CN108563337A - A kind of keyboard and terminal - Google Patents

Abstract

The invention discloses a keyboard and a terminal. The keyboard includes a keyboard body with a key slot opening upward and an input unit installed in the key slot; the input unit includes: a capacitive sensor, which is arranged in the key slot; The electrodes are arranged at intervals up and down; the elastic member is located between the two electrodes of the capacitive sensor and is used to support the upper electrode of the capacitive sensor; the adjustment mechanism is arranged in the key groove to adjust the deformation height of the elastic member; the flexible circuit board and two touch sensors, one of which is located on the upper electrode of the capacitive sensor, and the other touch sensor is located on the outer end face of the key groove, the flexible circuit board is electrically connected with the two touch sensors, so that the touch panel is integrated into the On the keyboard, the multi-function of the keyboard is realized, and the volume of the notebook can also be reduced when it is applied to the notebook.

Description

A keyboard and terminal

technical field

This article relates to the field of terminal technology, especially a keyboard and a terminal.

Background technique

At present, keyboards are mainly divided into mechanical type, film type and non-contact electrostatic capacitance type.

The mechanical keyboard is similar to a metal contact switch. The working principle is to make the contacts conduct or disconnect. It has the characteristics of simple process, high noise and easy maintenance.

The interior of the membrane keyboard is divided into three layers, the upper layer is the positive circuit, the lower layer is the negative circuit, the middle is a non-conductive plastic sheet, and then the pressing module (usually including the keycap, the movable module under the keycap, and the rubber cap) is placed on the top. When the finger is pressed down from the keycap, the top (positive circuit) and the bottom (negative circuit) will be in contact with electricity or the distance will be changed, that is, the conduction will be completed. It is characterized by no mechanical wear, low price, low noise and low cost, and has occupied most of the market share.

The non-contact electrostatic capacitive keyboard is a keyboard based on a capacitive switch. The principle is to change the distance between the electrodes by pressing the button to produce a change in capacitance, so as to temporarily form the condition for the oscillating pulse to pass through. Its characteristics are that the wear rate is extremely small or even negligible, and there is no hidden danger of poor contact, and the noise is low, the feel is easy to control, and high-quality keyboards can be produced, but the process is more complicated than mechanical keyboards.

Existing notebooks are provided with a touchpad on one side of the keyboard, which is independent from the keyboard, which will increase the volume of the notebook.

Contents of the invention

In order to solve at least one of the above technical problems, this paper provides a keyboard, the touch panel is integrated on the keyboard, which realizes the multi-function of the keyboard, and can also reduce the size of the notebook when it is applied to the notebook.

Also provided herein is a terminal.

The keyboard provided by the embodiment of the present invention includes a keyboard body with a key slot opening upward and an input unit installed in the key slot; the input unit includes: a capacitive sensor with two separate electrodes arranged on the In the button groove, the two electrodes of the capacitive sensor are arranged at intervals up and down; the adjustment device is arranged in the button groove for adjusting the height position of the electrode located above; a flexible circuit board; and two touch sensors wherein one touch sensor is located on the upper electrode of the capacitive sensor, the other touch sensor is located on the outer end surface of the key groove, and the flexible circuit board is electrically connected to the two touch sensors; wherein, the The adjustment device adjusts the height position of the upper electrode so that when the two touch sensors are level, the two touch sensors are powered on; the adjustment device adjusts the height position of the upper electrode so that the two touch sensors When the touch sensor is misaligned up and down, the two electrodes of the capacitive sensor are electrified.

Optionally, the keyboard further includes: a protective layer disposed on the two touch sensors.

Optionally, in the horizontal direction: the opposite sides of the two touch sensors are aligned up and down.

Optionally, the flexible circuit board is arranged on the outer end surface of the key slot and covers the notch of the key slot, and the two electrodes of the capacitive sensor are located below the flexible circuit board, and the two The touch sensors are all above the flexible circuit board.

Optionally, the keyboard further includes: a detection sensor, set corresponding to the adjustment device, for detecting the state of the adjustment device, so as to alternately control the electrification of the capacitive sensor and the touch sensor.

