TWI463114B - Rotary electrical parts - Google Patents

Description

Rotary electrical parts

The present invention relates to a rotary electric component, and more particularly to a rotary electric component such as an encoder that outputs pulse code to detect a rotation angle or the like with rotation.

Heretofore, there has been proposed a rotary electric component comprising: a code plate which is formed by alternately providing a first and a second coding pattern formed by mutually conducting conduction portions and non-conduction portions on a circumferential direction of the same circumference And a rotating body that is rotatably disposed opposite to the code plate and provided with a plurality of sliders that are slidably coupled to the first and second code patterns, and are provided on the code board 1 and the concentric circles on the circumference of the second coding pattern are formed with a ring-shaped common pattern, and on the other hand, the plurality of sliders are slidably traversed by the first and second coding patterns and the common pattern, respectively. (For example, refer to Patent Document 1).

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2006-12701

However, with the above-mentioned conventional rotary electric component, since the common pattern includes a ring-shaped metal material, and the slider often slides on the common pattern, there are the following problems: early occurrence of the slider and common The sliding portion of the pattern causes wear and tear, which makes it difficult to achieve long life of the part itself.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a rotary electric component that can reduce wear of a sliding portion to achieve a long life.

A rotary electric component according to the present invention is characterized by comprising: a coding member having an arc-shaped switching pattern in which conductive portions and non-conductive portions which are electrically connected to each other are alternately provided, and an area which is shifted in a diameter direction from the switching pattern a common conductive pattern formed on the switch; a sliding contact that is slidably coupled to the switching pattern; and a common sliding contact that is slidably coupled to the common pattern; the coding member and the switching sliding contact and the common sliding connection The dots are relatively rotatable, and in the common pattern, a non-conductive portion is formed between the conductive portions corresponding to the non-conductive portion of the switching pattern.

According to the above-mentioned rotary electric component, since the non-conductive portion is provided in the common pattern, the use pattern in which the common sliding contact is often slid on the conductive portion of the common pattern can be avoided, so that the sliding of the common sliding contact and the common pattern can be reduced. The wear of the joint portion can lead to a longer life of the rotary electric component.

In the above-mentioned rotary electric component, it is preferable that a formation region of the non-conductive portion of the common pattern is formed such that an angle of the region is smaller than an angle of a formation region of the non-conductive portion of the switching pattern, and the switching sliding contact is formed When the boundary between the conductive portion and the non-conductive portion of the switching pattern is located, the common sliding contact is in contact with the conductive portion of the common pattern. In this case, when the sliding contact is switched to the conduction region of the switching pattern, the common sliding contact has entered the conduction region of the common pattern, so that the switching sliding contact is opposite to the conductive portion of the switching pattern. When the contact state of the conductive portion is switched, it is possible to prevent a situation in which the contact state of the common sliding contact with respect to the conductive portion and the non-conductive portion in the common pattern is switched, so that a stable pulse signal can be surely obtained.

In particular, in the above-described rotary electric component, it is preferable that a formation region of the non-conductive portion of the common pattern is formed within an angular range between formation regions of the non-conductive portion of the switching pattern. In this case, the lengths of the elastic wrist portions constituting one of the switching sliding contact and the common sliding contact can be designed to be substantially the same length, so that the switching sliding contact and the common sliding contact can be switched with respect to the switching pattern and common. The contact load of the pattern is easily adjusted to be substantially the same.

Further, in the above-described rotary electric component, it is preferable that the switching pattern is formed on the outer peripheral side of the common pattern. In this way, the switching pattern of the pattern accuracy is required to be provided on the outer peripheral side of the space, so that the accuracy of the pulse output obtained by switching the pattern and the contact of the switching sliding contact can be improved.

Further, in the above-described rotary electric component, it is preferable that the conductive portion of the switching pattern and the conductive portion of the common pattern are formed of a metal plate embedded in an insulating resin, and the non-conductive portion of the switching pattern And the non-conductive portion of the common pattern is formed of the insulating resin exposed from a notch portion or an opening formed in the metal plate, and the non-conductive portion of the switching pattern and the non-conductive portion of the common pattern are in a diameter The above insulating resin is continuously provided in the direction opposite to each other. In this case, for example, when the metal plate is embedded in the coding member by insert molding, the flow of the molten resin constituting one of the coding members can be made good.

Further, in the above-described rotary electric component, it is preferable that the switching sliding contact and the common sliding contact are provided on a sliding sheet integrally formed of the same metal plate, and the sliding piece is provided in a sliding sliding In the device support, the switching pattern includes a coding pattern for the first phase and a coding pattern for the second phase which are disposed in different regions on the same circumference in an insulated state, and the switching sliding contact and the common sliding connection are The slider is disposed on the coding member so as to straddle the coding pattern of the first phase and the second phase and the common pattern. In this case, the coding patterns for the first phase and the second phase can be provided in the switching pattern, and the coding pattern and the common pattern can be made conductive by the sliding sheet integrally formed of the same metal plate. Or non-conducting, the detection signals of the first phase and the second phase having different phases can be obtained with a simple configuration.

Further, in the above-described rotary electric component, the coding member and the slider may be supported in a hollow shape. When the coding member and the slider are supported in a hollow shape as described above, the wear of the sliding portion can be reduced to achieve a long life even for a hollow rotating electrical component having a long moving distance.

Furthermore, in the above-described rotary electric component, the conductive portion of the switching pattern and the conductive portion of the common pattern may be integrally formed of the same metal plate, and the coding member may be provided to be rotatable, and the switching slide may be performed. The contact includes a first sliding contact for the first phase and a second sliding contact for the second phase, and the first sliding contact and the second sliding contact are disposed in the switching pattern. At different positions on the same circumference, the common sliding contact is disposed opposite to the common pattern. In this case, the first and second sliding contacts for the first phase and the second phase can be provided on the switching sliding contact, and the same metal plate as the conductive portion of the common pattern can be formed via the conductive portion constituting the switching pattern. Since the first and second sliding contacts and the common sliding contact can be made conductive or non-conductive, the detection signals of the first phase and the second phase having different phases can be obtained with a simple configuration.

According to the present invention, since the non-conductive portion is provided in the common pattern, the use manner in which the common sliding contact is often slid on the conductive portion of the common pattern can be avoided, so that the sliding portion of the common sliding contact and the common pattern can be reduced. Wear and wear, so that the life of the rotating electrical parts can be extended.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

(Embodiment 1)

Fig. 1 is an exploded perspective view showing a rotary electric component 100 according to a first embodiment of the present invention. Fig. 2 is a perspective view showing the appearance of the rotary electric component 100 of the first embodiment. Fig. 3 is a side sectional view showing the rotary electric component 100 of the first embodiment. In the following description, the upper right side shown in FIG. 1 is referred to as "the rear side of the rotary electric component 100" or the "rear side", and the lower left side is referred to as the "the front side of the rotary electric component 100. Side" or just "front side".

