Patent Description:
China patent publication number <CIT> discloses a slide rail locking mechanism, which uses an electromagnet to connect to one end of a pressing piece. The other end of the pressing piece is arranged above a press self-locking mechanism with an intermittent locking function, and a latch is arranged below the press self-locking mechanism. The electromagnet can drive the latch through the pressing piece to lock the slide rail.

Combination of the sliding rail locking mechanism disclosed in this case is too complicated and requires many components, such as the electromagnet (comprising an iron core and a spring), the pressing piece, the self-locking mechanism and the latch, to achieve the function of lock.

For different market requirements, sometimes it is not desirable to achieve the function of lock through the aforementioned design. Therefore, it is important to develop various products.

<CIT> discloses an electronic lock, applicable to a first object and a second object pivotally movable relative to each other, wherein the electronic lock comprises a control circuit module; and an electromagnetic mechanism electrically connected to the control circuit module, wherein the electromagnetic mechanism comprises a coil, a driving member configured to be driven by the coil electrified by the control circuit module to be located at one of a first position and a second position; wherein the electronic lock further comprises a magnet; wherein when the second object is located at a predetermined position relative to the first object and when the driving member is located at the first position, the second object is prevented from moving away from the predetermined position; wherein when the second object is located at the predetermined position relative to the first object and when the driving member is located at the second position, the second object is able to move away from the predetermined position; wherein when the coil is not electrified by the control circuit module, the driving member is configured to be held at one of the first position and the second position by the magnet; wherein the electronic lock further comprises a manual unlocking mechanism; wherein when the coil is not electrified by the control circuit module and the driving member is located at the first position, the manual unlocking mechanism is configured to drive the driving member to move from the first position to the second position, to allow an emergency opening; wherein when a force is applied to the manual unlocking mechanism along a predetermined direction, the manual unlocking mechanism is configured to drive the driving member to move from the first position to the second position.

This in mind, the present invention aims at providing an electronic lock, which is applicable to a first object and a second object movable relative to each other.

This is achieved by an electronic lock according to independent claim <NUM>. The dependent claims pertain to corresponding further developments and improvements.

As will be seen more clearly from the detailed description following below, the claimed electronic lock is applicable to a first object and a second object movable relative to each other. The electronic lock comprises a control circuit module and an electromagnetic mechanism. The electromagnetic mechanism is electrically connected to the control circuit module. The electromagnetic mechanism comprises a coil, a driving member and a magnet. The driving member is configured to be driven by the coil electrified by the control circuit module to be located at one of a first position and a second position. When the second object is located at a predetermined position relative to the first object and when the driving member is located at the first position, the second object is prevented from moving away from the predetermined position. When the second object is located at the predetermined position relative to the first object and when the driving member is located at the second position, the second object is able to move away from the predetermined position. When the coil is not electrified by the control circuit module, the driving member is configured to be held at one of the first position and the second position by the magnet.

The electronic lock further comprises a manual unlocking mechanism; wherein when the coil is not electrified by the control circuit module and the driving member is located at the first position, the manual unlocking mechanism is configured to drive the driving member to move from the first position to the second position.

The manual unlocking mechanism further comprises a first member and a second member; wherein when a force is applied to the first member along a predetermined direction, the first member is configured to drive the second member to move together, to further drive the driving member to move from the first position to the second position; wherein the predetermined direction is substantially parallel to a direction of relative movement between the first object and the second object.

As shown in <FIG> and <FIG>, an electronic lock <NUM> is applicable to a furniture assembly <NUM> according to an embodiment of the present invention. The furniture assembly <NUM> comprises a first object <NUM> and a second object <NUM> movable relative to each other.

Preferably, the furniture assembly <NUM> further comprises a third object <NUM> movably mounted between the first object <NUM> and the second object <NUM>. In the present embodiment, the first object <NUM> is a first rail (such as a fixed rail), the second object <NUM> is a second rail (such as a movable rail), and the third object <NUM> is a third rail (such as a middle rail), but the present invention is not limited thereto. The first object <NUM>, the second object <NUM> and the third object <NUM> are longitudinally movable relative to each other to jointly form a slide rail assembly <NUM>.

Preferably, the first object <NUM> is arranged (such as fixed) on a cabinet <NUM>, and the second object <NUM> is configured to carry a drawer <NUM>. The drawer <NUM> is configured to be located at an extension position E relative to the first object <NUM> (or the cabinet <NUM>) through the second object <NUM> as shown in <FIG> and <FIG>.

