CN115474378A

CN115474378A - Locking mechanism, shell assembly and electronic equipment

Info

Publication number: CN115474378A
Application number: CN202211220272.3A
Authority: CN
Inventors: 马强
Original assignee: Realme Mobile Telecommunications Shenzhen Co Ltd
Current assignee: Realme Mobile Telecommunications Shenzhen Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-12-13

Abstract

The application provides a locking mechanism, a shell assembly and an electronic device. The locking mechanism comprises a fixing component, a locking component and a memory alloy piece. The fixing assembly is used for fixing to the first shell. The locking assembly is slidably arranged on the fixing assembly and used for locking the second shell or separating from the second shell. The memory alloy piece can contract and extend by supplying power to change the length of the memory alloy piece, the memory alloy piece comprises a first end and a second end which are arranged in a back-to-back mode, and at least one winding end arranged between the first end and the second end, the first end is connected with the locking assembly, the second end is used for being fixed to the first shell, and the winding end is used for being wound to the winding portion of the first shell to change the extending direction of the memory alloy piece. The locking function can be realized, the effective length of the memory alloy piece can be increased, the slidable distance of the locking piece is increased, the difficulty of locking and unlocking the locking piece and the second shell is reduced, and the service life of the memory alloy piece is prolonged.

Description

Locking mechanism, shell assembly and electronic equipment

Technical Field

The application belongs to the technical field of locking mechanisms, and particularly relates to a locking mechanism, a shell assembly and electronic equipment.

Background

With the demand of users for display areas of display screens of electronic devices, new forms of electronic devices, i.e., roll-to-roll type electronic devices, folding type electronic devices, etc., have been introduced. Taking a roll-type electronic device as an example, the electronic device generally includes a first housing and a second housing, wherein the second housing can slide relative to the first housing to pull out the flexible screen to increase the display area or retract the flexible screen to decrease the display area. But the current slide-rolling type electronic equipment cannot realize the locking function.

Disclosure of Invention

In view of this, a first aspect of the present application provides a locking mechanism applied to a housing assembly including a first housing and a second housing, the second housing being slidable relative to the first housing, the locking mechanism including:

a securing assembly for securing to the first housing;

the locking component is arranged on the fixing component in a sliding mode and used for locking the second shell or being separated from the second shell; and

the memory alloy piece can contract and extend by supplying power to change the length of the memory alloy piece, the memory alloy piece comprises a first end and a second end which are arranged oppositely, and at least one winding end arranged between the first end and the second end, the first end is connected with the locking assembly, the second end is used for being fixed to the first shell, and the winding end is used for being wound on the winding part of the first shell to change the extending direction of the memory alloy piece;

the length of the memory alloy piece can be reduced by electrifying to contract, so that the locking assembly is driven to slide along the direction close to the winding part, and the locking assembly is separated from the second shell; the memory alloy piece can also drive the locking component to slide along the direction far away from the winding part by extending the length after power failure, so that the locking component locks the second shell.

The locking mechanism provided by the first aspect of the present application can achieve the locking function through the mutual cooperation of the fixing component, the locking component and the memory alloy component. Specifically, the fixing assembly may be fixedly disposed on the first housing, and when the second housing slides to a position to be locked relative to the first housing, the memory alloy member may be correspondingly controlled to contract or extend through powering on or powering off, and the length of the memory alloy member is adjusted to drive the locking assembly to slide relative to the fixing assembly to connect the locking assembly with the second housing, so as to lock the second housing and achieve the positioning and locking functions.

In addition, the connection mode of the memory alloy piece can be changed. Specifically, the memory alloy part comprises two opposite ends: a first end and a second end. The first end can be connected with the locking component, and the second end can be fixedly arranged on the first shell, so that the movement of the locking component is controlled by the memory alloy piece. And the memory alloy member includes at least one wrapped end disposed between the first end and the second end in addition to the first end and the second end. The winding end is mainly used for winding on the winding part of the first shell so as to change the extending direction of the memory alloy piece, so that the originally straight memory alloy piece is bent at the winding end, for example, the originally I-shaped memory alloy piece is changed into a U shape. Therefore, the length of the memory alloy piece can be increased in the same space, so that the effective length of the memory alloy piece is increased, the slidable distance of the locking assembly is increased, and the difficulty in locking and unlocking the locking assembly and the second shell is reduced.

In conclusion, the locking mechanism provided by the application can realize the locking function, can also increase the effective length of the memory alloy piece, increases the slidable distance of the locking assembly, reduces the difficulty of locking and unlocking the locking assembly and the second shell, and prolongs the service life of the memory alloy piece.

A second aspect of the present application provides a housing assembly comprising a first housing, a second housing, and a locking mechanism as provided in the first aspect of the present application, the first housing being slidably connected to the second housing, a fixing component of the locking mechanism being fixed to the first housing, a winding end of the memory alloy member in the locking mechanism being wound around a winding portion of the first housing, the second end being fixed to the first housing; the locking component of the locking mechanism is provided with a first locking part, and the second shell is provided with at least one second locking part;

the shell assembly has a sliding state when the locking assembly slides relative to the fixing assembly, and when the shell assembly is in the sliding state, the shell assembly has a locking state when the first locking portion is connected with the second locking portion, and an unlocking state when the first locking portion is separated from the second locking portion.

The housing assembly provided by the second aspect of the present application, by adopting the locking mechanism provided by the first aspect of the present application, not only can a locking function be realized, but also the first housing and the second housing can be fixed to the second housing when the first housing and the second housing need to be locked. In addition, the effective length of the memory alloy part can be increased, the slidable distance of the locking assembly is increased, the difficulty in locking and unlocking the locking assembly and the second shell is reduced, and the service life of the memory alloy part is prolonged.

A third aspect of the present application provides an electronic device, which includes a processor, a power supply module, and a housing assembly as provided in the second aspect of the present application, wherein the processor is electrically connected to the power supply module, the power supply module is electrically connected to a memory alloy member in the housing assembly, and the processor is configured to control the power supply module to energize or de-energize the memory alloy member, so as to cause the memory alloy member to contract or elongate;

when the memory alloy piece is electrified, the memory alloy piece contracts so as to separate the first locking part from the second locking part; when the power of the memory alloy piece is cut off, the memory alloy piece stretches, so that the first locking part is connected with the second locking part.

In the electronic device provided by the third aspect of the present application, by using the housing assembly provided by the second aspect of the present application, not only can the locking function be realized, but also the first housing and the second housing can be fixed to the second housing when the first housing and the second housing need to be locked. In addition, the effective length of the memory alloy piece can be increased, the slidable distance of the locking assembly is increased, the difficulty in locking and unlocking the locking assembly and the second shell is reduced, and the service life of the memory alloy piece is prolonged.

Drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be described below.

Fig. 1 is a schematic perspective view of a locking mechanism according to an embodiment of the present application.

Fig. 2 is an exploded view of the locking mechanism shown in fig. 1.

Fig. 3 is a schematic perspective view of a first housing, a second housing, and a locking mechanism according to an embodiment of the present disclosure.

Fig. 4 is a schematic perspective view of the first housing, the second housing, and the locking mechanism shown in fig. 3 from another perspective.

Fig. 5 is an exploded view of the first housing, the second housing, and the locking mechanism in an embodiment of the present application.

Fig. 6 is an exploded view of the first housing, the second housing, and the locking mechanism shown in fig. 5 from another perspective.

Fig. 7 is a schematic diagram of the first housing and the locking mechanism according to an embodiment of the present disclosure.

Fig. 8 is a partial schematic view of the first housing and locking mechanism shown in fig. 7.

FIG. 9 is a perspective view of a memory alloy member according to an embodiment of the present disclosure.

FIG. 10 is a top view of a memory alloy article according to an embodiment of the present application.

FIG. 11 is a top view of another embodiment of a memory alloy article according to the present application.

FIG. 12 is a top view of a locking mechanism according to an embodiment of the present application.

FIG. 13 is an exploded view of a locking member, a connecting member, and a memory alloy member according to an embodiment of the present disclosure.

Fig. 14 is a perspective view of a locking mechanism according to another embodiment of the present application.

Fig. 15 is an exploded view of the locking mechanism shown in fig. 14.

FIG. 16 is a schematic perspective view of the memory alloy member shown in FIG. 14 when the locking mechanism is in a locked state.

Fig. 17 is a perspective view of a locking mechanism according to another embodiment of the present application.

Fig. 18 is an exploded view of the locking mechanism shown in fig. 17.

Fig. 19 is an exploded view of a third fixing element according to an embodiment of the present disclosure.

Fig. 20 is an exploded view of a third fixing element, a first connecting element and a second connecting element according to an embodiment of the disclosure.

FIG. 21 is a schematic view of a third fixing element, a first connecting element, a memory alloy element, a first mounting element, and a first elastic element according to an embodiment of the present disclosure.

FIG. 22 is a schematic view of the first connecting member, the memory alloy member, the first mounting member and the first resilient member shown in FIG. 21.

Fig. 23 is a perspective view of the first mounting member shown in fig. 21.

Fig. 24 is an exploded view of a coupling assembly according to an embodiment of the present application.

Fig. 25 is an exploded view of another embodiment connection assembly of the present application.

Fig. 26 is an exploded view of a connection assembly according to yet another embodiment of the present application.

FIG. 27 is a schematic view of the locking member, the third fixing member, the second mounting member, and the second connecting member according to an embodiment of the present disclosure.

FIG. 28 is a view of the locking member, second mounting member, and second connecting member of FIG. 27 in combination.

FIG. 29 is an exploded view of the locking member, the third fixing member, the second mounting member and the second connecting member of FIG. 27.

FIG. 30 is a schematic view of a locking member engaged with a first fixing member according to an embodiment of the present application.

Fig. 31 is an exploded view of the locking member and the first fixing member shown in fig. 30.

FIG. 32 is an exploded view of a locking member, a first fixing member, and a second elastic member according to an embodiment of the present disclosure.

FIG. 33 is a cross-sectional view of the locking member, the first fixing member, and the second elastic member of FIG. 32 according to one embodiment of the present application.

FIG. 34 is a cross-sectional view of a locking member, a first fixing member, and a second elastic member according to another embodiment of the present application.

FIG. 35 is a cross-sectional view of a locking mechanism including two first securing members, two locking members, and two memory alloy members according to an embodiment of the present application.

Fig. 36 is a schematic view of the second housing and the locking mechanism in fig. 4 when locked.

Fig. 37 is an exploded partial schematic view of the second housing and locking mechanism of fig. 36.

FIG. 38 is a partial schematic view of a first housing in accordance with an embodiment of the present application.

Fig. 39 is a partial schematic view of a first housing according to an embodiment of the present application.

Fig. 40 is a schematic perspective view of an electronic device according to an embodiment of the present application.

Fig. 41 is a partially exploded view of the electronic device shown in fig. 40.

Description of the reference symbols:

a locking mechanism-1, a housing component-2, an electronic device-3, a fixing component-10, a first fixing component-11, a first through hole-110, a sliding space-111, a stop portion-112, a third fixing component-12, a first fixing portion-12 a, a second fixing portion-12 b, a second through hole-120, a first plate-121, a second plate-122, a first sliding slot-1221, a second sliding slot-1222, a third plate-123, a fourth plate-124, a fifth plate-125, an accommodating space-126, a third through hole-127, a fourth through hole-128, a second fixing component-13, an accommodating hole-130, a sixth through hole-131, a clamping component-14, a locking component-20, a locking component-21, an eighth through hole-213, a bolt-210, a fourth connecting part-211, a first locking part-212, a second elastic part-22, a connecting component-30, a connecting groove-300, a first connecting piece-31, a first surface-310, a first buckling part-311, a first slide block-3111, a second connecting piece-32, a second surface-320, a second buckling part-321, a second slide block-3211, a first mounting piece-33, a first connecting part-331, a first accommodating groove-0, a second connecting part-332, a third connecting part-333, a first elastic part-34, a bonding piece-35, a second mounting piece-36, a second accommodating groove-360, a fifth through hole-361, a pin-362, a memory alloy piece-40 and a first end-331401, the device comprises a second end-402, a winding end-403, a first part-404, a second part-405, a third part-406, a seventh through hole-407, a connecting surface-408, a limiting block-410, a limiting hole-411, a first shell-51, a winding part-510, a limiting groove-511, a bearing part-512, a limiting part-513, a second shell-52, a second locking part-520, a positioning strip-521, a positioning groove-522, a stop-523, a locking groove-524, a flexible screen-60 and a stroke detection device-70.

Detailed Description

The following is a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications are also considered as the protection scope of the present application.

Before the technical solutions of the present application are introduced, the technical problems in the related art will be described in detail.

With the demand of users and markets for display areas of display screens of electronic devices such as mobile phone terminals and the like, the smart phone industry is coming to experience revolution brought by morphological innovation. For example, the display screen of a mobile phone product is developed from an initial hard screen to a flexible screen, from a small screen to a large screen, from a static mechanism to a motion mechanism, and recently, various large mobile phone manufacturers are developing a folding screen, a scroll screen, a sliding and rolling screen, and the like. The development of the display screen form also brings new problems to the mobile phone structural member for installing the display screen.

