DE102015103386B4 - Touch control rheostat - Google Patents

Abstract

Touch control variable resistor, comprising:a resistance substrate (1) which has a resistance substrate main body (11) and two resistance layers (12, 13) extending along an extension direction (L1) and arranged at a distance from one another on the resistance substrate main body (11);a conductor substrate (2) which lies on the resistance substrate (1) and has a conductor substrate main body (21) and a conductor layer (22), and wherein the conductor substrate main body (21) has a connecting surface which faces the two resistance layers (12, 13) of the resistance substrate (1), and wherein the conductor layer (22) is arranged on the connecting surface and extends in the extension direction (L1), and wherein the conductor layer (22) covers the two resistance layers (12, 13); andat least one insulating/separating element (3) which is present between the resistance substrate (1) and the conductor substrate (2) and is provided with a recess (31) which is located between the two resistance layers (12, 13) and the conductor layer (22), and wherein either the resistance substrate main body (11) or the conductor substrate main body (21) is designed as a flexible contact substrate so that the conductor layer (22) comes into contact with the two resistance layers (12, 13) at the same time when the flexible contact substrate is pressed through the recess (31); wherein:the two resistance layers (12, 13) include a first resistance layer (12) and a second resistance layer (13), the first resistance layer (12) having a first positive pole contact (121) and a first negative pole contact (122), and the second resistance layer (13) having a second positive pole contact (131) and a second negative pole contact (132), and the first positive pole contact (121) and the second negative pole contact (132) are arranged on the same side, while the first negative pole contact (122) and the second positive pole contact (131) are arranged on the same side;the resistance substrate (1) further comprises two electrode units (14, 15), the first resistance layer (12) and the second resistance layer (13) being electrically connected to the respective electrode units (14, 15);the electrode units (14, 15) are arranged at one end of the connection section 112 the first electrode unit (14) has a first positive pole contact (141) and a first negative pole contact (142), and the first positive pole contact (121) is electrically connected to the first positive pole contact (141), the first negative pole contact (122) is electrically connected to the first negative pole contact (142); andthe second electrode unit (15) has a second positive pole contact (151) and a second negative pole contact (152), and the second positive pole contact (131) is electrically connected to the second positive pole contact (151), the second negative pole contact (132) is electrically connected to the second negative pole contact (152).

Description

The invention relates to a touch control rheostat, in particular a touch control rheostat which has a conductor layer which can be pushed through a recess of an insulating/separating element and then electrically connected to a resistance layer.

DE 43 35 004 C2 discloses a touch control variable resistor comprising: a resistance substrate having a resistance substrate main body and resistance layers extending along an extension direction and arranged at a distance from one another on the resistance substrate main body; a conductor substrate having a conductor layer, and an insulating/separating element provided between the resistance substrate and the conductor substrate, and wherein either the resistance substrate main body or the conductor substrate main body is designed as a flexible contact substrate so that the conductor layer comes into contact with the resistance layers.

Additional touch control rheostats are available DE 36 04 707 A1 , EN 36 24 166 A1 , DE 37 10 286 A1 and DE 31 37 279 A1 Conventional adjustable resistors mainly include a circuit board provided with a resistance layer and a resistance adjusting element provided with a conductive brush. By moving the resistance adjusting element, the contact position of the conductive brush with the resistance layer can be changed, thereby adjusting the result of the signal output.

In 1 is a perspective view of a conventional sliding resistor. In 2 is an exploded perspective view of a conventional sliding resistor. As in 1 and 2 As shown, a conventional sliding resistor PA100 has a base PA1 and a resistance setting element PA2.

The base PA1 has a substrate PA11, two conductor circuits PA12, two resistance circuits PA13 and a cover PA14. The conductor circuits PA12 and the resistance circuits PA13 are arranged along an extension direction L on the substrate PA11, wherein the resistance circuits PA13 and the conductor circuits PA12 are arranged offset from one another. The cover PA14 is provided with a position limiting slot PA141 and six fastening projections PA142. The position limiting slot PA141 extends in the extension direction L, wherein the fastening projections PA142 engage in the substrate PA11 in a form-fitting manner such that the cover PA14 is fastened to the substrate PA11.

The resistance adjusting element PA2 has a carriage PA21, a conductive contact piece PA22, a tap PA23, a spring washer PA24 and a washer PA25. The carriage PA21 is arranged on the substrate PA11 so that it can be moved along the extension direction L. The conductive contact piece PA22 is riveted to the carriage PA21 and serves to provide the electrical connection between the conductor circuits PA12 and the resistance circuits PA13. The tap PA23 is attached to the carriage PA21 and protrudes from the position limiting slot PA141 so that the user can slide the resistance adjusting element PA2 back and forth along the extension direction L through the tap PA23.

The spring washer PA24 is pushed onto the tap PA23 and rests against the slide PA21. The washer PA25 is also pushed onto the tap PA23 and is provided between the spring washer PA24 and the cover PA14 in order to reduce the frictional resistance when moving the resistance adjusting element PA2.

