Locking mechanisms, housing components, electronic devices

Abstract

This application provides a locking mechanism, a housing assembly, and an electronic device. The locking mechanism includes a fixing component, a locking component, and a shape memory alloy member. The fixing component is used to fix the device to a first housing. The locking component is slidably disposed on the fixing component and is used to lock or separate from the second housing. The shape memory alloy member can contract and extend to change its length by power supply. The shape memory alloy member includes a first end and a second end disposed opposite to each other, and at least one winding end disposed between the first end and the second end. The first end is connected to the locking component, the second end is used to fix the device to the first housing, and the winding end is used to wind around the winding portion of the first housing to change the extension direction of the shape memory alloy member. This application not only realizes the locking function but also increases the effective length of the shape memory alloy member, increases the sliding distance of the locking component, reduces the difficulty of locking and unlocking the locking component and the second housing, and improves the service life of the shape memory alloy member.

Description

Technical Field

[0001] The present application belongs to the technical field of locking mechanisms, and in particular relates to locking mechanisms, housing components, and electronic devices. Background Art

[0002] As users demand for larger display areas of electronic devices, new forms of electronic devices have been introduced, such as roll-up electronic devices and foldable electronic devices. Taking a roll-up electronic device as an example, the electronic device generally includes a first shell and a second shell, wherein the second shell can slide relative to the first shell to pull out the flexible screen to increase the display area, or retract the flexible screen to reduce the display area. However, current roll-up electronic devices cannot achieve a locking function. Summary of the invention

[0003] In view of this, a first aspect of the present application provides a locking mechanism applied to a housing assembly, wherein the housing assembly includes a first housing and a second housing, wherein the second housing can slide relative to the first housing, and the locking mechanism includes:

[0004] A fixing assembly, the fixing assembly being used to be fixed to the first shell;

[0005] a locking assembly, the locking assembly being slidably disposed on the fixing assembly, the locking assembly being used to lock the second shell or to be separated from the second shell; and

[0006] A memory alloy part, wherein the memory alloy part can be contracted and extended by power supply to change its length, the memory alloy part comprises a first end and a second end disposed opposite to each other, and at least one winding end disposed between the first end and the second end, the first end is connected to the locking assembly, the second end is used to be fixed to the first shell, and the winding end is used to be wound around the winding portion of the first shell to change the extension direction of the memory alloy part;

[0007] Among them, the memory alloy part can shrink in length by being energized, thereby driving the locking assembly to slide in a direction close to the winding portion, thereby separating the locking assembly from the second shell; the memory alloy part can also extend in length by being energized, thereby driving the locking assembly to slide in a direction away from the winding portion, thereby causing the locking assembly to lock the second shell.

[0008] The locking mechanism provided in the first aspect of the present application can realize the locking function through the cooperation of the fixing component, the locking component, and the memory alloy part. Specifically, the fixing component can be fixed on the first shell, and when the second shell slides relative to the first shell to the position where locking is required, the memory alloy part can be controlled to shrink or extend accordingly by powering on or off, and the length of the memory alloy part is adjusted to drive the locking component to slide relative to the fixing component to connect the locking component to the second shell, thereby realizing the locking of the second shell and realizing the positioning and locking functions.

[0009] In addition, the present application can also change the connection mode of the memory alloy part. Specifically, the memory alloy part includes two oppositely arranged ends: a first end and a second end. The first end can be connected to the locking assembly, and the second end can be fixed on the first shell, so that the memory alloy part is used to control the movement of the locking assembly. In addition to the first end and the second end, the memory alloy part also includes at least one winding end arranged between the first end and the second end. The winding end is mainly used to be wound around the winding portion of the first shell to change the extension direction of the memory alloy part, so that the originally straight memory alloy part is bent at the winding end, for example, the originally "I"-shaped memory alloy part is changed into a "U"-shaped one. In this way, the length of the memory alloy part can be increased in the same space, thereby increasing the effective length of the memory alloy part, thereby increasing the sliding distance of the locking assembly, and reducing the difficulty of locking and unlocking the locking assembly and the second shell.

[0010] In summary, the locking mechanism provided in the present application can not only realize the locking function, but also increase the effective length of the memory alloy part, increase the sliding distance of the locking component, reduce the difficulty of locking and unlocking the locking component and the second shell, and improve the service life of the memory alloy part.

[0011] The 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 winding end of the memory alloy member in the locking mechanism is wound around a winding portion of the first housing, and the second end is fixed to the first housing; the 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;

[0012] In which, the shell assembly has a sliding state when the locking assembly slides relative to the fixing assembly. When the shell assembly is in the sliding state, the shell assembly has a locked state when the first locking part is connected to the second locking part, and an unlocked state when the first locking part is separated from the second locking part.

[0013] The housing assembly provided in the second aspect of the present application, by adopting the locking mechanism provided in the first aspect of the present application, can not only realize the locking function, so that the first housing and the second housing can be fixed to the second housing when locking is required, but also can increase the effective length of the memory alloy part, increase the sliding distance of the locking assembly, reduce the difficulty of locking and unlocking the locking assembly and the second housing, and increase the service life of the memory alloy part.

[0014] The third aspect of the present application provides an electronic device, comprising 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 component in the housing assembly, and the processor is used to control the power supply module to power on or off the memory alloy component to cause the memory alloy component to contract or extend;

[0015] When the memory alloy piece is powered on, the memory alloy piece contracts to separate the first locking portion from the second locking portion; when the memory alloy piece is powered off, the memory alloy piece extends to connect the first locking portion to the second locking portion.

[0016] The electronic device provided in the third aspect of the present application, by adopting the housing assembly provided in the second aspect of the present application, can not only realize the locking function, so that the first housing and the second housing can be fixed to the second housing when locking is required, but also can increase the effective length of the memory alloy part, increase the sliding distance of the locking assembly, reduce the difficulty of locking and unlocking the locking assembly and the second housing, and increase the service life of the memory alloy part. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the locking mechanism in one embodiment of the present application.

[0019] Figure 2 for Figure 1 Exploded view of the locking mechanism shown.

[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the first shell, the second shell, and the locking mechanism in one embodiment of the present application.

[0021] Figure 4 for Figure 3 The three-dimensional structural schematic diagram of the first shell, the second shell, and the locking mechanism from another perspective is shown.

[0022] Figure 5 It is an exploded view of the first shell, the second shell, and the locking mechanism in one embodiment of the present application.

[0023] Figure 6 for Figure 5 An exploded view of the first shell, the second shell, and the locking mechanism from another perspective is shown.

[0024] Figure 7 It is a schematic diagram of the cooperation between the first shell and the locking mechanism in one embodiment of the present application.

[0025] Figure 8 for Figure 7 A partial schematic diagram of the first shell and the locking mechanism is shown.

[0026] Fig. 9 It is a schematic diagram of the three-dimensional structure of a memory alloy component in one embodiment of the present application.

[0027] Fig.10 It is a top view of a shape memory alloy component in one embodiment of the present application.

[0028] Fig.11 This is a top view of a memory alloy component in another embodiment of the present application.

[0029] Fig.12 It is a top view of the locking mechanism in one embodiment of the present application.

[0030] Fig.13 It is a schematic diagram of an exploded view of a locking member, a connecting assembly, and a memory alloy member in one embodiment of the present application.

[0031] Fig.14 It is a schematic diagram of the three-dimensional structure of the locking mechanism in another embodiment of the present application.

[0032] Fig.15 for Fig.14 Exploded view of the locking mechanism shown.

[0033] Fig.16 for Fig.14 The three-dimensional structural schematic diagram of the memory alloy part when the locking mechanism is in a stuck state is shown.

[0034] Fig.17 It is a schematic diagram of the three-dimensional structure of the locking mechanism in another embodiment of the present application.

[0035] Fig.18 for Fig.17 Exploded view of the locking mechanism shown.

[0036] Fig.19 Schematic diagram of the exploded structure of the third fixing member in one embodiment of the present application.

[0037] Fig. 20It is an exploded schematic diagram of the third fixing member, the first connecting member, and the second connecting member in one embodiment of the present application.

[0038] Fig.21 It is a schematic diagram of the coordination of the third fixing member, the first connecting member, the memory alloy member, the first mounting member, and the first elastic member in one embodiment of the present application.

[0039] Fig. 22 for Fig.21 A schematic diagram of the cooperation of the first connecting member, the memory alloy member, the first mounting member, and the first elastic member is shown.

[0040] Fig.23 for Fig.21 A schematic three-dimensional structural diagram of the first mounting member is shown.

[0041] Fig.24 This is a schematic diagram of an exploded view of a connection component according to an embodiment of the present application.

[0042] Fig.25 This is a schematic diagram of an exploded view of a connection assembly according to another embodiment of the present application.

[0043] Fig.26 This is a schematic diagram of an exploded view of a connection assembly according to another embodiment of the present application.

[0044] Fig. 27 It is a schematic diagram of the coordination of the locking member, the third fixing member, the second mounting member, and the second connecting member in one embodiment of the present application.

[0045] Fig.28 for Fig. 27 Schematic diagram of the cooperation between the middle locking member, the second mounting member, and the second connecting member.

[0046] Fig.29 for Fig. 27 Schematic diagram of the exploded view of the middle locking member, the third fixing member, the second mounting member, and the second connecting member.

[0047] Fig.30 Schematic diagram of the cooperation between the locking member and the first fixing member in one embodiment of the present application.

[0048] Fig.31 for Fig.30 The exploded schematic diagram of the locking member and the first fixing member is shown.

[0049] Fig.32 Schematic diagram of an exploded view of a locking member, a first fixing member, and a second elastic member in one embodiment of the present application.

[0050] Fig.33 This is an implementation method of the present application Fig.32 A schematic cross-sectional view of the middle locking member, the first fixing member, and the second elastic member.

[0051] Fig.34 It is a cross-sectional schematic diagram of a locking member, a first fixing member, and a second elastic member in another embodiment of the present application.

[0052] Fig.35 It is a cross-sectional schematic diagram of an embodiment of the present application in which the locking mechanism includes two first fixing members, two locking members, and two memory alloy members.

[0053] Fig.36 for Figure 4 Schematic diagram of the second shell and the locking mechanism being locked.

[0054] Fig.37 for Fig.36 An exploded partial schematic diagram of the second shell and the locking mechanism.

[0055] Fig.38 It is a partial schematic diagram of the first shell in one embodiment of the present application.

[0056] Fig.39 It is a partial schematic diagram of the first shell in one embodiment of the present application.

[0057] Fig.40 It is a schematic diagram of the three-dimensional structure of an electronic device in one embodiment of the present application.

[0058] Fig.41 for Fig.40 A partially exploded schematic diagram of the electronic device shown.

[0059] Description of labels:

[0060] Locking mechanism-1, housing assembly-2, electronic device-3, fixing assembly-10, first fixing member-11, first through hole-110, sliding space-111, stop portion-112, third fixing member-12, first fixing portion-12a, second fixing portion-12b, second through hole-120, first plate body-121, second plate body-122, first slide groove-1221, second slide groove-1222, third plate body-123, fourth plate body-124, fifth plate body-125, receiving Space 126, third through hole 127, fourth through hole 128, second fixing member 13, receiving hole 130, sixth through hole 131, snap-in member 14, locking assembly 20, locking member 21, eighth through hole 213, locking tongue 210, fourth connecting portion 211, first locking portion 212, second elastic member 22, connecting assembly 30, connecting groove 300, first connecting member 31, first surface 310, first buckle portion 311, first slider 31 11, second connecting member-32, second surface-320, second buckle portion-321, second slider-3211, first mounting member-33, first connecting portion-331, first receiving groove-3310, second connecting portion-332, third connecting portion-333, first elastic member-34, adhesive member-35, second mounting member-36, second receiving groove-360, fifth through hole-361, pin-362, memory alloy member-40, first end-401, second end-402, winding End-403, first part-404, second part-405, third part-406, seventh through hole-407, connecting surface-408, limit block-410, limit hole-411, first shell-51, winding part-510, limit groove-511, bearing part-512, limit part-513, second shell-52, second locking part-520, positioning strip-521, positioning groove-522, stop block-523, locking groove-524, flexible screen-60, stroke detection device-70. DETAILED DESCRIPTION

[0061] The following are preferred implementations of the present application. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

[0062] Before introducing the technical solution of the present application, the technical problems in the related technology are introduced in detail.

[0063] With the demand from users and the market for the "display area" of electronic devices such as mobile terminals, the smartphone industry is ushering in an experience revolution brought about by form innovation. For example, the display form of mobile phone products has evolved from the initial hard screen to the flexible screen, from small screen to large screen, from static mechanism to motion mechanism, and recently all major mobile phone manufacturers are developing folding screens, scroll screens, and sliding screens. The development of display form has also brought new problems to the mobile phone structural parts that install the display.

