A keyboard capable of automatic cleaning

Abstract

The application relates to an automatically-cleanable keyboard, which comprises a keyboard shell, a key assembly including a key cap, a cleaning piece rotating in the interval between the keyboard shell and the key cap, and an electromagnetic driving device including an energized assembly connected with the cleaning piece and a magnetic field generating assembly driving the energized assembly to rotate. The cleaning piece is attached to the upper end surface of the keyboard shell and rotates around the key assembly under the driving of the electromagnetic driving device, and has the advantage of cleaning the interval between the keyboard shell and the key cap.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of keyboards, in particular to an automatically cleanable keyboard. BACKGROUND

[0002] The keyboard is one of the office necessities. The existing keyboard is usually composed of a keycap, a PCB board, a keyboard shell and the like. The keycap and the keyboard shell are easily jammed with foreign matters due to long-term exposure and use. Since the keycaps are closely arranged, the foreign matters between the keycaps and the keyboard shell are difficult to clean. For example, the computer self-cleaning keyboard disclosed in CN211787011U sets a walking groove on the keyboard shell and drives a cleaning roller and a cleaning wheel to slide along the key surface of the keyboard by using a walking slide plate matched with the walking groove. The keyboard can only be cleaned on the outer end surface, and the foreign matters between the keycaps and the keyboard shell cannot be cleaned. SUMMARY

[0003] The present application aims to overcome the defects in the prior art and provide an automatically cleanable keyboard.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] An automatically cleanable keyboard comprises:

[0006] a keyboard shell;

[0007] a key assembly comprising a keycap;

[0008] a cleaning member rotating in the space between the keyboard shell and the keycap;

[0009] an electromagnetic driving device comprising an energized assembly connected with the cleaning member and a magnetic field generating assembly driving the energized assembly to rotate;

[0010] The cleaning member is attached to the upper end surface of the keyboard shell and rotates around the key assembly in the circumferential direction under the driving of the electromagnetic driving device.

[0011] Preferably, the key assembly comprises a slide column fixed to the lower end of the keycap, and the slide column is vertically slidingly installed on the keyboard shell.

[0012] The cleaning member is rotatingly installed on the slide column and moves axially downward along the slide column under the pressing of the keycap to drive the energized assembly to be de-energized. The cleaning member moves axially upward along the slide column under the driving of the electromagnetic driving device to control the energized assembly to be energized.

[0013] Preferably, the cleaning member comprises a rotating disc and a cleaning brush, and the rotating disc is rotatingly installed on the slide column.

[0014] The power supply assembly is mounted on the rotating disc and connected to the cleaning brush at one end.

[0015] Preferably, the power supply assembly comprises an electrically conductive sheet and a metal column.

[0016] The electrically conductive sheet is fixed on the rotating disc and connected to the metal column which is suspended and connected to the cleaning brush at one end.

[0017] Preferably, the electrically conductive sheet and the metal column are connected by an elastic return torsion spring.

[0018] The cleaning element is axially moved downward and locked by the locking structure.

[0019] The cleaning element is axially moved upward and reset by the elastic return torsion spring.

[0020] Preferably, the locking structure comprises a clamping hook and a clamping ring.

[0021] The clamping hook is fixed on one side of the cleaning element, and the clamping ring is arranged around the upper end surface of the keyboard shell.

[0022] Preferably, the electromagnetic drive device further comprises a first electric brush and a second electric brush.

[0023] The electrically conductive brush rod of the first electric brush is fixed on the sliding column, and one end thereof is electrically connected to the power supply and the other end thereof is in close contact with the electrically conductive sheet.

[0024] The electrically conductive slip ring of the second electric brush is fixed on the keyboard shell and electrically connected to the power supply.

[0025] Preferably, the lower end of the rotating disc is fixed with an annular magnet.

[0026] The magnetic field generating assembly comprises a mounting ring and an electrically conductive coil.

[0027] The mounting ring is coaxially arranged with the rotating disc, and the electrically conductive coil is arranged around the mounting ring.

[0028] The electrically conductive coil generates a magnetic field when energized and pushes the annular magnet upward.

[0029] Preferably, the upper end of the keyboard shell is provided with a sink for accommodating the key assembly and the cleaning element.

[0030] The keyboard shell is further provided with a foreign matter discharging device for collecting foreign matter in the sink.

[0031] Preferably, the foreign matter discharging device comprises a mounting cavity, an air guide channel, a foreign matter discharge port and a foreign matter collecting box.

