CN116132780A - A locking device, camera module and mobile terminal - Google Patents

Abstract

The invention discloses a locking device, a camera module and a mobile terminal. The locking device includes a sleeve, a telescoping part pierced in the sleeve, and a power mechanism. The power mechanism is used to drive the telescopic part to extend out to connect with the lens assembly, so as to lock the lens assembly at this position to avoid shaking or swinging of the lens assembly; Move the lens assembly. Utilizing the locking function of the locking device, the telescopic part can be locked to connect or separate from the lens assembly and maintain this state without continuous power supply, and the power mechanism only needs to drive the telescopic part when the two states are switched. In this way, on the premise of realizing the function of locking the position of the lens assembly, the structure of the locking device is simplified and the energy consumption of the locking device is reduced.

Description

A locking device, camera module and mobile terminal

technical field

The invention relates to the technical field of camera equipment, in particular to a locking device, a camera module and a mobile terminal.

Background technique

For camera modules used in mobile terminals (such as mobile phones, tablet computers, etc.), the lens components are mostly driven by a driving device to achieve effects such as framing and focusing. After the lens assembly moves to a certain position, in order to keep the lens assembly at this position, it is necessary to use the driving device to lock the lens assembly, so as to avoid that the lens assembly may move when the user shakes the mobile terminal during use, affecting the viewfinder, The case of the focusing effect. In the related art, the driving device requires continuous power supply to keep the lens assembly at this position, resulting in high energy consumption of the camera module.

Contents of the invention

The embodiment of the invention discloses a locking device capable of locking the position of the lens assembly without continuous power supply.

In order to achieve the above object, the present invention discloses a locking device in a first aspect, the locking device is applied to a camera module, and the camera module includes a housing and a driving mechanism arranged in the housing, A lens assembly, the drive mechanism is connected to the lens assembly, the drive mechanism is used to drive the lens assembly to move, and the locking device includes:

a sleeve, the sleeve is used to connect with the housing, the axial direction of the sleeve includes a first direction and a second direction opposite to the first direction;

A telescopic part, the telescopic part can be movably installed on the sleeve, and when the lens assembly is moved to correspond to the telescopic part, the telescopic part moves relative to the sleeve along the first direction to be in line with the telescopic part When the telescopic part moves relative to the sleeve along the second direction to separate from the lens assembly, the lens assembly can move so as to be staggered from the telescopic part;

The power mechanism is connected to the telescopic part and is used to push the telescopic part so that the telescopic part moves relative to the sleeve along the first direction or the second direction.

As an optional implementation, in the embodiment of the present invention, the inner wall of the sleeve is provided with a plurality of protrusions, and the plurality of protrusions are distributed at intervals along the circumference of the sleeve, and the plurality of protrusions are arranged at intervals along the circumference of the sleeve. An accommodating space is formed between the side of the projection facing away from the power mechanism and the inner wall of the sleeve, and the accommodating space is used to accommodate the telescopic part. A first locking groove is formed, and the first locking groove communicates with the accommodating space. A second locking groove is provided on the side of the protrusion away from the power mechanism. Along the axial direction of the sleeve, the The depth of the first locking groove is greater than the depth of the second locking groove, the first locking groove and the second locking groove are distributed along the circumferential direction of the sleeve, and the outer periphery of the telescopic part is provided with a first locking groove. A joint part, the first engaging part can be movably engaged in the first card slot or the second card slot;

The power mechanism pushes the telescopic part to move along the first direction and rotates the telescopic part, so that when the telescopic part is connected to the lens assembly, the first engaging part rotates to align with the or, when the power mechanism pushes the telescopic part to move along the second direction and rotates the telescopic part to the retracted state, the first engaging part rotates to match the The first card slot is clamped.

As an optional implementation manner, in the embodiment of the present invention, both the first card slot and the second card slot are plural, and the number of the second card slot is equal to the number of the first card slot. Similarly, along the circumferential direction of the sleeve, a plurality of the first card slots are distributed at intervals, a plurality of the second card slots are distributed at intervals, and the plurality of the first card slots and the plurality of the second card slots The slots are arranged alternately.

As an optional implementation, in the embodiment of the present invention, there are multiple first engaging parts, and the number of the first engaging parts is the same as the number of the first engaging slots, and the number of the first engaging parts is the same as that of the first engaging slots. The first locking slots are distributed at equal intervals, and the plurality of second locking slots are distributed at equal intervals, so that when the telescopic part rotates with respect to the sleeve at any rotation angle, the plurality of first engaging parts engage respectively. The plurality of first card slots, or respectively engaged with a plurality of second card slots.

As an optional implementation, in the embodiment of the present invention, the side of the protrusion facing away from the power mechanism includes a first guide surface located in the second card slot and a guide surface located in the second card slot. a second guide surface outside the groove, the first guide surface and the second guide surface are inclined along the second direction to guide the rotation of the first engaging part;

The first engaging part is provided with a third guiding surface corresponding to the first guiding surface. Connected with the first guide surface, rotate under the guidance of the first guide surface and engage with the step, so that the telescopic part moves along the first direction to connect with the lens assembly; When the push shaft pushes the first engaging part to disengage from the step, the third guide surface is connected to the second guide surface, and rotates under the guidance of the second guide surface to engage with the other guide surface. and a first locking slot, so that the telescopic part moves along the second direction to separate from the lens assembly.

As an optional implementation, in the embodiment of the present invention, the locking device further includes a push shaft, the push shaft is at least partly located in the sleeve and connected to the telescopic part, and the power mechanism passes through the The push shaft is connected to the telescopic part, and the push shaft can move along the axial direction of the sleeve under the driving action of the power mechanism, so that the telescopic part can move along the axial direction of the sleeve and rotate around the sleeve. The axis of the sleeve rotates so that the telescopic part is connected or separated from the lens assembly.

