Shielding device for electronic equipment and external port thereof

Abstract

An embodiment of the present invention provides a shielding device for an electronic device and its external port, the device comprising: a base arranged beside the external port, the base being provided with a guide portion; a cover plate assembled on the base and capable of sliding back and forth along the guide portion between a shielding position shielding the external port and an open position exposing the external port; and a driving assembly for driving the cover plate to slide along the guide portion, the driving assembly comprising: a first driving member and a second driving member for applying force to the cover plate from opposite first and second directions respectively and keeping the cover plate in the shielding position in a normal state, wherein the first driving member is made of a shape memory alloy; and a first shape regulator for responding to a first external control instruction to cause the first driving member to change shape and apply force to the cover plate to move the cover plate from the shielding position to the open position. This embodiment can automatically open and close the external port of the electronic device.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of electronic equipment accessories, and in particular to an electronic equipment and a shielding device for an external port thereof. Background Art

[0002] Electronic devices such as mobile phones, cameras and dashcams are usually equipped with numerous external ports, such as charging ports, memory card slots, etc. In order to prevent external dust, water vapor, etc. from easily entering these external ports and causing poor contact or even damage to the external ports, some electronic devices are equipped with movable covers for the external ports, so as to effectively cover the external ports when not in use.

[0003] However, the inventors found in the specific implementation that in order to protect the overall appearance of the electronic device, the above-mentioned protective cover is usually designed to be embedded in the external port, and the outer surface is flush with the overall outer surface of the electronic device, which makes the opening operation relatively difficult. Moreover, these protective covers are usually made of rubber, which is easy to age and eventually break and fail during long-term use. Summary of the invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a shielding device for an external port of an electronic device, which can automatically open and close the external port of the electronic device.

[0005] A further technical problem to be solved by the embodiments of the present invention is to provide an electronic device that can automatically open and close an external port.

[0006] In order to solve the above technical problems, the embodiment of the present invention first provides the following technical solution: a shielding device for an external port of an electronic device, comprising: A base disposed beside the external port, wherein the base is provided with a guide portion; a cover plate assembled on the base and capable of sliding back and forth along the guide portion between a shielding position shielding the external port and an open position exposing the external port; and A driving assembly for driving the cover plate to slide along the guide portion, the driving assembly comprising: a first driving member and a second driving member for applying force to the cover plate from opposite first and second directions respectively and keeping the cover plate in the shielding position in a normal state, wherein the first driving member is made of a shape memory alloy; and A first shape regulator is used for responding to a first external control instruction to prompt the first driving member to change its shape so as to apply force to the cover plate to move the cover plate from the shielding position to the open position.

[0007] Furthermore, the second driving member is also made of shape memory alloy, and the driving assembly also includes a second shape regulator for responding to a second external control instruction to cause the second driving member to change shape and apply force to the cover to return the cover to a position covering the external port.

[0008] Furthermore, the second driving member is a spring or an elastic rubber strip.

[0009] Further, the first driving member is a wire made of a temperature-induced shape memory alloy, and the first shape regulator is a power supply for energizing the first driving member to cause the temperature state of the first driving member to change; or, The first driving member is a wire made of a stress-induced shape memory alloy, and the first shape regulator is a force-applying component used to apply force to the first driving member to cause the internal stress state of the first driving member to change.

[0010] Furthermore, the first driving member is a wire having a standard length at room temperature and being relatively relaxed without applying tension to the cover plate, but having a relatively shortened length at a temperature higher than the equilibrium temperature of the shape memory alloy, thereby applying tension to the cover plate; the second driving member is a wire having a standard length at room temperature and applying tension to the cover plate, but having a relatively elongated and relaxed length without applying tension to the cover plate at a temperature higher than the equilibrium temperature of the shape memory alloy; the first shape regulator and the second shape regulator are power supplies respectively used to energize the first driving member and the second driving member to cause the temperature states of the first driving member and the second driving member to change; the first driving member and the second driving member are respectively arranged at opposite ends of the cover plate.

