;

The distance from the end surface of the housing to the disk portion is not less than the distance from the end surface of the iron core to the disk portion.

As a further optional solution to the above-mentioned linear motor, a limiting jaw is provided on the housing, and the limiting jaw is inserted into the disk portion for limiting the end surface of the housing to the disk. Distance.

As a further optional solution to the above-mentioned linear motor, the elastic member is a compression spring.

This application also provides the following second technical solution:

A telescopic camera assembly, which is applied to electronic equipment, includes a camera module, an elastic driving member, and the linear motor. The camera module is provided with a connecting rod, the linear motor is provided with a connection portion, and the linear motor can be driven. The connecting portion is engaged or disengaged with the connecting rod, and the elastic driving member is provided between the electronic device and the camera module. When the connecting portion is separated from the connecting rod, the elastic driving member drives The camera module is retractable relative to the electronic device.

As a further optional solution to the foregoing telescopic camera assembly, the connecting portion is provided on the stator or the mover, and when the connecting portion is provided on the stator, the position of the mover is fixed, so When the connecting portion is provided on the mover, the position of the stator is fixed.

This application also provides the following third technical solution:

A mobile phone includes a mobile phone body and the aforementioned telescopic camera assembly.

As a further optional solution to the foregoing mobile phone, the mobile phone further includes a trigger switch, and a switch joint is provided on the camera module or the connecting rod, and the camera module is retracted into the mobile phone body, so The switch engaging portion triggers the trigger switch, and a mover of the linear motor drives the connecting portion to engage with the link.

The embodiments of the present application have at least the following advantages:

The linear motor includes a stator, a mover, and an elastic member. The stator can drive the mover to move closer to the stator when the power is turned on, and the elastic member can drive the mover to reset when the power is turned off. Respond in a timely manner, and at the same time, it does not consume power during the reset and saves energy. In addition, the setting of the axial length of the stator and the mover of the linear motor is not limited, so that the thickness of the linear motor is not limited, and thus the linear motor is thinner and thinner. When applied to electronic equipment, such as mobile phones, it can make The structure of the mobile phone is thinner and more compact.

The telescopic camera assembly includes a linear motor and a camera module. The linear motor is used to drive the camera module to move. When the camera module needs to be raised, the linear motor moves by driving the stator linkage connection. The elastic driver ejects the camera module and manually lifts the camera. The module is pushed back, so that the camera module is retracted, the hysteresis is small, and the energy consumption during the expansion and contraction process is small, which reduces the power consumption of electronic equipment.

The mobile phone includes a telescopic camera component. By configuring the telescopic camera component, the front camera of the mobile phone can be prevented from being set on the screen, and the display characteristics of the mobile phone screen are optimized. The structure of the mobile phone is thinner and lighter, and the extension and retraction of the camera module is lagging behind. Smaller, consume less energy.

In order to make the above-mentioned objects, features, and advantages of this application more obvious and easy to understand, the preferred embodiments are described below in detail with the accompanying drawings as follows.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solution of the embodiments of the present application more clearly, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, so It should be regarded as a limitation on the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without paying creative work.

FIG. 1 shows a front view of the overall structure of a telescopic camera assembly according to an embodiment of the present application; FIG.

2 shows a right side view of the overall structure of a telescopic camera assembly provided by an embodiment of the present application;

Figure 3 shows a schematic sectional view A-A of Figure 2;

4 shows a front view of the overall structure of a telescopic camera assembly according to another embodiment of the present application;

5 shows a left side view of the overall structure of a telescopic camera assembly according to another embodiment of the present application;

Fig. 6 shows a schematic cross-sectional structure A-A of Fig. 5.

Icons: 1-Telescopic camera assembly; 11-Camera module; 12-Elastic drive; 13-Linear motor; 131-Bracket; 1311-Neck; 1312-Panel; 132-Motor; 1321-Magnet; 1322-Iron Core; 133-stator; 134-elastic member; 135-shell; 1351-connecting part; 1352-limiting claw; 14- connecting rod.

detailed description

In order to facilitate understanding of the present application, a more comprehensive description of the linear motor, the telescopic camera assembly, and the mobile phone will be described below with reference to the related drawings. The drawings show preferred embodiments of a linear motor, a telescopic camera assembly, and a mobile phone. However, the linear motor, the telescopic camera assembly, and the mobile phone can be implemented in many different forms, and are not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the linear motor, the telescopic camera assembly, and the mobile phone more thorough and comprehensive.

