TWI648753B - Mechanical control module and variable resistor assembly thereof - Google Patents

Abstract

The invention discloses a mechanical regulating device and a variable resistance component thereof. The variable resistance component includes a first conductive member, a second conductive member, and a rotatable structure. The first conductive member is electrically connected to a first electrode. The second conductive member is electrically connected to a second electrode. The first conductive member and the second conductive member are separated from each other, and the second conductive member is movably disposed above the first conductive member. The rotatable structure is rotatably disposed on the second conductive member and rotatably contacts the first conductive member. The rotatable structure has an arcuate surface that slidably contacts the first conductive member, thereby reducing frictional resistance between the rotatable structure and the first conductive member.

Description

Mechanical control device and variable resistance component thereof

The present invention relates to a mechanical control device and a variable resistance assembly thereof, and more particularly to a mechanical control device for reducing frictional resistance and a variable resistance assembly thereof.

The existing resistance regulator mainly includes a carbon film and a carbon brush which are in contact with each other. The size of the resistance value is adjusted by the movement of the carbon brush on the carbon film. However, the contact between the carbon film and the carbon brush will result in higher frictional resistance, resulting in loss of the carbon film and the carbon brush, and lowering the service life.

The technical problem to be solved by the present invention is to provide a mechanical regulating device and a variable resistance component thereof against the deficiencies of the prior art.

In order to solve the above technical problem, one of the technical solutions adopted by the present invention is to provide a variable resistance component including: a first conductive member, a second conductive member, and a rotatable structure. The first conductive member is electrically connected to a first electrode. The second conductive member is electrically connected to a second electrode, wherein the first conductive member and the second conductive member are separated from each other, and the second conductive member is movably disposed at the first conductive Above the piece. The rotatable structure is rotatably disposed on the second conductive member and rotatably contacts the first conductive member. Wherein the rotatable structure has an arcuate surface that slidably contacts the first conductive member.

Further, the second conductive member has two extending arms corresponding to each other to And an accommodating space formed between the two extending arms, wherein the rotatable structure comprises a pivoting shaft connected between the two extending arms and accommodated in the accommodating space And a pivoting roller that is pivotally disposed on the pivoting shaft and partially exposed outside the receiving space, and the pivoting roller has an arc that slidably contacts the first conductive member a face to reduce frictional resistance between the pivoting roller and the first conductive member.

Further, the second conductive member has two extending arms corresponding to each other and an accommodating space formed between the two extending arms, wherein the rotatable structure includes a connection to the two a pivoting shaft between the extending arms and received in the accommodating space, and a pivoting ball that is pivotally disposed on the pivoting shaft and partially exposed outside the accommodating space, and The pivoting ball has a spherical surface slidably contacting the first conductive member to reduce frictional resistance between the pivoting ball and the first conductive member.

Further, the second conductive member has an extension arm, wherein the rotatable structure includes a pivot shaft extending through the extension arm and two opposite sides respectively pivotally disposed on the pivot shaft a pivoting roller on the side end portion and separated by the extending arm, and each of the pivoting rollers has a circular arc surface slidably contacting the first conductive member to lower the pivoting roller Frictional resistance with the first conductive member.

Further, the second conductive member has an extension arm, wherein the rotatable structure includes a pivot shaft extending through the extension arm and two opposite sides respectively pivotally disposed on the pivot shaft a pivoting ball on the side end portion and separated by the extending arm, and each of the pivoting balls has a spherical surface slidably contacting the first conductive member to reduce the pivoting roller The frictional resistance between the ball and the first conductive member.

Further, the bottom surface of the second conductive member has a recess, wherein the rotatable structure includes a pivot shaft received in the recess and a pivoting shaft disposed on the pivot shaft a pivoting roller that is partially and partially exposed outside the groove, and The pivoting roller has a circular arc surface slidably contacting the first conductive member to reduce frictional resistance between the pivoting roller and the first conductive member.