[0064] For example, a sliding electronic device, the display screen of which can be stretched and shrunk to achieve changes in the display area of ​​the display screen. The electronic device usually includes a first shell and a second shell, wherein the second shell can slide relative to the first shell in various ways to achieve expansion and retraction. Therefore, the first shell can be understood as a fixed center frame, and the second shell can be understood as a moving center frame. The flexible screen on one side of the first shell is fixed and cannot be moved, and the flexible screen on one side of the second shell extends all the way to the end of the second shell and then around to the inside of the second shell, so that the flexible screen is located on both the inside and outside of the second shell but is not fixed. When the second shell slides, the flexible screen can change the display area as the second shell slides, thereby changing the size and display area of ​​the electronic device.

[0065] However, the second shell can slide freely relative to the first shell and cannot be locked at the required position, that is, the locking function cannot be realized, resulting in poor positioning effect. In addition, in the case of an electronic device falling, the two shells quickly move together under the action of external force, which can easily damage the internal structure of the flexible or electronic device.

[0066] In view of this, in order to solve the above problems, the present application provides a locking mechanism. Please refer to Figure 1-Figure 8 , Figure 1 Schematic diagram of the three-dimensional structure of the locking mechanism in one embodiment of the present application. Figure 2 for Figure 1 Exploded view of the locking mechanism shown. Figure 3 It is a schematic diagram of the three-dimensional structure of the first shell, the second shell, and the locking mechanism in one embodiment of the present application. Figure 4 for Figure 3 The three-dimensional structural schematic diagram of the first shell, the second shell, and the locking mechanism from another perspective is shown. Figure 5 It is an exploded view of the first shell, the second shell, and the locking mechanism in one embodiment of the present application. Figure 6 for Figure 5 An exploded view of the first shell, the second shell, and the locking mechanism from another perspective is shown. Figure 7 It is a schematic diagram of the cooperation between the first shell and the locking mechanism in one embodiment of the present application. Figure 8 for Figure 7 A partial schematic diagram of the first shell and the locking mechanism is shown.

[0067] This embodiment provides a locking mechanism 1, which is applied to a housing assembly 2, wherein the housing assembly 2 includes a first housing 51 and a second housing 52, wherein the second housing 52 can slide relative to the first housing 51, and the locking mechanism 1 includes a fixing assembly 10, a locking assembly 20, and a memory alloy member 40. The fixing assembly 10 is used to be fixed to the first housing 51. The locking assembly 20 is slidably disposed on the fixing assembly 10, and the locking assembly 20 is used to lock the second housing 52 or to be separated from the second housing 52. The memory alloy member 40 can be contracted and extended by power supply to change its length, and the memory alloy member 40 includes a first end 401 and a second end 402 disposed opposite to each other, and at least one winding end 403 disposed between the first end 401 and the second end 402, wherein the first end 401 is connected to the locking assembly 20, and the second end 402 is used to be fixed to the first housing 51, and the winding end 403 is used to be wound around the winding portion 510 of the first housing 51 to change the extension direction of the memory alloy member 40.

[0068] Among them, the memory alloy component 40 can shrink in length by being energized, thereby driving the locking component 20 to slide in a direction close to the winding portion 510, thereby separating the locking component 20 from the second shell 52; the memory alloy component 40 can also stretch to its original length, thereby driving the locking component 20 to slide in a direction away from the winding portion 510, thereby causing the locking component 20 to lock the second shell 52.

[0069] The locking mechanism 1 provided in this embodiment mainly realizes functions such as locking, positioning, and limiting, and the locking mechanism 1 can be applied to various fields, such as electronic equipment 3 and other fields, vehicle fields, mechanical fields, etc. This embodiment is only schematically described by applying the locking mechanism 1 to the field of electronic equipment 3, and the application of the locking mechanism 1 to other fields should also fall within the protection scope of this application.

[0070] Furthermore, the electronic device 3 provided in this embodiment includes but is not limited to mobile terminals such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, and fixed terminals such as digital TVs and desktop computers. This embodiment does not limit the type of electronic device 3. This embodiment only schematically illustrates the electronic device 3 as a roll-up mobile phone. The roll-up mobile phone generally includes a first shell 51 and a second shell 52, wherein the second shell 52 can be slid relative to the first shell 51 to achieve expansion and retraction in various ways (such as motor drive, manual pulling by the user, etc.).

[0071] The locking mechanism 1 provided in this embodiment includes a fixing assembly 10, a locking assembly 20, and a memory alloy part 40, but this does not mean that the locking mechanism 1 can only include the three components of the fixing assembly 10, the locking assembly 20, and the memory alloy part 40. This embodiment only needs to use the three components of the fixing assembly 10, the locking assembly 20, and the memory alloy part 40 to solve the above-mentioned technical problems. Of course, in other embodiments, the locking mechanism 1 may also include other components. Next, this embodiment will introduce the fixing assembly 10, the locking assembly 20, and the memory alloy part 40 in detail.

[0072] The fixing assembly 10 mainly plays the role of fixing, installing and supporting, and is used to position and install the locking mechanism 1. The fixing assembly 10 includes a first fixing member 11, wherein the first fixing member 11 can be fixed on the first shell 51 so that the locking assembly is installed as a whole on the first shell 51, that is, the locking assembly is installed on the centering frame. And the first fixing member 11 can also be used to install the locking assembly 20. This embodiment does not limit the parameters such as the shape, structure, and material of the first fixing member 11, as long as it can be fixed on the first shell 51 and provide a basis for the subsequent assembly of the locking assembly 20. Of course, in other embodiments, the fixing assembly 10 may include other components in addition to the first fixing member 11, which will be described in detail later in this application.

[0073] The following description of the related structure and movement process of the first fixing member 11 can be directly used in this application, and of course, the related description can also be made using the fixing assembly 10. In addition, the fixing assembly 10 can also include other components in addition to the first fixing member 11, which will be described in detail in the following description of this application.

[0074] Optionally, a first through hole 110 may be opened on the first fixing member 11 and the first shell 51 , and then the first fixing member 11 and the first shell 51 may be fixed together by screws.

[0075] Optionally, the first fixing member 11 and the first shell 51 may be an integrated structure or a split structure.

[0076] The locking assembly 20 mainly plays a locking role to achieve the positioning effect of the second shell 52. The locking assembly 20 includes a locking piece 21, and the locking piece 21 is slidably connected to the first fixing piece 11, that is, the locking piece 21 can slide relative to the first fixing piece 11. When the second shell 52 slides relative to the first shell 51 to the position that needs to be locked, the locking piece 21 can slide relative to the first fixing piece 11 and connect and lock to the second shell 52, thereby achieving the positioning and limiting functions of the second shell 52, so that the second shell 52 can no longer slide relative to the first shell 51 and is in a locked state. The sliding direction of the second shell 52 relative to the first shell 51 can refer to Figure 3-Figure 4 As shown in the direction D1 in the figure. If the second housing 52 wants to continue to slide, the locking member 21 needs to slide in the opposite direction relative to the first fixing member 11, so that the locking member 21 is separated from the first fixing member 11 and is in an unlocked state. Therefore, the locking member 21 can also be called a latch. This embodiment does not limit the parameters such as the shape, structure, and material of the locking member 21, as long as the locking member 21 can be slidably connected to the first fixing member 11.

[0077] The following description of the relevant structure and movement process can be directly adopted by the locking member 21 in this application, and of course, the relevant description can also be made by the locking assembly 20. In addition, the locking assembly 20 can also include other components in addition to the locking member 21, which will be described in detail in the following description of this application.

[0078] Optionally, the sliding direction of the second housing 52 relative to the first housing 51 (eg Figure 3-Figure 4 The direction D1 in the figure is perpendicular to the sliding direction of the locking member 21 relative to the first fixing member 11 (as shown in the figure Figure 4 (as shown in the direction of D2 in the figure).

[0079] The memory alloy part 40 is a part that can change size as the temperature changes, and can also be called a shape memory alloy (SMA). For example, the memory alloy part 40 can be powered on, and when the temperature rises to the phase transition point, the internal metallographic phase changes from martensite to austenite, which is manifested as a shortened length on a macro scale. When the memory alloy part 40 is powered off, the temperature drops to the phase transition point, and the internal metallographic phase changes from austenite to martensite, which is manifested as a lengthened length on a macro scale, until it returns to its original length.

[0080] As a smart material, the memory alloy part 40 has the advantages of simple structure, small space occupation, large energy density, driving strain and driving stress, low driving voltage, and easy acquisition, and has broad application prospects in consumer electronic products. For example, in the related technology, the memory alloy part 40 can be applied to the camera to realize the anti-shake technology of the camera. The memory alloy part 40 can also be applied to the field of laptops, using the memory alloy part 40 as a driving force. When the power is turned on, the memory alloy part 40 is closed to control the NS position of the magnet group, and the "one-button opening and closing" function (KnockKnock) of the laptop is realized by relying on the magnetic field. In the specific control, the length of the memory alloy part 40 can be controlled according to the measurement of resistance.

[0081] Therefore, the locking mechanism 1 provided in this embodiment can realize the locking function through the mutual cooperation of the first fixing member 11 in the fixing assembly 10, the locking member 21 in the locking assembly 20, and the memory alloy member 40. Specifically, the memory alloy member 40 can be directly or indirectly connected to the locking member 21, and the memory alloy member 40 can be used to control the sliding of the locking member 21. When the second shell 52 slides to the position where it needs to be locked relative to the first shell 51, the memory alloy member 40 can be controlled to shrink or extend accordingly by powering on or off, and the length of the memory alloy member 40 can be adjusted to drive the locking member 21 to slide relative to the first fixing member 11 to connect the locking member 21 with the second shell 52, thereby achieving the fixation of the second shell 52 and realizing the positioning function. Or the locking member 21 is separated from the second shell 52 so that the second shell 52 can continue to slide. In addition, after the second shell 52 is positioned with the first shell 51 through the locking mechanism 1, the whole machine can be effectively protected when it falls, thereby preventing the flexible screen 60 from being damaged or the internal structure of the whole machine from being damaged.

[0082] As can be seen from the above, the locking mechanism 1 has a memory alloy member 40 that can control the sliding state of the locking member 21 when it slides relative to the first fixing member 11. In the sliding state, the locking member 21 can slide and connect with the second housing 52 to realize the positioning of the second housing 52, or the locking member 21 is separated from the second housing 52 so that the second housing 52 can continue to slide. Therefore, the locking mechanism 1 has two states in the sliding state: a locked state when the locking member 21 locks 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 energized to shrink the memory alloy member 40, thereby driving 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 its original length, that is, reset to its original length. At the same time, 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, restricting the sliding of the second housing 52, and realizing the locking function. This embodiment realizes the unlocking and locking process by powering on and off the memory alloy member 40, and the logic is simple.

[0083] However, when the memory alloy part 40 is powered on, when the temperature rises to the phase transition point, the internal metallographic phase will change from martensite to austenite, although the length becomes shorter macroscopically. However, this length shortening cannot be shortened continuously, that is, it does not become shorter as the phase transition is shorter. Each memory alloy part 40 has a shrinkage rate, and its yield is generally 3.5%-4%, and the smaller the shrinkage rate used, the longer its life. And when the memory alloy part 40 produces a rated displacement, the length of the memory alloy part 40 that needs to be used can be calculated based on its shrinkage rate, and this length is the effective length.

[0084] Therefore, the present embodiment can also change the connection mode of the memory alloy member 40. Specifically, the memory alloy member 40 includes two oppositely arranged ends: a first end 401 and a second end 402. First, the two ends can be connected to different components respectively, wherein the first end 401 can be connected to the locking member 21, and the second end 402 can be fixed on the first shell 51. In this way, when the memory alloy member 40 is energized to make the memory alloy member 40 contract, since the second end is fixed on the first shell 51 which is stationary, only the second end 402 can move, thereby pulling the locking member 21 to slide, and finally realizing the use of the memory alloy member 40 to control the movement of the locking member 21.

[0085] In addition to the first end 401 and the second end 402, the memory alloy part 40 also includes at least one winding end 403 disposed between the first end 401 and the second end 402. Optionally, the present embodiment is only schematically illustrated as the memory alloy part 40 including one winding end 403. In other embodiments, the memory alloy part 40 may also include multiple winding ends 403. Correspondingly, multiple winding parts 510 are provided on the first shell 51. The winding part 510 can also be understood as a pulley for winding the winding end 403. The winding end 403 is mainly used to be wound onto the winding part 510 of the first shell 51 to change the extension direction of the memory alloy part 40 (such as Figure 2 The originally straight memory alloy member 40 is bent at the winding end 403, for example, the originally "I"-shaped memory alloy member 40 is bent into a "U" shape. The extension direction mentioned above can be understood as the extension direction from the first end 401 to the second end 402, or it can also be understood as the extension direction from the second end 402 to the first end 401. This embodiment is only schematically illustrated with the extension direction from the first end 401 to the second end 402. Therefore, the original extension direction of the memory alloy member 40 is D3, but after the winding end 403 is wound and the direction is changed, the extension direction becomes D4.