For example, a sliding-rolling type electronic device, the display screen of the electronic device can be stretched and shrunk, so as to change the display area of the display screen. The electronic device generally includes a first housing and a second housing, wherein the second housing can slide relative to the first housing in various ways to achieve the unfolding and the folding. The first housing can therefore be understood as a fixed center frame and the second housing as a movable center frame. The flexible screen on one side of the first shell is fixed and immovable, and the flexible screen on one side of the second shell extends to the end part of the second shell and then winds into the second shell, so that the flexible screen is positioned on the inner side and the outer side of the second shell but is not fixed. When the second shell slides, the flexible screen can realize the change of the display area along with the sliding of the second shell, thereby changing the size and the display area of the electronic equipment.

However, the second housing can slide freely relative to the first housing, and cannot be locked at a position where positioning is required, that is, a locking function cannot be realized, resulting in poor positioning effect. And electronic equipment because two casings draw close each other fast under the effect of external force in falling the scene, easily harm flexible or electronic equipment's internal mechanism.

In view of the above, in order to solve the above problems, the present application provides a lock mechanism. Referring to fig. 1 to 8 together, fig. 1 is a schematic perspective view of a locking mechanism according to an embodiment of the present application. Fig. 2 is an exploded view of the locking mechanism shown in fig. 1. Fig. 3 is a schematic perspective view of a first housing, a second housing, and a locking mechanism according to an embodiment of the present disclosure. Fig. 4 is a schematic perspective view of the first housing, the second housing, and the locking mechanism shown in fig. 3 from another perspective. Fig. 5 is an exploded view of the first housing, the second housing, and the locking mechanism in an embodiment of the present application. Fig. 6 is an exploded view of the first housing, the second housing, and the locking mechanism shown in fig. 5 from another perspective. Fig. 7 is a schematic view of the first housing and the locking mechanism according to an embodiment of the present application. Fig. 8 is a partial schematic view of the first housing and locking mechanism shown in fig. 7.

The present embodiment provides a locking mechanism 1, which is applied to a housing assembly 2, wherein the housing assembly 2 includes a first housing 51 and a second housing 52, the second housing 52 can slide relative to the first housing 51, and the locking mechanism 1 includes a fixing assembly 10, a locking assembly 20, and a memory alloy member 40. Wherein the fixing assembly 10 is adapted to be fixed to the first housing 51. The locking assembly 20 is slidably disposed on the fixing assembly 10, and the locking assembly 20 is used for locking the second housing 52 or separating from the second housing 52. The memory alloy member 40 can contract and extend by supplying power to change the length of the memory alloy member 40, the memory alloy member 40 includes a first end 401 and a second end 402 opposite to each other, and at least one winding end 403 disposed between the first end 401 and the second end 402, the first end 401 is connected to the locking assembly 20, the second end 402 is used for being fixed to the first housing 51, and the winding end 403 is used for being wound around the winding portion 510 of the first housing 51 to change the extending direction of the memory alloy member 40.

The length of the memory alloy member 40 can be reduced by being contracted when the power is supplied, so that the locking assembly 20 is driven to slide in a direction close to the winding portion 510, and the locking assembly 20 is separated from the second housing 52; the memory alloy member 40 can also be extended to an original length to drive the locking assembly 20 to slide in a direction away from the winding portion 510, so that the locking assembly 20 locks the second housing 52.

The lock mechanism 1 according to the present embodiment mainly realizes functions such as locking, positioning, and restricting, and the lock mechanism 1 can be applied to various fields, for example, the field of electronic devices 3 and the like, the field of vehicles, the field of machines, and the like. The present embodiment is only schematically described in the field of application of the lock mechanism 1 to the electronic device 3, and the application of the lock mechanism 1 to other fields shall also belong to the scope of protection of the present application.

The electronic device 3 provided in the present embodiment includes, but is not limited to, a mobile terminal such as a mobile phone, a tablet Computer, a notebook Computer, a palmtop Computer, a Personal Computer (PC), a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, and a pedometer, and a fixed terminal such as a Digital TV and a desktop Computer. The present embodiment is not limited to the type of the electronic device 3, and the present embodiment is schematically described only with the electronic device 3 being a roll-type cellular phone. A slider-type cellular phone generally includes a first housing 51 and a second housing 52, wherein the second housing 52 can be slid relative to the first housing 51 for deployment and retraction by various means (e.g., motor-driven, manually pulled by a user, etc.).

The locking mechanism 1 provided in the present embodiment includes the fixing element 10, the locking element 20, and the memory alloy element 40, but this does not mean that the locking mechanism 1 only includes three components, namely, the fixing element 10, the locking element 20, and the memory alloy element 40, and the present embodiment can solve the above mentioned technical problems only by using three components, namely, the fixing element 10, the locking element 20, and the memory alloy element 40. Of course in other embodiments the locking mechanism 1 may also comprise other components. The fixing member 10, the locking member 20, and the memory alloy member 40 will be described in detail in the following embodiments.

The fixing component 10 mainly plays roles of fixing, mounting and supporting, and is used for positioning and mounting the locking mechanism 1. The fixing assembly 10 includes a first fixing member 11, wherein the first fixing member 11 can be fixed on the first housing 51 to integrally mount the locking assembly on the first housing 51, i.e. mount the locking assembly on the centering frame. And the first fixing member 11 may also be used to install the locking assembly 20. The shape, structure, material and other parameters of the first fixing element 11 are not limited in this embodiment, as long as the first fixing element can be fixed on the first housing 51 and provide a basis for the subsequent assembly of the locking assembly 20. Of course, in other embodiments, the fixing assembly 10 may include other components besides the first fixing member 11, and the present application will be described in detail later.

The following description of the related structure and motion process can be directly applied to the first fixing member 11, and the related description can be applied to the fixing assembly 10. In addition, the fixing assembly 10 may include other components in addition to the first fixing member 11, which will be described in detail later.

Alternatively, the first fixing member 11 and the first housing 51 may be provided with a first through hole 110, and then the first fixing member 11 and the first housing 51 may be fixed together by screws.

Alternatively, the first fixing member 11 and the first housing 51 may be an integral structure or a split structure.

The locking assembly 20 primarily functions as a lock to achieve a positioning effect on the second housing 52. The locking assembly 20 includes a locking member 21, and the locking member 21 is slidably connected to the first fixing member 11, that is, the locking member 21 can slide relative to the first fixing member 11. When the second housing 52 slides to a position to be locked relative to the first housing 51, the locking member 21 can slide relative to the first fixing member 11, connect to and lock onto the second housing 52, so as to achieve the functions of positioning and limiting the second housing 52, and the second housing 52 can not slide relative to the first housing 51 any more and is in a locked state. Wherein the sliding direction of the second housing 52 relative to the first housing 51 can be referred to as D1 direction in fig. 3-4. If the second housing 52 is to slide continuously, the locking member 21 needs to slide reversely with respect to the first fixing member 11, so that the locking member 21 is separated from the first fixing member 11 and is in an unlocked state. The locking member 21 may also be referred to as a bolt. The present embodiment does not limit the shape, structure, material, and other parameters of the locking member 21, and the locking member 21 may be slidably connected to the first fixing member 11.

The following description of the related structure and motion process can be directly applied to the locking member 21, and the related description can also be applied to the locking assembly 20. In addition, the locking assembly 20 may include other components besides the locking member 21, which will be described in detail later.

Alternatively, the sliding direction of the second housing 52 relative to the first housing 51 (as shown in the direction D1 in fig. 3-4) is perpendicular to the sliding direction of the locking member 21 relative to the first fixing member 11 (as shown in the direction D2 in fig. 4).

The Memory Alloy member 40 is a member that changes dimensions with temperature, and may also be referred to as a Shape Memory Alloy (SMA). For example, the memory alloy member 40 may be energized to change the internal phase from martensite to austenite when the temperature rises to the transformation point, which macroscopically manifests as a shorter length. When the memory alloy member 40 is powered off, the temperature is reduced to the transformation point, and the internal metallographic phase is changed from austenite to martensite, which macroscopically shows that the length is increased until the original length is recovered.

The memory alloy member 40 is an intelligent material, has the advantages of simple structure, small occupied space, large energy density, driving strain and driving stress, low driving voltage, easy obtainment and the like, and has wide application prospect in consumer electronics products. For example, the memory alloy member 40 may be applied to a camera in the related art, so as to implement an anti-shake technique for the camera. The memory alloy piece 40 can also be applied to the field of pen power, the memory alloy piece 40 is used as a driving force, the memory alloy piece 40 is retracted when the power is on, so that the position of the magnet group is controlled, and the function of one-key opening and closing (Knock) of the notebook computer is realized under the action of a magnetic field. The length of the member 40 can be controlled based on the measure of resistance in a particular control.

Therefore, the locking mechanism 1 provided in the present embodiment can achieve the locking function through the mutual cooperation of the first fixing element 11 in the fixing assembly 10, the locking element 21 in the locking assembly 20, and the memory alloy element 40. Specifically, the memory alloy member 40 may be directly or indirectly connected to the locking member 21, and the memory alloy member 40 is used to control the sliding of the locking member 21. When the second housing 52 slides to a position to be locked relative to the first housing 51, the memory alloy member 40 can be correspondingly controlled to contract or extend by powering on or powering off, and the length of the memory alloy member 40 is adjusted to drive the locking member 21 to slide relative to the first fixing member 11, so that the locking member 21 is connected with the second housing 52, thereby fixing the second housing 52 and realizing the positioning function. Or the locking member 21 is separated from the second housing 52 so that the second housing 52 can continue to slide. In addition, after the second shell 52 is positioned with the first shell 51 through the locking mechanism 1, the whole machine can be effectively protected when falling, so that the flexible screen 60 is prevented from being damaged, or the internal structure of the whole machine is prevented from being damaged.

As can be seen from the above, the lock mechanism 1 has the memory alloy member 40 which can control the sliding state of the lock member 21 when sliding with respect to the first fixing member 11. And in the sliding state, the locking piece 21 can be connected with the second shell 52 in a sliding way to realize the positioning of the second shell 52, or the locking piece 21 is separated from the second shell 52 so that the second shell 52 can continue to slide. The locking mechanism 1 thus has two states in the sliding state: the locking member 21 locks the second housing 52 in the locked state, and the locking member 21 separates from the second housing 52 in the unlocked state. When the locking mechanism 1 is in the unlocked state, the memory alloy member 40 is electrified to contract the memory alloy member 40, so as to drive the locking member 21 to slide relative to the first fixing member 11, so that the locking member 21 is separated from the second housing 52, and the second housing 52 can slide relative to the first housing 51. When the locking mechanism 1 is in the locked state, the memory alloy member 40 is returned to its original length by cutting off the power to the memory alloy. Meanwhile, the locking member 21 slides relative to the first fixing member 11, so that the locking member 21 is connected to the second housing 52, and the sliding of the second housing 52 is limited, thereby realizing the locking function. In the embodiment, the unlocking and locking processes are realized by powering on and powering off the memory alloy part 40, and the logic is simple.

However, when the memory alloy member 40 is energized, the internal phase changes from martensite to austenite when the temperature rises to the transformation point, although it appears macroscopically that the length becomes shorter. However, this length reduction is not always possible, i.e., not as short as the phase change, but rather as short as the phase change, there is a shrinkage rate per memory alloy piece 40, with yields of typically 3.5% to 4%, and the shorter the shrinkage rate used, the longer the life. When the memory alloy member 40 generates a rated displacement, the length of the memory alloy member 40 to be used can be calculated according to the shrinkage rate, and the length is an effective length.

The present embodiment can also change the connection manner of the memory alloy member 40. Specifically, the memory alloy member 40 includes two ends disposed oppositely: a first end 401 and a second end 402. First, the two ends can be connected to different components, wherein the first end 401 can be connected to the locking member 21, and the second end 402 can be fixed to the first housing 51, so that when the memory alloy member 40 is powered on, the memory alloy member 40 contracts, and because the second end is fixed to the first housing 51, only the second end 402 can move, and further the locking member 21 is pulled to slide, and finally the memory alloy member 40 is used to control the movement of the locking member 21.

And the member 40 includes at least one wrapped end 403 disposed between the first end 401 and the second end 402 in addition to the first end 401 and the second end 402. Alternatively, the memory alloy member 40 includes one winding end 403 in the present embodiment, and the memory alloy member 40 may include a plurality of winding ends 403 in other embodiments, and correspondingly, a plurality of winding portions 510 are disposed on the first housing 51. Wherein the winding 510 can also be understood as a pulley for winding the winding end 403. The winding end 403 is mainly used for winding onto the winding portion 510 of the first housing 51 to change the extending direction of the memory alloy member 40 (as shown in the directions D3 and D4 in fig. 2). The straight memory alloy member 40 is bent at the winding end 403, for example, the memory alloy member 40 in the shape of a Chinese character "Yi" is bent into a "U" shape. The above-mentioned extending direction may be understood as an extending direction from the first end 401 to the second end 402, or may be understood as an extending direction from the second end 402 to the first end 401, and the extending direction is only schematically illustrated as an extending direction from the first end 401 to the second end 402 in the present embodiment. Therefore, the original extending direction of the memory alloy member 40 is D3, but after the winding end 403 is wound and changed in direction, the extending direction is D4.

Therefore, the length of the memory alloy piece 40 can be increased in the same space, so that the effective length of the memory alloy piece 40 is increased, the slidable distance of the locking piece 21 is increased, and the difficulty in locking and unlocking the locking piece 21 and the second shell 52 is reduced. In addition, because the effective length of the memory alloy piece 40 is increased, the shrinkage rate of the memory alloy piece 40 can be reduced on the premise that the locking piece 21 slides for the same distance, and the service life of the memory alloy piece 40 is prolonged.