Preferably, the first object <NUM> comprises an extension part <NUM>, and the second object <NUM> comprises a carrying part <NUM>.

As shown in <FIG> and <FIG>, the second object <NUM> is configured to be located at a predetermined position R (such as a retracted position) relative to the first object <NUM>. When the second object <NUM> is located at the retracted position, the carrying part <NUM> of the second object <NUM> is located at a position substantially corresponding to the extension part <NUM> of the first object <NUM> (as shown in <FIG>).

Preferably, the electronic lock <NUM> is detachably mounted to the first object <NUM>. For example, the electronic lock <NUM> has a mounting feature <NUM>, and a side wall <NUM> of the extension part <NUM> of the first object <NUM> has a mounting structure <NUM> configured to be mutually engaged with the mounting feature <NUM>. In the present embodiment, one of the mounting feature <NUM> and the mounting structure <NUM> is a protrusion part, the other one of the mounting feature <NUM> and the mounting structure <NUM> is an insertion groove, but the present invention is not limited thereto.

Preferably, the electronic lock <NUM> has a housing <NUM> configured to cover most of related parts of the electronic lock <NUM> for protection.

Preferably, the furniture assembly <NUM> further comprises a fitting member <NUM> configured to be detachably mounted to the carrying part <NUM> of the second object <NUM>. For example, the fitting member <NUM> has a connecting feature <NUM>, and the carrying part <NUM> of the second object <NUM> has a connecting structure <NUM> configured to be mutually engaged with the connecting feature <NUM>. In the present embodiment, one of the connecting feature <NUM> and the connecting structure <NUM> is an engaging groove, and the other of the connecting feature <NUM> and the connecting structure <NUM> is a protrusion, but the present invention is not limited thereto.

Preferably, the fitting member <NUM> further comprises an auxiliary part <NUM> (as shown in <FIG>) configured to work with the electronic lock <NUM>. The auxiliary part <NUM> can be a hole or a groove, but the present invention is not limited thereto.

<FIG> and <FIG> are figures showing the electronic lock <NUM> without the housing <NUM>. Furthermore, the electronic lock <NUM> comprises a control circuit module <NUM> and an electromagnetic mechanism <NUM>. The electronic lock <NUM> further comprises a manual unlocking mechanism <NUM>. Preferably, the electronic lock <NUM> further comprises a base <NUM> and a sensor <NUM>.

The electromagnetic mechanism <NUM> is electrically connected to the control circuit module <NUM>, and the electromagnetic mechanism <NUM> comprises a driving member <NUM> and a magnet <NUM>. The electromagnetic mechanism <NUM> further comprises a coil <NUM>, and may comprise an elastic member <NUM>.

Preferably, the control circuit module <NUM>, the electromagnetic mechanism <NUM>, the manual unlocking mechanism <NUM> and the sensor <NUM> are all arranged on the base <NUM>. The base <NUM> has the mounting feature <NUM>. The control circuit module <NUM> is connected to a fixing part <NUM> on the base <NUM> through at least one connecting member <NUM>.

Preferably, the electromagnetic mechanism <NUM> is electrically connected to the control circuit module <NUM> through at least one transmission unit <NUM>. The at least one transmission unit <NUM> can comprise a first wire (cable) and a second wire (cable), but the present invention is not limited thereto.

Preferably, the electromagnetic mechanism <NUM> further comprises an accommodating member <NUM>. The coil <NUM> and the magnet <NUM> are arranged in a space S defined by the accommodating member <NUM>, and the driving member <NUM> is partially extended out of the space S (as shown in <FIG>).

Preferably, the magnet <NUM> is a permanent magnet.

Preferably, the driving member <NUM> comprises a driving part <NUM> and a latch part <NUM>. The driving part <NUM> is made of a metal material. In the present invention, the driving part <NUM> is an iron core, but the present invention is not limited thereto. The latch part <NUM> is connected (such as fixedly connected) to the driving part <NUM>, such that the latch part <NUM> and the driving part <NUM> can be seen as one piece, and the latch part <NUM> has an extension section 80a. In other embodiments, the latch part <NUM> can be integrated with the driving part <NUM>, but the present invention is not limited thereto.

Preferably, the elastic member <NUM> is sleeved on the driving part <NUM> of the driving member <NUM>, and the elastic member <NUM> is arranged between the accommodating member <NUM> and the latch part <NUM>.

