WO2007013384A1

WO2007013384A1 - Variable resistor

Info

Publication number: WO2007013384A1
Application number: PCT/JP2006/314543
Authority: WO
Inventors: Yukio Kanzaki; Jun Yashiro
Original assignee: Alps Electric Co., Ltd.
Priority date: 2005-07-27
Filing date: 2006-07-24
Publication date: 2007-02-01
Also published as: KR20080021815A; JP2007035930A; TW200712999A; CN101228596A

Abstract

[PROBLEMS] To suppress power consumption in a resistor element in a variable resistor during a non-operation state. [MEANS FOR SOLVING PROBLEMS] On a substrate surface of a second insulating substrate (17), a first resistor (11) and a second resistor (12) are arranged side by side in an insulating state. On a first insulating substrate (18) arranged to oppose to the second insulating substrate (17), a conductor (13) is formed on the surface opposing to the second insulating substrate (17). The second insulating substrate (17) and the first insulating substrate (18) are formed by flexible substrates so that the first resistor (11), the second resistor (12), and the conductor (13) may be brought into a pressed contact. Voltage is applied from a voltage output unit (21) across a first voltage application unit (14) of the first resistor (11) and a voltage application unit (15) of the second resistor (12). When in a non-pressed state, i.e., in a wait state, the first resistor (11) and the second resistor (12) are not electrically connected, thereby causing no power consumption.

Description

Specification

Variable resistor

Technical field

[0001] The present invention relates to a variable resistor that can be used in an information input device capable of tactile input of analog information to an electronic control device.

Background art

There is an information input device using a variable resistor in order to input desired analog information to an electronic control device of various devices in a touch type (see, for example, Patent Document 1). A pressure contact type variable resistor is used for such an information input device.

[0003] FIG. 9 is a configuration diagram of a pressing contact type variable resistor described in Patent Document 1 above. As shown in the figure, the variable resistor 100 includes a resistive element 101 having a predetermined length, and a flexible short circuit element 102 disposed spaced apart and opposed to the resistive element 101, and one end of the resistive element 101. The positive terminal of the battery 104 is connected to the terminal 103 on the side, and the terminal 105 on the other end side of the resistance element 101 is grounded.

As shown in FIG. 9, when the shorting element 102 is pressed toward the resistance element 101 at an arbitrary position, the shorting element 102 and the resistance element 101 conduct at the contact point P corresponding to the pressed position. Pass through. Assuming that the total resistance value of the resistance element 101 is R, the resistance values on both sides of the contact point P are Rl, R2 (R = R1 + R2), and the DC voltage of the battery 104 is Vs, the output voltage Vout of the short-circuit element 102 is Vout = (Vs / R) XR2 and appears at the output terminal 106. In the example shown in FIG. 9, the output voltage V out is converted into a digital signal by the AZD conversion 107, taken into the CPU 109 via the input / output interface 108, and used for various control.

Patent Document 1: Japanese Patent Application Laid-Open No. 6-53015

Disclosure of the invention

Problem that invention tries to solve

Since the variable resistor 100 described above always applies a voltage (V s) between both ends of the resistive element 101 while applying force, power is not supplied from the resistive element 101 even during non-operation. There is a problem of being consumed. For example, like a portable device terminal, a battery In the device to be used, the standby power of the variable resistor 100 shortens the usage time of the device, so it is desirable to suppress the standby power of the variable resistor 100 also in order to extend the usable time of the portable device terminal. .

[0006] The present invention has been made in view of the problem, and it is an object of the present invention to provide a variable resistor capable of suppressing power consumption in a resistive element at the time of non-operation.

Means to solve the problem

The variable resistor according to the present invention is characterized in that the first substrate having flexibility as the operation side on the side where one surface is pressed and operated, and the other surface of the first substrate is separated from the other surface of the first substrate. Of the first substrate, the other surface of the first substrate, and one surface of the second substrate, the first and second resistors being provided and insulated from each other And the other surface of the first substrate and the other surface of the second substrate, and the pressing position according to the pressing operation to the operation side surface of the first substrate. And a conductor for electrically connecting the corresponding position of the first resistor and the second resistor, wherein a part of the first resistor is connected to a first voltage application unit, and the second resistor is connected to the first resistor. A part is connected to the second voltage application unit, and a voltage can be applied between the first voltage application unit and the second voltage application unit. To.

