TW201535431A - Touch control variable resistance structure - Google Patents

Abstract

A touch control variable resistance structure includes a resistance substrate, a conductive substrate and an insulation separating unit. The resistance substrate includes a resistance substrate body and two separated resistance layers extended along an extension direction. The conductive substrate is arranged on the resistance substrate, and includes a conductive substrate body and a conductive layer. The conductive layer is arranged on a coupling face of the conductive substrate body facing the resistance layers, and the conductive layer correspondingly covers the two resistance layers. The insulation separating unit is arranged between the resistance substrate and the conductive substrate, and has a hollow slot. The hollow slot is correspondingly located between the two resistance layers and the conductive layers. One of the resistance substrate body and the conductive substrate body is a flexible touch control substrate, for allowing the conductive layer to contact the two resistance layers at the same time when the flexible touch control substrate is pressed to pass through the hollow slot.

Description

Touch type variable resistor structure

The present invention relates to a touch-sensitive variable resistor structure, and more particularly to a touch-sensitive variable resistor structure in which a conductive layer and a two-resistance layer are in contact with each other by means of contact pressure.

Generally, the existing variable resistor is mainly composed of a circuit board provided with a resistance layer and a resistance adjusting component having a conductive brush, so that the user can change the contact of the conductive brush by controlling the slip of the resistance adjusting component. Go to the position of the resistance layer and adjust the result of the signal output.

Referring to the first and second figures, the first figure shows a perspective view of a prior art straight-slip variable resistor; the second figure shows a perspective exploded view of a prior art straight-slip variable resistor. As shown, the always-slip varistor PA100 includes a pedestal PA1 and a resistance adjusting component PA2.

The pedestal PA1 includes a substrate PA11, two conductive circuits PA12, two resistor circuits PA13, and an outer cover PA14.

The conductive circuit PA12 and the resistor circuit PA13 are disposed on the substrate PA11 along an extending direction L, and the resistor circuit PA13 and the conductive circuit PA12 are inter-phased.

The outer cover PA14 has a limiting groove PA141 and six engaging folding feet PA142. The limiting groove PA141 extends along the extending direction L, and the folding groove The foot PA142 is bently engaged with the substrate PA11, respectively, so that the outer cover PA14 is fixedly sleeved on the substrate PA11.

The resistance adjusting component PA2 includes a sliding type PA21, a conductive contact piece PA22, a slider PA23, a spring piece PA24, and a spacer PA25.

The sliding pattern PA21 is movably disposed on the substrate PA11 along the extending direction L, and the conductive contact sheet PA22 is fixedly disposed on the sliding pattern PA21, and is electrically connected to the conductive circuit PA12 and the resistor circuit PA13.

The slider PA23 is fixed on the sliding type PA21 and is disposed through the limiting slot PA141, so that the user can control the resistance adjusting component PA2 to move back and forth in the extending direction L by using the slider 23.

The elastic piece PA24 is sleeved on the sliding handle PA23 and abuts against the sliding type PA21, and the spacer PA25 is sleeved on the sliding handle PA23 and is disposed between the elastic piece PA24 and the outer cover PA14 to reduce the resistance. Adjust the frictional resistance when the component PA2 moves.

As described above, the resistor adjusting unit PA2 is disposed between the base PA1 and the outer cover PA14, and the slider PA23 is moved back and forth in the extending direction L in the limiting slot PA141 by the limitation of the outer cover PA14. During the movement, the position of the conductive contact pad PA22 contacting the conductive circuit PA12 and the resistor circuit PA13 is changed, so that the resistance value at the time of energization changes with the position of the resistor circuit PA13, and the user can adjust the output. Signal.

However, although the existing variable resistor can provide a user to adjust the output signal by using a slider or a knob, due to a variable resistor Only one output signal can be provided, so when the user wants to control a plurality of different output signals, multiple variable resistors need to be operated to have multiple output signals.

As described above, since the variable resistor can only provide a single operation mode of the user and generate an output signal according to the prior art, the object of the present invention is to provide a touch variable resistor structure. The user can perform double touch operation on the flexible touch substrate, and accordingly generate two sets of output signals.