Preferably, the electromagnetic mechanism <NUM> further comprises an auxiliary base <NUM>, and the auxiliary base <NUM> is connected to the base <NUM> through at least one connecting component <NUM>. The latch part <NUM> of the driving member <NUM> is configured to pass through an opening H of the auxiliary base <NUM>. The auxiliary base <NUM> is configured to assist the driving member <NUM> in preventing the second object <NUM> from being moved away from the predetermined position R when the driving member <NUM> is located at a first position P1 (as shown in <FIG>).

<FIG> is a diagram showing the electronic lock <NUM> without the housing <NUM>, the control circuit module <NUM> and the electromagnetic mechanism <NUM>.

The manual unlocking mechanism <NUM> comprises a first member <NUM> and a second member <NUM>. The first member <NUM> is movably mounted on the base <NUM>. For example, the first member <NUM> is pivotally connected to the base <NUM> through a shaft <NUM>, and an auxiliary elastic member <NUM> is configured to provide an elastic force to the first member <NUM> to hold the first member <NUM> in an initial state S1. On the other hand, the second member <NUM> is movably mounted on the base <NUM>. For example, the second member <NUM> is movable relative to the base <NUM> through a holding feature <NUM> on the base <NUM>, and the holding feature <NUM> is an extended passage, so that the second member <NUM> is linearly movable relative to the base <NUM>. A direction of linear movement of the second member <NUM> is substantially perpendicular to a direction of longitudinal relative movement between the second object <NUM> and the first object <NUM>.

Preferably, the first member <NUM> and the second member <NUM> are configured to work with each other through a first predetermined feature <NUM> and a second predetermined feature <NUM>. For example, one of the first predetermined feature <NUM> and the second predetermined feature <NUM> is a protrusion, the other one of the first predetermined feature <NUM> and the second predetermined feature <NUM> is an elongated hole (or an elongated groove), and the protrusion pass through a portion of the elongated hole, but the present invention is not limited thereto (as shown in <FIG>).

Preferably, a corresponding section 86a of the second member <NUM> is adjacent to the extension section 80a of the latch part <NUM> (as shown in <FIG>).

Preferably, the electronic lock <NUM> further comprises a slider <NUM> and an elastic feature <NUM> arranged on the base <NUM>. The elastic feature <NUM> is configured to provide an elastic force to the slider <NUM>, so as to hold the slider <NUM> in a first state W1. The slider <NUM> comprises a guiding part <NUM> (such as an inclined surface or an arc surface), and the sensor <NUM> is configured to work with the slider <NUM> (as shown in <FIG>). Preferably, the sensor <NUM> is electrically connected to the control circuit module <NUM>.

As shown in <FIG>, the electronic lock <NUM> is configured to work with a communication device <NUM>. The control circuit module <NUM> is electrically connected to the electromagnetic mechanism <NUM>. The communication device <NUM> is configured to communicate with the electronic lock <NUM> through wired or wireless communication. The communication device <NUM> can be a mobile phone, a tablet or a smart watch, but the present invention is not limited thereto.

As shown in <FIG>, the driving member <NUM> is configured to be driven by the control circuit module <NUM> to be located at the first position P1 (as shown in <FIG>) or a second position P2 (please refer to <FIG>). For example, the driving member <NUM> is configured to be driven by the coil <NUM> electrified by the control circuit module <NUM> to be located the first position P1 or the second position P2. As show in <FIG>, when the second object <NUM> (the fitting member <NUM> represents the second object <NUM> in <FIG>) is located at a predetermined position R (the fitting member <NUM> is located at a predetermined position R' relative to the electronic lock <NUM> as shown in <FIG>) relative to the first object <NUM> (the electronic lock <NUM> represents the first object <NUM> in <FIG>) and when the driving member <NUM> is located at the first position P1, the second object <NUM> is prevented from moving away from the predetermined position R.

Specifically, when the second object <NUM> is located at the predetermined position R and when the driving member <NUM> is located at the first position P1 (such as a locking position), the latch part <NUM> of the driving member <NUM> is extended into the auxiliary part <NUM> (such as a hole or a groove) of the fitting member <NUM>, and the latch part <NUM> blocks a first blocking feature 53a (or a second blocking feature 53b) of the auxiliary part <NUM> to prevent the second object <NUM> from moving away from the predetermined position R relative to the first object <NUM> along an opening direction D1 (or a retraction direction D2).