[0032] The installation cavity is communicated with the sink through the air guide channel, and the foreign matter discharge port is arranged on the side of the sink away from the air guide channel.

[0033] The foreign matter collecting box is detachably installed on the keyboard shell.

[0034] The foreign matter collecting box covers the foreign matter discharge port, and the collecting cavity of the foreign matter collecting box is communicated with the foreign matter discharge port.

[0035] The installation cavity is arranged at the lower end of the keyboard shell and is provided with a blowing piece.

[0036] Compared with the prior art, the present application has the following beneficial effects:

[0037] In the above technical solution, the cleaning piece is arranged in the space between the keyboard shell and the keycap, so that the foreign matter in the space can be cleaned, and the foreign matter is prevented from remaining to affect the user's use experience and the flexibility of the keycap; the magnetic field generating assembly of the electromagnetic driving device provides a magnetic field for the energized assembly, so that the energized assembly can rotate and drive the cleaning piece to rotate to clean the keyboard shell; compared with the mechanical structure transmission, the electromagnetic driving device has a simpler structure and occupies less space, and is more suitable for being arranged in the space between the keyboard shell and the keycap without affecting the appearance and use of the keyboard. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0039] Figure 1 It is a structural schematic diagram of the keyboard.

[0040] Figure 2 It is a position schematic diagram (cross-sectional view) of the key assembly, the cleaning piece and the electromagnetic driving device.

[0041] Figure 3 It is an explosion schematic diagram of the key assembly and the cleaning piece.

[0042] Figure 4 It is a schematic diagram of the cleaning piece in the lower limit position (the keycap is in the pressed state).

[0043] Figure 5 It is a schematic diagram of the cleaning piece in the lower limit position (the keycap is in the pop-up state).

[0044] Figure 6Fig. 1 is a schematic view of a keyboard according to the present application. Figure 5 Fig. 2 is an enlarged view of the position A in Fig. 1.

[0045] Figure 7 Fig. 3 is a schematic view of a side section of the keyboard.

[0046] Figure 8 Fig. 4 is an exploded schematic view of the keyboard.

[0047] Legend of reference signs:

[0048] 1, keyboard housing; 11, sink groove; 12, upper housing; 13, lower housing; 14, PCB board; 15, conductive film; 16, rubber key; 17, sliding groove; 2, key assembly; 21, key cap; 22, sliding column; 3, cleaning piece; 31, rotating disc; 32, cleaning brush; 4, electromagnetic driving device; 41, power supply assembly; 411, conductive sheet; 412, metal column; 413, elastic reset torsion spring; 42, magnetic field generating assembly; 421, mounting ring; 422, conductive coil; 43, conductive brush rod; 44, conductive slip ring; 5, locking structure; 51, clamping hook; 52, clamping ring; 6, annular magnet; 7, foreign matter discharging device; 71, mounting cavity; 72, air guide channel; 73, foreign matter discharge port; 74, foreign matter collecting box; 741, collecting cavity; 75, air supply piece. DETAILED DESCRIPTION

[0049] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0050] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] As shown in Figure 1 , Figure 2 , Figure 3 The embodiment of the present application provides a keyboard which can be automatically cleaned, comprising: a keyboard shell 1, a key assembly 2, a cleaning piece 3 and an electromagnetic driving device 4; wherein the key assembly 2 comprises a key cap 21, the cleaning piece 3 is rotationally installed in the space (i.e. the sink 11) between the keyboard shell 1 and the key cap 21, and the cleaning piece 3 is attached to the upper end surface of the keyboard shell 1, and rotates around the key assembly 2 under the driving of the electromagnetic driving device 4; in order to control the cleaning piece 3 to clean the space between the keyboard shell 1 and the key cap 21 by using the electromagnetic driving device 4, the electromagnetic driving device 4 comprises an energized assembly 41 connected to the cleaning piece 3, a magnetic field generating assembly 42 driving the energized assembly 41 to rotate, and the magnetic field generating assembly 42 can be a structure capable of generating a magnetic field such as a magnet or a metal column surrounded by a power coil, i.e. when the electromagnetic driving device 4 is running, the energized assembly 41 is first energized, then the magnetic field generating assembly 42 generates a magnetic field, and then the energized assembly 41 is in the magnetic field, and the energized assembly 41 will rotate under the action of the Ampere force, further driving the cleaning piece 3 to clean the upper end surface of the keyboard shell 1, avoiding the retention of foreign matter in the space (the sink 11).