In Fig. 1, the casing 1 constituting one of the outer covers is made of, for example, an insulating synthetic resin material (hereinafter referred to as "insulating resin"). A through hole 1a penetrating in the front-rear direction is provided in the center of the casing 1. The bearing portion 2 having a substantially cylindrical shape on the front side is formed on the outer surface side of the through hole 1a, and the annular portion accommodating portion 1b having a bottomed shape and a front side opening is provided on the outer surface side of the rear side. On the bottom surface of the accommodating portion 1b, a plurality of (three in the present embodiment) switch holding portions 1c formed in a concave shape are provided on the rear side. Each of the switch holding portions 1c has a substantially circular shape and is disposed at equal intervals on the bottom surface of the accommodating portion 1b. A central fixed contact and an external fixed contact including a conductive metal plate are disposed on the inner bottom surface of the switch holding portion 1c. These central fixed contacts and external fixed contacts are provided in the accommodating portion 1b by insert molding or the like during the manufacturing process of the casing 1.

A movable contact member 3 including a conductive thin metal plate is disposed on the switch holding portion 1c. The movable contact member 3 includes a peripheral portion having a ring shape slightly smaller than the switch holding portion 1c, and a movable tongue provided at the center thereof. The movable contact member 3 is disposed in a state in which the peripheral edge portion is in contact with the external fixed contact of the switch holding portion 1c, and the movable tongue is opposed to the central fixed contact. An urging member 4 formed of an elastic material such as rubber is disposed on the front side of the movable contact member 3, for example. The urging member 4 has a dome shape which is formed to bulge substantially toward the front side, and is reversed in response to a pressing operation of the operation shaft 6 described below, and the movable tongue of the movable contact member 3 is brought into contact with the central fixed contact. And, when released from the pressing operation, the elastic return is performed to return the operating shaft 6 to the original state (initial state).

The pressing member 5 is formed of, for example, an insulating resin and has a substantially annular shape. An insertion hole 5a is provided in the center of the pressing member 5. The pressing member 5 is held in the housing portion 1b by inserting the bearing portion 2 of the housing 1 into the insertion hole 5a. Further, a plurality of (three in the present embodiment) pressing portions 5b formed in a convex shape are provided at specific positions of the pressing member 5. The pressing portion 5b is provided at equal intervals and opposed to the front end portion of the urging member 4. As described above, by providing the pressing portion 5b that can press the distal end portion of the urging member 4, the urging member 4 can be reliably pressed and reversed in response to the pressing operation of the operation shaft 6 described below.

The operation shaft 6 is, for example, a substantially cylindrical shape in which a hollow resin is formed of an insulating resin, and includes a base portion 6a having a slightly larger diameter and a shaft portion 6b having a slightly smaller diameter on the distal end side of the base portion 6a. Further, a hollow insertion hole 6c penetrating forward and backward is provided in the center of the base portion 6a and the shaft portion 6b, and the insertion hole 6c is rotatably held by the outer periphery of the bearing portion 2 of the casing 1. On the outer circumferential surface of the shaft portion 6b, a plurality of (four in the present embodiment) guide pieces 6d extending from the base portion 6a toward the front side to the vicinity of the center of the shaft portion 6b are provided. The guide pieces 6d are engaged with the engagement grooves 8b of the rotating body 8 described below, and are guided by the rotating body 8 at the time of mounting. Further, on the outer peripheral surface of the shaft portion 6b, a plurality of (four in the present embodiment) engaging pieces 6e extending slightly from the base portion 6a toward the front side are provided. The engaging pieces 6e are engaged with the concave portion 8c of the rotating body 8 described below, and the rotation of the operating shaft 6 is transmitted to the rotating body 8. Further, a plurality of (four in the present embodiment) claw portions 6f are provided on the front side of the engaging piece 6e at a predetermined distance. The claw portions 6f are engaged with an opening portion of an operation knob or the like (not shown) attached to the operation shaft 6, and are held by an operation knob or the like.

The casing 7 constituting one part of the outer cover functions as a coding member, and is formed of, for example, an insulating resin, and has a substantially outer shape similar to the housing portion 1b of the casing 1, and is stacked on the front side of the casing 1. It is equipped with the status. The casing 7 is formed in a substantially cylindrical shape having a hollow shape, and has a large-diameter insertion hole 7a at the center, and an annular storage portion having a bottomed shape and a front side opening is provided on the outer side of the insertion hole 7a. 7b. On the inner bottom surface of the accommodating portion 7b, for example, a switching pattern 7c including a conductive metal plate and a common pattern 7d are provided by insert molding or the like. Further, external terminals 7e to 7g derived from the switching pattern 7c and the common pattern 7d are led out on the rear side of the casing 7. Further, the configurations of the switching patterns 7c and the common patterns 7d will be described below.

The rotating body 8 is formed, for example, of an insulating resin, and has a substantially annular shape. An opening 8a having a large diameter is formed in the center of the rotating body 8, and the rotating body 8 is held near the end portion of the operating shaft 6 by inserting the operating shaft 6 into the opening 8a. The rotator 8 is placed in the accommodating portion 7b in a state in which the surface on the rear side faces the front surface of the accommodating portion 7b while being held by the operation shaft 6. A plurality of (four in the present embodiment) engagement grooves 8b and a plurality of (four in the present embodiment) concave portions 8c are provided on the inner circumferential surface of the opening 8a of the rotary body 8. The engagement groove 8b is engaged with the guide piece 6d of the operation shaft 6, and the concave portion 8c is engaged with the engagement piece 6e of the operation shaft 6. By the engagement, the rotating body 8 is spline-engaged with the operating shaft 6. Further, a plurality of cam grooves 8d having a concavo-convex shape are formed in an annular shape on the surface on the front side of the rotary body 8. A plurality of click cams 8e are formed on the cam groove 8d, and the click cams 8e are elastically contacted with the rollers 11 held on the leaf springs 10 to cause a click feeling when the rotary body 8 rotates. .

Further, a plurality of sliding sheets 9 having sliding contact points 9a and 9b including a conductive thin metal plate are provided on the surface on the rear side of the rotating body 8. The slide sheets 9 are fixed to specific positions on the rear surface of the rotary body 8 by caulking or the like. The sliding contacts 9a, 9b of the sliding sheets 9 include elastic arms and are provided to extend rearward of the rotary electric component 100. Further, in a state in which the rotator 8 is housed in the accommodating portion 7b of the casing 7, the tip end portion thereof can be in contact with the switching pattern 7c and the common pattern 7d. In this manner, the rotating body 8 constitutes a slider, and a plurality of (two in the present embodiment) sliding sheets 9 are attached to the rear surface at equal angular intervals.