Optionally, the adjusting device includes: an elastic member, located between the two electrodes of the capacitive sensor, for supporting the upper electrode of the capacitive sensor; and an adjusting mechanism, arranged in the key groove, It is used to adjust the deformation height of the elastic member; wherein, the adjustment mechanism adjusts the height position of the electrode located above by adjusting the deformation height of the elastic member, so that the two touch sensors are horizontally aligned or Misaligned up and down.

Optionally, the adjustment mechanism includes: two adjustment cams arranged horizontally at intervals, the elastic member is located between the two adjustment cams, and abuts against the opposite sides of the two adjustment cams through its two ends and two rotating shafts arranged horizontally at intervals, the two adjustment cams are rotatably installed in the key groove through the two rotating shafts.

Optionally, the adjusting mechanism further includes: a driving rod, which is located on the side of the two rotating shafts and correspondingly connected to the two adjusting cams through the two rotating shafts, for driving the adjusting cams to oscillate synchronously, so as to Adjust the deformation height of the elastic member.

Optionally, the adjusting cam is an elliptical disc, and the elastic member is a shrapnel.

Optionally, the capacitance sensor is an electrostatic capacitance sensor.

The terminal provided by the embodiments of the present invention includes the keyboard described in any one of the foregoing embodiments.

Compared with the prior art, in the keyboard provided by the present invention, the adjusting device adjusts the height position of the electrodes on the top, so that when the two touch sensors are level, the two touch sensors are powered on. The sensor can recognize the touch gesture operation and realize the function of the touch panel. At this time, the margin of the flexible circuit board is folded and collected around the upper electrode of the capacitive sensor; the adjustment device adjusts the height position of the upper electrode so that the two When the touch sensor is misaligned up and down, the two electrodes of the capacitive sensor are energized. At this time, it is in the button state, the flexible circuit board is unfolded, and the button input function can be realized by pressing the upper electrode of the capacitive sensor.

Further, in the horizontal direction: the opposite sides of the two touch sensors are aligned up and down, so that the upper surface of the keyboard in the state of the touchpad is flat, without gaps and grooves, ensuring a better operating feel.

Further, the flexible circuit board is arranged on the outer end surface of the key groove and covers the notch of the key groove to prevent water or dust from entering the key groove from the notch of the key groove during use.

The button mode uses the principle of static capacitance. This switch is non-contact and non-contact, with minimal or even negligible wear rate, and there is no hidden danger of poor contact. It has the advantages of low noise and easy control of the hand feel. Moreover, except that the adjustment mechanism cannot be designed as a flexible or folding structure, other structures of the keyboard can be designed with reference to flexible structures and materials, so the keyboard can be designed as a folding keyboard or a flexible keyboard.

Additional features and advantages herein will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice. The objectives and other advantages herein will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

The accompanying drawings are used to provide a further understanding of the technical solutions herein, and constitute a part of the description, and are used together with the embodiments of the application to explain the technical solutions herein, and do not constitute limitations to the technical solutions herein.

Fig. 1 is a partial structural schematic diagram of a keyboard in a key press state according to an embodiment of the present invention;

Fig. 2 is a partial structural schematic diagram of the state where the keyboard shown in Fig. 1 is a touch panel;

Fig. 3 is a structural schematic diagram of the adjustment mechanism in Fig. 1 and Fig. 2 corresponding to the button state;

FIG. 4 is a structural schematic diagram of the adjustment mechanism in FIG. 1 and FIG. 2 corresponding to the state of the touch panel.

Wherein, the corresponding relationship between reference numerals and component names in Fig. 1 to Fig. 4 is:

1 key slot, 2 capacitive sensor, 3 elastic member, 4 adjustment mechanism, 41 adjustment cam, 42 rotating shaft, 43 driving rod, 44 rotating shaft, 5 flexible circuit board, 6 touch sensor, 7 protective layer.