Alternatively, the form of winding the winding end 403 around the winding portion 510 is not limited in this embodiment, for example, the winding end 403 may be wound a half turn around the winding portion 510, or the winding end 403 may be wound a turn around the winding portion 510, as long as the movement of the locking member 21 is not affected when the memory alloy member 40 is contracted.

Alternatively, when the memory alloy member 40 is energized, current may be introduced from the first terminal 401 and the second terminal 402 of the memory alloy member 40, i.e. positive and negative voltages are applied to the first terminal 401 and the second terminal 402, respectively.

In summary, the locking mechanism 1 provided in the present embodiment not only can achieve the locking function, but also can increase the effective length of the memory alloy element 40, increase the slidable distance of the locking element 21, reduce the difficulty of locking and unlocking the locking element 21 and the second housing 52, and improve the service life of the memory alloy element 40.

It should be noted that reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The terms "first" and "second" appearing in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected", "disposed in \8230, and \8230, or" disposed on "are to be understood in a broad sense, e.g., as being fixedly connected, detachably connected, or integrally connected; may be a mechanical connection; they may be connected directly or indirectly through other media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Please refer to fig. 9, fig. 9 is a schematic perspective view of a memory alloy member according to an embodiment of the present application. In this embodiment, the memory alloy member 40 further includes a first portion 404 and a second portion 405 extending from the first portion 404 in the opposite direction, and a connection portion between the first portion 404 and the second portion 405 is a winding end 403 of the memory alloy member 40.

The memory alloy member 40 may further include a first portion 404 and a second portion 405 in addition to the first end 401, the second end 402, and the winding end 403. Two opposite sides of the first portion 404 connect the first end 401 and the winding end 403, in other words, the first portion 404 is a middle portion of the first end 401 and the winding end 403. The opposite sides of the second portion 405 connect the second end 402 and the winding end 403, in other words, the second portion 405 is the middle portion of the second end 402 and the winding end 403.

It should be noted that the winding ends 403 of the first portion 404 and the second portion 405 may be the same winding end 403, or different winding ends 403. When the first portion 404 is connected to the second portion 405 by the same winding end 403, the memory alloy member 40 is illustrated as including only one winding end 403. When the first portion 404 is connected to the second portion 405 at different winding ends 403, the marmem device 40 will be described as including a plurality of winding ends 403, and the marmem device 40 will include additional parts.

In addition, the extending direction of the first portion 404 is a direction from the first end 401 to the first portion 404 away from the first end 401 (as shown in the D3 direction in fig. 9). The extending direction of the second portion 405 is the direction from the second portion 405 to the second end 402 away from the second end 402 (as shown in the direction D4 in fig. 9). In this embodiment, the direction D3 and the direction D4 are parallel to each other, so that the first portion 404 and the second portion 405 are parallel to each other, the effective length of the memory alloy member 40 is further increased, and the force of the memory alloy member 40 is more transmitted to the locking member 21 when the memory alloy member 40 contracts, so as to drive the locking member 21 to move. And the present embodiment may also have D3 in the same or opposite direction as D4. The direction of the memory alloy member 40 is the same, and the direction of the memory alloy member is opposite to the direction of the memory alloy member, and the embodiment is schematically illustrated with the direction of D3 being opposite to the direction of D4.

Referring to fig. 10, fig. 10 is a top view of a memory alloy member according to an embodiment of the present disclosure. In the present embodiment, the length of the first portion 404 is equal to the length of the second portion 405 in the extending direction of the first portion 404.

In addition to controlling the direction of extension, the present embodiment may further increase the effective length of the memory alloy member 40 within the same space by making the length of the first portion 404 equal to the length of the second portion 405.

Referring to fig. 11, fig. 11 is a top view of a memory alloy member according to another embodiment of the present application. In this embodiment, the memory alloy member 40 includes a plurality of winding ends 403, and the memory alloy member 40 further includes at least one third portion 406, and two opposite sides of each third portion 406 are respectively connected to one winding end 403.

In this embodiment, the memory alloy member 40 may include a plurality of winding ends 403, and thus may include a third portion 406 in addition to the first portion 404 and the second portion 405. When the member 40 includes two wrapped ends 403, the member 40 includes only a third portion 406. When the member 40 includes more than two wound ends 403, the member 40 includes a plurality of third portions 406. For the third portions 406, one winding end 403 is attached to each of the opposite sides of each third portion 406. Therefore, the present embodiment can make the shape of the memory alloy member 40 into a wave shape by winding the memory alloy member 40 several times, thereby further increasing the effective length of the memory alloy member 40 in the same space. The present embodiment is only schematically illustrated with the memory alloy member 40 including two winding ends 403 and a third portion 406.

The relationship between the third portion 406 and the first and

second portions

404 and 405 in terms of the extending direction and length is not limited in this embodiment. For example, the extending direction of the third portion 406 may be parallel to the extending direction of the first portion 404 and the second portion 405. For example, the length of the third portion 406 may be equal to the length of the first portion 404 and the length of the second portion 405, and the length of the third portion 406 may not be equal to the length of the first portion 404 and the length of the second portion 405.

Various details of the memory alloy piece 40 along the extension of the memory alloy piece 40 are discussed in detail above. Next, the detailed structure in the direction perpendicular to the extending direction of the memory alloy member 40 will be discussed. Referring to fig. 12, fig. 12 is a top view of a locking mechanism according to an embodiment of the present application. In the present embodiment, in a direction perpendicular to the extending direction of the memory alloy member 40, the width of the memory alloy member 40 is smaller than or equal to the overall width of the fixing assembly 10 when the fixing assembly 10 is matched with the locking assembly 20.

As is apparent from the above description, the memory alloy member 40 changes the extending direction of the memory alloy member 40 by winding the winding end 403 around the winding portion 510 of the first housing 51, so that the memory alloy member 40, which is originally in the shape of a straight line, now becomes a member having a certain width in a direction perpendicular to the extending direction of the memory alloy member 40. And it is with respect to the locking member 21 and the first fixing member 11 that the locking member 21 is slidably coupled to the first fixing member 11 so that the locking member 21 has an overall width when it is coupled to the first fixing member 11. Wherein, when the locking member 21 slides to one side of the first fixing member 11, the whole width can be understood as the sum of the widths of the locking member 21 and the first fixing member 11 in the direction perpendicular to the extending direction of the memory alloy member 40 (the direction shown as D5 in fig. 12). When the locking member 21 is slidably coupled to the sliding space 111 in the first fixing member 11, the entire width can be understood as the maximum value between the width of the locking member 21 and the width of the first fixing member 11 in the direction perpendicular to the extending direction of the memory alloy member 40.

In the present embodiment, the width of the memory alloy member 40 (L1 in fig. 12) is smaller than or equal to the whole width of the first fixing member 11 when the locking member 21 is engaged (L2 in fig. 12), in other words, the width of the memory alloy member 40 is not larger than the whole width of the first fixing member 11 when the locking member 21 is engaged. Therefore, on the basis of increasing the effective length of the memory alloy part 40, the whole width of the locking mechanism 1 is not increased, the miniaturization of the locking mechanism 1 is realized, and the locking mechanism is convenient to be installed in the electronic equipment 3.

Referring to fig. 1, 8 and 12, in the present embodiment, the fixing assembly 10 includes a clip 14 and a second fixing member 13, the second fixing member 13 is used for fixing a second end 402 of the memory alloy member 40 to the first housing 51, the second fixing member 13 has a receiving hole 130, the clip 14 is clipped on an outer periphery of the second fixing member 13 and is exposed through the receiving hole 130, the memory alloy member 40 penetrates through the second fixing member 13 through the receiving hole 130, and the second end 402 is connected to the clip 14.

The fixing assembly 10 may further include a second fixing member 13 and a snap member 14 in addition to the first fixing member 11. The first fixing member 11 is used for connecting the locking member 21 to the first housing 51, and the second fixing member 13 is used for fixing the second end 402 of the memory alloy member 40 to the first housing 51. Specifically, the second fixing element 13 has a receiving hole 130, and optionally the receiving hole 130 penetrates through two opposite side surfaces of the second fixing element 13, and the top surface of the two opposite side surfaces is bent and connected, that is, the receiving hole 130 of the present embodiment may have a hole-shaped structure with three open sides. The engaging member 14 can be engaged with one of the two opposite side surfaces of the second fixing member 13, in other words, the engaging member 14 can be engaged with the opening surface of the second fixing member 13 facing away from the winding portion 510. Then the memory alloy member 40 penetrates the second fixing member 13 through the receiving hole 130 and connects the second end 402 with the clamping member 14.

When the memory alloy fixing member 13 is installed, the second end 402 can be connected to the fastening member 14, and then the second end 402 and the fastening member 14 enter the receiving hole 130 from the opening of the top surface, so that the memory alloy member 40 penetrates through the second fixing member 13, and the fastening member 14 is fastened to the second fixing member 13. Finally, the second fixing member 13 is fixed to the first housing 51 by using the sixth through hole 131 of the second fixing member in cooperation with a screw. This not only reduces the difficulty of fixing the second end 402 to the first housing 51, but also keeps the second end 402 in a fixed state when the memory alloy member 40 is electrically contracted due to the presence of the snap-in member 14, and only the first end 401 moves to move the locking member 21.

Referring to fig. 1-2 and 13, fig. 13 is an exploded view of a locking member, a connecting member and a memory alloy member according to an embodiment of the present disclosure. In this embodiment, the locking mechanism 1 further includes a connecting assembly 30, one end of the connecting assembly 30 is connected to the first end 401, and the other end of the connecting assembly 30 opposite to the first end is connected to the locking assembly 20.

The locking mechanism 1 may further include a coupling assembly 30 in addition to the above components, such that the coupling assembly 30 couples the first end 401 to the locking member 21. In other words, in the present embodiment, the first end 401 is not directly connected to the locking member 21, but is indirectly connected to the locking member 21 through the connecting member 30. This not only reduces the difficulty of connecting the first end 401, but also allows for more functionality with the connecting assembly 30.

For the connection assembly 30 and the first end 401, a seventh through hole 407 may be formed in the first end 401, and a corresponding groove may be formed in the connection assembly 30, and then the pin 362 may be used to connect the connection assembly 30 and the first end 401.

For the connecting assembly 30 and the locking member 21, a connecting groove 300 may be formed on the connecting assembly 30, an end of the locking member 21 is disposed in the connecting groove 300, an eighth through hole 213 is formed on the locking member 21, and then the connecting assembly 30 and the locking member 21 are connected by using a pin 362.

Referring to fig. 9 again, in the present embodiment, the memory alloy member 40 further includes a first portion 404 connected between the first end 401 and the winding end 403, the first end 401 has a connection surface 408 connected to the connection component 30, and a height of the connection surface 408 is greater than a height of the first portion 404 in a direction perpendicular to the extending direction of the memory alloy member 40.

The first portion 404 of the memory alloy member 40 is described in detail above, and the description of the present embodiment is omitted here. Since the present embodiment can connect the first end 401 to the connection member 30, the first end 401 has a connection face 408 for connecting the connection member 30. In this embodiment, the height of the connecting surface 408 in the direction perpendicular to the extending direction of the memory alloy member 40 (as shown by the direction D6 in fig. 9) may be greater than the height of the first portion 404. In other words, the first end 401 of the present embodiment is increased in size, so as to be better connected to the connection assembly 30, thereby reducing the difficulty of connection.

Referring to fig. 13 again, in the present embodiment, the first end 401 and the connecting assembly 30 are matched with each other through the limiting block 410 and the limiting hole 411 to realize limiting connection; the limiting block 410 is disposed on one of the first end 401 and the connecting component 30, and the limiting hole 411 is disposed on the other of the first end 401 and the connecting component 30.

This embodiment still can utilize stopper 410 and spacing hole 411 to carry on spacingly to first end 401 and coupling assembling 30 to further reduce the degree of difficulty of being connected of first end 401 and coupling assembling 30, improve the location effect. Optionally, the limiting block 410 is disposed on the first end 401, and the limiting hole 411 is disposed on the connecting assembly 30. Or the limiting block 410 is disposed in the connecting assembly 30 and the limiting hole 411 is disposed in the first end 401. The embodiment is schematically described only by disposing the limiting block 410 on the limiting hole 411 of the connecting assembly 30 and disposing the limiting block on the first end 401.

The above mentioned locking mechanism 1 has a sliding state when the locking member 21 can slide relatively to the first fixing member 11, and the locking and unlocking with the second housing 52 are realized by controlling the sliding of the locking member 21 through the memory alloy member 40 in the sliding state. However, when the locking member 21 is locked with the second housing 52, the memory alloy member 40 cannot control the sliding of the locking member 21 relative to the first fixing member 11 under some special circumstances. For example, when the user holds the second housing 52 with a hand, a force is generated, which acts on the contact surface between the locking member 21 and the second housing 52, so as to increase the positive pressure between the locking member 21 and the second housing 52, and the memory alloy member 40 will generate a friction force between the locking member 21 and the second housing 52 when the locking member 21 slides due to contraction, and the locking member 21 can be slid out from the second housing 52 after the friction force is overcome. Therefore, when the holding force of the user's hand is large, the friction force to be overcome is also very large, and if the pulling force generated on the locking member 21 when the memory alloy member 40 contracts is not enough to overcome the friction force, the memory alloy member 40 contracts and cannot drive the locking member 21 to slide, that is, the locking member 21 remains stationary with respect to the first fixing member 11 and the second housing 52, which is called a locked state. A stuck state can thus be understood as a special case of a locked state.