[0053] In the above technical solution, the cleaning piece 3 is arranged in the space between the keyboard shell 1 and the key cap 21, thereby achieving cleaning of foreign matter in the space, avoiding the retention of foreign matter affecting the user's use experience and the flexibility of the keys; the magnetic field generating assembly 42 of the electromagnetic driving device 4 provides a magnetic field for the energized assembly 41, so that the energized assembly 41 rotates, thereby driving the cleaning piece 3 to rotate synchronously, cleaning the keyboard shell 1. Compared with the mechanical structure transmission for cleaning, the electromagnetic driving device 4 in the present solution has a simpler structure, occupies less space, and is more suitable for installation in the space between the keyboard shell 1 and the key cap 21, and does not affect the appearance and use of the keyboard.

[0054] The cooperation mode of the cleaning piece 3 and the key assembly 2 in the present device has various modes, and the cleaning piece 3 can rotate around the key assembly 2 under the driving of the electromagnetic driving device 4.

[0055] In one embodiment, the cleaning piece 3 is arranged around the key assembly 2, as shown inFigure 2 , Figure 3 As shown, the key assembly 2 includes a slide post 22 fixed to the lower end of the keycap 21, which is vertically slidably mounted on the keyboard housing 1. The cleaning component 3 is rotatably mounted on the slide post 22, thereby enabling the cleaning component 3 to clean foreign objects around the slide post 22, preventing foreign objects from approaching the slide post 22 and affecting the flexibility of the key assembly 2. In order to ensure that the cleaning component 3 does not affect the normal use of the key assembly 2, and at the same time, when the cleaning component 3 is not working, it can also cut off the power to the power supply component 41 in time to avoid wasting resources. In this device, the cleaning component 3 moves downward along the axis of the slide post 22 when pressed by the keycap 21, driving the power supply component 41 to cut off the power. The cleaning component 3 moves upward along the axis of the slide post 22 under the drive of the electromagnetic drive device 4, controlling the power supply component 41 to be powered on.

[0056] Furthermore, the cleaning component 3 includes a turntable 31 and a sweeping brush 32. The turntable 31 is rotatably mounted on the slide column 22. The power supply component 41 is mounted on the turntable 31 and one end is connected to the sweeping brush 32. In addition, the cleaning component 3 can be set one-to-one with the button component 2, or one cleaning component 3 can be set every 1 or 2 button components 2. The electromagnetic drive device 4 is set one-to-one with the cleaning component 3.

[0057] In other embodiments, the cleaning component 3 may also be rotatably mounted on the keyboard housing 1 and arranged around the key assembly 2. For example, the cleaning component 3 may be rotatably mounted on the keyboard housing 1 using a rotating ring, with the rotating ring and the key assembly 2 arranged coaxially.

[0058] like Figure 2 , Figure 3 As shown, the energizing component 41 in this device can be one, two, or more. The energizing component 41 includes a conductive sheet 411 and a metal column 412. The conductive sheet 411 is fixed on the turntable 31 and connected to the suspended metal column 412. One end of the metal column 412 is connected to the cleaning brush 32. The metal column 412 and the cleaning brush 32 can be fixed by welding, threaded connection, snap-fit ​​connection, etc. The cleaning brush 32 can also be adjusted and installed on the metal column 412 so that it is fixedly connected during brushing and the cleaning position of the cleaning brush 32 can also be adjusted. Specifically, the electromagnetic drive device 4 also includes a first brush and a second brush. The conductive brush rod 43 of the first brush is fixed on the sliding column 22, one end of which is electrically connected to the power supply, and the other end is in contact with the conductive sheet 411. The conductive slip ring 44 of the second brush is fixed on the keyboard housing 1 and electrically connected to the power supply, so that the power supply of the energizing component 41 will not be affected during the rotation of the turntable 31.

[0059] During the energizing process of the energizing component 41, the metal column 412 is in the magnetic field generated by the magnetic field generating component 42, and a current flows through the metal column 412, thereby enabling the metal column 412 to operate under the action of the Ampere force, for example:Figure 2 As shown, the magnetic field lines generated by the magnetic field generating component 42 are along the X direction, and when the current in the metal column 412 flows along the I direction, the metal column 412 drives the cleaning brush to rotate along the Y direction.