Detailed ways

In order to make the purpose, technical solutions and advantages of this document clearer, the embodiments of this document will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

In the following description, a lot of specific details are set forth in order to fully understand this article, but this article can also be implemented in other ways than described here, therefore, the protection scope of this article is not limited by the specific embodiments disclosed below .

The keyboard and terminal of some embodiments herein are described below with reference to the accompanying drawings.

The keyboard provided by the embodiment of the present invention, as shown in Figure 1 and Figure 2, includes a keyboard body with a key slot 1 with the opening facing upwards and an input unit installed in the key slot 1; the input unit includes: The capacitive sensor 2 of the electrode (the two parts indicated by the label 2 in Fig. 1 and Fig. 2) is arranged in the button groove 1, and the two electrodes of the capacitive sensor 2 are arranged at intervals up and down; Between the electrodes, it is used to support the upper electrode of the capacitive sensor 2; the adjustment mechanism 4 is arranged in the key groove 1, and is used to adjust the deformation height of the elastic member 3; the flexible circuit board 5; and two touch sensors 6, which A touch sensor 6 is located on the electrode above the capacitive sensor 2, another touch sensor 6 is located on the outer end face of the key groove 1, and the flexible circuit board 5 is electrically connected to the two touch sensors 6 (for signal transmission); wherein, The adjustment mechanism 4 adjusts the deformation height of the elastic member 3 so that when the two touch sensors 6 are horizontally aligned, the two touch sensors 6 are energized; the adjustment mechanism 4 adjusts the deformation height of the elastic member 3 so that the two touch sensors 6 are dislocated up and down , the two electrodes of capacitive sensor 2 are energized.

In the keyboard provided by the present invention, the adjustment mechanism 4 adjusts the deformed height of the elastic member 3, and the upper electrode of the capacitive sensor 2 moves from top to bottom, so that when the two touch sensors 6 are horizontally aligned, the two touch sensors 6 are energized ( The two electrodes of the capacitive sensor 2 are not powered), at this time, it is the touch panel state (as shown in Figure 2), the touch sensor 6 can recognize the touch gesture operation, and realize the touch input. At this time, the margin of the flexible circuit board 5 is folded Packed between the two touch sensor 6 capacitive screens; the adjustment mechanism 4 adjusts the height of the deformation of the elastic member 3, and the upper electrode of the capacitive sensor 2 moves from bottom to top, so that when the two touch sensor 6 capacitive screens are dislocated up and down, the capacitance The two electrodes of the sensor 2 are electrified (the two touch sensors 6 are not electrified), and at this time it is in the button state (as shown in Figure 1), the flexible circuit board 5 is unfolded, and the button can be realized by pressing the upper electrode of the capacitive sensor 2 Enter function.

Among them, the keyboard body is provided with a plurality of key grooves 1 and a plurality of input units, and the plurality of input units are installed in the plurality of key grooves 1 one by one, so as to realize the information input function of the keys. The keyboard body is also equipped with useful Structures such as control circuits for signal transmission. In the touchpad state, a plurality of touch sensors 6 together form a completed capacitive screen or resistive screen.

Further, as shown in FIG. 1 and FIG. 2 , the keyboard further includes: a protective layer 7 disposed on the upper surfaces of the two touch sensors 6 to protect the two touch sensors 6 .

Preferably, as shown in Figures 1 and 2, in the horizontal direction: the opposite sides of the two touch sensors 6 are flush up and down, so that the upper surface of the keyboard in the state of the touchpad is flat, and there are no gaps, ensuring a better operating feel. it is good.

Specifically, as shown in Figure 1 and Figure 2, the flexible circuit board 5 is arranged on the outer end surface of the key groove 1 and covers the notch of the key groove 1, so as to prevent water or dust from entering the notch of the key groove 1 during use. Enter the key groove 1; wherein, the two electrodes of the capacitive sensor 2 are located below the flexible circuit board 5 , and the two touch sensors 6 are located above the flexible circuit board 5 and are arranged on the flexible circuit board 5 .