When the locking mechanism 1 is in the locked state, the locking member 21 is fixed, and at this time, if the memory alloy member 40 is still energized, the memory alloy member 40 still needs to be contracted. But the first end 401 is connected to the locking member 21. This plastically deforms the memory alloy member 40, which results in a longer length of the member and a deterioration in the performance of the member 40.

Referring to fig. 14-16 together, fig. 14 is a schematic perspective view of a locking mechanism according to another embodiment of the present application. Fig. 15 is an exploded view of the locking mechanism shown in fig. 14. FIG. 16 is a schematic perspective view of the memory alloy member shown in FIG. 14 when the locking mechanism is in a locked state. In this embodiment, the connection assembly 30 includes a first connection member 31 and a second connection member 32 detachably connected to the first connection member 31, the other end opposite to the first connection member 31 is fixedly connected to the first end 401, and one end of the second connection member 32, which is far away from the first connection member 31, is disposed on the locking assembly 20.

When the locking assembly 20 is fixed relative to the fixing assembly 10 and the memory alloy element 40 is in the contracted state, the memory alloy element 40 can drive the first connecting element 31 to be separated from the second connecting element 32, and drive the first connecting element 31 to move in a direction away from the second connecting element 32.

In view of this, the locking mechanism 1 of the present embodiment further includes a connecting assembly 30 including a first connecting member 31 and a second connecting member 32, wherein the first connecting member 31 is connected to the first end 401 of the memory alloy member 40, and the second connecting member 32 is connected to the locking member 21. Meanwhile, the first connecting member 31 is detachably connected to the second connecting member 32, in other words, the first connecting member 31 is not always connected to the second connecting member 32. The first connecting member 31 can be connected to the second connecting member 32 by various means, or the first connecting member 31 can be separated from the second connecting member 32. When the first connecting piece 31 can be connected with the second connecting piece 32, the memory alloy piece 40, the first connecting piece 31, the second connecting piece 32 and the locking piece 21 are connected together, and the change of the length of the memory alloy piece 40 can drive the locking piece 21 to move synchronously, so that locking and unlocking are realized. When the first connecting member 31 can be separated from the second connecting member 32, the memory alloy member 40 cannot drive the locking member 21 to move, and the memory alloy member 40 can only drive the first connecting member 31 to move.

When the locking mechanism 1 is in the locked state, since the locking member 21 is fixed, but the memory alloy member 40 still contracts to reduce the length, in this embodiment, the memory alloy member 40 can drive the first connecting member 31 to separate from the second connecting member 32, and drive the first connecting member 31 to move in the direction (as shown in the direction D2 in fig. 16) away from the second connecting member 32, so that the memory alloy member 40 moves normally. In other words, the memory alloy member 40 is normally contracted by separating the first connecting member 31 from the second connecting member 32, so that the memory alloy member 40 can be effectively protected, the memory alloy member 40 cannot be separated from the locking member 21 and is plastically deformed, the length of the memory alloy member is lengthened, and the memory alloy member 40 is prevented from being damaged.

Specifically, in the normal operation state, i.e. the sliding state, the locking mechanism 1 electrically contracts the memory alloy member 40 to move the first connecting member 31. And the first link 31 and the second link 32 are connected together in the sliding state. When the friction between the locking member 21 and the second housing 52 is small, the first connecting member 31 and the second connecting member 32 are always connected together to form a rigid whole. Therefore, the first connecting member 31 can drive the second connecting member 32 and the locking member 21 to slide, so that the locking member 21 and the second housing 52 are classified to realize the unlocking function. After the power is cut off to the memory alloy member 40, the memory alloy member 40 can be extended to its original length, and at the same time, the locking member 21 can slide reversely to reconnect the locking member 21 to the second connecting member 32, thereby realizing the locking function.

When the locking mechanism 1 is in a dead-lock state, the memory alloy member 40 is electrified to contract so as to drive the first connecting member 31 to move. At this time, the friction between the locking member 21 and the second housing 52 is large, so that the locking member 21 cannot move and the second connecting member 32 cannot move. At this time, the memory alloy member 40 can be separated from the first connecting member 31 and the second connecting member 32, so that the memory alloy member 40 can still be contracted normally, thereby avoiding the memory alloy member 40 from being damaged due to the dead-lock state. The memory alloy member 40 is electrically disconnected and then extended to its original length, and the first connecting member 31 and the second connecting member 32 can be reconnected together. When the friction between the locking member 21 and the second casing 52 is reduced, i.e. when the hand-gripping force is reduced, the locking mechanism 1 can return to the normal operation state for movement.

In summary, the locking mechanism 1 provided in the present embodiment not only can achieve the locking function, but also can effectively protect the memory alloy element 40 in the locked state, solve the failure problem in the locked state, and protect the memory alloy element 40 from being damaged.

In this embodiment, the tensile force applied to the first connecting member 31 when the memory alloy member 40 contracts is greater than the connecting force between the first connecting member 31 and the second connecting member 32.

As can be seen from the above, the first connector 31 and the second connector 32 can be connected together for various reasons. Therefore, when the first connecting member 31 is connected to the second connecting member 32, a connecting force F1 is generated between the first connecting member 31 and the second connecting member 32. Meanwhile, when the memory alloy element 40 is electrified, the memory alloy element 40 contracts, and the memory alloy element 40 pulls the first connecting element 31 backward, so that the memory alloy element 40 generates a pulling force F2 on the first connecting element 31. In the embodiment, F2> F1, so that when the locking mechanism 1 is in the locked state, the memory alloy member 40 contracts to drive the first connecting member 31 and the second connecting member 32 to separate, thereby effectively protecting the memory alloy member 40.

Optionally, the connection force F1 between the first connection member 31 and the second connection member 32 is 80% -99% of the pulling force F2 of the memory alloy member 40 on the first connection member 31 when the memory alloy member contracts. In other words, in the present embodiment, F1 can be made as large as possible based on F1 being smaller than F2, which is beneficial to normal sliding of the lock mechanism 1 in the sliding state and prevents the first connecting member 31 from separating from the second connecting member 32.

In this embodiment, the first fixing member 11 is configured to be fixed to a first housing 51, the locking member 21 is configured to be locked to a second housing 52, and the first housing 51 is slidably connected to the second housing 52; when the locking mechanism 1 is in the locked state, the frictional force between the locking member 21 and the second housing 52 is greater than the connecting force between the first connecting member 31 and the second connecting member 32.

As can be seen from the above, when the locking mechanism 1 is in the locked state, a friction force F3 is generated between the locking member 21 and the second housing 52, and in this embodiment, F3> F1 is generated, so that the locking mechanism 1 can be in the above-mentioned locked state, even if the maximum connecting force between the first connecting member 31 and the second connecting member 32 is reached, the locking mechanism 1 cannot be pulled, that is, the first connecting member 31 cannot pull the second connecting member 32 to slide. Therefore, if the force applied by the first connecting member 31 to the second connecting member 32 is greater than the force applied by the first connecting member 31 to the second connecting member 32, the first connecting member 31 and the second connecting member 32 can be made to be the same, so as to effectively protect the memory alloy member 40.

In addition, the relationship between the pulling force F2 of the memory alloy member 40 on the first connecting member 31 and the frictional force F3 between the locking member 21 and the second housing 52 when the memory alloy member is contracted is not limited in the present embodiment. In one embodiment, F2 may be greater than F3, in one embodiment F2 may be less than F3, and in other embodiments F2 may be equal to F3.

Referring to fig. 17-18 together, fig. 17 is a schematic perspective view of a locking mechanism according to another embodiment of the present application. Fig. 18 is an exploded view of the locking mechanism shown in fig. 17. In this embodiment, the fixing assembly 10 includes a first fixing member 11 and a third fixing member 12 spaced apart from the first fixing member 11, the locking assembly 20 is slidably connected to the first fixing member 11 and the third fixing member 12, and the first connecting member 31 and the second connecting member 32 are disposed on the third fixing member 12.

The first fixing member 11 has been described above in detail, and the description of the embodiment is omitted here. The third fixing member 12 is mainly used for mounting the respective components of the connecting assembly 30. Alternatively, in an embodiment, the third fixing member 12 may be fixed to the first housing 51 as the first fixing member 11. In another embodiment, the third attachment member 12 may not be attached to any component. The present embodiment is schematically illustrated only by fixing the third fixing member 12 to the first housing 51. Specifically, the third fixing member 12 and the first housing 51 may be provided with a second through hole 120, and then the third fixing member 12 may be fixed to the first housing 51 by using a screw. The present embodiment achieves the assembly of the connecting assembly 30 by providing the first connecting member 31 and the second connecting member 32 on the third fixing member 12. The locking assembly 20 is slidably connected to the first fixing member 11 and the third fixing member 12, so that the locking assembly 20 can be connected to the second connecting member 32 disposed on the third fixing member 12.

Referring to fig. 17 to fig. 18 again, in this embodiment, the connecting assembly 30 further includes a first mounting part 33 and a first elastic part 34, the first mounting part 33 is connected to the first connecting part 31 and the first end 401, and two opposite ends of the first elastic part 34 respectively abut against the first mounting part 33 and the third fixing part 12, so that the first connecting part 31 is slidably connected to the third fixing part 12.

When the memory alloy member 40 contracts, the memory alloy member can drive the first connecting member 31 and the first mounting member 33 to move in a direction away from the second connecting member 32, and the first elastic member 34 is in a compressed state; when the memory alloy member 40 extends, it cooperates with the first elastic member 34 in a compressed state, so that the first connecting member 31 and the first mounting member 33 both move in a direction approaching the second connecting member 32, and the first connecting member 31 is connected to the second connecting member 32.

The connecting assembly 30 includes a first mounting member 33 and a first elastic member 34 in addition to the first connecting member 31 and the second connecting member 32. The first mounting member 33 is mainly used for mounting the first connecting member 31 and the memory alloy member 40, and the first elastic member 34 is mainly used for providing elastic force to extend.

In this embodiment, the first connecting member 31 and the first end 401 are both mounted on the first mounting member 33, and the first connecting member 31 is slidably connected to the third fixing member 12. The third fixing member 12 thus provides not only the function of mounting the connecting assembly 30, but also the function of slidably guiding and positioning the first connecting member 31. And the two opposite ends of the first elastic element 34 respectively support against the first mounting element 33 and the third fixing element 12. It should be noted that the following references to abutting in this embodiment and the following description mean that only contacting is required, and how to abut specifically may be abutting, may also be fixed connection, may also be adhesion, and the like.

Through the above arrangement, when the locking mechanism 1 is in the locked state, the memory alloy element 40 is powered on to contract the memory alloy element 40, so as to drive the first mounting part 33 connected with the first end 401 to move along the direction away from the second connecting part 32, thereby driving the first connecting part 31 mounted on the first mounting part 33 to separate from the second connecting part 32 and also slide along the direction away from the second connecting part 32. Meanwhile, since the third fixing element 12 is usually kept still, the first mounting element 33 can compress the first elastic element 34 during sliding, so that the first elastic element 34 is in a compressed state, and at this time, the first elastic element 34 has a tendency of returning to its original shape and gives the first mounting element 33 an elastic force in a direction toward the second connecting element 32, but since the first mounting element 33 is pulled by the memory alloy element 40 after being contracted all the time, the first mounting element 33 cannot move. However, when the memory alloy element 40 is powered off, the memory alloy element 40 extends to the original length, and at this time, the length of the memory alloy element 40 increases, and the first mounting element 33 cannot be pulled any more, and the first mounting element 33 can move in the direction close to the second connecting element 32 under the elastic force given by the first elastic element 34, so as to drive the first connecting element 31 and the first end 401 to move in the direction close to the second connecting element 32 synchronously, and finally, the first connecting element 31 is connected with the second connecting element 32 again, and the memory alloy element 40 after being extended is pulled to the original shape. When the locking mechanism 1 is in a normal sliding state, the memory alloy member 40 can be used to pull the locking member 21 to slide for locking and unlocking. If the locking mechanism 1 is still in the locked state, the above operation is repeated to effectively protect the memory alloy member 40.

Alternatively, the first resilient member 34 may be in a plurality of states when the memory alloy member 40 is not energized. For example, in one embodiment, the first resilient element 34 is in equilibrium, and in another embodiment, the first resilient element 34 is already in compression, such that the resilient force of the first resilient element 34 can be used to cause the first mounting element 33 to tension the memory alloy element 40, thereby placing the memory alloy element 40 in a pre-tensioned state and facilitating the contraction of the memory alloy element 40 after the memory alloy element 40 is energized.

Alternatively, the first connector 31 may be bonded to the first mounting member 33.

Referring to fig. 19, fig. 19 is an exploded schematic view of a third fixing element according to an embodiment of the present application. In this embodiment, the third fixing member 12 has an accommodating space 126, at least a part of the first connecting member 31, at least a part of the second connecting member 32, at least a part of the first mounting member 33, and the first elastic member 34 are provided in the accommodating space 126, and the locking member 21 penetrates through a side wall of the accommodating space 126 and is connected to the second connecting member 32.