[0086] In this way, the length of the memory alloy member 40 can be increased within the same space, thereby increasing the effective length of the memory alloy member 40, thereby increasing the slidable distance of the locking member 21, and reducing the difficulty of locking and unlocking the locking member 21 and the second housing 52. In addition, since the effective length of the memory alloy member 40 is increased, the shrinkage rate of the memory alloy member 40 can be reduced under the premise that the locking member 21 slides the same distance, thereby increasing the service life of the memory alloy member 40.

[0087] Optionally, the form in which the winding end 403 is wound around the winding portion 510 is not limited in this embodiment. For example, the winding end 403 can be wound around the winding portion 510 for half a circle, or the winding end 403 can be wound around the winding portion 510 for one circle, as long as it does not affect the movement of the locking member 21 when the memory alloy member 40 contracts.

[0088] Optionally, when the memory alloy member 40 is energized, current may be introduced from the first end 401 and the second end 402 of the memory alloy member 40 , that is, positive and negative voltages are applied to the first end 401 and the second end 402 , respectively.

[0089] In summary, the locking mechanism 1 provided in this embodiment can not only realize the locking function, but also increase the effective length of the memory alloy part 40, increase the sliding distance of the locking part 21, reduce the difficulty of locking and unlocking the locking part 21 and the second shell 52, and improve the service life of the memory alloy part 40.

[0090] It should be noted that the reference to "embodiment" or "implementation method" in this document means that the specific features, structures or characteristics described in conjunction with the embodiment or implementation method may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0091] The terms "first" and "second" appearing in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" refers to two or more, unless otherwise clearly and specifically defined. In the description of this application, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", and "set on..." should be understood in a broad sense, for example, it can be a fixed connection, or it can be detachably connected, or connected in one piece; it can be a mechanical connection; it can be directly connected, or it can be indirectly connected through other media, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0092] Please refer to Fig. 9 , Fig. 9 The three-dimensional structure diagram of the memory alloy member in one embodiment of the present application is shown in FIG. 4. In this embodiment, the memory alloy member 40 further includes a first portion 404 and a second portion 405 extending in the opposite direction from the first portion 404 . The connecting portion between the first portion 404 and the second portion 405 is the winding end 403 of the memory alloy member 40 .

[0093] In addition to the first end 401, the second end 402, and the winding end 403, the memory alloy member 40 may also include a first portion 404 and a second portion 405. The first portion 404 has two opposite sides connected to the first end 401 and the winding end 403, in other words, the first portion 404 is the middle portion between the first end 401 and the winding end 403. The second portion 405 has two opposite sides connected to the second end 402 and the winding end 403, in other words, the second portion 405 is the middle portion between the second end 402 and the winding end 403.

[0094] It is worth noting that the winding end 403 connected to the first part 404 and the second part 405 can be the same winding end 403 or different winding ends 403. When the first part 404 and the second part 405 are connected to the same winding end 403, it means that the memory alloy component 40 only includes one winding end 403. When the first part 404 and the second part 405 are connected to different winding ends 403, it means that the memory alloy component 40 includes multiple winding ends 403, and the memory alloy component 40 also includes other parts.

[0095] In addition, the extending direction of the first portion 404 is the direction from the first end 401 to the first portion 404 away from the first end 401 (eg Fig. 9 The extending direction of the second portion 405 is the direction from the second portion 405 away from the second end 402 to the second end 402 (as shown in the direction D3 in FIG. 1 ). Fig. 9 In this embodiment, the D3 direction and the D4 direction can be parallel to each other so that the first part 404 and the second part 405 are parallel to each other, further increasing the effective length of the memory alloy member 40, and when the memory alloy member 40 contracts, the force of the memory alloy member 40 can be more transmitted to the locking member 21, driving the locking member 21 to move. In addition, in this embodiment, the D3 direction can be the same as or opposite to the D4 direction. As for when the directions are the same or opposite, it can be adjusted according to the specific connection of the memory alloy member 40. In this embodiment, the D3 direction is only schematically described as being opposite to the D4 direction.

[0096] Please refer to Fig.10 , Fig.10 4 is a top view of a memory alloy member in one embodiment of the present application. In this embodiment, in the extension direction of the first portion 404 , the length of the first portion 404 is equal to the length of the second portion 405 .

[0097] In addition to controlling the extension direction, this embodiment can also make the length of the first portion 404 equal to the length of the second portion 405, thereby further increasing the effective length of the memory alloy member 40 in the same space.

[0098] Please refer to Fig.11 , Fig.11 This is a top view of a memory alloy member in another embodiment of the present application. In this embodiment, the memory alloy member 40 includes a plurality of winding ends 403, and the memory alloy member 40 also includes at least one third portion 406, and each of the third portions 406 has two opposite sides connected to one winding end 403 respectively.

[0099] In this embodiment, the memory alloy part 40 may include multiple winding ends 403, so in addition to the first part 404 and the second part 405, a third part 406 may also be included. When the memory alloy part 40 includes two winding ends 403, the memory alloy part 40 only includes one third part 406. When the memory alloy part 40 includes more than two winding ends 403, the memory alloy part 40 includes multiple third parts 406. For the third part 406, the opposite sides of each third part 406 are respectively connected to a winding end 403. Therefore, in this embodiment, the memory alloy part 40 can be wound multiple times, so that the shape of the memory alloy part 40 becomes wavy, thereby further increasing the effective length of the memory alloy part 40 in the same space. In this embodiment, the memory alloy part 40 is only schematically illustrated as including two winding ends 403 and one third part 406.

[0100] As for the relationship between the extension direction and length of the third portion 406 and the first portion 404 and the second portion 405, this embodiment does not limit it. For example, the extension direction of the third portion 406 can be parallel to the extension directions of the first portion 404 and the second portion 405. For another example, the length of the third portion 406 can be equal to the length of the first portion 404 and the length of the second portion 405. Of course, the length of the third portion 406 may not be equal to the length of the first portion 404 and the length of the second portion 405.

[0101] The above detailed description discusses various detailed structures of the memory alloy member 40 along the extension direction of the memory alloy member 40. Next, the detailed structures perpendicular to the extension direction of the memory alloy member 40 will be discussed. Fig.12 , Fig.12 In this embodiment, in a direction perpendicular to the extension direction of the memory alloy member 40 , the width of the memory alloy member 40 is less than or equal to the overall width of the fixing assembly 10 and the locking assembly 20 when they are matched.

[0102] From the above content, it can be known that the memory alloy component 40 changes the extension direction of the memory alloy component 40 by winding the winding end 403 onto the winding portion 510 of the first shell 51. Therefore, the originally straight-line memory alloy component 40 now becomes a component with a certain width in the extension direction perpendicular to the memory alloy component 40. And for the locking component 21 and the first fixing component 11, the locking component 21 is slidably connected to the first fixing component 11, so the locking component 21 has an overall width when it cooperates with the first fixing component 11. When the locking component 21 slides and one side of the first fixing component 11, the overall width can be understood as the width in the extension direction perpendicular to the memory alloy component 40 (such as Fig.12The total width is the sum of the widths of the locking member 21 and the first fixing member 11 in the direction indicated by D5 in the figure. When the locking member 21 is slidably connected to the sliding space 111 in the first fixing member 11, the total width can be understood as the maximum value of the width of the locking member 21 and the width of the first fixing member 11 in the extending direction perpendicular to the memory alloy member 40.

[0103] In this embodiment, the width of the memory alloy member 40 (eg Fig.12 L1 in FIG. 1 is less than or equal to the overall width of the first fixing member 11 and the locking member 21 when they are matched (as shown in FIG. Fig.12 In other words, the width of the memory alloy member 40 is not greater than the overall width when the first fixing member 11 and the locking member 21 are matched. In this way, the overall width of the locking mechanism 1 is not increased while the effective length of the memory alloy member 40 is increased, thereby miniaturizing the locking mechanism 1 and facilitating its installation in the electronic device 3.

[0104] Please refer to Figure 1 , Figure 8 ,and Fig.12 In this embodiment, the fixing assembly 10 includes a clamping member 14 and a second fixing member 13. The second fixing member 13 is used to fix the second end 402 of the memory alloy member 40 to the first shell 51. The second fixing member 13 has a receiving hole 130. The clamping member 14 is clamped on the outer peripheral side of the second fixing member 13 and exposed through the receiving hole 130. The memory alloy member 40 passes through the second fixing member 13 through the receiving hole 130 and the second end 402 is connected to the clamping member 14.

[0105] In addition to the first fixing member 11, the fixing assembly 10 may also include a second fixing member 13 and a clamping member 14. The first fixing member 11 is used to connect the locking member 21 to the first shell 51, and the second fixing member 13 is used to fix the second end 402 of the memory alloy member 40 to the first shell 51. Specifically, the second fixing member 13 has a receiving hole 130, and the receiving hole 130 optionally passes through the two opposite side surfaces of the second fixing member 13, and the top surface of the two opposite side surfaces is bent and connected, that is, the receiving hole 130 of this embodiment can be a hole-shaped structure with three-sided openings. The clamping member 14 can be clamped to one of the two opposite side surfaces of the second fixing member 13. In other words, the clamping member 14 can be clamped to the opening surface of the second fixing member 13 on the side away from the winding portion 510. Then the memory alloy member 40 passes through the second fixing member 13 through the receiving hole 130 and connects the second end 402 to the clamping member 14.

[0106] During installation, the second end 402 can be connected to the clamping member 14 first, and then the second end 402 and the clamping member 14 can be inserted into the receiving hole 130 from the opening on the top surface, so that the memory alloy member 40 passes through the second fixing member 13, and the clamping member 14 clamps the second fixing member 13. Finally, the memory alloy member 40 is fixed to the first housing 51 by using the sixth through hole 131 on the second fixing member 13 in conjunction with the screw. In this way, not only the difficulty of fixing the second end 402 to the first housing 51 can be reduced, but also due to the existence of the clamping member 14, the second end 402 of the memory alloy member 40 is in a fixed state when it is energized and contracted, and only the first end 401 moves, thereby driving the locking member 21 to move.

[0107] Please refer to Figure 1-Figure 2 ,as well as Fig.13 , Fig.13 The schematic diagram of the locking member, the connecting assembly, and the memory alloy member in one embodiment of the present application is shown in FIG. 1. In this embodiment, the locking mechanism 1 further includes a connecting assembly 30, one end of the connecting assembly 30 is connected to the first end 401, and the other end of the connecting assembly 30 is connected to the locking assembly 20.

[0108] In addition to the above components, the locking mechanism 1 may also include a connecting assembly 30, so that the connecting assembly 30 connects the first end 401 and the locking member 21. In other words, in this embodiment, the first end 401 is not directly connected to the locking member 21, but is indirectly connected to the locking member 21 through the connecting assembly 30. This not only reduces the connection difficulty of the first end 401, but also allows the connecting assembly 30 to achieve more functions.

[0109] For the connection component 30 and the first end 401 , a seventh through hole 407 may be opened on the first end 401 , and a corresponding groove may be opened on the connection component 30 , and then the connection between the connection component 30 and the first end 401 may be achieved using the pin 362 .

[0110] For the connecting component 30 and the locking component 21, a connecting groove 300 can be opened on the connecting component 30, the end of the locking component 21 is arranged in the connecting groove 300, the eighth through hole 213 is opened on the locking component 21, and then the pin 362 is used to realize the connection between the connecting component 30 and the locking component 21.

[0111] Please refer again Fig. 9 In this embodiment, the memory alloy component 40 also includes a first portion 404 connected between the first end 401 and the winding end 403, and the first end 401 has a connecting surface 408 connected to the connecting component 30. In the extension direction perpendicular to the memory alloy component 40, the height of the connecting surface 408 is greater than the height of the first portion 404.

[0112] The first portion 404 of the memory alloy member 40 has been described in detail above, and this embodiment will not be repeated here. Since the first end 401 can be connected to the connecting component 30 in this embodiment, the first end 401 has a connecting surface 408 for connecting to the connecting component 30. This embodiment can be perpendicular to the extension direction of the memory alloy member 40 (such as Fig. 9 The height of the upper connecting surface 408 (shown in the direction D6) is greater than the height of the first portion 404. In other words, the size of the first end 401 is enlarged in this embodiment, so as to better connect with the connecting assembly 30 and reduce the difficulty of connection.

[0113] Please refer again Fig.13 In this embodiment, the first end 401 and the connecting component 30 are connected by a limiting block 410 and a limiting hole 411, wherein the limiting block 410 is provided at one of the first end 401 and the connecting component 30, and the limiting hole 411 is provided at the other of the first end 401 and the connecting component 30.

