TWI385688B - Key - Google Patents

Description

button

The invention relates to a button.

Buttons are a basic control device that is widely used in various electronic products, such as controlling the opening of the screen on the TV panel, closing the screen, entering the selection menu, exiting the selection menu, selecting a menu and adjusting it. The function of the button, but most of the current buttons can only perform a certain function, so to achieve the above multiple functions, it is necessary to set a plurality of buttons on the electronic device, which makes the assembly of the plurality of buttons to the electronic device more labor-intensive In particular, with the increasing popularity of small electronic devices, multiple buttons have caused great troubles in the design of electronic devices.

In view of this, it is necessary to provide a multifunctional button.

A button includes a touch portion and a sampling portion. The touch portion can sense external pressure. The sampling portion includes a power source, a first sampler, a second sampler, a processor, a first conductive layer and a second conductive layer disposed in a gap. The first conductive layer includes opposite first ends and second ends, and the second conductive layer includes opposite third ends and fourth ends, the first ends and the third ends are located on the first conductive layer and the second conductive The same side of the layer, the second end and the fourth end are located on the other side of the first conductive layer and the second conductive layer. The first end is electrically connected to the first pole of the power source via a first sampler, and the fourth end is electrically connected to the first pole of the power source by a second sampler, and the second end and the third end are directly connected The second pole of the power supply is electrically connected. The processor and the The first sampler and the second sampler are electrically connected to analyze a signal change manner collected by the first sampler and the second sampler, and issue corresponding commands according to the signal change manner to enable an electronic device to perform a corresponding function. .

The button of the present invention has different signals collected by the first sampler and the second sampler according to different positions of the contact points of the first conductive layer and the second conductive layer, and the processor pairs the first sampler and The signal change mode collected by the second sampler is analyzed and judged, and the electronic device is executed according to the signal change mode, so that the electronic device can perform a plurality of different functions, and the structure is simple and practical.

The invention will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 to FIG. 3 , a button 100 is provided. The button 100 includes a touch portion 110 , a connecting portion 120 stacked under the touch portion 110 , and a sampling portion 140 . The touch portion 110 is made of elastic non-conductive rubber, can sensitively sense external pressure, and can function as a waterproof protection. The connecting portion 120 is configured to fix the button 100 to an electronic device (not shown) and to electrically connect the button 100 to the electronic device (not shown). A sealed accommodating cavity 130 is formed between the touch portion 110 and the connecting portion 120. The sampling portion 140 is fixed in the accommodating cavity 130. In this embodiment, the button 100 is a button on a television panel.

The sampling portion 140 includes a first conductive layer 141, a second conductive layer 142, an air insulating layer 143, a first sampler 144, a second sampler 145, a processor 146, and a power source 150.

The first conductive layer 141 and the second conductive layer 142 are disposed in parallel and are a uniform resistance material. The first conductive layer 141 and the second conductive layer 142 have the same resistance. The first conductive layer 141 includes an opposite first end 141x and a second end 141y, and the second conductive layer 142 includes an opposite third end 142x and a fourth end 142y. The first end 141x and the third end 142x are located on the same side of the first conductive layer 141 and the second conductive layer 142, and the second end 141y and the fourth end 142y are located on the first conductive layer 141 and the second conductive layer 142. The other side. The air insulating layer 143 is located between the first conductive layer 141 and the second conductive layer 142. In this embodiment, the second conductive layer 142 faces the third end 142x and the fourth end 142y of the surface of the first conductive layer 141 and is provided with a plurality of support columns 143a made of an insulating material to form the air. Insulation layer 143.

As shown in FIG. 4, the branch formed by the first conductive layer 141 in series with the first sampler 144 is connected in parallel with the branch formed by the second conductive layer 142 and the second sampler 145 in series. The power source 150 includes a first pole 150a and a second pole 150b. The first end 141x is electrically connected to the first pole 150a of the power source 150 by the first sampler 144. The fourth end 142y of the second conductive layer 142 is coupled to the first pole of the power source 150 by the second sampler 145. The second end 141y and the third end 142x are electrically connected directly to the second pole 150b of the power source 150. In the present embodiment, the first pole 150a is a positive electrode, and the second pole 150b is a negative electrode. It can be understood that in other embodiments, the first pole 150a is a negative pole and the second pole 150b is a positive pole.