As mentioned above, the resistance adjusting element PA2 is provided between the base PA1 and the cover PA14. The tap PA23 can be moved back and forth along the extension direction L through the position limiting slot PA141 in the cover PA14. During the movement, the contact position of the conductive contact piece PA22 with the conductive circuits PA12 and the resistance circuits PA13 can be changed, whereby the resistance value changes when the current flows through different positions of the resistance circuits PA13. This allows the user to adjust the output signals.

Although the conventional adjustable resistors allow the user to adjust the output signals using the tap or a rotary knob, the conventional adjustable resistor takes up a certain amount of space because the resistance adjusting element in the conventional adjustable resistor is composed of the tap and the slide. In addition, the operation is carried out by the resistance adjusting element, so the sensitivity during operation is impaired.

In addition, an adjustable resistor can only provide one output signal. Therefore, if the user wants to have multiple output signals, the user must operate multiple adjustable resistors.

The invention is based on the object of avoiding the above-mentioned deficiencies and of providing a touch control rheostat which requires less space and ensures increased operation sensitivity, wherein the flexible contact substrate has a two-point touch control operation, whereby two output signals can be generated.

This object is achieved according to the invention by a touch control rheostat having the features specified in claims 1 and 3. Further advantageous developments of the invention emerge from the subclaims.

• ein Widerstandssubstrat, das einen Widerstandssubstrat-Hauptkörper und zwei entlang einer Erstreckungsrichtung sich erstreckende, voneinander beabstandet auf dem Widerstandssubstrat-Hauptkörper angeordnete Widerstandsschichten aufweist;
• ein Leitersubstrat, das auf dem Widerstandssubstrat liegt und einen Leitersubstrat-Hauptkörper und eine Leiterschicht aufweist, und wobei der Leitersubstrat-Hauptkörper eine Verbindungsfläche aufweist, der den beiden Widerstandsschichten des Widerstandssubstrats zugewandt ist, und wobei die Leiterschicht an der Verbindungsfläche angeordnet ist und sich in Erstreckungsrichtung erstreckt, und wobei die Leiterschicht die beiden Widerstandsschichten überdeckt; und
• wenigstens ein Isolier-/Trennelement, das zwischen dem Widerstandssubstrat und dem Leitersubstrat vorgesehen und mit einer Aussparung versehen ist, die sich zwischen den beiden Widerstandsschichten und der Leiterschicht befindet, und wobei entweder der Widerstandssubstrat-Hauptkörper oder der Leitersubstrat-Hauptkörper als flexibles Kontaktsubstrat ausgeführt ist, sodass die Leiterschicht gleichzeitig mit den beiden Widerstandsschichten in Berührung kommt, wenn das flexible Kontaktsubstrat gedrückt durch die Aussparung hindurchgeführt wird.

According to the invention, there is provided a touch control rheostat comprising:

• a resistor substrate having a resistor substrate main body and two resistor layers extending along an extension direction and arranged at a distance from each other on the resistor substrate main body;
• a conductor substrate lying on the resistance substrate and having a conductor substrate main body and a conductor layer, and wherein the conductor substrate main body has a connecting surface facing the two resistance layers of the resistance substrate, and wherein the conductor layer is arranged on the connecting surface and extends in the extension direction, and wherein the conductor layer covers the two resistance layers; and
• at least one insulating/separating member provided between the resistance substrate and the conductor substrate and provided with a recess located between the two resistance layers and the conductor layer, and wherein either the resistance substrate main body or the conductor substrate main body is designed as a flexible contact substrate so that the conductor layer comes into contact with the two resistance layers at the same time when the flexible contact substrate is pressed through the recess.

According to the invention, the contact substrate can be pressed so that the conductor layer and the two resistance layers come into contact with each other. The first positive pole contact and the first negative pole contact of the first resistance layer are arranged in the opposite direction to the second positive pole contact and the second negative pole contact of the second resistance layer. In this way, two pressure difference values are generated when the user presses the flexible contact substrate with one finger so that the conductor layer comes into contact with the two resistance layers. If the user presses the flexible contact substrate with his two fingers, two independent pressure difference values result because the two resistance layers have different flow paths.

According to the invention, the two resistance layers include a first resistance layer and a second resistance layer, the first resistance layer having a first positive pole contact and a first negative pole contact, while the second resistance layer having a second positive pole contact and a second negative pole contact. The first positive pole contact and the second negative pole contact are arranged on the same side, while the first negative pole contact and the second positive pole contact are arranged on the same side. By reversing the arrangement of the positive and negative poles of the two resistance layers, two pressure difference values can be generated when the user presses the flexible contact substrate with two fingers.

According to the invention, the resistance substrate further comprises two electrode units, wherein the first resistance layer and the second resistance layer are electrically connected to the respective electrode units.

According to the invention, the two resistance layers are a carbon lacquer layer.

According to the invention, the insulating/separating element is an insulating disc.

According to the invention, the conductor layer is made of conductive material.

