CN115623103A

CN115623103A - Locking mechanism, shell assembly and electronic equipment

Info

Publication number: CN115623103A
Application number: CN202211219523.6A
Authority: CN
Inventors: 马强; 袁永亮; 陈堃; 沈烈康; 陈永亮; 张海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-01-17
Also published as: WO2024066663A1

Abstract

The application provides a locking mechanism, a shell assembly and an electronic device. The locking mechanism comprises a fixing component, a locking component, a memory alloy piece and a connecting component. The locking component is arranged on the fixing component in a sliding mode. The memory alloy member can be contracted and extended by supplying power to change its length. The connecting assembly comprises a first connecting piece and a second connecting piece which is detachably connected with one end of the first connecting piece, the other end of the first connecting piece is fixedly connected with one end of the memory alloy piece, and one end, far away from the first connecting piece, of the second connecting piece is arranged 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 contract to drive the first connecting piece and the second connecting piece to be separated. The locking mechanism provided by the application not only can realize the locking function, but also can effectively protect the memory alloy piece in a blocking state, and protect the memory alloy piece from being damaged.

Description

Locking mechanism, shell assembly and electronic equipment

Technical Field

The application relates to the technical field of locking mechanisms, in particular 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, such as roll-to-roll electronic devices, folding electronic devices, etc., have been introduced. Taking a roll-type electronic device as an example, the roll-type 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 roll-type electronic device cannot realize the locking function.

Disclosure of Invention

In view of this, a first aspect of the present application provides a lock mechanism comprising:

a fixing component;

the locking assembly is arranged on the fixing assembly in a sliding mode;

the memory alloy piece can be contracted and extended by supplying power to change the length of the memory alloy piece; and

the connecting assembly comprises a first connecting piece and a second connecting piece which is detachably connected with one end of the first connecting piece, the other end, opposite to the first connecting piece, of the first connecting piece is fixedly connected with one end of the memory alloy piece, and one end, far away from the first connecting piece, of the second connecting piece is arranged 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 contract to 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.

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 component may be fixed to the first housing, and when the second housing slides to a position to be locked relative to the first housing, the memory alloy element may be controlled to contract or extend by powering on or powering off, and the length of the memory alloy element may be adjusted to drive the locking component to slide relative to the fixing component to connect the locking component and the second housing, so as to fix the second housing and achieve the locking function.

In addition, the memory alloy piece can be connected with the first connecting piece through the connecting assembly comprising the first connecting piece and the second connecting piece, and the second connecting piece is connected with the locking assembly. Meanwhile, the first connecting piece can be detachably connected with the second connecting piece, in other words, the first connecting piece can be connected with the second connecting piece or separated from the second connecting piece. When the first connecting piece can be connected with the second connecting piece, the memory alloy piece, the first connecting piece, the second connecting piece and the locking component are connected together, and the locking component can be driven to synchronously move by the change of the length of the memory alloy piece. When the first connecting piece can be separated from the second connecting piece, the memory alloy piece cannot drive the locking component to move.

The locking mechanism has a memory alloy piece as mentioned above, which can control the sliding state of the locking component when the locking component slides relative to the fixing component, and a memory alloy piece which can not control the locking state when the locking component moves relative to the fixing component. When the locking mechanism is in a sliding state, the locking assembly slides relative to the fixing assembly so as to realize locking or unlocking. When the locking mechanism is in a locked state due to friction and other reasons, the locking assembly cannot be separated from the second shell to unlock, so that the locking assembly cannot move, namely, the locking assembly is fixed relative to the fixing assembly.

When the locking mechanism is in a blocking state, the locking assembly is fixed, but the memory alloy piece still contracts to reduce the length, so that the memory alloy piece can drive the first connecting piece and the second connecting piece to be separated, and drive the first connecting piece to move in the direction away from the second connecting piece, and the memory alloy piece can normally move. Therefore, the memory alloy piece can be effectively protected, the memory alloy piece can not be separated from the locking component, so that plastic deformation is prevented, the length of the memory alloy piece is prolonged, and the memory alloy piece is prevented from being damaged.

In conclusion, the locking mechanism provided by the application can realize the locking function, and can effectively protect the memory alloy piece in a clamping state and prevent the memory alloy piece from being damaged.

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, wherein the first housing is slidably connected to the second housing, a fixing assembly of the locking mechanism is fixed to the first housing, a locking assembly of the locking mechanism is provided with a first locking portion, and the second housing is provided with at least one second locking portion;

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 needing to be locked. In addition, when the locking assembly is in a locked state due to overlarge friction force between the second shell and the locking assembly or other reasons, the memory alloy piece can be effectively protected from being damaged, and the problem of failure in the locked state is solved.

A third aspect of the present application provides an electronic device, including 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 power on or power off 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 that the first locking part is separated from the second locking part; when the memory alloy part is powered off, the memory alloy part stretches to enable the first locking part to be 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, when the locking assembly is in a locked state due to overlarge friction force between the second shell and the locking assembly or other reasons, the memory alloy piece can be effectively protected from being damaged, and the problem of failure in the locked state is solved.

Drawings

In order to more clearly explain the technical solution 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 a schematic perspective view of the first housing, the second housing, and the locking mechanism shown in fig. 3.

Fig. 6 is an exploded view of the first housing, second housing, and locking mechanism shown in fig. 4.

Fig. 7 is an exploded view of the first housing, second housing, and locking mechanism shown in fig. 5.

Fig. 8 is a schematic perspective view of the memory alloy member in a collapsed state of the locking mechanism shown in fig. 1.

Fig. 9 is a schematic perspective view of a locking mechanism according to another embodiment of the present application.

Fig. 10 is an exploded view of the locking mechanism shown in fig. 9.

Fig. 11 is an exploded view of a second fixing element according to an embodiment of the present application.

Fig. 12 is an exploded view of a second fixing element, a first connecting element and a second connecting element according to an embodiment of the present disclosure.

FIG. 13 is a diagram illustrating the second fixing element, the first connecting element, the memory alloy element, the first mounting element, and the first elastic element according to an embodiment of the present disclosure.

FIG. 14 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. 13.

Fig. 15 is a perspective view of the first mounting member shown in fig. 13.

Fig. 16 is an exploded view of a coupling assembly according to an embodiment of the present application.

Fig. 17 is an exploded view of another embodiment connection assembly of the present application.