[0114] In this embodiment, the first end 401 and the connection assembly 30 can also be limited by the limit block 410 and the limit hole 411, so as to further reduce the connection difficulty between the first end 401 and the connection assembly 30 and improve the positioning effect. Optionally, when the limit block 410 is provided at the first end 401, the limit hole 411 is provided on the connection assembly 30. Or when the limit block 410 is provided at the connection assembly 30, the limit hole 411 is provided at the first end 401. This embodiment is only schematically described with the limit block 410 provided at the connection assembly 30 and the upper limit hole 411 provided at the first end 401.

[0115] It is mentioned above that the locking mechanism 1 has a sliding state in which the locking member 21 can slide relative to the first fixing member 11. In the sliding state, the memory alloy member 40 controls the locking member 21 to slide to achieve locking and unlocking with the second housing 52. However, when the locking member 21 is locked with the second housing 52, in some special scenarios, the memory alloy member 40 cannot control the sliding of the locking member 21 relative to the first fixing member 11. For example, when the user holds the second housing 52, 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. When the memory alloy member 40 contracts and drives the locking member 21 to slide, friction is generated between the locking member 21 and the second housing 52. The locking member 21 can only slide out of the second housing 52 after overcoming the friction. Therefore, when the user's hand grip is strong, the frictional force to be overcome is also very large. If the pulling force on the locking member 21 generated by the memory alloy member 40 when it contracts is not enough to overcome the frictional force, the memory alloy member 40 contraction cannot drive the locking member 21 to slide, that is, the locking member 21 remains fixed relative to the first fixing member 11 and the second housing 52, and this state can be called a stuck state. Therefore, the stuck state can be understood as a special case of the locked state.

[0116] When the locking mechanism 1 is in a stuck state, the locking member 21 is fixed, and if the memory alloy member 40 is still powered, the memory alloy member 40 still needs to shrink. However, the first end 401 is connected to the locking member 21. This will cause the memory alloy member 40 to undergo plastic deformation, resulting in its length becoming longer, and the performance of the memory alloy member 40 will be damaged.

[0117] Please refer to Figure 14-16 , Fig.14 It is a schematic diagram of the three-dimensional structure of the locking mechanism in another embodiment of the present application. Fig.15 for Fig.14 Exploded view of the locking mechanism shown. Fig.16 for Fig.14 The three-dimensional structural diagram of the memory alloy part when the locking mechanism is in a stuck state is shown. In this embodiment, the connecting component 30 includes a first connecting member 31 and a second connecting member 32 detachably connected to the first connecting member 31, the other end of the first connecting member 31 is fixedly connected to the first end 401, and the end of the second connecting member 32 away from the first connecting member 31 is arranged on the locking component 20.

[0118] When the locking assembly 20 is fixed relative to the fixing assembly 10 and the memory alloy component 40 is in a contracted state, the memory alloy component 40 can drive the first connecting component 31 to separate from the second connecting component 32 and drive the first connecting component 31 to move in a direction away from the second connecting component 32.

[0119] In view of this, the locking mechanism 1 provided in this embodiment is further provided with a connecting assembly 30 including a first connecting member 31 and a second connecting member 32, so that the first connecting member 31 is connected to the first end 401 of the memory alloy member 40, and the second connecting member 32 is connected to the locking member 21. At the same time, 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 in various ways, or the first connecting member 31 can also be separated from the second connecting member 32. When the first connecting member 31 can be connected to the second connecting member 32, the memory alloy member 40, the first connecting member 31, the second connecting member 32, and the locking member 21 are connected together, and the change in the length of the memory alloy member 40 can drive the locking member 21 to move synchronously, thereby achieving locking and unlocking. 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 move with the first connecting member 31.

[0120] When the locking mechanism 1 is in a stuck state, since the locking member 21 is fixed, but the memory alloy member 40 still contracts and reduces its length, 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 away from the second connecting member 32 (such as Fig.16 In other words, the present embodiment allows the memory alloy member 40 to shrink normally by separating the first connecting member 31 from the second connecting member 32, which can effectively protect the memory alloy member 40, prevent the memory alloy member 40 from being unable to separate from the locking member 21 and thus undergoing plastic deformation, causing its length to lengthen, and prevent the memory alloy member 40 from being damaged.

[0121] Specifically, when the locking mechanism 1 is in a normal working state, that is, in a sliding state, the memory alloy member 40 is energized to contract, thereby driving the first connecting member 31 to move. And in the sliding state, the first connecting member 31 is connected to the second connecting member 32. When the friction between the locking member 21 and the second shell 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 shell 52 are separated to achieve the unlocking function. After the memory alloy member 40 is powered off, the memory alloy member 40 can be extended to its original length, and at the same time, the locking member 21 can slide in the opposite direction so that the locking member 21 reconnects to the second connecting member 32 to achieve the locking function.

[0122] When the locking mechanism 1 is in a stuck state, the memory alloy part 40 is energized to shrink, thereby driving the first connecting part 31 to move. Since the friction between the locking part 21 and the second shell 52 is relatively large at this time, the locking part 21 cannot move, and the second connecting part 32 cannot move either. At this time, the memory alloy part 40 can separate the first connecting part 31 from the second connecting part 32, so that the memory alloy part 40 can still shrink normally, thereby avoiding the failure of the memory alloy part 40 due to the stuck state. After the memory alloy part 40 is powered off, it stretches to its original length, and the first connecting part 31 and the second connecting part 32 can be reconnected together. When the friction between the locking part 21 and the second shell 52 is reduced, that is, when the hand holding force is reduced, the locking mechanism 1 can return to the normal working state and move.

[0123] In summary, the locking mechanism 1 provided in this embodiment can not only realize the locking function, but also effectively protect the memory alloy component 40 in the stuck state, solve the failure problem in the stuck state, and protect the memory alloy component 40 from damage.

[0124] In this embodiment, when the memory alloy member 40 contracts, the pulling force on the first connecting member 31 is greater than the connecting force between the first connecting member 31 and the second connecting member 32 .

[0125] 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 connector 31 and the second connector 32 are connected, a connecting force F1 is generated between the first connector 31 and the second connector 32. At the same time, when the memory alloy part 40 is energized, the memory alloy part 40 contracts, and at this time, the memory alloy part 40 will pull the first connector 31 backward, so the memory alloy part 40 will generate a pulling force F2 on the first connector 31. In this embodiment, F2>F1, so that when the locking mechanism 1 is in a stuck state, the contraction of the memory alloy part 40 can drive the first connector 31 and the second connector 32 to separate, thereby effectively protecting the memory alloy part 40.

[0126] 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 on the first connection member 31 when the memory alloy member 40 contracts. In other words, this embodiment can make F1 as large as possible on the basis that F1 is smaller than F2, which is conducive to the normal sliding of the locking mechanism 1 in the sliding state and prevents the first connection member 31 from being separated from the second connection member 32.

[0127] In this embodiment, the first fixing member 11 is used to be fixed to the first shell 51, and the locking member 21 is used to be locked to the second shell 52, and the first shell 51 is slidably connected to the second shell 52; when the locking mechanism 1 is in the stuck state, the friction force between the locking member 21 and the second shell 52 is greater than the connection force between the first connecting member 31 and the second connecting member 32.

[0128] As can be seen from the above, when the locking mechanism 1 is in a stuck state, a friction force F3 is generated between the locking member 21 and the second housing 52. In this embodiment, F3>F1 can be made, so that the locking mechanism 1 can be in the stuck state mentioned above. Even if the maximum connection force is reached between the first connecting member 31 and the second connecting member 32, the locking mechanism 1 cannot be pulled, that is, the first connecting member 31 cannot pull the second connecting member 32 to slide. In this way, if the force applied by the first connecting member 31 to the second connecting member 32 is greater than the connection force between the first connecting member 31 and the second connecting member 32, the first connecting member 31 and the second connecting member 32 can be made to be connected, thereby effectively protecting the memory alloy member 40.

[0129] In addition, the present embodiment does not limit the relationship between the pulling force F2 on the first connecting member 31 when the memory alloy member 40 contracts and the friction force F3 between the locking member 21 and the second housing 52. In one embodiment, F2 may be greater than F3, in another embodiment, F2 may be less than F3, and in other embodiments, F2 may be equal to F3.

[0130] Please refer to Figure 17-Figure 18 , Fig.17 It is a schematic diagram of the three-dimensional structure of the locking mechanism in another embodiment of the present application. Fig.18 for Fig.17 In this embodiment, the fixing assembly 10 includes a first fixing member 11 and a third fixing member 12 spaced apart from the first fixing member 11, the locking assembly 20 is slidably connected to the first fixing member 11 and the third fixing member 12, and the first connecting member 31 and the second connecting member 32 are arranged on the third fixing member 12.

[0131] The first fixing member 11 has been described in detail above, and this embodiment will not be repeated here. The third fixing member 12 is mainly used to install various components of the connecting assembly 30. Optionally, in one embodiment, the third fixing member 12 can be fixed on the first shell 51 like the first fixing member 11. In another embodiment, the third fixing member 12 may not be fixed on any component. This embodiment is only schematically illustrated by the third fixing member 12 being fixed on the first shell 51. Specifically, a second through hole 120 can be opened on the third fixing member 12 and the first shell 51, and then the third fixing member 12 can be fixed to the first shell 51 by screws. In this embodiment, the first connecting member 31 and the second connecting member 32 are arranged on the third fixing member 12 to realize the assembly of the connecting assembly 30. And the locking assembly 20 is slidably connected to the first fixing member 11 and the third fixing member 12, so that the locking assembly 20 can be connected to the second connecting member 32 arranged on the third fixing member 12.

[0132] Please refer again Figure 17-Figure 18 In this embodiment, the connecting component 30 also 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 the first end 401. The opposite ends of the first elastic member 34 respectively abut the first mounting member 33 and the third fixing member 12 so that the first connecting member 31 is slidably connected to the third fixing member 12.

[0133] When the memory alloy component 40 contracts, it can drive the first connecting component 31 and the first mounting component 33 to move in a direction away from the second connecting component 32, and make the first elastic component 34 in a compressed state; when the memory alloy component 40 extends, it cooperates with the first elastic component 34 in a compressed state, so that the first connecting component 31 and the first mounting component 33 both move in a direction close to the second connecting component 32 and make the first connecting component 31 connected to the second connecting component 32.

[0134] 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 to mount the first connecting member 31 and the memory alloy member 40, and the first elastic member 34 is mainly used to provide elastic force for extension.

[0135] In this embodiment, the first connecting member 31 and the first end 401 can be installed on the first mounting member 33, and the first connecting member 31 can be slidably connected to the third fixing member 12. Therefore, the third fixing member 12 not only provides the function of installing the connecting component 30, but also provides the function of sliding guidance and positioning for the first connecting member 31. And the opposite ends of the first elastic member 34 respectively abut the first mounting member 33 and the third fixing member 12. It is worth noting that the abutment mentioned in this embodiment and below means that as long as they can be in contact, as for the specific abutment, it can be abutment, fixed connection, bonding, etc.

[0136] Through the above arrangement, when the locking mechanism 1 is in a stuck state, the memory alloy member 40 is energized to shrink the memory alloy member 40, driving the first mounting member 33 connected to the first end 401 to move in a direction away from the second connecting member 32, thereby driving the first connecting member 31 mounted on the first mounting member 33 to separate from the second connecting member 32 and also slide in a direction away from the second connecting member 32. At the same time, since the third fixing member 12 usually remains stationary, the first mounting member 33 can compress the first elastic member 34 during the sliding process, so that the first elastic member 34 is in a compressed state. At this time, the first elastic member 34 has a tendency to return to its original state and gives the first mounting member 33 an elastic force in the direction of the second connecting member 32, but since the first mounting member 33 is always pulled by the shrunk memory alloy member 40, the first mounting member 33 cannot move. However, when the power is cut off to the memory alloy member 40, the memory alloy member 40 stretches to its original length. At this time, the length of the memory alloy member 40 increases and it can no longer pull the first mounting member 33. The first mounting member 33 can move in the direction close to the second connecting member 32 under the elastic force given by the first elastic member 34, thereby driving the first connecting member 31 and the first end 401 to move in the direction close to the second connecting member 32 synchronously, and finally reconnecting the first connecting member 31 to the second connecting member 32, and pulling the stretched memory alloy member 40 to its original state. 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 to achieve locking and unlocking. If the locking mechanism 1 is still in a stuck state, repeat the above operation to effectively protect the memory alloy member 40.

[0137] Optionally, the first elastic member 34 can be in a variety of states when the memory alloy member 40 is not powered on. For example, in one embodiment, the first elastic member 34 is in a balanced state, and in another embodiment, the first elastic member 34 is already in a compressed state, so that the elastic force of the first elastic member 34 can be used to make the first mounting member 33 tighten the memory alloy member 40, so that the memory alloy member 40 is in a pre-tensioned state, and it is beneficial to shrink the memory alloy member 40 after the memory alloy member 40 is powered on.