According to the above configuration, since the first and second resistors constituting the resistance element of the variable resistor are mutually insulated, the operation side of the first substrate is pressed, In the standby state, the first and second resistors are kept in the non-conductive state, and power consumption in the first and second resistors does not occur. On the other hand, when the operation side of the first substrate is pressed, the conductor causes the first and second resistors to conduct at a position corresponding to the pressed position, and an output voltage corresponding to the pressed position is obtained. .

Further, according to the present invention, in the variable resistor described above, the pressing region of the operation side face of the first substrate is extended with one end and the other end, and the first voltage application unit is A second voltage applying portion is electrically connected to the first resistor at a position corresponding to one end of the pressing area, and the second voltage applying portion is connected to the second resistor at a position corresponding to the other end of the pressing area; It is characterized in that it is conductively connected to the resistor.

According to this configuration, the first voltage application unit is disposed at a position corresponding to one end side of the pressing area. Since the second voltage application unit is connected to the resistor at a position corresponding to the other end of the pressing area, the second voltage applying section is connected to the second resistor. Output voltage can be changed.

Furthermore, in the variable resistor according to the present invention, it is desirable that the first and second resistors and the conductor are disposed opposite to each other so as to be able to contact and separate. Thereby, a miniaturized variable resistor can be realized.

Further, in the variable resistor according to the present invention, the first and second resistors are respectively formed in a band shape, and the conductor has any width of the first and second resistors. It is desirable to be set wider than that. Thus, in the pressed state, the wide conductor can be reliably brought into contact with the first and second resistors, and the first and second resistors can be reliably conducted.

Further, according to the present invention, in the variable resistor, any one surface of the other surface of the first substrate or one surface of the second substrate on which the first and second resistors are provided. Preferably, an output conductive pattern electrically connected to the conductor is provided in a state where at least the operation side surface is pressed.

With this configuration, the same substrate power as the first or second substrate on which the first and second resistors are formed can also take out the output voltage through the output conductive pattern, and a lead wire or a lead wire can be obtained. Processing of the delivery pattern is facilitated.

The present invention is characterized in that, in the variable resistor, the first and second resistors are formed in the same printing step.

According to this configuration, the resistivities of the first and second resistors can be equalized, and the variation in output voltage can be suppressed.

Effect of the invention

According to the present invention, waste of power consumption in the standby state can be eliminated, and the usable time can be extended by using it for a portable device terminal or the like.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings.

FIG. 1 shows a state in which the electronic control unit is connected to the variable resistor that is applied to the present embodiment. It is structure explanatory drawing shown. The first and second substrates are omitted in FIG.

In the variable resistor 1, the resistance element is divided into a first resistor 11 and a second resistor 12, and a conductor 13 for the first resistor 11 and the second resistor 12 is provided. Are arranged opposite to each other. The first resistor 11 and the second resistor 12 both have a strip shape linearly extending in one direction, and they are arranged in a state of being insulated and separated from each other by a predetermined width. A first voltage application unit 14 serving as an electrode unit is conductively connected to one end of the first resistor 11, and is an end of the second resistor 12 opposite to an end where the first voltage application unit 14 is provided. A second voltage application unit 15 serving as an electrode unit is electrically connected to the side. In this example, the first and second voltage application units 14 and 15 are provided directly to a part of the resistors 11 and 12, respectively. The first and second voltage application units 14 and 15 are connected to the resistors 11 and 12, respectively. It can be provided at a distant position, and can be configured to be connected via a conductive pattern or conductor with good conductivity. In the example shown in FIG. 1, the first voltage application unit 14 of the first resistor 11 is applied with a predetermined potential (Vin) that is the first potential, and the second voltage application unit 15 of the second resistor 12 is A ground potential (GROUND) is applied which is a second potential different from the first potential. Note that P1 in the figure indicates the pressing range at the pressing position. The pressing range P1 is an area where the conductor 13 contacts the first and second resistors 11 and 12 simultaneously.