Further, the bottom surface of the second conductive member has a recess, wherein the rotatable structure includes a pivot shaft received in the recess and a pivoting shaft disposed on the pivot shaft And a pivoting ball that is partially exposed outside the groove, and the pivoting ball has a spherical surface that slidably contacts the first conductive member to reduce the pivoting roller and the first Frictional resistance between a conductive member.

Further, the bottom surface of the second conductive member has a groove, wherein the rotatable structure includes a rolling ball partially disposed in the groove, and the rolling ball has a slidable contact The spherical surface of the first conductive member is described to reduce the frictional resistance between the rolling ball and the first conductive member.

Further, the second conductive member is an elastic conductive member for providing a predetermined elastic force, and the rotatable structure is biased downward against the first conductive portion by the elastic force provided by the second conductive member Pieces.

In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a mechanical control device using a variable resistance component, wherein the variable resistance component includes: a first conductive member, a second conductive member and a rotatable structure. The first conductive member is electrically connected to a first electrode. The second conductive member is electrically connected to a second electrode, wherein the first conductive member and the second conductive member are separated from each other, and the second conductive member is movably disposed at the first conductive Above the piece. The rotatable structure is rotatably disposed on the second conductive member and rotatably contacts the first conductive member. Wherein the rotatable structure has an arcuate surface that slidably contacts the first conductive member.

Further, the mechanical control device further includes: a control component, the control component and the variable resistance component interact with each other, and the second conductive component is driven by the control component relative to the The first conductive member performs linear movement or arc movement.

One of the beneficial effects of the present invention is that the mechanical control device and the variable resistance assembly thereof can be rotatably disposed on the second conductive member and can be rotated by the "rotatable structure" Contacting the first conductive member" and "the rotatable structure has a curved surface that slidably contacts the first conductive member" to reduce the rotatable structure and the first conductive Frictional resistance between pieces.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the detailed description and drawings of the invention.

D‧‧‧Mechanical control device

P1‧‧‧ first electrode

P2‧‧‧second electrode

S‧‧‧Variable Resistor Components

1‧‧‧First conductive parts

2‧‧‧Second conductive parts

21‧‧‧Extension arm

22‧‧‧ accommodating space

23‧‧‧ Groove

3‧‧‧Rotatable structure

30‧‧‧ pivot shaft

31‧‧‧ pivot wheel

310‧‧‧Arc face

32‧‧‧ pivot ball

320‧‧‧ spherical

33‧‧‧ rolling sphere

330‧‧‧ spherical

R‧‧‧ knob

M‧‧‧3⁄2

H‧‧‧ adjustable distance

1 is a schematic plan view of a variable resistor assembly according to a first embodiment of the present invention.

Fig. 2 is a side elevational view showing the variable resistance unit of the first embodiment of the present invention.

3 is a top plan view of a variable resistance component according to a second embodiment of the present invention.

4 is a top plan view of a variable resistance component according to a third embodiment of the present invention.

Figure 5 is a side elevational view of a variable resistance assembly in accordance with a third embodiment of the present invention.

Figure 6 is a top plan view of a variable resistance assembly in accordance with a fourth embodiment of the present invention.

Fig. 7 is a top plan view showing a variable resistor unit according to a fifth embodiment of the present invention.

Figure 8 is a side elevational view showing a variable resistance unit of a fifth embodiment of the present invention.

Figure 9 is a top plan view of a variable resistance assembly in accordance with a sixth embodiment of the present invention.

Fig. 10 is a top plan view showing a variable resistance unit of a seventh embodiment of the present invention.

Figure 11 is a side elevational view showing a variable resistance unit of a seventh embodiment of the present invention.

Figure 12 is a schematic view of a mechanical control device according to an eighth embodiment of the present invention.

Figure 13 is a schematic view of a mechanical regulating device according to a ninth embodiment of the present invention.

The following is a description of embodiments of the present invention relating to "mechanical control device and variable resistor assembly thereof" by way of specific embodiments, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present specification. The present invention may be embodied or applied by other different embodiments, the various items in this specification. The details may also be varied and varied based on the various aspects and applications without departing from the spirit and scope of the invention. In addition, the drawings of the present invention are merely illustrative and are not intended to be stated in the actual size. The following embodiments will further explain the related technical content of the present invention, but the disclosure is not intended to limit the scope of the present invention.