[0138] Optionally, the first connecting member 31 may be bonded to the first mounting member 33 .

[0139] Please refer to Fig.19 , Fig.19 Schematic diagram of the exploded structure of the third fixing member in one embodiment of the present application. In this embodiment, the third fixing member 12 has a receiving space 126, at least a portion of the first connecting member 31, at least a portion of the second connecting member 32, at least a portion of the first mounting member 33, and the first elastic member 34 are disposed in the receiving space 126, and the locking member 21 passes through the side wall of the receiving space 126 and is connected to the second connecting member 32.

[0140] The third fixing member 12 may have a receiving space 126, so that at least part of the first connecting member 31, at least part of the second connecting member 32, at least part of the first mounting member 33, and the first elastic member 34 are installed in the receiving space 126. At the same time, the locking member 21 can penetrate the third fixing member 12 and enter the receiving space 126 to connect with the second connecting member 32. In this way, the various components of the connecting assembly 30 can be effectively protected and the difficulty of assembly can be reduced.

[0141] Optionally, the third fixing member 12 includes a first fixing portion 12a and a second fixing portion 12b, and the first fixing portion 12a and the second fixing portion 12b are split structures, the first connecting member 31 is slidably connected to the first fixing portion 12a, and the first elastic member 34 is supported on the second fixing portion 12b. The split structure means that the first fixing portion 12a and the second fixing portion 12b are prepared separately, and then the first fixing portion 12a and the second fixing portion 12b are connected together in various ways, which can further reduce the difficulty of installing the connecting component 30 in the third fixing member 12, and facilitate installation and disassembly. Of course, in other embodiments, the first fixing portion 12a and the second fixing portion 12b can also be an integrated structure, that is, the first fixing portion 12a and the second fixing portion 12b are prepared through a process, but for ease of understanding, different areas are artificially named differently.

[0142] 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 end 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. In this way, 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 a receiving space 126 with an opening on one side, which not only facilitates the installation and disassembly of the connecting assembly 30, but also provides a basis for the subsequent installation of the first mounting member 33. Optionally, a third through hole 127 may be provided on the fourth plate body 124 , so that the locking member 21 passes through the third through hole 127 to connect with the second connecting member 32 .

[0143] The fifth plate 125 is bent and connected to the second plate 122 or the third plate 123 . The fifth plate 125 may be provided with a second through hole 120 , so that the third fixing member 12 can be fixed to the first housing 51 by the fifth plate 125 .

[0144] Optionally, the first plate body 121 , the second plate body 122 , the third plate body 123 , the fourth plate body 124 , and the fifth plate body 125 may be an integrated structure or a split structure, which is not limited in this embodiment.

[0145] Please refer to Fig. 20 , Fig. 20 1 is an exploded schematic diagram of the third fixing member, the first connecting member, and the second connecting member in one embodiment of the present application. In this embodiment, the first connecting member 31 and the third fixing member 12 are connected by the first slider 3111 and the first slide groove 1221, the first slider 3111 is provided at one of the first connecting member 31 and the side wall of the receiving space 126, and the first slide groove 1221 is provided at the other of the first connecting member 31 and the side wall of the receiving space 126.

[0146] In this embodiment, the first connecting member 31 and the third fixing member 12 can cooperate with each other through the first slider 3111 and the first slide groove 1221 to achieve the sliding connection of the first connecting member 31 to the third fixing member 12. Specifically, when the first slider 3111 is provided on the first connecting member 31, the first slide groove 1221 is provided on the side wall of the receiving space 126. When the first slider 3111 is provided on the side wall of the receiving space 126, the first groove is provided on the first connecting member 31. This embodiment is only schematically described with the first slider 3111 provided on the first connecting member 31 and the first slide groove 1221 provided on the side wall of the receiving space 126.

[0147] Specifically, the ends of the first connecting member 31 at opposite ends can serve as the first sliding block 3111, and the first sliding groove 1221 can be provided on at least one of the second plate 122 and the third plate 123 of the first fixing portion 12a in the third fixing member 12, and the extension direction of the first sliding groove 1221 is parallel to the length direction of the memory alloy member 40. In this way, the end of the first connecting member 31 is arranged in the first sliding groove 1221, and when the memory alloy member 40 contracts, it can slide in the first sliding groove 1221 with the first connecting member 31 on the first mounting member 33.

[0148] Optionally, the first sliding groove 1221 may penetrate at least one of the second plate body 122 and the third plate body 123 .

[0149] Please refer again Fig. 20 In this embodiment, the second connecting member 32 and the third fixing member 12 are connected by means of a second slider 3211 and a second slide groove 1222. The second slider 3211 is disposed at one of the side walls of the second connecting member 32 and the receiving space 126, and the second slide groove 1222 is disposed at the other of the side walls of the second connecting member 32 and the receiving space 126.

[0150] In this embodiment, the second connecting member 32 and the third fixing member 12 can cooperate with each other through the second slider 3211 and the second slide groove 1222 to achieve the second connecting member 32 sliding connection with the third fixing member 12. Specifically, when the second slider 3211 is provided on the second connecting member 32, the second slide groove 1222 is provided on the side wall of the receiving space 126. When the second slider 3211 is provided on the side wall of the receiving space 126, the first groove is provided on the second connecting member 32. This embodiment is only schematically described with the second slider 3211 provided on the second connecting member 32 and the second slide groove 1222 provided on the side wall of the receiving space 126.

[0151] Specifically, the ends of the second connecting member 32 at opposite ends can serve as the second slider 3211, and the second slide groove 1222 can be provided on at least one of the second plate 122 and the third plate 123 of the first fixing portion 12a in the third fixing member 12, and the extension direction of the second slide groove 1222 is parallel to the length direction of the memory alloy member 40. In this way, the end of the second connecting member 32 is arranged in the second slide groove 1222, and when the memory alloy member 40 contracts in the normal sliding state, the second connecting member 32 on the second mounting member 36 can slide in the second slide groove 1222.

[0152] Optionally, the first slide groove 1221 and the second slide groove 1222 may be connected to each other, or it may be understood that the first slide groove 1221 and the second slide groove 1222 are an integrated structure.

[0153] Optionally, the second sliding groove 1222 may penetrate at least one of the second plate body 122 and the third plate body 123 .

[0154] Please refer to Figure 20-23 , Fig.21 It is a schematic diagram of the coordination of the third fixing member, the first connecting member, the memory alloy member, the first mounting member, and the first elastic member in one embodiment of the present application. Fig. 22 for Fig.21 A schematic diagram of the cooperation of the first connecting member, the memory alloy member, the first mounting member, and the first elastic member is shown. Fig.23 for Fig.21 The three-dimensional structural schematic diagram of the first mounting member is shown. 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 groove 3310, the first connecting member 31 is installed in the first receiving groove 3310, the second connecting portion 332 is arranged on the groove wall of the first receiving groove 3310 of the first connecting portion 331, the first end 401 is connected to the second connecting portion 332, the third connecting portion 333 is arranged on the side of the first connecting portion 331 away from the first connecting member 31, the first elastic member 34 is sleeved on the third connecting portion 333, and the opposite ends of the first elastic member 34 respectively abut against the side of the first connecting portion 331 away from the first connecting member 31 and the side wall of the third fixing member 12.

[0155] The first mounting member 33 may include three connecting parts: a first connecting part 331, a second connecting part 332, and a third connecting part 333, wherein the first connecting part 331 has a first receiving groove 3310 on one side close to the second connecting part 32, and a portion of the first connecting part 31 may be installed in the first receiving groove 3310, and the first slider 3111 at the end of the first connecting part 31 is exposed so that the first slider 3111 can be installed in the first sliding groove 1221. The second connecting part 332 is fixedly arranged on one side of the first connecting part 331 and protrudes from the opening of the first fixing part 12a, so as to facilitate the installation of the first end 401 on the second connecting part 332. The third connecting part 333 is arranged on the side of the first connecting part 331 away from the first connecting part 31, and is arranged adjacent to the second connecting part 332, that is, the first receiving groove 3310, the second connecting part 332, and the third connecting part 333 are arranged on different sides of the first connecting part 331. The first elastic member 34 is sleeved on the third connecting portion 333, so that one end of the first elastic member 34 abuts against the side of the first connecting portion 331 away from the first connecting member 31 and the side wall of the receiving space 126, i.e., the second fixing portion 12b. The above design allows the first mounting member 33 to better assemble the first connecting member 31, the memory alloy member 40, and the first elastic member 34 together.

[0156] Optionally, a fourth through hole 128 may be provided on the second fixing portion 12b, and the third connecting portion 333 may be inserted into the fourth through hole 128, so that when the memory alloy part 40 contracts, the first mounting part 33 can slide as a whole in a direction away from the second connecting part 32, thereby preventing the second fixing portion 12b from interfering with the third connecting portion 333.

[0157] The above content mentions that the first connecting member 31 and the second connecting member 32 are detachably connected. This application provides three specific implementations. Please refer to Fig.24 , Fig.24 This is a schematic diagram of an exploded view of a connection assembly in one embodiment of the present application. In this embodiment, the connection assembly 30 further includes an adhesive member 35, the surface of the first connection member 31 close to the second connection member 32 is a first surface 310, and the surface of the second connection member 32 close to the first connection member 31 is a second surface 320, and the adhesive member 35 is provided on at least one of the first surface 310 and the second surface 320, so that the first connection member 31 can be detachably connected to the second connection member 32.

[0158] In the first embodiment, the surface of the first connecting member 31 close to the second connecting member 32 can be understood as the first surface 310, and similarly, the surface of the second connecting member 32 close to the first connecting member 31 can be understood as the second surface 320. The connecting assembly 30 may also include an adhesive member 35. In this embodiment, 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. This embodiment is only schematically described by assuming that the adhesive member 35 is disposed on both the first surface 310 and the second surface 320.

[0159] In this embodiment, the first connecting member 31 and the second connecting member 32 are bonded together by using the viscosity of the bonding member 35. When the locking mechanism 1 is in a stuck state, the first connecting member 31 can also be separated from the second connecting member 32 to protect the memory alloy member 40. At the same time, when the first connecting member 31 is extended, the first bonding member 35 can be reconnected with the second connecting member 32.

[0160] Please refer to Fig.25 , Fig.25 This is a schematic diagram of an exploded view of a connection assembly in another embodiment of the present application. In this embodiment, the first connection member 31 is provided with a first buckle portion 311, and the second connection member 32 is provided with a second buckle portion 321, and the first buckle portion 311 and the second buckle portion 321 cooperate with each other so that the first connection member 31 can be detachably connected to the second connection member 32.

[0161] In the second embodiment, a first buckle portion 311 may be provided on the first connector 31, and a second buckle portion 321 may be provided on the second connector 32. In this embodiment, the first buckle portion 311 and the second buckle portion 321 may cooperate with each other to connect the first connector 31 and the second connector 32. When the locking mechanism 1 is in a stuck state, the first buckle portion 311 and the second buckle portion 321 may also be separated to separate the first connector 31 and the second connector 32, thereby protecting the memory alloy member 40. At the same time, when the first connector 31 is extended, the first buckle portion 311 and the second buckle portion 321 may be buckled and connected together again.

[0162] Please refer to Fig.26 , Fig.26 This is a schematic diagram of an exploded view of a connection assembly in another embodiment of the present application. In this embodiment, both the first connection member 31 and the second connection member 32 are magnetic, and the first connection member 31 and the second connection member 32 attract each other. When the memory alloy member 40 contracts, it can drive the first connection member 31 and the second connection member 32 to separate; when the memory alloy member 40 stretches, the first connection member 31 and the second connection member 32 attract each other, so that the first connection member 31 moves in a direction close to the second connection member 32 and the first connection member 31 is magnetically connected to the second connection member 32.

[0163] In the third embodiment, the first connector 31 and the second connector 32 do not need to be provided with any components, and only need to make the first connector 31 and the second connector 32 themselves magnetic, and the first connector 31 and the second connector 32 attract each other. Specifically, the side of the first connector 31 close to the second connector 32 is one of the N pole and the S pole. The side of the second connector 32 close to the first connector 31 is the other of the N pole and the S pole. In this way, the first connector 31 and the second connector 32 can be connected together by utilizing the mutual attraction between the N pole and the S pole. When the locking mechanism 1 is in a stuck state, the contraction energy of the memory alloy member 40 can drive the magnetically connected first connector 31 and the second connector 32 to separate. When the memory alloy member 40 is extended, since the first connector 31 and the second connector 32 have the ability to attract each other, the connector can automatically move in the direction close to the second connector 32 and make the first connector 31 magnetically connected to the second connector 32.