The processor 146 is electrically connected to the first sampler 144 and the second sampler 145, and stores therein a function table corresponding to the signal change mode of the first sampler 144 and the second sampler 145, which is used for analyzing the first a sampler 144 And the signal change mode collected by the second sampler 145 and by querying the function table stored therein corresponding to the signal change mode, and issuing corresponding commands, so that the electronic device (not shown) performs the corresponding function. In this embodiment, the first sampler 144 and the second sampler 145 are both current detectors.

As shown in FIG. 5, when the touch portion 110 is touched by one finger, the first conductive layer 141 and the second conductive layer 142 are in contact at the first touch point 161, and the position of the first touch point 161 is used as a boundary. From the first pole 150a of the power source 150 to the second pole 150b, the first conductive layer 141 is divided into a first resistor portion 141a and a second resistor portion 141b; from the second pole 150b of the power source 150 to the first pole 150a, the second conductive layer 142 is divided into a third resistor portion 142a and a fourth resistor portion 142b. The resistance of the first resistor portion 141a is R11, the resistance of the second resistor portion 141b is R12, the resistance of the third resistor portion 142a is R13, and the resistance of the fourth resistor portion 142b is R14. The total resistance of a conductive layer 141 and the second conductive layer 142 are equal, and are all R, that is, R11+R12=R, and R13+R14=R. The voltage of the power source 150 is U. Therefore, the circuit diagram shown in FIG. 5 can be equivalent to the circuit diagram shown in FIG. 6, that is, the first resistance portion 141a is connected in parallel with the fourth resistance portion 142b, and the second resistance portion 141b is connected in parallel with the third resistance portion 142a, and then the above The two are connected in series, so that the first sampler 144 collects the current I11 flowing through the first resistor portion 141a, and the second sampler 145 collects the current I12 flowing through the fourth resistor portion 142b. . Since the distance between the first conductive layer 141 and the second conductive layer 142 is small and the first conductive layer 141 and the second conductive layer 142 are uniform resistive materials, when the touch portion 110 is touched by one finger, R11= R13 and R12=R14, so the first resistance portion 141a and the first The resistance obtained by the parallel connection of the four resistor portions 142b is equal to the resistance value obtained by connecting the second resistor portion 141b and the third resistor portion 142a in parallel, so that the voltage UO1 of the first touch point 161 does not change, and the voltage of the power source 150 is always maintained. Half of U, ie UO1=U/2. The current value I11=UO1/R11 in the first sampler 144, the current value I12=UO1/R14 in the second sampler 145, so the current I11 collected by the first sampler 144 changes only by the first The change trend of the resistance value R11 of the one resistor portion 141a is determined, and the variation trend of the current I12 collected by the second sampler 145 is determined only by the change trend of the resistance value R14 of the fourth resistor portion 142b, and when R11 is gradually increased. During the process, I11 gradually decreases; as R14 gradually increases, I12 gradually decreases, and vice versa. When the user slides on the touch portion 110 with one finger, the position of the first touch point 161 changes, and the first resistance portion 141a, the second resistance portion 141b, the third resistance portion 142a, and the fourth resistance portion are changed. The resistance of 142b changes, so that the current signals collected by the first sampler 144 and the second sampler 145 are changed.

As shown in FIG. 5, when the user slides on the touch portion 110 with one finger, the changes of the current signals of the first sampler 144 and the second sampler 145 can be divided into various types, for example:

(1) When a finger of the user slides the touch on the touch portion 110 toward the first sampler 144, the resistance value R11 of the first resistance portion 141a and the resistance value R13 of the third resistance portion 142a decrease simultaneously. Thereby, the current value I11 in the first sampler 144 is increased. At the same time, the resistance value R12 of the second resistance portion 141b and the resistance value R14 of the fourth resistance portion 142b are simultaneously increased, thereby reducing the current value I12 in the second sampler 145. In the present embodiment This operation enables fast and silent functions.