The leaf spring 10 includes a metal plate having elasticity (for example, stainless steel or phosphor bronze, etc.) and has a substantially semicircular arc shape, and is provided with a pair such that the inner peripheral portion thereof faces each other. The surface on the rear side of the leaf spring 10 is disposed at a position opposed to the cam groove 8d of the rotary body 8, and is fixed to the rear surface of the mounting member 12 to be described later by the respective end portions. In a state of being fixed to the mounting member 12, a hollow insertion hole 10a is provided in the center of the leaf spring 10. Further, at a specific position of each leaf spring 10, a roller holding portion 10b is provided. The roller holding portion 10b rotatably holds the roller 11 by rotatably supporting the shaft 11a of the roller 11.

The mounting member 12 is formed by punching and bending a metal plate, and has an annular upper plate portion 12a and a plurality of vertically extending from the upper plate portion 12a toward the rear side (four in the present embodiment). The engaging leg piece 12b; and a plurality of (six in the present embodiment) positioning pieces 12c extending perpendicularly from the upper plate portion 12a toward the rear side. A claw portion is provided at the front end of the engaging leg piece 12b, and is attached to the rotary electric component 100 in an assembled state, and is bent toward the rear surface side of the casing 1 to fix the mounting member 12. The positioning piece 12c is engaged with the engaging groove portion provided on the outer peripheral portion of the casing 1 and the casing 7, and the mounting member 12 is positioned. Further, in the mounting member 12, a hollow insertion hole 12d is provided in the center. The insertion hole 12d is set to be slightly larger than the large diameter of the shaft portion 6b of the operating shaft 6.

When the rotary electric component 100 having the above-described components is assembled, as shown in FIG. 2, the casing 7 is superposed on the front side of the casing 1, and the outer casing is formed by the casing 1 and the casing 7. The mounting member 12 is attached from the front side of the casing 7 in a state in which the operating shaft 6 is housed. In this case, as shown in FIG. 3, the operation shaft 6 is rotatably held by the bearing portion 2 of the casing 1, and the rotating body 8 is rotatably held integrally in the vicinity of the rear end portion of the shaft portion 6b. Further, the front end of the shaft portion 6b of the operation shaft 6 is in a state of protruding from the insertion hole 12d of the attachment member 12 toward the front side, and an operation knob (not shown) or the like can be attached to the projection.

The movable contact member 3, the urging member 4, and the pressing member 5 are housed in the accommodating portion 1b of the casing 1, and the rotating body 8, the sliding piece 9, the leaf spring 10, and the accommodating portion 7b are accommodated in the accommodating portion 7b of the casing 7. Roller 11. The slide piece 9 fixed to the rotary body 8 is disposed at a position where the slide contact points 9a and 9b are placed in contact with the switching pattern 7c and the common pattern 7d provided on the inner bottom surface of the housing portion 7b of the casing 7. Further, the roller 11 is in a state of being pressed to the cam groove 8d of the rotary body 8 by the leaf spring 10 fixed to the rear surface of the attachment member 12. In the assembled state, the operating shaft 6 and the rotating body 8 are rotatably held relative to the outer cover (the casing 1 and the casing 7). Further, as shown in FIG. 3, the outer peripheral portion of the rotator 8 is supported by an annular projecting portion (step portion) provided on the inner bottom surface of the accommodating portion 7b of the casing 7, so that the rotator 8 does not Move to the lower side shown in the figure.

Here, the configuration of the switching pattern 7c and the common pattern 7d provided in the casing 7 of the rotary electric component 100 of the first embodiment will be described. Fig. 4 is a plan view showing a casing 7 of the rotary electric component 100 of the first embodiment. Fig. 5 is a plan view showing a switching pattern 7c and a common pattern 7d provided on a casing 7 of the rotary electric component 100 of the first embodiment. In FIG. 4, for convenience of explanation, the slide piece 9 which is slidably connected to the switching pattern 7c and the common pattern 7d provided in the casing 7 is illustrated.

The switching pattern 7c and the common pattern 7d are inserted and formed in the manufacturing process of the casing 7 which is a coding member, and are embedded in the inner bottom surface of the accommodating portion 7b as shown in Fig. 4 . In this case, the common pattern 7d is disposed along the peripheral edge portion of the insertion hole 7a, and the external terminal 7g is led out from a part thereof (one portion on the upper side shown in FIG. 5). On the other hand, the switching pattern 7c is disposed at a position on the outer peripheral side of the common pattern 7d. The switching pattern 7c includes a coding pattern 71 for the A phase (first phase) and a coding pattern 72 for the B phase (second phase) which are disposed in an insulated state from each other, and one of the respective portions (the upper side shown in FIG. 5) A part of the external terminals 7e and 7f are derived. In the first embodiment, the switching patterns 7c and the common patterns 7d are formed of a conductive metal plate inserted into the casing 7, but the invention is not limited thereto. For example, the casing 7 may be printed and mixed. It is composed of a resin material of conductive particles.

The code pattern 72 for the A phase and the code pattern 72 for the B phase are disposed on the outer peripheral side of the common pattern 7d and in different regions on the same circumference, and are provided symmetrically in the same shape. As shown in FIG. 5, the code pattern 71 has a substantially circular arc shape, and the conductive portions 71a and the non-conductive portions 71b which are electrically connected to each other are alternately provided along the circular arc. Similarly, the code pattern 72 has a substantially circular arc shape, and the conductive portions 72a and the non-conductive portions 72b that are electrically connected to each other are alternately disposed along the circular arc. The non-conductive portions 71b and 72b are provided at equal intervals, and are formed by cutout portions that are opened on the inner side (that is, on the side of the common pattern 7d). More specifically, the non-conductive portions 71b and 72b are formed by an insulating resin exposed from the slit portion formed in the switching pattern 7c.

On the other hand, the common pattern 7d has a substantially annular shape, and the conductive portions 73a and the non-conductive portions 73b that are electrically connected to each other are alternately provided along the circumferential direction thereof. The non-conductive portions 73b are provided at equal intervals, and are formed by slit portions that are opened on the outer side (that is, on the side of the switching pattern 7c). More specifically, similarly to the non-conductive portions 71b and 72b, the non-conductive portion 73b is configured by an insulating resin exposed from the notch portion formed in the common pattern 7d. Further, the non-conductive portion 73b is provided at a position corresponding to the non-conductive portions 71b and 72b of the switching pattern 7c. In other words, the non-conductive portion 73b of the common pattern 7d and the non-conductive portions 71b and 72b of the switching pattern 7c are disposed in such a manner that the portions of the openings face each other. In this case, the formation region of the non-conductive portion 73b of the common pattern 7d is formed such that the angle of the region is smaller than the angle of the formation region of the non-conductive portions 71b, 72b of the switching pattern 7c, and particularly formed in the non-conductive portion of the switching pattern 7c. The angle between the formation regions of 71b, 72b is within (refer to the broken line portion A in Fig. 5).