In view of the above, the present invention provides a touch-sensitive varistor structure for solving the problems of the prior art, and includes a resistive substrate, a conductive substrate, and at least one insulating spacer. The resistor substrate comprises a resistor substrate body and a two-resistance layer extending along an extending direction and spaced apart from the resistor substrate body. The conductive substrate is disposed on the resistor substrate and includes a conductive substrate body and a conductive layer. Conductive Substrate The system has a coupling surface, and the coupling surface faces the two resistance layers of the resistor substrate. The conductive layer is disposed on the coupling surface extending along the extending direction, and the conductive layer correspondingly covers the two resistance layers. The insulating spacer element is disposed between the resistive substrate and the conductive substrate and has a hollow through slot, and the hollow through slot is correspondingly located between the two resistive layer and the conductive layer. The one of the resistive substrate body and the conductive substrate body is a flexible touch substrate, so that when the user presses the flexible touch substrate through the hollow through slot, the conductive layer simultaneously contacts the two resistive layers.

An auxiliary technical means derived from the above-mentioned necessary technical means is that one of the two resistance layers is a first resistance layer, and the other is a second resistance. The first resistive layer has a positive end of the first resistive layer and a negative end of the first resistive layer, and the second resistive layer has a positive end of the second resistive layer and a negative end of the second resistive layer, and the first resistive layer is positive The extreme side is on the same side as the negative end of the second resistive layer, and the negative end of the first resistive layer is on the same side as the positive end of the second resistive layer.

An auxiliary technical means derived from the above-mentioned necessary technical means is that the resistive substrate further comprises a two-electrode group, and the first resistive layer and the second resistive layer are electrically connected to the two-electrode group, respectively.

An auxiliary technical means derived from the above-mentioned essential technical means is that the insulating partitioning element is an insulating ring piece.

An auxiliary technical means derived from the above-mentioned essential technical means is that the conductive layer is composed of a conductive metal material.

An auxiliary technical means derived from the above-mentioned necessary technical means is that the two resistive layers are all a carbon paint layer.

Based on the above, the touch-sensitive varistor structure provided by the present invention allows the user to contact the conductive layer and the two-resistance layer by pressing the flexible touch substrate, and the positive terminal and the negative of the two-resistance layer are Extremely the opposite setting, so when the user presses the soft touch substrate at a single point, the conductive layer and the two resistive layers are simultaneously in contact with each other, thereby generating a two-pressure difference; and when the user performs the soft touch substrate When the two touches are pressed, the independent two-pressure difference values are generated due to the different conduction paths of the two resistance layers.

The specific embodiments of the present invention will be further described by the following examples and drawings.