(2) When a finger of the user slides the touch on the touch portion 110 toward the second sampler 145, the resistance value R11 of the first resistance portion 141a and the resistance value R13 of the third resistance portion 142a increase simultaneously. Thereby, the current value I11 in the first sampler 144 is decreased. At the same time, the resistance value R12 of the second resistance portion 141b and the resistance value R14 of the fourth resistance portion 142b are simultaneously decreased, thereby increasing the current value I12 in the second sampler 145. In the present embodiment, this operation can implement the function of releasing the mute.

As shown in FIG. 7 , when the touch portion 110 is simultaneously touched by two fingers, the first conductive layer 141 and the second conductive layer 142 are in contact with each other at the positions of the second touch point 162 and the third touch point 163. The second touch point 162 and the third touch point 163 are boundary lines. The first conductive layer 141 is divided into a fifth resistance portion 141c, a sixth resistance portion 141d, and a first pole 150a from the first pole 150a of the power source 150. The seventh resistor portion 141e has three portions. The second conductive layer 142 is divided into an eighth resistor portion 142c, a ninth resistor portion 142d and a tenth resistor portion 142e from the second pole 150b of the power source 150 to the first pole 150a. The resistance of the fifth resistor portion 141c is R21, the resistance of the sixth resistor portion 141d is R22, the resistance of the seventh resistor portion 141e is R23, and the resistance of the eighth resistor portion 142c is R24, and the ninth resistor portion is The resistance of 142d is R25, and the resistance of the tenth resistor portion 142e is R26, then R21+R22+R23=R, R24+R25+R26=R. Therefore, the circuit diagram shown in FIG. 7 can be equivalent to the circuit diagram shown in FIG. When the touch portion 110 is simultaneously touched by two fingers, R21=R24, R22=R25, R23=R26, and R21+R22+R23=R, R24+R25+R26=R. The total resistance of the branch where the first sampler 144 is located is R10, and the total resistance of the branch where the second sampler 145 is located is R20. R10=R21+(R22+R23)R24/(R22+R23+R24)=(2R21R-R212)/R, R21, the current I21=U/R10 collected by the first sampler 144, the second sampler 145 The collected current I22=U/R20, so the trend of the current I21 collected by the first sampler 144 is determined only by the change trend of the resistance R21 of the fifth resistor portion 141c, and the second sampler 145 collects The change trend of the current I22 is determined only by the change trend of the resistance value R26 of the tenth resistance portion 142e, and when the resistance value R21 of the fifth resistance portion 141c is increased from 0 to R, I21 is gradually decreased; In the process in which the resistance value R26 of the resistance portion 142e is increased from 0 to R, I22 is gradually decreased, and vice versa.

When the user slides on the touch portion 110 with two fingers at the same time, the current signals of the first sampler 144 and the second sampler 145 can be divided into various types, for example:

(1) When the two fingers of the user slide the touch on the touch portion 110 from the midpoint position of the first conductive layer 141 toward the first sampler 144 and the second sampler 145, respectively, the fifth resistor The resistance values of the portion 141c and the eighth resistor portion 142c are simultaneously decreased from R/2 to 0, thereby increasing the current value I21 in the first sampler 144. The resistance values of the seventh resistor portion 141e and the tenth resistor portion 142e are simultaneously decreased from R/2 to 0, thereby increasing the current value I22 in the second sampler 145. In the present embodiment, this operation can realize the function of turning on the television screen.

(2) when the two fingers of the user slide on the touch portion 110 by the positions of the first sampler 144 and the second sampler 145 toward the midpoint of the first conductive layer 141, the fifth resistor portion The resistance values of the 141c and the eighth resistance portion 142c are gradually increased from 0 to R/2, thereby making the first sampling The current value I21 in the 144 is reduced. The resistance values of the seventh resistor portion 141e and the tenth resistor portion 142e are simultaneously increased, so that the current value I22 in the second sampler 145 is decreased. In the present embodiment, this operation can realize the function of turning off the television screen.