The third fixing member 12 may have a receiving space 126 therein, such that at least a portion of the first connecting member 31, at least a portion of the second connecting member 32, at least a portion of the first mounting member 33, and the first elastic member 34 are received in the receiving space 126. Meanwhile, the locking member 21 can penetrate through the third fixing member 12 into the receiving space 126 to connect with the second connecting member 32. Therefore, each part of the connecting assembly 30 can be effectively protected, and the assembly difficulty is reduced.

Optionally, the third fixing element 12 includes a first fixing portion 12a and a second fixing portion 12b, the first fixing portion 12a and the second fixing portion 12b are separated, the first connecting element 31 is slidably connected to the first fixing portion 12a, and the first elastic element 34 abuts against the second fixing portion 12 b. The split structure means that the first fixing portion 12a and the second fixing portion 12b are separately prepared, and then the first fixing portion 12a and the second fixing portion 12b are connected together through various methods, so that the difficulty of installing the connecting assembly 30 in the third fixing member 12 can be further reduced, and the installation and the disassembly are convenient. Of course, in other embodiments, the first fixing portion 12a and the second fixing portion 12b may be an integral structure, that is, the first fixing portion 12a and the second fixing portion 12b are prepared in one process, but for convenience of understanding, different regions are named differently.

Specifically, the first fixing portion 12a includes a first plate 121, a second plate 122, a third plate 123, a fourth plate 124, and a fifth plate 125. The second plate 122 and the third plate 123 are bent and connected to opposite sides of the first plate 121 to form a U-shaped structure, the fourth plate 124 is bent and connected to one ends of the first plate 121, the second plate 122, and the third plate 123, and the second fixing portion 12b is bent and connected to the other ends of the first plate 121, the second plate 122, and the third plate 123. Thus, the first plate 121, the second plate 122, the third plate 123, the fourth plate 124, and the second fixing portion 12b can enclose an accommodating space 126 having an opening on one side, and the opening is not only convenient for mounting and dismounting the connecting assembly 30, but also provides a foundation for mounting the subsequent first mounting component 33. Optionally, a third through hole 127 may be formed on the fourth plate 124, so that the locking member 21 extends through the third through hole 127 to connect to the second connecting member 32.

The fifth plate 125 is bent and connected to the second plate 122 or the third plate 123, and the fifth plate 125 may be provided with a second through hole 120, so that the third fixing element 12 is fixed to the first housing 51 by the fifth plate 125.

Alternatively, the first plate 121, the second plate 122, the third plate 123, the fourth plate 124, and the fifth plate 125 may be an integrated structure or a split structure, and the embodiment is not limited herein.

Referring to fig. 20, fig. 20 is an exploded view of a third fixing element, a first connecting element and a second connecting element according to an embodiment of the present application. In this embodiment, the first connecting member 31 and the third fixing member 12 are cooperatively connected to a first sliding groove 1221 through a first sliding block 3111, the first sliding block 3111 is disposed on one of the first connecting member 31 and the side wall of the accommodating space 126, and the first sliding groove 1221 is disposed on the other of the first connecting member 31 and the side wall of the accommodating space 126.

In this embodiment, the first connecting member 31 and the third fixing member 12 can be matched with each other through the first sliding block 3111 and the first sliding slot 1221, so that the first connecting member 31 is slidably connected to the third fixing member 12. Specifically, the first sliding groove 1221 is disposed on the sidewall of the accommodating space 126 when the first slider 3111 is disposed on the first connecting member 31. The first groove is provided on the first connector 31 when the first slider 3111 is provided on the sidewall of the receiving space 126. In the present embodiment, only the first slider 3111 is disposed on the first connector 31, and the first chute 1221 is disposed on the side wall of the accommodating space 126.

Specifically, the end portions of the opposite ends of the first connecting member 31 may serve as the first sliding block 3111, and the third fixing member 12 may have a first sliding slot 1221 formed in at least one of the second plate 122 and the third plate 123 of the first fixing portion 12a, and the extending direction of the first sliding slot 1221 is parallel to the length direction of the memory alloy member 40. Thus, the end of the first connecting member 31 is disposed in the first sliding slot 1221, and the memory alloy member 40 can slide in the first sliding slot 1221 with the first connecting member 31 of the first mounting member 33 when it is retracted.

Optionally, the first sliding slot 1221 may penetrate at least one of the second plate 122 and the third plate 123.

Referring to fig. 20 again, in the present embodiment, the second connecting member 32 and the third fixing member 12 are connected to a second sliding groove 1222 through a second sliding block 3211, the second sliding block 3211 is disposed on one of the side walls of the second connecting member 32 and the accommodating space 126, and the second sliding groove 1222 is disposed on the other of the side walls of the second connecting member 32 and the accommodating space 126.

In this embodiment, the second connecting member 32 and the third fixing member 12 can be matched with each other through the second sliding block 3211 and the second sliding slot 1222, so that the second connecting member 32 is slidably connected to the third fixing member 12. Specifically, the second sliding groove 1222 is disposed on a sidewall of the receiving space 126 when the second slider 3211 is disposed on the second connecting member 32. When the second slider 3211 is disposed on the sidewall of the accommodating space 126, the first groove is disposed on the second connecting member 32. In the present embodiment, only the second slider 3211 is schematically illustrated as being provided on the second link 32, and the second runner 1222 is provided on the side wall of the accommodating space 126.

Specifically, the ends of the opposite ends of the second connecting member 32 may serve as the second sliding blocks 3211, and the third fixing member 12 may have a second sliding slot 1222 formed in at least one of the second plate 122 and the third plate 123 of the first fixing portion 12a, such that the extending direction of the second sliding slot 1222 is parallel to the length direction of the memory alloy member 40. Thus, the end of the second connecting member 32 is disposed in the second sliding groove 1222, so that the memory alloy member 40 can slide in the second sliding groove 1222 with the second connecting member 32 of the second mounting member 36 when it is contracted under normal sliding condition.

Alternatively, the first sliding groove 1221 and the second sliding groove 1222 may communicate with each other, or the first sliding groove 1221 and the second sliding groove 1222 may be integrated.

Optionally, the second chute 1222 may penetrate at least one of the second plate 122 and the third plate 123.

Referring to fig. 20 to 23, fig. 21 is a schematic view illustrating a third fixing element, a first connecting element, a memory alloy element, a first mounting element, and a first elastic element according to an embodiment of the present disclosure. FIG. 22 is a schematic view of the first connecting member, the memory alloy member, the first mounting member, and the first resilient member shown in FIG. 21. Fig. 23 is a perspective view of the first mounting member shown in fig. 21. In this embodiment, the first mounting member 33 includes a first connecting portion 331, a second connecting portion 332, and a third connecting portion 333, the first connecting portion 331 has a first receiving slot 3310, the first connecting member 31 is disposed in the first receiving slot 3310, the second connecting portion 332 is disposed on a slot wall of the first receiving slot 3310 of the first connecting portion 331, the first end 401 is connected to the second connecting portion 332, the third connecting portion 333 is disposed on a side of the first connecting portion 331 away from the first connecting member 31, the first elastic member 34 is disposed on the third connecting portion 333, and two opposite ends of the first elastic member 34 respectively abut against a side of the first connecting portion 331 away from the first connecting member 31 and a side wall of the third fixing member 12.

The first mounting part 33 may include three connecting parts: the first connecting portion 331, the second connecting portion 332, and the third connecting portion 333, wherein a side of the first connecting portion 331 close to the second connecting portion 32 has a first accommodating slot 3310, and a portion of the first connecting portion 31 can be disposed in the first accommodating slot 3310, so that the first slider 3111 at the end of the first connecting portion 31 is exposed, and the first slider 3111 can be disposed in the first sliding slot 1221. The second connecting portion 332 is fixedly disposed at one side of the first connecting portion 331 and protrudes out of the opening of the first fixing portion 12a, so that the first end 401 is conveniently mounted on the second connecting portion 332. The third connecting portion 333 is disposed on a side of the first connecting portion 331 away from the first connecting member 31, and is disposed adjacent to the second connecting portion 332, i.e., the first accommodating slot 3310, the second connecting portion 332, and the third connecting portion 333 are disposed on different sides of the first connecting portion 331. The first elastic element 34 is sleeved on the third connecting portion 333, so that one end of the first elastic element 34 abuts against one side of the first connecting portion 331 away from the first connecting element 31 and a side wall of the accommodating space 126, i.e. the second fixing portion 12 b. The first mounting member 33 can be better assembled with the first connecting member 31, the memory alloy member 40, and the first elastic member 34 by the above-described design.

Alternatively, the second fixing portion 12b may be provided with a fourth through hole 128, and the third connecting portion 333 may be inserted into the fourth through hole 128, so that when the memory alloy member 40 is contracted, the first mounting member 33 can be slid in a direction away from the second connecting member 32, and the second fixing portion 12b is prevented from interfering with the third connecting portion 333.

The above mentioned references that the first connector 31 and the second connector 32 are detachably connected. Three specific embodiments are provided. Referring to fig. 24, fig. 24 is an exploded view of a connecting assembly according to an embodiment of the present disclosure. In this embodiment, the connection assembly 30 further includes a bonding member 35, a surface of the first connection member 31 close to the second connection member 32 is a first surface 310, a surface of the second connection member 32 close to the first connection member 31 is a second surface 320, and the bonding member 35 is disposed on at least one of the first surface 310 and the second surface 320, so that the first connection member 31 can be detachably connected to the second connection member 32.

In the first embodiment, the surface of the first connecting member 31 adjacent to the second connecting member 32 can be understood as the first surface 310, and similarly, the surface of the second connecting member 32 adjacent to the first connecting member 31 can be understood as the second surface 320. The connecting assembly 30 may further include an adhesive member 35, and the adhesive member 35 may be provided on at least one of the first surface 310 and the second surface 320, specifically, the adhesive member 35 may be provided on the first surface 310 alone, or the adhesive member 35 may be provided on the second surface 320 alone, or the adhesive member 35 may be provided on both the first surface 310 and the second surface 320. The present embodiment is schematically illustrated only by the adhesive 35 being disposed on both the first surface 310 and the second surface 320.

The present embodiment bonds the first connecting member 31 and the second connecting member 32 together using the adhesiveness of the bonding member 35. And the first connecting member 31 can be separated from the second connecting member 32 when the lock gear 1 is in the dead lock state to protect the memory alloy member 40. And the first adhesive member 35 is re-attachable to the second coupling member 32 when the first coupling member 31 is extended.

Referring to fig. 25, fig. 25 is an exploded view of a connecting assembly according to another embodiment of the present disclosure. In this embodiment, the first connecting element 31 is provided with a first fastening portion 311, the second connecting element 32 is provided with a second fastening portion 321, and the first fastening portion 311 and the second fastening portion 321 are engaged with each other to enable the first connecting element 31 to be detachably connected to the second connecting element 32.

In the second embodiment, a first locking portion 311 may be disposed on the first connecting element 31, and a second locking portion 321 may be disposed on the second connecting element 32, and in this embodiment, the first locking portion 311 and the second locking portion 321 may be engaged with each other, so as to connect the first connecting element 31 and the second connecting element 32 together. And when the locking mechanism 1 is in the locked state, the first buckling part 311 and the second buckling part 321 can be separated to separate the first connecting piece 31 and the second connecting piece 32, so as to protect the memory alloy piece 40. Meanwhile, when the first connecting member 31 is extended, the first locking portion 311 and the second locking portion 321 can be locked together again.

Referring to fig. 26, fig. 26 is an exploded view of a connecting assembly according to another embodiment of the present application. In this embodiment, the first connecting member 31 and the second connecting member 32 are both magnetic, and the first connecting member 31 and the second connecting member 32 attract each other. When the memory alloy piece 40 contracts, the first connecting piece 31 can be driven to be separated from the second connecting piece 32; when the memory alloy member 40 is elongated, the first connecting member 31 and the second connecting member 32 are attracted to each other, so that the first connecting member 31 moves in a direction close to the second connecting member 32 and the first connecting member 31 is magnetically connected with the second connecting member 32.

In the third embodiment, the first connecting member 31 and the second connecting member 32 do not need to be provided with any component, but only the first connecting member 31 and the second connecting member 32 need to have magnetism, and the first connecting member 31 and the second connecting member 32 attract each other. Specifically, the side of the first connection member 31 close to the second connection member 32 is one of the N pole and the S pole. The side of the second connecting member 32 close to the first connecting member 31 is the other of the N pole and the S pole. This makes it possible to connect the first connecting member 31 and the second connecting member 32 by attracting the N pole and the S pole to each other. The contraction of the memory alloy member 40 when the locking mechanism 1 is in the jammed state can bring the magnetically coupled first coupling member 31 and the second coupling member 32 apart. When the memory alloy member 40 is elongated, the first connecting member 31 can move in a direction close to the second connecting member 32 automatically and magnetically connect the first connecting member 31 to the second connecting member 32 because the first connecting member 31 and the second connecting member 32 have the attraction capability.

It should be noted that the first elastic member 34 is necessary in the first embodiment and the second embodiment, that is, the first elastic member 34 must be used to extend the first connecting member 31 and then the first connecting member 31 and the second connecting member 32 must be replaced. But the first elastic member 34 is not necessarily required in the third embodiment. The first connecting member 31 and the second connecting member 32 can be magnetically attracted to each other, and when the memory alloy member 40 is elongated to its original length, the first connecting member 31 can automatically move toward the second connecting member 32, so that the first connecting member 31 and the second connecting member 32 are magnetically connected together again. However, if the first elastic member 34 is added, the first connecting member 31 can be further urged to move toward the second connecting member 32, so as to reduce the difficulty of sliding the first connecting member 31.