[0060] like Figure 4 , Figure 5 , Figure 6 As shown, in order to ensure that the placement of the cleaning component 3 and the electromagnetic drive device 4 does not affect the use of the key assembly 2, and simultaneously, to enable the energizing component 41 to be switched on and off during the up-and-down movement of the cleaning component 3, the conductive sheet 411 and the metal pillar 412 are connected by an elastic return torsion spring 413 in this device; the cleaning component 3 moves axially downward and is locked by the locking structure 5; the cleaning component 3 moves axially upward and is driven to reset by the elastic return torsion spring 413. Specifically, the locking structure 5 includes a hook 51 and a retaining ring 52; the hook 51 is fixed to one side of the cleaning component 3, and the retaining ring 52 is arranged around the upper surface of the keyboard housing 1, so that during the downward movement of the cleaning component 3, the hook 51 can hook the retaining ring 52, resulting in a better locking effect.

[0061] When cleaning is finished, press the keycap 21, which will push the turntable 31, metal post 412, and cleaning brush 32 to move down simultaneously. After the cleaning component 3 moves down, the hook 51 hooks the retaining ring 52, so that the cleaning component 3 will not move up when there is no external force, thus not affecting the use of the key assembly 2. At this time, the metal post 412 and the conductive slip ring 44 do not contact each other, thus not causing power waste, and also allowing the cleaning component 3 to stop rotating in time without affecting the cooperation between the hook 51 and the retaining ring 52.

[0062] To enable the magnetic field generating component 42 to drive the cleaning component 3 upward and remove foreign objects while generating a magnetic field, a ring magnet 6 is fixedly installed at the lower end of the turntable 31. The magnetic field generating component 42 includes a mounting ring 421 and a conductive coil 422. The mounting ring 421 is coaxially arranged with the turntable 31, and the conductive coil 422 is arranged around the mounting ring 421. The conductive coil 422 generates a magnetic field when energized, which pushes the ring magnet 6 upward. The magnetic poles at the lower end of the ring magnet 6 are set according to the direction of the current flowing through the conductive coil 422. The mounting ring 421 in this device can be made of plastic to install the conductive coil 422, so that the conductive coil 422 is stably installed, which facilitates the fixation of the magnetic field direction, thereby driving the turntable 31 to rotate in an directional manner and pushing the ring magnet 6 upward. In order to further enhance the magnetic field strength generated by the magnetic field generating component 42, the mounting ring 421 in this device can also be made of metal ring, so that when the conductive coil 422 is energized to generate a magnetic field, the mounting ring 421 can also generate an induced magnetic field, which is more conducive to driving the turntable 31 to rotate in an directional manner and pushing the ring magnet 6 upward.

[0063] When cleaning is required, the conductive coil 422 is energized to generate a magnetic field, which pushes the ring magnet 6 to move the turntable 31 upward. The hook 51 disengages from the retaining ring 52, and the metal post 412 is reset under the action of the elastic reset torsion spring 413, so that when the turntable 31 moves to the upper limit position, the metal post 412 and the conductive slip ring 44 are in contact with each other.

[0064] In this device, the distance between the keyboard housing 1 and the keycaps 21 can be suspended or set as a recess 11 formed in the keyboard housing 1; for example... Figure 7 As shown, in order to prevent foreign objects from being directly discharged onto the desktop, it is preferable to have a sink 11 at the upper end of the keyboard housing 1 to accommodate the key assembly 2 and the cleaning component 3; the keyboard housing 1 is also provided with a foreign object discharge device 7 for collecting foreign objects in the sink 11.

[0065] Specifically, the foreign object discharge device 7 includes an installation cavity 71, an air guide channel 72, a foreign object discharge outlet 73, and a foreign object collection box 74; the installation cavity 71 is interconnected with the sink 11 through the air guide channel 72, and the foreign object discharge outlet 73 is located on the side of the sink 11 away from the air guide channel 72; the foreign object collection box 74 is detachably installed on the keyboard housing 1, and the foreign object collection box 74 can be installed on the keyboard housing 1 by means of snap-fit, sliding or threaded connection; the foreign object collection box 74 covers the foreign object discharge outlet 73, and its collection cavity 741 is interconnected with the foreign object discharge outlet 73; the installation cavity 71 is located at the lower end of the keyboard housing 1 and is equipped with an air supply component 75; the air supply component 75 can be a fan or an air duct.

[0066] like Figure 4 , Figure 5 , Figure 8 As shown, the keyboard housing 1 in this device includes a detachably connected upper housing 12 and a lower housing 13; a recess 11 is provided on the upper housing 12, and the keyboard PCB board 14 is installed in the lower housing 13. The PCB board 14 is provided with a conductive film 15 and rubber keys 16 of the conductive film 15. The rubber keys 16 are located at the lower end of the slide column 22. Specifically, the mounting ring 421 is designed as a hollow structure, that is, it is provided with a slide groove 17 inside. The slide column 22 is vertically slidably installed in the slide groove 17, and the lower end of the slide column 22 is in contact with the rubber keys 16 to realize the input of key commands. This design allows the electromagnetic drive device 4 to drive the cleaning component 3 without affecting the normal structure of the keyboard.