(3) when one of the user's fingers is slidably touched by the position of the first sampler 144 toward the second sampler 145, and the other finger touch of the user is not moved on the touch portion 110, the first The resistance values of the fifth resistor portion 141c and the eighth resistor portion 142c are gradually increased from 0 to R, thereby reducing the current value I21 in the first sampler 144. The resistance values of the seventh resistor portion 141d and the tenth resistor portion 142d do not change, so that the current value I22 in the second sampler 145 does not change. In the present embodiment, this operation can be implemented by entering the selection function table and moving to the right on the selection function table for selection.

(4) when one of the user's fingers is slidly touched toward the first sampler 144 by the position on the first conductive layer 141 near the second sampler 145, and the other finger of the user touches the touch When the portion 110 is not moving, the resistance values of the fifth resistor portion 141c and the eighth resistor portion 142c are gradually decreased from R to 0, thereby increasing the current value I21 in the first sampler 144. The resistance values of the seventh resistor portion 141e and the tenth resistor portion 142e are not changed, so that the current value I22 of the second sampler 145 does not change. In the present embodiment, this operation can be implemented by entering the selection function table and moving to the left on the selection function table for selection.

(5) when one of the user's fingers touches the touch portion 110 and the other finger of the user is slidably touched by the position of the second sampler 145 toward the position of the first sampler 144, The fifth resistor portion 141c and The resistance of the eighth resistor portion 142c is constant, so that the current value I21 in the first sampler 144 is unchanged. At the same time, the resistance values of the seventh resistor portion 141e and the tenth resistor portion 142e are simultaneously increased from 0 to R, thereby reducing the current value I22 in the second sampler 145. In the present embodiment, this operation can be implemented into the selected function table, such as contrast adjustment, and the contrast is gradually reduced.

(6) when one of the user's finger touches the touch portion 110 does not move, and the other finger of the user is from the position of the first conductive layer 141 close to the first sampler 144 toward the second sample When the position of the device 145 is slidably touched, the resistance values of the fifth resistor portion 141c and the eighth resistor portion 142c are unchanged, so that the current value I21 in the first sampler 144 is unchanged. At the same time, the resistance values of the seventh resistor portion 141e and the tenth resistor portion 142e are gradually decreased from R to 0, thereby increasing the current value I22 in the second sampler 145. In the present embodiment, this operation can be implemented into the selected function table, such as contrast adjustment, and the contrast is gradually increased.

In the button of the present invention, the position of the contact point of the first conductive layer and the second conductive layer is different due to the difference in the sliding manner of the finger of the user, so that the signals collected by the first sampler and the second sampler are different. The processor analyzes and judges the signal change manner collected by the first sampler and the second sampler, and issues an instruction according to the signal change manner to enable the electronic device to perform a corresponding function, so that one button can implement a plurality of different functions. The structure is simple and practical.

In addition, those skilled in the art can make other changes in the spirit of the invention, and all changes that are made according to the spirit of the invention should be included in the scope of the invention.