Fig. 18 is an exploded view of a connection assembly according to yet another embodiment of the present application.

FIG. 19 is a schematic view of the locking member, the second fixing member, the second mounting member, and the second connecting member according to an embodiment of the present disclosure.

FIG. 20 is a schematic view of the locking member, the second mounting member, and the second connecting member of FIG. 19 engaged with each other.

FIG. 21 is an exploded view of the locking member, the second fixing member, the second mounting member and the second connecting member of FIG. 19.

FIG. 22 is a schematic view of the locking member, the first fixing member, and the second connecting member according to an embodiment of the present disclosure.

FIG. 23 is an exploded view of a locking member, a first fixing member, and a second connecting member according to an embodiment of the present disclosure.

FIG. 24 is a schematic view of the locking member, the first fixing member, the second elastic member, and the second connecting member according to an embodiment of the present disclosure.

FIG. 25 is an exploded view of the locking member, the first fixing member, the second elastic member and the second connecting member shown in FIG. 24.

FIG. 26 is a cross-sectional view of the locking member, the first fixing member, the second elastic member, and the second connecting member shown in FIG. 24 according to an embodiment of the present disclosure.

FIG. 27 is a cross-sectional view of the locking member, the first fixing member, the second elastic member, and the second connecting member of FIG. 24 according to another embodiment of the present application.

FIG. 28 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. 29 is a cross-sectional view of a locking mechanism including two first securing members, two locking members, and a memory alloy member according to an embodiment of the present application.

Fig. 30 is a perspective view of a locking mechanism according to another embodiment of the present application.

Fig. 31 is a schematic perspective view illustrating a locking mechanism of an embodiment of the present application when the locking mechanism is engaged with the first housing.

Fig. 32 is a partial schematic view of fig. 31.

FIG. 33 is a perspective view of the memory alloy element of the locking mechanism of FIG. 31.

Fig. 34 is a perspective view of a locking mechanism according to another embodiment of the present application.

FIG. 35 is a perspective view of a memory alloy member of the locking mechanism of FIG. 34.

Fig. 36 is a perspective view of a locking mechanism according to another embodiment of the present application.

Fig. 37 is a schematic view of the second housing and the lock mechanism in fig. 4 locked together.

Fig. 38 is an exploded partial schematic view of the second housing and locking mechanism of fig. 37.

Fig. 39 is a schematic perspective view of an electronic device according to an embodiment of the present application.

Fig. 40 is a partially exploded schematic view of the electronic device shown in fig. 39.

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 second 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 third fixing component-13, a locking component-20, a locking component-21, a locking tongue-210, a fourth connecting portion-211, a first locking portion-212, a second elastic component-22, a connecting component-30, a first connecting component-31, a first surface-310, a first buckling part-311, a first slider-3111, a second connecting component-32, a second surface-320, a second buckling part-321, a second slider-3211, a first mounting component-33, a first connecting part-331, a first accommodating groove-3310, a second connecting part-332, a groove-3320, a third connecting part-333, a first elastic component-34, a bonding component-35, a second mounting component-36, a second accommodating groove-360, a fifth through hole-361, a pin-362, a memory alloy component-40, a first end-401, a second end-402, a winding end-403, a first shell-51, a winding part-510 and a second shell-52, a second locking part-520, a positioning bar-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 terminals, the smart phone industry is coming to experience revolution brought by morphological innovation. For example, the display screen of the 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 scroll 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 scroll type electronic device, a display screen of the electronic device can be stretched and shrunk, and the change of the display area of the display screen is realized. The electronic device generally includes a first housing and a second housing, wherein the first housing may be understood as a fixed middle frame, and the second housing may be understood as a movable middle frame, wherein the second housing may slide relative to the first housing in various forms, so as to achieve the unfolding and the folding. 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. The flexible screen can realize the change of the display area along with the sliding of the second shell when the second shell slides.

However, the second housing can only be positioned at the starting position and the ending position relative to the first housing at present, and cannot be positioned at any position between the starting position and the ending position, that is, cannot realize a locking function, so that the positioning effect is poor. And electronic equipment because two casings draw close each other fast under the effect of external force in falling the scene, damage flexible or electronic equipment's internal mechanism easily.

In view of the above, in order to solve the above problems, the present application provides a locking 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 a schematic perspective view of the first housing, the second housing, and the locking mechanism shown in fig. 3. Fig. 6 is an exploded view of the first housing, second housing, and locking mechanism shown in fig. 4. Fig. 7 is an exploded view of the first housing, second housing, and locking mechanism shown in fig. 5. Fig. 8 is a schematic perspective view of the memory alloy member in a collapsed state of the locking mechanism shown in fig. 1.

The present embodiment provides a locking mechanism 1, which includes a fixing component 10, a locking component 20, a connecting component 30, and a memory alloy component 40. The locking assembly 20 is slidably disposed on the fixing assembly. The memory alloy member 40 can be contracted and extended by supplying power to change its length. The connecting assembly 30 includes a first connecting member 31 and a second connecting member 32 detachably connected to one end of the first connecting member 31, the other end of the first connecting member 31 is fixedly connected to one end of the memory alloy member 40, and the end of the second connecting member 32 far away from the first connecting 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 be contracted to 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.

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 by taking the electronic device 3 as a mobile phone of a roll-type. A roll-type cellular phone generally includes a first housing 51 and a second housing 52, wherein the second housing 52 can be extended and retracted by sliding relative to the first housing 51 in various ways (e.g., motor-driven, manually pulled by a user, etc.).

The locking mechanism 1 provided in the present embodiment includes a fixing element 10, a locking element 20, a connecting element 30, and a memory alloy element 40, but this does not mean that the locking mechanism 1 only includes four components, namely, the fixing element 10, the locking element 20, the connecting element 30, and the memory alloy element 40, and the present embodiment can solve the above mentioned technical problems only by using four components, namely, the fixing element 10, the locking element 20, the connecting element 30, 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, the connecting member 30, and the memory alloy member 40 will be described in detail in the following embodiments.

The fixing component 10 mainly plays a role in fixing, mounting and supporting, and is used for positioning and mounting the fixing component 10. The fixing assembly 10 includes a first fixing member 11, wherein the first fixing member 11 can be fixed on the first housing 51 so as 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 member 11 are not limited in this embodiment, and the first fixing member may be fixed to the first housing 51 and provide a basis for the subsequent assembly of the locking member 21. 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.