The configuration of the variable resistor 1 will be described in more detail with reference to FIGS. 2 (a) and 2 (b) and FIG. Figure 2

(a) is a plan view of the first resistor 11 and the second resistor 12 formed on the substrate, and FIG. 2 (b) is a plan view of the conductor 13 formed on the substrate.

As shown in FIG. 2 (a), a first resistive antibody 11 and a second resistor 12 are formed on the substrate surface of a second insulating substrate 17 as a second substrate. The first resistor 11 and the second resistor 12 have a rectangular shape extending in the left-right direction in the figure, and are separated from each other by a predetermined width and insulated. In the present embodiment, the separation width between the first resistor 11 and the second resistor 12 is made to be close to the extent that short circuiting does not occur except during pressing operation. A first voltage application unit 14 to which a predetermined potential Vin is applied is formed at the right end of the first resistor 11 corresponding to one end of the pressing region described later, and a second resistor 12 of the second resistor 12 corresponding to the other end of the pressing region. A second voltage application unit 15 to which the ground potential is applied is formed at the left end portion.

As shown in FIG. 2 (b), a rectangular conductor 13 made of a highly conductive material (for example, a silver pattern) is formed on the substrate surface of a first insulating substrate 18 as a first substrate. It is done. First The side opposite to the side on which the conductor 13 is formed, which is one side of the insulating substrate 18, is the operation side. The first insulating substrate 18 is flexible. In a pressed state where a pressing force is applied to the operation side surface of the first insulating substrate 18, the conductor 13 deforms to such an extent that it contacts the first and second resistors 11 and 12 sufficiently. In addition, in the non-pressed state where the pressing force on the operation side surface of the first insulating substrate 18 is released, the conductor 13 is separated from the first and second resistors 11 and 12 to return to the original state. A flexible substrate can be used as the first insulating substrate 18. At the end of the conductor 13, a voltage extracting portion 16 of a conductive pattern for extracting the output voltage Vout to the outside is connected conductively.

As shown in FIGS. 2 (a) and 2 (b), the rectangular conductor 13 and the formation region of the first and second resistors 11 and 12 have substantially the same shape. Even if the position of the displacement of the formation region of the conductor 13 is pressed from the operation side, the conductor 13 is brought into contact with the corresponding positions of the first and second resistors 11 and 12 at the same time according to the pressed position. The width of the conductor 13 and the separation width of the first and second resistors 11 and 12 are set so as to obtain. In the present embodiment, by making the conductive body 13 wider than the widths of the first and second resistors 11 and 12, the conductor 13 which is wider in the pressed state is used as the first and second resistors 11 and 12. In addition, the first and second resistors 11 and 12 can be reliably brought into contact with each other.

FIG. 3 is a view schematically showing a side cross sectional structure of the variable resistor 1. The first insulating substrate 17 with respect to the second insulating substrate 17 such that the first and second resistors 11 and 12 of the second insulating substrate 17 face the conductor 13 of the first insulating substrate 18. And the opposing substrates 18 are spaced apart from each other. In the spacer 19 interposed between the second insulating substrate 17 and the first insulating substrate 18, the conductor 13 is made of the first and second resistors 11 and 12 due to the pressing deformation of the first insulating substrate 18. Form a suitable space (distance) for contacting and separating. The outer peripheral portions of the second insulating substrate 17 and the first insulating substrate 18 are held by a holding member 20. Here, a region where the first and second resistors 11 and 12 and the conductor 13 are disposed so as to be opposite to each other so as to be contactable and releasable is a pressing region, and in the present embodiment, substantially the same shape as the conductor It has a rectangular shape. And this pressing area has one end and the other end in the longitudinal direction of the first and second resistors 11 and 12

Although not shown in FIG. 3, various displays including the operation area (press area) are marked. The printed flexible printing sheet is placed or adhered on the operation side of the first insulating substrate 18.