[First Embodiment]

Referring to FIG. 1 and FIG. 2, a first embodiment of the present invention provides a variable resistance component S including a first conductive member 1, a second conductive member 2, and a rotatable structure 3. In addition, the first conductive member 1 is electrically connected to a first electrode P1, the second conductive member 2 is electrically connected to a second electrode P2, and the rotatable structure 3 is rotatably disposed on the second conductive member 2 The first conductive member 1 is rotatably contacted. It should be noted that, as shown in FIG. 2, there is a contact point (not labeled) between the rotatable structure 3 and the first conductive member 1, and the present invention can be adjusted between the contact point and the end of the first conductive member 1. The adjustable distance H is used to change the resistance value that the variable resistance component S can provide. In addition, the variable resistance component S may be a resistance regulator.

Furthermore, both the first conductive member 1 and the second conductive member 2 can be made of any conductive material. For example, the first conductive member 1 may be a carbon film or any other electrical conductor, and the second conductive member 2 may be a carbon brush or any other electrical conductor, but the present invention Not limited to this example. In addition, the first electrode P1 and the second electrode P2 may be a positive electrode and a negative electrode, respectively, or the first electrode P1 and the second electrode P2 may be a negative electrode and a positive electrode, respectively.

Further, the first conductive member 1 and the second conductive member 2 are separated from each other, and the second conductive member 2 is movably disposed above the first conductive member 1. For example, the second conductive member 2 can move linearly above the first conductive member 1, or the second conductive member 2 can move in an arc above the first conductive member 1.

Further, the second conductive member 2 can be used to provide a predetermined elastic force. The elastic conductive member is such that the rotatable structure 3 can be pressed down against the first conductive member 1 by the elastic force provided by the second conductive member 2.

Further, the rotatable structure 3 has an arcuate surface that slidably contacts the first conductive member 1, thereby reducing the frictional resistance between the rotatable structure 3 and the first conductive member 1 (or Friction coefficient). That is, when the second conductive member 2 drives the rotatable structure 3 to contact the first conductive member 1, since the rotatable structure 3 slidably contacts the first conductive member 1 with its curved surface, the rotatable structure 3 and the first The frictional resistance (or the coefficient of friction) between the conductive members 1 is lowered, and the wear rate of both the rotatable structure 3 and the first conductive member 1 is also lowered. Therefore, the service life and product reliability of the variable resistance component S can be improved by the use of the rotatable structure 3.

For example, the second conductive member 2 has two extending arms 21 corresponding to each other and an accommodating space 22 formed between the two extending arms 21 . In addition, the rotatable structure 3 includes a pivot shaft 30 and a pivot roller 31. The pivoting shaft 30 is connected between the two extending arms 21 and received in the accommodating space 22, and the pivoting roller 31 is pivotally disposed on the pivoting shaft 30 and partially exposed in the accommodating space 22 outer. Further, the pivot roller 31 has a circular arc surface 310 that slidably contacts the first conductive member 1.

Thereby, since the pivoting roller 31 has a circular arc surface 310 slidably contacting the first conductive member 1, the frictional resistance (or the coefficient of friction) between the pivoting roller 31 and the first conductive member 1 is lowered. And the wear rate of both the pivot roller 31 and the first conductive member 1 is also reduced. Therefore, the service life and product reliability of the variable resistance component S can be improved by the use of the pivot roller 31.

[Second embodiment]

Referring to FIG. 3, a second embodiment of the present invention provides a variable resistance component S including a first conductive member 1, a second conductive member 2, and a rotatable structure 3. It can be seen from the comparison between FIG. 3 and FIG. 1 that the greatest difference between the second embodiment of the present invention and the first embodiment is that the first embodiment uses "the pivotal connection with the circular arc surface 310. The roller 31" (shown in Figure 1), and the second embodiment uses "pivot ball 32 with a spherical surface 320" (as shown in Figure 3). Therefore, according to different needs, the rotatable structure 3 It may be "using a pivot roller 31 having a circular arc surface 310" (as shown in FIG. 1) or "using a pivoting ball 32 having a spherical surface 320" (as shown in FIG. 3).