Preferably, the driving member <NUM> is configured to be driven to be located at the first position P1 when the control circuit module <NUM> provides a first power signal. For example, the driving member <NUM> is configured to be driven to be located at the first position P1 when the control circuit module <NUM> provides the first power signal to the coil <NUM>. Furthermore, the control circuit module <NUM> is configured to provide the first power signal (such as reverse voltage, but the present invention is not limited thereto) to the coil <NUM> through the at least one transmission unit <NUM> to drive the driving member <NUM> to be located at the first position P1.

Preferably, when the driving member <NUM> is not driven by the control circuit module <NUM>, the driving member <NUM> is configured to be held at the first position P1 by the elastic member <NUM>. For example, when the coil <NUM> is not electrified by the control circuit module <NUM> and when the driving member <NUM> is located at the first position P1, the driving member <NUM> is configured to be held at the first position P1 by the elastic force of the elastic member <NUM>, so as to save power.

Preferably, when the fitting member <NUM> (represents the second object <NUM> in <FIG>) is located at a predetermined position R' relative to the electronic lock <NUM> (represents the first object <NUM> in <FIG>), a predetermined wall <NUM> of the fitting member <NUM> is configured to press the slider <NUM> to hold the slider <NUM> in a second state W2, such that the elastic feature <NUM> accumulates an elastic force.

<FIG> is a flow chart of a first operation process of the electronic lock <NUM> according to an embodiment of the present invention. The flow chart of the first operation process of the electronic lock <NUM> comprises the following steps:
Step S110: The communication device <NUM> sets the drawer <NUM> to be locked.

In Step S110, the communication device <NUM> is installed with an application (APP), such that a user can send a first control signal, such as a locking signal, through the application of the communication device <NUM>.

Step S120: The sensor <NUM> detects whether the second object <NUM> is located at the predetermined position R relative to the first object <NUM>.

In Step S120, as shown in <FIG>, the electronic lock <NUM> is configured to detect whether the sensor <NUM> is in a normally open (NO) state, in order to determine whether the second object <NUM> is located at the predetermined position R relative to the first object <NUM>. For example, when the predetermined wall <NUM> of the fitting member <NUM> presses the slider <NUM> to hold the slider <NUM> in the second state W2, the sensor <NUM> is in the normally open state. Meanwhile, the second object <NUM> is located at the predetermined position R relative to the first object <NUM>. Therefore, the sensor <NUM> can be used for detecting whether the second object <NUM> is located at the predetermined position R relative to the first object <NUM>. In other embodiments of the present invention, when the slider <NUM> is held in the second state W2, the sensor <NUM> can be in a normally closed (NC) state, in order to determine whether the second object <NUM> is located at the predetermined position R relative to the first object <NUM>.

If the sensor <NUM> is in the normally open (NO) state, Step S130 is performed. Step S130: The driving member <NUM> of the electromagnetic mechanism <NUM> is driven to be located at the first position P1 according to the first power signal. In step S130, when the electronic lock <NUM> receives the first control signal of the communication device <NUM>, the control circuit module <NUM> provides the first power signal (such as reverse voltage, but the present invention is not limited thereto) to the coil <NUM> to drive the driving member <NUM> to be located the first position P1 (as shown in <FIG>), so as to prevent the drawer <NUM> from being opened. In step S130, when the second object <NUM> (the drawer <NUM>) is located at the predetermined position R relative to the first object <NUM> (the cabinet <NUM>) and when the driving member <NUM> is located at the first position P1 (as shown in <FIG>), the drawer <NUM> is prevented from being opened along the opening direction D1.

If the sensor <NUM> is not in the normally open (NO) state, Step S140 is performed. Step <NUM>: The communication device <NUM> generates a notice to warn that the drawer <NUM> is not completely closed. In Step S140, the communication device <NUM> can generate a sound and/or an electronic message through the application to inform the user that the drawer <NUM> is not completely located at the predetermined position R now.

As shown in <FIG> and <FIG>, the driving member <NUM> is driven to be located at the second position P2 when the coil <NUM> is electrified by the control circuit module <NUM>. When the second object <NUM> (the fitting member <NUM> represents the second object <NUM> in <FIG> and <FIG>) is located at the predetermined position R (the fitting member <NUM> is located at the predetermined position R' relative to the electronic lock <NUM> as shown in <FIG>) relative to the first object <NUM> (the electronic lock <NUM> represents the first object <NUM> in <FIG> and <FIG>) and when the driving member <NUM> is located at the second position P2, the second object <NUM> is able to move away from the predetermined position R.