Further, the conductive portions 71a, 72a, and 73a made of a metal plate and the non-conductive portions 71b, 72b, and 73b made of an insulating resin are formed in the same plane. In FIG. 5, for convenience of explanation, the portions corresponding to the notched portions in which the insulating resin constituting the casing 7 is disposed are denoted by the non-conductive portions 71b, 72b, and 73b.

As shown in FIG. 4, the slide sheets 9 have their sliding contacts 9a and 9b disposed at positions adjacent to the switching pattern 7c and the common pattern 7d. More specifically, the sliding contact 9a is disposed at a position where the conductive portion 71a, the non-conductive portion 71b, and the conductive portion 72a and the non-conductive portion 72b of the code pattern 72 in the coding pattern 71 constituting the switching pattern 7c are slidably disposed. . On the other hand, the sliding contact 9b is disposed at a position that is in sliding contact with the conductive portion 73a and the non-conductive portion 73b in the common pattern 7d. In other words, the sliding contact 9a functions as a switching sliding contact that is slidably connected to the switching pattern 7c, and the sliding contact 9b functions as a common sliding contact that is slidably connected to the common pattern 7d. The sliding contacts 9a, 9b are disposed to have substantially the same length. With respect to the relationship between the switching pattern 7c and the common pattern 7d, the sliding portion of the sliding contact 9a is located at the conductive portion 71a (72a) and the non-conductive portion 71b (72b) of the switching pattern 7c. At the time of the boundary portion, the sliding portion of the sliding contact 9b is in a state of having contacted the conductive portion 73a of the common pattern 7d.

The rotary electric component 100 according to the first embodiment having the above configuration receives the rotation operation and the pressing operation of the operation shaft 6. When the operation shaft 6 is pressed, the pressing member 5 is pressed against the axial direction of the operation shaft 6 (the rear side of the rotary electric component 100) against the urging force of the urging member 4. In this case, the urging member 4 is reversed by the pressing action of the pressing member 5, and the movable tongue of the movable contact member 3 disposed on the rear side thereof is brought into contact with the central fixed contact of the switch holding portion 1c. Fig. 6 is a side cross-sectional view showing the rotary electric component 100 when the operation shaft 6 is pressed. As shown in Fig. 6, the pressing operation is detected by bringing the movable tongue of the movable contact member 3 into contact with the central fixed contact of the switch holding portion 1c, and the detection signal is externally output.

On the other hand, when the operation shaft 6 is rotated, the rotating body 8 that is engaged with the operating shaft 6 and held is rotated accordingly, and the sliding piece 9 fixed to the rear surface thereof also rotates together. In this case, the sliding contacts 9a and 9b of the slide piece 9 are slid and rotated on the switching pattern 7c and the common pattern 7d, respectively. The sliding contact 9a slides on the conductive portion 71a and the non-conductive portion 71b in the coding pattern 71 constituting the switching pattern 7c, and similarly slides on the conductive portion 72a and the non-conductive portion 72b in the coding pattern 72 constituting the switching pattern 7c. . On the other hand, the sliding contact 9b slides on the conductive portion 73a and the non-conductive portion 73b in the common pattern 7d. That is, the sliding contacts 9a and 9b are alternately slidably alternated between a conductive region made of a metal plate and a non-conductive region made of an insulating resin.

As described above, in the rotary electric component 100 of the first embodiment, since the non-conductive portion 73b including the insulating resin is provided on the common pattern 7d, the use of the sliding contact 9b to slide on the conductive region of the common pattern 7d can be avoided. In this manner, the wear of the sliding portion of the sliding contact 9b and the common pattern 7d can be reduced, and the life of the rotating electrical component can be extended.

Further, in the rotary electric component 100 of the first embodiment, the formation region of the non-conductive portion 73b of the common pattern 7d is formed such that the angle of the region is smaller than the angle of the formation region of the non-conductive portions 71b and 72b of the switching pattern 7c, and The slide piece 9 is configured such that the sliding contact of the sliding contact 9b is located at a point where the sliding portion of the sliding contact 9a is located at the boundary portion between the conductive portion 71a (72a) and the non-conductive portion 71b (72b) of the switching pattern 7c. The portion is in a state in which the conductive portion 73a of the common pattern 7d has been touched. Thereby, the sliding contact 9b can be made to enter the conduction region (conductive portion 73a) of the common pattern 7d before the sliding contact 9a enters the conduction region (the conductive portions 71a and 72a) of the switching pattern 7c. In this case, at the time point when the sliding contact 9a enters the conduction region of the switching pattern 7c, since the sliding contact 9b has entered the conduction region to the common pattern 7d, the pair of sliding contacts 9a with respect to the switching pattern 7c When the contact state between the conductive portion 71a (72a) and the non-conductive portion 71b (72b) is switched, it is possible to prevent the state in which the contact state of the sliding contact 9b with respect to the conductive portion 73a and the non-conductive portion 73b in the common pattern 7d is switched. This makes it possible to obtain a stable pulse signal.

In particular, in the rotary electric component 100 of the first embodiment, the formation region of the non-conductive portion 73b of the common pattern 7d is included in the formation region of the non-conductive portions 71b and 72b of the switching pattern 7c. In other words, the formation region of the non-conductive portion 73b of the common pattern 7d is formed within an angle range between the formation regions of the non-conductive portions 71b and 72b of the switching pattern 7c. Thereby, the lengths of the elastic wrist portions constituting one of the sliding contacts 9a, 9b of the sliding sheet 9 can be designed to be substantially the same length, so that the sliding contacts 9a, 9b can be shared with respect to the switching pattern 7c. The contact load of the pattern 7d is easily adjusted to be substantially the same.

Further, in the rotary electric component 100 of the first embodiment, the switching pattern 7c is provided on the outer peripheral side of the common pattern 7d in the housing portion 7b of the casing 7. In this way, the pattern precision switching pattern 7c is provided on the outer peripheral side of the space, so that the accuracy of the pulse output obtained by the contact pattern 7c in contact with the sliding contact 9a can be improved.

Further, in the rotary electric component 100 of the first embodiment, the conductive portions 71a and 72a of the switching pattern 7c and the conductive portion 73a of the common pattern 7d are formed of a metal plate embedded in an insulating resin material, and the switching pattern 7c is formed. The non-conductive portions 71b and 72b and the non-conductive portion 73b of the common pattern 7d are made of an insulating resin exposed from a notch portion formed on the metal plate. Further, the non-conductive portions 71b and 72b of the switching pattern 7c and the non-conductive portion 73b of the common pattern 7d are disposed to face each other. Thereby, when the metal plate is embedded in the casing 7 by insert molding, the flow of the molten resin constituting one of the casings 7 can be made good.