• ein Widerstandssubstrat, das einen Widerstandssubstrat-Hauptkörper, wenigstens eine entlang einer Erstreckungsrichtung sich erstreckende, voneinander beabstandet auf dem Widerstandssubstrat-Hauptkörper angeordnete Widerstandsschichten und mehrere Erfassungsschaltungsschichten aufweist, wobei die Erfassungsschaltungsschichten entlang der Erstreckungsrichtung voneinander beabstandet auf dem Widerstandssubstrat-Hauptkörper angeordnet und elektrisch mit den jeweiligen Widerstandsschichten verbunden sind;
• ein Leitersubstrat, das auf dem Widerstandssubstrat liegt und einen Leitersubstrat-Hauptkörper und eine Leiterschicht aufweist, und wobei der Leitersubstrat-Hauptkörper eine Verbindungsfläche aufweist, der der Widerstandssubstrat-Hauptkörper zugewandt ist, und wobei die Leiterschicht an der Verbindungsfläche angeordnet ist und sich in Erstreckungsrichtung erstreckt, und wobei die Leiterschicht die Erfassungsschaltungsschichten überdeckt; und
• ein Isolier-/Trennelement, das zwischen dem Widerstandssubstrat und dem Leitersubstrat vorgesehen ist und der Trennung der Erfassungsschaltungsschichten von der Leiterschicht dient, wobei das Isolier-/Trennelement mit einer entlang der Erstreckungsrichtung sich erstreckenden Aussparung versehen ist, und wobei die Erfassungsschaltungsschichten und die Leiterschicht auf die Aussparung ausgerichtet sind, und wobei entweder der Widerstandssubstrat-Hauptkörper oder der Leitersubstrat-Hauptkörper als flexibles Kontaktsubstrat ausgeführt ist, sodass die Leiterschicht mit wenigstens einer der Erfassungsschaltungsschichten in Berührung kommt, wenn das flexible Kontaktsubstrat gedrückt und die Leiterschicht durch die Aussparung hindurchgeführt wird.

According to the invention, there is provided a touch control rheostat comprising:

• a resistor substrate having a resistor substrate main body, at least one resistor layer extending along an extension direction and arranged at a distance from one another on the resistor substrate main body, and a plurality of detection circuit layers, the detection circuit layers being arranged at a distance from one another along the extension direction on the resistor substrate main body and being electrically connected to the respective resistor layers;
• a conductor substrate lying on the resistance substrate and having a conductor substrate main body and a conductor layer, and wherein the conductor substrate main body has a connection surface facing the resistance substrate main body, and wherein the conductor layer is arranged on the connection surface and extends in the extension direction, and wherein the conductor layer covers the detection circuit layers; and
• an insulating/separating member provided between the resistance substrate and the conductor substrate and serving to separate the detection circuit layers from the conductor layer, wherein the insulating/separating member is provided with a recess extending along the extension direction, and wherein the detection circuit layers and the conductor layer are aligned with the recess, and wherein either the resistance substrate main body or the conductor substrate main body is designed as a flexible contact substrate so that the conductor layer comes into contact with at least one of the detection circuit layers when the flexible contact substrate is pressed and the conductor layer is passed through the recess.

According to the invention, the user can press on the flexible contact substrate so that the conductor layers come into contact with the sensing circuit layers. This establishes the electrical connection with the sensing circuit layers of the conductor layer. The first positive pole contact and the first negative pole contact of the first resistance layer are arranged in the opposite direction to the second positive pole contact and the second negative pole contact of the second resistance layer. In this way, two pressure difference values are generated when the user presses on the flexible contact substrate with one finger so that the conductor layer comes into contact with the two resistance layers. When the user presses on the flexible contact substrate with his two fingers, two independent pressure difference values result because the two resistance layers have different flow paths. The sensing circuit layers are arranged along the extension direction. If the user wants to try to electrically connect the conductor layer to the resistance layer via the flexible contact substrate, the sensing circuit layers can be used to establish an electrical connection with the resistance layer. In other words, the pressure or tapping area is extended by the sensing circuit layers, giving the user a larger operating range.

According to the invention, the detection circuit layers extend along a detection circuit extension direction perpendicular to the extension direction.

According to the invention, two resistance layers are provided spaced apart from each other, the detection circuit layers including a plurality of first detection circuit layers and a plurality of second detection circuit layers. The first detection circuit layers are electrically connected to the first resistance layer, while the first detection circuit layers are electrically connected to the second resistance layer, the first and second detection circuit layers being arranged in a staggered manner. Preferably, the first resistance layer has a first resistance layer plus contact and a first resistance layer minus contact, the second resistance layer has a second resistance layer plus contact and a second resistance layer minus contact. The first resistance layer plus contact and the second resistance layer minus contact are arranged on one side of the resistance substrate main body, while the first resistance layer minus contact and the second resistance layer plus contact are arranged on the other side of the resistance substrate main body.

According to the invention, the resistance substrate further comprises at least one electrode unit which is provided with a positive pole contact and a negative pole contact, wherein the resistance layer is electrically connected on both sides to the positive pole contact and the negative pole contact.

According to the invention, the resistance layer is a carbon lacquer layer.