Furthermore, as shown in FIG. 3, the rotatable structure 3 includes a pivoting shaft 30 and a pivoting ball 32. The pivoting shaft 30 is connected between the two extending arms 21 and accommodated in the accommodating space 22, and the pivoting ball 32 is pivotally disposed on the pivoting shaft 30 and partially exposed outside the accommodating space 22. In addition, the pivot ball 32 has a spherical surface 320 that slidably contacts the first conductive member 1.

Thereby, since the pivot ball 32 has a spherical surface 320 that slidably contacts the first conductive member 1, the frictional resistance between the pivot ball 32 and the first conductive member 1 is lowered, and the pivot ball is pivoted. The wear rate of 32 and the first conductive member 1 is also lowered. Therefore, the service life and product reliability of the variable resistance component S can be improved by the use of the pivot ball 32.

[Third embodiment]

Referring to FIG. 4 and FIG. 5, a third embodiment of the present invention provides a variable resistance component S including a first conductive member 1, a second conductive member 2, and a rotatable structure 3. From the comparison of FIG. 4 with FIG. 1 and the comparison between FIG. 5 and FIG. 2, the greatest difference between the third embodiment of the present invention and the first embodiment is that the second conductive member 2 of the third embodiment has a single extension arm. twenty one.

Furthermore, the rotatable structure 3 includes a pivot shaft 30 and two pivot rollers 31. The pivoting shaft 30 will extend through the extending arm 21, and the two pivoting rollers 31 can be pivotally disposed on opposite end sides of the pivoting shaft 30, respectively, and separated by the extending arm 21. Further, the pivot roller 31 has a circular arc surface 310 that slidably contacts the first conductive member 1.

Thereby, since the pivot roller 31 has a slidable contact with the first conductive member 1 The arc surface 310, so the frictional resistance between the pivot roller 31 and the first conductive member 1 is lowered, and the wear rate of both the pivot roller 31 and the first conductive member 1 is also reduced. Therefore, the service life and product reliability of the variable resistance component S can be improved by the use of the pivot roller 31.

[Fourth embodiment]

Referring to FIG. 6 , a fourth embodiment of the present invention provides a variable resistance component S including a first conductive member 1 , a second conductive member 2 , and a rotatable structure 3 . It can be seen from the comparison between FIG. 6 and FIG. 4 that the greatest difference between the fourth embodiment of the present invention and the third embodiment is that the third embodiment uses the "pivoting roller 31 having the circular arc surface 310" (FIG. 4). Shown), while the fourth embodiment uses "pivot ball 32 with a spherical surface 320" (as shown in Figure 6). Therefore, according to different requirements, the rotatable structure 3 can be "using a pivoting roller 31 having a circular arc surface 310" (as shown in FIG. 4), or "using a pivoting ball 32 having a spherical surface 320" (eg, Figure 6)).

Furthermore, as shown in FIG. 6, the rotatable structure 3 includes a pivot shaft 30 and two pivot balls 32. The pivot shaft 30 can extend through the extension arm 21, and the two pivot balls 32 can be pivotally disposed on opposite end sides of the pivot shaft 30 and separated by the extension arm 21. In addition, the pivot ball 32 has a spherical surface 320 that slidably contacts the first conductive member 1.

Thereby, since the pivot ball 32 has a spherical surface 320 that slidably contacts the first conductive member 1, the frictional resistance between the pivot ball 32 and the first conductive member 1 is lowered, and the pivot ball is pivoted. The wear rate of 32 and the first conductive member 1 is also lowered. Therefore, the service life and product reliability of the variable resistance component S can be improved by the use of the pivot ball 32.