Further, in the rotary electric component 100 of the first embodiment, the code pattern 72 for the A phase and the code pattern 72 for the B phase are provided on the same circumference as the switching pattern 7c in the housing portion 7b of the casing 7. The different regions are in an insulated state, and the sliding sheet 9 is disposed such that the sliding contact 9a and the sliding contact 9b are disposed to face each other across the code patterns 71 and 72 and the common pattern 7d. Therefore, the slide piece 9 integrally formed of the same metal plate can be made conductive or non-conductive between the switching pattern 7c having the A-phase and B-phase code patterns 71 and 72 and the common pattern 7d. The detection signals of the A phase and the B phase having different phases are obtained from the external terminals 7e to 7g in a simple configuration.

Further, in the rotary electric component 100 of the first embodiment, the operation shaft 6 is provided in a hollow shape, and switching is provided in the housing portion 7b of the casing 7 disposed around the shaft portion 6b of the operation shaft 6. The pattern 7c and the common pattern 7d. Therefore, even in the case of the hollow rotary electric component 100 having a long moving distance of one week, the wear of the sliding portion can be reduced to achieve a long life.

(Embodiment 2)

In the rotary electric component 100 of the first embodiment, the switching pattern 7c and the common pattern 7d provided in the housing portion 7b of the casing 7 are fixed, and the sliding sheet 9 having the sliding contacts 9a, 9b slidingly connected thereto is provided. Rotates as the operating shaft 6 rotates. In the rotary electric component according to the second embodiment, the sliding contact is fixed, and the switching pattern and the common pattern that are slidably rotated in accordance with the rotation of the operating shaft are different from the rotary electric component 100 of the first embodiment. .

Fig. 7 and Fig. 8 are exploded perspective views of the rotary electric component 200 according to the second embodiment of the present invention. Fig. 9 is a perspective view showing the appearance of the rotary electric component 200 of the second embodiment. In addition, hereinafter, the upper right side shown in FIG. 7 is referred to as "the rear side of the rotary electric component 200" or simply the "rear side", and the lower left side is referred to as "the front side of the rotary electric component 200". Side" or just "front side". In Fig. 8, the rotary electric component 200 of the second embodiment is shown from the rear side.

As shown in FIGS. 7 and 8, the rotary electric component 200 of the second embodiment includes a metal bearing member 210 having a through hole 211 and a through hole rotatably inserted into the bearing member 210. An operating shaft 220 in the second embodiment; a rotating body 230 as a coding member in which the switching pattern 231 and the common pattern 232 are rotated together with the operation shaft 220; a connecting member 240 that connects the operating shaft 220 to the rotating body 230; and a base 250; It is provided with sliding contacts 251 (251a, 251b), 252 which are slidably connected to the switching pattern 231 and the common pattern 232 of the rotating body 230, and is provided with a fixed contact 253 constituting a part of the button switch; together with the fixed contact 253 A movable contact 260 constituting one of the push button switches; and a mounting member 270 for mounting the bearing member 210 on the base 250.

The bearing member 210 includes, for example, a cylindrical portion 212 having a through hole 211 formed by die casting, and a rectangular flange portion 213 provided on the rear side of the cylindrical portion 212. A concave portion 214 having a substantially annular (annular) inner surface is formed around the through hole 211 on the surface on the rear side of the flange portion 213. Further, in one of the opposite corners of the four corners of the flange portion 213, a convex engaging piece 215 is provided which is engaged with the engaging hole provided on the front surface of the base 250. Further, a pair of protruding pieces 216 are provided at a specific position on the rear surface of the flange portion 213. The protruding piece 216 is used to fix the leaf spring 218 provided with the protruding portion 217, and the protruding portion 217 is engaged with the uneven portion 236 provided on the front surface of the rotating body 230 to cause a click feeling. The leaf spring 218 is made of, for example, phosphor bronze, has a substantially annular shape, and has a shape in which a portion including the protruding portion 217 is slightly bent toward the rear side.

The operation shaft 220 is formed of, for example, an insulating resin, and has a large diameter portion 221 formed at the center thereof, and an engagement portion 222 is formed at the rear end portion thereof. The engaging portion 222 is formed with a pair of facing flat portions 222a that engage with the engaging holes 243 of the connecting member 240 to be described later. A groove portion 223 is formed at a position on the front side of the engagement portion 222 of the operation shaft 220, and an O-ring 280 for preventing the operation shaft 220 from coming off the bearing member 210 is fixed. Further, a fixing surface 224 for fixing an operation knob (not shown) is provided at the side end portion before the operation shaft 220.

The rotating body 230 is formed, for example, of an insulating resin, and includes a cylindrical portion 233 having a substantially cylindrical shape, and a disk-shaped portion 234 provided at a rear end portion of the cylindrical portion 233. A through hole 235 corresponding to the outer shape of the coupling member 240 is provided at the center of the cylindrical portion 233 and the disk-shaped portion 234. On the front surface of the disc-shaped portion 234, a concavo-convex portion 236 that is engageable with the protruding portion 217 of the leaf spring 218 is provided. The switching pattern 231 and the common pattern 232 are provided on the rear surface of the disk-shaped portion 234. Furthermore, the configuration of the above-described switching pattern 231 and common pattern 232 will be described below.

The connecting member 240 is formed of, for example, an insulating resin, and includes a cylindrical portion 241 having a substantially cylindrical shape, and a pair of protruding pieces 242 protruding outward from the circumferential surface of the cylindrical portion 241. The through hole 235 of the rotating body 230 has a shape corresponding to the cylindrical portion 241 and the protruding piece 242. An engaging hole 243 engageable with the engaging portion 222 of the operating shaft 220 is provided at the center of the cylindrical portion 241. The rotation operation of the operation shaft 220 is engaged by the engagement of the engagement portion 222 and the engagement hole 243, and is transmitted to the connection member 240, and is transmitted to the through hole 235 by the engagement of the protruding piece 242 to the through hole 235. Rotating body 230.

The base 250 is formed, for example, of an insulating resin and has a substantially flat plate shape. In the rotary electric component 200 of the second embodiment, the case where the contact holding member on the front side and the cover member are superposed on each other to form the base 250 is shown. However, the base 250 is not limited thereto, and for example, the base may be constituted by one member or three or more members. A concave portion 254 having a substantially circular shape is provided on the front surface of the base 250, and a concave portion 255 having a circular shape smaller than the concave portion 254 is provided in the center of the concave portion 254. A central fixed contact 253a constituting the fixed contact 253 and a plurality of outer fixed contact 253b disposed on the outer periphery of the central fixed contact 253a are provided on the inner bottom surface of the recess 255. External terminals 253c and 253d connected to the central fixed contact 253a and the outer peripheral fixed contact 253b are led out to the side of the base 250. The sliding contacts 251 (251a, 251b) and 252 are provided at a specific position on the outer peripheral side of the recess 255 and at the recess 254. Furthermore, the configuration of the sliding contacts 251a, 251b, 252 will be described below. External terminals 251c, 251d, and 252a connected to the sliding contacts 251a, 251b, and 252 are led out to the side of the base 250. The sliding contacts 251a, 251b, 252 and the fixed contacts 253 are embedded in a specific position of the base 250 by insert molding during the manufacturing process of the base 250 to be insulated from each other.