• 1 eine perspektivische Darstellung eines herkömmlichen Schiebewiderstands;
• 2 eine perspektivische Explosionsdarstellung des herkömmlichen Schiebewiderstands;
• 3 eine schematische Darstellung eines ersten Ausführungsbeispiels eines erfindungsgemäßen Touch-Control-Regelwiderstands;
• 4 eine perspektivische Explosionsdarstellung des ersten Ausführungsbeispiels eines erfindungsgemäßen Touch-Control-Regelwiderstands;
• 5 einen Schaltungsplan des ersten Ausführungsbeispiels eines erfindungsgemäßen Touch-Control-Regelwiderstands, der elektrisch mit einem Spannungssensorelement verbunden ist;
• 6 eine schematische Darstellung des ersten Ausführungsbeispiels eines erfindungsgemäßen Touch-Control-Regelwiderstands, mit dem ein Finger in Berührung steht; und
• 7 einen Schaltungsplan des ersten Ausführungsbeispiels eines erfindungsgemäßen Touch-Control-Regelwiderstands, mit dem ein Finger in Berührung steht;
• 8 eine schematische Darstellung des ersten Ausführungsbeispiels eines erfindungsgemäßen Touch-Control-Regelwiderstands, mit dem zwei Finger in Berührung stehen; und
• 9 einen Schaltungsplan des ersten Ausführungsbeispiels eines erfindungsgemäßen Touch-Control-Regelwiderstands, mit dem zwei Finger in Berührung stehen;
• 10 einen weiteren Schaltungsplan des ersten Ausführungsbeispiels eines erfindungsgemäßen Touch-Control-Regelwiderstands, der elektrisch mit einem Spannungssensorelement verbunden ist;
• 11 eine perspektivische Explosionsdarstellung des zweiten Ausführungsbeispiels eines erfindungsgemäßen Touch-Control-Regelwiderstands; und
• 12 eine perspektivische Explosionsdarstellung des zweiten Ausführungsbeispiels eines erfindungsgemäßen Touch-Control-Regelwiderstands von einer anderen Seite gesehen.

The invention and its embodiments are explained in more detail below with reference to the drawing. The drawing shows:

• 1 a perspective view of a conventional sliding resistor;
• 2 an exploded perspective view of the conventional sliding resistor;
• 3 a schematic representation of a first embodiment of a touch control rheostat according to the invention;
• 4 a perspective exploded view of the first embodiment of a touch control rheostat according to the invention;
• 5 a circuit diagram of the first embodiment of a touch control variable resistor according to the invention, which is electrically connected to a voltage sensor element;
• 6 a schematic representation of the first embodiment of an inventive ßen touch control rheostat with which a finger is in contact; and
• 7 a circuit diagram of the first embodiment of a touch control variable resistor according to the invention, with which a finger is in contact;
• 8th a schematic representation of the first embodiment of a touch control variable resistor according to the invention, with which two fingers are in contact; and
• 9 a circuit diagram of the first embodiment of a touch control variable resistor according to the invention, with which two fingers are in contact;
• 10 a further circuit diagram of the first embodiment of a touch control variable resistor according to the invention, which is electrically connected to a voltage sensor element;
• 11 a perspective exploded view of the second embodiment of a touch control rheostat according to the invention; and
• 12 a perspective exploded view of the second embodiment of a touch control rheostat according to the invention seen from another side.

As can be seen from the 3 until 5 As can be seen, a touch control variable resistor 100 according to the invention has a resistance substrate 1, a conductor substrate 2 and an insulating/separating element 3.

The resistance substrate 1 has a resistance substrate main body 11, two resistance layers 12, 13 and two electrode units 14, 15. The resistance substrate main body 11 has a contact portion 111 and a connection portion 112, wherein the connection portion 112 extends from the contact portion 111 in a direction opposite to the extension direction L1.

The two resistance layers 12, 13 extend along an extension direction L1 and are arranged at a distance from one another on the resistance substrate main body 11. The resistance values of the resistance layers 12, 13 can be equal or unequal. The extension direction L1 runs in a straight line, but the invention is not intended to be limited to this. In other embodiments, the extension direction L1 can be in the shape of a circular arc.

The first resistance layer 12 has a first positive pole contact 121 and a first negative pole contact 122. The second resistance layer 13 has a second positive pole contact 131 and a second negative pole contact 132. The first positive pole contact 121 and the second negative pole contact 132 are arranged on the same side, while the first negative pole contact 122 and the second positive pole contact 131 are arranged on the same side. The two resistance layers 12, 13 are a carbon lacquer layer.

The electrode units 14, 15 are arranged at one end of the connection section 112. The first electrode unit 14 has a first positive pole contact 141 and a first negative pole contact 142. The first positive pole contact 121 is electrically connected to the first positive pole contact 141, wherein the first negative pole contact 122 is electrically connected to the first negative pole contact 142.

The second electrode unit 15 has a second positive pole contact 151 and a second negative pole contact 152. The second positive pole contact 131 is electrically connected to the second positive pole contact 151, wherein the second negative pole contact 132 is electrically connected to the second negative pole contact 152.

The conductor substrate 2 is placed on the resistor substrate 1 and has a conductor substrate main body 21 and a conductor layer 22.