[0011] Furthermore, the base includes two guide rails which are arranged in parallel with each other on the outside of the opposite sides of the external port and constitute the guide part, and limiting members which are respectively arranged at the opposite ends of the guide rails and are used to limit the sliding stroke of the cover plate. The opposite ends of the cover plate are respectively slidably assembled on the two guide rails, one end of the first driving member and the second driving member is fixed on the limiting member and the other end is fixed to the cover plate or abuts against the side edge of the cover plate.

[0012] Furthermore, a first magnetic component is provided on the base at a position corresponding to the open position, and a second magnetic component is provided on the cover at a position corresponding to the first magnetic component for adsorbing and cooperating with the first magnetic component to keep the cover at the open position.

[0013] Furthermore, the device comprises two symmetrically arranged cover plates and each cover plate is provided with a corresponding driving assembly, and the two cover plates are driven by their respective corresponding driving assemblies to move synchronously towards or away from each other.

[0014] Furthermore, the butt joint edges of the two cover plates are respectively provided with a third magnetic component and a fourth magnetic component. When the two cover plates move toward each other to the shielding position, the third magnetic component and the fourth magnetic component attract each other to keep the two cover plates in the shielding position.

[0015] On the other hand, in order to solve the above-mentioned technical problems, an embodiment of the present invention further provides the following technical solution: an electronic device, comprising a device body having an external port and a shielding device assembled on the device body for movably shielding the external port, wherein the shielding device is a shielding device for the external port of the electronic device as described in any of the above-mentioned items.

[0016] After adopting the above technical solution, the embodiment of the present invention has at least the following beneficial effects: the embodiment of the present invention adds a shielding device at the external port of the electronic device, and under normal conditions, the cover plate is in a shielding position, and the external port is not exposed. When the external port needs to be used to connect an external device, the user sends a start instruction (a part of the first external control instruction) to the first shape regulator, and the first shape regulator works to cause the first driving member to change its shape, so that the first driving member drives the cover plate to overcome the force of the second driving member on the cover plate and move to an open position, so that the external port is exposed and convenient for connecting an external device; and when the external port is finished, the user can give the first shape regulator a stop instruction (another part of the first external control instruction) to stop the first shape regulator, so that the first driving member is restored to the shape under normal conditions, and the force applied by the second driving member to the cover plate causes the cover plate to return to the initial shielding position, so that the external port is automatically closed and opened, and the controllability is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural principle diagram of an optional embodiment of a shielding device for an external port of an electronic device of the present invention, in which the cover plate is in a covering position.

[0018] Figure 2 This is a schematic structural principle diagram of an optional embodiment of a shielding device for an external port of an electronic device of the present invention, in which the cover is in an open position.

[0019] Figure 3 The figure is a schematic block diagram of the structural principle of an optional embodiment of the electronic device of the present invention. DETAILED DESCRIPTION

[0020] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following illustrative embodiments and descriptions are only used to explain the present invention and are not intended to limit the present invention. In addition, the embodiments and features in the embodiments of the present application may be combined with each other without conflict.

[0021] like Figure 1-Figure 2 As shown, an optional embodiment of the present invention provides a shielding device 1 for an external port of an electronic device, comprising: A base 10 is disposed beside the external port 3, and a guide portion 101 is provided on the base 10; a cover plate 12 assembled on the base 10 and slidable along the guide portion 101 between a shielding position A shielding the external port 3 and an open position B exposing the external port 3 ; and A driving assembly 14 for driving the cover plate 12 to slide along the guide portion 101, the driving assembly 14 comprising: A first driving member 141 and a second driving member 143 for applying force to the cover plate 12 from opposite first and second directions and maintaining the cover plate 12 at the shielding position A in a normal state, wherein the first driving member 141 is made of a shape memory alloy; and The first shape regulator 145 is used to respond to a first external control instruction to prompt the first driving member 141 to change its shape so as to apply force to the cover plate 12 to move the cover plate 12 from the shielding position A to the open position B.