Here, the manufacturing process of the first and second resistors 11 and 12 will be described. A screen (printing mask) on which patterns corresponding to the shapes and the separation widths of the first and second resistors 11 and 12 are formed is disposed on the resistor forming surface of the second insulating substrate 17. A resistor material (for example, carbon ink) is screen printed from above to heat the resistor material. As a result, since the first resistor 11 and the second resistor 12 are formed of the same component of the resistor material, the electric resistance of the first resistor 11 and the second resistor 12 can be reduced. Characteristics can be made uniform, and variations in the output voltage Vout can be suppressed.

The variable resistor 1 configured as described above includes a first and a second first voltage application unit 14 with respect to a resistance element formed of the first and second resistors 11 and 12. Although a predetermined voltage (Vin-GROUND) is applied via the 15, when the conductor 13 is separated from the divided first and second resistors 11 and 12 (non-pressed state), Since the first resistor 11 and the second resistor 12 remain nonconductive, no power consumption occurs in the resistor elements (the first resistor 11 and the second resistor 12).

Next, the electronic control unit 2 on the information input device side connected to the variable resistor 1 will be described. The electronic control unit 2 sets a predetermined voltage between the first voltage application unit 14 connected to the first resistor 11 of the variable resistor 1 and the second voltage application unit 15 connected to the second resistor 12. A voltage output unit 21 to be applied is provided. In this embodiment, the applied potential to the first voltage application unit 14 connected to the first resistor 11 is Vin, and the applied potential to the second voltage application unit 15 connected to the second resistor 12 is the ground potential. (GROUND). The output voltage (Vout) appearing in the voltage extraction unit 16 connected to the conductor 13 is input to the analog input terminal of the AZD conversion unit 22. The AZD conversion unit 22 converts the output voltage (Vout) into a digital value and inputs the digital value to the CPU unit 23. The CPU unit 23 has an arithmetic function for calculating the touch position on the operation side of the first insulating substrate 18 of the value of the output voltage (Vout).

Next, an operation example when the variable resistor 1 is operated will be described with reference to FIGS. 4 (a) to 4 (c) and FIGS. 5 (a) and 5 (b).

FIG. 4 (a) shows the non-use state (standby state), and the operation side of the first insulating substrate 18 is The state before pressing is shown. Since the operation side of the first insulating substrate 18 is not pressed, the conductor 13 is kept apart from the first and second resistors 11 and 12. FIG. 5 (a) is a schematic circuit diagram of the variable resistor 1 in the standby state. In the standby state, the conductor 13 is not in contact with both the first resistor 11 and the second resistor 12. Since the first resistor 11 and the second resistor 12 are separated and insulated, they are in a non-conductive state. Therefore, although a voltage is applied from the voltage output unit 21 between the first resistor 11 and the second resistor 12, current flows in both the first resistor 11 and the second resistor 12. Because there is no power consumption in the first resistor 11 and the second resistor 12 occurs.

FIG. 4 (b) shows a state of use, in which the operation side of the first insulating substrate 18 is pressed. The first insulating substrate 18 is deformed toward the second insulating substrate 17 at the pressing position of the operation side, and the conductor 13 formed on the first insulating substrate 18 is at the pressing position. The first and second resistors Contact 11, 12

FIG. 5 (b) is a schematic circuit diagram at the time of pressing in which the variable resistor 1 is in use. The first resistor 11 and the second resistor 12 are electrically connected via the conductor 13 at a position corresponding to the pressing position. The distance from the voltage application end (first voltage application unit 14) of the first resistor 11 to the pressing position and the distance from the voltage application end (second voltage application unit 15) of the second resistor 12 to the pressing position The output voltage Vout corresponding to the distance appears in the voltage output portion 16 connected to the conductor 13.