The conductor substrate main body 21 has a conductive portion 211 and an output portion 212. The conductive portion 211 has a connection surface [not shown] facing the resistance substrate main body 11. The output portion 212 extends from the conductive portion 211 in a direction opposite to the extension direction L1. The output portion 212 has an output contact 2121.

The conductor layer 22 is arranged on the connection surface and extends in the extension direction L1 to the output contact 2121. The conductor layer 22 covers the first resistance layer 12 and the second resistance layer 13. In the illustrated embodiment, the conductor layer 22 is made of the metal material having a high conductivity, which is selected from a group comprising gold, silver, copper and tin. To clarify that the conductor layer 22 covers the first resistance layer 12 and the second resistance layer 13, the conductor layer 22 is in 3 shown in perspective.

The insulating/separating element 3 is provided between the resistance substrate 1 and the conductor substrate 2 and is provided with a recess 31 in the middle. The recess 31 is located between the two resistance layers 12, 13 and the Conductor layer 22. In the embodiment shown, the insulating/separating element 3 is a flexible or a hard insulating disk. In other embodiments, the insulating/separating element 3 can be assembled from a plurality of insulating bodies in such a way that the recess is formed.

Either the resistance substrate main body 11 or the conductor substrate main body 21 associated with the conductor substrate 2 is designed as a flexible contact substrate. In the exemplary embodiment shown, the conductor substrate main body 21 is designed as a flexible contact substrate. If the conductor substrate main body 21 designed as a flexible contact substrate is pressed so that it passes through the recess 31, the conductor layer 22 comes into contact with both the first resistance layer 12 and the second resistance layer 13. In other exemplary embodiments, the resistance substrate main body 11 can serve as a flexible contact substrate.

As from 5 until 7 , the first positive pole contact 141 and the first negative pole contact 142 are electrically connected to a power source 200a, with the second positive pole contact 151 and the second negative pole contact 152 being electrically connected to a power source 200b. A first pressure difference sensor element V1 is connected between an electrode contact 221 and the first positive pole contact 141, with a second pressure difference sensor element V2 being connected between the electrode contact 221 and the second positive pole contact 151. In the illustrated embodiment, the output voltage of the power source 200a is equal to that of the power source 200b. In other embodiments, the positive pole of a power source can be connected to the first positive pole contact 141 and the second positive pole contact 151, with the negative pole of the power source being connected to the first negative pole contact 142 and the second negative pole contact 152.

When a user's finger is pressed onto the conductor substrate main body 21, the conductor layer 22 located in a first touch area A1 corresponding to the finger can penetrate the recess 31 and come into contact with the first resistance layer 12 and the second resistance layer 13. In this case, the first pressure difference sensor element V1 detects a pressure difference in a resistance section R1, resulting in a first pressure difference signal. At the same time, the second pressure difference sensor element V2 detects a pressure difference in a resistance section R2, resulting in a second pressure difference signal. In practice, the first pressure difference sensor element V1 and the second pressure difference sensor element V2 are connected to a processing module. According to the first and second pressure difference signals, the processing module generates two touch signals.

It will then be 8th and 9 combined with 5 When two fingers of a user are pressed onto the conductor substrate main body 21, the conductor layer 22 located in a first and second contact area A1, A2 corresponding to the fingers can come into contact with the first resistance layer 12 and the second resistance layer 13. In this way, the current of the power source 200a can electrically reach the first pressure difference sensor element V1 via the conductor layer 22 located in the second contact area A2 having a shorter resistance path, and the current of the power source 200b can electrically reach the second pressure difference sensor element V2 via the conductor layer 22 located in the first contact area A1 having a shorter resistance path. In this way, the first pressure difference sensor element V1 can detect the first pressure difference signal of a resistance section R1', whereby the second pressure difference sensor element V2 can detect the second pressure difference signal of a resistance section R1', whereby the processing module connected to the first pressure difference sensor element V1 and the second pressure difference sensor element V2 can generate two tip signals. If one of the two fingers located in the first and second touch areas A1, A2 move along the extension direction L1, a corresponding signal of the two tip signals is changed, whereby the other tip signal remains unchanged.

In contrast to the first positive pole contact 141 and the second positive pole contact 151 being electrically connected to the first pressure difference sensor element V1 and the second pressure difference sensor element V2, the first negative pole contact 142 and the second negative pole contact 152 of the touch control variable resistor according to the invention are electrically connected to a first pressure difference sensor element V1' and a second pressure difference sensor element V2' [see 10 ]. The electrical connection of the first negative pole contact 142 and the second negative pole contact 152 of the touch control variable resistor according to the invention to the first pressure difference sensor element V1' and the second pressure difference sensor element V2' corresponds to the electrical connection of the first positive pole contact 141 and the second positive pole contact 151 to the first pressure difference sensor element V1 and the second pressure difference sensor element V2, but with the difference that the current paths of the first pressure difference sensor element V1' and the second pressure difference sensor element V2' are opposite. This sub The difference will be understandable to the person skilled in the art after having read the above-mentioned embodiment.