The locking assembly 20 mainly performs the locking function to achieve the 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 and is connected to 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 and is in a locked state. The sliding direction of the second housing 52 relative to the first housing 51 can be referred to the direction D1 in fig. 3-5. If the second housing 52 is to be slid further, the locking member 21 needs to be slid relative to the first fixing member 11, so that the locking member 21 is separated from the first fixing member 11 and is in the unlocked state. The locking member 21 may also be referred to as a bolt. The shape, structure, material, and other parameters of the locking member 21 are not limited in this embodiment, as long as the locking member 21 can 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. 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 power is cut off for the memory alloy part 40, the temperature is reduced to the box transformation point, the internal metallographic phase is changed from austenite to martensite, and the length is macroscopically shown to be longer until the original length is recovered, namely the memory alloy part 50 is reset.

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 fixing element 10, the locking element 20, and the memory alloy element 40. Specifically, the memory alloy member 40 may be indirectly connected to the locking member 21, and the memory alloy member 40 may be 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 element 40 can be controlled to contract or extend by being powered on or powered off, and the length of the memory alloy element 40 is adjusted to drive the locking element 21 to slide relative to the first fixing element 11, so that the locking element 21 is connected with the second housing 52, and the second housing 52 is fixed, thereby realizing the positioning function. 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 manner to position 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: a locked state when the locking member 21 is attached to the second housing 52, and an unlocked state when the locking member 21 is separated from the second housing 52. 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 is powered off to restore the memory alloy member 40 to the original length, and 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 to limit the sliding of the second housing 52, thereby realizing the locking function. In the embodiment, the unlocking and locking processes are realized by powering on and off the memory alloy piece 40, and the logic is simple.

However, in some special situations, the memory alloy member 40 cannot control the sliding of the locking member 21 relative to the first fixing member 11. For example, when a user holds the second housing 52 with his hand, a force is generated which acts on the contact surface between the locking member 21 and the second housing 52, thereby increasing 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 of the second housing 52 only 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. However, one end of the memory alloy member 40 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.

In view of this, the locking mechanism 1 of the present embodiment further includes a connecting assembly 30, the connecting assembly 30 includes a first connecting member 31 and a second connecting member 32, the other end of the first connecting member 31 is connected to one end of the memory alloy member 40, one end of the second connecting member 32 away from the first connecting member 31 is disposed on the locking member 21 of the locking assembly 20, and one end of the memory alloy member 40 is indirectly connected to the locking member 21 by the connecting assembly 30. The connection and position relationship of the other end of the memory alloy member 40 will be described in detail later. Meanwhile, one end of 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, because the locking member 21 is fixed, but the memory alloy member 40 still contracts to reduce the length, that is, when the memory alloy member 40 is in the contracted state, 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. 8) away from the second connecting member 32, so that the memory alloy member 40 normally moves. 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 extend 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. Because the friction between the locking member 21 and the second housing 52 is large, 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 housing 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.

Alternatively, the locking mechanism 1 may include only one fixing member 10, one locking member 20, and one connecting member 30. Of course, in other embodiments, the locking mechanism 1 may also include two fixing elements 10, two locking elements 20, and two connecting elements 30. As to how the memory alloy member 40 is joined to the above-described components, the present application will be described in detail below.

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 may be combined with other embodiments.

The terms "first", "second" and "first" as used herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate 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 intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.

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 member 40 is electrified, the memory alloy member 40 contracts, and the memory alloy member 40 pulls the first connecting member 31 backward, so that the memory alloy member 40 generates a pulling force F2 on the first connecting member 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 assembly 20 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 friction force between the locking assembly 20 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 can be generated, so that the locking mechanism 1 can be in the above-mentioned locked state, and even if the maximum connecting force between the first connecting member 31 and the second connecting member 32 is achieved, 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 connected, thereby effectively protecting 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 assembly 20 and the second housing 52 is not limited herein. 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. 9-10 together, fig. 9 is a schematic perspective view of a locking mechanism according to another embodiment of the present application. Fig. 10 is an exploded view of the locking mechanism shown in fig. 9. In this embodiment, the fixing assembly 10 includes a first fixing member 11 and a second 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 second fixing member 12, and the first connecting member 31 and the second connecting member 32 are disposed on the second fixing member 12.

The first fixing member 11 has been described above in detail, and the description of the embodiment is omitted here. The second attachment member 12 is primarily used to mount the various components of the connection assembly 30. Alternatively, the second fixing member 12 may be fixed to the first housing 51 in the same way as the first fixing member 11. In another embodiment, the second attachment member 12 may not be attached to any component. The present embodiment is schematically illustrated only by fixing the second fixing member 12 to the first housing 51. Specifically, the second through hole 120 may be formed in the second fixing member 12 and the first housing 51, and then the second 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 second fixing member 12. And the locking assembly 20 is slidably connected to the first fixing member 11 and the second fixing member 12, so that the locking assembly 20 can be connected to the second connecting member 32 disposed on the second fixing member 12.

Referring to fig. 9-10 again, in the present embodiment, the connecting assembly 30 further includes a first mounting member 33 and a first elastic member 34, the first mounting member 33 is connected to the first connecting member 31 and one end of the memory alloy member 40, and the first connecting member 31, the first mounting member 33 and the first elastic member 34 are disposed in the second fixing member 12. Opposite ends of the first elastic element 34 respectively abut against the first mounting element 33 and the second fixing element 12, so that the first connecting element 31 is slidably connected to the second fixing element 12.