[0164] In addition, it is worth noting that the first elastic member 34 is necessary in the first and second embodiments, that is, the first elastic member 34 must be used to stretch the first connecting member 31 so that the first connecting member 31 can be reconnected to the second connecting member 32. However, the first elastic member 34 is not necessary in the third embodiment. The first connecting member 31 and the second connecting member 32 can rely on magnetic attraction. When the memory alloy member 40 is extended to its original length, the first connecting member 31 can automatically move toward the direction of the second connecting member 32 and reconnect the first connecting member 31 and the second connecting member 32 together magnetically. However, if the first elastic member 34 is added, it can also further promote the first connecting member 31 to move toward the direction of the second connecting member 32 on this basis, thereby reducing the difficulty of sliding the first connecting member 31.

[0165] Please refer to Figure 27-Figure 29 , Fig. 27 It is a schematic diagram of the coordination of the locking member, the third fixing member, the second mounting member, and the second connecting member in one embodiment of the present application. Fig.28 for Fig. 27 Schematic diagram of the cooperation between the middle locking member, the second mounting member, and the second connecting member. Fig.29 for Fig. 27 Schematic diagram of the exploded view of the locking member, the third fixing member, the second mounting member, and the second connecting member. In this embodiment, the connecting assembly 30 further includes a second mounting member 36, the third fixing member 12 has a receiving space 126, at least a portion of the first connecting member 31, at least a portion of the second connecting member 32, and at least a portion of the second mounting member 36 are disposed in the receiving space 126, one side of the second mounting member 36 has a second receiving groove 360, the second connecting member 32 is mounted in the second receiving groove 360, the second connecting member 32 is slidably connected to the third fixing member 12, and the locking assembly 20 passes through the side wall of the receiving space 126 and is connected to the other side of the second mounting member 36.

[0166] The third fixing member 12 of the fixing assembly 10 has been described in detail above, and this embodiment will not be repeated here. In addition to the first connecting member 31 and the second connecting member 32, the connecting assembly 30 may also include a second mounting member 36. The second mounting member 36 is used to install the second connecting member 32. In this embodiment, a second receiving groove 360 ​​can be opened on the side of the second mounting member 36 close to the first connecting member 31, and at least part of the second connecting member 32 is arranged in the second receiving groove 360. At the same time, the second connecting member 32 is slidably connected to the third fixing member 12. Therefore, the third fixing member 12 not only provides the function of installing the connecting assembly 30, but also provides the second connecting member 32 with the function of sliding guidance and positioning.

[0167] In addition, for the locking assembly 20, the locking member 21 can penetrate the side wall of the receiving space 126, that is, the fourth plate 124, and be connected to the other side of the second mounting member 36. Optionally, a fifth through hole 361 can be opened on the second mounting member 36 and the locking member 21, and then the locking member 21 and the second mounting member 36 can be detachably connected together by using a pin 362. Further optionally, a groove can be provided on the second mounting member 36, and the end of the locking member 21 is arranged in the groove, so that the thickness of the locking member 21 when it is matched with the second mounting member 36 can be reduced. In this embodiment, the second mounting member 36 provided above can be used to facilitate the assembly of the second connecting member 32 and the locking member 21 together.

[0168] Optionally, the second connecting member 32 may be bonded to the second mounting member 36 .

[0169] Please refer to Figure 30-Figure 31 , Fig.30 Schematic diagram of the cooperation between the locking member and the first fixing member in one embodiment of the present application. Fig.31 for Fig.30 The exploded schematic diagram of the locking member and the first fixing member is shown. In this embodiment, the fixing assembly 10 has a sliding space 111 , and the locking assembly 20 passes through the sliding space 111 and is connected to the first end 401 .

[0170] Among them, the locking mechanism 1 has a sliding state when the locking component 20 slides relative to the fixed component 10. When the locking mechanism 1 is in the sliding state, the contraction of the memory alloy part 40 can drive the locking component 20 to slide relative to the fixed component 10, thereby causing at least a portion of the locking component 20 to contract within the sliding space 111.

[0171] The first fixing member 11 may be provided with sliding holes penetrating opposite sides of the first fixing member 11, i.e., sliding spaces 111. The locking member 21 includes a locking tongue 210 and a fourth connecting portion 211 connected to each other. The locking tongue 210 is used to be subsequently connected to the second housing 52, and the fourth connecting portion 211 is used to be connected to the second connecting member 32. Specifically, the fourth connecting portion 211 penetrates the sliding space 111 of the first fixing member 11, and at the same time penetrates the third through hole 127 on the fourth plate body 124 to be connected to the second connecting member 32, thereby realizing the connection with the first end 401.

[0172] As can be seen from the above content, when the locking mechanism 1 is not in a stuck state, the locking member 21 can slide relative to the first fixing member 11, and the locking mechanism 1 is in a sliding state. When the memory alloy member 40 is energized, the memory alloy member 40 contracts and drives the first connecting member 31 to slide. Since the first connecting member 31 is connected to the second connecting member 32 and the locking mechanism 1 is not in a stuck state, the first connecting member 31 can drive the second connecting member 32 to slide synchronously, thereby driving the locking member 21 to slide relative to the first fixing member 11, so that the lock tongue 210 of the locking member 21 is separated from the second housing 52 to achieve unlocking, and finally at least part of the lock tongue 210 is contracted in the sliding space 111 of the first fixing member 11. Therefore, the present embodiment can use the sliding space 111 to provide guidance and positioning for the locking member 21 when the locking member 21 can slide.

[0173] Optionally, the locking tongue 210 and the fourth connecting portion 211 may be an integrated structure or a split structure, which is not limited in this embodiment.

[0174] Please refer to Figure 32-Figure 33 , Fig.32 Schematic diagram of an exploded view of a locking member, a first fixing member, and a second elastic member in one embodiment of the present application. Fig.33 This is an implementation method of the present application Fig.32 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 locking tongue 210 and a fourth connecting portion 211 connected to the locking tongue 210, the second elastic member 22 is sleeved on the fourth connecting portion 211, and opposite ends of the second elastic member 22 respectively abut against the locking tongue 210 and the side wall of the sliding space 111.

[0175] Among them, when the locking mechanism 1 is in the sliding state and at least part of the lock tongue 210 is contracted in the sliding space 111, the second elastic member 22 is in a compressed state; when the memory alloy member 40 is stretched, it can cooperate with the compressed second elastic member 22 to make at least part of the lock tongue 210 extend out of the sliding space 111.

[0176] The locking assembly 20 may include a second elastic member 22 in addition to the locking member 21. The second elastic member 22 may be sleeved on the fourth connecting member, and the opposite ends of the second elastic member 22 respectively abut against the locking tongue 210 and the side wall of the sliding space 111. It is worth noting that the abutment mentioned in this embodiment and below means that as long as there is contact, the abutment may be abutment, fixed connection, bonding, etc.

[0177] When the locking mechanism 1 is in a sliding state and the memory alloy member 40 contracts, it can drive the first connecting member 31, the second connecting member 32, and the locking member 21 to slide. During the sliding process of the locking member 21, the second elastic member 22 can be compressed, so that the second elastic member 22 is in a compressed state. At this time, the second elastic member 22 has a tendency to return to its original state and gives the lock tongue 210 a reverse elastic force, but because the lock member 21 is always pulled by the contracted memory alloy member 40, the lock member 21 cannot move. However, when the memory alloy member 40 is powered off, the memory alloy member 40 extends to its original length. At this time, the length of the memory alloy member 40 increases and it can no longer pull the locking member 21. The locking member 21 can slide in the opposite direction under the elastic force given by the second elastic member 22, so that at least part of the lock tongue 210 extends out of the sliding space 111, so that the lock tongue 210 can be reconnected with the second shell 52 to achieve the locking function. When the locking member 21 slides in the reverse direction, the first connecting member 31 and the second connecting member 32 can be driven to move in a direction close to the first fixing member 11 , and the stretched memory alloy member 40 can be pulled back to its original state.

[0178] Optionally, the second elastic member 22 can be in a variety of states when the memory alloy member 40 is not powered on. 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 tighten the memory alloy member 40, so that the memory alloy member 40 is in a pre-tensioned state, and it is beneficial to shrink the memory alloy member 40 after the memory alloy member 40 is powered on.

[0179] Please refer to Fig.34 , Fig.34 1 is a cross-sectional view of a locking member, a first fixing member, and a second elastic member in another embodiment of the present application. A stopper 112 is disposed on the inner side wall of the sliding space 111 , and the stopper 112 can abut against the locking tongue 210 .

[0180] In this embodiment, a stopper 112 may be provided on the inner wall of the sliding space 111. When the locking tongue 210 slides a certain distance, it may contact the stopper 112, so that the locking tongue 210 cannot move any further. In this embodiment, the stopper 112 may be provided to effectively control the maximum sliding distance of the locking tongue 210.

[0181] In addition, after the stop portion 112 is provided, the above-mentioned jamming situation may occur when the memory alloy part 40 contracts when energized because the locking piece 21 will abut against the stop portion 112. At this time, the resistance value of the memory alloy part 40 can be detected in real time, and the jamming state can be detected according to the change of the resistance value, and the current can be reduced to maintain the state or the power can be directly cut off.

[0182] Please refer to Fig.35, Fig.35 The cross-sectional schematic diagram of the locking mechanism in one embodiment of the present application includes two first fixing members, two locking members, and two memory alloy members. In this embodiment, the locking mechanism 1 includes two fixing components 10 and two locking components 20 arranged in an axisymmetric manner, and the inner side wall of the sliding space 111 of each fixing component 10 is provided with the stop portion 112, and when one locking component 20 slides a first preset distance relative to one fixing component 10, it abuts against one stop portion 112, and when another locking component 20 slides a second preset distance relative to another fixing component 10, it abuts against another stop portion 112; wherein, the first preset distance is equal to the second preset distance.

[0183] The locking mechanism 1 of this embodiment may include two fixing components 10, two locking components 20, two memory alloy parts 40, and two connecting components 30. The two components are used to position the second housing 52 on both sides of the opposite sides, so as to further improve the positioning effect of the second housing 52. Each set of fixing components 10 includes a first fixing component 11, and each set of locking components 20 includes a locking component 21. In other words, the locking mechanism 1 may include two first fixing components 11 and two locking components 21. One first fixing component 11, one locking component 21, and another first fixing component 11 and another locking component 21 are arranged axially symmetrically, and a stopper 112 is provided in the sliding space 111 of each first fixing component 11. For one first fixing component 11 and one locking component 21, one locking component 21 can slide a first preset distance relative to one fixing component so as to abut against one stopper 112. For another first fixing component 11 and another locking component 21, another locking component 21 can slide a second preset distance relative to another fixing component so as to abut against another stopper 112.

[0184] Based on this, the present embodiment can make the first preset distance equal to the second preset distance, even if the sliding end position of one locking member 21 is the same as that of the other locking member 21. Since the initial positions of the two locking members 21 when not sliding are also the same, the present embodiment can make the two locking members 21 slide the same distance, in other words, make the memory alloy member 40 contract the same distance, so that the memory member takes the same time to return to the original length when stretched, and then make the time when the two locking members 21 slide to the initial position 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, so as to avoid the situation where one locking member 21 is connected to the second housing 52 when the other locking member 21 is not yet connected to the second housing 52.

[0185] Please refer to Figure 3-Figure 8 , Fig.31 , Figure 36-Figure 37 , Fig.36 for Figure 4 Schematic diagram of the second shell and the locking mechanism being locked. Fig.37 for Fig.36 The present embodiment provides a housing assembly 2, comprising a first housing 51, a second housing 52, and a locking mechanism 1 as provided in the above embodiment of the present application, wherein the first housing 51 is slidably connected to the second housing 52, the fixing assembly 10 of the locking mechanism 1 is fixed to the first housing 51, the winding end 403 of the memory alloy member 40 in the locking mechanism 1 is wound around the winding portion 510 of the first housing 51, and the second end 402 is fixed to the first housing 51; the locking assembly 20 of the locking mechanism 1 is provided with a first locking portion 212, and the second housing 52 is provided with at least one second locking portion 520.

[0186] In which, the shell component 2 has a sliding state when the locking component 20 slides relative to the fixing component 10. When the shell component 2 is in the sliding state, the shell component 2 has a locked state when the first locking part 212 is connected to the second locking part 520, and an unlocked state when the first locking part 212 is separated from the second locking part 520.

[0187] The housing assembly 2 provided in this embodiment can be applied to various fields, such as electronic equipment 3, vehicle field, mechanical field, etc. This embodiment is only schematically described by applying the housing assembly 2 to the field of electronic equipment 3, and the application of the housing assembly 2 to other fields should also fall within the protection scope of this application.