[0022] In the embodiment of the present invention, a shielding device 1 is added to the external port 3 of the electronic device. Under normal conditions, the cover plate 12 is in the shielding position A, and the external port 3 is not exposed. When the external port 3 needs to be connected to an external device, the user sends a start instruction (a part of the first external control instruction) to the first shape regulator 145, and the first shape regulator 145 works to cause the first driving member 141 to change its shape, so that the first driving member 141 drives the cover plate 12 to overcome the force of the second driving member 143 on the cover plate 12 and move to the open position, so that the external port 3 is exposed and convenient for connecting to an external device; and when the external port is finished, the user can give the first shape regulator 145 a stop instruction (another part of the first external control instruction) to stop the first shape regulator 145, so that the first driving member 141 is restored to the shape under normal conditions. At this time, the force applied by the second driving member 143 to the cover plate 12 causes the cover plate 12 to return to the initial shielding position A, so that the external port 3 is automatically closed and opened, and the controllability is good.

[0023] In specific implementation, it can be understood that the normal state refers to a state at room temperature (for temperature-induced shape memory alloys) or a state without external pressure (for stress-induced shape memory alloys) that does not cause the shape memory alloy to change its shape.

[0024] In an optional embodiment of the present invention, the second driving member 143 is also made of a shape memory alloy, and the driving assembly 14 further includes a second shape regulator for responding to a second external control instruction to cause the second driving member 143 to change its shape and apply force to the cover plate 12 to return the cover plate 12 to a position covering the external port 3. In this embodiment, the second driving member 143 is also made of a shape memory alloy, and cooperates with the corresponding second shape regulator, so that the first driving member 141 and the second driving member 143 can cooperate to apply force to the cover plate 12 to cause the cover plate 12 to move back and forth between the shielding position and the open position. In a specific implementation, according to the different arrangement positions and force application methods of the first driving member 141 and the second driving member 143, the shape change trends of the first driving member 141 and the second driving member 143 can be the same or opposite. For example, the first driving member 141 and the second driving member 143 are arranged on the outside of the same end of the cover plate 12. When the first driving member 141 changes from a shape in a normal state to a shape in an unconventional state, its length becomes longer without applying any force to the cover plate 12, while the second driving member 143 changes from a shape in a normal state to a shape in an unconventional state. When the shape changes to the shape in the unconventional state, its length also becomes longer, and a thrust is applied to the cover 12 to move the cover 12 to the open position; and when the first driving member 141 changes from the shape in the unconventional state to the shape in the normal state, its length becomes shorter, and a pulling force is applied to the cover 12. At this time, when the second driving member 143 changes from the shape in the unconventional state to the shape in the normal state, its length also becomes shorter, and no thrust is applied to the cover 12. At this time, the cover 12 returns to the shielding position under the pulling force of the first driving member 141. If the first driving member 141 and the second driving member 143 are arranged on the outside of different ends of the cover plate 12, when the first driving member 141 changes from a shape in a normal state to a shape in an unconventional state, its length becomes shorter and a pulling force is applied to the cover plate 12, and when the second driving member 143 changes from a shape in a normal state to a shape in an unconventional state, its length becomes longer and no pulling force is applied to the cover plate 12, and the cover plate 12 moves to the open position under the pulling force of the first driving member 141; and when the first driving member 141 changes from a shape in an unconventional state to a shape in a normal state, its length becomes longer and no pulling force is applied to the cover plate 12. At this time, when the second driving member 143 changes from a shape in an unconventional state to a shape in a normal state, its length becomes shorter and a pulling force is applied to the cover plate 12 to cause the cover plate 12 to return to the shielding position A.