Furthermore, the keyboard also includes: a detection sensor (not shown in the figure), which is arranged corresponding to the adjustment mechanism 4, and is used to detect the state of the adjustment mechanism 4 (that is, to determine the state of the elastic member 3), to alternately control the capacitive sensor 2 and The touch sensor 6 is powered on; that is, in the touchpad state, the detection sensor controls the touch sensor 6 to be powered on to realize the corresponding function; in the button state, the detection sensor controls the capacitive sensor 2 to be powered on to realize the corresponding function.

Specifically, as shown in Figures 3 and 4, the adjustment mechanism 4 includes: two adjustment cams 41 arranged horizontally at intervals, the elastic member 3 is located between the two adjustment cams 41, and abuts against the two adjustment cams through its two ends 41 on the opposite side, the adjustment cam 41 rotates to adjust the height of the deformation of the elastic member 3; and two rotation shafts 42 arranged at horizontal intervals, the two adjustment cams 41 are rotatably installed in the key groove 1 through the two rotation shafts 42 , to realize that the two adjusting cams 41 can both rotate.

Furthermore, as shown in Figures 3 and 4, the adjustment mechanism 4 also includes: a drive rod 43, which is located on the side of the two rotating shafts 42 and connected to the two adjusting cams 41 through the two rotating shafts 44, for driving and adjusting The cams 41 oscillate synchronously to change the distance between the two adjusting cams 41 , so as to adjust the deformation height of the elastic member 3 . The adjusting cam 41 is preferably an elliptical disc, the capacitive sensor 2 is an electrostatic capacitive sensor, and the elastic member 3 is preferably a shrapnel whose height can be changed through bending and deformation. When the bending deformation is large, the upper electrode of the capacitive sensor 2 protrudes upwards from the key groove 1, and is in a key state at this time; when the bending deformation is small, the upper electrode of the capacitive sensor 2 moves downward, so that the upper electrodes of the two touch sensors 6 The surfaces are coplanar (all the touch sensors 6 together form a large capacitive screen or resistive screen) to realize the function of the touch panel.

It can also be: when the bending deformation is small, the upper electrode of the capacitive sensor 2 sinks downward into the key groove 1, and it is in the key state at this time; when the bending deformation is large, the upper electrode of the capacitive sensor 2 moves upward, so that two touches The upper surface of the sensor 6 is coplanar to realize the function of the touch panel; it can also realize the purpose of the present application, and its purpose does not depart from the design idea of the present invention, so it will not be repeated here, and all should belong to the protection scope of the present application.

Moreover, according to the needs of the user, it can also be designed to adjust the resilience of the key and the height of the protrusion of the key through the adjustment mechanism.

The adjustment device and the elastic member can be implemented by using a spring and a telescopic rod structure. The spring is arranged on the telescopic rod, and the position of the electrode above is changed by changing the height of the telescopic rod, which can also achieve the purpose of this application. Its purpose is not Deviation from the design idea of the present invention will not be repeated here, and should also fall within the protection scope of the present application.

A terminal (not shown in the figure) provided by an embodiment of the present invention includes the keyboard described in any one of the foregoing embodiments.

The terminal provided by the present invention has all the advantages of the keyboard described in any one of the above embodiments, which will not be repeated here.

Wherein, the terminal may be a desktop computer or a notebook computer or the like.

To sum up, in the keyboard provided by the present invention, the adjustment mechanism adjusts the deformation height of the elastic member so that when the two touch sensors are level, the two touch sensors are powered on. Control the gesture operation to realize the touchpad function. At this time, the surplus of the flexible circuit board is folded and stored around the upper electrode of the capacitive sensor; the adjustment mechanism adjusts the deformation height of the elastic member so that when the two touch sensors are displaced up and down The two electrodes of the capacitive sensor are electrified. At this time, it is in the button state, the flexible circuit board is unfolded, and the button input function can be realized by pressing the upper electrode of the capacitive sensor.

Further, in the horizontal direction: the opposite sides of the two touch sensors are aligned up and down, so that the upper surface of the keyboard in the state of the touchpad is flat, without gaps and grooves, ensuring a better operating feel.