PA100‧‧‧straight slip variable resistor

PA1‧‧‧ base

PA2‧‧‧Resistor adjustment kit

PA21‧‧‧Sliding type

PA22‧‧‧Electrical contact piece

PA23‧‧‧ slider

PA24‧‧‧Shrap

PA25‧‧‧shims

PA11‧‧‧ substrate

PA12‧‧‧ conductive circuit

PA13‧‧‧resist circuit

PA14‧‧‧ cover

PA141‧‧‧ Limit slot

PA142‧‧‧Card and Fold

100‧‧‧Touch variable resistance structure

200a, 200b‧‧‧ power supply

1‧‧‧Resistive substrate

11‧‧‧Resistor substrate body

12‧‧‧First resistance layer

121‧‧‧First resistance layer positive terminal

122‧‧‧First resistance layer negative terminal

13‧‧‧second resistance layer

131‧‧‧second resistance layer positive terminal

132‧‧‧second resistance layer negative end

14‧‧‧First electrode group

141‧‧‧First positive contact

142‧‧‧First negative contact

15‧‧‧Second electrode group

151‧‧‧second positive contact

152‧‧‧second negative contact

2‧‧‧Electrical substrate

21‧‧‧ Conductive substrate body

22‧‧‧ Conductive layer

221‧‧‧Electrode contacts

3‧‧‧Insulation separation element

31‧‧‧ hollow slot

A1‧‧‧First touch zone

A2‧‧‧Second touch zone

D, L‧‧‧ extending direction

R1, R1', R2‧‧‧ resistance segments

V1, V1'‧‧‧ first differential pressure sensing element

V2, V2'‧‧‧ second differential pressure sensing element

The first figure shows a perspective view of a prior art straight-slip variable resistor; the second figure shows a perspective exploded view of a prior art straight-slip variable resistor; the third figure shows the preferred embodiment of the present invention. FIG. 4 is a schematic exploded perspective view of a touch-sensitive varistor structure according to a preferred embodiment of the present invention; and FIG. 5 is a schematic view showing a preferred embodiment of the present invention. The schematic diagram of a touch-type variable resistor structure electrically connected to a voltage sensing component; the sixth diagram shows a schematic diagram of a touch-sensitive variable resistor structure provided by a preferred embodiment of the present invention; 7 is a schematic diagram showing a circuit of a touch-type variable resistor structure according to a preferred embodiment of the present invention when subjected to a touch voltage as shown in FIG. 6; and FIG. 8 is a view showing a preferred embodiment of the present invention with two fingers. A schematic diagram of a touch-sensitive varistor structure is provided; the ninth figure is a schematic circuit diagram of the touch-sensitive varistor structure provided by the preferred embodiment of the present invention when subjected to a contact voltage as in the eighth embodiment; And a tenth line shows another schematic circuit diagram of FIG sensing elements of the touch sensing voltage variable resistor electrically structure preferred embodiment of the present invention is provided in the link.

Please refer to the third to fifth figures, and the third figure shows that the present invention is better. The schematic diagram of the touch-sensitive varistor structure provided by the embodiment; the fourth figure shows a perspective exploded view of the touch-sensitive varistor structure provided by the preferred embodiment of the present invention; and the fifth figure shows the preferred embodiment of the present invention. The schematic diagram of the touch-sensitive variable resistor structure electrically connected to the voltage sensing component is provided.

As shown, a touch-type variable resistance structure 100 includes a resistor substrate 1, a conductive substrate 2, and an insulating spacer element 3.

The resistor substrate 1 includes a resistor substrate body 11, a two-resistance layer (the first resistance layer 12 and the second resistance layer 13), and two electrode groups (the first electrode group 14 and the second electrode group 15). The first resistive layer 12 and the second resistive layer 13 extend along an extending direction D and are adjacently spaced apart from each other on the resistive substrate body 11, and the resistance values of the first resistive layer 12 and the second resistive layer 13 may be the same. Can be different. The extending direction D of the embodiment is a linear direction, but is not limited thereto. In other embodiments, the extending direction may also be an arc direction.

The first resistive layer 12 has a first resistive layer positive terminal 121 and a first resistive layer negative terminal 122. The second resistive layer 13 has a second resistive layer positive terminal 131 and a second resistive layer negative terminal 132. A resistive layer positive terminal 121 and a second resistive layer negative terminal 132 are on the same side, and the first resistive layer negative terminal 122 and the second resistive layer positive terminal 131 are on the same side. Wherein, the two resistance layers of the embodiment are all a carbon paint layer.

The first electrode assembly 14 includes a first positive electrode contact 141 and a first negative electrode contact 142. The first positive electrode terminal 121 is electrically connected to the first positive electrode contact 141 by a circuit, and the first resistive layer negative terminal 122 The circuit is electrically connected to the first negative electrode contact 142. The second resistive layer positive terminal 131 is The circuit is electrically connected to the second positive contact 151, and the second negative end 132 of the second resistive layer is electrically connected to the second negative contact 152 by a circuit.

The conductive substrate 2 is disposed on the resistive substrate 1 , and the conductive substrate 2 includes a conductive substrate body 21 and a conductive layer 22 . The conductive substrate body 21 has a coupling surface (not shown), and the coupling surface faces the first resistance layer 12 and the second resistance layer 13 of the resistance substrate 1 . The conductive layer 22 is disposed on the coupling surface extending along the extending direction D and has an electrode contact 221 , and the conductive layer 22 correspondingly covers the first resistance layer 12 and the second resistance layer 13 . The conductive layer 22 of the present embodiment is composed of a conductive metal material, and the conductive metal material includes at least a metal material having high conductivity such as gold, silver, copper or tin, and the range of the conductive layer 22 is clearly described. The first resistive layer 12 and the second resistive layer 13 are covered, and thus the conductive layer 22 in the third figure is represented in a see-through manner.

The insulating spacer element 3 is disposed between the resistor substrate 1 and the conductive substrate 2 and has a hollow through slot 31. The hollow through slots 31 are correspondingly located between the two resistance layers (the first resistance layer 12 and the second resistance layer 13) and the conductive layer 22. The insulating spacer element 3 of the embodiment is an insulating ring piece, and the insulating ring piece may be a flexible insulating ring piece or a rigid insulating ring piece. However, in other embodiments, the insulating dividing element 3 may be composed of a plurality of insulating bodies. Composition and enclosing a hollow slot.