The movable contact 260 is made of a conductive metal material and has a disk shape which is formed to bulge substantially toward the front side. The movable contact 260 is disposed on the recess 255 of the base 250, and is disposed such that the vicinity of the peripheral portion thereof is in contact with the outer peripheral fixed contact 253b, and the central portion thereof faces the central fixed contact 253a. When the operation shaft 220 is pressed, the movable contact 260 is pressed by the connection member 240, and is reversed in response to a pressing force of a certain degree or more, so that the central portion thereof is in contact with the central fixed contact 253a, and is pressed. When the operation is released, the elastic return is performed to return the operation shaft 220 to the original state (initial state). A sealing member 290 is disposed on the side of the movable contact 260. The sealing member 290 is intended to fix the movable contact 260 in the recess 255 of the base 250 and prevent dust or the like from entering the fixed contact 253.

The mounting member 270 is formed, for example, by performing press working on a metal plate material and performing bending processing. An opening portion 272 that exposes the tubular portion 212 of the bearing member 210 to the front side is formed on the front surface portion 271 of the mounting member 270. The side surface portion 273 of the attachment member 270 is provided to extend from the side end portion of the front surface portion 271 toward the rear side. On each of the side surface portions 273, a pair of mounting pieces 274 which are bendable on the rear surface side of the base 250 are provided at both end portions thereof. Further, a fixing piece 275 used for soldering and fixing the substrate on which the rotary electric component 200 is mounted is provided at the center of the mounting piece 274.

When the rotary electric component 200 having the above-described components is assembled, as shown in FIG. 9, the bearing member 210 is attached by the mounting member 270 in a state of being overlapped with the base 250. In this case, the tubular portion 212 of the bearing member 210 protrudes from the opening portion 272 of the attachment member 270 toward the front side. The front end of the operation shaft 220 is in a state of protruding from the through hole 211 of the tubular portion 212 toward the front side, and an operation knob (not shown) can be attached to the fixed surface 224 of the operation shaft 220. In the state thus assembled, the operation shaft 220 is rotatably held relative to the base 250. A disk-shaped portion 234 of the rotating body 230 is housed in the recess 254 of the base 250. The sliding contacts 251a, 251b, and 252 provided on the base 250 are disposed at positions that are slidable with the switching pattern 231 and the common pattern 232 provided on the rear surface of the rotating body 230.

Here, the configuration of the switching pattern 231 and the common pattern 232 provided on the rotating body 230 of the rotary electric component 200 of the second embodiment will be described. Fig. 10 is a plan view showing a rotating body 230 of the rotary electric component 200 of the second embodiment. Fig. 11 is a plan view showing a switching pattern 231 and a common pattern 232 provided on a rotating body 230 of the rotary electric component 200 of the second embodiment. Fig. 12 is a view for explaining the positional relationship between the switching pattern 231 and the common pattern 232 provided on the rotating body 230 of the rotary electric component 200 of the second embodiment, and the sliding contacts 251a, 251b, and 252 provided on the base 250. Picture. 10 to 12 are shown from the rear side of the rotary electric component 200.

The switching pattern 231 and the common pattern 232 are inserted and formed in the manufacturing process of the rotating body 230, and are embedded in the rear surface of the disk-shaped portion 234 as shown in FIG. In this case, the common pattern 232 is provided in a region on the inner peripheral side of the disk-shaped portion 234, and the switching pattern 231 is continuously provided in a region on the outer peripheral side of the common pattern 232. In FIG. 10, for convenience of explanation, the boundary position between the switching pattern 231 and the common pattern 232 is indicated by a dotted line. In the second embodiment, the switching patterns 231 and the common patterns 232 are integrally formed by one piece of the conductive metal plate inserted into the rotating body 230. However, the present invention is not limited thereto, and may be, for example, by the rotating body 230. It is composed by printing and mixing a resin material containing conductive particles.

The switching pattern 231 has a substantially annular shape, and alternately provided conductive portions 231a and 231b that are electrically connected to each other along the circumferential direction thereof. The non-conductive portion 231b is configured by openings that are provided at equal intervals. More specifically, the non-conductive portion 231b is configured by an insulating resin exposed from the opening formed in the switching pattern 231. Similarly, the common pattern 232 has a substantially annular shape, and alternately disposed conductive portions 232a and 232b that are electrically connected to each other along the circumferential direction thereof. The non-conductive portion 232b is constituted by openings that are provided at equal intervals. More specifically, the non-conductive portion 232b is configured by an insulating resin exposed from the opening formed in the common pattern 232. Here, the conductive portions 231a and 232a made of the same metal plate and the non-conductive portions 231b and 232b made of an insulating resin are formed in the same plane. In FIG. 11, for convenience of explanation, the portions corresponding to the openings in which the insulating resin constituting the rotating body 230 is disposed are denoted by the non-conductive portions 231b and 232b.

The non-conductive portion 232b of the common pattern 232 is disposed to face each other at a position corresponding to the non-conductive portion 231b of the switching pattern 231. The non-conductive portion 232b and the non-conductive portion 231b are formed by continuous openings. In this case, the formation region (the formation region of the opening portion) of the non-conductive portion 232b of the common pattern 232 is formed such that the angle of the region is smaller than the angle at which the non-conductive portion 231b of the switching pattern 231 is formed (the formation region of the opening portion). In particular, it is formed within an angle range between the formation regions of the non-conductive portions 231b of the switching pattern 231 (refer to the broken line portion B in FIG. 10).