From the above-mentioned first embodiment, it is clear that the touch control variable resistor according to the invention uses an insulating/separating element 3 which serves to separate the resistance substrate 1 and the conductor substrate 2. In comparison with conventional adjustable resistors, the touch control variable resistor according to the invention has a single-point touch control operation and a two-point touch control operation. This generates two tap signals. In the two-point touch control operation, a tap signal with a constant output value and a tap signal with an output value dependent on the movement point can be generated by one tap point not moving and another tap point moving. The two tap points can move simultaneously to generate two correspondingly variable output values. This ensures more flexible operation.

With the touch control variable resistor according to the invention, the user can press on the flexible contact substrate so that the conductor layer 22 comes into contact with the first resistance layer 12 and the second resistance layer 13. The first positive pole contact 121 and the first negative pole contact 122 of the first resistance layer 12 are arranged in the opposite direction to the second positive pole contact 131 and the second negative pole contact 132 of the second resistance layer 13. In this way, two pressure difference values are generated when the user presses on the flexible contact substrate with a finger so that the conductor layer 22 comes into contact with the two resistance layers. This results in two tap signals. If the user presses on the flexible contact substrate with two fingers, two pressure difference values are also generated, resulting in two tap signals. In practice, two pressure difference signals can be generated by the touch control variable resistor according to the invention. By moving in the touch area, the pressure difference signals can be changed in order to provide further control options.

In 11 and 12 A second embodiment of a touch control variable resistor according to the invention is shown. As can be seen from the 11 and 12 As can be seen, a touch control variable resistor 100' according to the invention has a resistance substrate 1', a conductor substrate 2' and an insulating/separating element 3'.

The resistance substrate 1' includes a resistance substrate main body 11', a first resistance layer 12a, a second resistance layer 12b, a plurality of detection circuit layers 13a, 13b, and two electrode units 14', 15'. The resistance substrate main body 11' includes a contact portion 111' and a terminal portion 112', the terminal portion 112' extending from the contact portion 111' along an extension direction L2.

The resistance layers 12a, 12b extend along the extension direction L2 and are arranged at a distance from each other on the contact portion 111' of the resistance substrate main body 11'. The first resistance layer 12a has a first resistance layer plus contact [not shown] and a first resistance layer minus contact [not shown]. The second resistance layer 12b has a second resistance layer plus contact [not shown] and a second resistance layer minus contact [not shown]. The first resistance layer plus contact and the second resistance layer minus contact are arranged on one side of the resistance substrate main body 11', with the first resistance layer minus contact and the second resistance layer plus contact being arranged on the other side of the resistance substrate main body 11'.

The first detection circuit layers 13a are arranged spaced from each other along the extension direction L2 on the touch portion 111' of the resistance substrate main body 11'. The first detection circuit layers 13a are located between the first and second resistance layers 12a, 12b and are electrically connected to the first resistance layer 12a. Similarly, the second detection circuit layers 13b are arranged spaced from each other along the extension direction L2 on the touch portion 111' of the resistance substrate main body 11'. The second detection circuit layers 13b are located between the first and second resistance layers 12a, 12b and are electrically connected to the second resistance layer 12b. The first and second detection circuit layers 13a, 13b are arranged in a staggered manner along the extension direction L2. Furthermore, the first and second detection circuit layers 13a, 13b extend along a detection circuit extension direction L3 perpendicular to the extension direction L2.

The electrode units 14', 15' are arranged at one end of the connection section 112'. The first electrode unit 14' has a first th positive pole contact 141' and a first negative pole contact 142'. The positive pole contact of the first resistance layer 12a is electrically connected to the first positive pole contact 141', wherein the negative pole contact of the first resistance layer 12a is electrically connected to the first negative pole contact 142'. The second electrode unit 15' has a second positive pole contact 151' and a second negative pole contact 152'. The positive pole contact of the second resistance layer 12b is electrically connected to the second positive pole contact 151', wherein the negative pole contact of the second resistance layer 12b is electrically connected to the second negative pole contact 152'.

The conductor substrate 2' is placed on the resistor substrate 1' and has a conductor substrate main body 21' and a conductor layer 22'.

The conductor substrate main body 21' has a conductive portion 211' and an output portion 212'. The conductive portion 211' has a connection surface 2111' that the resistance substrate main body 11' faces. The output portion 212' extends from the conductive portion 211' in the extension direction L2. The output portion 212' has an output contact 2121'.

The conductor layer 22' is arranged on the connection surface 2111' and extends in the extension direction L2 to the output contact 2121' of the output section 212'. The conductor layer 22' covers the first and second detection circuit layers 13a, 13b. In the embodiment shown, the conductor layer 22' is made of a conductive metal material. The conductor layer 22' is a silver lacquer layer.

The insulating/separating element 3' is provided between the resistance substrate 1' and the conductor substrate 2' and serves to separate the detection circuit layers 13a, 13b from the conductor layer 22'. In addition, the insulating/separating element 3' is provided with a recess 31' extending along the extension direction L2. The detection circuit layers 13a, 13b and the conductor layer 22' are aligned with the recess 31'.