When the memory alloy part 40 contracts, the first connecting part 31 and the first mounting part 33 can be driven to move along the direction away from the second connecting part 32, and the first elastic part 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 one end of the memory alloy member 40 are both mounted on the first mounting member 33, and the first connecting member 31 is slidably connected to the second fixing member 12. The second 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 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 second 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 electrified to contract the memory alloy element 40, so as to drive the first mounting element 33 connected with one end of the memory alloy element 40 to move along the direction away from the second connecting element 32, thereby driving the first connecting element 31 mounted on the first mounting element 33 to separate from the second connecting element 32 and also to slide along the direction away from the second connecting element 32. Meanwhile, since the second fixing member 12 is usually kept still, the first mounting member 33 can compress the first elastic member 34 during sliding, so that the first elastic member 34 is in a compressed state, and at this time, the first elastic member 34 has a tendency of returning to its original shape and gives the first mounting member 33 an elastic force toward the second connecting member 32, but since the first mounting member 33 is pulled by the memory alloy member 40 after being contracted all the time, the first mounting member 33 cannot move. However, when the memory alloy element 40 is powered off, the memory alloy element 40 extends to the original length, and 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 provided by the first elastic element 34, so as to drive the first connecting element 31 and one end of the memory alloy element 40 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 operations are 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 member 34 is in a state of equilibrium, and in another embodiment, the first resilient member 34 is already in a state of compression, such that the resilient force of the first resilient member 34 can be used to cause the first mounting member 33 to pull on the memory alloy member 40, thereby placing the memory alloy member 40 in a pre-tensioned state and facilitating the contraction of the memory alloy member 40 after the memory alloy member 40 is energized.

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

Referring to fig. 11, fig. 11 is an exploded view of a second fixing element according to an embodiment of the present disclosure. In this embodiment, the second fixing member 12 has an accommodating space 126, 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 disposed in the accommodating space 126, and the locking assembly 20 penetrates through a sidewall of the accommodating space 126 and is connected to the second connecting member 32.

The second 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 second 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 second 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, which can further reduce the difficulty of installing the connecting assembly 30 in the second fixing member 12, and is convenient for installation and disassembly. 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 be surrounded to form an accommodating space 126 having an opening on one side, and the opening not only facilitates the installation and the removal of the connecting assembly 30, but also provides a foundation for the installation of the subsequent first installation 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 second 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. 12, fig. 12 is an exploded view of a second fixing element, a first connecting element, and a second connecting element according to an embodiment of the present disclosure. In this embodiment, the first connecting piece 31 and the second fixing piece 12 are connected to a first sliding groove 1221 through a first sliding block 3111, the first sliding block 3111 is disposed on one of the side walls of the first connecting piece 31 and the accommodating space 126, and the first sliding groove 1221 is disposed on the other of the side walls of the first connecting piece 31 and the accommodating space 126.

In this embodiment, the first connecting member 31 and the second fixing member 12 can be slidably connected to the second fixing member 12 by the first sliding block 3111 and the first sliding slot 1221 being engaged with each other. Specifically, the first sliding slot 1221 is disposed on the sidewall of the accommodating space 126 when the first slider 3111 is disposed on the first connector 31. The first groove 3320 is disposed on the first connection member 31 when the first slider 3111 is disposed 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 sliding groove 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 slider 3111, and the second fixing member 12 may have a first sliding slot 1221 formed on 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 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. 12 again, in the present embodiment, the second connecting member 32 and the second fixing member 12 are connected to a second sliding slot 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 receiving space 126, and the second sliding slot 1222 is disposed on the other of the side walls of the second connecting member 32 and the receiving space 126.

In this embodiment, the second connecting member 32 and the second fixing member 12 can be matched with each other through the second sliding block 3211 and the second sliding groove 1222, so that the second connecting member 32 is slidably connected to the second 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. The first groove 3320 is disposed on the second connecting member 32 when the second slider 3211 is disposed on the sidewall of the accommodating space 126. 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 second sliding blocks 3211, and a second sliding slot 1222 may be formed in at least one of the second plate 122 and the third plate 123 of the first fixing portion 12a of the second fixing member 12, 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. 13-15, fig. 13 is a schematic view illustrating a second 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. 14 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. 13. Fig. 15 is a perspective view of the first mounting member shown in fig. 13. 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 installed 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, one end of the memory alloy member 40 is installed 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 adjacent to the second connecting portion 332, the first elastic member 34 is sleeved 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 receiving space 126.

The first mounting member 33 may include three connecting portions: 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, and the first slider 3111 at an end of the first connecting portion 31 is exposed so that 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 one end of the memory alloy member 40 is conveniently disposed 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 refers to the detachable connection of the first connector 31 and the second connector 32. Three specific embodiments are provided. Referring to fig. 16, fig. 16 is an exploded view of a connecting assembly according to an embodiment of the present disclosure. In this embodiment, the connecting assembly 30 further includes an adhesive member 35, a surface of the first connecting member 31 close to the second connecting member 32 is a first surface 310, a surface of the second connecting member 32 close to the first connecting member 31 is a second surface 320, and the adhesive member 35 is disposed on at least one of the first surface 310 and the second surface 320, so that the first connecting member 31 can be detachably connected to the second connecting 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 disposed on at least one of the first surface 310 and the second surface 320, specifically, the adhesive member 35 may be disposed on the first surface 310 alone, or the adhesive member 35 may be disposed on the second surface 320 alone, or the adhesive member 35 may be disposed 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. 17, fig. 17 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 matched with each other to enable the first connecting element 31 to be detachably connected with 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. 18, fig. 18 is an exploded view of a connecting assembly according to another embodiment of the present disclosure. 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 element 31 and the second connecting element 32 do not need to be provided with any component, and only the first connecting element 31 and the second connecting element 32 need to have magnetism, and the first connecting element 31 and the second connecting element 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 and second embodiments, that is, the first elastic member 34 is necessary to extend the first connecting member 31 and then the first connecting member 31 and the second connecting member 32 are necessary. 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. 19 to 21, fig. 19 is a schematic view illustrating a locking member, a second fixing member, a second mounting member, and a second connecting member according to an embodiment of the present disclosure. FIG. 20 is a view of the locking member, second mounting member, and second connecting member of FIG. 19 in combination. FIG. 21 is an exploded view of the locking member, the second fixing member, the second mounting member and the second connecting member of FIG. 19. In this embodiment, the connecting assembly 30 further includes a second mounting member 36, the fixing assembly 10 further includes a second fixing member 12, the second 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 second 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 second 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 slidably coupling the second connector 32 to the second attachment member 12. The second attachment member 12 thus provides not only the function of mounting the connecting assembly 30, but also the function of slidably guiding and positioning the second connecting member 32.

In addition, for the locking member 21, the locking member 21 may penetrate through the side wall of the accommodating 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 can be formed in the second mounting member 36 and the locking member 21, and then a pin 362 can be used to detachably connect the locking member 21 and the second mounting member 36. Further alternatively, the second mounting element 36 may be provided with a recess 3320, and the end of the locking element 21 may be disposed within the recess 3320, which may reduce the thickness of the locking element 21 when engaged with the second mounting element 36. The present embodiment may facilitate the assembly of the second connector 32 with the fastener 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.