As shown in FIG. 12, the sliding contacts 251a, 251b and the sliding contacts 252 provided on the base 250 are arranged to be parallel to each other in a state of being insulated from each other. The sliding contacts 251a, 251b are disposed in a state of being insulated from each other at a position that is slidably at a different position on the same circumference as the switching pattern 231. The slide contact 252 is disposed at a position where the common pattern 232 is slid in the vicinity (inside) of each of the slide contacts 251a and 251b. More specifically, the sliding contacts 251a and 251b are disposed at positions that are in sliding contact with the conductive portions 231a and 231b in the switching pattern 231. On the other hand, the sliding contact 252 is disposed at a position that is in sliding contact with the conductive portion 232a and the non-conductive portion 232b in the common pattern 232. That is, the sliding contacts 251a and 251b switch the sliding contacts, and the sliding contacts 252 are common sliding contacts. Here, the portion of the sliding contact points 251a and 251b that is in contact with the switching pattern 231 is disposed at a position shifted from the portion of the sliding contact 252 that is in contact with the common pattern 232 slightly in the extending direction. In this case, the relationship between the sliding contacts 251a, 251b and the sliding contact 252 and the switching pattern 231 and the common pattern 232 is designed such that the sliding portions of the sliding contacts 251a, 251b are located at the conductive portion 231a of the switching pattern 231. At a time point of the boundary portion of the conductive portion 231b, at least one of the sliding portions of the sliding contact 252 is in a state in which the conductive portion 232a of the common pattern 232 has been contacted. In the rotary electric component 200 of the second embodiment, the detection of two different phases (A phase, B phase) can be obtained by the sliding contact 251a, the sliding contact 252, the sliding contact 251b, and the sliding contact 252. signal. In other words, the sliding contact 251a functions as the first sliding contact for the first phase, and the sliding contact 251b functions as the second sliding contact for the second phase.

The rotary electric component 200 according to the second embodiment having the above configuration receives the rotation operation and the pressing operation of the operation shaft 220. When the operation shaft 220 is pressed, the coupling member 240 is pressed against the axial direction of the operation shaft 220 against the urging force of the movable contact 260. In this case, the movable contact 260 is reversed by the pressing action of the connecting member 240, and is in contact with the central fixed contact 253a of the fixed contact 253 disposed on the rear side thereof. In this manner, the pressing operation is detected by bringing the movable contact 260 into contact with the central fixed contact 253a, and the detection signal is externally output.

On the other hand, when the operation shaft 220 is rotated, the coupling member 240 that is engaged with the operation shaft 220 rotates accordingly, and the rotating body 230 that is engaged with the coupling member 240 rotates. In this case, the rotating body 230 slides and rotates the sliding contacts 251a, 251b, and 252 provided on the base 250 with the switching pattern 231 and the common pattern 232 provided on the rear surface of the rotating body 230. More specifically, the sliding contact points 251a and 251b are slidably rotated and rotated by the conductive portion 231a and the non-conductive portion 231b in the switching pattern 231, and the sliding contact 252 and the conductive portion 232a in the common pattern 232 are non-conductive. The portion 232b is slid and rotated. In other words, the sliding contacts 251a, 251b, and 252 are alternately slid on the non-conductive regions made of a metal plate and the non-conductive regions made of an insulating resin.

As described above, in the rotary electric component 200 of the second embodiment, the non-conductive portion 232b including the insulating resin is provided on the common pattern 232 in the same manner as the rotary electric component 100 of the first embodiment, so that the sliding contact 252 can be avoided. Since the conductive region of the common pattern 232 is often slidably used, the wear of the sliding portion of the sliding contact 252 and the common pattern 232 can be reduced, and the life of the rotating electrical component can be extended.

Further, in the rotary electric component 200 of the second embodiment, the formation region of the non-conductive portion 232b of the common pattern 232 is formed such that the angle of the region is smaller than the angle of the formation region of the non-conductive portion 231b of the switching pattern 231, and is slid The sliding portions of the contacts 251a and 251b are located at the boundary between the conductive portion 231a of the switching pattern 231 and the non-conductive portion 231b, and the sliding portion of the sliding contact 252 is in contact with the conductive portion 232a of the common pattern 232. . Thereby, before the sliding contacts 251a and 251b enter the conduction region (the conductive portion 231a) of the switching pattern 231, the sliding contact 252 can be made to enter the conduction region (the conductive portion 232a) of the common pattern 232. In this case, at the time when the sliding contacts 251a, 251b enter the conduction region of the switching pattern 231, since the sliding contact 252 has entered the conduction region to the common pattern 232, the pair of sliding contacts 251a, 251b are switched. When the contact state between the conductive portion 231a and the non-conductive portion 231b in the pattern 231 is switched, the state in which the contact state of the sliding contact 252 with respect to the conductive portion 232a and the non-conductive portion 232b in the common pattern 232 is prevented can be switched. This makes it possible to obtain a stable pulse signal.

In particular, in the rotary electric component 200 of the second embodiment, the formation region of the non-conductive portion 232b of the common pattern 232 is included in the formation region of the non-conductive portion 231b of the switching pattern 231. In other words, the formation region of the non-conductive portion 232b of the common pattern 232 is formed within the angular range between the non-conductive portions 231b of the switching pattern 231. Thereby, the lengths of the elastic wrist portions constituting one of the sliding contacts 251a, 251b, and 252 can be designed to be substantially the same length, so that the sliding contacts 251a, 251b, and 252 can be aligned with respect to the switching pattern 231 and the common pattern 232. The contact load is easily adjusted to be substantially the same.

Further, in the rotary electric component 200 of the second embodiment, the switching pattern 231 is provided on the outer peripheral side of the common pattern 232 on the rear surface of the disk-shaped portion 234 of the rotating body 230. In this way, since the pattern precision switching pattern 231 is provided on the outer peripheral side of the space, the accuracy of the pulse output obtained by the contact of the switching pattern 231 with the sliding contacts 251a and 251b can be improved.

Further, in the rotary electric component 200 of the second embodiment, the conductive portion 231a of the switching pattern 231 and the conductive portion 232a of the common pattern 232 are formed of a metal plate embedded in an insulating resin material, and the switching pattern 231 is non-conductive. The non-conductive portion 232b of the portion 231b and the common pattern 232 is made of an insulating resin exposed from a notch portion (opening portion) formed on the metal plate. Further, the non-conductive portion 231b of the switching pattern 231 and the non-conductive portion 232b of the common pattern 232 are continuously provided. Thereby, when the metal plate is embedded in the rotating body 230 by insert molding, the flow of the molten resin constituting one part of the rotating body 230 can be made good.

Further, in the rotary electric component 200 of the second embodiment, the rotating portion 230 that rotates in response to the rotation of the operating shaft 220 is provided with the conductive portion 231a and the common pattern 232 of the switching pattern 231 integrally formed of the same metal plate. The conductive portion 232a is simultaneously fixedly provided on the base 250 in an insulated state by the sliding contacts 251a, 251b, and 252 which are respectively slidably connected to the switching pattern 231 and the common pattern 232. Further, the sliding contacts 251a and 251b are used as the sliding contacts 251a and 251b for the A phase and the B phase, respectively. In this case, the sliding contacts 251a and 251b for the A phase and the B phase can be provided on the sliding contact 251, and the switching patterns 231 can be formed between the sliding contacts 251a and 251b and the sliding contact 252. Since the conductive portions 231a and the conductive portions 232a of the common pattern 232 are electrically connected or non-conductive, the phase A and phase B can be detected from the external terminals 251c, 251d, and 252a with a simple configuration. signal.