Here, in order to simplify the description, the first resistor 11 and the second resistor 12 have the same size, and all resistance values are made to be the same value R, respectively. Assuming that the resistance value from the voltage application unit 14 to the pressing position of 1 is R1, and the resistance value from the second voltage application unit 15 of the second resistor 12 to the pressing position is R2, and both resistivities are the same. Do. In this case, R = R1 + R2 and Vout = (Vin / R) × R2. That is, the respective distances from the voltage application end of the first resistor 11 and the voltage application end of the second resistor 12 to the pressing position can be treated as resistance values, and the pressing position is detected from the output voltage Vout. It will be possible. The output voltage Vout is converted to a digital signal by the AZD converter 22 and taken into the CPU 23 to calculate the pressed position.

As shown in FIG. 4 (c), the pressing position is changed by sliding the finger as it is. At the same time, the contact position (conductive position) between the first resistor 11 and the conductor 13 of the second resistor 12 changes. That is, the values of Rl and R2 change according to the slide of the finger, and the output voltage Vout changes. Here, as shown in FIG. 2, the voltage application end (first voltage application unit 14) of the first resistor 11 and the voltage application end (second voltage application unit 15) of the second resistor 12 are resistances. The slide range in which the output voltage changes can be made the longest by providing the opposing ends located in the longitudinal direction of the body (pressing area) and located on one end side and the other end side of the pressing area. The longer the sliding range and the larger the amount of change in output voltage, the more accurate information input becomes possible.

As described above, according to the present embodiment, the resistive element for converting the touch position into the output voltage Vout in the variable resistor 1 is divided into a plurality of resistive elements, and separated by a predetermined width. Since the divided resistors are made conductive only at the time of operation to be able to detect the output voltage Vout, it is possible to eliminate the power consumption of the resistors in the standby state. Therefore, if the information input device using such a variable resistor 1 is used for a portable device terminal, the use time of the portable device terminal can be extended.

Further, according to the present embodiment, the distance between the first and second resistors 11 and 12 is made close to the extent not to cause a short circuit, and the first and second resistors 11 and 12 directly face each other. As described above, since the conductor 13 is disposed opposite to each other, the area of the variable resistor 1 can be made smaller compared to the arrangement in which the first and second resistors 11 and 12 and the conductor 13 are shifted in the horizontal direction. Can be

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention without departing from the scope of the present invention.

For example, in the above embodiment, the conductor 13 is formed on the first insulating substrate 18 having flexibility, but the first insulating substrate 18 is formed with the first and second resistors 11 and 12. And the conductor 13 may be formed on the second insulating substrate 17. When such a configuration is employed, the first and second resistors 11 and 12 are displaced toward the conductor 13 and contact the conductor 13 in the pressure state, but other functions The effects are the same as in the above embodiment.

In the above embodiment, voltage application to the variable resistor 1 is performed to the first and second voltage application units 14 and 15 formed on the second insulating substrate 17, and The output voltage Vo ut of the vessel 1 was taken out from the voltage take-out portion 16 formed on the first insulating substrate 18. That is, from the first and second voltage application units 14 and 15 of the second insulating substrate 17, a conducting wire or a conductive pattern The lead (not shown) was pulled out, and the lead wire or the conductive pattern (not shown) was pulled out from the voltage lead-out portion 16 of the first insulating substrate 18. It is also possible to construct such that a conductive pattern (not shown) can be drawn out only from the side of the insulating substrate on which the first and second resistors 11 and 12 are formed.

FIGS. 6 (a) and 6 (b) are diagrams showing a configuration in which a voltage application unit for applying a voltage to the resistive element of the variable resistor and a voltage extraction unit for extracting the output voltage Vout are provided on the same substrate. As shown in FIG. 6A, on the substrate surface on which the first and second resistors 11 and 12 are formed, the output conductive portion 31 is formed along the direction in which the first and second resistors 11 and 12 are formed. A voltage takeout portion 32 is provided at one end of the output conductive portion 31. The output conductive portion 31 is set to have substantially the same height as the first and second resistors 11 and 12. Further, as shown in FIG. 6 (b), the voltage extracting portion is eliminated from the conductor 33. For example, when the operation side of the first insulating substrate 18 on which the conductor 33 is formed is pressed, the first and second resistors 11 and 12 and the output conductive portion 31 contact the conductor 33 at the pressed position. As a result, the first and second resistors 11 and 12 conduct at the contact point with the conductor 33, and an output voltage corresponding to the contact point appears at the voltage output portion 32 of the output conductive portion 31.