As an optional implementation, in the embodiment of the present invention, one end of the push shaft connected to the telescopic part is provided with a plurality of second engaging parts, and the second engaging parts protrude from the The outer peripheral surface of the push shaft, the second engaging portion is used to connect with the first engaging portion;

The protrusion is also provided with a plurality of third card slots, the number of the third card slots is the same as the number of the first card slots, and the third card slots are arranged on two adjacent first card slots. between the card slots and parallel to the first card slot, and the third card slot communicates with the second card slot;

The number of the second engaging parts is the sum of the numbers of the first engaging slots and the third engaging slots, and a plurality of the second engaging parts are slidably engaged with the first engaging slots and the third engaging slots respectively. Describe the third card slot.

As an optional implementation manner, in the embodiment of the present invention, the second engaging part has a connecting surface corresponding to the first engaging part, and the connecting surface includes two slopes connected in sequence at an angle. The connection positions of the two slopes form convex grooves, and the convex grooves are used for connecting with the first engaging part.

As an optional implementation mode, in the embodiment of the present invention, a first connection block is provided at the end of the push shaft outside the sleeve, and the first connection block is hollow and forms an installation cavity, so The power mechanism includes a magnetic piece and a coil, the installation cavity is used to accommodate the magnetic piece, the coil is arranged in the housing corresponding to the magnetic piece, and the coil is spaced apart from the first connection block.

As an optional implementation manner, in the embodiment of the present invention, the power mechanism further includes a power component and a reset member, and the telescopic part has a first end for connecting with the lens assembly and a first end for connecting with the second a second end opposite to one end, the power component is connected to the second end, and is used to provide a driving force for the telescopic part along the first direction, and the first end is located outside the sleeve, The reset member is connected to the first end and the sleeve, and the reset member is used to provide a restoring force for the telescopic portion along the second direction, so that the telescopic portion and the lens assembly separate.

As an optional implementation, in the embodiment of the present invention, the telescopic part includes a shaft and a locking part connected in sequence, the shaft is movably passed through the sleeve, and the shaft One end is connected to the power mechanism, the locking part is arranged on the other end of the shaft, the locking part protrudes from the outer circumference of the shaft and is located outside the sleeve, the locking part Used to connect or separate from the lens assembly.

As an optional implementation, in the embodiment of the present invention, the power mechanism includes a power component and a reset component, and the power component is connected to one end of the shaft to provide The driving force in the first direction, the reset member is sleeved on the outer circumference of the shaft and connected between the locking portion and the sleeve, the reset member is used to provide the telescopic portion A restoring force along the second direction separates the telescoping portion from the lens assembly.

As an optional implementation, in the embodiment of the present invention, an annular step is provided on the end of the sleeve facing the locking part, and the annular step protrudes from the outer circumference of the sleeve, and the The annular step is provided with an accommodating groove corresponding to the locking portion to accommodate at least a part of the reset member.

In a second aspect, the present invention also discloses a camera module, including a housing, a lens assembly, and a locking device as described in the first aspect, the lens assembly and the locking device are arranged in the housing, The locking device is arranged corresponding to the lens assembly.

As an optional implementation manner, in the embodiment of the present invention, the lens assembly is provided with a second connection block, and the second connection block protrudes from the lens assembly to correspond to the telescopic part, the The second connecting block is provided with a locking groove, and the locking groove is used for accommodating the telescopic part when the telescopic part is extended.

In a third aspect, the present invention also discloses a mobile terminal, including a terminal body and the camera module as described in the second aspect above, and the camera module is arranged on the terminal body.

Compared with prior art, the beneficial effect of the present invention is:

The embodiment of the present invention provides a locking device, and makes the telescopic part move relative to the sleeve, so that the telescopic part switches between the extended state and the retracted state. When the telescopic part is switched to the extended state, the telescopic part and the lens The components are connected, and the lens component is locked at this position to prevent the lens component from shaking or swinging, thereby improving the reliability of the camera module. When the lens assembly leaves the position, the retractable part is switched to the retracted state and separated from the lens assembly to facilitate the movement of the lens assembly. Utilizing the locking function of the locking device, the telescopic part can be locked to connect or separate from the lens assembly and maintain this state without continuous power supply, and the power mechanism only needs to drive the telescopic part when the two states are switched. In this way, on the premise of realizing the function of locking the position of the lens assembly, the structure of the locking device is simplified and the energy consumption of the locking device is reduced.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

Fig. 1 is a schematic structural diagram of a camera module provided by an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a locking device provided by an embodiment of the present invention;

Fig. 3 is an exploded schematic diagram of the structure of the locking device provided by the embodiment of the present invention;

Fig. 4 is a cross-sectional view along A-A in Fig. 2 of the sleeve provided by the embodiment of the present invention;

Fig. 5 is a schematic structural diagram of the telescopic part provided by the embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a push shaft provided by an embodiment of the present invention;

Fig. 7 is a structural schematic view of the push shaft and the sleeve provided by the present invention in an assembled state;

Fig. 8 is a schematic structural diagram of a lens assembly provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a mobile terminal provided by an embodiment of the present invention.