[0188] The first shell 51 can be understood as the fixed center frame mentioned above. The first shell 51 is usually fixed, and the second shell 52 can be understood as the moving center frame mentioned above. The second shell 52 can slide relative to the first shell 51 by various methods. The first fixing member 11 in the locking mechanism 1 is fixed to the first shell 51, and the second end 402 of the memory alloy member 40 is also fixed to the first shell 51. The locking member 21 of the locking mechanism 1 is provided with a first locking portion 212, and the second shell 52 is provided with at least one second locking portion 520. Optionally, the first locking portion 212 can be the end of the locking tongue 210 in the locking member 21, and the second locking portion 520 can be a locking groove 524 of the second shell 52. For example, a positioning bar 521 is provided on one side of the second housing 52 close to the locking mechanism 1, and a positioning groove 522 is provided on the positioning bar 521. The locking mechanism 1 also includes a block 523, and the block 523 is arranged in the positioning groove 522, so that the block 523 and the positioning bar 521 can be surrounded to form a locking groove 524. In addition, the sliding direction of the locking member 21 is perpendicular to the sliding direction of the second housing 52, so the first locking portion 212 and the second locking portion 520 can cooperate with each other to achieve the unlocking and locking of the housing assembly 2. The locking position can be set according to user needs or program design. For example, the locking position can be set according to the video ratio and the game ratio.

[0189] Specifically, when the memory alloy member 40 is not powered on, the lock tongue 210 is inserted into the locking groove 524, 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 lock tongue 210 and the positioning strip 521 or the stopper 523 in the locking groove 524 is small, the memory alloy member 40 is powered on to shrink the memory alloy member 40, and the memory alloy member 40 can drive 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 lock tongue 210 is arranged outside the locking groove 524, so that the second housing 52 is no longer restricted by the locking member 21 in the locking mechanism 1, so that the second housing 52 can slide relative to the first housing 51. The state at this time can be understood as an unlocked state.

[0190] When the second housing 52 needs to be locked or the second housing 52 slides to the locked position, the memory alloy member 40 can be powered off to extend to its original length, and the locking member 21 slides forward, so that the first locking portion 212 of the locking member 21 is reconnected to the second locking portion 520 on the second housing 52, and the locking tongue 210 is reset in the locking groove 524, and the second housing 52 is fixed by the locking tongue 210 to achieve the locking function. This state can be understood as a locked state.

[0191] The housing assembly 2 provided in this embodiment, by adopting the locking mechanism 1 provided in the above embodiment of the present application, can not only realize the locking function, but also fix the second housing 52 when the first housing 51 and the second housing 52 need to be locked. In addition, when the space of the whole machine is limited, the effective length of the memory alloy part 40 can be increased to solve the problem of insufficient length of the memory alloy part 40. The sliding distance of the locking part 21 is increased, the difficulty of locking and unlocking the locking part 21 and the second housing 52 is reduced, and the service life of the memory alloy part 40 is increased.

[0192] Please refer again Fig.37 In this embodiment, when the second shell 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 shell 52 relative to the first shell 51 .

[0193] 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, thereby achieving the positioning of the second housing 52. In other words, the second housing 52 can only be locked when the first locking portion 212 is exactly corresponding to the second locking portion 520, that is, the second housing 52 has only one locking position.

[0194] When a plurality of second locking parts 520 are provided on the second shell 52, and the arrangement direction of the plurality of second locking parts 520 is parallel to the sliding direction of the second shell 52 relative to the first shell 51, the plurality of second locking parts 520 can be located at different positions of the second shell 52 along the sliding direction of the second shell 52, so that the second shell 52 can correspond to the first locking part 212 at multiple positions, thereby realizing the locking function. In other words, the shell assembly 2 provided in this embodiment can realize multi-level locking by providing a plurality of second locking parts 520 on the second shell 52, so that the second shell 52 can be locked at multiple positions during the sliding process, so that the shell assembly 2 has a variety of different sizes that can be adjusted to meet the diverse needs of users.

[0195] Please refer to Fig.38 , Fig.38 It is a partial schematic diagram of the first shell in one embodiment of the present application. In this embodiment, at least a portion of the outer peripheral side of the winding portion 510 has a limiting groove 511, and at least a portion of the winding end 403 is disposed in the limiting groove 511. In this embodiment, a limiting groove 511 can be provided on the peripheral side surface of the winding portion 510, so that the winding end 403 is disposed in the limiting groove 511, so that the limiting groove 511 can be prevented from sliding along the axial direction of the winding portion 510 when the limiting groove 511 is contracted or extended, or when the housing assembly 2 falls or collides, thereby improving the positioning effect of the memory alloy part 40.

[0196] Please refer to Fig.39 , Fig.39 It is a partial schematic diagram of the first shell in one embodiment of the present application. In this embodiment, the first shell 51 is provided with a bearing portion 512, and the winding portion 510 is provided on one side of the bearing portion 512, and a limiting portion 513 is convexly provided on the outer periphery of one end of the winding portion 510 away from the bearing portion 512. In this embodiment, a circle of limiting portions 513 can be convexly provided at the end of the winding portion 510 away from the bearing portion 512, and the limiting portion 513 can be used to abut and limit the winding end 403. If the winding end 403 slides in the axial direction of the winding portion 510, the limiting portion 513 can be used to prevent the winding end 403 from being separated from the winding portion 510, thereby making the memory alloy part 40 invalid, thereby improving the connection effect between the memory alloy part 40 and the winding portion 510.

[0197] Please refer to Figure 40-41 , Fig.40 It is a schematic diagram of the three-dimensional structure of an electronic device in one embodiment of the present application. Fig.41 for Fig.40 The present embodiment provides an electronic device 3, comprising a processor, a power supply module, and a housing assembly 2 as provided in the above embodiment of the present application, wherein the processor is electrically connected to the power supply module, and the power supply module is electrically connected to the memory alloy member 40 in the housing assembly 2, and the processor is used to control the power supply module to power on or off the memory alloy member 40, so as to make the memory alloy member 40 contract or extend.

[0198] When the memory alloy component 40 is powered on, the memory alloy component 40 contracts to separate the first locking portion 212 from the second locking portion 520 ; when the memory alloy component 40 is powered off, the memory alloy component 40 extends to connect the first locking portion 212 to the second locking portion 520 .

[0199] The electronic device 3 provided in this embodiment includes but is not limited to mobile terminals such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, and fixed terminals such as digital TVs and desktop computers. This embodiment does not limit the type of electronic device 3. This embodiment only schematically illustrates that the electronic device 3 is a scroll-type electronic device 3.

[0200] The electronic device 3 includes a processor, a housing assembly 2 provided in the above embodiment, and a flexible screen 60. One end of the flexible screen 60 is fixed to one side of the first housing 51, and the other end of the flexible screen 60 extends from the first housing 51 to one side of the second housing 52, and then goes around from one end of the second housing 52 away from the first housing 51 to the other side of the second housing 52. In this way, when the second housing 52 slides relative to the first, for example, when the second housing 52 is unfolded relative to the first housing 51, at least part of the flexible screen 60 disposed on the other side of the second housing 52 can be rotated to one side of the flexible screen 60, thereby increasing the size of the electronic device 3 while increasing the area of ​​the exposed flexible screen 60, thereby increasing the display area. When the second housing 52 shrinks relative to the first housing 51, the exposed part of the flexible screen 60 can be rotated to the other side of the flexible screen 60 to be hidden, thereby reducing the size of the electronic device 3 while reducing the area of ​​the exposed flexible screen 60, thereby reducing the display surface.

[0201] 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 added, and the processor can be used to drive the driving member to move, and then the driving member can be used to control the second housing 52 to slide relative to the first housing 51.

[0202] In this embodiment, the size of the electronic device 3 is changed by adopting the above structure, thereby changing the display area, and the locking mechanism 1 is used to position the second housing 52 to achieve the locking function and keep the electronic device 3 stable.

[0203] Specifically, when the memory alloy member 40 is not powered on, the lock tongue 210 is inserted into the locking groove 524, thereby fixing the second housing 52 so that it cannot move. At this time, the electronic device 3 has a fixed display area. When the housing assembly 2 is in a normal sliding state, that is, the friction between the end of the lock tongue 210 and the positioning bar 521 or the stopper 523 in the locking groove 524 is small, the processor controls the memory alloy member 40 to be powered on to shrink the memory alloy member 40, and the memory alloy member 40 can drive 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 lock tongue 210 is arranged outside the locking groove 524, so that the second housing 52 is no longer restricted by the locking member 21 in the locking mechanism 1, so that the second housing 52 can slide relative to the first housing 51. The state at this time can be understood as an unlocked state. Then the processor 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 can drive the second shell 52 to expand relative to the first shell 51 to increase the size and display area of ​​the electronic device 3, or the driving member can drive the second shell 52 to shrink relative to the first shell 51 to reduce the size and display area of ​​the electronic device 3.

[0204] When the second housing 52 needs to be locked or the second housing 52 slides to the locked position, the memory alloy member 40 can be powered off to extend the memory alloy member 40 to its original length, and the locking member 21 slides forward at the same time, so that the first locking portion 212 of the locking member 21 is reconnected to the second locking portion 520 on the second housing 52, even if the locking tongue 210 is reset in the locking groove 524, the locking tongue 210 is used to fix the second housing 52 to achieve the locking function. The state at this time can be understood as a locked state, and the second housing 52 can no longer slide, so that the electronic device 3 is in a stable state, the display area is also kept stable, and the user can use the display area of ​​the specific size to perform corresponding operations.

[0205] The electronic device 3 provided in this embodiment, by adopting the housing assembly 2 provided in the above embodiment of the present application, can not only realize the locking function, so that the first housing 51 and the second housing 52 can be fixed when locking is required, but also can increase the effective length of the memory alloy member 40, increase the sliding distance of the locking member 21, reduce the difficulty of locking and unlocking the locking member 21 and the second housing 52, and improve the service life of the memory alloy member 40.

[0206] In addition to the above components, the electronic device 3 may also include a stroke detection device 70 electrically connected to the processor. The stroke detection device 70 is a distance sensor for detecting the position of the second housing 52 sliding relative to the first housing 51. In other words, the stroke detection device 70 can detect the sliding distance of the second housing 52. The stroke detection device 70 can be used to enable the processor to know when the locking mechanism 1 should be controlled to lock. The present application provides two specific implementations.

[0207] Please refer again Figure 40-41 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 used to detect a sliding position of the second shell 52 relative to the first shell 51.

[0208] Among them, when the second shell 52 slides to a locked position relative to the first shell 51, the first locking portion 212 corresponds to the second locking portion 520, the stroke detection device 70 detects the position of the second shell 52 relative to the first shell 51 and sends a position signal to the processor, the processor receives the position signal and controls the power off of the memory alloy component 40, and the memory alloy component 40 stretches to make the first locking portion 212 connect to the second locking portion 520.

[0209] In the first embodiment, when the electronic device 3 is in a normal sliding state, the second housing 52 can slide relative to the first housing 51, and the position of the second locking portion 520 relative to the first locking portion 212 will change during the sliding process. When the second housing 52 slides to the locking position relative to the first housing 51, that is, when the second locking portion 520 slides to the position corresponding to the first locking portion 212, 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. After the processor receives the signal, it means that the position of the second housing 52 needs to be fixed. Therefore, the processor can send a signal to the driving member to stop the driving member, that is, the second housing 52 does not move relative to the first housing 51. At the same time, the processor sends a signal to the memory alloy member 40 to cut off the power of the memory alloy member 40 so that the memory alloy member 40 returns to its original length, and at the same time, the first locking portion 212 on the locking member 21 moves in the direction close to the second locking portion, and finally the first locking portion 212 is connected to the second locking portion 520, so that the first housing 51 and the second housing 52 are positioned relative to each other.

[0210] In summary, this embodiment enables the locking mechanism 1 to work when the first locking portion 212 is exactly corresponding 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.

[0211] Please refer again Figure 40-41 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 used to detect the sliding position of the second housing 52 relative to the first housing 51;

[0212] Wherein, when the second housing 52 has not slid to the locking position relative to the first housing 51, the stroke detection device 70 is used to detect the position of the second housing 52 relative to the first housing 51, and calculate the sliding time required for the second housing 52 to slide to the locking position relative to the first housing 51, and the stroke detection device 70 sends a position signal and the sliding time to the processor, and the processor receives the position signal and the sliding time and controls the memory alloy member 40 to be powered off in advance, and the memory alloy member 40 is extended to make the first locking portion 212 abut against the second housing 52;

[0213] 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 aligned with the second locking portion 520 .

[0214] In the second embodiment, when the electronic device 3 is in a normal sliding state, the second housing 52 can slide relative to the first housing 51, and the position of the second locking portion 520 relative to the first locking portion 212 will change during the sliding process. Since the memory alloy part 40 has a fast contraction response time when powered on, but requires a long cooling time when powered off, the response time is relatively slow. Therefore, when the second housing 52 has not slid to the locking position relative to the first housing 51, that is, the second locking portion 520 has not yet corresponded to the first locking, the second locking portion 520 still needs to slide one end distance to correspond to the first locking portion 212, at this time, 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, that is, 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, and the processor receives the position signal and controls the memory alloy member 40 to cut off the power in advance, and the memory alloy member 40 gradually stretches, so that the first locking portion 212 on the locking member 21 gradually slides toward the direction close to the second locking portion 520, until the first locking portion 212 abuts against the second housing 52, that is, abuts against the stopper 523. At this time, the second locking portion 520 has not yet moved 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 where it needs to be locked, that is, when 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.