Further, the flexible circuit board is arranged on the outer end surface of the key groove and covers the notch of the key groove to prevent water or dust from entering the key groove from the notch of the key groove during use.

The button mode uses the principle of static capacitance. This switch is non-contact and non-contact, with minimal or even negligible wear rate, and there is no hidden danger of poor contact. It has the advantages of low noise and easy control of the hand feel. Moreover, except that the adjustment mechanism cannot be designed as a flexible or folding structure, other structures of the keyboard can be designed with reference to flexible structures and materials, so the keyboard can be designed as a folding keyboard or a flexible keyboard.

In the description herein, the terms "installation", "connection", "connection" and "fixation" should be interpreted in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection ; It can be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms herein according to specific situations.

In the description of this specification, descriptions of the terms "one embodiment", "some embodiments", "specific embodiments" and the like mean that specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included herein. In at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the implementations disclosed herein are as above, the content described is only the implementations adopted to facilitate the understanding of this article, and is not intended to limit this article. Anyone skilled in the field of this article can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed herein. The scope defined in the claims shall prevail.

Claims (10)

1. Include keyboard body with opening up key slot and the input list being installed in the key slot 1. a kind of keyboard Member；It is characterized in that, the input unit includes：

   Tool is set in the key slot, two electricity of the capacitance sensor there are two the capacitance sensor of seperated electrode Pole is between the upper and lower every setting；

   Regulating device is set in the key slot, for adjusting the height and position where the electrode being located above；

   Flexible PCB；With

   Two touch sensors, one touch sensor are located on the electrode in top of the capacitance sensor, are another A touch sensor is located on the outer end face of the key slot, and the flexible PCB is electrically connected with two touch sensors It connects；

   Wherein, height and position where the electrode that regulating device adjustment is located above, so that two touch sensors When horizontal concordant, two touch sensors obtain electric；

   Height and position where the electrode that regulating device adjustment is located above, so that two touch sensors are wrong up and down When position, two electrodes of the capacitance sensor obtain electric.
2. 2. keyboard according to claim 1, which is characterized in that further include：

   Protective layer is set on two touch sensors.
3. 3. keyboard according to claim 1, which is characterized in that in horizontal direction：Two touch sensors are opposite Side is leveled up and down.
4. 4. keyboard according to claim 1, which is characterized in that the flexible PCB is set to the outer end of the key slot On face and the notch of the key slot is covered, two electrodes of the capacitance sensor are under the flexible PCB Side, two touch sensors are in the top of the flexible PCB.
5. 5. keyboard according to claim 1, which is characterized in that further include：

   Detection sensor corresponds to the regulating device and is arranged, for detecting the state of the regulating device, alternately to control institute State capacitance sensor and the touch sensor obtain it is electric.
6. 6. keyboard according to any one of claim 1 to 5, which is characterized in that the regulating device includes：

   Elastic component is located between two electrodes of the capacitance sensor, and be used to support the capacitance sensor is in top Electrode；With

   Regulating mechanism is set in the key slot, the height for adjusting the elastic component deformation；

   Wherein, the regulating mechanism deforms by adjusting the elastic component height realizes electrode that adjustment is located above Height and position.
7. 7. keyboard according to claim 6, which is characterized in that the regulating mechanism includes：

   Be horizontally spaced about two adjusting cams, the elastic component be located between two adjusting cams and by its two End is against on two opposite sides of the adjusting cam；With

   Two rotation axis being horizontally spaced about, two adjusting cams are installed in rotation on by two rotation axis In the key slot.
8. 8. keyboard according to claim 7, which is characterized in that the regulating mechanism further includes：

   Drive rod, while being correspondingly connected in the two adjusting cams positioned at one side of two rotation axis and by two shafts On, for driving the adjusting cam synchronous hunting, to adjust the height of the elastic component deformation.
9. 9. keyboard according to claim 6, which is characterized in that the adjusting cam is oval plate, and the elastic component is bullet Piece, the capacitance sensor are direct capacitance sensor.
10. 10. a kind of terminal, which is characterized in that include keyboard as claimed in any one of claims 1-9 wherein.