Referring to fig. 27-29, fig. 27 is a schematic view illustrating a locking member, a third fixing member, a second mounting member, and a second connecting member according to an embodiment of the present disclosure. FIG. 28 is a view of the locking member, second mounting member, and second connecting member of FIG. 27 in combination. FIG. 29 is an exploded view of the locking member, the third fixing member, the second mounting member and the second connecting member of FIG. 27. In this embodiment, the connecting assembly 30 further includes a second mounting member 36, the third fixing member 12 has a receiving space 126, at least a portion of the first connecting member 31, at least a portion of the second connecting member 32, and at least a portion of the second mounting member 36 are disposed in the receiving space 126, one side of the second mounting member 36 has a second receiving groove 360, the second connecting member 32 is disposed in the second receiving groove 360, the second connecting member 32 is slidably connected to the third fixing member 12, and the locking assembly 20 penetrates through a sidewall of the receiving space 126 and is connected to the other side of the second mounting member 36.

The third fixing member 12 of the fixing assembly 10 has been described in detail above, and the description of the embodiment is omitted here. The connecting assembly 30 may include a second mounting member 36 in addition to the first and second connecting

members

31 and 32. Wherein the second mounting member 36 is adapted to mount the second connector 32. In this embodiment, a second receiving groove 360 may be formed on a side of the second mounting member 36 close to the first connecting member 31, and at least a portion of the second connecting member 32 may be disposed in the second receiving groove 360. While the second connector 32 is slidably connected to the third attachment member 12. The third fixing member 12 not only provides the function of installing the connecting assembly 30, but also provides the function of slidably guiding and positioning the second connecting member 32.

In addition, for the locking assembly 20, the locking member 21 may penetrate through the sidewall of the receiving space 126, i.e. the fourth plate 124, and be connected to the other side of the second mounting member 36. Alternatively, a fifth through hole 361 may be formed in the second mounting member 36 and the locking member 21, and a pin 362 may be used to detachably couple the locking member 21 and the second mounting member 36. Further alternatively, the second mounting element 36 may be provided with a recess, and the end of the locking element 21 may be disposed in the recess, which may reduce the thickness of the locking element 21 when it is engaged with the second mounting element 36. The present embodiment may facilitate the assembly of the second connector 32 with the locking member 21 using the second mounting member 36 provided as described above.

Alternatively, the second connector 32 may be adhered to the second mounting member 36.

Please refer to fig. 30-31, fig. 30 is a schematic diagram illustrating a locking member and a first fixing member according to an embodiment of the present application. Fig. 31 is an exploded view of the locking member and the first fixing member shown in fig. 30. In this embodiment, the fixing element 10 has a sliding space 111, and the locking element 20 penetrates through the sliding space 111 and is connected to the first end 401.

The locking mechanism 1 has a sliding state when the locking assembly 20 slides relative to the fixing assembly 10, and when the locking mechanism 1 is in the sliding state, the memory alloy member 40 contracts to drive the locking assembly 20 to slide relative to the fixing assembly 10, so that at least a portion of the locking assembly 20 is contracted in the sliding space 111.

The first fixing member 11 may be provided with a sliding hole, i.e., a sliding space 111, penetrating through opposite sides of the first fixing member 11. The locking member 21 includes a locking tongue 210 and a fourth connecting portion 211 connected to each other. The latch 210 is used for connecting with the second housing 52, and the fourth connecting portion 211 is used for connecting with the second connecting member 32. Specifically, the fourth connecting portion 211 penetrates through the sliding space 111 of the first fixing member 11, and also penetrates through the third through hole 127 of the fourth plate 124 to connect with the second connecting member 32, thereby connecting the first end 401.

As can be seen from the above, when the locking mechanism 1 is not in the locked state, the locking member 21 can slide relative to the first fixing member 11, and the locking mechanism 1 is in the sliding state. When the memory alloy part 40 is powered on, the memory alloy part 40 contracts to drive the first connecting part 31 to slide, and because the first connecting part 31 is connected with the second connecting part 32 and the locking mechanism 1 is not in a clamping state, the first connecting part 31 can drive the second connecting part 32 to synchronously slide, so that the locking part 21 is driven to slide relative to the first fixing part 11, the bolt 210 of the locking part 21 is separated from the second shell 52 to realize unlocking, and at least part of the bolt 210 is contracted in the sliding space 111 of the first fixing part 11. Therefore, the present embodiment can utilize the sliding space 111 to provide guiding and positioning functions for the locking member 21 when the locking member 21 can slide.

Optionally, the locking tongue 210 and the fourth connecting portion 211 may be an integrated structure or a split structure, and this embodiment is not limited herein.

Please refer to fig. 32-33, fig. 32 is an exploded view of a locking member, a first fixing member, and a second elastic member according to an embodiment of the present application. FIG. 33 is a cross-sectional view of the locking member, the first fixing member, and the second elastic member of FIG. 32 according to an embodiment of the present application. In this embodiment, the locking assembly 20 further includes a locking member 21 and a second elastic member 22 connected to the locking member 21, the locking member 21 includes a latch 210 and a fourth connecting portion 211 connected to the latch 210, the second elastic member 22 is sleeved on the fourth connecting portion 211, and two opposite ends of the second elastic member 22 respectively abut against the latch 210 and the side wall of the sliding space 111.

Wherein, when the locking mechanism 1 is in the sliding state and at least a part of the bolt 210 is retracted in the sliding space 111, the second elastic member 22 is in a compressed state; the memory alloy member 40 can match the second elastic member 22 in a compressed state when being extended, so that at least a part of the latch 210 extends out of the sliding space 111.

The locking assembly 20 may further include a second elastic member 22 besides the locking member 21, and the second elastic member 22 may be sleeved on the fourth connecting member, so that opposite ends of the second elastic member 22 respectively support the latch 210 and the side wall of the sliding space 111. It should be noted that the following references to abutting in this embodiment and the following description mean that only contacting is required, and how to abut specifically may be abutting, may also be fixed connection, may also be adhesion, and the like.

When the locking mechanism 1 is in the sliding state and the memory alloy member 40 is contracted, the first connecting member 31, the second connecting member 32 and the locking member 21 can be driven to slide, the second elastic member 22 can be compressed in the sliding process of the locking member 21, so that the second elastic member 22 is in the compressed state, and at this time, the second elastic member 22 has a tendency of recovering and providing a reverse elastic force to the latch 210, but the locking member 21 cannot move because the locking member 21 is pulled by the contracted memory alloy member 40 all the time. However, when the memory alloy member 40 is powered off, the memory alloy member 40 extends to its original length, and the length of the memory alloy member 40 increases, so that the locking member 21 cannot be pulled any more, and the locking member 21 can slide in the opposite direction under the elastic force provided by the second elastic member 22, so that at least a portion of the latch 210 protrudes from the sliding space 111, and the latch 210 can be connected to the second housing 52 again to achieve the locking function. When the locking member 21 slides in the opposite direction, the first connecting member 31 and the second connecting member 32 are driven to move in a direction approaching the first fixing member 11, and the elongated memory alloy member 40 is pulled to its original shape.

Alternatively, the second resilient member 22 may be in a plurality of states when the memory alloy member 40 is not energized. For example, in one embodiment, the second elastic member 22 is in a balanced state, and in another embodiment, the second elastic member 22 is already in a compressed state, so that the elastic force of the second elastic member 22 can be used to make the locking member 21 strain the memory alloy member 40, so that the memory alloy member 40 is in a pre-strained state, and the memory alloy member 40 can be conveniently contracted after the memory alloy member 40 is electrified.

Referring to fig. 34, fig. 34 is a schematic cross-sectional view of a locking member, a first fixing member, and a second elastic member according to another embodiment of the present application. The inner side wall of the sliding space 111 is provided with a stop portion 112, and the stop portion 112 can abut against the latch 210.

In this embodiment, the inner sidewall of the sliding space 111 is provided with a stop portion 112, and the latch 210 can abut against the stop portion 112 after sliding a certain distance, so that the latch 210 cannot move any more. In this embodiment, the maximum distance that the latch 210 can slide can be effectively controlled by providing the stopper 112.

In addition, after the stop portion 112 is provided, the memory alloy member 40 will abut against the stop portion 112 due to the locking member 21 when the memory alloy member is electrified and contracted, so the above-mentioned jam condition will also occur, at this time, the resistance value of the memory alloy member 40 can be detected in real time, the jam condition can be detected according to the change of the resistance value, the current is reduced to maintain the condition or the power supply is directly cut off.

Referring to fig. 35, fig. 35 is a schematic cross-sectional view illustrating a locking mechanism including two first fixing members, two locking members, and two memory alloy members according to an embodiment of the present application. In this embodiment, the locking mechanism 1 includes two fixing elements 10 and two locking elements 20 that are axially symmetric, the inner sidewall of the sliding space 111 of each fixing element 10 is provided with the stop portion 112, one of the locking elements 20 abuts against one of the stop portions 112 when sliding with respect to one of the fixing elements 10 by a first predetermined distance, and the other of the locking elements 20 abuts against the other of the stop portions 112 when sliding with respect to the other of the fixing elements 10 by a second predetermined distance; wherein the first preset distance is equal to the second preset distance.

The locking mechanism 1 of the present embodiment may include two fixing elements 10, two locking elements 20, two memory alloy elements 40, and two connecting elements 30. The positioning effect on the second housing 52 is further improved by positioning the two components on opposite sides of the second housing 52. Each set of the fixing elements 10 includes a first fixing element 11, each set of the locking elements 20 includes a locking element 21, in other words, the locking mechanism 1 may include two first fixing elements 11 and two locking elements 21, one first fixing element 11 and one locking element 21 are axially symmetric with the other first fixing element 11 and the other locking element 21, and the sliding space 111 of each first fixing element 11 is provided with a stop portion 112. For a first fixing member 11 and a locking member 21, the locking member 21 can slide a first predetermined distance relative to the fixing member to abut against a stop portion 112. For the other first fixing member 11 and the other locking member 21, the other locking member 21 can slide relative to the other fixing member by a second predetermined distance to abut against the other stop portion 112.

Based on this, the present embodiment can make the first preset distance equal to the second preset distance even if the end position where one locking piece 21 slides is the same as the other locking piece 21. Since the initial positions of the two locking members 21 are the same when they are not slid, the present embodiment can slide the two locking members 21 the same distance, in other words, the memory alloy member 40 contracts the same distance, so that the memory member returns to the original length when it is extended, and further the time when the two locking members 21 slide to the initial positions is the same, that is, the time when the two locking members 21 are connected to the second housing 52 is the same, so that the two locking members 21 can be connected to the second housing 52 at the same time, and it is avoided that when one locking member 21 is connected to the second housing 52, the other locking member 21 is not connected to the second housing 52.

Referring to fig. 3-8, fig. 31, fig. 36-fig. 37, fig. 36 is a schematic view of the second housing and the locking mechanism in fig. 4 when locked. Fig. 37 is an exploded partial schematic view of the second housing and locking mechanism of fig. 36. The present embodiment provides a housing assembly 2, comprising a first housing 51, a second housing 52, and a locking mechanism 1 as provided in the above embodiments of the present application, wherein the first housing 51 is slidably connected to the second housing 52, a fixing assembly 10 of the locking mechanism 1 is fixed to the first housing 51, a winding end 403 of the memory alloy member 40 in the locking mechanism 1 is wound to a winding portion 510 of the first housing 51, and the second end 402 is fixed to the first housing 51; the locking assembly 20 of the locking mechanism 1 is provided with a first locking portion 212, and the second housing 52 is provided with at least one second locking portion 520.

The housing assembly 2 has a sliding state when the locking assembly 20 slides relative to the fixing assembly 10, and when the housing assembly 2 is in the sliding state, the housing assembly 2 has a locking state when the first locking portion 212 is connected to the second locking portion 520, and an unlocking state when the first locking portion 212 is separated from the second locking portion 520.

The housing assembly 2 provided in the present embodiment can be applied to various fields, for example, the field of the electronic device 3 and the like, the field of a vehicle, the field of machinery, and the like. The present embodiment is only schematically illustrated in the field of application of the housing assembly 2 to the electronic device 3, and the application of the housing assembly 2 to other fields shall also belong to the protection scope of the present application.

The first housing 51 can be understood as the fixed center frame mentioned above, the first housing 51 is generally stationary, and the second housing 52 can be understood as the movable center frame mentioned above. The second housing 52 can slide relative to the first housing 51 by various methods, the first fixing member 11 of the locking mechanism 1 is fixed to the first housing 51, and the second end 402 of the memory alloy member 40 is also fixed to the first housing 51. The locking member 21 of the locking mechanism 1 is provided with a first locking portion 212, and the second housing 52 is provided with at least one second locking portion 520. Alternatively, the first locking portion 212 may be an end portion of the locking tongue 210 in the locking member 21, and the second locking portion 520 may be a locking groove 524 of the second housing 52. For example, one side of the second housing 52 close to the locking mechanism 1 is provided with a positioning bar 521, the positioning bar 521 is provided with a positioning slot 522, the locking mechanism 1 further includes a stopper 523, the stopper 523 is disposed in the positioning slot 522, so that the stopper 523 and the positioning bar 521 can enclose to form a locking slot 524. And the sliding direction of the locking member 21 is perpendicular to the sliding direction of the second housing 52, the unlocking and locking of the housing assembly 2 can be realized by the mutual cooperation of the first locking portion 212 and the second locking portion 520. The location for the locking can be set according to user requirements or programming. For example, the locked position can be set according to the video scale and the game scale.