Icon: 100, locking device; 10, sleeve; 13, bump; 131, first slot; 132, second slot; 133, first guide surface; 134, second guide surface; 136, third 14. Accommodating space; 15. Annular step; 150. Accommodating groove; 20. Telescopic part; 21. First engaging part; 210. Third guide surface; 22. First end; 23. Second 24, shaft; 25, locking part; 30, power mechanism; 31, magnetic part; 32, coil; 33, power part; 34, reset part; 40, push shaft; 41, second engagement part; 410, inclined plane; 42, first connecting block; 420, installation cavity; 200, camera module; 201, housing; 202, lens assembly; 2021, second connecting block; 2021a, locking groove; 300, mobile terminal; 301. The terminal body.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", The orientations or positional relationships indicated by "vertical", "horizontal", "horizontal", and "longitudinal" are based on the orientations or positional relationships shown in the drawings. These terms are mainly used to better describe the present invention and its embodiments, and are not intended to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

Moreover, some of the above terms may be used to indicate other meanings besides orientation or positional relationship, for example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. Those skilled in the art can understand the specific meanings of these terms in the present invention according to specific situations.

Furthermore, the terms "installed", "disposed", "provided", "connected", "connected" are to be interpreted broadly. For example, it may be a fixed connection, a detachable connection, or an integral structure; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediary; internal connectivity. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply that the indicated devices, elements Or the relative importance and number of components. Unless otherwise specified, "plurality" means two or more.

The technical solution of the present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

In a first aspect, this embodiment provides a locking device 100 , as shown in FIG. 1 , the locking device 100 can be applied to a camera module 200 . Referring to FIGS. 1 to 3, the camera module 200 includes a housing 201, a drive mechanism disposed in the housing 201, and a lens assembly 202. The drive mechanism (not shown) is connected to the lens assembly 202, and the drive mechanism is used to drive the lens. The assembly 202 moves, for example, the lens assembly 202 can realize the viewfinding and focusing effects of the camera module 200 through rotation, translation, and the like.

The locking device 100 includes a sleeve 10 , a telescoping portion 20 and a power mechanism 30 . The sleeve 10 is used to connect with the housing 201, and the axial direction of the sleeve 10 includes a first direction (the positive direction of the x-axis as shown in FIG. 2 ) and a second direction opposite to the first direction (as shown in FIG. 2 The opposite direction of the x-axis), the telescopic part 20 can be movably installed on the sleeve 10, and when the lens assembly 202 moves to the corresponding telescopic part 20, the telescopic part 20 moves relative to the sleeve 10 along the first direction to connect with the lens assembly 202 When the telescopic part 20 moves relative to the sleeve 10 along the second direction to separate from the lens assembly 202 , the lens assembly 202 can move so as to be staggered from the telescopic part 20 . The power mechanism 30 is connected to the telescopic part 20 and is used to push the telescopic part 20 so that the telescopic part 20 moves relative to the sleeve 10 along a first direction or a second direction.

That is to say, the telescopic part 20 has two states of extension and retraction, that is, when the telescopic part 20 moves along the first direction and connects with the lens assembly 202, the telescopic part 20 is in the extended state, and the telescopic part 20 moves along the second direction. When moving to separate from the lens assembly 202, the retractable part 20 is in a retracted state. When the lens assembly 202 moves to the corresponding telescopic part 20 under the driving action of the driving mechanism, for example, the lens assembly 202 translates to close to the telescopic part 20, or the lens assembly 202 rotates to a certain position, at this time the power mechanism 30 drives the telescopic part 20 to switch To the extended state, the telescopic part 20 can be connected to the lens assembly 202, and the lens assembly 202 can be locked at this position to prevent the lens assembly 202 from shaking or swinging; when the lens assembly 202 leaves the current position, before this, the telescopic part 20 is switched to the recovery state, so that it is separated from the lens assembly 202, so that the lens assembly 202 can leave (for example, translate or rotate away) the current position, so that the lens assembly 202 does not correspond to the telescopic part 20, so that the lens assembly 202 can be moved easily, Avoid friction between the lens assembly 202 and the telescopic part 20 when moving, thereby improving the service life of the lens assembly 202 .

By setting the sleeve 10 and the telescopic part 20, and making the telescopic part 20 move relative to the sleeve 10, so that the telescopic part 20 is switched between the extended state and the recovery state, when the telescopic part 20 is switched to the extended state, the telescopic part 20 is connected with the lens assembly 202, and locks the lens assembly 202 at this position to prevent the lens assembly 202 from shaking or swinging, thereby improving the reliability of the camera module 200 in use. When the lens assembly 202 leaves the position, the retractable part 20 switches to the recovery state and separates from the lens assembly 202 to facilitate the movement of the lens assembly 202 . In this way, using the locking function of the locking device 100, the telescopic part 20 can be locked to achieve connection or separation with the lens assembly 202 and maintain this state, without continuous power supply to it, and the power mechanism 30 only needs to switch between the two states The telescopic part 20 is driven. In this way, on the premise of realizing the function of locking the position of the lens assembly 202 , the structure of the locking device 100 is simplified and the energy consumption of the locking device 100 is reduced.

Exemplarily, the power mechanism 30 may be a cylinder, a motor or an assembly of coils and magnetic parts, etc., and the telescopic arm of the cylinder or the output shaft of the motor is connected to the telescopic part 20, or both coils or magnetic parts are arranged on the telescopic part 20 One of them is provided at a position other than the telescopic part, so as to realize the movement of the telescopic part 20 along the first direction or the second direction. Wherein, when the sleeve 10 is disposed on the housing 201 , in some examples, the sleeve 10 may be directly disposed on the housing 201 itself, and in other examples may also be indirectly connected to the housing 201 through a connecting bracket or other structures. The housing 201 as shown in FIG. 2 may be a part of the housing 201 itself, and this part protrudes toward the lens assembly 202 so as to facilitate the installation of the sleeve 10 and make the telescopic part 20 correspond to the lens assembly 202 . This embodiment does not limit the specific position of the sleeve 10 in the housing 201 , the sleeve 10 only needs to be spaced apart from the lens assembly 202 , so as to realize the connection and separation of the telescopic part 20 and the lens assembly 202 .