In the illustrated embodiment, the conductor substrate main body 21' is a flexible contact substrate. The conductor substrate main body 21' is pressed so that the conductor layer 22' is electrically connected to one of the first detection circuit layers 13a and one of the second detection circuit layers 13b through the recess 31'. In other embodiments, the resistor substrate main body 11' may be implemented as a flexible contact substrate. In this case, the conductor layer 22' may be electrically connected to one of the first detection circuit layers 13a and one of the second detection circuit layers 13b through the recess 31' when the resistor substrate main body 11' is pressed. In addition, the resistor substrate main body 11' and the conductor substrate main body 21' may be implemented as a flexible contact substrate, one of which needs to be supported by a hard base.

The touch control rheostat 100' according to 11 and 12 is similar to the touch control variable resistor 100 according to the first embodiment, but with the difference that the touch control variable resistor 100' has a plurality of detection circuit layers 13a, 13b between the two resistance layers 12a, 12b, which are arranged in a staggered manner and are connected to the respective resistance layers 12a, 12b. In this way, the conductor layer 22' can be electrically connected to the first resistance layer 12a via the first detection circuit layer 13a or electrically connected to the second resistance layer 12b via the second detection circuit layer 13b when the conductor substrate main body 21' is pressed so that the conductor substrate main body 21' is electrically connected to the first detection circuit layer 13a or the second detection circuit layer 13b through the recess 31'. In addition, the first detection circuit layers 13a extend along a detection circuit extension direction L3 perpendicular to the extension direction L2, and the second detection circuit layers 13b extend along a detection circuit extension direction L3 perpendicular to the extension direction L2 inversely. When the conductor substrate main body 21' is aligned with the recess 31' and pressed along the extension direction L2, the contact area to the conductor layer 22' can be increased significantly by the detection circuit layers 13a, 13b perpendicular to the extension direction L2. That is, the user has a larger area for pressing displacement, thereby ensuring higher control sensitivity. The circuit diagram for the touch control variable resistor 100 is essentially the same as that for the touch control variable resistor 100' and therefore does not need to be explained in detail here.

In comparison to conventional adjustable resistors, the touch control variable resistor according to the invention uses an insulating/separating element to separate the resistor substrate from the conductor substrate. This effectively reduces the space required. In addition, a immediate, sensitive control is ensured. The touch control variable resistor according to the invention has a single-point touch control operation and a two-point touch control operation. This generates two touch signals. In the two-point touch control operation, a touch signal with a constant output value and a touch signal with an output value dependent on the movement point can be generated by one touch point not moving and another touch point moving. The two touch points can move simultaneously to generate two correspondingly variable output values. This ensures more flexible operation.

Furthermore, according to the invention, a plurality of detection circuit layers are provided so that the user can bring the conductor layer into contact with the detection circuit layers through the flexible contact substrate in order to generate a position-dependent resistance divider signal. Since the detection circuit layers 13a, 13b are arranged along the extension direction L2, the pressure range of the flexible contact substrate can be increased. That is, the pressure range depends on the length of the detection circuit layers and the total distance of the arranged first detection circuit layers. This achieves increased control convenience.

List of reference symbols

PA100

Sliding resistance

PA1

base

PA2

Resistance actuator

PA21

Sleds

PA22

conductive contact piece

PA23

Tap

PA24

Spring washer

PA25

Washer

PA11

Substrat

PA12

Ladder circuit

PA13

Resistor circuit

PA14

cover

P141

Position limiting slot

P142

Mounting projection

100

Touch control rheostat

PA22

Metal swivel section

PA23

Sliding piece

PA24

Spring washer

PA25

Washer

100

Touch control rheostat

1, 1'

Resistor substrate

11, 11'

Resistor substrate main body

111, 111'

Contact section

112, 112'

Connection section

12, 12a

first resistance layer

121

first positive pole contact

122

first negative pole contact

12b, 13

second resistance layer

131

second positive pole contact

132

second negative pole contact

13a

first detection circuit layer

13b

second detection circuit layer

14, 14'

first electrode unit

141, 141'

first positive pole contact

142, 142'

first negative pole contact

15, 15'

second electrode unit

151, 151'

second positive pole contact

152, 152'

second negative pole contact

2, 2'

Conductor substrate

21, 21'

Conductor substrate main body

211, 211'

conductive section

2111'

Connection surface

2121, 2121'

Output contact

22, 22'

Conductor layer

3, 3'

Insulating/separating element

31, 31'

Recess

200a, 200b

Energy source

A1

first contact area

A2

second contact area

L, L1, L2

Direction of extension

L3

Detection circuit extension direction

R1, R1', R2

Resistance section

V1, V1'

first pressure difference sensor element

V2, V2'

second pressure difference sensor element

Claims (5)