Specifically, the latch 210 is inserted into the locking groove 524 when the memory alloy member 40 is not energized, thereby fixing the second housing 52 so that it cannot move. When the housing assembly 2 is in a normal sliding state, that is, when the friction between the end of the latch 210 and the positioning bar 521 or the stop 523 in the locking groove 524 is small, the memory alloy member 40 is powered on to contract the memory alloy member 40, and the memory alloy member 40 can drive the locking member 21 to synchronously slide backwards, so that the first locking portion 212 is separated from the second locking portion 520, that is, the latch 210 is disposed outside the locking groove 524, so that the second housing 52 can slide relative to the first housing 51 because the second housing 52 is no longer limited by the locking member 21 in the locking mechanism 1. The state at this time can be understood as the unlocked state.

When the second housing 52 needs to be locked or the second housing 52 slides to the locked position, the power of the memory alloy element 40 can be cut off to extend the memory alloy element 40 to the original length, and at the same time, the locking element 21 slides forward, so that the first locking portion 212 of the locking element 21 is reconnected to the second locking portion 520 on the second housing 52, even if the latch 210 is relocated in the locking groove 524, the second housing 52 is fixed by the latch 210, and the locking function is realized. The state at this time can be understood as the locked state.

The housing assembly 2 provided in the present embodiment not only can achieve the locking function by using the locking mechanism 1 provided in the above embodiments of the present application, but also can fix the first housing 51 and the second housing 52 to the second housing 52 when the first housing 51 and the second housing 52 need to be locked. In addition, the effective length of the memory alloy part 40 can be increased under the condition of limited space of the whole machine, and the problem that the length of the memory alloy part 40 is not enough is solved. The slidable distance of the locking member 21 is increased, the difficulty of locking and unlocking the locking member 21 and the second shell 52 is reduced, and the service life of the memory alloy member 40 is prolonged.

Referring to fig. 37 again, in the present embodiment, when the second housing 52 is provided with a plurality of second locking portions 520, an arrangement direction of the plurality of second locking portions 520 is parallel to a sliding direction of the second housing 52 relative to the first housing 51.

When there is only one second locking portion 520 on the second housing 52, the first locking portion 212 on the locking member 21 can only be connected to the second locking portion 520, so as to position the second housing 52. In other words, the second housing 52 can only be locked when the first locking portion 212 is corresponding to the second locking portion 520, i.e., the second housing 52 has only one locked position.

When the second housing 52 is provided with a plurality of second locking portions 520, and the arrangement direction of the plurality of second locking portions 520 is parallel to the sliding direction of the second housing 52 relative to the first housing 51, the plurality of second locking portions 520 can be located at different positions of the second housing 52 along the sliding direction of the second housing 52, so that the second housing 52 can be correctly corresponding to the first locking portions 212 at a plurality of positions, thereby realizing the locking function. In other words, the housing assembly 2 provided by this embodiment can realize multi-stage locking by providing the plurality of second locking portions 520 on the second housing 52, so that the second housing 52 can be locked at a plurality of positions in the sliding process, and the housing assembly 2 has a plurality of different sizes and can be adjusted, thereby meeting diversified requirements of users.

Referring to fig. 38, fig. 38 is a partial schematic view of a first housing according to an embodiment of the present disclosure. In the present embodiment, at least a part of the outer peripheral side of the winding portion 510 has a stopper groove 511, and at least a part of the winding end 403 is provided in the stopper groove 511. In this embodiment, the circumferential surface of the winding portion 510 may be provided with a limiting groove 511, and the winding end 403 may be disposed in the limiting groove 511, so that the winding end 403 of the memory alloy element 40 may be prevented from sliding along the axial direction of the winding portion 510 when the limiting groove 511 contracts or extends, or when the housing assembly 2 falls or collides, thereby improving the positioning effect of the memory alloy element 40.

Referring to fig. 39, fig. 39 is a partial schematic view of a first housing according to an embodiment of the present disclosure. In this embodiment, the first housing 51 is provided with a bearing portion 512, one side of the bearing portion 512 is provided with the winding portion 510, and an outer peripheral edge of one end of the winding portion 510, which is away from the bearing portion 512, is provided with a limiting portion 513 in a protruding manner. In this embodiment, a circle of limiting portion 513 may be convexly disposed at an end of the winding portion 510 away from the bearing portion 512, and the limiting portion 513 may be used to abut against and limit the winding end 403. If the winding end 403 slides in the axial direction of the winding part 510, the stopper 513 can be used to prevent the winding end 403 from separating from the winding part 510, so that the memory alloy element 40 fails, and the connection effect between the memory alloy element 40 and the winding part 510 is improved.

Please refer to fig. 40-41 together, and fig. 40 is a schematic perspective view of an electronic device according to an embodiment of the present application. Fig. 41 is a partially exploded view of the electronic device shown in fig. 40. The embodiment provides an electronic device 3, which includes a processor, a power supply module, and a housing assembly 2 as provided in the above embodiments of the present application, wherein the processor is electrically connected to the power supply module, the power supply module is electrically connected to a memory alloy piece 40 in the housing assembly 2, and the processor is configured to control the power supply module to power on or off the memory alloy piece 40, so as to enable the memory alloy piece 40 to contract or extend.

When the memory alloy piece 40 is electrified, the memory alloy piece 40 contracts so as to separate the first locking part 212 from the second locking part 520; when the memory alloy piece 40 is powered off, the memory alloy piece 40 stretches, so that the first locking part 212 is connected with the second locking part 520.

The electronic device 3 provided in the present embodiment includes, but is not limited to, a mobile terminal such as a mobile phone, a tablet Computer, a notebook Computer, a palmtop Computer, a Personal Computer (PC), a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, and a pedometer, and a fixed terminal such as a Digital TV and a desktop Computer. In the present embodiment, the type of the electronic device 3 is not limited. The present embodiment is only schematically described with the electronic device 3 being a roll-type electronic device 3.

The electronic device 3 comprises a processor, the housing assembly 2 provided by the above embodiments, and a flexible screen 60. One end of the flexible screen 60 is fixedly disposed on one side of the first casing 51, and the other end of the flexible screen 60 extends from the first casing 51 to one side of the second casing 52, and then winds from one end of the second casing 52 far away from the first casing 51 to the other side of the second casing 52. In this way, when the second casing 52 slides relative to the first casing 52, for example, when the second casing 52 is unfolded relative to the first casing 51, at least a part of the flexible screen 60 disposed on the other side of the second casing 52 can be rotated to one side of the flexible screen 60, so that the size of the electronic device 3 can be increased, and the area of the exposed flexible screen 60 can be increased, thereby increasing the display area. When the second housing 52 is retracted relative to the first housing 51, the exposed portion of the flexible screen 60 can be rotated to hide the other side of the flexible screen 60, so as to reduce the size of the electronic device 3, reduce the area of the exposed flexible screen 60, and reduce the display surface.

Optionally, the electronic device 3 further includes a driving member electrically connected to the processor, and the driving member can drive the second housing 52 to slide relative to the first housing 51 under the control of the processor. In this embodiment, the driving member can be additionally provided, the processor drives the driving member to move, and the driving member controls the second housing 52 to slide relative to the first housing 51.

In the present embodiment, the size of the electronic device 3 is changed by adopting the above-described structure, and the display area is changed, and the lock mechanism 1 is used to position the second housing 52 to implement the lock function, thereby maintaining the stability of the electronic device 3.

Specifically, the latch 210 is inserted into the locking groove 524 when the memory alloy member 40 is not energized, thereby fixing the second housing 52 so that it cannot move. The electronic device 3 has a fixed display area at this time. When the housing assembly 2 is in a normal sliding state, i.e. when the friction between the end of the latch 210 and the positioning bar 521 or the stopper 523 in the locking groove 524 is small, the processor controls to energize the memory alloy 40 to contract the memory alloy 40, so that the memory alloy 40 can drive the locking member 21 to synchronously slide backwards, so that the first locking portion 212 is separated from the second locking portion 520, i.e. the latch 210 is disposed outside the locking groove 524, and thus the second housing 52 can slide relative to the first housing 51 because the second housing 52 is no longer limited by the locking member 21 in the locking mechanism 1. The state at this time can be understood as the unlocked state. The processor then controls the driving member to work, and the driving member can drive the second housing 52 to slide relative to the first housing 51. For example, the driving member may drive the second housing 52 to expand relative to the first housing 51 so as to increase the size and display area of the electronic device 3, or the driving member may drive the second housing 52 to contract relative to the first housing 51 so as to decrease the size and display area of the electronic device 3.

When the second housing 52 needs to be locked or the second housing 52 slides to the locked position, the power of the memory alloy element 40 can be cut off to extend the memory alloy element 40 to the original length, and at the same time, the locking element 21 slides forward, so that the first locking portion 212 of the locking element 21 is reconnected to the second locking portion 520 on the second housing 52, even if the latch 210 is relocated in the locking groove 524, the second housing 52 is fixed by the latch 210, and the locking function is realized. The state can be understood as a locked state, and the second housing 52 can no longer slide, so that the electronic device 3 is in a stable state, and the display area is stable, so that the user can perform corresponding operations using the display area with the specific size.

In the electronic device 3 provided by the present embodiment, by using the housing assembly 2 provided by the above embodiments of the present application, not only the locking function can be achieved, but also the first housing 51 and the second housing 52 can be fixed to the second housing 52 when needing to be locked. In addition, the effective length of the memory alloy member 40 can be increased, the slidable distance of the locking member 21 can be increased, the difficulty in locking and unlocking the locking member 21 and the second housing 52 can be reduced, and the service life of the memory alloy member 40 can be prolonged.

The electronic device 3 may comprise, in addition to the above-mentioned components, a stroke detection means 70 electrically connected to the processor. A distance sensor in which a stroke detection means 70 is used to detect the position at which the second housing 52 slides with respect to the first housing 51. In other words, the stroke detecting device 70 can detect the sliding distance of the second housing 52. Two specific embodiments are provided herein, with the travel detection device 70 enabling the processor to know when the locking mechanism 1 should be controlled to lock.

Referring to fig. 40 to fig. 41 again, in this embodiment, the electronic device 3 further includes a stroke detection device 70 electrically connected to the processor, and the stroke detection device 70 is configured to detect a position at which the second housing 52 slides relative to the first housing 51.

When the second housing 52 slides to a locking position relative to the first housing 51, the first locking portion 212 is opposite to the second locking portion 520, the stroke detection device 70 detects the position of the second housing 52 relative to the first housing 51 and sends a position signal to the processor, the processor receives the position signal and controls the memory alloy element 40 to be powered off, and the memory alloy element 40 extends to connect the first locking portion 212 with the second locking portion 520.

In the first embodiment, the second housing 52 is slidable relative to the first housing 51 when the electronic device 3 is in a normal sliding state, and the position of the second locking portion 520 relative to the first locking portion 212 changes during the sliding process. When the second housing 52 slides to the lock position with respect to the first housing 51, that is, the second lock portion 520 slides to face the corresponding first lock portion 212, the stroke detecting device 70 detects the position at which the second housing 52 moves with respect to the first housing 51, and sends a position signal to the processor. The processor receiving this signal will then indicate that the position of the second housing 52 needs to be fixed. The processor can therefore send a signal to the drive member to deactivate the drive member, i.e. the second housing 52 does not move relative to the first housing 51. Meanwhile, the processor sends a signal to the memory alloy member 40 to power off the memory alloy member 40 to restore the memory alloy member 40 to the original length, and at the same time, the first locking portion 212 on the locking member 21 moves towards the direction close to the second locking portion, and finally the first locking portion 212 is connected with the second locking portion 520, so that the first shell 51 and the second shell 52 are relatively positioned.

In summary, in the present embodiment, the locking mechanism 1 is operated when the first locking portion 212 is corresponding to the second locking portion 520, so that the first locking portion 212 is accurately connected to the second locking portion 520 to realize the locking function.

Referring to fig. 40 to fig. 41 again, in this embodiment, the electronic device 3 further includes a stroke detection device 70 electrically connected to the processor, where the stroke detection device 70 is configured to detect a position where the second housing 52 slides relative to the first housing 51;

when the second housing 52 is not slid to the locking position relative to the first housing 51, the stroke detection device 70 is configured to detect the position of the second housing 52 relative to the first housing 51, and calculate the sliding time required for the second housing 52 to slide to the locking position relative to the first housing 51, and the stroke detection device 70 sends a position signal and the sliding time to the processor, the processor receives the position signal and the sliding time and controls the memory alloy piece 40 to be powered off in advance, and the memory alloy piece 40 extends to enable the first locking portion 212 to abut against the second housing 52;

meanwhile, the second housing 52 continues to slide relative to the first housing 51 until the first locking portion 212 is connected to the second locking portion 520 when the first locking portion 212 is opposite to the second locking portion 520.