[0067] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A keyboard capable of automatic cleaning, characterized in that, include: Keyboard casing (1); Key assembly (2), including keycaps (21); The cleaning component (3) rotates within the gap between the keyboard housing (1) and the keycap (21); The electromagnetic drive device (4) includes an energized component (41) connected to the cleaning component (3) and a magnetic field generating component (42) that drives the energized component (41) to rotate. The cleaning component (3) is attached to the upper surface of the keyboard housing (1) and rotates around the key assembly (2) under the drive of the electromagnetic drive device (4); The key assembly (2) includes a slide post (22) fixed to the lower end of the keycap (21), and the slide post (22) is vertically slidably mounted on the keyboard housing (1); The cleaning component (3) is rotatably mounted on the slide column (22) and moves downward along the slide column (22) under the pressure of the keycap (21), driving the power-on component (41) to de-energize; the cleaning component (3) moves upward along the slide column (22) under the drive of the electromagnetic drive device (4), controlling the power-on component (41) to be energized.

2. The keyboard with automatic cleaning capability according to claim 1, characterized in that, The cleaning component (3) includes a turntable (31) and a cleaning brush (32), wherein the turntable (31) is rotatably mounted on the slide column (22); The power-conducting component (41) is mounted on the turntable (31) and one end is connected to the cleaning brush (32).

3. The keyboard with automatic cleaning capability according to claim 2, characterized in that, The energized component (41) includes a conductive sheet (411) and a metal pillar (412). The conductive sheet (411) is fixed on the turntable (31) and connected to the suspended metal column (412). One end of the metal column (412) is connected to the cleaning brush (32).

4. The keyboard with automatic cleaning capability according to claim 3, characterized in that, The conductive sheet (411) and the metal pillar (412) are connected by an elastic return torsion spring (413); The cleaning component (3) moves axially downward and is locked by the locking structure (5); The cleaning component (3) moves upward axially and is driven to reset by the elastic reset torsion spring (413).

5. A keyboard with automatic cleaning capability according to claim 4, characterized in that, The locking structure (5) includes a hook (51) and a retaining ring (52); The hook (51) is fixed to one side of the cleaning component (3), and the retaining ring (52) is arranged around the upper surface of the keyboard housing (1).

6. A keyboard with automatic cleaning capability according to claim 3, characterized in that, The electromagnetic drive device (4) also includes a first brush and a second brush; The conductive brush rod (43) of the first brush is fixed on the sliding column (22), one end of which is electrically connected to the power supply, and the other end is in contact with the conductive sheet (411); The conductive slip ring (44) of the second brush is fixed on the keyboard housing (1) and electrically connected to the power supply.

7. A keyboard with automatic cleaning capability according to claim 2, characterized in that, A ring magnet (6) is fixed at the lower end of the turntable (31). The magnetic field generating component (42) includes a mounting ring (421) and a conductive coil (422); The mounting ring (421) is coaxially arranged with the turntable (31), and the conductive coil (422) is arranged around the mounting ring (421); The conductive coil (422) generates a magnetic field when energized, which in turn pushes the annular magnet (6) upward.

8. The automatically cleaning keyboard according to claim 1, characterized in that, The upper end of the keyboard housing (1) is provided with a groove (11) for accommodating the key assembly (2) and the cleaning component (3). The keyboard housing (1) is also provided with a foreign object discharge device (7) for collecting foreign objects in the sink (11).

9. A keyboard capable of automatic cleaning according to claim 8, characterized in that, The foreign object discharge device (7) includes an installation cavity (71), an air guide channel (72), a foreign object discharge outlet (73), and a foreign object collection box (74). The mounting cavity (71) is connected to the settling tank (11) through the air guide channel (72), and the foreign object discharge port (73) is located on the side of the settling tank (11) away from the air guide channel (72); The foreign object collection box (74) is detachably installed on the keyboard housing (1); The foreign object collection box (74) covers the foreign object discharge port (73), and its collection cavity (741) is connected to the foreign object discharge port (73); The mounting cavity (71) is located at the lower end of the keyboard housing (1) and is equipped with an air supply component (75).

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