100‧‧‧ button

110‧‧‧ Touch Department

120‧‧‧Connecting Department

130‧‧‧容容

140‧‧‧Sampling Department

141‧‧‧First conductive layer

141x‧‧‧ first end

141y‧‧‧second end

141a‧‧‧First Resistance Department

141b‧‧‧second resistance unit

141c‧‧‧ Fifth Resistor

141d‧‧‧6th Resistor

141e‧‧‧ seventh resistance department

142‧‧‧Second conductive layer

142x‧‧‧ third end

142y‧‧‧ fourth end

142a‧‧‧ Third Resistor

142b‧‧‧4th Resistor

142c‧‧‧8th Resistor

142d‧‧‧Ninth Resistor

142e‧‧‧10th Resistor

143‧‧‧air insulation

143a‧‧‧Support column

144‧‧‧First sampler

145‧‧‧Second sampler

146‧‧‧ processor

150‧‧‧Power supply

150a‧‧‧ first pole

150b‧‧‧second pole

161‧‧‧First touch point

162‧‧‧second touch point

163‧‧‧ Third touch point

1 is a schematic view of a button provided by an embodiment of the present invention; FIG. 2 is an exploded view of the button of FIG. 1; FIG. 3 is a cross-sectional view of the button of FIG. 1 along a III-III direction; FIG. 5 is a schematic diagram of an internal circuit structure of a working state of a sampling portion of the button of FIG. 1; FIG. 6 is an equivalent circuit diagram of FIG. 5; FIG. 7 is another working state of a sampling portion of the button of FIG. Schematic diagram of internal circuit structure; FIG. 8 is an equivalent circuit diagram of FIG.

100‧‧‧ button

110‧‧‧ Touch Department

120‧‧‧Connecting Department

130‧‧‧容容

140‧‧‧Sampling Department

141‧‧‧First conductive layer

141x‧‧‧ first end

141y‧‧‧second end

142‧‧‧Second conductive layer

142x‧‧‧ third end

142y‧‧‧ fourth end

143‧‧‧air insulation

143a‧‧‧Support column

144‧‧‧First sampler

145‧‧‧Second sampler

146‧‧‧ processor

150‧‧‧Power supply

Claims (9)

A button includes a touch portion and a sampling portion, wherein the touch portion can sense external pressure, and the sampling portion includes a power source, a first sampler, a second sampler, a processor, a first conductive layer disposed in a gap, and a second a conductive layer, the first conductive layer includes opposite first ends and second ends, the second conductive layer includes opposite third ends and fourth ends, the first end and the third end are located on the first conductive layer and The same side of the second conductive layer, the second end and the fourth end are located on the other side of the first conductive layer and the second conductive layer, and the first end is electrically connected to the first pole of the power source via the first sampler The fourth end is electrically connected to the first pole of the power source through the second sampler, and the second end and the third end are directly electrically connected to the second pole of the power source, the processor and the first sampler and The second sampler is electrically connected, and the first sampler and the second sampler are current detectors, and the processor stores a function table corresponding to the current change mode of the first sampler and the second sampler, and is used for Analysis of current changes collected by the first sampler and the second sampler Type, and issue corresponding instruction in accordance with a current change of the manner in which the electronic device to perform a corresponding function. The button of claim 1, wherein the first conductive layer and the second conductive layer are disposed in parallel. The button of claim 1, wherein the first conductive layer and the second conductive layer are uniform resistance materials. The button of claim 1, wherein the first conductive layer and the second conductive layer have the same resistance. The button of claim 1, wherein the touch portion is made of elastic non-conductive rubber. For example, the button described in claim 1 of the patent scope, wherein the button further includes a connecting portion for electrically connecting the button and the electronic device, the connecting portion is stacked under the touch portion, and a sealed receiving cavity is formed between the touch portion and the connecting portion The sampling portion is located in the accommodating cavity. The button of claim 1, wherein the sampling portion further comprises an air insulating layer, the air insulating layer being located between the first conductive layer and the second conductive layer. The button of claim 7, wherein the third end and the fourth end of the surface of the second conductive layer facing the first conductive layer are respectively provided with a plurality of support columns made of an insulating material. The button of claim 1, wherein the current variation mode comprises: an increase in current collected by the first sampler, and a decrease in current collected by the second sampler; When the current is reduced, the current collected by the second sampler increases; the currents collected by the first sampler and the second sampler are increased; the currents collected by the first sampler and the second sampler are both To reduce; the current collected by the first sampler does not change, the current collected by the second sampler decreases; the current collected by the first sampler does not change, and the current collected by the second sampler increases. The current collected by the first sampler is reduced, the current collected by the second sampler is unchanged; and the current collected by the first sampler is increased, and the current collected by the second sampler is unchanged.