In the second embodiment, the second housing 52 can slide relative to the first housing 51 when the electronic device 3 is in the normal sliding state, and the position of the second locking portion 520 relative to the first locking portion 212 changes during the sliding process. Since the response time of the memory alloy member 40 is fast in contraction when energized, but requires a long cooling time when de-energized, the response time is relatively slow. Therefore, when the second housing 52 does not slide to the locking position relative to the first housing 51, i.e. the second locking portion 520 does not correspond to the first locking position, and the second locking portion 520 needs to slide a distance to correspond to the first locking portion 212, the stroke detecting device 70 can detect the position of the second housing 52 relative to the first housing 51, and calculate the time required for the second housing 52 to move to the locking position relative to the first housing 51, i.e. the time required for the second locking portion 520 to move to correspond to the first locking portion 212. At this time, the stroke detection device 70 sends a position signal to the processor, the processor receives the position signal and controls the memory alloy member 40 to power off in advance, and the memory alloy member 40 gradually extends, so that the first locking portion 212 on the locking member 21 gradually slides toward the direction approaching the second locking portion 520 until the first locking portion 212 abuts against the second housing 52, i.e., the stopper 523. At this time, the second locking portion 520 still does not move to the position corresponding to the first locking portion 212, and then the second housing 52 continues to move relative to the first housing 51, when the second housing 52 moves to the position to be locked, that is, the second locking portion 520 corresponds to the first locking portion 212, the second locking portion 520 can automatically connect with the first locking portion 212, so that the first housing 51 and the second housing 52 are relatively positioned.

In summary, the present embodiment provides a method for operating the locking mechanism 1 in advance when the second housing 52 has not slid to the position to be locked, so that the first locking portion 212 can automatically connect to the second locking portion 520 when the second housing 52 slides to the position to be locked, thereby saving the time for the first locking portion 212 to move to the second locking portion 520, increasing the response time for locking the locking mechanism 1, and reducing the time for locking the electronic device 3.

The utility model provides an electronic equipment 3's treater control driving piece drive second casing 52 slides for first casing 51 to realize the automatic expansion or the shrink of casing, flexible screen 60 realizes automatic expansion or curling along with second casing 52, and convenient to use can increase the display surface of flexible screen 60 after the expansion, and convenience of customers uses, can make electronic equipment 3's volume reduce and convenience of customers carries after curling. In addition, after the second casing 52 is unfolded relative to the first casing 51, the locking mechanism 1 automatically locks to prevent the second casing 52 from moving relative to the first casing 51, so that the second casing 52 can be prevented from moving relative to the first casing 51 when the electronic device 3 falls, the whole electronic device 3 can be effectively protected, and the flexible screen 60 can be effectively prevented from being damaged and the mechanism inside the casing can be prevented from being damaged. Secondly, the locking mechanism 1 realizes automatic unlocking or power failure through the energization of the memory alloy piece 40 to realize automatic locking, has simple logic, can realize multi-stage locking or unlocking, has larger energy density, driving strain and driving stress of the memory alloy piece 40, and has low driving voltage required by the memory alloy piece 40 and easy acquisition. In addition, the locking mechanism 1 has the advantages of light weight, small volume, small occupied inner space of the shell and convenience for layout of other elements. In addition, the winding end 403 of the memory alloy piece 40 is wound on the winding part 510 of the first shell 51 to change the extending direction of the memory alloy piece 40, so that the effective length of the memory alloy piece 40 is increased, the sliding distance of the locking piece 21 is increased, and the service life of the memory alloy piece 40 is prolonged.

The foregoing detailed description has provided for the embodiments of the present application, and the principles and embodiments of the present application have been presented herein for purposes of illustration and description only and to facilitate understanding of the methods and their core concepts; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A locking mechanism for use with a housing assembly comprising a first housing and a second housing, the second housing being slidable relative to the first housing, the locking mechanism comprising:

a securing assembly for securing to the first housing;

the locking assembly is arranged on the fixing assembly in a sliding mode and used for locking the second shell or being separated from the second shell; and

the memory alloy piece can contract and extend by supplying power to change the length of the memory alloy piece, the memory alloy piece comprises a first end and a second end which are arranged oppositely, and at least one winding end arranged between the first end and the second end, the first end is connected with the locking assembly, the second end is used for being fixed to the first shell, and the winding end is used for being wound on a winding part of the first shell to change the extending direction of the memory alloy piece;

the length of the memory alloy piece can be reduced by electrifying to contract, so that the locking assembly is driven to slide along the direction close to the winding part, and the locking assembly is separated from the second shell; the memory alloy piece can also drive the locking assembly to slide along the direction far away from the winding part through power-off extension length, so that the locking assembly locks the second shell.

2. The locking mechanism of claim 1, wherein said memory alloy member further comprises a first portion and a second portion extending oppositely from said first portion, the connection of said first portion to said second portion being said wound end of said memory alloy member.

3. The locking mechanism of claim 2, wherein a length of the first portion is equal to a length of the second portion in a direction of extension of the first portion.

4. The locking mechanism of claim 2, wherein said member includes a plurality of said wrapping ends, said member further including at least one third portion, each of said third portions having opposite ends connected to a respective one of said wrapping ends.

5. The locking mechanism of claim 1, wherein a width of the memory alloy member perpendicular to an extension direction of the memory alloy member is less than or equal to an overall width of the securing assembly when the securing assembly is mated with the locking assembly.

6. The locking mechanism of claim 1, wherein the fixing member includes a clip member and a second fixing member, the second fixing member is used for fixing a second end of the memory alloy member to the first housing, the second fixing member has a receiving hole, the clip member is clipped on an outer peripheral side of the second fixing member and is exposed through the receiving hole, the memory alloy member penetrates through the second fixing member through the receiving hole, and the second end is connected to the clip member.

7. The locking mechanism of claim 1, further comprising a connecting member having one end connected to a first end of the memory alloy member and an opposite end connected to the locking member.

8. The locking mechanism of claim 7, wherein said memory alloy member further includes a first portion connected between said first end and said wrapping end, said first end having an attachment surface connected to said connecting assembly, said attachment surface having a height greater than a height of said first portion in a direction perpendicular to an extension of said memory alloy member.

9. The locking mechanism of claim 8, wherein the first end and the connecting assembly are coupled in a limiting manner by a limiting block and a limiting hole; wherein, the stopper is located first end with one in the coupling assembling, spacing hole is located first end with another one in the coupling assembling.

10. The locking mechanism of claim 7, wherein the connecting member includes a first connecting member and a second connecting member detachably connected to one end of the first connecting member, the opposite end of the first connecting member being fixedly connected to the first end, and an end of the second connecting member remote from the first connecting member being disposed on the locking assembly;

when the locking assembly is fixed relative to the fixing assembly and the memory alloy piece is in a contraction state, the memory alloy piece can drive the first connecting piece to be separated from the second connecting piece and drive the first connecting piece to move in a direction away from the second connecting piece.

11. The locking mechanism of claim 10, wherein the securing assembly includes a first securing member and a third securing member spaced apart from the first securing member, the locking assembly is slidably coupled to the first securing member and the third securing member, and the first connecting member and the second connecting member are disposed on the third securing member.

12. The locking mechanism of claim 11, wherein the connecting assembly further comprises a first mounting member and a first resilient member, the first mounting member being connected to the first connecting member and the first end, opposite ends of the first resilient member respectively abutting the first mounting member and the third securing member to slidably connect the first connecting member to the third securing member;

when the memory alloy part contracts, the first connecting piece and the first mounting piece can be driven to move along the direction away from the second connecting piece, and the first elastic piece is in a compressed state; when the memory alloy part extends, the memory alloy part is matched with the first elastic part in a compressed state, so that the first connecting part and the first mounting part move along the direction close to the second connecting part, and the first connecting part is connected with the second connecting part.

13. The locking mechanism of claim 12, wherein the first mounting member includes a first connecting portion, a second connecting portion, and a third connecting portion, the first connecting portion has a first receiving slot, the first connecting member is mounted in the first receiving slot, the second connecting portion is disposed on a slot wall of the first receiving slot of the first connecting portion, the first end is connected to the second connecting portion, the third connecting portion is disposed on a side of the first connecting portion facing away from the first connecting member, the first elastic member is sleeved on the third connecting portion, and opposite ends of the first elastic member respectively abut against a side of the first connecting portion facing away from the first connecting member and a side wall of the third fixing member.

14. The locking mechanism of claim 12, wherein the coupling assembly further comprises an adhesive member, wherein the surface of the first coupling member adjacent to the second coupling member is a first surface and the surface of the second coupling member adjacent to the first coupling member is a second surface, and wherein the adhesive member is disposed on at least one of the first surface and the second surface to detachably couple the first coupling member to the second coupling member.

15. The locking mechanism of claim 12, wherein said first connecting member is provided with a first catch and said second connecting member is provided with a second catch, said first catch and said second catch cooperating to allow said first connecting member to releasably engage said second connecting member.

16. The locking mechanism of claim 10, wherein the first and second connectors are magnetic and attract each other;

when the memory alloy piece contracts, the first connecting piece and the second connecting piece can be driven to be separated; when the memory alloy piece extends, the first connecting piece and the second connecting piece attract each other, so that the first connecting piece moves along the direction close to the second connecting piece and the first connecting piece is magnetically connected with the second connecting piece.

17. The locking mechanism of claim 11, wherein the connecting assembly further comprises a second mounting member, the third mounting member has a receiving space, at least a portion of the first connecting member, at least a portion of the second connecting member, and at least a portion of the second mounting member are disposed in the receiving space, one side of the second mounting member has a second receiving groove, the second connecting member is disposed in the second receiving groove, the second connecting member is slidably coupled to the third mounting member, and the locking assembly extends through a sidewall of the receiving space and is coupled to the other side of the second mounting member.

18. The locking mechanism of any one of claims 1-6, wherein the securing element has a sliding space, and the locking element extends through the sliding space and is coupled to the first end;

when the locking mechanism is in the sliding state, the memory alloy piece contracts to drive the locking assembly to slide relative to the fixing assembly, so that at least part of the locking assembly is contracted in the sliding space.

19. The locking mechanism of claim 18, wherein the locking assembly further comprises a locking member and a second elastic member connected to the locking member, the locking member comprises a latch and a fourth connecting portion connected to the latch, at least a portion of the second elastic member is disposed in the sliding space, the second elastic member is sleeved on the fourth connecting portion, and opposite ends of the second elastic member respectively abut against the latch and a sidewall of the sliding space;

wherein when the locking mechanism is in the sliding state and at least part of the bolt is retracted in the sliding space, the second elastic element is in a compressed state; when the memory alloy piece extends, the memory alloy piece can be matched with the second elastic piece in a compressed state to enable at least part of the lock tongue to extend out of the sliding space.

20. The lock mechanism of claim 18, wherein a stop is provided on an inner side wall of the sliding space, the stop being capable of abutting the latch.

21. The locking mechanism of claim 20, wherein the locking mechanism comprises two fixing elements and two locking elements, the two fixing elements and the two locking elements are axially symmetrical, the inner wall of the sliding space of each fixing element is provided with the stopping portion, one of the locking elements abuts against one of the stopping portions when sliding relative to one of the fixing elements for a first preset distance, and the other of the locking elements abuts against the other of the stopping portions when sliding relative to the other of the fixing elements for a second preset distance; wherein the first preset distance is equal to the second preset distance.

22. A housing assembly comprising a first housing, a second housing, and the locking mechanism of any one of claims 1-21, the first housing being slidably connected to the second housing, a fixed component of the locking mechanism being secured to the first housing, a wound end of the memory alloy member being wound around a wound portion of the first housing in the locking mechanism, the second end being secured to the first housing; the locking assembly of the locking mechanism is provided with a first locking part, and the second shell is provided with at least one second locking part;

23. The housing assembly of claim 22 wherein at least a portion of an outer peripheral side of the wound portion has a retaining groove, at least a portion of the wound end being disposed in the retaining groove.

24. The housing assembly of claim 22, wherein the first housing has a carrying portion, one side of the carrying portion has the winding portion, and an outer periphery of an end of the winding portion facing away from the carrying portion is protruded with a limiting portion.

25. An electronic device, comprising a processor, a power supply module, and the housing assembly as claimed in any one of claims 22 to 24, wherein the processor is electrically connected to the power supply module, the power supply module is electrically connected to the memory alloy member in the housing assembly, and the processor is configured to control the power supply module to power on or off the memory alloy member to cause the memory alloy member to contract or elongate;

when the memory alloy piece is electrified, the memory alloy piece contracts so that the first locking part is separated from the second locking part; when the power of the memory alloy piece is cut off, the memory alloy piece stretches, so that the first locking part is connected with the second locking part.

26. The electronic device of claim 25, further comprising a travel detection device electrically connected to the processor, the travel detection device for detecting a position at which the second housing slides relative to the first housing;

when the second shell slides to a locking position relative to the first shell, the first locking portion corresponds to the second locking portion, the stroke detection device detects the position of the second shell relative to the first shell and sends a position signal to the processor, the processor receives the position signal and controls the memory alloy piece to be powered off, and the memory alloy piece extends to enable the first locking portion to be connected with the second locking portion.

27. The electronic device of claim 25, further comprising a travel detection device electrically connected to the processor, the travel detection device for detecting a position at which the second housing slides relative to the first housing;

when the second shell does not slide to the locking position relative to the first shell, the stroke detection device is used for detecting the position of the second shell relative to the first shell and calculating the sliding time required for the second shell to slide to the locking position relative to the first shell, the stroke detection device sends a position signal and the sliding time to the processor, the processor receives the position signal and the sliding time and controls the memory alloy piece to be powered off in advance, and the memory alloy piece extends to enable the first locking portion to abut against the second shell;

and meanwhile, the second shell continuously slides relative to the first shell until the first locking part is connected with the second locking part when the first locking part is corresponding to the second locking part.