It should be noted that when an element is called “fixed to” another element, it may be directly on the other element or a centered element may exist. When an element is considered to be "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical", "horizontal", "left" or "right" and similar expressions used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms used in the descriptions of the linear motor, the telescopic camera assembly, and the mobile phone herein are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

Example 1

Please refer to FIG. 1 to FIG. 3 together. The telescopic camera assembly 1 is applied to electronic equipment, and includes a camera module 11, an elastic driving member 12, and a linear motor 13. The camera module 11 is connected with a connecting rod 14, and a mover 132 (mentioned below) of the linear motor 13 is provided with a connecting portion 1351. The connecting portion 1351 can be connected to or separated from the connecting rod 14. The elastic driving member 12 is provided between the electronic device and the electronic device. When the connecting portion 1351 and the connecting rod 14 are separated between the camera modules 11, the elastic driving member 12 drives the camera module 11 to expand and contract relative to the electronic device.

As described above, the electronic device may be an electronic device with a camera function such as a mobile phone, a tablet, a camera, or an MP4. The telescopic camera assembly 1 is used as a retractable camera of the electronic device, and is expanded and contracted according to the use requirements. In this embodiment, the telescopic camera assembly 1 is applied to a mobile phone. As a telescopic lens of the mobile phone, it is extended when activated, and retracted and hidden in the mobile phone when not in use.

Further, the mobile phone may be a mobile phone configured with a full screen, and the camera module 11 on the telescopic camera assembly 1 is used as the front camera of the mobile phone, so that the mobile phone has a full screen, and it is not necessary to reserve a front camera installation position on the screen. Causes the display of dark areas, which avoids the setting of "qi bangs". In another embodiment, the camera module 11 is provided with a front camera and a rear camera of the mobile phone at the same time.

The mobile phone includes a mobile phone body and a telescopic camera assembly 1. The mobile phone is equipped with a retractable camera assembly 1 and the camera module 11 is set under the screen and is retractable relative to the mobile phone body. When needed, the camera module 11 is extended from the mobile phone body for framing. When not in use, the camera module 11 is retracted. It is hidden in the mobile phone body to protect the camera module 11 and ensure the structural integrity and durability of the mobile phone.

The expansion and contraction of the camera module 11 on the mobile phone body is controlled by the linear motor 13, and the extension on the mobile phone body is driven by the elastic driving member 12. The camera module 11 is provided with a connecting rod 14, the linear motor 13 is provided with a connecting portion 1351, and an elastic driving member 12 is provided between the camera module 11 and the mobile phone body or between the connecting rod 14 and the mobile phone body. The connecting portion 1351 can be engaged with or disengaged from the connecting rod 14. When the linear motor 13 drives the connecting portion 1351 to engage with the connecting rod 14, the movement of the camera module 11 is restricted and fixed in the mobile phone body. The linear motor 13 drives the connecting portion 1351 and the connecting rod. When 14 is separated, the connection portion 1351 releases the restriction on the movement of the camera module 11, and the elastic driving member 12 drives the camera module 11 to protrude from the mobile phone body.

As described above, the movement direction of the linear motor 13 is perpendicular to the elastic expansion direction of the elastic driving member 12, that is, perpendicular to the movement direction of the camera module 11.

The connecting portion 1351 is a boss on the execution structure provided with the linear motor 13. A groove is correspondingly provided on the connecting rod 14, and the boss is engaged or separated from the groove on the connecting rod 14 by reciprocating linear motion. When the camera module 11 protrudes from the mobile phone body, the linear motor 13 drives the connection portion 1351 to retract all the time, so as not to hinder the reset of the connecting rod 14. When the connecting rod 14 is reset, the camera module 11 is retracted into the mobile phone body. Then, the linear motor 13 drives the connection portion 1351 to be engaged with the connecting rod 14 and fixes the camera module 11 in the mobile phone body.

It can be understood that when the camera module 11 is extended from the mobile phone body, the elastic restoring force of the elastic driving member 12 is used. Once the connecting portion 1351 and the connecting rod 14 are separated, the elastic driving member 12 will eject the camera module 11 by manually The camera module 11 is pushed back into the mobile phone body, the retractability of the camera module 11 is small, and the response is faster.

As described above, the elastic driving member 12 is a compression spring, which is disposed between the camera module 11 and the mobile phone body. The axis of the compression spring is parallel to the connecting rod 14 and parallel to the expansion and contraction of the camera module 11. The elastic driving member 12 may be an elastic member such as an elastic post or an elastic sheet.