It can be understood that the lens assembly 202 includes a lens barrel and lenses (not shown), and the lenses include lenses, plane mirrors, prisms, etc., to realize the camera function of the camera module.

In some embodiments, please refer to Fig. 4 to Fig. 5, the inner wall of the sleeve 10 is provided with a plurality of protrusions 13, and the plurality of protrusions 13 are distributed at intervals along the circumference of the sleeve 10, and the back power of the plurality of protrusions 13 An accommodating space 14 is formed between one side of the mechanism 30 and the inner wall of the sleeve 10. The accommodating space 14 is used for accommodating the telescopic part 20. A first card slot 131 is formed between two adjacent projections 13. The first card slot 131 The groove 131 communicates with the accommodating space 14, and the side of the protrusion 13 facing away from the power mechanism 30 is provided with a second locking groove 132. Along the axial direction of the sleeve 10, the depth of the first locking groove 131 is greater than that of the second locking groove 132. Depth, the first clamping groove 131 and the second clamping groove 132 are distributed along the circumferential direction of the sleeve 10, the outer periphery of the telescopic part 20 is provided with a first clamping part 21, and the first clamping part 21 can be movably clamped on the first clamping part. slot 131 or the second card slot 132 . The power mechanism 30 pushes the telescopic part 20 to move along the first direction and rotates the telescopic part 20, so that when the telescopic part 20 is connected with the lens assembly 202, the first engaging part 21 rotates to engage with the second locking groove 132, or, When the power mechanism 30 pushes the telescopic part 20 to move along the second direction and rotates the telescopic part 20 to the contracted state, the first engaging part 21 rotates to engage with the first engaging slot 131 .

By setting the first locking groove 131 and the second locking groove 132 with different lengths in the sleeve 10, the first locking part 21 is respectively engaged with the first locking groove 131 and the second locking groove 132, so that, on the one hand, the telescopic The part 20 can have two states, so as to realize the setting of the extended state and the retracted state of the telescopic part 20. That is, one is that when the telescopic part 20 is engaged with the first slot 131, a longer part of the second end 23 of the telescopic part 20 is accommodated in the sleeve 10, and at this time the first end 22 protrudes from the sleeve. The length of the telescopic part 10 is small, so that the telescopic part 20 is separated from the lens assembly 202 to facilitate the movement of the lens assembly 202; another state is that the telescopic part 20 is engaged with the second slot 132, and at this time the first end 22 of the telescopic part 20 Compared with the sleeve 10 , it has a larger extension length and can be connected to the lens assembly 202 to lock the lens assembly 202 .

On the other hand, under the condition of not being driven by the power mechanism 30, the first engaging part 21 can be engaged and kept in the state of the first engaging groove 131 or the second engaging groove 132, and will not actively slip out of the groove , so as to realize the function of locking the telescopic part 20, so that it can be maintained in the extended state or the retracted state.

Optionally, both the protrusion 13 and the sleeve 10 can be integrally formed, or the protrusion 13 can be adhered to the inner wall of the sleeve 10 after the sleeve 10 is formed.

In some embodiments, both the first card slot 131 and the second card slot 132 are plural, the number of the second card slot 132 is the same as the number of the first card slot 131, along the circumferential direction of the sleeve 10, a plurality of first card slots The slots 131 are distributed at intervals, the plurality of second card slots 132 are distributed at intervals, and the plurality of first card slots 131 and the plurality of second card slots 132 are arranged alternately.

By providing a plurality of first locking grooves 131 and second locking grooves 132, the telescopic part 20 can continuously rotate in the sleeve 10 along the circumferential direction of the sleeve 10 (that is, rotate around the x-axis), so that the telescopic part 20 can be extended The output state and the recovery state are alternately switched, thereby simplifying the driving action of the power mechanism 30 on the telescopic part 20 .

In some embodiments, there are multiple first engaging parts 21, and the number of the first engaging parts 21 is the same as the number of the first card slots 131, the plurality of first card slots 131 are distributed at equal intervals, and the plurality of second card slots The grooves 132 are distributed at equal intervals, so that when the telescopic part 20 rotates at any rotation angle relative to the sleeve 10, the plurality of first engaging parts 21 are respectively engaged with the plurality of first engaging grooves 131, or respectively engaged with the plurality of first engaging parts 131. Two card slots 132 .

By arranging a plurality of first engaging parts 21 corresponding to a plurality of first card slots 131, the contact area between the first engaging part 21 and the first card slot 131 (or the second card slot 132) can be increased, and the first card The joint parts 21 are evenly distributed on the outer periphery of the telescopic part 20, so as to improve the stability and balance of the telescopic part 20 when rotating in the sleeve 10.

In some embodiments, the side of the protrusion 13 facing away from the power mechanism 30 includes a first guide surface 133 located in the second card slot 132 and a second guide surface 134 located outside the second card slot 132 , the first guide surface 133 It is inclined along the second direction with the second guide surface 134 to guide the rotation of the first engaging part 21 . The first engaging portion 21 is provided with a third guiding surface 210 corresponding to the first guiding surface 133, and when the push shaft 40 pushes the first engaging portion 21 out of any first engaging groove 131, the third guiding surface 210 and the first guiding surface 133, and rotate under the guidance of the first guide surface 133 and engage with the second locking groove 132, so that the telescopic part 20 moves along the first direction to connect with the lens assembly 202; the push shaft 40 pushes the first engaging part 21 When disengaging from the second locking groove 132, the third guiding surface 210 is connected with the second guiding surface 134, and rotates under the guidance of the second guiding surface 134 and engages with another first locking groove 131, so that the telescopic part 20 Move along the second direction to separate from the lens assembly 202 .