In addition, one of the resistive substrate body 11 and the conductive substrate body 21 of the present invention is a flexible touch substrate. In this embodiment, the conductive substrate body 21 is used as a flexible touch substrate. When the substrate, that is, the conductive substrate body 21 of the embodiment is pressed through the hollow through slot 31, the conductive layer 22 simultaneously contacts the first resistive layer 12 and the second resistor. Layer 13; however, in other embodiments, the resistive substrate body 11 can also be used as a flexible touch substrate.

Please refer to FIG. 5 to FIG. 7 . FIG. 6 is a schematic plan view showing a touch-sensitive varistor structure provided by a preferred embodiment of the present invention with one finger; FIG. 7 is a view showing a preferred embodiment of the present invention. The touch-sensitive variable resistor structure provided by the example is subjected to a circuit diagram as shown in FIG. As shown in the figure, the first positive contact 141 and the first negative contact 142 are electrically connected to a power supply 200a, and the second positive contact 151 and the second negative contact 152 are electrically connected to a power supply 200b, and A first differential pressure sensing element V1 is disposed between the electrode contact 221 and the first positive electrode contact 141, and a second differential pressure sensing element V2 is disposed between the electrode contact 221 and the second positive contact 151. The power supply 200a of the present embodiment has the same output voltage as the power supply 200b. In other embodiments, the positive pole of one power supply can be simultaneously connected to the first positive contact 141 and the second positive contact 151, and The negative electrode of the power source is connected to the first negative electrode contact 142 and the second negative electrode contact 152.

When the user touches the conductive substrate body 21 with the finger, the conductive layer 22 in the first contact region A1 corresponding to the finger passes through the hollow through slot 31 and simultaneously contacts the first resistive layer 12 and the second resistor. Layer 13, at this time, the first differential pressure sensing element V1 senses the differential pressure of a resistor segment R1, thereby generating a first differential pressure signal, while the second differential pressure sensing component V2 senses a The voltage difference of the resistor segment R2 generates a second differential pressure signal. In practice, the first differential pressure sensing component V1 and the second differential pressure sensing component V2 are connected to a processing module, and the processing module generates a two-touch according to the first differential pressure signal and the second differential pressure signal. Control signal.

Referring to FIG. 5, FIG. 8 and FIG. 9 , FIG. 8 is a schematic plan view showing a touch-sensitive varistor structure provided by a preferred embodiment of the present invention with two fingers; The touch-sensitive variable resistance structure provided by the preferred embodiment of the present invention is subjected to a circuit diagram when it is pressed by the eighth embodiment. As shown in the figure, when the user touches the conductive substrate body 21 with two fingers, the conductive layer 22 will have a first touch region A1 and a second touch region A2 corresponding to the pressure of the two fingers. The first resistance layer 12 and the second resistance layer 13 are contacted, and the current of the power source 200a is electrically connected to the first differential pressure sensing element V1 via the conductive layer 22 located in the second contact region A2 with a short resistance path. The current of the power source 200b is electrically connected to the second differential pressure sensing element V2 via the conductive layer 22 located in the first contact region A1 of the shorter resistance path, so that the first differential pressure sensing element V1 is sensed to correspond to a first differential pressure signal of the resistor segment R1', and the second differential pressure sensing component V2 senses a second differential pressure signal corresponding to the resistor segment R2, thereby connecting to the first differential pressure sensing component V1 The processing module with the second differential pressure sensing component V2 can generate two touch signals. In addition, when the user moves one of the first touch region A1 and the second touch region A2 along the extending direction D, one of the two touch signals changes, and the other one changes. stay the same.

Please refer to the tenth figure, which is a schematic diagram showing another circuit of the touch-type variable resistance structure electrically connected to the voltage sensing element according to the preferred embodiment of the present invention. As shown in the figure, the first positive electrode contact 141 and the second positive electrode contact 151 are electrically connected to the connection manner of the first differential pressure sensing element V1 and the second differential pressure sensing element V2, respectively. The touch-type variable resistance structure 100 of the present invention can also be as shown in the tenth figure. The first negative electrode contact 142 and the second negative electrode contact 152 are electrically connected to a first differential pressure sensing element V1 ′ and a second differential pressure sensing element V2 ′, respectively, and the connection mode is The principle is the same as the principle that the first positive electrode contact 141 and the second positive electrode contact 151 are respectively electrically connected to the first differential pressure sensing element V1 and the second differential pressure sensing element V2, and the difference is only in the first pressure. The current path of the differential sensing element V1' and the second differential pressure sensing element V2' will be in the opposite state, and it is believed that one of ordinary skill in the art will understand after reading the above embodiments.