Thus, the voltage application unit for voltage application to the resistance elements (11, 12) of the variable resistor 1

By providing (14, 15) and the voltage extracting portion (32) for extracting the output voltage Vout on the same substrate, the lead wire or pattern for the variable resistor 1 can be combined on the same substrate, and thus the lead wire or the lead wire can be obtained. Pattern processing can be facilitated and work efficiency can be improved. When the lead-out pattern is provided, the conductive pattern connected to the voltage lead-out portion 32 is formed by printing, for example, on the second insulating substrate 17 on which the first and second resistors 11 and 12 are formed. . In this case, it is preferable that the conductive patterns connected to the first and second voltage application units 14 and 15 be similarly printed.

In the above embodiment, the first and second resistors 11 and 12 and the conductor 13 are directly opposed to each other. However, the first and second resistors 11 and 12 may not necessarily be opposed to each other. , 12 can be conducted at the pressing position.

FIG. 7 is a view showing an arrangement example in which the first and second resistors and the conductor do not face each other. For example, the first resistor 41 having the conductive comb 43 on the substrate surface of the second insulating substrate 17 and the conductivity The second resistor 42 having the comb teeth 44 of the second embodiment is disposed in such a manner that the second teeth 43 and 44 of the other do not contact each other. The conductor 45 is disposed to face each other so as to face the comb teeth 43 and 44 engaged with each other. The conductor 45 is formed on the substrate surface of the first insulating substrate 18 (not shown). As a result, the comb teeth 43 of the second insulating substrate 17 and the comb teeth 44 of the second resistor 42 in the pressed position are brought into contact with the conductor 45 displaced by the press and are conducted. The positions of the comb teeth 43 and 44 in which the first resistor 41 and the second resistor 42 are in conduction are the short circuit points. The output voltage Vout corresponding to the short circuit point is taken out from the voltage extraction portion 16 of the conductor 45. In this case, the formation region of the conductor 45 disposed so as to be in contact with and separated from the comb teeth 43 and 44 engaged with each other is the pressing region.

As described above, even when the first and second resistors and the conductor are arranged not to face each other, the output voltage Vout can be obtained in accordance with the pressed position, and both can not be arranged opposite to each other. Or, it is possible to cope with the case where there is no restriction, as opposed to facing each other, which is preferable.

Further, in the above description, the first and second resistors 11 and 12 and the like have a long rectangular shape, but the present invention is not limited to such a linear shape. For example, the first and second antibodies 11 and 12 may be in the form of a meandering shape, a shape curved in an arc shape, or a non-linearly extending strip shape including a shape bent in a U-shape. In addition, the first and second resistors 11 and 12 which are not band-shaped, for example, semi-circular may be arranged to be close to each other with their straight portions close to each other.

FIGS. 8 (a) and 8 (b) are diagrams showing a modified example in which the shape of the first resistor is roughly deformed into a U shape. The first resistor 51 is bifurcated into a substantially U-shape, and a long rectangular second resistor 52 is disposed so as to fit between the first resistors 51. The conductor 13 formed on the first insulating substrate 18 is set to have a size such that the separation region (substantially U-shaped) between the first resistor 51 and the second resistor 52 is a force bar. Also in this case, the area of the conductor 13 in the portion disposed opposite to the first resistor 51 and the second resistor 52 in a contactable / removable manner is the pressing area, and the pressing area is the same as in the present embodiment. Make a long and roughly rectangular shape in the left and right direction in Figure 8!

As described above, the second resistor 52 is disposed between the two branches of the first resistor 51 in a substantially U shape. By doing this, it is possible to widely distribute the conductive area over the entire operation surface. Therefore, for example, as shown in FIG. 8A, even when the position P1 or P2 near the end of the operation side is pressed, the first resistor 51 and the second resistor 52 can be reliably made. It can be made conductive and stable analog input is possible.