The locking device 100 is further provided with a reset member 34 connected to the telescopic portion 20 and the sleeve 10 , and the reset member 34 is used to provide a restoring force for the telescopic portion 20 along the second direction. By arranging the first guide surface 133, the second guide surface 134 and the third guide surface 210, the third guide surface 210 can be matched with the first guide surface 133 or the second guide surface 134, and at the same time, the reset member 34 can be used as the telescopic part 20. The extrusion force along the second direction is provided. At this time, the surface support force generated by the first guide surface 133 (second guide surface 134) on the third guide surface 210 has a component force along the circumferential direction of the telescopic part 20, which can make the expansion and contraction The part 20 automatically rotates inside the sleeve 10 along the circumferential direction of the sleeve 10 , so as to realize the automatic switching of the first engaging part 21 between the first engaging groove 131 and the second engaging groove 132 .

In some embodiments, please refer to FIG. 6 to FIG. 7 , the locking device 100 further includes a push shaft 40 , the push shaft 40 is at least partly located in the sleeve 10 and connected to the telescopic part 20 , and the power mechanism 30 is connected to the telescopic part 20 through the push shaft 40 . part 20, the push shaft 40 can move along the axial direction of the sleeve 10 under the drive of the power mechanism 30, so that the telescopic part 20 moves along the axial direction of the sleeve 10 and rotates around the axis of the sleeve 10, so that the telescopic part 20 is connected to or detached from the lens assembly 202.

Since the available space in the sleeve 10 is small, and the first engaging part 21 of the telescopic part 20 is engaged in the first engaging groove 131 or the second engaging groove 132, it is difficult for the output end of the power mechanism 30 to extend into the sleeve. 10 and in direct contact with the first engaging part 21, therefore, by setting the push shaft 40, the power mechanism 30 can be connected with the telescopic part 20, and the power mechanism 30 can be made to The power extended to the sleeve 10 is convenient for the power mechanism 30 to transmit the driving force to the telescopic part 20 to realize the driving of the telescopic part 20 .

In some embodiments, one end of the push shaft 40 connected to the telescopic part 20 is provided with a plurality of second engaging parts 41, and the second engaging parts 41 protrude from the outer peripheral surface of the pushing shaft 40, and the second engaging parts 41 are used for It is connected with the first engaging part 21 . The protruding block 13 is also provided with a plurality of third card slots 136, the number of the third card slots 136 is the same as the number of the first card slots 131, and the third card slots 136 are arranged between two adjacent first card slots 131 And parallel to the first card slot 131 , and the third card slot 136 communicates with the second card slot 132 . The number of the second engaging portions 41 is the sum of the numbers of the first engaging slots 131 and the third engaging slots 136 , and the plurality of second engaging portions 41 are slidably engaged with the first engaging slots 131 and the third engaging slots 136 respectively.

Using the second engaging portion 41 can achieve a stable connection between the pushing shaft 40 and the telescoping portion 20 , so that the pushing shaft 40 can provide a driving force along the first direction to the telescoping portion 20 . The number of the second engaging portion 41 is set to be twice that of the first engaging portion 21, so that no matter whether the first engaging portion 21 is in the first engaging groove 131 or the second engaging groove 132, when the pushing shaft 40 moves along the first direction When pushing, there can always be a second engaging portion 41 corresponding to the first engaging portion 21, and the second engaging portion 41 is connected to the first engaging portion 21, thereby pushing the first engaging portion 21 away from the first engaging portion 21. slot 131 or the second card slot 132 . By engaging the second engaging part 41 with the first engaging groove 131 or the third engaging groove 136, it can provide guidance for the movement of the push shaft 40 in the sleeve 10 and prevent the second engaging part 41 from rotating relative to the sleeve 10 , improve the stability of the pushing shaft 40 during the pushing process.

In some embodiments, the second engaging portion 41 has a connecting surface corresponding to the first engaging portion 21, and the connecting surface includes two inclined surfaces 410 connected in sequence at an angle. It is connected with the first engaging part 21 .

By setting the surface of the second engaging part 41 as two slopes 410, thereby reducing the contact area between the second engaging part 41 and the third guide surface 210, so that the first engaging part 21 and the second engaging surface can be reduced. The degree of friction or surface adhesion between the parts 41 is beneficial to improve the reliability of disengagement during the disengagement process of the first engaging part 21 from the first engaging groove 131 or the second engaging groove 132 .

In some embodiments, the end of the push shaft 40 outside the sleeve 10 is provided with a first connection block 42, the first connection block 42 is hollow and forms an installation cavity 420, the power mechanism 30 includes a magnetic part 31 and a coil 32, and the installation cavity 420 is used for accommodating the magnetic component 31 , the coil 32 is disposed on the housing 201 corresponding to the magnetic component 31 , and the coil 32 is spaced apart from the first connection block 42 .

The first connecting block 42 can provide space for the installation of the magnetic element 31 , and facilitate the connection between the push shaft 40 and the power mechanism 30 , so that the push shaft 40 can move under the drive of the power mechanism 30 . The installation cavity 420 can be used to accommodate the magnetic component 31 and prevent the magnetic component 31 from being exposed, thereby improving the reliability of the locking device 100 during operation. By setting the coil 32 and cooperating with the magnetic part 31, the push shaft 40 can be driven by magnetic force, so that the drive can be realized without contact between the push shaft 40 and the power mechanism 30, which facilitates the separate design of the push shaft 40 and the power mechanism 30 and install.