[0025] In an optional embodiment of the present invention, Figure 1 and Figure 2As shown, the second driving member 143 is a spring or an elastic rubber strip. In this embodiment, the second driving member 143 can also be a spring or an elastic rubber strip. When the external port 3 needs to be opened, the first shape regulator 145 energizes the first driving member 141 for a short time, so that the cover 12 moves from the shielding position A to the open position B; and when the external port 3 is used, the first shape regulator 145 stops energizing the first driving member 141, and the spring or elastic rubber strip automatically releases elastic potential energy to drive the cover 12 back to the shielding position A to close the external port 3 without power supply; the whole process only needs to energize the first driving member 141 for a short time when the external port 3 is opened, and the power consumption of the electronic device is very small, which is particularly suitable for various types of mobile small electronic devices (for example: mobile phones, cameras, driving recorders, etc.).

[0026] In a specific implementation, according to different installation positions, springs or elastic rubber strips of different shapes can be selected as the second driving member 143, so as to apply elastic pulling force or elastic pushing force to the cover plate 12 through stretching or compression.

[0027] In an optional embodiment of the present invention, the first driving member 141 is a wire made of a temperature-induced shape memory alloy, and the first shape regulator 145 is a power supply for energizing the first driving member 141 to cause the temperature state of the first driving member 141 to change; or, The first driving member 141 is a wire made of stress-induced shape memory alloy, and the first shape regulator 145 is a force-applying component for applying force to the first driving member 141 to change the internal stress state of the first driving member 141 .

[0028] In this embodiment, shape memory alloys can be divided into temperature-induced shape memory alloys and stress-induced shape memory alloys. For temperature-induced shape memory alloys, the first shape regulator 145 uses a power supply to energize it, and it automatically changes its temperature state after being energized, thereby deforming; for stress-induced shape memory alloys, the first shape regulator 145 applies force to it to change its internal stress state and thus achieve deformation.

[0029] In an optional embodiment of the present invention, the first driving member 141 is a wire having a standard length at room temperature and being relatively relaxed without applying tension to the cover plate 12, but having a relatively shortened length at a temperature higher than the equilibrium temperature of the shape memory alloy, thereby applying tension to the cover plate 12; the second driving member 143 is a wire having a standard length at room temperature and applying tension to the cover plate 12, but having a relatively elongated and relaxed length without applying tension to the cover plate 12 at a temperature higher than the equilibrium temperature of the shape memory alloy; the first shape regulator 145 and the second shape regulator are power supplies respectively used to energize the first driving member 141 and the second driving member 143 to cause the temperature states of the first driving member 141 and the second driving member 143 to change; the first driving member 141 and the second driving member 143 are respectively arranged at opposite ends of the cover plate 12. In this embodiment, when the first driving member 141 and the second driving member 143 are both made of shape memory alloy, through reasonable material selection, one of them is made of a wire having a standard length at room temperature and being relatively relaxed without applying tension to the cover plate 12, but the length will be relatively shortened when the temperature is higher than the equilibrium temperature of the shape memory alloy, and the other is made of a wire having a standard length at room temperature and applying tension to the cover plate 12, but the length will be relatively elongated and relaxed without applying tension to the cover plate 12 when the temperature is higher than the equilibrium temperature of the shape memory alloy, so that after the power supply is powered on, the two have driving forces in opposite directions. The above is only an example of the first driving member 141 and the second driving member 143 applying tension to the cover plate 12 respectively. It can be understood that in other embodiments, the first driving member 141 and the second driving member 143 can also apply thrust to the cover plate 12.

[0030] Specifically, Figure 1-Figure 2 As shown, each end of the cover plate 12 is provided with the first driving member 141 and the second driving member 143 .