Referring to fig. 22-23, fig. 22 is a schematic view illustrating a locking member, a first fixing member, and a second connecting member according to an embodiment of the present disclosure. FIG. 23 is an exploded view of a locking member, a first fixing member, and a second connecting member according to an embodiment of the present disclosure. In the present embodiment, the fixing element 20 has a sliding space 111, and the locking element 20 penetrates through the sliding space 111 and is connected to the second connecting element 32;

when the locking mechanism 1 is in the sliding state, the memory alloy member 40 contracts to drive the first connecting member 31 and the second connecting member 32 to move in a direction away from the fixing member 10, so that at least a portion of the latch 210 in the locking member 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.

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, further drive the locking part 21 to slide relative to the first fixing part 11, so that the bolt 210 of the locking part 21 is separated from the second shell 52 to realize unlocking, and finally at least part of the locking part 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.

Referring to fig. 24-26, fig. 24 is a schematic view illustrating a locking member, a first fixing member, a second elastic member, and a second connecting member according to an embodiment of the present disclosure. FIG. 25 is an exploded view of the locking member, the first fixing member, the second elastic member and the second connecting member shown in FIG. 24. FIG. 26 is a cross-sectional view of the locking member, the first fixing member, the second elastic member, and the second connecting member shown in FIG. 24 according to an embodiment of the present disclosure. 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 lock tongue 210 and a fourth connecting portion 211 connected to the lock tongue 210, at least a portion of the second elastic member 22 is disposed in the sliding space 111, 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 lock tongue 210 and a side wall of the sliding space 111.

Wherein, when the locking mechanism 1 is in the sliding state and at least part of the bolt 210 is retracted in the sliding space 111, the second elastic element 22 is in a compressed state; when the memory alloy member 40 extends, the memory alloy member can cooperate with the second elastic member 22 in a compressed state to make at least a portion of the latch 210 extend out of the sliding space 111, so as to drive the first connecting member 31 and the second connecting member 32 to move in a direction close to the fixing assembly 10.

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 portion 211, 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, and 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 gives a reverse elastic force to the latch bolt 210, but since the locking member 21 is pulled by the contracted memory alloy member 40 all the time, the locking member 21 cannot move. 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, and 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 reconnected to the second housing 52 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. 27, fig. 27 is a schematic cross-sectional view of the locking member, the first fixing member, the second elastic member, and the second connecting member of fig. 24 according to another embodiment of the present application. In the present embodiment, a stopper 112 is provided on an inner wall of the sliding space 111, and the stopper 112 can abut against the latch 210. In this embodiment, the inner side wall of the sliding space 111 may be provided with a stop portion 112, and the latch 210 may abut against the stop portion 112 after sliding for 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.

Referring to fig. 28-29, fig. 28 is a 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. FIG. 29 is a cross-sectional view of an embodiment of the present application wherein the locking mechanism includes two first securing members, two locking members, and a memory alloy member. 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 stopping portion 112, one of the locking elements 20 abuts against one of the stopping portions 112 when sliding with respect to one of the fixing elements 10 by a first predetermined distance, the other of the locking elements 20 abuts against the other of the stopping portions 112 when sliding with respect to the other of the fixing elements 10 by a second predetermined distance, and the first predetermined distance is equal to the second predetermined distance.

As shown in fig. 28, 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 a second predetermined distance relative to the other fixing member 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.

As shown in fig. 29, the locking mechanism 1 may also include a memory alloy member 40 in other embodiments, in which one end of the memory alloy member 40 is connected to the first connecting member 31 of one connecting member 30, and the other end of the memory alloy member 40 is connected to the first connecting member 31 of the other connecting member 30. At this time, the stopper portion 112 can also slide the locking members 21 at both ends, so that it is prevented that only one of the locking members 21 slides, and the other locking member 21 cannot be unlocked without sliding. Specifically, if only one of the locking members 21 initially slides, when one of the locking members 21 abuts against the stop portion 112 of the first fixing member 11, the one of the locking members 21 cannot slide further, but the memory alloy member 40 still contracts. Therefore, the other end of the memory alloy member 40 can be electrically driven to slide the other locking member 21 until the other locking member 21 abuts against the stop portion 112 in the other first fixing member 11.

The above description describes one end of the memory alloy member 40 directly or indirectly connected to the first connecting member 31, and the connection relationship between the other end of the memory alloy member 40 and the specific structure of the memory alloy member 40.

Referring to fig. 30, fig. 30 is a schematic perspective view of a locking mechanism according to another embodiment of the present disclosure. In this embodiment, the fixing assembly 10 further includes a third fixing member 13, and the other end of the memory alloy member 40 is fixed to the third fixing member 13.

In the first embodiment, the fixing assembly 10 may further include a third fixing member 13, and the third fixing member 13 may be fixed to the first housing 51, or the third fixing member 13 may not be fixed to any component. At this time, the other end of the memory alloy member 40 is fixed to the third fixing member 13, so that the memory alloy member 40 is fixed. Since the third fixing member 13 does not move, the other end of the memory alloy member 40 does not move, so that when the memory alloy member 40 contracts, only one end of the memory alloy member 40 contracts to slide the first connecting member 31, the second connecting member 32 and the locking member 21.

Alternatively, the third fixing member 13 includes, but is not limited to, a circuit board, in other words, the other end of the memory alloy member 40 can be directly fixed to the circuit board, so that the other end of the memory alloy member 40 can be fixed by the third fixing member 13, and the memory alloy member 40 can be directly electrified by the third fixing member 13. Specifically, the other end of the memory alloy member 40 is riveted with a terminal, and can be directly fixed on the third fixing member 13.

In addition, if the locking mechanism 1 includes two locking members 20, two fixing members 10, two connecting members 30, and two memory alloy members 40, the other ends of the two memory alloy members 40 can be fixed to the third fixing member 13.

Please refer to fig. 31-33 together, fig. 31 is a schematic perspective view illustrating a locking mechanism and a first housing according to an embodiment of the present disclosure. Fig. 32 is a partial schematic view of fig. 31. FIG. 33 is a perspective view of the memory alloy element of the locking mechanism of FIG. 31. In this embodiment, the memory alloy member 40 includes a first end 401 and a second end 402 disposed opposite to each other, and a winding end 403 disposed between the first end 401 and the second end 402, the first end 401 is fixed to the first connecting member 31 and constitutes the one end of the memory alloy member 40, the winding end 403 is used for winding to a portion to be wound, and the second end 402 is fixed to the third fixing member 13 and constitutes the other end of the memory alloy member 40.