Furthermore, the present invention is not limited to the above embodiment, and various modifications can be made. In the above-described embodiments, the size, shape, and the like shown in the drawings are not limited thereto, and can be appropriately changed within the range in which the effects of the present invention can be exerted. Further, it can be appropriately changed and implemented without departing from the scope of the invention.

For example, in the first embodiment, the case where the switching pattern 7c is disposed on the outer peripheral side of the common pattern 7d has been described. However, the arrangement is not limited thereto and can be appropriately changed. For example, the switching pattern 7c may be disposed on the inner peripheral side of the common pattern 7d. According to this configuration, the switching pattern 7c and the common pattern 7d can be formed in a region shifted in the diameter direction. However, in consideration of the above-described improvement in the pulse output accuracy and the derivation of the external terminals 7e to 7g, it is preferable to arrange the switching pattern 7c on the outer peripheral side of the common pattern 7d as described in the first embodiment.

1. . . case

1a, 211. . . Through hole

1b, 7b. . . Storage department

1c. . . Switch holding unit

2. . . Bearing department

3. . . Movable contact member

4. . . Force component

5. . . Pressing member

5a, 6c, 7a, 10a, 12d. . . Insert hole

5b. . . Pressing part

6,220. . . Operating axis

6a. . . Abutment

6b. . . Shaft

6d. . . Guide piece

6e. . . Clip

6f. . . Claw

7. . . Housing (coding member)

7c, 231. . . Switch pattern

7d, 232. . . Common pattern

7e~7g. . . External terminal

8. . . Rotating body (slider support)

8a. . . Opening

8b. . . Engagement slot

8c. . . Concave

8d. . . Cam groove

8e. . . Click cam

9. . . Slide

9a, 9b, 251a, 251b, 252. . . Sliding joint

10. . . Leaf spring

10b. . . Roll holding unit

11. . . Roll

11a. . . axis

12,270. . . Mounting member

12a. . . Upper plate

12b. . . Engagement foot

12c. . . Positioning pieces

71, 72. . . Coding pattern

71a, 72a, 73a, 231a, 232a. . . Conductive part

71b, 72b, 73b, 231b, 232b. . . Non-conductive part

100, 200. . . Rotary electrical parts

210. . . Bearing member

230. . . Rotating body

240. . . Connecting member

250. . . Abutment

260. . . Movable contact

280. . . O ring

290. . . Sealing member

Fig. 1 is an exploded perspective view showing a rotary electric component according to a first embodiment of the present invention.

Fig. 2 is a perspective view showing the appearance of a rotary electric component according to the first embodiment.

Figure 3 is a side cross-sectional view showing a rotary electric component of the first embodiment.

Fig. 4 is a plan view showing a casing of a rotary electric component according to the first embodiment.

Fig. 5 is a plan view showing a switching pattern and a common pattern provided on a casing of a rotary electric component according to the first embodiment.

Fig. 6 is a side sectional view showing a state in which a rotary electric component according to the first embodiment is subjected to a pressing operation.

Fig. 7 is an exploded perspective view showing the rotary electric component according to the second embodiment of the present invention.

Fig. 8 is an exploded perspective view showing the rotary electric component of the second embodiment.

Fig. 9 is a perspective view showing the appearance of the rotary electric component of the second embodiment.

Fig. 10 is a plan view showing a rotary body of a rotary electric component according to a second embodiment;

Fig. 11 is a plan view showing a switching pattern and a common pattern provided on a rotating body of a rotary electric component according to the second embodiment.

Fig. 12 is a view for explaining a positional relationship between a switching pattern and a common pattern provided on a rotating body of the rotary electric component according to the second embodiment, and a sliding contact provided on the base.

7. . . Housing (coding member)

7a. . . Insert hole

7c. . . Switch pattern

7d. . . Common pattern

7e~7g. . . External terminal

71a, 72a, 73a. . . Conductive part

71b, 72b, 73b. . . Non-conductive part

9. . . Slide

9a, 9b. . . Sliding joint

Claims (7)

A rotary electric component, comprising: a coding member having an arc-shaped switching pattern alternately provided with a conductive portion and a non-conductive portion that are electrically connected to each other, and an area that is offset in a diameter direction from the switching pattern a conductive common pattern formed; a sliding contact that is slidably coupled to the switching pattern; and a common sliding contact that is slidably coupled to the common pattern; the encoding member and the switching sliding contact and the common sliding contact The conductive pattern is relatively rotatable, and in the common pattern, the non-conductive portion is formed between the conductive portions corresponding to the non-conductive portion of the switching pattern, and the non-conductive portion forming region of the common pattern is formed to be smaller than the switching The angle of the formation region of the non-conductive portion of the pattern is such that the common sliding contact is in contact with the conductive portion of the common pattern when the switching sliding contact is located at a boundary portion between the conductive portion and the non-conductive portion of the switching pattern. The rotary electric component according to claim 1, wherein the formation region of the non-conductive portion of the common pattern is formed within an angle range between the formation regions of the non-conductive portion of the switching pattern. The rotary electric component according to claim 1, wherein the switching pattern is formed on an outer peripheral side of the common pattern. The rotary electric component according to any one of claims 1 to 3, wherein the conductive portion of the switching pattern and the conductive portion of the common pattern are formed of a metal plate embedded in an insulating resin, and the switching pattern is not The conductive portion and the non-conductive portion of the common pattern are formed from The insulating resin in which the slit portion or the opening portion of the metal plate is exposed is formed, and the non-conductive portion of the switching pattern and the non-conductive portion of the common pattern are continuously provided with the insulating resin so as to face each other in the radial direction. The rotary electric component of claim 1, wherein the switching sliding contact and the common sliding contact are disposed on a sliding piece integrally formed of the same metal plate, and the sliding piece is disposed on the rotating sliding plate support; The switching pattern includes a coding pattern for the first phase and a coding pattern for the second phase which are disposed in different regions on the same circumference in a state of being insulated from each other, and the switching sliding contact and the common sliding contact are crossed. The first phase and the second phase of the coding pattern and the common pattern are arranged such that the slider is opposed to the coding member. The rotary electric component according to claim 5, wherein the coding member and the slider are supported in a hollow shape. The rotary electric component according to any one of claims 1 to 3, wherein the conductive portion of the switching pattern and the conductive portion of the common pattern are integrally formed of the same metal plate, and the encoding member is provided to be rotatable, The switching sliding contact includes a first sliding contact for the first phase and a second sliding contact for the second phase, wherein the first sliding contact and the second sliding contact are disposed. The common sliding contact is disposed opposite to the common pattern on the same circumference of the switching pattern.