The linear motor 13 always drives the connecting portion 1351 to be separated from the connecting rod 14 during the expansion and contraction of the camera. When the camera module 11 is reset, the linear motor 13 needs to drive the connecting portion 1351 to join the connecting rod 14 in time to fix the camera module 11 to the mobile phone body. in.

Further, the mobile phone further includes a trigger switch. A switch joint is provided on the camera module 11 or the connecting rod 14. The camera module 11 is retracted into the body of the mobile phone. The switch joint is engaged with the trigger switch to trigger the trigger switch, and the linear motor 13 is driven and connected. The portion 1351 is engaged with the link 14.

A limiting structure is provided between the mobile phone body and the connecting rod 14 to limit the moving position of the camera module 11 on the mobile phone body, that is, to limit the length of the camera module 11 protruding from the mobile phone body and the position embedded in the mobile phone body When the camera module 11 is embedded in the mobile phone body, its surface is flat with the surface of the mobile phone body. The position of the mobile phone body and the connecting rod 14 can be limited by the contact of the stopper. This structure is relatively common and will not be repeated here.

The trigger switch is provided in the mobile phone body, and the switch joint is provided at the end of the link 14. When the camera module 11 is pushed into place, the end of the link 14 is engaged with the trigger switch, and a switch signal is applied to the trigger switch to make the connection. The portion 1351 is reset to be engaged with the link 14. The trigger switch may be a travel switch and a normally open switch. When the switch joint is engaged with it, the trigger switch is in an open state, and when the switch joint is separated from it, the trigger switch is in a closed state.

When the trigger switch is closed, the linear motor 13 is powered on, so that the driving connection portion 1351 is separated from the connecting rod 14. It can be seen that when the camera module 11 is extended relative to the mobile phone body and during the expansion and contraction process, the linear motor 13 is always powered on. When the camera module 11 is retracted into the mobile phone body, the linear motor 13 is not powered on, and the connection portion 1351 is engaged with the connecting rod 14. During the use of the mobile phone, the usage time of the camera module 11 is not large, and the time for the camera module 11 to be retracted into the body of the mobile phone is longer, so this setting also has a better energy saving effect.

The linear motor 13 includes a bracket 131, a mover 132, a stator 133, and an elastic member 134. The stator 133 is fixed on the bracket 131. The mover 132 is movably disposed on the bracket 131 and an elastic member 134 is provided between the mover 132 and the bracket 131. The stator 133 can drive the mover 132 to perform a linear movement. The elastic member 134 has a drive The mover 132 is away from the elastic force of the stator 133.

As a result, the bracket 131 serves as a bearing member of the linear motor 13 and is configured to mount the mover 132, the stator 133, and the elastic member 134. The stator 133 is used as a driving component, and the mover 132 is used as an execution component. When the stator 133 is powered on, the mover 132 can be driven to move linearly relative to the stator 133. When the stator 133 is not powered, the elastic member 134 drives the mover 132 to reset.

As described above, the driving unit is provided on the mover 132 and moves together with the mover 132.

The bracket 131 is made of a magnetically insulating material or an insulating material. In this embodiment, the bracket 131 is made of a plastic material and has a cylindrical shape. One of the mover 132 and the stator 133 is provided outside the cylinder of the bracket 131. The other is arranged inside the cylinder of the bracket 131, and the mover 132 and the stator 133 are coaxially arranged. By the drive of the stator 133, the mover 132 can move along the axial direction of the bracket 131.

In this embodiment, the stator 133 is sleeved outside the bracket 131, the mover 132 is movably provided in the bracket 131, and an elastic member 134 is provided between the mover 132 and the bracket 131. The elastic member 134 is opposed to the mover on the stator 133 After the elastic force of 132 is eliminated, the mover 132 is reset.

The stator 133 is a coil, and the coil is sleeved outside the bracket 131. The mover 132 includes a magnet 1321 and an iron core 1322. The magnet 1321 is connected to the end of the iron core 1322, and the iron core 1322 is cylindrical. That is, the mover 132 is a cylinder with one end open and the other end closed, and the cylinder is an iron core 1322. The end surface of the cylinder is a magnet 1321.

The bracket 131 includes a neck portion 1311 and a plate portion 1312 connected to each other. The stator 133 is sleeved outside the neck portion 1311, that is, the bracket 131 is a cylinder opened at one end and the other end is closed. The neck portion 1311 is a cylinder portion, and the disk portion 1312 is The end face of the cylinder. The opening of the mover 132 is opposite to the opening of the bracket 131. The elastic member 134 is provided between the bracket 131 and the mover 132. The two ends of the elastic member 134 are respectively connected to the end faces of the mover 132 and the bracket 131, that is, the magnet 1321 is in contact with the plate portion 1312.