In addition, the second insulating substrate 17 and the first insulating substrate 18 need not necessarily be separate separate substrates. For example, a flexible substrate having a force of one polyester film may be folded in half. It is good. In this case, it is desirable that the lower substrate placed opposite to the pressed substrate be supported by a hard plate such as a steel plate by a support plate.

Industrial applicability

The present invention is applicable to an information input apparatus capable of inputting analog information in a touch-type manner. BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of an information input device according to an embodiment.

[FIG. 2] (a) A plan view of the insulating substrate on the resistance element forming side of the variable resistor shown in FIG. 1, (b) A plan view of the insulating substrate on the conductor forming side of the variable resistor shown in FIG.

[FIG. 3] A diagram showing the cross-sectional structure of the variable resistor shown in FIG.

[FIG. 4] (a) A diagram showing a non-use state before touching on the operating surface of the variable resistor in the above embodiment, (b) showing a using state in which the operating surface of the variable resistor is touching in the above embodiment (C) In the above embodiment, a sliding view of the touch position of the operation surface of the variable resistor.

[FIG. 5] (a) Equivalent circuit diagram of variable resistor in non-use state corresponding to FIG. 4 (a), (b) Equivalent circuit diagram of variable resistor in use state corresponding to FIG. 4 (b)

[FIG. 6] (a) A plan view of the insulating substrate on the resistance element forming side in a modification in which the output voltage outlet is changed, a plan view of the insulating substrate on the conductor formation side in the same modification

[Fig. 7] A plan view of the insulating substrate on the resistance element forming side in a modification in which the arrangement relationship between the resistor and the conductor is changed

[FIG. 8] (a) A plan view of the insulating substrate on the resistance element forming side in a modification in which the first resistor is changed to a U shape, (b) a plane of the insulating substrate on the conductor forming side in the same modification Figure [Fig. 9] Configuration diagram of a conventional pressing contact type variable resistor

1 Variable resistor

2 Electronic control unit

11, 41, 51 first resistor

12, 42, 52 Second resistor

13, 33, 45 Conductors

14, 15 Voltage application part

16, 32 voltage outlet

17 Second insulating substrate (second substrate)

18 First insulating substrate (first substrate)

19 Spacer

21 Voltage output unit

22 AZD Converter

23 CPU

31 Conductive part for output

Claims

The scope of the claims

[1] A flexible first substrate, which is an operation side on the side where one surface is pressed and operated, and a second substrate disposed so as to face the other surface of the first substrate at a distance. A substrate, first and second resistors provided on any one of the other surface of the first substrate and one surface of the second substrate and mutually insulated, and the other of the first substrate And the second resistor is provided on the other of the second substrate, and the first resistor and the second according to the pressing position in accordance with the pressing operation on the operation side surface of the first substrate. A conductor for conducting the corresponding position of the resistor, and a portion of the first resistor is a first voltage application unit, and a portion of the second resistor is a second voltage application unit. A variable resistor, which is conductively connected and configured to be capable of applying a voltage between the first voltage application unit and the second voltage application unit.

[2] The pressing area of the operation side surface of the first substrate is extended with one end and the other end, and the first voltage application unit is located at a position corresponding to one end side of the pressing area The first resistor is conductively connected, and the second voltage application unit is conductively connected to the second resistor at a position corresponding to the other end of the pressing region. The variable resistor according to item 1.

[3] The variable resistor according to claim 1 or 2, wherein the first and second resistors and the conductor are disposed opposite to each other so as to be able to be attached and separated.

[4] The first and second resistors are each formed in a band shape, and the conductor is provided wider than any width of the first and second resistors. The variable resistor according to claim 3.

[5] At least the operation side is pressed to the other surface of the first substrate or any one surface of the second substrate on which the first and second resistors are provided. The variable resistor according to any one of claims 1 to 4, wherein in the state, an output conductive pattern electrically connected to the conductor is provided.

[6] The variable resistor according to any one of claims 1 to 5, wherein the first and second resistors are formed in the same printing process.