[Fifth Embodiment]

Referring to FIG. 7 and FIG. 8 , a fifth embodiment of the present invention provides a variable power. The resistor assembly S includes a first conductive member 1, a second conductive member 2, and a rotatable structure 3. From the comparison of FIG. 7 with FIG. 1 and the comparison between FIG. 8 and FIG. 2, the greatest difference between the fifth embodiment of the present invention and the first embodiment is that the bottom surface of the second conductive member 2 of the fifth embodiment has a concave shape. Slot 23.

Furthermore, the rotatable structure 3 includes a pivot shaft 30 and a pivot roller 31. The pivot shaft 30 is received in the recess 23, and the pivot roller 31 is pivotally disposed on the pivot shaft 30 and partially exposed outside the recess 23. Further, the pivot roller 31 has a circular arc surface 310 that slidably contacts the first conductive member 1.

Thereby, since the pivoting roller 31 has a circular arc surface 310 slidably contacting the first conductive member 1, the frictional resistance between the pivoting roller 31 and the first conductive member 1 is lowered, and the pivoting roller 31 is lowered. The wear rate with both the first conductive members 1 is also lowered. Therefore, the service life and product reliability of the variable resistance component S can be improved by the use of the pivot roller 31.

[Sixth embodiment]

Referring to FIG. 9 , a sixth embodiment of the present invention provides a variable resistance component S including a first conductive member 1 , a second conductive member 2 , and a rotatable structure 3 . It can be seen from the comparison between FIG. 9 and FIG. 7 that the greatest difference between the sixth embodiment and the fifth embodiment of the present invention is that the fifth embodiment uses "the pivot roller 31 having the circular arc surface 310" (see FIG. 7). Shown), while the sixth embodiment uses "pivot ball 32 with a spherical surface 320" (as shown in Figure 9). Therefore, according to different requirements, the rotatable structure 3 may be "using a pivoting roller 31 having a circular arc surface 310" (as shown in FIG. 7), or "using a pivoting ball 32 having a spherical surface 320" (eg, Figure 9)).

Furthermore, as shown in FIG. 9, the rotatable structure 3 includes a pivot shaft 30 and a pivot ball 32. The pivot shaft 30 is received in the recess 23, and the pivot ball 32 is pivotally disposed on the pivot shaft 30 and partially exposed outside the recess 23. In addition, the pivot ball 32 has a spherical surface 320 that slidably contacts the first conductive member 1.

Thereby, since the pivot ball 32 has a spherical surface 320 that slidably contacts the first conductive member 1, the frictional resistance between the pivot ball 32 and the first conductive member 1 is lowered, and the pivot ball is pivoted. The wear rate of 32 and the first conductive member 1 is also lowered. Therefore, the service life and product reliability of the variable resistance component S can be improved by the use of the pivot ball 32.

[Seventh embodiment]

Referring to FIG. 10 and FIG. 11 , a seventh embodiment of the present invention provides a variable resistance component S including a first conductive member 1 , a second conductive member 2 , and a rotatable structure 3 . From the comparison of FIG. 10 with FIG. 1 and the comparison between FIG. 11 and FIG. 2, the greatest difference between the seventh embodiment of the present invention and the first embodiment is that in the seventh embodiment, the bottom surface of the second conductive member 2 has A groove 23, and the rotatable structure 3 includes a rolling ball 33 partially disposed within the groove 23. In addition, the rolling ball 33 can be rolledably disposed in the recess 23, and the rolling ball 33 has a spherical surface 330 that slidably contacts the first conductive member 1.

Thereby, since the rolling ball 33 has a spherical surface 330 that slidably contacts the first conductive member 1, the frictional resistance between the rolling ball 33 and the first conductive member 1 is lowered, and the rolling ball 33 and the first conductive member are rolled. 1 The wear rate of both will also decrease. Therefore, the service life and product reliability of the variable resistance component S can be improved by the use of the rolling ball 33.