[0215] In summary, the present embodiment provides a method for enabling the locking mechanism 1 to operate in advance before the second shell 52 slides to the position requiring locking, so that when the second shell 52 slides to the position requiring locking, the first locking portion 212 can automatically connect to the second locking portion 520, thereby omitting the time for the first locking portion 212 to move to the second locking portion 520, thereby improving the response time of the locking mechanism 1 and reducing the time required to lock the electronic device 3.

[0216] The processor of the electronic device 3 provided in the present application controls the driving member to drive the second shell 52 to slide relative to the first shell 51 to realize the automatic expansion or contraction of the shell, and the flexible screen 60 is automatically expanded or curled with the second shell 52, which is convenient to use. After expansion, the display surface of the flexible screen 60 can be increased, which is convenient for users to use. After curling, the volume of the electronic device 3 can be reduced and convenient for users to carry. In addition, after the second shell 52 is expanded relative to the first shell 51, it is automatically locked by the locking mechanism 1 to prevent the second shell 52 from moving relative to the first shell 51. When the electronic device 3 falls, the second shell 52 can be prevented from moving relative to the first shell 51, which can effectively protect the electronic device 3 as a whole, prevent the loss of the flexible screen 60 and damage to the mechanism inside the shell. Secondly, the locking mechanism 1 realizes automatic unlocking or automatic locking by powering on or off the memory alloy part 40, which has simple logic and can realize multi-level locking or unlocking, and the memory alloy part 40 has a large energy density, driving strain and driving stress, and the driving voltage required by the memory alloy part 40 is low and easy to obtain. In addition, the locking mechanism 1 is light in weight and volume, and occupies little space inside the housing, which facilitates the layout of other components. In addition, the present application changes the extension direction of the memory alloy member 40 by winding the winding end 403 of the memory alloy member 40 onto the winding portion 510 of the first housing 51, thereby increasing the effective length of the memory alloy member 40, increasing the sliding distance of the locking member 21, and improving the service life of the memory alloy member 40.

[0217] The above is a detailed introduction to the contents provided in the implementation mode of the present application. This article explains and illustrates the principles and implementation modes of the present application. The above explanation is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation mode and application scope. In summary, the contents of this specification should not be understood as limiting the present application.

Claims

1. A locking mechanism, characterized in that: Applied to a housing assembly, the housing assembly includes a first housing and a second housing, the second housing can slide relative to the first housing, and the locking mechanism includes: A fixing assembly, the fixing assembly being used to be fixed to the first shell; a locking assembly, the locking assembly being slidably disposed on the fixing assembly, the locking assembly being used to lock the second shell or to be separated from the second shell; and A memory alloy part, wherein the memory alloy part can be contracted and extended by power supply to change its length, the memory alloy part comprises a first end and a second end disposed opposite to each other, and at least one winding end disposed between the first end and the second end, the first end is connected to the locking assembly, the second end is used to be fixed to the first shell, and the winding end is used to be wound around the winding portion of the first shell to change the extension direction of the memory alloy part; A connecting assembly, the connecting assembly comprising a first connecting member and a second connecting member detachably connected to one end of the first connecting member, the other end of the first connecting member opposite to the first end being fixedly connected to the first end, and one end of the second connecting member away from the first connecting member being disposed on the locking assembly; The memory alloy part can shrink in length when powered on, thereby driving the locking assembly to slide in a direction close to the winding portion, thereby separating the locking assembly from the second housing; the memory alloy part can also extend in length when powered off, thereby driving the locking assembly to slide in a direction away from the winding portion, thereby causing the locking assembly to lock the second housing; When the locking assembly is fixed relative to the fixing assembly and the memory alloy component is in a contracted state, the memory alloy component can drive the first connecting component to separate from the second connecting component and drive the first connecting component to move in a direction away from the second connecting component.

2. The locking mechanism according to claim 1, characterized in that: The memory alloy component further includes a first portion and a second portion extending in the opposite direction from the first portion, and the connecting portion between the first portion and the second portion is the winding end of the memory alloy component.

3. The locking mechanism according to claim 2, characterized in that: In an extending direction of the first portion, a length of the first portion is equal to a length of the second portion.

4. The locking mechanism according to claim 2, characterized in that: The memory alloy component includes a plurality of winding ends, and the memory alloy component also includes at least one third part, and opposite ends of each third part are respectively connected to one winding end.

5. The locking mechanism according to claim 1, wherein: In a direction perpendicular to the extension of the memory alloy component, the width of the memory alloy component is less than or equal to the overall width of the fixing component when the fixing component and the locking component are matched.

6. The locking mechanism according to claim 1, wherein: The fixing assembly includes a clamping member and a second fixing member, the second fixing member is used to fix the second end of the memory alloy member to the first shell, the second fixing member has a receiving hole, the clamping member is clamped on the outer peripheral side of the second fixing member and exposed through the receiving hole, the memory alloy member passes through the second fixing member through the receiving hole and the second end is connected to the clamping member.

7. The locking mechanism according to claim 1, wherein: The memory alloy component also includes a first portion connected between the first end and the winding end, the first end having a connecting surface connected to the connecting component, and a height of the connecting surface is greater than a height of the first portion in a direction perpendicular to an extension direction of the memory alloy component.

8. The locking mechanism according to claim 7, characterized in that: The first end and the connecting component are connected in a limited manner by a limit block and a limit hole cooperating with each other; wherein the limit block is arranged at one of the first end and the connecting component, and the limit hole is arranged at the first end and the other of the connecting component.

9. The locking mechanism as described in claim 1, wherein the fixing assembly includes a first fixing member and a third fixing member spaced apart from the first fixing member, the locking assembly is slidably connected to the first fixing member and the third fixing member, and the first connecting member and the second connecting member are arranged on the third fixing member.

10. The locking mechanism according to claim 9, characterized in that: The connecting assembly further includes a first mounting member and a first elastic member, wherein the first mounting member is connected to the first connecting member and the first end, and opposite ends of the first elastic member respectively abut against the first mounting member and the third fixing member, so that the first connecting member is slidably connected to the third fixing member; When the memory alloy part contracts, it can drive the first connecting part and the first mounting part to move in a direction away from the second connecting part, and make the first elastic part in a compressed state; when the memory alloy part extends, it cooperates with the first elastic part in a compressed state, so that the first connecting part and the first mounting part both move in a direction close to the second connecting part and the first connecting part is connected to the second connecting part.

11. The locking mechanism according to claim 10, wherein: The first mounting member includes a first connecting portion, a second connecting portion, and a third connecting portion, the first connecting portion having a first receiving groove, the first connecting member is installed in the first receiving groove, the second connecting portion is arranged on the groove wall of the first receiving groove of the first connecting portion, the first end is connected to the second connecting portion, the third connecting portion is arranged on a side of the first connecting portion away from the first connecting member, the first elastic member is sleeved on the third connecting portion, and the opposite ends of the first elastic member respectively abut against a side of the first connecting portion away from the first connecting member and a side wall of the third fixing member.

12. The locking mechanism according to claim 10, wherein: The connecting component also includes an adhesive member, the surface of the first connecting member close to the second connecting member is a first surface, and the surface of the second connecting member close to the first connecting member is a second surface. The adhesive member is arranged on at least one of the first surface and the second surface so that the first connecting member can be detachably connected to the second connecting member.

13. The locking mechanism according to claim 10, wherein: The first connecting member is provided with a first buckle portion, and the second connecting member is provided with a second buckle portion, and the first buckle portion and the second buckle portion cooperate with each other so that the first connecting member can be detachably connected to the second connecting member.

14. The locking mechanism according to claim 1, wherein: The first connecting member and the second connecting member are both magnetic, and the first connecting member and the second connecting member attract each other; When the memory alloy part contracts, it can drive the first connecting part and the second connecting part to separate; when the memory alloy part extends, the first connecting part and the second connecting part attract each other, so that the first connecting part moves in a direction close to the second connecting part and the first connecting part is magnetically connected to the second connecting part.

15. The locking mechanism according to claim 9, wherein: The connecting component also includes a second mounting member, and the third fixing member has a receiving space. At least a portion of the first connecting member, at least a portion of the second connecting member, and at least a portion of the second mounting member are arranged in the receiving space. One side of the second mounting member has a second receiving groove, and the second connecting member is installed in the second receiving groove. The second connecting member is slidably connected to the third fixing member, and the locking component passes through the side wall of the receiving space and is connected to the other side of the second mounting member.

16. The locking mechanism according to any one of claims 1 to 6, characterized in that: The fixing component has a sliding space, and the locking component passes through the sliding space and is connected to the first end; Among them, the locking mechanism has a sliding state when the locking component slides relative to the fixed component. When the locking mechanism is in the sliding state, the contraction of the memory alloy part can drive the locking component to slide relative to the fixed component, thereby causing at least a portion of the locking component to contract within the sliding space.

17. The locking mechanism according to claim 16, wherein: The locking assembly further includes a locking member and a second elastic member connected to the locking member, the locking member includes a locking tongue and a fourth connecting portion connected to the locking tongue, 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 locking tongue and the side wall of the sliding space; Among them, when the locking mechanism is in the sliding state and at least part of the lock tongue is contracted in the sliding space, the second elastic member is in a compressed state; when the memory alloy member is stretched, it can cooperate with the second elastic member in the compressed state to make at least part of the lock tongue extend out of the sliding space.

18. The locking mechanism according to claim 17, wherein: A stop portion is provided on the inner side wall of the sliding space, and the stop portion can abut against the locking tongue.

19. The locking mechanism according to claim 18, wherein: The locking mechanism includes two fixing components and two locking components that are axially symmetrically arranged. The stop portion is provided on the inner side wall of the sliding space of each fixing component. When one locking component slides a first preset distance relative to one fixing component, it abuts against one stop portion, and when another locking component slides a second preset distance relative to another fixing component, it abuts against another stop portion; wherein the first preset distance is equal to the second preset distance.

20. A housing assembly, characterized in that: The invention comprises a first shell, a second shell, and a locking mechanism according to any one of claims 1 to 19, wherein the first shell is slidably connected to the second shell, a fixing component of the locking mechanism is fixed to the first shell, a winding end of the memory alloy member in the locking mechanism is wound around a winding portion of the first shell, and the second end is fixed to the first shell; the locking component of the locking mechanism is provided with a first locking portion, and the second shell is provided with at least one second locking portion; In which, the shell assembly has a sliding state when the locking assembly slides relative to the fixing assembly. When the shell assembly is in the sliding state, the shell assembly has a locked state when the first locking part is connected to the second locking part, and an unlocked state when the first locking part is separated from the second locking part.

21. The housing assembly according to claim 20, wherein: At least a portion of the outer circumference of the winding portion has a limiting groove, and at least a portion of the winding end is arranged in the limiting groove.

22. The housing assembly of claim 20, wherein: The first shell is provided with a bearing portion, one side of the bearing portion is provided with the winding portion, and an outer peripheral edge of the winding portion away from one end of the bearing portion is provided with a limiting portion.

23. An electronic device, characterized in that: The invention comprises a processor, a power supply module, and a housing assembly according to any one of claims 20 to 22, wherein the processor is electrically connected to the power supply module, the power supply module is electrically connected to the memory alloy part in the housing assembly, and the processor is used to control the power supply module to power on or off the memory alloy part so as to make the memory alloy part contract or extend; When the memory alloy piece is powered on, the memory alloy piece contracts to separate the first locking portion from the second locking portion; when the memory alloy piece is powered off, the memory alloy piece extends to connect the first locking portion to the second locking portion.

24. The electronic device according to claim 23, characterized in that The electronic device further comprises a stroke detection device electrically connected to the processor, wherein the stroke detection device is used to detect a sliding position of the second housing relative to the first housing; Among them, 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 power off of the memory alloy part, and the memory alloy part stretches to make the first locking part connect to the second locking part.

25. The electronic device according to claim 23, characterized in that: The electronic device further comprises a stroke detection device electrically connected to the processor, wherein the stroke detection device is used to detect a sliding position of the second housing relative to the first housing; Wherein, when the second housing has not slid to the locking position relative to the first housing, the stroke detection device is used to detect the position of the second housing relative to the first housing, and calculate the sliding time required for the second housing to slide to the locking position relative to the first housing, and the stroke detection device sends a position signal and the sliding time to the processor, and the processor receives the position signal and the sliding time and controls the memory alloy component to be powered off in advance, and the memory alloy component is extended to make the first locking portion abut against the second housing; At the same time, the second housing continues to slide relative to the first housing until the first locking portion is connected to the second locking portion when the first locking portion is exactly corresponding to the second locking portion.

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