In summary, since the touch varistor structure provided by the present invention utilizes an insulating spacer element to separate the resistive substrate from the conductive substrate, the touch of the present invention is compared to the prior art varistor structure. The control variable resistor structure can effectively provide the user with single-touch and dual-touch operation, and then generate two touch signals, and can be moved by one pressing point and another when the two-touch is used. The operating mode of the pressing point movement generates a touch signal with a fixed output value and a touch signal whose output value changes as the pressing point moves.

Further, the touch-sensitive varistor structure of the present invention allows the user to simultaneously contact the first resistive layer and the second resistive layer by pressing the flexible touch substrate, and the first resistive layer is The positive end of the first resistive layer and the negative end of the first resistive layer are opposite to the positive end of the second resistive layer of the second resistive layer and the negative end of the second resistive layer, so that when the user touches the flexible touch substrate with one finger When the conductive layer is pressed into the two-resistance layer at the same time, two pressure difference values are generated, so that two touch signals can be generated according to the test; and, when used When two fingers are pressed, two pressure difference values are also generated, and two touch signals are generated accordingly. In practice, the user can generate two sets of differential pressure signals by using the touch-sensitive varistor structure of the present invention, and can change the differential pressure signal by moving the pressing area, thereby increasing the variability of the manipulation.

The features and spirit of the present invention will be more apparent from the detailed description of the preferred embodiments. Various other modifications and changes can be made by those skilled in the art in the light of the above-described embodiments of the invention. However, various modifications and changes made in accordance with the embodiments of the present invention are still within the scope of the inventive spirit and the scope of the invention.

100‧‧‧Touch variable resistance structure

1‧‧‧Resistive substrate

11‧‧‧Resistor substrate body

12‧‧‧First resistance layer

13‧‧‧second resistance layer

141‧‧‧First positive contact

142‧‧‧First negative contact

151‧‧‧second positive contact

152‧‧‧second negative contact

2‧‧‧Electrical substrate

21‧‧‧ Conductive substrate body

22‧‧‧ Conductive layer

221‧‧‧Electrode contacts

3‧‧‧Insulation separation element

31‧‧‧ hollow slot

D‧‧‧ Extension direction

Claims (6)

A touch-type variable resistor structure comprising: a resistor substrate comprising: a resistor substrate body; and a two-resistive layer extending along an extending direction and spaced apart from the resistor substrate body; a conductive substrate On the resistor substrate, and comprising: a conductive substrate body having a coupling surface facing the two resistance layers of the resistor substrate; and a conductive layer extending along the extending direction The conductive layer correspondingly covers the two resistance layers; and at least one insulating spacer element disposed between the resistance substrate and the conductive substrate and having a hollow through slot Correspondingly, the resistive substrate body and the conductive substrate body are one of the flexible touch substrates, so that the user presses the flexible touch substrate through the soft touch substrate. When the hollow is grooved, the conductive layer is simultaneously contacted to the two resistance layers. The touch-sensitive varistor structure of claim 1, wherein one of the two resistance layers is a first resistance layer, and the other is a second resistance layer, the first resistance layer The first resistive layer positive end and the first resistive layer negative end, the second resistive layer has a second resistive layer positive end and a second resistive layer negative end, and the first resistive layer positive end and the first The negative ends of the two resistive layers are on the same side, and the negative end of the first resistive layer is on the same side as the positive end of the second resistive layer. The touch-sensitive varistor structure of claim 1, wherein the resistor substrate further comprises a two-electrode group, and the first resistor layer and the second resistor layer are electrically connected to the two-electrode group respectively . The touch-sensitive varistor structure of claim 1, wherein the insulating spacer element is an insulating ring piece. The touch-sensitive varistor structure of claim 1, wherein the conductive layer is made of a conductive metal material. The touch-sensitive varistor structure of claim 1, wherein the two resistor layers are each a carbon lacquer layer.