In some embodiments, please refer to FIG. 3 and FIG. 6 , the power mechanism 30 further includes a power component 33 and a reset member 34 , and the telescopic part 20 has a first end 22 for connecting with the lens assembly 202 and an end opposite to the first end 22 . The second end 23, the power component 33 is connected to the second end 23, and is used to provide the driving force along the first direction for the telescopic part 20, the first end 22 is located outside the sleeve 10, and the reset member 34 is connected to the first end 22 and The sleeve 10 and the reset member 34 are used to provide a restoring force along the second direction for the telescopic part 20 so as to separate the telescopic part 20 from the lens assembly 202 .

That is to say, when the telescopic part 20 stretches out along the first direction and is connected with the lens assembly 202, the reset member 34 is in a stretched state. At this time, the reset member 34 has the potential energy to restore along the second direction. When the power component 33 moves along the first direction When the push shaft 40 is driven again in one direction, the push shaft 40 presses the telescopic part 20 along the first direction, and makes the first engaging part 21 disengage from the second slot 132. The pulling force in the direction makes the telescopic part 20 move along the second direction, and the first engaging part 21 slides into the first locking groove 131 under the cooperation of the third guide surface 210 and the second guide surface 134, so that the telescopic part 20 and the lens Component 202 is detached.

Through the power part 33 and the reset part 34, the driving force in the first direction and the restoring force in the second direction can be respectively realized for the telescopic part 20. Specifically, the power part 33 includes the magnetic part 31 and the coil 32. In this way, the power part 33 only needs to drive the telescopic part 20 along one direction (i.e. the first direction). For the power part 33, there is no need to consider the problem of driving along the second direction. Instead, it cooperates with the reset function of the reset member 34 to realize the expansion and contraction of the telescopic part 20. movement in one direction. In this way, the arrangement of the power mechanism 30 can be simplified, so that the overall structure of the locking device 100 is more compact and simple.

Exemplarily, the reset member 34 may be a spring, a shrapnel or other structures.

The action process of locking device 100 is as follows:

When the lens assembly 202 moves to correspond to the telescopic part 20, the coil 32 of the power mechanism 30 is energized and acts with the magnetic part 31 to make the pushing shaft 40 move along the first direction. At this time, the first engaging part 21 is located at In the first locking groove 131 , the slope of the second engaging portion 41 located in the first engaging groove 131 is in contact with the first engaging portion 21 , and the first engaging portion 21 is pushed away from the second engaging portion 41 by the second engaging portion 41 . A card slot 131, the first engaging part 21 rotates under the guidance of the third guide surface 210 and the first guide surface 133, so that the first engaging part 21 corresponds to the second card slot 132 and slides into the second slot 132, and since the first guide surface 133 and the second guide surface 134 are discontinuous, the first engaging portion 21 can be locked in the second slot 132, and at this time, the telescopic portion 20 moves along the first direction relative to the sleeve 10 Move, and switch to the extended state, the first end 22 located at the telescopic part 20 is connected to the lens assembly 202, so that the lens assembly 202 remains at the current position;

When the lens assembly 202 needs to leave the current position, the coil 32 is energized again and acts with the magnetic member 31 to generate a force, and the pushing shaft 40 moves along the first direction again and pushes the telescopic part 20. At this time, it is located in the third slot 136 The second engaging portion 41 is in contact with the first engaging portion 21, the first engaging portion 21 is pushed out of the second engaging groove 132 under the push of the second engaging portion 41, and the first engaging portion 21 is guided by the third guide The surface 210 and the second guide surface 134 slide into the first slot 131 and rotate, so that the first engaging portion 21 corresponds to the first slot 131, and the telescopic portion 20 moves in the second direction under the action of the reset member 34. Move, so that the first locking part 21 slides into the first locking slot 131 and is locked in the first locking slot 131 . At this moment, the telescoping part 20 moves relative to the sleeve 10 along the second direction, and switches to the recovered state, and the first end 22 of the telescoping part 20 is separated from the lens assembly 202, so that the lens assembly 202 can leave from the current position.

During the process of switching the telescopic part 20 from the second locking slot 132 to the first locking slot 131, the telescopic part 20 needs to move a certain distance along the first direction first, so that the first engaging part 21 comes out of the second locking slot 132 The above-mentioned moving distance along the first direction is the floating distance required for the extension state switching process of the telescopic part 20. When the telescopic part 20 is connected to the lens assembly 202, a certain avoidance space can be provided between the two, The escape space can avoid the required floating distance of the telescopic part 20 when the state is switched, so as to realize the free switching between the extended state and the retracted state of the telescopic part 20 . Exemplarily, a locking groove can be provided on the lens assembly 202 for connection with the telescopic part 20, and the telescopic part 20 can protrude into the locking groove, and a certain avoidance space is reserved in the locking to accommodate the floating distance. Telescopic part 20.

In some embodiments, the telescoping part 20 includes a shaft 24 and a locking part 25 connected in sequence, the shaft 24 is movably mounted on the sleeve 10, and one end of the shaft 24 is connected to the power mechanism 30, and the locking part 25 is disposed on At the other end of the shaft 24 , a locking portion 25 protrudes from the outer circumference of the shaft 24 and is located outside the sleeve 10 , the locking portion 24 is used to connect or separate from the lens assembly 202 .

By providing the locking part 25, and making the outer circumference of the locking part 25 protrude from the outer circumference of the shaft rod 24, on the one hand, the contact area between the telescopic part 20 and the lens assembly 202 can be increased, and the position of the locking device 100 to the lens assembly 202 can be improved. Locking stability.