[0031] In an optional embodiment of the present invention, Figure 1 and Figure 2As shown, the base 10 includes two guide rails arranged parallel to each other on the outside of the opposite sides of the external connection port 3 and constituting the guide part 101, and stoppers 103 respectively arranged at the opposite ends of the guide rails for limiting the sliding stroke of the cover plate 12. The opposite ends of the cover plate 12 are respectively slidably assembled on the two guide rails, and one end of the first driving member 141 and the second driving member 143 is fixed on the stopper 103 and the other end is fixed on the cover plate 12 or abuts against the side edge of the cover plate 12. In this embodiment, the two guide rails of the base 10 as the guide part 101 can simply and conveniently guide the directional sliding of the cover plate 12 to ensure the smooth movement of the cover plate 12; and the stopper 103 at the end of the guide rail can block and limit the cover plate 12 to prevent the cover plate 12 from being offset.

[0032] Specifically, the limiting members 103 at the same end of the two guide rails can also be connected together to form a crossbeam so that the base 10 as a whole is in the shape of a rectangular frame, which can improve the structural integrity of the base 10, enhance the relative position accuracy between the components, and facilitate assembly and use.

[0033] In an optional embodiment of the present invention, Figure 1 and Figure 2 As shown, the base 10 is further provided with a first magnetic member 105 at a position corresponding to the open position B, and the cover plate 12 is provided with a second magnetic member 121 at a position corresponding to the first magnetic member 105 for adsorbing and cooperating with the first magnetic member 105 to keep the cover plate 12 at the open position B. In this embodiment, the base 10 and the cover plate 12 are further provided with a first magnetic member 105 and a second magnetic member 121 that are mutually adsorbed, thereby ensuring that the cover plate 12 is kept at the open position B, and achieving stable positioning.

[0034] It can be understood that the first magnetic component 105 can be set on the guide rail or on the limit member 103; in addition, at least one of the first magnetic component 105 and the second magnetic component 121 should be a permanent magnet or an electromagnet, and the other can be an iron sheet, a permanent magnet or other materials that can be magnetically attracted by a permanent magnet or an electromagnet.

[0035] In an optional embodiment of the present invention, Figure 1 and Figure 2 As shown, the device includes two symmetrically arranged cover plates 12 and each cover plate 12 is provided with a corresponding driving assembly 14, and the two cover plates 12 are synchronously moved toward or away from each other under the drive of the corresponding driving assembly 14. In this embodiment, two cover plates 12 are used to butt against each other to close the external port 3, each cover plate 12 occupies a smaller area, and the moving stroke is also shorter, which is more convenient for structural layout.

[0036] In an optional embodiment of the present invention, Figure 1 and Figure 2 As shown, the butting edges of the two cover plates 12 are provided with a third magnetic member 123 and a fourth magnetic member 125, respectively. When the two cover plates 12 move toward each other to the shielding position A, the third magnetic member 123 and the fourth magnetic member 125 are attracted to each other to keep the two cover plates 12 at the shielding position A. In this embodiment, by providing the third magnetic member 123 and the fourth magnetic member 125 that are attracted to each other and cooperate with each other on the two cover plates 12, the cover plates 12 can be kept at the shielding position A when covering the external port 3, so as to avoid the cover plates 12 being easily displaced by external forces.

[0037] Likewise, at least one of the third magnetic member 123 and the fourth magnetic member 125 should be a permanent magnet or an electromagnet, and the other can be made of an iron sheet, a permanent magnet or other materials that can be magnetically attracted by a permanent magnet or an electromagnet.

[0038] On the other hand, Figure 3 As shown, an optional embodiment of the present invention further provides an electronic device, comprising a device body 5 having an external port 3 and a shielding device 1 assembled on the device body 5 for movably shielding the external port 3, wherein the shielding device 1 is a shielding device for an external port of an electronic device as described in any of the above embodiments. In this embodiment, the electronic device adopts the above shielding device 1, which can realize flexible opening and closing of the external port 3 and has low cost.

[0039] In a specific implementation, the device body 5 is also provided with a controller 50 for issuing the first external control instruction. Specifically, the controller 50 can be a physical button, control software of an electronic device, or an automatic sensor, etc.

[0040] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, which all belong to the protection scope of the present invention.