The memory alloy member 40 is generally a member having a length, and thus the memory alloy member 40 includes a first end 401 and a second end 402 disposed opposite to each other, and a winding end 403 disposed between the first end 401 and the second end 402. Wherein the winding end 403 may be located anywhere between the first end 401 and the second end 402. For example, the wrapping end 403 may be located in the middle of the memory alloy member 40, or the wrapping end 403 may be located in other areas.

In the second embodiment, the first end 401 of the memory alloy member 40 can be connected to the first connecting member 31, and the second end 402 of the memory alloy member 40 can be fixed to the third fixing member 13. The winding end 403 of the memory alloy element 40 can be wound onto the winding portion 510 of the first housing 51, so as to change the extending direction of the memory alloy element 40 and make the originally straight memory alloy element 40 into a bent shape.

There is a theoretical maximum contraction value for memory alloy element 40, i.e., how much a memory alloy element 40 is not intended to be shortened, and there is a maximum contraction value for each memory alloy element 40. Therefore, the length of the memory alloy member 40 can be increased on the premise of the same space, so that the maximum shortened length of the memory alloy member 40 is increased, the sliding distance of the locking member 21 is increased, and the locking member 21 can be separated from the second housing 52.

Referring to fig. 34-35 together, fig. 34 is a schematic perspective view of a locking mechanism according to another embodiment of the present application. FIG. 35 is a perspective view of a memory alloy member of the locking mechanism of FIG. 34. In this embodiment, the memory alloy member 40 includes a first end 401 and a second end 402 disposed opposite to each other, and a winding end 403 disposed between the first end 401 and the second end 402, the winding end 403 is wound around the second connecting portion 332 of the first mounting part 33, the winding end 403 constitutes the one end of the memory alloy member 40, the first end 401 and the second end 402 are both fixed to the third fixing part 13, and the first end 401 and the second end 402 constitute the other end of the memory alloy member 40.

The first end 401, the second end 402, and the winding end 403 of the memory alloy member 40 are described in detail above, and the description of the embodiment is omitted. In the third embodiment, the winding end 403 can be wound around the second connecting portion 332 of the first mounting member 33, so as to change the extending direction of the memory alloy member 40, and thus the originally straight memory alloy member 40 can be bent. When the first end 401 and the second end 402 of the memory alloy member 40 are located on the same side of the winding end 403, the first end 401 and the second end 402 can be fixed to the third fixing member 13. In this case, the winding end 403 constitutes one end of the aforementioned memory alloy member 40, and the first end 401 and the second end 402 constitute the other end of the aforementioned memory alloy member 40.

This embodiment can generate a double contraction force by winding the winding end 403 onto the second connection portion 332 by one memory alloy member 40, thereby realizing a large unlocking force. In other words, in the present embodiment, one memory alloy element 40 is bent and sleeved on the second connecting portion 332, and although the maximum shortened length of the memory alloy element 40 cannot be increased, the two memory alloy elements 40 pull the second connecting portion 332 together, so that two pulling forces, i.e. double contraction forces, can be generated when the memory alloy elements 40 contract, thereby reducing the weight of the locking mechanism 1 and the occupied space.

Optionally, the second connecting portion 332 is provided with a groove 3320 (as shown in fig. 15), and the winding end 403 of the memory alloy member 40 is disposed in the groove 3320 to better limit the position of the memory alloy member 40.

Referring to fig. 36, fig. 36 is a schematic perspective view of a locking mechanism according to another embodiment of the present application. In this embodiment, the locking mechanism 1 includes two fixing elements 10, two locking elements 20, two connecting elements 30, and one memory alloy element 40; one end of the memory alloy member 40 is connected to the first connecting member 31 of one of the connecting members 30, and the other end of the memory alloy member 40 is connected to the first connecting member 31 of the other of the connecting members 30.

In a fourth embodiment, the locking mechanism includes two fixing elements 10, two locking elements 20, two connecting elements 30, and one memory alloy element 40, wherein the two fixing elements 10, the two locking elements 20, and the two connecting elements 30 are disposed in an axial symmetry. In this embodiment, one end of the memory alloy member 40 is connected to the first connecting member 31 of one connecting assembly 30, and the other end of the memory alloy member 40 is connected to the first connecting member 31 of the other connecting assembly 30, so that the two locking members 21 can be controlled by using one memory alloy member 40, and the structure of the locking mechanism 1 is simplified.

Referring to fig. 3-7, 31, 37-38, fig. 37 is a schematic view of the second housing and the locking mechanism shown in fig. 4 when locked. Fig. 38 is an exploded partial schematic view of the second housing and locking mechanism of fig. 37. The present embodiment provides a housing assembly 2, including 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 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 element 2 has a sliding state when the locking element 20 slides relative to the fixing element 10, and when the housing element 2 is in the sliding state, the housing element 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 according to the present embodiment can be applied to various fields, for example, the field of the electronic device 3 and the like, the field of vehicles, the field of machines, 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 above-mentioned centering frame, the first housing 51 is usually fixed, and the second housing 52 can be understood as the above-mentioned moving frame. 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, 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, so that the unlocking and locking of the housing assembly 2 can be realized by the mutual cooperation of the first locking part 212 and the second locking part 520.

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 40 is powered on to contract the memory alloy 40, and the memory alloy 40 can drive the first connecting member 31 to slide backward, because the first connecting member 31 is connected to the second connecting member 32, and 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 first connecting member 31 can drive the second connecting member 32 to move synchronously, and further the second connecting member 32 drives the locking member 21 to slide backward synchronously, 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, and thus, because the second housing 52 is no longer limited by the locking member 21 in the locking mechanism 1, the second housing 52 can slide relative to the first housing 51. 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 first connecting element 31, the second connecting element 32 and the locking element 21 slide 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 locking tongue 210 is relocated in the locking groove 524, the second housing 52 is fixed by the locking tongue 210, and the locking function is realized. The state at this time can be understood as the locked state.