[Eighth Embodiment]

Referring to FIG. 12, an eighth embodiment of the present invention provides a mechanical control device D. The mechanical regulating device D uses a variable resistance component S, and the variable resistance component S can be any one of the first to seventh embodiments. For example, as shown in FIG. 2, the variable resistance component S includes a first conductive member 1, a second conductive member 2, and a rotatable structure 3.

Furthermore, as shown in Fig. 2 and Fig. 12, the mechanical control device D is still advanced. One step includes a control component. The control component and the variable resistance component S can cooperate with each other, and the second conductive member 2 can be linearly moved or moved with respect to the first conductive member 1 by the driving of the control component. For example, the control component can be a knob R. By the rotation of the knob R (in the direction indicated by the arrow), the second conductive member 2 can drive the linear structure or the arc movement of the rotatable structure 3 on the first conductive member 1, thereby changing the variable resistance component S. The resistance value provided.

Ninth Embodiment

Referring to FIG. 13, a ninth embodiment of the present invention provides a mechanical control device D. The mechanical regulating device D uses a variable resistance component S, and the variable resistance component S can be any one of the first to seventh embodiments. For example, as shown in FIG. 2, the variable resistance component S includes a first conductive member 1, a second conductive member 2, and a rotatable structure 3.

More specifically, as shown in FIG. 2 and FIG. 13, the mechanical control device D further includes a control assembly. The control component and the variable resistance component S can cooperate with each other, and the second conductive member 2 can be linearly moved or moved with respect to the first conductive member 1 by the driving of the control component. For example, the control component can be a toggle M. By the left and right movement of the dial M (as indicated by the arrow), the second conductive member 2 can drive the linear structure or the arc movement of the rotatable structure 3 on the first conductive member 1, thereby changing the variable resistance component. The resistance value that S can provide.

[Advantageous Effects of Embodiments]

One of the advantageous effects of the present invention is that the mechanical control device D and the variable resistance assembly S thereof can be rotatably disposed on the second conductive member 2 and can be rotated by the "rotatable structure 3". Contacting the first conductive member 1" and the "rotatable structure 3 has a curved surface that slidably contacts the first conductive member 1" to reduce friction between the rotatable structure 3 and the first conductive member 1 resistance.

That is, when the second conductive member 2 drives the rotatable structure 3 to contact the first conductive member 1, since the rotatable structure 3 slidably contacts the first conductive member 1 with its curved surface, the rotatable structure 3 and the first The frictional resistance (or the coefficient of friction) between the conductive members 1 is lowered, and the wear rate of both the rotatable structure 3 and the first conductive member 1 is also lowered. Therefore, the service life and product reliability of the variable resistance component S can be improved by the use of the rotatable structure 3.

The above disclosure is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, any equivalent technical changes made by using the present specification and the contents of the drawings are included in the application of the present invention. Within the scope of the patent.

Claims (10)