Claims

1. A shielding device for an external port of an electronic device, characterized in that: The device comprises: A base disposed beside the external port, wherein the base is provided with a guide portion; a cover plate assembled on the base and capable of sliding back and forth along the guide portion between a shielding position shielding the external port and an open position exposing the external port; and A driving assembly for driving the cover plate to slide along the guide portion, the driving assembly comprising: a first driving member and a second driving member for applying force to the cover plate from opposite first and second directions respectively and keeping the cover plate in the shielding position in a normal state, wherein the first driving member is made of a shape memory alloy; and A first shape regulator is used for responding to a first external control instruction to prompt the first driving member to change its shape so as to apply force to the cover plate to move the cover plate from the shielding position to the open position.

2. The shielding device for an external port of an electronic device as claimed in claim 1, characterized in that: The second driving member is also made of shape memory alloy, and the driving assembly also includes a second shape regulator for responding to a second external control instruction to cause the second driving member to change shape and apply force to the cover plate to return the cover plate to a position covering the external port.

3. The shielding device for an external port of an electronic device as claimed in claim 1, characterized in that: The second driving member is a spring or an elastic rubber strip.

4. The shielding device for an external port of an electronic device as claimed in claim 1, 2 or 3, characterized in that: The first driving member is a wire made of a temperature-induced shape memory alloy, and the first shape regulator is a power supply for energizing the first driving member to cause the temperature state of the first driving member to change; or The first driving member is a wire made of a stress-induced shape memory alloy, and the first shape regulator is a force-applying component used to apply force to the first driving member to cause the internal stress state of the first driving member to change.

5. The shielding device for an external port of an electronic device as claimed in claim 2, characterized in that: The first driving member is a wire having a standard length at room temperature and being relatively relaxed without applying tension to the cover plate, but being relatively shortened at a temperature higher than the equilibrium temperature of the shape memory alloy, thereby applying tension to the cover plate; the second driving member is a wire having a standard length at room temperature and applying tension to the cover plate, but being relatively elongated and relaxed without applying tension to the cover plate at a temperature higher than the equilibrium temperature of the shape memory alloy; the first shape regulator and the second shape regulator are power supplies respectively used to energize the first driving member and the second driving member to cause the temperature states of the first driving member and the second driving member to change; the first driving member and the second driving member are respectively arranged at opposite ends of the cover plate.

6. The shielding device for an external port of an electronic device as claimed in claim 1, characterized in that: The base includes two guide rails which are arranged parallel to each other on the outside of the opposite sides of the external port and constitute the guide part, and limiting members which are respectively arranged at the opposite ends of the guide rails and are used to limit the sliding stroke of the cover plate. The opposite ends of the cover plate are respectively slidably assembled on the two guide rails, and one end of the first driving member and the second driving member are fixed on the limiting member and the other end are fixed to the cover plate or abut against the side edge of the cover plate.

7. The shielding device for an external port of an electronic device as claimed in claim 6, characterized in that: A first magnetic member is further provided on the base at a position corresponding to the open position, and a second magnetic member is provided on the cover at a position corresponding to the first magnetic member for adsorbing and cooperating with the first magnetic member to keep the cover at the open position.

8. The shielding device for an external port of an electronic device as claimed in claim 1, 2 or 3, characterized in that: The device comprises two symmetrically arranged cover plates and each cover plate is provided with a corresponding driving assembly. The two cover plates are driven by the corresponding driving assemblies to move synchronously towards or away from each other.

9. The shielding device for an external port of an electronic device as claimed in claim 8, characterized in that: The butt joint edges of the two cover plates are respectively provided with a third magnetic attraction component and a fourth magnetic attraction component. When the two cover plates move toward each other to the shielding position, the third magnetic attraction component and the fourth magnetic attraction component attract each other to keep the two cover plates in the shielding position.

10. An electronic device, comprising a device body having an external port and a shielding device assembled on the device body for movably shielding the external port, characterized in that: The shielding device is a shielding device for an external port of an electronic device as described in any one of claims 1 to 9.

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