In addition, when the user holds the second housing 52 with a hand and applies a certain force, the force is transmitted to the first locking portion 212 and the second locking portion 520, so that a large friction force is generated between the first locking portion 212 and the second locking portion 520, and if the friction force is large, the memory alloy member 40 cannot pull the locking member 21 to slide backwards, and the locked state can be understood. A stuck state may therefore be understood as a special case of a locked state. If the memory alloy member 40 is still energized in the locked state, the memory alloy member 40 still contracts and drives the first connecting member 31 to slide backwards, but the first connecting member 31 facilitates the separation of the second connecting member 32 because the locking member 21 and the second connecting member 32 cannot move. At this time, although the second housing 52 is still locked, the memory alloy member 40 can be effectively protected.

When the memory alloy member 40 is powered off, the memory alloy member 40 returns to its original length, and the first connecting member 31 moves forward again and is connected with the second connecting member 32 again. When the housing assembly 2 is not locked, the memory alloy member 40 can drive the locking member 21 to slide again according to the above-mentioned movement process, so that the housing assembly 2 is unlocked from 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, when the friction force between the second housing 52 and the locking member 21 is too large or the locking member 21 is in the locked state due to other reasons, the memory alloy member 40 can be effectively protected from being damaged, and the failure problem in the locked state can be solved. 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.

Referring to fig. 38 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 be locked only 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.

Please refer to fig. 39-40 together, and fig. 39 is a schematic perspective view of an electronic device according to an embodiment of the present application. Fig. 40 is a partially exploded schematic view of the electronic device shown in fig. 39. The present embodiment provides an electronic device 3, including a processor (not shown in the drawings), a power supply module (not shown in the drawings), 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 element 40 in the housing assembly 2, and the processor is configured to control the power supply module to power on or power off the memory alloy element 40, so as to contract or extend the memory alloy element 40;

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, a desktop Computer, and the like. The present embodiment does not limit the type of the electronic device 3. The present embodiment is only schematically described with the electronic device 3 as 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 the other side of the flexible screen 60 to be hidden, so that the size of the electronic device 3 is reduced, the area of the exposed flexible screen 60 is reduced, and the display surface is lowered.

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 structure, and the display area is further changed, and the locking mechanism 1 is used to position the second housing 52 to implement the locking 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, that is, 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 the memory alloy 40 to be energized to contract the memory alloy 40, and the memory alloy 40 can drive the first connecting member 31 to slide backward, because the first connecting member 31 is connected to the second connecting member 32, and the friction between the end of the latch 210 and the positioning bar 521 or the stopper in the locking groove 524 is small, the first connecting member 31 can drive the second connecting member 32 to move synchronously, and further the second connecting member 32 drives the locking member 21 to slide backward synchronously, 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, and thus, because the second housing 52 is no longer limited by the locking member 21 in the locking mechanism 1, the second housing 52 can slide relative to the first housing 51. 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 40 can be cut off to extend the memory alloy 40 to the original length, and at the same time, the first connecting member 31, the second connecting member 32, and the locking member 21 slide forward to reconnect the first locking portion 212 of the locking member 21 to the second locking portion 520 of the second housing 52, even if the latch 210 is relocated in the locking groove 524, the latch 210 is used to fix the second housing 52, thereby realizing the locking function. The state can be understood as a locked state, and the second casing 52 can no longer slide, so that the electronic device 3 is in a stable state, the display area is stable, and the user can use the display area with the specific size to perform corresponding operation.

In addition, when the user holds the second housing 52 with a hand and applies a certain force, the force is transmitted to the first locking portion 212 and the second locking portion 520, so that a large friction force is generated between the first locking portion 212 and the second locking portion 520, and if the friction force is large, the memory alloy member 40 cannot pull the locking member 21 to slide backwards, and the locked state can be understood. A stuck state may therefore be understood as a special case of a locked state. If the memory alloy member 40 is still energized in the locked state, the memory alloy member 40 still contracts and drives the first connecting member 31 to slide backwards, but the first connecting member 31 facilitates the separation of the second connecting member 32 because the locking member 21 and the second connecting member 32 cannot move. At this time, although the second housing 52 is still locked, the memory alloy member 40 can be effectively protected. At this time, the electronic device 3 is still in a stable state, the second housing 52 does not slide, and the size and the display area of the electronic device 3 do not change.

When the memory alloy member 40 is powered off, the memory alloy member 40 returns to its original length, and the first connecting member 31 moves forward again and is connected with the second connecting member 32 again. When the electronic device 3 is no longer locked, that is, when the user no longer applies an excessive force to the electronic device 3, the memory alloy member 40 can be used to drive the locking member 21 to slide according to the above-mentioned movement process, so that the electronic device 3 is moved from the locked state to the unlocked state.

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, when the friction force between the second housing 52 and the locking member 21 is too large or the locking member 21 is in the locked state due to other reasons, the memory alloy member 40 can be effectively protected from being damaged, and the failure problem in the locked state can be solved. 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.

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. 39 to fig. 40 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 piece 40 to be powered off, and the memory alloy piece 40 extends to enable the first locking portion 212 to be connected 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 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. When the second housing 52 slides to the locking position relative to the first housing 51, that is, the second locking portion 520 slides to be opposite to the corresponding first locking portion 212, the stroke detecting device 70 detects the position at which the second housing 52 moves relative 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, the present embodiment can operate the locking mechanism 1 when the first locking portion 212 corresponds to the second locking portion 520, so that the first locking portion 212 is accurately connected to the second locking portion 520 to achieve the locking function.

When the second housing 52 does not slide 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, calculate the time required for the second housing 52 to slide to the locking position relative to the first housing 51, send a position signal to the processor, receive the position signal and control the memory alloy element 40 to be powered off, and extend the memory alloy element 40 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. 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 detection 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 electrification 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 obtainment. In addition, the locking mechanism 1 is light in weight, small in size, small in occupied space of the shell and convenient for layout of other elements, and the locking mechanism 1 can effectively protect the memory alloy piece 40 in a blocking state by arranging the separable first connecting piece 31 and the separable second connecting piece 32, so that the memory alloy piece 40 is prevented from being damaged, and the service life of the memory alloy piece 40 is prolonged.