Specifically, when the second object <NUM> is located at the predetermined position R relative to the first object <NUM> (the fitting member <NUM> is located at the predetermined position R' relative to the electronic lock <NUM> as shown in <FIG>) and when the driving member <NUM> is located at the second position P2 (such as an unlocking position), the latch part <NUM> of the driving member <NUM> is not extended into the auxiliary part <NUM> (such as a hole or a groove) of the fitting member <NUM>, so as to allow the second object <NUM> to move away from the predetermined position R relative to the first object <NUM> along the opening direction D1. For example, the second object <NUM> can be moved to the extension position E along the opening direction D1 (the fitting member <NUM> is located at the predetermined extension position E' relative to the electronic lock <NUM> as shown in <FIG>).

Preferably, the driving member <NUM> is configured to be driven to be located at the second position P2 when the control circuit module <NUM> provides a second power signal. For example, the driving member <NUM> is configured to be driven to be located at the second position P2 when the control circuit module <NUM> provides the second power signal to the coil <NUM>. Furthermore, the control circuit module <NUM> is configured to provide the second power signal (such as forward voltage, but the present invention is not limited thereto) to the coil <NUM> through the at least one transmission unit <NUM> to drive the driving member <NUM> to be located at the second position P2.

Preferably, when the driving member <NUM> is not driven by the control circuit module <NUM>, the magnet <NUM> is configured to hold the driving member <NUM> located at the second position P2. For example, when the coil <NUM> is not electrified by the control circuit module <NUM> and when the driving member <NUM> is located at the second position P2, the driving member <NUM> is attracted by the magnet <NUM> to be held at the second position P2, so as to save power.

Preferably, when the second object <NUM> is located at the extension position E relative to the first object <NUM> (the fitting member <NUM> represents the second object <NUM> and is located at the predetermined extension position E' relative to the electronic lock <NUM> in <FIG>), the predetermined wall <NUM> of the fitting member <NUM> no longer presses the slider <NUM>, such that the slider <NUM> returns to the first state W1 from the second state W2 in response to the elastic force released by the elastic feature <NUM>.

Moreover, one of the slider <NUM> and the fitting member <NUM> comprises the guiding part <NUM>. In the present embodiment, both the slider <NUM> and the fitting member <NUM> have the guiding parts (<FIG> only shows the guiding part <NUM> of the slider <NUM>). During a process of the second object <NUM> being moved from an extension position, such as the extension position E (the fitting member <NUM> is correspondingly located the predetermined extension position E' as shown in <FIG>), to the predetermined position R along the retraction direction D2, the fitting member <NUM> can easily push the slider <NUM> to move through the guiding part <NUM>, so that the predetermined wall <NUM> of the fitting member <NUM> is configured to press the slider <NUM> again (as shown in <FIG>).

<FIG> is a flowchart of a second operation process of the electronic lock <NUM> according to an embodiment of the present invention. The flowchart of the second operation process of the electronic lock <NUM> comprises the following steps:
Step S210: The communication device <NUM> sets the drawer <NUM> to be unlocked.

In Step S210, the user can send a second control signal, such as an unlocking signal, through the application of the communication device <NUM>.

Step S220: The driving member <NUM> of the electromagnetic mechanism <NUM> is driven to be located at the second position P2 according to the second power signal. In step S220, when the electronic lock <NUM> receives the second control signal of the communication device <NUM> and when the second object <NUM> (the drawer <NUM>) is located at the predetermined position R relative to the first object <NUM> (the cabinet <NUM>) (as shown in <FIG>), the driving member <NUM> is driven to be located at the second position P2 according to the second power signal (such as forward voltage, but the present invention is not limited thereto) provided by the control circuit module <NUM> to the coil <NUM>, such that the drawer <NUM> is able to be opened. In step S220, when the second object <NUM> (the drawer <NUM>) is located at the predetermined position R relative to the first object <NUM> (the cabinet <NUM>) and when the driving member <NUM> is located at the second position P2 (as shown in <FIG>), the drawer <NUM> is able to be opened along the opening direction D1 (as shown in <FIG>).