In some embodiments, the reset member 34 is sheathed on the outer periphery of the shaft 24 and connected between the locking portion 25 and the sleeve 10 , and the reset member 34 is used to provide the retractable portion 20 with a restoring force along the second direction.

A step can be formed between the locking part 25 and the shaft rod 24. On the one hand, a certain space can be provided for the reset part 34 to be arranged on the telescopic part 20, so as to prevent the reset part 34 from detaching from the telescopic part 20 and improve the contact between the reset part 34 and the telescopic part. 20 connection stability. On the other hand, the shaft 24 can provide a guiding function for the stretching or shrinking of the reset member 34, thereby improving the stability of the reset member 34 during movement.

In some embodiments, the end of the sleeve 10 facing the locking portion 25 is provided with an annular step 15, the annular step 15 protrudes from the outer circumference of the sleeve 10, and the annular step 15 is provided with an accommodating groove 150 corresponding to the locking portion 25, so as to At least a part of the reset member 34 is accommodated.

It can be understood that the cross-sectional shape of the accommodating groove 150 can be set in a form in which the bottom width of the groove is greater than the width of the notch, such as trapezoidal, circular arc, etc., so as to accommodate the reset member 34 . Taking the reset member 34 as an example of a spring, the spring can be engaged in the accommodating groove 150 to avoid separation from the sleeve 10 during the stretching and contracting of the spring. In this way, by providing the accommodating groove 150 , a part of the reset member 34 can be clamped in the accommodating groove 150 , thereby improving the stability and reliability of setting the reset member 34 .

Correspondingly, a groove (not shown) similar to the accommodating groove 150 may also be provided on the surface of the locking portion 25 facing the sleeve 10 to facilitate accommodating the other end of the spring. The groove can not only be used to engage the spring to prevent the spring from coming out of the telescopic part 20 during stretching or shrinking, but also provide a certain space for the telescopic part 20 to rotate relative to the spring along the axial direction of the sleeve. In order to realize the movement effect of the telescopic part 20 .

In the second aspect, please refer to FIG. 1 and FIG. 8. The present invention also provides a camera module 200, including a housing 201, a lens assembly 202, and the locking device 100 as described in the first aspect, the lens assembly 202 and the locking device. The device 100 is disposed in the casing 201 , and the locking device 100 is disposed corresponding to the lens assembly 202 .

In some embodiments, the lens assembly 202 is provided with a second connecting block 2021, the second connecting block 2021 protrudes from the lens assembly 202 and corresponds to the telescopic part 20, the second connecting block 2021 is provided with a locking groove 2021a, and the locking groove 2021a It is used for accommodating the telescopic part 20 when the telescopic part 20 is extended.

By arranging the second connection block 2021 protruding from the lens assembly 202, under the premise of avoiding collision or interference between the lens assembly 202 and the locking device 100, it is convenient for the telescopic part 20 to correspond to the lens assembly 202, thereby shortening the telescopic part. 20 needs to extend out when the lens assembly 202 is locked, so that the overall structure of the locking device 100 is more compact. With the locking groove 2021a, when the telescopic part 20 extends out to connect with the lens assembly 202, the telescopic part 20 can be engaged in the locking groove 2021a, thereby improving the stability of the engagement of the telescopic part 20 and the lens assembly 202.

In the third aspect, please refer to FIG. 9 , the present invention also provides a mobile terminal 300 , including a terminal body 301 and the aforementioned camera module 200 in the second aspect. The camera module 200 is disposed on the terminal body 301 .

The locking device, the camera module and the mobile terminal disclosed in the embodiments of the present invention have been described above in detail. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The descriptions of the above embodiments are only used to help understanding The locking device, the camera module and the mobile terminal of the present invention and their core ideas; at the same time, for those of ordinary skill in the art, according to the ideas of the present invention, there will be changes in the specific implementation and application range. Above all, the contents of this specification should not be construed as limiting the present invention.

Claims (16)

1. The utility model provides a locking device, its characterized in that, locking device is applied to the module of making a video recording, the module of making a video recording include the casing and set up in actuating mechanism, the lens subassembly in the casing, actuating mechanism with the lens subassembly is connected, actuating mechanism is used for driving the lens subassembly moves, locking device includes:

a sleeve for connection with the housing, an axial direction of the sleeve including a first direction and a second direction opposite the first direction;

The telescopic part is movably arranged on the sleeve in a penetrating mode, when the lens assembly moves to be arranged corresponding to the telescopic part, the telescopic part moves to be connected with the lens assembly along the first direction relative to the sleeve, and when the telescopic part moves to be separated from the lens assembly along the second direction relative to the sleeve, the lens assembly can move to be staggered with the telescopic part;

and the power mechanism is connected with the telescopic part and used for pushing the telescopic part so as to enable the telescopic part to move relative to the sleeve in the first direction or the second direction.

2. The locking device according to claim 1, wherein a plurality of protruding blocks are arranged on the inner wall of the sleeve, the protruding blocks are distributed at intervals along the circumferential direction of the sleeve, a containing space is formed between one surface of each protruding block, which faces away from the power mechanism, and the inner wall of the sleeve, the containing space is used for containing the telescopic part, a first clamping groove is formed between two adjacent protruding blocks, the first clamping groove is communicated with the containing space, a second clamping groove is formed on one surface of each protruding block, which faces away from the power mechanism, along the axial direction of the sleeve, the depth of each first clamping groove is greater than that of each second clamping groove, the first clamping groove and each second clamping groove are distributed along the circumferential direction of the sleeve, and a first clamping part is arranged on the periphery of the telescopic part and can be movably clamped in the first clamping groove or the second clamping groove;

The power mechanism pushes the telescopic part to move along the first direction and enable the telescopic part to rotate, so that when the telescopic part is connected with the lens assembly, the first clamping part rotates to be clamped with the second clamping groove, or the power mechanism pushes the telescopic part to move along the second direction and enable the telescopic part to rotate to be clamped with the first clamping groove when the telescopic part rotates to be in the contracted state.