The foregoing detailed description has provided embodiments of the present application and is presented to enable the principles and embodiments of the present application to be illustrated and described, where the above description is merely intended to facilitate the understanding of the present application's 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, comprising:

a fixing component;

the locking assembly is arranged on the fixing assembly in a sliding mode;

a memory alloy member capable of contracting and extending by supplying electricity to change its length; and

2. The locking mechanism of claim 1, wherein the fixing assembly comprises a first fixing member and a second fixing member spaced apart from the first fixing member, the locking assembly is slidably connected to the first fixing member and the second fixing member, and the first connecting member and the second connecting member are disposed on the second fixing member.

3. The locking mechanism of claim 2, wherein the connecting assembly further comprises a first mounting member and a first elastic member, the first mounting member is connected to the first connecting member and one end of the memory alloy member, the first connecting member, the first mounting member and the first elastic member are disposed in the second fixing member, and two opposite ends of the first elastic member respectively abut against the first mounting member and the second fixing member, so that the first connecting member is slidably connected to the second fixing member;

when the memory alloy part contracts, the memory alloy part can drive the first connecting part and the first mounting part to move along the direction away from the second connecting part, and the first elastic part 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.

4. The locking mechanism of claim 3, wherein the second fixing member has a receiving space, at least a portion of the first connecting member, at least a portion of the second connecting member, at least a portion of the first mounting member, and the first resilient member are disposed in the receiving space, and the locking assembly extends through a sidewall of the receiving space and is coupled to the second connecting member.

5. The locking mechanism of claim 4, wherein the first connecting member and the second fixing member are cooperatively connected to a first sliding groove via a first sliding block, the first sliding block is disposed on one of the first connecting member and the sidewall of the accommodating space, and the first sliding groove is disposed on the other of the first connecting member and the sidewall of the accommodating space.

6. The locking mechanism according to claim 3, 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 groove, the first connecting member is mounted in the first receiving groove, the second connecting portion is disposed on a wall of the first receiving groove of the first connecting portion, one end of the memory alloy member is mounted on 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 receiving space.

7. The locking mechanism of claim 3, wherein the connecting assembly further comprises an adhesive member, wherein the surface of the first connecting member adjacent to the second connecting member is a first surface, the surface of the second connecting member adjacent to the first connecting member is a second surface, and the adhesive member is disposed on at least one of the first surface and the second surface, such that the first connecting member is detachably connected to the second connecting member.

8. The locking mechanism of claim 3, 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.

9. The locking mechanism of claim 1, wherein the first and second links 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.

10. The locking mechanism of claim 1, wherein the memory alloy member contracts while pulling on the first connecting member is greater than the coupling force between the first connecting member and the second connecting member.

11. The locking mechanism of claim 1, wherein the securing assembly is adapted to be secured to a first housing, the locking assembly is adapted to be locked to a second housing, and the first housing is slidably coupled to the second housing; when the locking mechanism is in the locked state, the friction force between the locking assembly and the second shell is larger than the connecting force between the first connecting piece and the second connecting piece.

12. The locking mechanism of claim 3, wherein the connecting assembly further comprises a second mounting member having 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 slot, the second connecting member is disposed in the second receiving slot, the second connecting member is slidably connected to the second mounting member, and the locking assembly extends through a sidewall of the receiving space and is connected to the other side of the second mounting member.

13. The locking mechanism of claim 12, wherein the second connecting member and the second fixing member are connected to a second sliding groove by a second sliding block, the second sliding block is disposed on one of the second connecting member and the sidewall of the receiving space, and the second sliding groove is disposed on the other of the second connecting member and the sidewall of the receiving space.

14. The locking mechanism of claim 1, wherein the fixing member has a sliding space, and the locking member extends through the sliding space and is connected to the second connecting member;

when the locking mechanism is in the sliding state, the memory alloy piece contracts to drive the first connecting piece and the second connecting piece to move in the direction away from the fixed assembly, so that at least part of the locking assembly is contracted in the sliding space.

15. The locking mechanism of claim 14, 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 piece is in a compressed state; when the memory alloy part extends, at least part of the lock tongue extends out of the sliding space by matching with the second elastic part in a compression state, and then the first connecting part and the second connecting part are driven to move along the direction close to the fixed component.

16. The lock mechanism of claim 14, wherein a stop is provided on an inner side wall of the sliding space, the stop being capable of abutting the latch bolt.

17. The locking mechanism of claim 16, wherein the locking mechanism comprises two fixing elements and two locking elements, the two fixing 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 predetermined distance, 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 predetermined distance, and the first predetermined distance is equal to the second predetermined distance.

18. The locking mechanism of claim 8, wherein the securing assembly further comprises a third securing member, the other end of the memory alloy member being secured to the third securing member.

19. The locking mechanism of claim 18, wherein said memory alloy member includes first and second oppositely disposed ends and a winding end disposed between said first and second ends, said first end being secured to said first connecting member and constituting said one end of said memory alloy member, said winding end being adapted to be wound onto a portion to be wound, said second end being secured to said third securing member and constituting said other end of said memory alloy member.

20. The locking mechanism of claim 18, wherein the memory alloy member includes first and second oppositely disposed ends and a winding end disposed between the first and second ends, the winding end being wound to the second coupling portion of the first mounting member, the winding end constituting the one end of the memory alloy member, the first and second ends each being secured to the third securing member, the first and second ends constituting the other end of the memory alloy member.

21. The locking mechanism of claim 1, wherein said locking mechanism includes two of said securing members, two of said locking members, two of said connecting members, and one of said memory alloy members, one end of said memory alloy member being connected to the first connecting member of one of said connecting members, and the other end of said memory alloy member being connected to the first connecting member of the other of said connecting members.

22. A housing assembly comprising a first housing, a second housing, and a locking mechanism according to any one of claims 1-21, the first housing being slidably connected to the second housing, a stationary component of the locking mechanism being secured to the first housing, the locking component of the locking mechanism being provided with a first locking portion, the second housing being provided with at least one second locking portion;

23. The housing assembly according to claim 22, wherein when the second housing is provided with a plurality of the second locking portions, an arrangement direction of the plurality of the second locking portions is parallel to a sliding direction of the second housing with respect to the first housing.

24. An electronic device, comprising a processor, a power supply module, and the housing assembly as claimed in any one of claims 22 to 23, 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 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.

25. The electronic device of claim 24, 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 part corresponds to the second locking part, 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 part to be powered off, and the memory alloy part extends to enable the first locking part to be 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 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 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 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 part 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.