The cylindrical shape of the bracket 131 may be a cylinder, or a square cylinder, an oval cylinder, or a cylinder with other special-shaped cross sections. The cross sections of the mover 132 and the stator 133 match the cross sections of the bracket 131.

In this embodiment, the bracket 131 is cylindrical, the neck portion 1311 is a cylinder, and the disk portion 1312 is a circular disk. The bracket 131 can be fixed by the disk portion 1312 to fix the linear motor 13. Thus, the bracket 131 can be used as a carrier for other parts of the linear motor 13 and also as a connection and fixing part of the linear motor 13.

In a normal state, that is, when the stator 133 is not powered on, the elastic member 134 drives the mover 132 to move in a direction separated from the stator 133. When the stator 133 is powered on, a magnetic force is generated and the mover 132 is attracted to move toward the stator 133.

The cross section of the stent 131 is a ring, and the longitudinal section of the stent 131 is an I-shape. That is, a disk portion 1312 is provided at one end of the neck 1311 and a ring is provided at the outer edge of the other end. The ring can be integrally formed with the neck 1311. As a result, the disk portion 1312 is connected to the neck portion 1311 by a flange structure, so that the stator 133 can be installed. The stator 133 is sleeved outside the neck 1311, and the inner hole of the stator 133 and the outer diameter of the neck 1311 are tightly matched, so that the stator 133 is fixed on the bracket 131.

The mover 132 includes an iron core 1322 and a magnet 1321. The iron core 1322 has a circular shape and the magnet 1321 has a cylindrical shape. The diameters of the two can be equal. The end face of the magnet 1321 is connected to the end face of the iron core 1322. The connection between the two can be Screwed through copper drum screws. The two end faces of the magnet 1321 are magnetic poles, that is, the magnetic poles are at both ends of the magnet 1321 in the axial direction.

In the normal state, the elastic member 134 pushes the magnet 1321 so that the magnet 1321 moves in a direction away from the disk portion 1312, that is, moves away from the stator 133. There is a gap between the end surface of the iron core 1322 and the disk portion 1312, and the gap is the mover 132. The maximum stroke to move toward the stator 133. When the stator 133 is powered on, an axial magnetic force is generated on the stator 133. The axial magnetic force causes the magnet 1321 to move toward the disk portion 1312, and the elastic member 134 is compressed. As a result, the mover 132 causes the connection portion 1351 to retract and separate from the connecting rod 14.

The linear motor 13 further includes a casing 135, which is magnetically permeable, and the connection portion 1351 is provided on an end surface of the casing 135. One end surface of the magnet 1321 is connected to the iron core 1322, and the other end surface is connected to the casing 135. The casing 135 is arranged outside the stator 133 and has a cover shape. One end surface is open and the other end surface is closed.

The end face of the housing 135, that is, the end face of the open end, is not less than the distance from the end face of the iron core 1322 to the disk portion 1312, so as not to hinder the movement of the iron core 1322, so that the iron core 1322 can drive the housing 135 moves along with the connection portion 1351 on the housing 135.

The case 135 is made of a magnetically permeable material and may be made of iron. The cover is arranged outside the stator 133, and can transmit the magnetic force generated when the stator 133 is energized to the mover 132, enhance the elastic force of the stator 133 to the mover 132, and effectively drive the mover 132 to the disk portion 1312, and then effectively The connection portion 1351 is retracted.

The housing 135 is provided with a limiting jaw 1352. The limiting jaw 1352 is inserted into the disk portion 1312 to limit the distance from the end surface of the housing 135 to the disk portion 1312. The disk portion 1312 is provided with a sliding groove, and the limiting claw 1352 passes through the sliding groove. The hook portion of the limiting claw 1352 is provided on the back of the disk portion 1312, that is, the opposite of the disk portion 1312 provided with the housing 135. Side. The limiting claw 1352 can slide in the chute. When the hook portion abuts against the disk portion 1312, the housing 135 cannot continue to move. In the normal state, the elastic member 134 separates the housing 135 from the disk portion 1312 by pushing the magnet 1321 and the disk portion 1312, and the limit claw 1352 of the housing 135 abuts against the disk portion 1312, thereby restricting the housing 135 from continuing. The separation from the disk portion 1312 ensures the structural integrity of the linear motor 13.

In this embodiment, the elastic member 134 is a compression spring.