As shown in <FIG> and <FIG>, when the coil <NUM> is not electrified by the control circuit module <NUM> and when the driving member <NUM> is located at the first position P1, the manual unlocking mechanism <NUM> is configured to drive the driving member <NUM> to move from the first position P1 (such as a locking position as shown in <FIG>) to the second position P2 (such as an unlocking position as shown in <FIG>).

For example, the user can apply a force F to the first member <NUM> along a predetermined direction (such as the opening direction D1). When a force is applied to the first member <NUM> along the predetermined direction, the first member <NUM> is configured to drive the second member <NUM> to move together, to further drive the driving member <NUM> to move from the first position P1 (as shown in <FIG>) to the second position P2 (as shown in <FIG>). Preferably, the first member <NUM> has a mounting part <NUM> (such as a hole, but the present invention is not limited thereto) configured to be tied with a rope for allowing the user to apply the force F.

Moreover, the predetermined direction is substantially parallel to a direction of relative movement between the first object <NUM> and the second object <NUM>. For example, the predetermined direction is a longitudinal direction, and a moving direction of the second object <NUM> relative to the first object <NUM> is also a longitudinal direction.

Preferably, the first member <NUM> is configured to be rotated to drive the second member <NUM> to move linearly. For example, when the user applies the force F to the first member <NUM> along the predetermined direction, the first member <NUM> is moved from the initial state S1 (as shown in <FIG>) along a first rotating direction Y1 to a swing state S2 (as shown in <FIG>), such that the first member <NUM> can drive the second member <NUM> to move linearly relative to the base <NUM> along a first moving direction K1. In addition, the corresponding section 86a of the second member <NUM> is configured to contact with the extension section 80a of the latch part <NUM> of the driving member <NUM>, so as to drive the driving member <NUM> to move from the first position P1 (as shown in <FIG>) to the second position P2 (as shown in <FIG>), and the auxiliary elastic member <NUM> is configured to accumulate an elastic force at the meantime (as shown in <FIG>).

As shown in <FIG> and <FIG>, when the user stops applying the force F to the first member <NUM>, the first member <NUM> is moved along a second rotating direction Y2 from the swing state S2 (as shown in <FIG>) to the initial state S1 (as shown in <FIG>). During such process, the first member drives the second member <NUM> to move along a second moving direction K2 to the initial position. The second rotating direction Y2 is opposite to the first rotating direction Y1, and the second moving direction K2 is opposite to the first moving direction K1.

Therefore, the electronic lock <NUM> according to embodiments of the present invention has the following technical features:.

Claim 1:
An electronic lock (<NUM>), applicable to a first object (<NUM>) and a second object (<NUM>) movable relative to each other, the electronic lock (<NUM>) comprising:
a control circuit module (<NUM>); and
an electromagnetic mechanism (<NUM>) electrically connected to the control circuit module (<NUM>), the electromagnetic mechanism (<NUM>) comprising:
a coil (<NUM>);
a driving member (<NUM>) configured to be driven by the coil (<NUM>) electrified by the control circuit module (<NUM>) to be located at one of a first position and a second position; and
a magnet (<NUM>);
wherein when the second object (<NUM>) is located at a predetermined position relative to the first object (<NUM>) and when the driving member (<NUM>) is located at the first position, the second object (<NUM>) is prevented from moving away from the predetermined position;
wherein when the second object (<NUM>) is located at the predetermined position relative to the first object (<NUM>) and when the driving member (<NUM>) is located at the second position, the second object (<NUM>) is able to move away from the predetermined position;
wherein when the coil (<NUM>) is not electrified by the control circuit module (<NUM>), the driving member (<NUM>) is configured to be held at one of the first position and the second position by the magnet (<NUM>);
wherein the electronic lock further comprises a manual unlocking mechanism (<NUM>); wherein when the coil (<NUM>) is not electrified by the control circuit module (<NUM>) and the driving member (<NUM>) is located at the first position, the manual unlocking mechanism (<NUM>) is configured to drive the driving member (<NUM>) to move from the first position to the second position;
characterized in that
the manual unlocking mechanism (<NUM>) comprises a first member (<NUM>) and a second member (<NUM>); wherein when a force is applied to the first member (<NUM>) along a predetermined direction, the first member (<NUM>) is configured to drive the second member (<NUM>) to move together, to further drive the driving member (<NUM>) to move from the first position to the second position; wherein the predetermined direction is substantially parallel to a direction of relative movement between the first object (<NUM>) and the second object (<NUM>).