A variable resistance component comprising: a first conductive member, the first conductive member is electrically connected to a first electrode; a second conductive member, the second conductive member is electrically connected to a second electrode Wherein the first conductive member and the second conductive member are separated from each other, and the second conductive member is movably disposed above the first conductive member; and a rotatable structure, the rotatable a structure rotatably disposed on the second conductive member and rotatably contacting the first conductive member; wherein the second conductive member has at least one extending arm, and the rotatable structure has a slidable Contacting the curved surface of the first conductive member. The variable resistance component of claim 1, wherein the second conductive member has another extension arm corresponding to the at least one extension arm and an accommodation formed between the two extension arms a space, wherein the rotatable structure includes a pivot shaft coupled between the two extension arms and received in the accommodating space, and a portion pivotally disposed on the pivot shaft and partially a pivoting roller that is exposed outside the accommodating space, and the pivoting roller has a circular arc surface that slidably contacts the first conductive member to reduce the pivoting roller and the first conductive Frictional resistance between the members, wherein the second conductive member is an elastic conductive member for providing a predetermined elastic force, and the rotatable structure is biased downward by the elastic force provided by the second conductive member The first conductive member. The variable resistance component of claim 1, wherein the second conductive member has another extension arm corresponding to the at least one extension arm and an accommodation formed between the two extension arms a space, wherein the rotatable structure includes a pivot shaft coupled between the two extension arms and received in the accommodating space, and a portion pivotally disposed on the pivot shaft and partially a pivoting ball that is exposed outside the accommodating space, and the pivoting ball has a spherical surface that slidably contacts the first conductive member to reduce the pivoting ball and the first guide a frictional resistance between the electric components, wherein the second conductive member is an elastic conductive member for providing a predetermined elastic force, and the rotatable structure is lowered to the top by the elastic force provided by the second conductive member Reaching the first conductive member. The variable resistance assembly of claim 1, wherein the rotatable structure comprises a pivot shaft extending through the extension arm and two opposite end portions respectively pivotally disposed on the pivot shaft And a pivoting roller spaced apart by the extending arm, and each of the pivoting rollers has a circular arc surface slidably contacting the first conductive member to reduce the pivoting roller and the a frictional resistance between the first conductive members, wherein the second conductive member is an elastic conductive member for providing a predetermined elastic force, and the rotatable structure is biased by the elastic force provided by the second conductive member The top is pressed against the first conductive member. The variable resistance assembly of claim 1, wherein the rotatable structure comprises a pivot shaft extending through the extension arm and two opposite end portions respectively pivotally disposed on the pivot shaft And a pivoting ball separated by the extending arm, and each of the pivoting balls has a spherical surface slidably contacting the first conductive member to reduce the pivoting ball and the ball The frictional resistance between the first conductive members, wherein the second conductive member is an elastic conductive member for providing a predetermined elastic force, and the rotatable structure is provided by the elastic force provided by the second conductive member The top conductive member is pressed down. The variable resistance component of claim 1, wherein the bottom surface of the second conductive member has a groove, wherein the rotatable structure comprises a rolling ball partially disposed in the groove, and The rolling ball has a spherical surface slidably contacting the first conductive member to reduce frictional resistance between the rolling ball and the first conductive member, wherein the second conductive member is for providing a predetermined elastic elastic conductive member, and the rotatable structure is biased downward against the first conductive member by an elastic force provided by the second conductive member. A mechanical control device using a variable resistance component, wherein the variable resistance component comprises: a first conductive member, the first conductive member is electrically connected to a first electrode; a second conductive member is electrically connected to a second electrode, wherein the first conductive member Separating from the second conductive members, and the second conductive member is movably disposed above the first conductive member; and a rotatable structure rotatably disposed at the first The second conductive member is rotatably contacting the first conductive member; wherein the second conductive member has at least one extending arm, and the rotatable structure has an arc slidably contacting the first conductive member Shaped surface. The mechanical control device of claim 7, further comprising: a control component, the control component and the variable resistance component interacting with each other, and the second conductive component is driven by the control component Performing a linear movement or an arc movement on the first conductive member. The mechanical control device of claim 7, wherein the second conductive member has another extending arm corresponding to the at least one extending arm and a receiving portion formed between the two extending arms a space, wherein the rotatable structure includes a pivot shaft coupled between the two extension arms and received in the accommodating space, and a portion pivotally disposed on the pivot shaft and partially a pivoting roller that is exposed outside the accommodating space, and the pivoting roller has a circular arc surface that slidably contacts the first conductive member to reduce the pivoting roller and the first conductive Frictional resistance between the members, wherein the second conductive member is an elastic conductive member for providing a predetermined elastic force, and the rotatable structure is biased downward by the elastic force provided by the second conductive member The first conductive member. The mechanical control device of claim 7, wherein the rotatable structure comprises a pivot shaft extending through the extension arm and two opposite end portions respectively pivotally disposed on the pivot shaft And a pivoting roller spaced apart by the extending arm, and each of the pivoting rollers has a circular arc surface slidably contacting the first conductive member to reduce the pivoting roller and the Frictional resistance between the first conductive members, wherein the second conductive member is used to provide a predetermined elastic force An elastic conductive member, and the rotatable structure is biased downward against the first conductive member by an elastic force provided by the second conductive member.