Touch control variable resistor, comprising: a resistance substrate (1) having a resistance substrate main body (11) and two resistance layers (12, 13) extending along an extension direction (L1) and arranged at a distance from one another on the resistance substrate main body (11); a conductor substrate (2) lying on the resistance substrate (1) and having a conductor substrate main body (21) and a conductor layer (22), and wherein the conductor substrate main body (21) has a connecting surface facing the two resistance layers (12, 13) of the resistance substrate (1), and wherein the conductor layer (22) is arranged on the connecting surface and extends in the extension direction (L1), and wherein the conductor layer (22) covers the two resistance layers (12, 13); and at least one insulating/separating element (3) which is present between the resistance substrate (1) and the conductor substrate (2) and is provided with a recess (31) which is located between the two resistance layers (12, 13) and the conductor layer (22), and wherein either the resistance substrate main body (11) or the conductor substrate main body (21) is designed as a flexible contact substrate so that the conductor layer (22) comes into contact with the two resistance layers (12, 13) at the same time when the flexible contact substrate is pressed through the recess (31); wherein: the two resistance layers (12, 13) include a first resistance layer (12) and a second resistance layer (13), wherein the first resistance layer (12) has a first positive pole contact (121) and a first negative pole contact (122), and wherein the second resistance layer (13) has a second positive pole contact (131) and a second negative pole contact (132), and wherein the first positive pole contact (121) and the second negative pole contact (132) are arranged on the same side, while the first negative pole contact (122) and the second positive pole contact (131) are arranged on the same side; the resistance substrate (1) further comprises two electrode units (14, 15), wherein the first resistance layer (12) and the second resistance layer (13) are electrically connected to the respective electrode units (14, 15); the electrode units (14, 15) are arranged at one end of the connection section 112, the first electrode unit (14) has a first positive pole contact (141) and a first negative pole contact (142), and the first positive pole contact (121) is electrically connected to the first positive pole contact (141), wherein the first negative pole contact (122) is electrically connected to the first negative pole contact (142); and the second electrode unit (15) has a second positive pole contact (151) and a second negative pole contact (152), and the second positive pole contact (131) is electrically connected to the second positive pole contact (151), wherein the second negative pole contact (132) is electrically connected to the second negative pole contact (152). Touch control rheostat according to Claim 1 , characterized in that the two resistance layers (12, 13) are a carbon lacquer layer. A touch control variable resistor comprising: a resistance substrate (1') having a resistance substrate main body (11'), two resistance layers (12a, 12b) extending along an extension direction (L2) and arranged at a distance from one another on the resistance substrate main body (11'), and a plurality of detection circuit layers (13a, 13b), wherein the detection circuit layers (13a, 13b) are arranged at a distance from one another along the extension direction (L2) on the resistance substrate main body (11') and are electrically connected to the respective resistance layers (12a, 12b); a conductor substrate (2') lying on the resistor substrate (1') and having a conductor substrate main body (21') and a conductor layer (22'), and wherein the conductor substrate main body (21') has a connection surface (2111') facing the resistor substrate main body (11'), and wherein the conductor layer (22') is arranged on the connection surface and extends in the extension direction (L2), and wherein the conductor layer (22') covers the detection circuit layers (13a, 13b); and an insulating/separating member (3') provided between the resistive substrate (1') and the conductor substrate (2') and serving to separate the sensing circuit layers (13a, 13b) from the conductor layer (22'), wherein the insulating/separating member (3') is provided with a recess (31') extending along the extension direction (L2), and wherein the sensing circuit layers (13a, 13b) and the conductor layer (22') are aligned with the recess (31'), and wherein either the resistive substrate main body (11') or the conductor substrate main body (21') is designed as a flexible contact substrate so that the conductor layer (22') comes into contact with at least one of the sensing circuit layers (13a, 13b) when the flexible contact substrate is pressed and the conductor layer (22') is passed through the recess (31'); wherein: the two resistance layers (12a, 12b) are spaced apart from each other, wherein the detection circuit layers (13a, 13b) comprise a plurality of first detection circuit layers (13a) and including a plurality of second sensing circuit layers (13b), and wherein the first sensing circuit layers (13a) are electrically connected to the first resistance layer (12a) while the second sensing circuit layers (13b) are electrically connected to the second resistance layer (12b), and wherein the first and second sensing circuit layers (13a, 13b) are arranged in a staggered manner. the first resistance layer (12a) has a first resistance layer plus contact and a first resistance layer minus contact, the second resistance layer (12b) has a second resistance layer plus contact and a second resistance layer minus contact, and wherein the first resistance layer plus contact and the second resistance layer minus contact are arranged on one side of the resistance substrate main body (11'), while the first resistance layer minus contact and the second resistance layer plus contact are arranged on the other side of the resistance substrate main body (11'); and the resistance substrate (1') further comprises at least one electrode unit (14', 15') provided with a positive pole contact (141', 151') and a negative pole contact (142', 152'), each of the resistance layers (12a, 12b) being electrically connected on both sides to the positive pole contact (141', 151') and the negative pole contact (142', 152'). Touch control rheostat according to Claim 3 , characterized in that the detection circuit layers (13a, 13b) extend along a detection circuit extension direction (L3) perpendicular to the extension direction (L2). Touch control rheostat according to Claim 3 or 4 , characterized in that the resistance layers (12a, 12b) are carbon lacquer layers.

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