As described above, the axial length of the stator 133 and the mover 132 of the linear motor 13, that is, the thickness is not limited. The movement stroke of the linear motor 13, that is, the movement stroke of the connecting portion 1351 can meet the engagement and disengagement with the connecting rod 14. That is, the joining force between the connecting portion 1351 and the connecting rod 14 may satisfy the compressive force of the elastic driving member 12, and the connection may be provided near the end surface of the housing 135. Therefore, the moving stroke of the connecting portion 1351 can be set smaller, and the structure of the linear motor 13 of the present structure can be set to be lighter and thinner, so that the space occupied by the linear motor 13 in the mobile phone body is small, and the mobile phone is thin and light. And structured design.

In another embodiment, please refer to FIGS. 4 to 6 together. The stator 133 of the linear motor 13 is provided with a connection portion 1351. Specifically, the connection portion 1351 is provided on the disk portion 1312 of the bracket 131, and the housing 135 is fixed by The position of the mover 132 is fixed, so that when the stator 133 is powered on, the stator 133 moves to the mover 132, which in turn causes the stator 133 to move. Since the stator 133 is fixed on the support 131, the support 131 is moved to make the support 131. The upper connecting portion 1351 is separated from the connecting rod 14.

As described above, the connection portions 1351 may be provided at both ends of the linear motor 13. When the connection portions 1351 are provided on the casing 135, the positions of the bracket 131 are fixed. When provided on the bracket 131, the casing 135 is fixed. When the stator 133 is powered on, the thickness of the linear motor 13 becomes thin, and the connection portion 1351 is separated from the connecting rod 14. The stator 133 is powered off. The elastic member 134 drives the stator 133 and the mover 132 away. The thickness of the linear motor 13 becomes thicker, and the connection portion 1351 and The connecting rod 14 is engaged.

In all examples shown and described herein, any specific value should be construed as exemplary only, and not as a limitation, so other examples of the exemplary embodiments may have different values.

It should be noted that similar reference numerals and letters indicate similar items in the following drawings, so once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

The above-mentioned embodiments only express several implementation manners of the present application, and the descriptions thereof are more specific and detailed, but cannot be understood as limiting the scope of the present application. It should be noted that, for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

A linear motor includes a support, a mover, a stator, and an elastic member. The stator is fixed on the support, and the mover is movably disposed on the support. The elastic member is arranged between the brackets, and the stator can drive the mover to perform linear motion, and the elastic member has an elastic force that drives the mover away from the stator.
The linear motor according to claim 1, wherein the stator is sleeved outside the bracket, the mover is movably provided in the bracket, and the elastic member is provided in the mover And the bracket.
The linear motor according to claim 2, wherein the stator is a coil, the mover includes a magnet and an iron core, the magnet is connected to an end of the iron core, and the iron core is cylindrical ;

The bracket includes a neck portion and a disk portion connected to each other, the stator is sleeved outside the neck portion, the elastic member is provided in the iron core and one end abuts against the magnet, and the other end abuts on On the plate.
The linear motor according to claim 3, wherein the linear motor further comprises a housing, and the housing is magnetically permeable;

One end surface of the magnet is connected to the iron core, and the other end surface is connected to the casing, and the casing is disposed outside the stator;

The distance from the end surface of the housing to the disk portion is not less than the distance from the end surface of the iron core to the disk portion.
The linear motor according to claim 4, characterized in that, the housing is provided with a limiting jaw, and the limiting jaw is inserted into the disc portion for limiting the end surface of the housing to the The distance of the plate.
The linear motor according to claim 1, wherein the elastic member is a compression spring.
A telescopic camera assembly, which is applied to electronic equipment, comprises a camera module, an elastic driving member, and the linear motor according to any one of claims 1-6. The camera module is provided with a connecting rod. The linear motor is provided with a connecting portion, the linear motor can drive the connecting portion to be engaged with or disengaged from the connecting rod, and the elastic driving member is provided between the electronic device and the camera module. When the part is separated from the link, the elastic driving member drives the camera module to expand and contract relative to the electronic device.
The telescopic camera assembly according to claim 7, wherein the connecting portion is provided on the stator or the mover, and when the connecting portion is provided on the stator, the position of the mover is fixed, When the connection portion is provided on the mover, the position of the stator is fixed.
The mobile phone comprises a mobile phone body and the telescopic camera assembly according to claim 8.
The mobile phone according to claim 9, wherein the mobile phone further comprises a trigger switch, a switch joint is provided on the camera module or the link, and the camera module is retracted into the mobile phone body, The switch engaging portion triggers the trigger switch, and a mover of the linear motor drives the connecting portion to engage with the link.