3. The locking device according to claim 2, wherein the number of the first clamping grooves and the number of the second clamping grooves are the same as the number of the first clamping grooves, the first clamping grooves are distributed at intervals, the second clamping grooves are distributed at intervals, and the first clamping grooves and the second clamping grooves are alternately arranged.

4. The locking device according to claim 3, wherein the number of the first engaging portions is equal to the number of the first engaging grooves, the plurality of the first engaging grooves are equally spaced apart, and the plurality of the second engaging grooves are equally spaced apart, so that when the telescopic portion rotates at any rotation angle relative to the sleeve, the plurality of the first engaging portions are respectively engaged with the plurality of the first engaging grooves, or are respectively engaged with the plurality of the second engaging grooves.

5. The locking device of claim 3, wherein a face of the tab facing away from the power mechanism includes a first guide surface located in the second slot and a second guide surface located outside the second slot, the first guide surface and the second guide surface being inclined in the second direction to guide the first engagement portion to rotate;

the first clamping part is provided with a third guide surface corresponding to the first guide surface, and when the pushing shaft pushes the first clamping part to be separated from any first clamping groove, the third guide surface is connected with the first guide surface, rotates under the guidance of the first guide surface and is clamped on the step, so that the telescopic part moves along the first direction to be connected with the lens assembly; when the pushing shaft pushes the first clamping part to separate from the step, the third guide surface is connected with the second guide surface, and rotates and is clamped in the other first clamping groove under the guidance of the second guide surface, so that the telescopic part moves along the second direction to be separated from the lens assembly.

6. A locking device as claimed in claim 3, further comprising a push shaft at least partially disposed within the sleeve and connected to the telescopic portion, the power structure being connected to the telescopic portion by the push shaft, the push shaft being capable of moving in an axial direction of the sleeve under the driving action of the power mechanism to move the telescopic portion in the axial direction of the sleeve and rotate about an axis of the sleeve to connect or disconnect the telescopic portion to or from the lens assembly.

7. The locking device according to claim 6, wherein one end of the pushing shaft connected to the telescopic portion is provided with a plurality of second engaging portions protruding from an outer peripheral surface of the pushing shaft, the second engaging portions being configured to be connected to the first engaging portions;

the protruding blocks are further provided with a plurality of third clamping grooves, the number of the third clamping grooves is the same as that of the first clamping grooves, the third clamping grooves are arranged between two adjacent first clamping grooves and parallel to the first clamping grooves, and the third clamping grooves are communicated with the second clamping grooves;

the number of the second clamping parts is the sum of the number of the first clamping grooves and the number of the third clamping grooves, and the second clamping parts are respectively and slidably clamped in the first clamping grooves and the third clamping grooves.

8. The locking device according to claim 7, wherein the second engaging portion has a connection surface corresponding to the first engaging portion, the connection surface includes two inclined surfaces connected in sequence at an angle, and a connection position of the two inclined surfaces forms a protruding ridge for connection with the first engaging portion.

9. The locking device of claim 6, wherein a first connecting block is arranged at one end of the pushing shaft, which is positioned outside the sleeve, the first connecting block is arranged in a hollow manner and forms an installation cavity, the power mechanism comprises a magnetic part and a coil, the installation cavity is used for accommodating the magnetic part, the coil is arranged in the shell corresponding to the magnetic part, and the coil is arranged at intervals with the first connecting block.

10. The lock-out mechanism of any one of claims 1-9, wherein the power mechanism further comprises a power member and a restoring member, the telescoping portion having a first end for connection with the lens assembly and a second end opposite the first end, the power member being connected to the second end for providing a driving force to the telescoping portion in the first direction, the first end being located outside the sleeve, the restoring member being connected to the first end and the sleeve, the restoring member being for providing a restoring force to the telescoping portion in the second direction to separate the telescoping portion from the lens assembly.

11. The locking device according to any one of claims 1 to 9, wherein the telescopic portion comprises a shaft rod and a locking portion which are sequentially connected, the shaft rod movably penetrates through the sleeve, one end of the shaft rod is connected with the power mechanism, the locking portion is arranged at the other end of the shaft rod, the locking portion protrudes out of the periphery of the shaft rod and is located outside the sleeve, and the locking portion is used for being connected with or separated from the lens assembly.

12. The locking device of claim 11, wherein the power mechanism comprises a power member connected to one end of the shaft for providing a driving force in the first direction to the telescopic portion, and a restoring member sleeved on an outer circumference of the shaft and connected between the locking portion and the sleeve for providing a restoring force in the second direction to the telescopic portion to separate the telescopic portion from the lens assembly.

13. The locking device according to claim 11, wherein an end of the sleeve facing the locking portion is provided with an annular step protruding from an outer periphery of the sleeve, and the annular step is provided with a receiving groove corresponding to the locking portion to receive at least a portion of the reset member.

14. An imaging module comprising a housing, a lens assembly, and a locking device according to any one of claims 1-13, wherein the lens assembly and the locking device are disposed in the housing, and the locking device is disposed corresponding to the lens assembly.

15. The locking device according to claim 14, wherein the lens assembly is provided with a second connection block protruding from the lens assembly to correspond to the telescopic portion, the second connection block being provided with a locking groove for accommodating the telescopic portion when the telescopic portion is extended.

16. A mobile terminal, comprising a terminal body and the camera module of claim 14, wherein the camera module is disposed on the terminal body.

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